CN113818556A - Precast concrete truss wall structure and construction method using same - Google Patents
Precast concrete truss wall structure and construction method using same Download PDFInfo
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- CN113818556A CN113818556A CN202111107970.8A CN202111107970A CN113818556A CN 113818556 A CN113818556 A CN 113818556A CN 202111107970 A CN202111107970 A CN 202111107970A CN 113818556 A CN113818556 A CN 113818556A
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 337
- 238000010276 construction Methods 0.000 title claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 61
- 239000004567 concrete Substances 0.000 claims abstract description 58
- 230000006835 compression Effects 0.000 claims description 63
- 238000007906 compression Methods 0.000 claims description 63
- 230000003014 reinforcing effect Effects 0.000 claims description 41
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 20
- 239000010865 sewage Substances 0.000 claims description 13
- 238000004873 anchoring Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 abstract description 9
- 230000002708 enhancing effect Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 10
- 238000009434 installation Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000010415 tidying Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/0007—Base structures; Cellars
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/0007—Base structures; Cellars
- E04B1/0015—Cellars constructed from prefabricated units
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
- E04B2/8611—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf
- E04B2/8617—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf with spacers being embedded in both form leaves
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2103/00—Material constitution of slabs, sheets or the like
- E04B2103/02—Material constitution of slabs, sheets or the like of ceramics, concrete or other stone-like material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention relates to a precast concrete truss wall structure and a construction method using the same, and more particularly, to a precast concrete truss wall structure in which a tensile precast concrete wall panel and a compressive precast concrete wall panel, which are erected to face each other and assembled to form a space for casting site concrete at a central portion, are connected to each other via a truss connection material, and are moved integrally, and are transported, moved and installed in a "1" shape, thereby greatly enhancing stability so that there is no risk of a safety accident during construction, and being installed in a "1" shape, thereby simplifying construction and greatly improving construction quality, and an underground structure construction method using the same.
Description
The present application is a divisional application of an invention patent application entitled "precast concrete truss wall structure with enhanced safety and an underground structure construction method using the same" filed on 26.01/2016, and filed on 201680002217.3.
Technical Field
The present invention relates to a precast concrete truss wall structure and a construction method thereof, and more particularly, to a precast concrete truss wall structure in which a tensile precast concrete wall panel and a compressive precast concrete wall panel, which are erected to face each other and assembled to form a space for casting site concrete at a central portion, are connected to each other via a truss connection material, and are moved integrally, and are transported, moved and installed in a "1" shape, thereby greatly enhancing stability so that there is no potential for a safety accident during construction, and the installation of the precast concrete truss wall structure in the "1" shape makes construction simple and can greatly improve construction quality, and an underground structure construction method using the same. That is, the present invention relates to a precast concrete truss wall structure having enhanced safety and an underground structure construction method using the same, which has advantages in that a tensile precast concrete wall panel and a compressive precast concrete wall panel, which are erected to face each other and assembled to form a space for casting site concrete at a central portion, are connected to each other by a truss connection material, and thus are moved integrally, thereby sufficiently withstanding external force, wind load and impact load when carrying, erecting, placing upper members, and casting concrete on a wall and a slab, and further, since the precast concrete wall body of the present invention is connected to a foundation by a lower metal fitting, an additional temporary installation material is not required when installing the precast concrete truss wall structure.
Background
In general, various underground structures having a large capacity and a large space, such as a sewage treatment plant, an underground parking lot, and a rainwater storage tank, which are buried in an underground layer, are constructed by forming a foundation after excavation is completed, forming an outer wall of the foundation with on-site concrete by a reinforced concrete construction method using a mold, and then placing a precast concrete panel or pouring a concrete panel on the upper end portion of the outer wall again.
However, in the construction method of the wall structure by the reinforced concrete construction method, since a mold must be installed to form a wall and a subsequent process can be performed only after concrete is poured into the mold on site and the concrete is hardened, there are problems that a construction period is extended, and further, not only is it necessary to install and remove the molds one by one, but also there is a problem that safety accidents frequently occur due to mold burst during the process of pouring precast concrete on site.
In order to solve the problems of the wall structure according to the conventional reinforced concrete construction method, as shown in fig. 1, korean patent laid-open publication No. 10-1001208 discloses a method for constructing a wall structure using a sandwich precast concrete wall.
In the above-described conventional construction method, after an outer wall erecting groove is formed in an upper surface of a foundation, a first precast concrete wall panel and a second precast concrete wall panel, which are a plurality of panels, are erected above the groove so as to face each other with a predetermined space therebetween, and then site concrete is poured into a space between the two facing panels, thereby forming a precast concrete wall body so as to be integrated with the panels.
However, in the above-described conventional construction method, since the first precast concrete wall panel and the second precast concrete wall panel are produced separately in a factory, then transported to a construction site and installed, respectively, and then site concrete is poured into the central space portion, there is a disadvantage that the synthetic effect of being used as an integrated wall cannot be exhibited since each precast concrete wall panel is moved alone, and further, each precast concrete wall panel formed to be long in the longitudinal direction is temporarily erected in a long and narrow erecting groove, and there is a serious problem that a safety accident may be caused by falling over (over) during construction.
In addition, in the conventional construction method, in order to prevent the first precast concrete wall panel and the second precast concrete wall panel standing alone from being separated from each other to the outside, since the through-holes must be formed and then the formwork tie rods are installed to connect them, there is a problem that the formwork tie rods are damaged in the process of pouring the site concrete into the central portion, and a problem that water leaks from the through-holes formed in the inner panel still occurs.
Therefore, in the construction of the wall of the underground structure as described above, it is still necessary to develop a novel precast concrete wall structure, which can solve the problems of the conventional art, enhance the safety during construction so that there is no risk of occurrence of a safety accident or property loss, stabilize the structure, significantly shorten the construction period, and further improve the construction quality to a great extent.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a precast concrete truss wall structure having enhanced safety, in which a precast concrete wall panel for tension and a precast concrete wall panel for compression, which are used to form a large-capacity and large-sized wall body of an underground structure of a sewage treatment plant or the like, are erected in opposite directions and assembled so that a space for casting site concrete is formed at the center, and in this case, the precast concrete wall panel for tension and the precast concrete wall panel for compression are connected to each other by a truss connecting material to move integrally, thereby sufficiently receiving external force, wind load and impact load when transporting, erecting, placing upper members, and casting concrete on the wall body and the plate, and further, the precast concrete wall panel for tension and the precast concrete wall panel for compression and a foundation are connected to each other by a lower metal device The installation is carried out, so that additional temporary installation materials are not needed, the installation is carried, moved and installed in a shape like the Chinese character '1', therefore, the safety is greatly enhanced in a mode that no fatal potential safety accidents exist in the construction process, and the installation is carried out in a shape like the Chinese character '1', therefore, the construction is simple, and the construction quality can be greatly improved.
In order to achieve the above object, according to a preferred embodiment of the present invention, there is provided a precast concrete truss wall structure having enhanced safety, in which a plurality of precast concrete wall panels are erected to face each other with a predetermined distance therebetween, and site concrete is poured into a space formed in a central portion of the precast concrete wall panels with a distance therebetween, thereby forming a wall structure such as an underground structure of a sewage treatment site, the precast concrete wall structure including: a plurality of precast concrete panels for tension 10 formed of rectangular plate-shaped precast concrete panels erected in a vertical direction on a base concrete and having a predetermined thickness, the plurality of precast concrete panels being arranged in order and continuously; and a plurality of precast concrete panels for compression 20 which are provided at positions corresponding to the plurality of precast concrete panels for tension at a predetermined distance, are formed of a rectangular plate-shaped precast concrete panel having a predetermined thickness and erected in a vertical direction on a base concrete, are aligned and continuously provided, and are connected to each other by a truss connecting member 30 at a predetermined distance, so that the precast concrete panels for tension 10 and the precast concrete panels for compression 20 are integrally moved, wherein the truss connecting member 30 includes: a first vertical rail 31a embedded inside the precast concrete wall panel 10 for stretching; a second vertical rail 31b buried inside the precast concrete wall panel 20 for compression; a plurality of horizontal members 32 which are connected to the first vertical rail 31a and the second vertical rail 31b in a horizontal direction, and which are vertically provided at predetermined intervals so that the precast concrete panel for tension 10 and the precast concrete panel for compression 20 are integrally moved; and a plurality of inclined members 33 connected in an inclined direction between the plurality of horizontal members 32 to distribute a load applied to the tensile precast concrete wall panel 10 and the compressive precast concrete wall panel 20, wherein a plurality of truss connection members are provided at each of the precast concrete wall panels 10 and 20, and a cross-sectional connection member is additionally formed at one end of a horizontal member of one of the truss connection members and the other end of a horizontal member of an adjacent truss connection member when the precast concrete wall structure is transported, lifted, and erected, so that a horizontal displacement due to a longitudinal external force can be minimized.
According to still another embodiment of the present invention, the present invention is characterized in that first and second connection materials 35a and 35b are additionally provided between the horizontal material or the inclined material and the first and second vertical rails to maximize a bonding area when the horizontal material or the inclined material and the first and second vertical rails are connected to each other.
According to another embodiment of the present invention, the present invention is characterized in that the height of the precast concrete wall panel for tension 10 is greater than that of the precast concrete wall panel for compression 20 to form an outer wall body in a wall structure such as an underground structure of a sewage treatment plant.
According to still another embodiment of the present invention, a lifting plate 36 is additionally provided at the upper free end portions of the tensile precast concrete wall panel 10 and the compressive precast concrete wall panel 20 so as to be connectable to a lifting cable, and the lifting plate provided at the upper free end portion of the compressive precast concrete wall panel 20 additionally performs the function of a stopper portion for the precast concrete panel.
According to a further embodiment of the present invention, the present invention is characterized in that a precast concrete panel is placed on the upper free end portion of the precast concrete wall panel 20 for compression, and site concrete is simultaneously poured into the central space portion between the two precast concrete wall panels and the precast concrete panel.
According to another embodiment of the present invention, the present invention is characterized in that the height of the above-described precast concrete wall panel for tension 10 and the height of the precast concrete wall panel for compression 20 are the same to form an inner wall body in a wall structure such as an underground structure of a sewage treatment plant.
According to another embodiment of the present invention, a lifting plate 36 is additionally provided at the upper free end portions of the precast concrete wall panels 10 and 20 for tension and compression so as to be connectable to a lifting cable, and the lifting plate additionally performs the function of a stopper portion for a precast concrete panel.
According to another embodiment of the present invention, the present invention is characterized in that a precast concrete panel is placed on the upper free end portions of the tensile precast concrete wall panel 10 and the compressive precast concrete wall panel 20, and site concrete is simultaneously poured into the central space portion between the two precast concrete wall panels and the precast concrete panel.
According to another embodiment of the present invention, the present invention is characterized in that the lower end portions of the tensile precast concrete wall panel 10 and the compressive precast concrete wall panel 20 are bolt-fastened to the foundation portion by means of the lower connecting metal 50 so as to be resistant to wind load or impact load.
According to another embodiment of the present invention, a truss girder for reinforcing the front end of the wall body is additionally provided on the facing inner surfaces of the tensile precast concrete wall panel 10 and the compressive precast concrete wall panel 20.
According to another embodiment of the present invention, there is provided an underground structure construction method using a precast concrete truss wall structure, including: step (a), pouring cushion layer concrete; marking the positions of the prefabricated concrete truss wall structure, the wall steel bars, the lower anchoring part and the foundation steel bar interference part; reinforcing the foundation steel bars and the wall steel bars in a mode of avoiding the interference part, and arranging water stop plates on the construction connecting parts; step (d), pouring foundation concrete and curing; marking the positions of the prefabricated concrete truss wall structure, the lower anchoring part and the column; step (f), after the lower anchoring is perforated, the precast concrete truss wall structure is erected in an integrated manner in a 1-shaped manner along the vertical direction and moves in an integrated manner towards the setting position, and then the precast concrete truss wall structure is set; step (g), bolt-connecting the lower anchoring part and the precast concrete truss wall structure by using a lower connecting metal device; and (h) setting the precast concrete truss wall structure by continuously and repeatedly performing the above-described steps (e) to (f).
According to another embodiment of the present invention, a method for constructing an underground structure using a precast concrete truss wall structure, in order to additionally reinforce the underground structure using the precast concrete truss wall structure, includes: step (i), reinforcing ribs (P) are used for adding reinforcing ribs to the sections, which are mutually connected, of the precast concrete wallboards which are arranged in order and need to be reinforced; filling filler into gaps among a plurality of prefabricated concrete wallboards which are arranged in order, performing joint filling operation, and performing mortar construction on a part from the lower part of the wall to a part with a specified height; step (k), arranging column components and beam components, and after arranging plate components on the upper sides of the column components, the beam components and the wall body components, using plate steel bars for reinforcing the bars; step (l) of pouring site concrete to the upper part of the plate member, the central part formed by the precast concrete wall panel for tension (10) and the precast concrete wall panel for compression (20) without constructing a connection part; and (m) reinforcing and installing the precast concrete truss wall structure by continuously and repeatedly performing the above-described steps (i) to (l).
According to another embodiment of the invention, the invention is characterized in that a precast concrete slab is placed on the upper free end of the precast concrete wall panel of the precast concrete truss wall, and that site concrete is simultaneously poured onto the central space between the two precast concrete wall panels and onto the precast concrete slab.
The precast concrete truss wall structure with enhanced safety according to the present invention, which is formed by the above objects and structures, and the underground structure construction method using the same, have advantages in that the precast concrete wall panel for tension and the precast concrete wall panel for compression, which are erected to face each other and assembled to form the space for casting the site concrete at the center, are not separately manufactured and moved and then installed, but are connected to each other by the truss connection material to be moved integrally, and are transported, moved and installed in a "1" shape, so that there is no potential for safety accidents or potential for property loss during construction, thereby greatly enhancing safety.
In addition, the present invention has the advantages that the precast concrete panels for tension and the precast concrete panels for compression are integrally moved by the truss connection material and moved and installed in the shape of "1", so that the assembling and installing processes are very simple and the construction quality can be greatly improved.
Further, the present invention has advantages in that an anti-drop haunch is additionally formed at the upper free end of the precast concrete panel for compression, so that the panel can be stably placed, the construction is simple, and the construction period can be shortened.
Further, the present invention has an advantage that the precast concrete wall panel for tension and the precast concrete wall panel for compression, which are erected in opposite directions and assembled in such a manner that a space for casting site concrete is formed at the center, are connected to each other by the truss connection material, thereby moving integrally, thereby sufficiently withstanding external force, wind load and impact load when carrying, erecting, placing the upper member, and simultaneously casting concrete on the wall and the panel, and securing safety without additional temporary installation material when installing since the precast concrete wall body and the foundation are connected by the lower metal member.
In addition, the invention has the advantages that the truss connecting material is used between the precast concrete wall board for stretching and the precast concrete wall board for compressing, thereby increasing the bearing capacity of the Precast Concrete (PC), and further pouring can be carried out from the slab to the wall body at one time.
Drawings
Fig. 1 is a diagram illustrating a conventional technique.
Fig. 2 is a view illustrating a precast concrete truss wall structure of the present invention.
Fig. 3 and 4 are photographs showing the truss connection material of the precast concrete truss wall structure according to the present invention.
Fig. 5 to 8 are views showing partial sections of the precast concrete truss wall structure of the present invention.
Fig. 9 is a view showing an upper end portion and an enlarged shape of the precast concrete truss wall structure of the present invention.
Fig. 10 and 11 are views illustrating a lifting plate of the precast concrete truss wall structure according to the present invention.
Fig. 12 to 16 are respective detailed views illustrating a truss connection material of the precast concrete truss wall structure according to the present invention.
Fig. 17 is a view showing the longitudinal sectional bearing force of the precast concrete truss wall structure of the present invention.
Fig. 18 and 19 are views illustrating a horizontal transfer method and a horizontal deformation of the precast concrete truss wall structure according to the present invention.
Fig. 20 and 21 are views showing lateral sectional bearing forces of the precast concrete truss wall structure according to the present invention.
Fig. 22 is a view illustrating a safety step truss of the precast concrete truss wall structure of the present invention.
Fig. 23 is a view illustrating a support reinforcing method when the precast concrete truss wall structure of the present invention is carried.
Fig. 24 and 25 are graphs showing deformation indexes of the precast concrete truss wall structure according to the present invention.
Fig. 26 is a view illustrating a slab extension method of the precast concrete truss wall structure according to the present invention.
Fig. 27 is a view showing a construction sequence of the precast concrete truss wall structure of the present invention.
Fig. 28 to 36 are views illustrating in detail the construction sequence of the precast concrete truss wall structure according to the present invention.
Fig. 37 and 38 are views illustrating a method of coupling walls of the precast concrete truss wall structure according to the present invention.
Fig. 39 is a view illustrating arrangement of reinforcing bars of the precast concrete truss wall structure according to the present invention.
Description of reference numerals
10: precast concrete wallboard for stretching 20: precast concrete wallboard for compression
30: truss connection materials 31a, 31 b: a first vertical rail and a second vertical rail
32: horizontal material 33: tilting material
40: in situ concrete
Detailed Description
According to a preferred embodiment of the present invention, there is provided a precast concrete truss wall structure having enhanced safety, in which a plurality of precast concrete wall panels are erected to face each other with a predetermined distance therebetween, and site concrete is poured into a space defined by the distance between the precast concrete wall panels, thereby forming a wall structure such as an underground structure of a sewage treatment site, the precast concrete wall structure including: a plurality of precast concrete panels for tension 10 formed of rectangular plate-shaped precast concrete panels erected in a vertical direction on a base concrete and having a predetermined thickness, the plurality of precast concrete panels being arranged in order and continuously; and a plurality of precast concrete panels for compression 20 which are provided at positions corresponding to the plurality of precast concrete panels for tension at a predetermined distance, are formed of a rectangular plate-shaped precast concrete panel having a predetermined thickness and erected in a vertical direction on a base concrete, are aligned and continuously provided, and are connected to each other by a truss connecting member 30 at a predetermined distance, so that the precast concrete panels for tension 10 and the precast concrete panels for compression 20 are integrally moved, wherein the truss connecting member 30 includes: a first vertical rail 31a embedded inside the precast concrete wall panel 10 for stretching; a second vertical rail 31b buried inside the precast concrete wall panel 20 for compression; a plurality of horizontal members 32 which are connected to the first vertical rail 31a and the second vertical rail 31b in a horizontal direction, and which are vertically provided at predetermined intervals so that the precast concrete panel for tension 10 and the precast concrete panel for compression 20 are integrally moved; and a plurality of inclined members 33 connected in an inclined direction between the plurality of horizontal members 32 to distribute a load applied to the tensile precast concrete wall panel 10 and the compressive precast concrete wall panel 20, wherein a plurality of truss connection members are provided at each of the precast concrete wall panels 10 and 20, and a cross-sectional connection member is additionally formed at one end of a horizontal member of one of the truss connection members and the other end of a horizontal member of an adjacent truss connection member when the precast concrete wall structure is transported, lifted, and erected, so that a horizontal displacement due to a longitudinal external force can be minimized.
The terms or words used in the present specification and claims should not be construed as limited to the conventional or dictionary meanings, but interpreted according to the meanings and concepts conforming to the technical spirit of the present invention on the basis of the principle that the inventor properly defines the concepts of the terms in order to explain his own invention in the best way.
Therefore, the embodiment described in the present specification and the structure shown in the drawings are merely the most preferable embodiment of the present invention and do not represent all the technical ideas of the present invention, and therefore, it should be understood that various equivalent technical solutions and modifications which can replace the above-described preferred embodiment may exist in the present application. Meanwhile, in the course of describing the present invention, in the case where it is judged that the related known art or the like may obscure the gist of the present invention, a detailed description thereof will be omitted.
Hereinafter, a precast concrete truss wall structure having enhanced safety and an underground structure construction method using the same according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.
Firstly, the precast concrete TRUSS WALL structure with enhanced safety is a PC TRUSS WALL structure body, which is abbreviated as PTW. On the other hand, in the preferred embodiment of the present invention, the above-described truss structure is explained as the truss connection material, but the above-described terms are not limited in dictionary meanings, and other terms are not excluded within the scope of achieving the same function and purpose.
First, as shown in fig. 2, in the precast concrete wall structure of the present invention, which is formed of precast concrete wall panels of rectangular plate shape erected in a vertical direction on a base concrete and having the same length and a predetermined thickness, and a precast concrete wall panel 10 for tension and a precast concrete wall panel 20 for compression formed of a plurality of panels and arranged in order in a longitudinal direction are erected to face each other with a predetermined interval therebetween and have a space portion formed at a central portion thereof, and then, a precast concrete wall structure is integrally formed by pouring in-situ concrete 40 into the space portion, in the precast concrete wall structure, a truss connection material 30 for connecting the plurality of precast concrete wall panels 10 for tension and the plurality of precast concrete wall panels 20 for compression to each other in an integrally moving manner is included in the space portion formed of the plurality of precast concrete wall panels 10 for tension and the plurality of precast concrete wall panels 20 for compression, the truss connection material 30 includes: a first vertical rail 31a embedded in the precast concrete panel for stretching 10; a second vertical rail 31b embedded in the precast concrete panel for compression 20; a plurality of horizontal members 32 provided at predetermined vertical intervals so that the first vertical rail 31a and the second vertical rail 31b are connected to each other in the vertical direction; and a plurality of inclined members 33 connected in an inclined direction between the plurality of horizontal members 32.
On the other hand, in the preferred embodiment of the present invention, the precast concrete wall panels 10 and 20 for tension as the main structural elements are explained as a compression member and a tension member, but when the precast concrete wall body of the present invention is provided, the compression member becomes the tension member after finishing, and when the setting is performed, the tension member becomes the compression member after finishing. Therefore, the compression member and the tension member, which are the main structural elements of the present invention, are not limited to the dictionary meanings of the terms, but do not exclude other terms within the scope of achieving the same function and purpose.
The above-described structural elements of the present invention are specifically described below. First, in order to form an outer wall in a wall structure such as an underground structure of a sewage treatment plant, it is preferable that the above precast concrete wall panel for tension 10 is formed to have a height greater than that of the precast concrete for compression 20 in a length direction. However, the heights of the precast concrete wall panels 10 for tension and 20 for compression may be the same according to the purpose of a user in order to form an inner wall in a wall structure such as an underground structure of a sewage treatment plant.
The precast concrete wall panel for tension 10 and the precast concrete wall panel for compression 20 are opposed to each other, and a truss girder for reinforcing the front end of the wall body is additionally provided on the inner surface thereof, so that the integration of the precast concrete truss wall structure and the precast concrete wall panel becomes stronger.
In the structural elements of the truss connecting material 30 according to the present invention, the first vertical rail 31a is embedded in the interior of the precast concrete wall panel for tension 10, and the second vertical rail 31b is provided at a position facing the first vertical rail 31a and embedded in the interior of the precast concrete wall panel for compression 20.
On the other hand, in order to integrally move the tensile precast concrete wall panel and the compressive precast concrete wall panel, the horizontal member 32 of the truss connecting member 30 connects the first vertical rail 31a and the second vertical rail 31b in the horizontal direction, and a plurality of the horizontal members 32 are provided at predetermined intervals in the vertical direction. In order to effectively disperse the load applied to the precast concrete wall panel for tension 10 and the precast concrete wall panel for compression 20, the inclined members 33 of the plurality of truss connection members 30 are connected in an inclined direction between the plurality of horizontal members 32. On the other hand, the truss connecting material of the present invention is preferably a steel pipe having a quadrangular shape or an L-shaped steel pipe, but the use of other shapes such as a circular steel pipe, an H-shaped steel, a steel bar, etc. is not excluded within the scope of achieving the same purpose and function.
On the other hand, as shown in fig. 3 and 4, in order to integrally move and install the precast concrete wall panel for tension and the precast concrete wall panel for compression in a "1" shape, it is necessary to provide a plurality of horizontal members 32 connecting the first vertical rail 31a and the second vertical rail 31b in the horizontal direction. In this case, it is preferable that the plurality of horizontal members be formed at the same vertical interval over the entire length of the precast concrete wall panel for tension and the precast concrete wall panel for compression.
On the other hand, the horizontal materials 32 are generally formed at the same interval, but the horizontal materials 32 are provided by calculating the bearing force between the precast concrete wall panel for tension 10 and the precast concrete wall panel for compression 20, and thus are not limited to being formed at the same interval.
On the other hand, the horizontal members 32 provided in the lower portions of the precast concrete wall panels 10 and 20 for tension and the horizontal members 32 provided in the upper portions of the precast concrete wall panels 10 and 20 for compression are formed to have a narrower vertical interval than the other portions, and the horizontal members 32 provided in the lower portions of the precast concrete wall panels 10 and 20 for tension and the horizontal members are formed to have a narrower vertical interval than the other portions.
That is, in order to make the precast concrete wall panel for tension 10 and the precast concrete wall panel for compression 20 vertically symmetrical with respect to the middle portion in the height direction, the horizontal members 32 provided at the upper and lower portions are provided at a narrower pitch than the horizontal member 32 provided at the middle portion.
Next, fig. 5 to 8 are views showing partial sections of the precast concrete truss wall structure. When the precast concrete truss wall structures are continuously installed, in order to prevent gaps that are not connected between the wall structures, that is, in order to prevent gaps between a plurality of precast concrete wall panels that are aligned with each other from being exposed to the external environment, filling is performed using a filler such as a waterproof material, thereby preventing the inside from being corroded.
Next, fig. 9 is an enlarged view of a portion where the upper side portion of the precast concrete truss wall structure and the truss connection member 30 are coupled. When the wall structures are connected to each other in the horizontal direction, reinforcing bars P between the panels are additionally formed at the connection portions, i.e., the sections where a plurality of precast concrete panels aligned with each other are connected to each other and the sections where reinforcement is required, and a wire mesh formed with a small diameter is formed to minimize the connection length.
In the enlarged view of the truss connecting member 30, a cross-sectional connecting member 34 is additionally formed between the horizontal members 32 and 32 in order to minimize horizontal displacement during transportation, lifting, and erection. That is, a plurality of truss connection members are formed on the precast concrete wall panels 10 and 20, and a sectional connection member is additionally formed at the other end of the horizontal member of the truss connection member adjacent to the one end of the horizontal member of the one truss connection member, so that a horizontal displacement caused by a long-term external force when the precast concrete wall structure is carried, lifted, and erected can be minimized. At this time, the reinforcing bar interference part formed at the lower end of the wall body is removed after being erected.
On the other hand, it is not excluded that the horizontal material 32 connected to the cross-sectional connecting material 34 is connected to the inclined material 33 according to the purpose of use.
Further, plate-shaped first and second connecting members 35a and 35b are additionally formed between the horizontal member 32 and the first and second vertical rails 31a and 31b, and the first and second connecting members 35a and 35b maximize the area to be joined when the horizontal member and the vertical rails are connected. That is, a first connecting material 35a and a second connecting material 35b may be additionally provided between the horizontal material 32 or the inclined material 33 and the first vertical rail 31a and the second vertical rail 31b to maximize a bonding area when the horizontal material 32 or the inclined material 33 and the first vertical rail 31a and the second vertical rail 31b are connected to each other.
Next, fig. 10 and 11 show a state where the lifting plate 36 is formed on the upper side portion of the precast concrete truss wall structure. The lifting plate 36 will be described in detail later.
And, in the following
After the prefabricated concrete truss wall structure is configured, additional formation is carried out
The bracket is shaped so as to be coupled to the through-hole by fastening a bolt and a nut to the through-hole. In this case, the gaps of the wall structures of the precast concrete trusses to be joined are filled with a material such as a waterproof material in order to prevent corrosion due to exposure to the external environment.
Next, fig. 12 is a view illustrating the truss connection material 30 inside the precast concrete truss wall structure, fig. 13 is a view illustrating a portion "a" of fig. 12, and fig. 14 is a view illustrating a portion "B" of fig. 12. Fig. 15 is a view illustrating a portion "C" of fig. 12, and fig. 16 is a view illustrating a portion "D" of fig. 12. Each part will be explained in the following.
On the other hand, as shown in fig. 22, a safety step truss is additionally provided on the outer side portion of the upper free end portion of the precast concrete wall panel 10 for tension, and the precast concrete wall panel 10 for tension and the safety step truss are fastened by a fastening bolt and an insert so as to be coupled to each other. The safety pedal truss has the advantage that an operator can safely perform work by additionally forming a safety pedal such as a combination template or an iron plate on the upper side surface of the safety pedal truss.
The maximum allowable load of the safety pedal truss is 400kg/m2Thereby, the work can be performed more safely.
Next, as shown in fig. 18, the precast concrete wall panel for tension 10 and the precast concrete wall panel for compression 20 are integrally bound, thereby lifting and carrying in a "1" shape, and an embedded head anchor is additionally installed at the outer side portion of the precast concrete wall panel for tension 10 or the precast concrete wall panel for compression 20 so as to be connected to a lifting cable with a predetermined distance from both side end portions.
The head anchor has an I-shaped cross section, and an inner head embedded inside has a longer diameter than an outer head protruding outside, thereby being more firmly fixed.
As shown in fig. 18, when the outer head portion protruding to the outside of the head anchor is connected to the lifting cable, it takes an inverted "Y" shape, and thus, when the angle of the lifting cable connected to the head anchor is spread by 60 degrees or more, the balance steel bundle is used to prevent the inclination to one side.
On the other hand, as shown in fig. 19, if the precast concrete truss wall structure is combined with the lifting cables in the above-described manner, the maximum elastic deformation occurs to about 0.8mm, and the bearing force of the truss member is about 0.3 or less when lifted, thereby having an advantage of more safety of the structure.
Next, as shown in fig. 20, a lifting iron plate, that is, a lifting plate 36 is coupled to a truss on the upper free end portions of the precast concrete wall panels 10 and 20 for tension and compression in such a manner as to be connected to a lifting cable, so that the precast concrete wall panels 10 and 20 for tension and compression are bundled in one body and can be erected in a "1" shape. That is, the lifting plate 36 is additionally provided at the upper free end portions of the precast concrete wall panels 10 and 20 for tension so as to be connectable to a lifting rope, and when the height of the precast concrete wall panel 10 for tension is made larger than the height of the precast concrete wall panel 20 for compression so as to form an outer wall body in a wall structure such as an underground structure of a sewage treatment plant, the lifting plate provided at the upper free end portion of the precast concrete wall panel 20 for compression additionally performs a function of a stopper portion for a precast concrete panel (fig. 11). When the height of the precast concrete panel for tension 10 and the height of the precast concrete panel for compression 20 are made to be the same so as to form an inner wall in a wall structure such as an underground structure of a sewage treatment plant, a lifting plate 36 is additionally provided at upper free end portions of the precast concrete panels for tension 10 and compression 20 so as to be connectable to a lifting rope, and the lifting plates additionally perform a stopper function for the precast concrete panels (fig. 10). On the other hand, in order to prevent the corner portions from being damaged when the precast concrete truss wall structure is erected, a breakage preventing finger board and an L-shaped steel are additionally formed at the lower end portions of the tensile precast concrete wall panel 10 and the compressive precast concrete wall panel 20.
On the other hand, as shown in fig. 21, the lifting iron plate formed as above is connected to the lifting rope, so that the maximum elastic deformation of the central portion between the precast concrete truss wall structures is formed to be about 3.0mm, and the bearing force ratio of the truss members is about 0.7 or less when lifted, thereby providing an advantage of more safe structure.
On the other hand, the lifting plate is preferably formed on one side of the upper free ends of the precast concrete wall panels 10 and 20 for tension and compression, but it is not excluded that the lifting plate may be formed on both sides within a range to achieve the same purpose and function.
The lower ends of the tensile precast concrete wall panel 10 and the compressive precast concrete wall panel 20 are preferably fastened to the foundation portion by bolts, but it is not excluded that the fastening may be performed by other fastening mechanisms within a range that achieves the same purpose and function. That is, the lower end portions of the precast concrete wall panels 10 and 20 for tension and compression are bolted to the foundation portion via the lower connecting metal fittings 50 so as to be resistant to wind load and impact load.
On the other hand, the precast concrete truss wall structure is transported in a "1" shape as one structure, and a support reinforcing structure is disposed in a predetermined internal space in order to prevent the wall structure from being deformed when the precast concrete truss wall structure is transported in a horizontal direction. In addition, in order to prevent deformation due to external impact when the truck is loaded and transported, a skid is additionally disposed at a portion contacting a bed of the truck.
Next, fig. 24 to 25 are graphs showing the deformation index of the precast concrete truss wall structure, and the external force applied by the lateral external stress gradually increases from the lower side to the upper side.
On the other hand, as shown in fig. 26, a panel structure S is placed on the upper free end portion of the precast concrete wall panel 20, and a panel reinforcing plate is additionally provided on the upper free end portion in order to prevent the panel structure S from being placed in a position where the panel structure S cannot be placed due to insufficient covering length.
The reinforcing bars are constructed by additionally arranging precast concrete slab connection horizontal bars and horizontal bar placement metal members so that reinforcing bars are additionally arranged on the inner sides of the tensile precast concrete wall panel 10 and the compressive precast concrete wall panel 20 using reinforcing bars, and the precast concrete connection horizontal bars are arranged in the 1/2 th interval of the overall height.
As shown in fig. 37, fig. 37 is a view showing a step of reinforcing the T-shaped structure by the reinforcing bars, and fig. 38 is a view showing a step of reinforcing the structure in the cross section by the reinforcing bars, and when the wall structures are coupled to each other, the reinforcing bars are arranged so as to be more firmly coupled to the inside of the wall structures.
On the other hand, the first connecting member, the second connecting member, the interval between the horizontal members, the safety step, the covering length method, and the like, which are the structural elements of the precast concrete truss wall structure, may be further added or may be omitted according to the construction purpose and the construction method, and the installation position and the number of the structural elements are not excluded.
On the other hand, referring to fig. 27, the method for constructing an underground structure using a precast concrete truss wall structure according to the present invention includes: step (a), pouring cushion layer concrete; marking the positions of the prefabricated concrete truss wall structure, the wall steel bars, the lower anchoring part and the foundation steel bar interference part; reinforcing the foundation steel bars and the wall steel bars in a mode of avoiding the interference part, and arranging water stop plates on the construction connecting parts; step (d), pouring foundation concrete and curing; marking the positions of the prefabricated concrete truss wall structure, the lower anchoring part and the column; step (f), after perforating the lower anchor, erecting the precast concrete truss wall structure with the structural elements in an integrated manner in a 1-shaped manner along the vertical direction and moving the precast concrete truss wall structure to the setting position in an integrated manner, and then setting the precast concrete truss wall structure; step (g), connecting the lower part anchoring and the precast concrete truss wall structure by using a lower part connecting metal device; and (h) setting the precast concrete truss wall structure by continuously and repeatedly performing the above-described steps (e) to (f).
In addition, the method for constructing an underground structure using a precast concrete truss wall structure includes the steps of: step (i), reinforcing ribs P are used for additionally reinforcing the connection intervals and necessary intervals between the plates, namely reinforcing ribs P are used for additionally reinforcing the intervals for mutually connecting a plurality of precast concrete wallboards which are arranged in order and the intervals needing to be reinforced; filling filler into gaps between walls, performing joint filling operation, performing mortar construction on the parts from the lower parts of the walls to the specified height, namely filling filler into the gaps between a plurality of prefabricated concrete wallboards which are arranged in order, performing joint filling operation, and performing mortar construction on the parts from the lower parts of the walls to the specified height; step (k), arranging column components and beam components, and after arranging plate components on the upper sides of the column components, the beam components and the wall body components, using plate steel bars for reinforcing the bars; step (l) of pouring site concrete into the upper part of the plate member and the central part formed by the precast concrete wall panels for tension 10 and the precast concrete wall panels for compression 20; and (m) reinforcing and installing the precast concrete truss wall structure by continuously and repeatedly performing the above-described steps (i) to (l).
In this case, according to a preferred embodiment of the present invention, a precast concrete slab may be placed on the upper free end portions of the precast concrete wall panels of the precast concrete truss wall, and site concrete may be simultaneously poured into the central space portion between the two precast concrete wall panels and the precast concrete slab.
Next, fig. 28 to 36 are views illustrating the construction method in detail, and as shown in fig. 28, the upper side of the precast concrete truss wall structure is connected to a crane, and a rubber pad is disposed at the lower side, thereby maximally preventing damage from being received when the wall structure is erected.
Next, as shown in fig. 29 and 30, in order to prevent the wall structure from collapsing, a support for erection is additionally disposed at a predetermined position of one end of the precast concrete truss wall structure, and as shown in fig. 31, in order to prevent the gap between the wall structures from being exposed to the external environment, a caulking material is filled in the outside, and a filling agent is filled in the inside, thereby performing double filling.
Next, as shown in fig. 32, when the precast concrete truss wall structure is completely fixed to the ground, after the erection bracing is released, as shown in fig. 33 and 34, a water stop plate, an upper wall portion, and slab reinforcement are additionally installed on the upper side of the wall structure. Further, the distal end reinforcing rib and the main reinforcing bar are additionally arranged.
When the above-described steps are completed, as shown in fig. 35, the site concrete is additionally poured between the precast concrete wall panel for tension 10 and the precast concrete wall panel for compression 20, and as shown in fig. 36, the waterproofing work is additionally performed between the gaps.
In the method, in the base concrete pouring and curing step (d), a line marking operation is performed to mark the installation position of the precast concrete truss wall structure, and the position of the truss interference part is marked.
On the other hand, the above-described foundation precast concrete has advantages in that a lower fixing bolt is additionally provided to the lower connecting metal fitting 50 in order to resist wind load or impact load at the lower end of the precast concrete truss wall structure, thereby strengthening the fixing strength and further stably fixing.
When the above arrangement is completed, a waterproofing-improving work is additionally performed on the outside of the precast concrete truss wall structure, and the waterproofing-improving work is additionally performed on a portion joined to the slab structure, a portion joined to the ground, and a joining portion between the precast concrete truss wall structures having an additional property, thereby further increasing the inner water-tightness and durability.
On the other hand, fig. 39 is a view showing an arrangement order of the reinforcing ribs of the precast concrete truss wall structure, and the arrangement order of the reinforcing ribs of the precast concrete truss wall structure includes: step 1, assembling a wall body; step 2, removing the exposed reinforcing steel bars at the externally exposed perforated part and then arranging reinforcing ribs; step 3, arranging reinforcing ribs and fixing the positions of the reinforcing ribs; step 4, after the model is arranged, pouring by utilizing concrete; and step 5, removing the model and tidying the periphery, thereby completing the setting.
Industrial applicability
As described above, the present invention connects truss-connecting materials formed by arranging horizontal and inclined materials buried between the first and second vertical rails and the precast concrete wall panels inside the precast concrete wall panels in a truss form and is integrated with the inner and outer walls using a tilter. Therefore, the precast concrete truss wall structure of the present invention can sufficiently resist various external forces when carrying, erecting, receiving wind load, receiving impact load, placing upper parts, pouring concrete to the wall and the slab at the same time, etc., thereby requiring no additional temporary installation material such as a support member, etc., having no limitation in thickness and height of the wall, and being applicable not only to the outer wall of the structure but also to the inner wall and the multi-layered wall. And, the present invention has a structure that can simultaneously cast a wall body and a cement board without a ground pile. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing detailed description. Moreover, not only the meaning and scope of the claimed invention, but also all the modifications and variations that can be derived from the equivalent concept of the claimed invention are within the scope of the present invention.
Claims (13)
1. A precast concrete truss wall structure with enhanced safety, in which a plurality of precast concrete wall panels are erected to face each other with a predetermined distance therebetween, and site concrete is poured into a space formed in the center of the precast concrete wall panels with a distance therebetween, thereby forming a wall structure such as an underground structure of a sewage treatment plant,
the precast concrete wall structure includes:
a plurality of precast concrete panels (10) for tension, which are formed by rectangular plate-shaped precast concrete panels standing vertically on the base concrete and having a predetermined thickness, and are orderly and continuously arranged; and
a plurality of precast concrete panels for compression (20) which are provided at positions corresponding to the plurality of precast concrete panels for tension at a predetermined distance from each other, are formed of a rectangular plate-shaped precast concrete panel having a predetermined thickness and erected vertically on the base concrete, and are arranged in order continuously,
the precast concrete wall panel for tension (10) and the precast concrete wall panel for compression (20) are integrally moved by connecting the precast concrete wall panel for tension (10) and the precast concrete wall panel for compression (20) spaced apart from each other by a predetermined distance through a truss connection material (30),
the truss connection material (30) includes:
a first vertical rail (31a) embedded inside the precast concrete wall panel (10) for stretching;
a second vertical rail (31b) embedded inside the precast concrete wall panel (20) for compression;
a plurality of horizontal members (32) which connect the first vertical rail (31a) and the second vertical rail (31b) in the horizontal direction, and which are provided in the vertical direction at predetermined intervals so that the precast concrete panel for tension (10) and the precast concrete panel for compression (20) move integrally; and
a plurality of inclined materials (33) connected in an inclined direction between the plurality of horizontal materials (32) to distribute a load applied to the precast concrete wall panel for tension (10) and the precast concrete wall panel for compression (20),
a plurality of truss connecting materials are respectively arranged on the precast concrete wall panels (10, 20), and when the precast concrete wall structure is transported, lifted and erected, a section connecting material is additionally formed on one side end part of the horizontal material of one truss connecting material and the other side end part of the horizontal material of the adjacent truss connecting material, so that the horizontal displacement caused by external force in the length direction can be minimized.
2. The precast concrete truss wall structure with enhanced safety as recited in claim 1, wherein a first connection material (35a) and a second connection material (35b) are additionally provided between the horizontal material or the inclined material and the first vertical rail and the second vertical rail to maximize an area to be joined when the horizontal material or the inclined material is connected to the first vertical rail and the second vertical rail.
3. The precast concrete truss wall structure with enhanced safety as claimed in claim 1, wherein the height of the precast concrete wall panel for tension (10) is greater than that of the precast concrete wall panel for compression (20) to form an outer wall in a wall structure such as an underground structure of a sewage treatment site.
4. The precast concrete truss wall structure with enhanced safety as claimed in claim 3, wherein a lifting plate (36) is additionally provided on the upper free end portions of the tensile precast concrete wall panel (10) and the compressive precast concrete wall panel (20) so as to be connectable to a lifting cable, and the lifting plate provided on the upper free end portion of the compressive precast concrete wall panel (20) additionally performs the function of a stopper for the precast concrete panel.
5. The precast concrete truss wall structure with enhanced safety as claimed in claim 4, wherein a precast concrete slab is placed on the upper free end portion of the precast concrete wall panel (20) for compression, and site concrete is simultaneously poured on the central space portion between the two precast concrete wall panels and the precast concrete slab.
6. The precast concrete truss wall structure with enhanced safety as claimed in claim 1, wherein the height of the precast concrete wall panel for tension (10) and the height of the precast concrete wall panel for compression (20) are the same to form an inner wall body in the wall structure such as an underground structure of a sewage treatment site.
7. The precast concrete truss wall structure with enhanced safety as claimed in claim 6, wherein a lifting plate (36) is additionally provided on the upper free end portions of the tensile precast concrete wall panel (10) and the compressive precast concrete wall panel (20) so as to be connectable to a lifting cable, and the lifting plate additionally performs the function of a stopper portion for the precast concrete panel.
8. The precast concrete truss wall structure with enhanced safety as claimed in claim 7, wherein a precast concrete slab is placed on the upper free end portions of the tension precast concrete wall panel (10) and the compression precast concrete wall panel (20), and site concrete is simultaneously poured on the central space portion between the two precast concrete wall panels and the precast concrete slab.
9. The precast concrete truss wall structure with enhanced safety as claimed in claim 1, wherein the lower end portions of the precast concrete wall panels for tension (10) and the precast concrete wall panels for compression (20) are bolt-fastened to the foundation portion by means of lower connecting metal fittings (50) so as to be able to withstand wind load or impact load.
10. The precast concrete truss wall structure with enhanced safety according to claim 1, wherein a truss girder for reinforcing the front end of the wall is additionally provided on the facing inner surfaces of the tensile precast concrete wall panel (10) and the compressive precast concrete wall panel (20).
11. A method for constructing an underground structure using a precast concrete truss wall structure, which is constructed using the precast concrete truss wall structure having the enhanced safety according to any one of claims 1 to 10, the method comprising:
step (a), pouring cushion layer concrete;
marking the positions of the prefabricated concrete truss wall structure, the wall steel bars, the lower anchoring part and the foundation steel bar interference part;
reinforcing the foundation steel bars and the wall steel bars in a mode of avoiding the interference part, and arranging water stop plates on the construction connecting parts;
step (d), pouring foundation concrete and curing;
marking the positions of the prefabricated concrete truss wall structure, the lower anchoring part and the column;
step (f), after the lower anchoring is perforated, the precast concrete truss wall structure is erected in an integrated manner in a 1-shaped manner along the vertical direction and moves in an integrated manner towards the setting position, and then the precast concrete truss wall structure is set;
step (g), bolt-connecting the lower anchoring part and the precast concrete truss wall structure by using a lower connecting metal device; and
and (h) setting the precast concrete truss wall structure by continuously and repeatedly performing the steps (e) to (f).
12. The method of constructing an underground structure using a precast concrete truss wall structure according to claim 11, wherein the method of constructing an underground structure using a precast concrete truss wall structure comprises:
step (i), reinforcing ribs (P) are used for adding reinforcing ribs to the sections, which are mutually connected, of the precast concrete wallboards which are arranged in order and need to be reinforced;
filling filler into gaps among a plurality of prefabricated concrete wallboards which are arranged in order, performing joint filling operation, and performing mortar construction on a part from the lower part of the wall to a part with a specified height;
step (k), arranging column components and beam components, and after arranging plate components on the upper sides of the column components, the beam components and the wall body components, using plate steel bars for reinforcing the bars;
step (l) of pouring site concrete to the upper part of the plate member, the central part formed by the precast concrete wall panel for tension (10) and the precast concrete wall panel for compression (20) without constructing a connection part; and
and (m) reinforcing and setting the precast concrete truss wall structure by continuously and repeatedly performing the steps (i) to (l).
13. A method of constructing an underground structure using a precast concrete truss wall structure as recited in claim 12, wherein a precast concrete slab is placed on an upper free end portion of the precast concrete wall panel of said precast concrete truss wall, and site concrete is simultaneously poured on said precast concrete slab and a central space portion between the two precast concrete wall panels.
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| Application Number | Priority Date | Filing Date | Title |
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| KR20150019710 | 2015-02-09 | ||
| KR10-2015-0019710 | 2015-02-09 | ||
| KR1020150072105A KR101630235B1 (en) | 2015-02-09 | 2015-05-22 | Precast truss wall structure and construction method of underground structure using thereof |
| KR10-2015-0072105 | 2015-05-22 | ||
| CN201680002217.3A CN106661881A (en) | 2015-02-09 | 2016-01-26 | Safety-enhanced pc truss wall structure, and underground-structure construction method using same |
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| CN201680002217.3A Division CN106661881A (en) | 2015-02-09 | 2016-01-26 | Safety-enhanced pc truss wall structure, and underground-structure construction method using same |
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| CN113818556A true CN113818556A (en) | 2021-12-21 |
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| CN202111107970.8A Pending CN113818556A (en) | 2015-02-09 | 2016-01-26 | Precast concrete truss wall structure and construction method using same |
| CN201680002217.3A Pending CN106661881A (en) | 2015-02-09 | 2016-01-26 | Safety-enhanced pc truss wall structure, and underground-structure construction method using same |
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| JP (1) | JP6448817B2 (en) |
| KR (2) | KR101630235B1 (en) |
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| KR101880813B1 (en) * | 2016-10-20 | 2018-07-20 | 이은호 | A sandwitch pc pannel structure and construction method of structure using thereof |
| KR102100330B1 (en) * | 2016-11-04 | 2020-04-13 | (주)연우피씨엔지니어링 | The underground wall structure and construction method thereof |
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Also Published As
| Publication number | Publication date |
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| WO2016129826A1 (en) | 2016-08-18 |
| KR101630235B1 (en) | 2016-06-14 |
| KR101630238B1 (en) | 2016-06-14 |
| JP6448817B2 (en) | 2019-01-09 |
| CN106661881A (en) | 2017-05-10 |
| JP2018505981A (en) | 2018-03-01 |
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