CN113216606A - Construction device and construction method for single-side formwork of outer wall - Google Patents
Construction device and construction method for single-side formwork of outer wall Download PDFInfo
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- CN113216606A CN113216606A CN202110329764.5A CN202110329764A CN113216606A CN 113216606 A CN113216606 A CN 113216606A CN 202110329764 A CN202110329764 A CN 202110329764A CN 113216606 A CN113216606 A CN 113216606A
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- 238000010276 construction Methods 0.000 title claims abstract description 66
- 238000009415 formwork Methods 0.000 title claims abstract description 49
- 239000011449 brick Substances 0.000 claims abstract description 92
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 2
- 239000011469 building brick Substances 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 210000003205 muscle Anatomy 0.000 description 12
- 230000003014 reinforcing effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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Abstract
The invention discloses a construction device and a construction method for a single-side formwork of an outer wall, wherein a brick wall is built along the outer wall on the outer side of the outer wall, and an operation groove between the outer wall and a foundation pit is backfilled synchronously; binding a steel bar framework of the outer wall, and erecting a template on the inner side of the outer wall, wherein the template is arranged opposite to the brick wall, and a pouring space is formed between the template and the brick wall; a support rod is arranged on the inner side of the template, one end of the support rod is abutted against the template, and the other end of the support rod is abutted against the ground; and pouring concrete in the pouring space to form the outer wall. According to the construction method of the single-side formwork of the outer wall, the outer wall is isolated from the slope protection pile foundation through the brick wall, water flow permeation outside the outer wall during pouring construction of the outer wall is avoided, meanwhile, the brick wall can be used as a guide wall of the outer wall and is arranged opposite to the formwork inside the outer wall to form a pouring space, normal construction of the outer wall is guaranteed, and construction quality is improved.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an external wall single-side formwork erecting construction device and a construction method.
Background
Along with city underground space's development, large-scale deep basal pit construction is also more and more, the condition that building basement outer wall and foundation ditch edge supporting construction distance are too close appears often, the construction site is narrow, the basement outer wall only has 500mm apart from the pile limit distance, lead to unable normal outside at the outer wall to prop up and establish the outer wall template, and the slope protection pile foundation at foundation ditch edge has three prestressed anchorage cable tip and steel sheet area, the anchor rope stretches out pile face 300 ~ 400mm and varies, bring very big difficulty for basement structure and outer wall waterproofing, make the seepage prevention risk also great, influence the engineering quality.
Disclosure of Invention
The invention mainly aims to provide an outer wall single-side formwork erecting construction device and a construction method, and aims to solve the problems that in the prior art, an outer wall outer side formwork cannot be erected normally in basement outer wall construction, so that the risk of water leakage is high, and the like.
In order to achieve the purpose, the invention provides a construction method for a single-side formwork of an external wall, which comprises the following steps:
building a brick wall along the sideline of the outer wall on the outer side of the outer wall construction position, and synchronously backfilling an operation groove between the outer wall and the foundation pit;
binding a steel bar framework of the outer wall, arranging a template on the inner side of the outer wall, wherein the template is arranged opposite to the brick wall, and a pouring space is formed between the template and the brick wall;
a support rod is arranged on the inner side of the template, one end of the support rod is abutted against the template, and the other end of the support rod is abutted against the ground;
and pouring concrete in the pouring space to form the outer wall.
Preferably, the step of building brick walls along the outer wall on the outer side of the outer wall and synchronously backfilling the operation groove between the outer wall and the foundation pit comprises the following steps:
setting ring beams with the height of 200-260 mm at intervals of 1.8-2.4 m along the vertical extension direction of the brick wall;
and adopting a steel bar with the diameter of 6-8 mm to hoop the ring beam.
Preferably, after the step of hooping the ring beam by using the steel bar with the diameter of 6mm to 8mm, the method further comprises the following steps:
the brick wall is internally provided with a drawknot rib with the diameter of 8 mm-12 mm, one end of the drawknot rib is connected with a slope protection pile foundation in the foundation pit, the other end of the drawknot rib is connected with the ring beam, and the drawknot rib is bent in the ring beam.
Preferably, set up diameter 8mm ~ 12 mm's drawknot muscle in the brick wall, the one end of drawknot muscle is connected with the bank protection pile foundation in the foundation ditch, the other end of drawknot muscle with the collar tie beam is connected, the drawknot muscle still includes after buckling step in the collar tie beam:
and building T-shaped walls protruding outwards from the brick walls at intervals in the horizontal direction of the brick walls, wherein the T-shaped walls are in one-to-one correspondence with and abutted against the slope protection pile foundations.
Preferably, the step of building along the brick wall horizontal direction interval from the outside convex tee wall of brick wall, tee wall and slope protection pile foundation one-to-one and butt still includes:
setting constructional columns with the width of 200-260 mm in the brick wall at intervals of 4.5-5.5 m in the horizontal extension direction of the brick wall;
and adopting a steel bar with the diameter of 6-8 mm to hoop the constructional column.
Preferably, the step of performing reinforcement cage binding of the outer wall, and erecting a template at the inner side of the outer wall, the template and the brick wall being arranged oppositely, and the step of forming a pouring space between the template and the brick wall includes:
welding a plurality of secondary keels on one side of the template, which is far away from the brick wall, wherein the secondary keels are horizontally arranged, the secondary keels are arranged at intervals along the vertical extending direction of the template, and the distance between every two secondary keels is sequentially reduced from top to bottom;
the template deviates from one side welding a plurality of main joist of brick wall, the vertical setting of main joist is a plurality of the main joist is followed the horizontal extending direction interval of template sets up, per two interval between the main joist is 500mm ~ 600 mm.
Preferably, the template deviates from one side welding a plurality of main joist of brick wall, the main joist is vertical to be set up, and is a plurality of the main joist is followed the horizontal extending direction interval of template sets up, every two after the step that interval between the main joist is 500mm ~ 600mm, still include:
the main joist top sets up the dead lever, the one end of dead lever with the slope protection pile foundation is connected, the other end of dead lever with the top of main joist is connected.
Preferably, the secondary keel and the main keel both comprise two steel pipes connected side by side, and the diameter of each steel pipe is 45-50 mm.
Preferably, the step of arranging a support rod on the inner side of the formwork, wherein one end of the support rod is abutted against the formwork, and the other end of the support rod is abutted against the ground comprises:
embedding a plurality of ground anchors in the ground, wherein the ground anchors are arranged at intervals away from the template, and at least one ground anchor is arranged close to the template;
and connecting one end of the support rod, which is far away from the template, with the ground anchor.
The invention also provides an external wall single-side formwork construction device, which is used for the external wall single-side formwork construction method, and the external wall single-side formwork construction device comprises:
the brick wall is arranged on the outer side of the outer wall;
the template is arranged on the inner side of the outer wall, the template is arranged opposite to the brick wall, a pouring space is formed between the template and the brick wall, and the outer wall is formed in the pouring space;
the bracing piece, the bracing piece sets up the template deviates from one side of brick wall, the one end of bracing piece with the template butt, the other end of bracing piece with the template deviates from the ground butt of one side of brick wall.
According to the construction method for the single-side formwork of the outer wall, the brick wall is built between the outer wall and the slope protection pile foundation, the outer wall is isolated from the slope protection pile foundation, water flow permeation outside the outer wall during pouring construction of the outer wall is avoided, the waterproof effect outside the outer wall is guaranteed, meanwhile, the brick wall can be used as a guide wall of the outer wall and is arranged opposite to the template inside the outer wall, a pouring space is formed between the template and the brick wall, the outer wall can be poured and formed in the pouring space, normal construction of the outer wall is guaranteed, and construction quality is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a first embodiment of a construction method for a single-side formwork of an external wall according to the present invention;
FIG. 2 is a schematic flow chart of a second embodiment of the construction method for erecting a formwork on one side of an external wall according to the present invention;
FIG. 3 is a schematic side view of the single-side formwork erecting construction device for an exterior wall according to the present invention;
FIG. 4 is an enlarged view of area A of FIG. 3;
FIG. 5 is a schematic front view of the single-side formwork erecting construction device for an external wall according to the present invention;
fig. 6 is a schematic cross-sectional view of the single-side formwork erecting construction device for the external wall of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Slope |
2 | Form panel |
| 1 | |
21 | |
| 11 | |
22 | |
| 111 | |
23 | Fixing rod |
| 12 | T- |
3 | |
| 13 | |
31 | Earth anchor |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a construction method for a single-side formwork of an outer wall.
Referring to fig. 1, a schematic flow chart of a first embodiment of the construction method of the single-side formwork of the external wall of the present invention is shown, and the method includes the following steps:
s100, building a brick wall along the sideline of the outer wall at the outer side of the outer wall construction position, and synchronously backfilling an operation groove between the outer wall and a foundation pit;
step S200, binding a steel bar framework of the outer wall, arranging a template on the inner side of the outer wall, wherein the template is arranged opposite to the brick wall, and a pouring space is formed between the template and the brick wall;
step S300, arranging a support rod on the inner side of the template, wherein one end of the support rod is abutted against the template, and the other end of the support rod is abutted against the ground;
and S400, pouring concrete in the pouring space to form the outer wall.
As shown in fig. 3 to 6, in the construction method for the single-side formwork of the external wall of the embodiment, the brick wall 1 is built between the external wall and the slope protection pile foundation 100, so that the external wall is isolated from the slope protection pile foundation 100, water seepage on the outer side during external wall pouring construction is avoided, and the waterproof effect on the outer side of the external wall is ensured.
In one embodiment of the invention, the thickness of the brick wall 1 is 240mm, when the brick wall 1 is built, mortar joints are full, the building height per day is not more than 1.5 m, the backfill construction of an operation groove is carried out after one day of building interval, and the backfill material is graded sandstone. The masonry and backfill can be constructed in sections, and the influence of cross operation is avoided.
Referring to fig. 2, a flowchart of a second embodiment of the method for constructing a single-side formwork of an external wall according to the present invention is shown, based on the first embodiment, after step S100, the method includes:
step S110, setting ring beams with the height of 200-260 mm at intervals of 1.8-2.4 m along the vertical extension direction of the brick wall;
and step S120, adopting a steel bar with the diameter of 6-8 mm to hoop the ring beam.
As shown in fig. 1, 3 and 4, the integrity and the space rigidity of the brick wall 1 are enhanced by arranging the ring beam 11 in the brick wall 1, the ring beam 11 provides a transverse reinforcing support for the brick wall 1, so that adverse effects caused by uneven settlement of a foundation or large vibration load and the like on the brick wall 1 are prevented, the strength and the overall stability of the brick wall 1 are ensured, the concrete pouring construction of the outer wall is normally carried out, and the construction quality of the outer wall is ensured. In one embodiment of the invention, a 240mm high ring beam 11 is arranged along the height of the brick wall 1 every 2.0 meters, the reinforcing bars of the ring beam 11 are 4 phi 10 reinforcing bars and stirrup phi 6 reinforcing bars, the ring beam 11 is consolidated by adopting C20 concrete, the strength of the ring beam 11 is ensured, the integral strength of the brick wall 1 is enhanced by the ring beam 11, and the construction quality is ensured.
Further, based on the second implementation described above, the third embodiment of the present invention, after step S120, includes:
and S130, arranging a tie bar with the diameter of 8-12 mm in the brick wall, wherein one end of the tie bar is connected with a slope protection pile foundation in the foundation pit, the other end of the tie bar is connected with the ring beam, and the tie bar is bent in the ring beam.
As shown in fig. 3, fig. 5 and fig. 6, be provided with drawknot muscle 111 in the brick wall 1 in this embodiment, connect circle roof beam 11 and slope protection pile foundation 100 through drawknot muscle 111, the stability of circle roof beam 11 has further been improved, each circle roof beam 11 all is connected with drawknot muscle 111, drawknot muscle 111 stretches into not less than 500mm in the circle roof beam 11, and drawknot muscle 111 bends after stretching into circle roof beam 11, make drawknot muscle 111 catch on circle roof beam 11, it is not hard up to avoid being connected between circle roof beam 11 and the slope protection pile foundation 100, beat expansion bolts on slope protection pile foundation 100 simultaneously and then weld with drawknot muscle 111, guarantee the joint strength between drawknot muscle 111 and the slope protection pile foundation 100.
Further, based on the third implementation, as a fourth embodiment of the present invention, after step S130, the method further includes:
and S140, building T-shaped walls protruding outwards from the brick walls at intervals along the horizontal direction of the brick walls, wherein the T-shaped walls are in one-to-one correspondence with and abut against the slope protection pile foundations.
As shown in fig. 3, 5 and 6, when the brick wall 1 is built, the T-shaped wall 12 is built on one side of the brick wall 1, which is far away from the template 2, the T-shaped wall 12 is tightly abutted to the slope protection pile, so that the transverse deviation of the brick wall 1 is avoided, the stability of the position of the brick wall 1 is ensured, the accuracy of the construction position of the outer wall is ensured, and the construction quality is further ensured. In one embodiment of the invention, a T-shaped wall 12 is built every other slope protection pile foundation 100 in the horizontal direction and is propped against the slope protection pile, a tie bar 111 is arranged at each ring beam 11 in the T-shaped wall 12 and is connected with the slope protection pile foundations 100,
based on the fourth embodiment, a fifth embodiment of the construction method of the single-side formwork of the external wall of the present invention is that after step S140, the method further includes:
s150, arranging constructional columns with the width of 200-260 mm in the brick wall at intervals of 4.5-5.5 m in the horizontal extension direction of the brick wall;
and S160, adopting a steel bar with the diameter of 6-8 mm to hoop the constructional column.
As shown in fig. 4, the structural columns 13 are built in the brick wall 1 to further enhance the integrity and stability of the brick wall 1, the structural columns 13 provide vertical reinforcing supports for the brick wall 1, and the structural columns 13 are connected with each layer of ring beam 11 to form a structural frame capable of resisting bending and shearing, so that the overall stability of the brick wall 1 can be effectively improved, and the brick wall 1 is prevented from collapsing.
Based on the above embodiment, as a sixth embodiment of the present invention, the step S200 includes:
step S210, welding a plurality of secondary keels on one side of the template, which is far away from the brick wall, wherein the secondary keels are horizontally arranged, the secondary keels are arranged at intervals along the vertical extending direction of the template, and the distance between every two secondary keels is sequentially reduced from top to bottom;
step S220, welding a plurality of main keels on one side of the template, which deviates from the brick wall, wherein the main keels are vertically arranged, a plurality of main keels are arranged at intervals along the horizontal extending direction of the template, and the distance between every two main keels is 500-600 mm.
As shown in fig. 4, one side welding that template 2 deviates from brick wall 1 has a plurality of main joist 21 and a plurality of secondary joist 22, guarantees template 2's bulk strength and rigidity through main joist 21 and secondary joist 22, and the vertical setting of main joist 21, secondary joist 22 level set up, makes template 2's bulk strength promote through main joist 21 and secondary joist 22 cross arrangement, has further promoted whole construction quality. In one embodiment of the invention, the template 2 panel adopts a shaped steel template 2, the secondary keel 22 is horizontally arranged, and the distance from bottom to top is 300mm, 300mm, 500mm, 500mm and 600 mm; the vertical setting of main joist 21, interval 600mm guarantees 2 intensity of template.
Further, in a seventh embodiment of the present invention, based on the above embodiment, after step S220, the method further includes:
and S230, arranging a fixed rod at the top end of the main keel, wherein one end of the fixed rod is connected with the slope protection pile foundation, and the other end of the fixed rod is connected with the top end of the main keel.
As shown in fig. 3, all be provided with dead lever 23 on each main joist 21 top, the one end and the bank protection pile foundation 100 of dead lever 23 are connected, and the other end and the main joist 21 of dead lever 23 are connected to it is vertical spacing with main joist 21, thereby fixed with template 2, avoid template 2 come-up, promoted template 2's stability, further improved construction quality.
In this embodiment, the secondary keel 22 and the main keel 21 both comprise two steel pipes connected side by side, and the diameter of each steel pipe is 45 mm-50 mm. As shown in fig. 4, the secondary keel 22 and the main keel 21 both adopt phi 48 double steel pipes, so that the strength is high, the overall strength of the template 2 can be effectively improved, and the construction quality is ensured.
Based on the above embodiment, as an eighth embodiment of the present invention, step S300 includes:
step S310, pre-burying a plurality of ground anchors on the ground, wherein the ground anchors are arranged at intervals away from the template, and at least one ground anchor is arranged close to the template;
and step S320, connecting one end of the support rod, which is far away from the template, with the ground anchor.
As shown in fig. 3, in the present embodiment, the distance between the struts of the support rod 3 in the horizontal direction is 600 mm. The anchor 31 is pre-buried when the strong point of horizontal support pole 3 is poured for the ground bottom plate, and anchor 31 quantity is 3, with 3 fasteners locking of bracing piece. Simultaneously for preventing 2 come-ups of template, carry out the drawknot with the nearest first earth anchor 31 of wall with turn buckle and wire rope to 2 steel forms, further promoted 2 stability of template, the condition emergence of come-up, running mould and the bloated membrane appears in template 2 when avoiding the outer wall to pour the construction, further promoted construction quality.
The invention also provides an external wall single-side formwork construction device, which is used for the external wall single-side formwork construction method, and comprises a brick wall 1, a formwork 2 and a support rod 3, wherein the brick wall 1 is arranged on the outer side of the external wall; the template 2 is arranged on the inner side of the outer wall, the template 2 is arranged opposite to the brick wall 1, a pouring space is formed between the template 2 and the brick wall 1, and the outer wall is formed in the pouring space; bracing piece 3 sets up in the one side that template 2 deviates from brick wall 1, the one end and the 2 butts of template of bracing piece 3, and the other end of bracing piece 3 and the ground butt of template 2 one side that deviates from brick wall 1.
As shown in fig. 3 to 6, in the construction method for the single-side formwork of the external wall of the embodiment, the brick wall 1 is built between the external wall and the slope protection pile foundation 100, so that the external wall is isolated from the slope protection pile foundation 100, water seepage on the outer side during external wall pouring construction is avoided, and the waterproof effect on the outer side of the external wall is ensured.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A construction method for a single-side formwork of an external wall is characterized by comprising the following steps:
building a brick wall along the sideline of the outer wall on the outer side of the outer wall construction position, and synchronously backfilling an operation groove between the outer wall and the foundation pit;
binding a steel bar framework of the outer wall, arranging a template on the inner side of the outer wall, wherein the template is arranged opposite to the brick wall, and a pouring space is formed between the template and the brick wall;
a support rod is arranged on the inner side of the template, one end of the support rod is abutted against the template, and the other end of the support rod is abutted against the ground;
and pouring concrete in the pouring space to form the outer wall.
2. The method for constructing a formwork of a single side of an exterior wall according to claim 1, wherein the step of building brick walls along the exterior wall on the outside of the exterior wall and simultaneously backfilling a working groove between the exterior wall and a foundation pit comprises the following steps:
setting ring beams with the height of 200-260 mm at intervals of 1.8-2.4 m along the vertical extension direction of the brick wall;
and adopting a steel bar with the diameter of 6-8 mm to hoop the ring beam.
3. The construction method of the single-side formwork of the external wall of claim 2, wherein after the step of hooping the girt with the steel bars with the diameter of 6mm to 8mm, the construction method further comprises the following steps:
the brick wall is internally provided with a drawknot rib with the diameter of 8 mm-12 mm, one end of the drawknot rib is connected with a slope protection pile foundation in the foundation pit, the other end of the drawknot rib is connected with the ring beam, and the drawknot rib is bent in the ring beam.
4. The single-side formwork erecting construction method for the external wall of claim 2, wherein a tie bar with a diameter of 8mm to 12mm is arranged in the brick wall, one end of the tie bar is connected with a slope protection pile foundation in a foundation pit, the other end of the tie bar is connected with the ring beam, and after the bending step in the ring beam, the method further comprises the following steps:
and building T-shaped walls protruding outwards from the brick walls at intervals in the horizontal direction of the brick walls, wherein the T-shaped walls are in one-to-one correspondence with and abutted against the slope protection pile foundations.
5. The exterior wall unilateral formwork erecting construction method according to claim 4, wherein after the step of building T-walls protruding outwards from the brick walls at intervals along the horizontal direction of the brick walls, the T-walls and the slope protection pile foundations are in one-to-one correspondence and abut, the method further comprises the following steps:
setting constructional columns with the width of 200-260 mm in the brick wall at intervals of 4.5-5.5 m in the horizontal extension direction of the brick wall;
and adopting a steel bar with the diameter of 6-8 mm to hoop the constructional column.
6. The single-side formwork erecting construction method for the external wall of claim 4, wherein the step of binding the steel reinforcement framework of the external wall and erecting a formwork on the inner side of the external wall, wherein the formwork is arranged opposite to the brick wall, and a pouring space is formed between the formwork and the brick wall comprises the following steps:
welding a plurality of secondary keels on one side of the template, which is far away from the brick wall, wherein the secondary keels are horizontally arranged, the secondary keels are arranged at intervals along the vertical extending direction of the template, and the distance between every two secondary keels is sequentially reduced from top to bottom;
the template deviates from one side welding a plurality of main joist of brick wall, the vertical setting of main joist is a plurality of the main joist is followed the horizontal extending direction interval of template sets up, per two interval between the main joist is 500mm ~ 600 mm.
7. The exterior wall unilateral formwork erecting construction method according to claim 6, wherein after the step of welding a plurality of main joists on a side of the formwork away from the brick wall, the main joists being vertically arranged, the main joists being spaced apart from each other in a horizontal extending direction of the formwork, and a distance between every two main joists being 500mm to 600mm, the method further comprises:
the main joist top sets up the dead lever, the one end of dead lever with the slope protection pile foundation is connected, the other end of dead lever with the top of main joist is connected.
8. The construction method of the single-side formwork of the external wall of claim 6, wherein the secondary keel and the main keel respectively comprise two steel pipes which are connected side by side, and the diameter of each steel pipe is 45 mm-50 mm.
9. The method for constructing the single-side formwork of the external wall according to any one of claims 1 to 8, wherein the step of arranging a support bar at the inner side of the formwork, wherein one end of the support bar is abutted against the formwork, and the other end of the support bar is abutted against the ground comprises the steps of:
embedding a plurality of ground anchors in the ground, wherein the ground anchors are arranged at intervals away from the template, and at least one ground anchor is arranged close to the template;
and connecting one end of the support rod, which is far away from the template, with the ground anchor.
10. An exterior wall unilateral formwork support construction device, wherein the exterior wall unilateral formwork support construction device is used for the exterior wall unilateral formwork support construction method according to claims 1 to 9, and the exterior wall unilateral formwork support construction device comprises:
the brick wall is arranged on the outer side of the outer wall;
the template is arranged on the inner side of the outer wall, the template is arranged opposite to the brick wall, a pouring space is formed between the template and the brick wall, and the outer wall is formed in the pouring space;
the bracing piece, the bracing piece sets up the template deviates from one side of brick wall, the one end of bracing piece with the template butt, the other end of bracing piece with the template deviates from the ground butt of one side of brick wall.
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| CN114000537A (en) * | 2021-10-18 | 2022-02-01 | 上海建工四建集团有限公司 | Single-side formwork erecting method suitable for ultra-high outer wall of deep foundation pit |
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