CN114750266B - Construction method of square outside formwork system - Google Patents
Construction method of square outside formwork system Download PDFInfo
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- CN114750266B CN114750266B CN202210310547.6A CN202210310547A CN114750266B CN 114750266 B CN114750266 B CN 114750266B CN 202210310547 A CN202210310547 A CN 202210310547A CN 114750266 B CN114750266 B CN 114750266B
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- 238000010276 construction Methods 0.000 title claims abstract description 62
- 238000009415 formwork Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 84
- 239000010959 steel Substances 0.000 claims description 84
- 238000009434 installation Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 21
- 230000008093 supporting effect Effects 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 15
- 238000012423 maintenance Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 239000004746 geotextile Substances 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000011440 grout Substances 0.000 description 8
- 230000005484 gravity Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000009417 prefabrication Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 241000357293 Leptobrama muelleri Species 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/26—Assemblies of separate moulds, i.e. of moulds or moulding space units, each forming a complete mould or moulding space unit independently from each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/04—Producing shaped prefabricated articles from the material by tamping or ramming
- B28B1/045—Producing shaped prefabricated articles from the material by tamping or ramming combined with vibrating or jolting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/093—Producing shaped prefabricated articles from the material by vibrating or jolting by means directly acting on the material, e.g. by cores wholly or partly immersed in the material or elements acting on the upper surface of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
- B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/068—Landing stages for vessels
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The invention discloses a construction method of a square outside formwork system, and relates to the technical field of building formworks. The construction method of the square outside template system comprises the following steps: manufacturing a bottom die, a first side die, a second side die and an angle die, installing the first side die, the second side die and the angle die, erecting a construction platform, installing a horse leg core die, pouring concrete in a layered manner, curing the concrete and removing the die plate. The construction method of the square outside template system has simple construction steps, can effectively resist floating of the outside template and the horse leg core mold, is convenient for installing and removing the template, and improves the square prefabricating efficiency.
Description
Technical Field
The invention relates to the technical field of building templates, in particular to a construction method of a square outside template system.
Background
The gravity wharf is a harbor construction building which resists slippage or overturning of the building by means of the gravity of the self structure, and in the manually constructed wharf structure, the gravity wharf is firm and durable in structure, good in freezing resistance and ice resistance, capable of bearing larger ground load and ship load, strong in adaptability to larger concentrated load, wharf ground overload and loading and unloading process change, simple in construction and low in maintenance cost, and is widely used. In the gravity wharf structure constructed manually, square blocks are widely used because of small size, prefabrication and high installation speed; the structural form of the square determines the structural form of the square dock and determines the bearing capacity of the square dock.
In the process of prefabricating the square, the structural form of a square outside template (a template arranged on the side surface of a bottom die and used for pouring concrete) system is related to the prefabricated square structural form, the surface appearance quality of the square and the concrete pouring quality, the installing and dismantling difficulty of the template and the square prefabricating efficiency; in the formwork supporting process, a bottom die, a side die and a core die are required to be arranged, a flange template structure at the top is also required to be arranged, and the stability of template installation can influence the pouring quality of concrete and influence the quality of prefabricated square blocks; in the concrete pouring process, the outer side templates can generate the problems of floating, shifting and the like which affect the concrete pouring quality, and how to prevent the outer side templates from floating in the concrete pouring process is a problem which needs to be considered seriously in the square outer side template installation process; in addition, in the concrete pouring process, the concrete leakage phenomenon also exists, and how to prevent the concrete leakage is also a problem to be considered in the template mounting process.
Disclosure of Invention
At least one of the purposes of the invention is to provide a construction method of a square outside formwork system, which can improve the efficiency of installing and dismantling the square outside formwork, prevent the outside formwork from floating in the concrete pouring process, prevent concrete from leaking and improve the prefabrication efficiency of the square, aiming at solving the problems of difficult assembly and disassembly of the square outside formwork, stability in the formwork supporting process, formwork floating and slurry leakage in the concrete pouring process in the prior art.
In order to achieve the above object, the present invention adopts a technical scheme including the following aspects.
The construction method of the square outside template system comprises the following steps:
step one: manufacturing a bottom die, a first side die, a second side die and an angle die;
step two: installing a first side die, a second side die and an angle die;
step three: building a construction platform;
step four: installing a horse leg core mold;
step five: pouring concrete; pouring concrete in a layered pouring mode, and vibrating the concrete in the pouring process;
step six: curing the concrete; covering geotextile, plastic film or sprinkling maintenance on the concrete surface after the concrete pouring is completed;
step seven: removing the template; and when the cast concrete reaches the form removal strength, removing the flange form, removing the horse leg core mold connecting rod component fixed at the top of the first side mold, and removing the horse leg core mold, the first side mold and the second side mold to avoid the form touching the surface of the square.
In the first step, the manufacturing of the bottom die comprises the following steps: firstly, manufacturing a cushion layer, setting out side lines of the cushion layer according to the design size of the cushion layer, supporting a template at the side line position, pouring concrete at the inner side of the template, and pre-burying a plurality of vertex angle members in the cushion layer before initial setting of the concrete; after the cushion layer is manufactured, a bottom die foundation is manufactured at the top of the cushion layer, and then two horse leg bottom boxes are arranged at the top of the bottom die foundation.
In the first step: when the bottom die foundation is manufactured, firstly adopting angle steel or channel steel to manufacture the binding of the bottom die foundation, arranging the notch of the angle steel or the channel steel towards the inner side of the binding, and then arranging reinforcing steel bars at the middle part and the bottom of the binding to manufacture a bottom die foundation framework; when the bottom die foundation framework is manufactured, PVC pipes or steel pipes are bound at the bottom of the bottom die foundation framework, the PVC pipes or steel pipes are arranged in parallel, so that through holes are formed in the bottom of the bottom die foundation after poured concrete is solidified, and the opposite pull rods penetrate through the through holes to fix the bottom of the side die on the outer side of the bottom die foundation.
Preferably, when prefabricating a square block with a sink at the bottom, in the first step: a movable mortise is arranged between the two leg bottom boxes, the movable mortise is of a trapezoid structure, and the width of the movable mortise is consistent with the width of the bottom die foundation.
Preferably, in the first step: when the first side die and the second side die are manufactured, a rectangular steel panel with the thickness of 6-8 mm is adopted as a template panel, a flat steel frame is welded around the panel, a plurality of vertical ribs, transverse ribs, back bars and surrounding ribs are sequentially arranged on the outer side of the panel, the heights of the first side die and the second side die are consistent, and the length of the first side die is larger than that of the second side die; when the first side die is manufactured, two groups of mounting holes are formed in the top of the first side die.
Preferably, when prefabricating a square with a boss on top, in the first step: when the first side die is manufactured, a trapezoid flange is arranged between two groups of mounting holes at the top of the first side die, and the thickness of the flange is consistent with that of the panel; when the square block with the oblique angle at the top is prefabricated, in the first step, when the second side die is manufactured, the panel is spliced by the vertical part and the deflection part, the bottom of the deflection part is connected with the top of the vertical part, and a supporting rod is arranged between the top of the deflection part and the back rod.
Preferably, in the first step: when the angle mould is manufactured, an angle mould support is arranged on the outer side of the panel, and when the angle mould support is arranged, a bracket with a triangular section is welded by adopting channel steel or angle steel.
Preferably, the second step includes: installing a first side die on the outer sides of the first side face and the first side face, installing a second side die on the outer sides of the second side face and the second side face, and arranging a slurry stopping belt at joints of the bottom die, the first side die and the second side die after the first side die and the second side die are installed; when a square block with an oblique angle at the bottom is prefabricated, installing a second side die, firstly installing the angle die on the second side face and/or the outer side of the opposite face of the second side face, and then enabling the second side die to be attached to the angle die for installation; when prefabricating a square with a boss on top, a flange template is installed between the oblique sides of the first side mold flange.
Preferably, in the third step: the construction platform comprises a platform support and a pedal, when the construction platform is erected, the pedal is welded at the top of the platform support, then the platform support is arranged at the top of the side mould, and a guardrail is arranged at the outer side of the platform support; when the construction platform is erected, inclined struts are arranged at the bottoms of the platform supports, and landing ladders are arranged at four corners of the construction platform.
Preferably, in the fourth step: when the horse leg core mold is installed, the horse leg core mold is coaxially installed at the top or bottom of the horse leg bottom box, and the top of the horse leg bottom box is fixed at the top of the first side mold through the horse leg core mold connecting rod member.
In summary, due to the adoption of the technical scheme, the invention has at least the following beneficial effects:
the bearing capacity of the bottom foundation can be enhanced by arranging the bottom die with a double-layer structure formed by the cushion layer and the bottom die foundation; the bottom box of the horse leg is arranged at the top of the bottom die foundation, and the horse leg hole is formed at the bottom of the prefabricated square block, so that the square block is convenient to hoist; through set up trapezium structure's movable tongue-and-groove between the box at the bottom of the top of die block basis, two horse leg, form groove structure in the bottom of prefabricated square, in the square installation, cooperate with the boss at the square top of having installed through the recess of waiting to install the square bottom, increase the positioning accuracy of square in the installation.
The mounting holes are formed in the top of the first side die, so that the horse leg core die is conveniently fixed by adopting the horse leg core die connecting rod member, and the horse leg core die is prevented from floating upwards; through setting up trapezoidal flange structure at the top of first side form, set up the flange template on the slope side of trapezoidal flange, be convenient for form boss structure at the top of prefabricated square, increase prefabricated square and install under water's positioning accuracy. Through set up the angle mould between second side and second side form, be convenient for form the oblique angle structure in the bottom of prefabricated square, when square hoist and mount under water, the lower water resistance of square can be slowed down to the oblique angle, increases the stability of square under water.
By arranging the construction platform at the top of the template, construction work is convenient for constructors to carry out at the top of the template; the safety of constructors is ensured by arranging guardrails on the outer side edge (the side far away from the template) of the construction platform; through setting up the ladder that falls in construction platform's four corners, the constructor of being convenient for is construction platform from top to bottom.
Drawings
FIG. 1 is a block outside template system elevation view of an exemplary embodiment of the present invention.
FIG. 2 is a schematic view of the square bottom die shown in FIG. 1.
FIG. 3 is a side view of the square outside form system shown in FIG. 1.
FIG. 4 is a top view of a square outside template system according to an exemplary embodiment of the present invention.
FIG. 5 is a schematic view of another form of square bottom die.
Fig. 6 is a schematic view of another form of a first side mold.
FIG. 7 is a side view of another form of a block out side form system.
Fig. 8 is a side view of another form of a second side mold.
Fig. 9 is a top view of the second side mold shown in fig. 8.
Fig. 10 is a side view of an angular mold of an exemplary embodiment of the present invention.
FIG. 11 is a schematic diagram of another form of a square outside template system.
Fig. 12 is an enlarged schematic view of the bottom die circle shown in fig. 2.
Fig. 13 is a schematic view of the corner member shown in fig. 1.
The marks in the figure are as follows: 1-bottom die, 11-cushion, 12-bottom die foundation, 121-first side, 122-second side, 1210-through hole, 123-horse leg bottom box, 124-movable tongue-and-groove, 2-side die, 200-panel, 201-vertical rib, 202-horizontal rib, 203-back bar, 2030-connecting rib, 204-round rib, 2040-connecting plate, 205-lifting lug, 21-first side die, 210-mounting hole, 211-flange, 212-flange template, 22-second side die, 221-vertical part, 222-deflection part, 223-support bar, 23-grout stop belt, 3-construction platform, 31-platform support, 32-pedal, 4-diagonal brace, 5-guardrail, 51-skirting board, 6-pair pull bar, 7-top angle member, 700-seamless steel pipe, 701-steel plate, 702-channel steel, 703-top angle bolt, 8-falling ladder, 81-hook, 82-backing plate, 9-angle die, 91-angle die support.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, so that the objects, technical solutions and advantages of the present invention will become more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
FIG. 1 illustrates a block out template system according to an exemplary embodiment of the present invention. The block out template system of this embodiment includes: the side die comprises a bottom die 1 and a side die 2, wherein the bottom die 1 comprises a cushion layer 11 and a bottom die foundation 12, the bottom die foundation 12 is positioned at the top of the cushion layer 11, the cushion layer 11 and the bottom die foundation 12 are both rectangular structures, and the sectional area of the bottom die foundation 12 is smaller than the sectional area of the cushion layer 11; the bottom die foundation 12 is of a steel-concrete structure, the bottom die foundation 12 comprises a steel reinforcement framework and concrete, the steel reinforcement framework consists of a steel section frame and steel reinforcement, and the bottom die foundation 12 is of the steel-concrete structure, so that the bearing capacity of the bottom die foundation 12 can be improved; the top of the bottom die foundation 12 is provided with two prismatic frustum-shaped horse leg bottom boxes 123 (the horse leg bottom boxes 123 can also be arranged into a truncated cone shape, a cylindrical shape or a prismatic structure), the horse leg bottom boxes 123 are arranged at two ends of the bottom die foundation 12 (the two ends are relatively, the distance between the two ends and the middle point in the horizontal direction is larger than the distance between the two ends), ma Tuikong which is consistent with the shape and the size of the horse leg bottom boxes 123 is formed at the bottom of a prefabricated square by arranging the horse leg bottom boxes 123, when a square is hoisted in a hanging rod manner of a hanging rod, the horse leg holes of the square can accommodate the bottom fixing structure of the hanging rod, the hanging rod is convenient to hoist after the hanging of the square is completed, and the hanging rod can be taken out from the square Ma Tuikong by rotating the hanging rod of the hanging rod; the horse leg bottom box 123 is also used for supporting a horse leg core mould which is installed subsequently, so that the horse leg core mould is fixed at the bottom or the top of the horse leg bottom box, and after the poured concrete is formed, a lifting hole which is consistent with the horse leg core mould in shape and size is formed in the prefabricated square block, so that the subsequent lifting of the square block is facilitated.
Referring to fig. 2 and 12, the first side 121 of the bottom mold base 12 is uniformly provided with a plurality of through holes 1210 (a plurality of through holes can be formed between the second side 122 of the bottom mold base 12 and the opposite surface of the second side 122 to enhance the anti-floating capability; wherein, the first side 121 is perpendicular to the second side 122), the diameter of the through holes 1210 is larger than that of the counter-pulling rod, when the first side mold 21 is mounted on the surface of the first side 121, the counter-pulling rod 6 can penetrate through the through holes 1210 to fix the bottom of the first side mold 21 and the bottom mold base 12 together to enhance the mounting stability of the first side mold 21, and when concrete is poured, the first side mold 21 is well fixed under the pulling force of the counter-pulling rod 6 at the bottom, thereby effectively preventing the first side mold 21 from floating.
Referring to fig. 1 and 13, a plurality of (not less than 22) top corner members 7 are pre-embedded in a cushion layer 11, the top of each top corner member 7 comprises a seamless steel pipe 700, the bottom of each seamless steel pipe is pre-embedded in the cushion layer 11, a steel plate 701 is arranged at the top of each seamless steel pipe, two channel steels 702 are symmetrically arranged at the top of each steel plate 701, top corner bolts 703 tightly propping a first side die 21 and a second side die 22 are arranged between the two channel steels, the top corner members 7 are uniformly arranged on the outer sides of each side of a bottom die foundation 12, the distance between each top corner member 7 and each side of the bottom die foundation 12 is 500-600 mm (the distance can be adjusted according to the designed distance in practical application), and a space installation square outer side template is conveniently reserved; through setting up apex angle component 7, when installing outside template, through the tight effect of top angle bolt 703 top, make the bottom of outside template tightly fixed together with die block basis 12, prevent that the outside template from overturning, strengthen the stability of template installation.
Referring to fig. 1 and 3, the side mold 2 includes a first side mold 21 and a second side mold 22, the first side mold 21 being disposed outside the first side 121 and the opposite side of the first side 121, respectively, and the second side mold 22 being disposed outside the second side 122 and the opposite side of the second side 122, respectively; the first side die 21 and the second side die 22 are rectangular steel templates, and the first side die 21 and the second side die 22 are connected through bolts. The grout stopping belts 23 are arranged at the joints of the first side die 21, the second side die 22 and the bottom die 1, the grout stopping belts 23 are arranged at the joints of the first side die 21 and the second side die 22, the grout stopping belts 23 can be triangular rubber grout stopping belts with right-angled triangles in cross section, the leakage stopping effect of the triangular rubber grout stopping belts is good, concrete grout can be prevented from penetrating into the joints of the templates, and the concrete pouring quality is improved; rubber plates are further arranged at joints of the first side die 21, the second side die 22 and the side faces of the bottom die foundation 12, so that concrete leakage is prevented.
The side die 2 comprises a panel 200, wherein the panel 200 is made of steel plates, the thickness of the panel 200 is 5-8 mm, a plurality of vertical ribs 201 are uniformly arranged on the outer side of the panel 200 along the length direction, and the vertical ribs 201 are made of flat steel; a plurality of transverse ribs 202 are uniformly arranged on the outer side of the vertical rib 201, the transverse ribs 202 are channel steel, the transverse ribs 202 are arranged along the width direction of the panel 200, and the transverse ribs 202 are perpendicular to the vertical rib 201; a plurality of back rods 203 are uniformly arranged on the outer sides of the transverse ribs 202, the back rods 203 are perpendicular to the transverse ribs 202, the back rods 203 are double-spliced channel steel, the distance between the back rods 203 is larger than the diameter of the counter pull rod 6, so that the counter pull rod 6 can pass through the back rods 203 to fix the templates; the height of the back rod 203 is larger than that of the panel 200, a plurality of rows of screw holes are formed in the back rod 203 along the height direction, so that bolts can conveniently penetrate through the screw holes, the back rod 203 is more firmly connected, a connecting rib 2030 is arranged between gaps of two channel steel at the top of the back rod 203, when the counter rod 6 is installed at the top of the side die 2, the connecting rib 2030 can provide a supporting point for the counter rod 6, the counter rod 6 is stably installed at the top of the side die 2, and the installation stability of the die plate is enhanced; the outer side of the back rod 203 is uniformly provided with a plurality of surrounding ribs 204, the surrounding ribs 204 are I-shaped steel, the surrounding ribs 204 are perpendicular to the back rod 203, a plurality of connecting plates 2040 are arranged on the surrounding ribs 204 at the bottom of the side die 2, and the connecting plates 2040 are used for enhancing the rigidity of the surrounding ribs 204 and enhancing the deformation resistance. The vertical ribs 201, the transverse ribs 202, the back rods 203 and the surrounding ribs 204 are used for supporting the panel 200, so that the deformation resistance of the panel 200 is enhanced, and the stability of the template can be enhanced and the concrete pouring quality can be improved through the supporting effect of the vertical ribs 201, the transverse ribs 202, the back rods 203 and the surrounding ribs 204 on the outer side of the panel 200 during concrete pouring. The left and right ends of the side die 2 are provided with lifting lugs 205, and when the side die 2 is installed or disassembled, the side die 2 can be lifted to the installation position through the lifting lugs 205, so that the installation and disassembly efficiency of the side die 2 is improved. The top of the first side mold 21 is further provided with two sets of mounting holes 210, the mounting holes 210 are provided at both ends of the first side mold 21, each set of mounting holes 210 includes two or more screw holes, and when the horse leg core mold is mounted, the horse leg core mold connecting rod member for fixing the horse leg core mold can be mounted at the top of the first side mold 21 through bolts and the mounting holes 210.
Referring to fig. 1 and 3, the top parts of the first side mold 21 and the second side mold 22 are provided with a construction platform 3, the construction platform 3 is arranged outside the first side mold 21 and the second side mold 22, and the construction platform 3 is supported at the top parts of the first side mold 21 and the second side mold 22 through a plurality of diagonal braces 4, so that the stability and the safety of the construction platform are enhanced; the diagonal bracing 4 adopts a square tube, one end of the diagonal bracing 4 is connected to the back rod 203 through a bolt, and the other end of the diagonal bracing 4 is connected to the construction platform 3 through a bolt; the construction platform 3 comprises a platform support 31 and a pedal 32, the lengths of the platform support 31 and the pedal 32 are adjusted according to the lengths of the first side die 21 and the second side die 22, the platform support 31 adopts square tubes, the platform support 31 is connected to the tops of the first side die 21 and the second side die 22 through bolts, and the platform support 31 is used for supporting the pedal 32, so that construction work is conveniently carried out on the construction platform 3 by constructors; the footboard 32 welds at the top of platform support 31, and footboard 32 adopts 3~6mm thick decorative pattern steel sheet, adopts decorative pattern steel sheet multiplicable steel sheet's skid resistance, and constructor can increase the security of construction when carrying out the operation on construction platform. The guardrail 5 is arranged on the outer side of the construction platform 3, so that the construction safety is improved; the guardrail 5 adopts square pipes, the skirting board 51 is arranged at the bottom of the guardrail 5, when constructors work on the construction platform 3, the skirting board 51 can ensure the safety of the constructors, and tools can be prevented from sliding out of the construction platform 3 from the skirting board, so that the construction safety is improved; the outside of guardrail 5 is provided with the fender cloth (not shown in the figure), and during concrete placement, the fender cloth can prevent that concrete from spilling outside construction platform 3, increases concrete placement's efficiency.
The construction platform 3 is further provided with a landing ladder 8 for constructors to go up and down the construction platform, the landing ladder 8 adopts square tubes, the top of the landing ladder 8 is hung on the outer side of the construction platform 3 through a hook 81, the bottom of the landing ladder 8 is arranged on a cushion layer 11, a base plate 82 is arranged at the contact position of the bottom of the landing ladder 8 and the cushion layer 11, the contact area of the square tubes at the bottom of the landing ladder 8 and the cushion layer 11 can be increased through the base plate 82, and the abrasion degree of the bottom of the landing ladder 8 is reduced. In the practical application process, the landing ladder 8 can be arranged at any one of the four corners of the construction platform, and the landing ladder 8 can also be arranged at the four corners of the construction platform, so that constructors can conveniently go up and down (refer to fig. 4).
FIG. 5 is a schematic diagram of another form of square bottom die, in which a movable mortice 124 with a trapezoid structure is provided at the top of the bottom die foundation 12, the movable mortice 124 is located between two leg bottom boxes 123, the height of the movable mortice 124 is 110-165 mm, the width of the upper bottom surface and the width of the lower bottom surface of the movable mortice 124 are consistent with the width of the bottom die foundation 12, the length of the upper bottom surface of the movable mortice 124 is smaller than the length of the lower bottom surface (the bottom surface of the movable mortice 124 in the gravity direction is the lower bottom surface, the other bottom surface is the upper bottom surface), and two vertical sides of the movable mortice 124 form a closed structure by providing steel plates, so that slurry is prevented from penetrating into the movable mortice 124 when pouring concrete, the die stripping efficiency is affected, and the appearance quality of the block after die stripping is affected; through setting up movable tongue-and-groove 124 for form the heavy groove corresponding with movable tongue-and-groove 124 size in the bottom of prefabricated square after the concrete solidifies, when carrying out the installation of square, install the square that is provided with the heavy groove on the boss of installed square, be convenient for the square installation location.
FIG. 6 is a schematic view of another first side mold, which is similar to the first side mold in FIG. 1, except that a flange 211 with a trapezoid structure is disposed on the top of the first side mold panel 200, the flange 211 is disposed between two sets of mounting holes 210, the thickness of the flange 211 is consistent with the thickness of the panel 200, and the height of the flange 211 is 100-145 mm; by arranging the flanges 211, after the first side dies 21 are installed on the outer side of the bottom die foundation 12, between the two opposite first side dies 21, flange templates 212 for connecting the two first side dies are respectively arranged between two inclined side faces of the flanges 211, as shown in fig. 7, the flange templates 212 are rectangular steel plates, the middle parts of the two flange templates are connected in a pulling mode, the connection stability of the flange templates is enhanced, and the side acting force of concrete is prevented from damaging the flange templates during concrete pouring.
Fig. 8 is a side view of another form of a second side mold, which is similar to the second side mold of fig. 1 in structure, except that the panel 200 is composed of a vertical portion 221 and a deflection portion 222, the bottom of the deflection portion 222 is connected with the top of the vertical portion 221, the deflection portion 222 forms an included angle of 30-45 degrees with the vertical portion 221, a plurality of support rods 223 are horizontally arranged between the panel 200 and the back rod 203 at the top of the deflection portion 222, the support rods 223 are channel steel, the support rods 223 are arranged along the length direction of the second side mold (refer to fig. 9), the stability of the connection of the mold can be enhanced by arranging the support rods 223, and the support rods 223 can also prevent the deflection portion 222 from deforming under the pressure of concrete when the concrete is poured. When the second side mold shown in fig. 8 is adopted, an oblique angle is formed at the top of the prefabricated square block after the poured concrete is formed, and when the prefabricated square block is installed under water, the oblique angle can slow down the action of water flow on the square block, so that the stability of the square block in underwater installation is improved. In the case of mounting the second side mold, the second side mold of fig. 8 may be mounted on the outer side of the second side surface 122 or the outer side of the opposite surface of the second side surface 122, or the second side mold of fig. 8 may be mounted on the outer side of the second side surface 122 or the outer side of the opposite surface of the second side surface 122.
Fig. 10 is a side view of an angle mold, wherein the angle mold consists of a vertical part and an inclined part, the vertical part is equal to the bottom mold foundation 12 in height, the bottom of the inclined part is connected with the top of the vertical part, the included angle between the inclined part and the vertical part is 30-45 degrees, and the width of the angle mold is consistent with the width of the bottom mold foundation 12; the outside of angle mould is provided with the angle mould and supports, and angle mould supports 91 is the triangle-shaped support frame (also accessible angle steel welding that forms by the channel-section steel welding), and angle mould supports 91 and is used for supporting the angle mould, improves the stability of template installation, and angle mould supports 91 can also improve the rigidity of angle mould, prevents that the angle mould warp under the pressure effect of concrete when concrete placement.
As shown in fig. 11, the corner mold 9 is disposed outside the second side surface 122 and inside the second side mold 22 (the corner mold 9 may be disposed outside the opposite surface of the second side surface 122 and outside the opposite surface of the second side surface 122), the vertical portion of the corner mold 9 is attached to the surface of the second side surface 122, and the top of the inclined portion of the corner mold 9 is in contact with the inner surface of the panel of the second side mold 22; by arranging the angle mould 9, an oblique angle can be formed at the bottom of the prefabricated square, and when the square is installed under water, the oblique angle can slow down the resistance of the water under the water, so that the stability of the square installed under water is improved.
The invention also provides a construction method of the square outside template system, which comprises the following steps:
step one: manufacturing a bottom die 1, a side die 2 and an angle die 9; the bottom die 1 comprises a cushion layer 11 and a bottom die foundation 12, when the bottom die 1 is manufactured, the side line of the rectangular cushion layer 11 is lofted according to the design size of the cushion layer 11, a template is supported at the position of the side line, concrete is poured on the inner side of the template, the concrete pouring height is changed according to the designed cushion layer 11, the cushion layer 11 is ensured to have certain supporting strength, and the bearing capacity of the bottom die 1 is enhanced; after the cushion layer 11 is poured, before initial setting of concrete, a plurality of vertex angle members 7 are pre-buried in the cushion layer 11, so that the vertex angle members 7 can support side dies installed later, stability of template installation is enhanced, and pre-buried positions of the vertex angle members 7 are determined according to designed positions.
After the cushion layer 11 is arranged, adopting angle steel or channel steel to manufacture the edge of the bottom die foundation 12, wherein the bottom die foundation 12 is of a rectangular structure, the notch of the angle steel or channel steel is arranged towards the inner side of the edge, after the edge is manufactured, reinforcing steel bars are arranged in the middle and at the bottom of the edge, a bottom die foundation framework is manufactured, the bearing capacity of the bottom die foundation 12 is enhanced, when the bottom die foundation framework is manufactured, a plurality of PVC pipes or steel pipes are bound at the bottom of the bottom die foundation framework, the PVC pipes or the steel pipes are arranged in parallel, the length of the PVC pipes or the steel pipes is greater than the width of the bottom die foundation framework, so that a through hole is formed at the bottom of the bottom die foundation 12 after the poured concrete is solidified, when a side die is installed at a later stage, the bottom of the side die can be fixed on the bottom die foundation 12 through the through hole, and the side die can be prevented from floating in the concrete pouring process under the action of pulling force of the pull rod 6, and the concrete pouring quality is improved; after the bottom die foundation framework is manufactured, placing the bottom die foundation framework on the top of the cushion layer 11, supporting templates along the surface of the bottom die foundation framework on the inner side of the vertex angle member 7, and pouring concrete after the templates are supported; when the concrete is initially set, the manufactured horse leg bottom box base is embedded into the top of the bottom die foundation 12, the embedded position of the horse leg bottom box base is determined according to the designed position, or the manufactured horse leg bottom box 123 part containing the horse leg bottom box base is embedded into the top of the bottom die foundation 12 in advance (the horse leg bottom box 123 can be manufactured at the top of the bottom die foundation 12 after the bottom die foundation 12 is arranged), and the template is removed after the concrete of the bottom die foundation 12 reaches the demolding strength.
After the template is removed, welding a steel plate on the top of a base of the horse leg bottom box, manufacturing a horse leg bottom box 123, after the horse leg bottom box 123 is manufactured, paving a steel plate with the thickness of 3-5 mm on the top of a bottom die foundation 12, and leveling the surface of the steel plate, so that the bottom of a prefabricated square is leveled, and positioning and mounting of the later square are facilitated; the steel plate laid can be conveniently demoulded, the prefabrication efficiency of the square is improved, the steel plate is welded with the edge, the middle part of the steel plate is connected with a connecting piece embedded in the bottom die foundation 12 through a bolt, and the stability of the steel plate is enhanced. When the leg bottom box 123 is provided, the leg bottom box 123 may be mounted on top of the steel plate after the steel plate is laid.
When the square block with the groove structure at the bottom is prefabricated, a movable mortise 124 is arranged at the top of the bottom die foundation 12 and between the two leg bottom boxes 123, the movable mortise 124 is of a trapezoid structure, and the width of the movable mortise 124 is consistent with that of the bottom die foundation 12.
And after the bottom die 1 is manufactured, manufacturing a side die 2 by adopting a steel panel and a section steel back edge. The side mold 2 includes a first side mold 21 and a second side mold 22, the heights of the first side mold 21 and the second side mold 22 are identical, and the length of the first side mold 21 is greater than the length of the second side mold 22. When the side die 2 is manufactured, a rectangular steel panel 200 with the thickness of 6-8 mm is adopted, flat steel frames are welded on the periphery of the steel panel, a plurality of vertical ribs 201 are arranged between the flat steel frames at the top opening and the bottom opening of the die plate, each vertical rib 201 is parallel, a plurality of transverse ribs 202 are vertically arranged on the outer sides of the vertical ribs 201, the transverse ribs 202 adopt channel steel, a plurality of back bars 203 are vertically arranged on the outer sides of the transverse ribs 202, the height of the back bars 203 is larger than that of the panel 200, the back bars 203 adopt double-spliced channel steel, connecting ribs 2030 are arranged between the two channel steel at the top of the back bars 203 and used for supporting opposite pull rods 6, a plurality of surrounding ribs 204 are vertically arranged on the outer sides of the back bars 203 after the back bars 203 are arranged, the surrounding ribs 204 adopt I-shaped steel, connecting plates 2040 are arranged between the surrounding ribs at the bottom, the rigidity of the I-shaped steel is enhanced, and the rigidity of the die plate is further enhanced. In order to facilitate the lifting of the side mold 2, lifting lugs 205 are provided on the middle or top transverse rib 202 of the panel 200, the side mold 2 can be quickly lifted to the installation position by the lifting lugs 205, the installation efficiency is improved, two groups of installation holes 210 are provided on the top rim of the first side mold when the first side mold 21 is manufactured, the two groups of installation holes 210 are positioned at the two ends of the top, each group of installation holes 210 is provided with two or more screw holes, bolts are penetrated in the installation holes 210, and the installation holes 210 are used for fixing the horse leg core mold when the horse leg core mold is installed.
When prefabricating a square block with a boss at the top, a flange 211 is arranged at the top opening of the first side die 21, the thickness of the flange 211 is consistent with that of the panel 200, the flange 211 is arranged between two groups of mounting holes 210, the flange 211 is of a trapezoid structure, and when the side die is mounted at the back, a flange template 212 is mounted on the inclined side face of the flange 211. When the square block with the oblique angle structure at the top is prefabricated, the panel 200 of the second side mold 22 is arranged in a mode of combining the vertical part 221 and the deflection part 222, the top of the vertical part 221 is connected with the bottom of the deflection part 222, the vertical part 221 and the deflection part 222 form an included angle of 30-45 degrees, and a supporting rod 223 is arranged between the top of the deflection part 222 and the back rod 203, so that the overall stability of the second side mold 22 is enhanced. When prefabricating square blocks with bevel structures at the bottoms, the corner mold 9 is further manufactured, the panel of the corner mold 9 is divided into a vertical part and a deflection part, the top of the vertical part is connected with the bottom of the deflection part, the vertical part forms an included angle of 30-45 degrees with the deflection part, for improving the strength of the corner mold 9, a right-angle triangle corner mold support 91 is arranged at the outer side of the panel, and the corner mold support 91 is welded into a right-angle triangle through channel steel or angle steel.
Step two: installing a side die 2 and an angle die 9; after the bottom die 1, the side die 2 and the corner die 9 are manufactured, the side die 2 and the corner die 9 are transported to the mounting positions by a conveyor and mounted in blocks. When the prefabricated bottom is a square block with a flat structure, a bottom die with no movable mortises is selected, and when the side dies are installed, the first side die 21 and the second side die 22 are lifted to the outer side of the bottom die foundation 12 by a crane, and are manually matched and installed. When the die is installed, the first side die 21 is installed on the outer side of the first side 121 and the outer side of the opposite surface of the first side 121 of the die block foundation 12, and the second side die 22 is installed on the outer side of the second side 122 and the outer side of the opposite surface of the second side 122; the joints of the first side die 21 and the second side die 22 are connected by bolts, and a grout stopping belt 23 is arranged at the joints of the first side die 21, the second side die 22 and the bottom die 1 to prevent concrete from leaking; after the templates are connected, the bottom of the first side die 21 is fixed by penetrating the counter pull rod 6 through the bottom through hole 1210, and in order to make the template connection more firm, counter pull bolts can be additionally arranged at the tops of the first side die 21 and the second side die 22, and the counter pull rod 6 is fixed by adopting bolts. After the first side mold 21 and the second side mold 22 are mounted, the tie bolts and the bolts connecting the first side mold 21 and the second side mold 22 are tightened to stably mount the form.
When prefabricating square blocks with bevel tops, the second side mold of FIG. 8 is used; when the square block with the bevel angle at the bottom is prefabricated, firstly, installing the angle mould 9 on the outer side of the second side surface 122 when installing the second side mould 22, and then enabling the second side mould 22 to be attached to the angle mould 9 for installation; when prefabricating square blocks with groove structures at the bottoms, selecting a bottom die with movable mortises; when prefabricating the square with the boss on the top, the flange templates 212 are installed between the two opposite first side dies 21 between the inclined sides of the flanges, the flange templates 212 are installed on the inclined sides 211 by bolts, and the flange templates 212 are connected in a pull-to-pull manner.
Step three: building a construction platform 3; the construction platform 3 is erected on the top of the first side die and the top of the second side die, when the construction platform 3 is erected, the platform support 31 is manufactured by adopting square pipes, and the pedal 32 is welded on the top of the platform support 31. When the construction platform 3 is erected, the bottom of the construction platform 3 is provided with the diagonal bracing 4, so that the stability of the construction platform is enhanced; when the construction platform 3 is erected, the guardrail 5 is arranged on the outer side of the construction platform 3, the skirting board 51 is arranged at the bottom of the guardrail 5, the guardrail is made of square tubes, and safety of constructors is guaranteed. After the construction platform is erected, a cat ladder is erected at any one corner of four corners of the construction platform, so that constructors can conveniently go up and down the construction platform.
Step four: installing a horse leg core mold; when the horse leg core mould is installed, the horse leg core mould is coaxially installed at the top or the bottom of the horse leg bottom box, and the top of the horse leg core mould is fixed at the top of the first side mould through the horse leg core mould connecting rod component. After the template is installed, sundries in the template are removed, the inner side of the template is polished smoothly, and a release agent is coated, so that the template is convenient to dismantle in a later period.
Step five: pouring concrete; when pouring, pouring in layers, and vibrating the concrete in the pouring process; during vibration, the quick-plugging and slow-pulling are performed, so that the compaction of vibration is ensured, and the concrete pouring quality is ensured; when vibrating, the vibrating rod is prevented from touching the side die, so that the side die is prevented from deforming.
Step six: curing the concrete; after the concrete pouring is completed, geotextile, plastic films or water spraying are covered on the surface of the concrete for maintenance, so that cracks on the surface of the concrete are prevented from being generated, and the appearance quality of prefabricated blocks is prevented from being influenced.
Step seven: removing the template; and after the concrete reaches the form removal strength, removing the form. When the mold is disassembled, the flange mold plate is disassembled firstly, then the horse leg core mold connecting rod component fixed at the top of the first side mold is disassembled, and then the horse leg core mold, the first side mold and the second side mold are disassembled; when the mold is removed, the mold plate is prevented from touching the surface of the square block, and the mold removing quality is prevented from being influenced.
The foregoing is a detailed description of specific embodiments of the invention and is not intended to be limiting of the invention. Various alternatives, modifications and improvements will readily occur to those skilled in the relevant art without departing from the spirit and scope of the invention.
Claims (7)
1. The construction method of the square outside template system is characterized by comprising the following steps of:
step one: manufacturing a bottom die, a first side die, a second side die and an angle die;
the die block includes bed course and die block basis, and the preparation die block includes: firstly, manufacturing a cushion layer, setting out side lines of the cushion layer according to the design size of the cushion layer, supporting a template at the side line position, pouring concrete at the inner side of the template, and pre-burying a plurality of vertex angle members in the cushion layer before initial setting of the concrete; the top corner members comprise seamless steel pipes, the bottoms of the seamless steel pipes are embedded into the cushion layers, steel plates are arranged at the tops of the seamless steel pipes, two channel steel is symmetrically arranged at the tops of the steel plates, top corner bolts are arranged between the two channel steel, the top corner members are uniformly arranged on the outer sides of all sides of the bottom die foundation, and installation spaces of square outer side templates are reserved between the top corner members and all sides of the bottom die foundation;
after the cushion layer is manufactured, a bottom die foundation is manufactured at the top of the cushion layer, and then two horse leg bottom boxes are arranged at the top of the bottom die foundation; when the bottom die foundation is manufactured, firstly adopting angle steel or channel steel to manufacture the binding of the bottom die foundation, arranging the notch of the angle steel or the channel steel towards the inner side of the binding, and then arranging reinforcing steel bars at the middle part and the bottom of the binding to manufacture a bottom die foundation framework; when the bottom die foundation framework is manufactured, binding PVC pipes or steel pipes at the bottom of the bottom die foundation framework, wherein the PVC pipes or steel pipes are arranged in parallel, so that through holes are formed at the bottom of the bottom die foundation after poured concrete is solidified, and a counter pull rod penetrates through the through holes to fix the bottom of the side die at the outer side of the bottom die foundation;
step two: installing a first side die, a second side die and an angle die;
step three: building a construction platform;
step four: installing a horse leg core mold;
when the horse leg core mould is installed, coaxially installing the horse leg core mould at the top or the bottom of the horse leg bottom box, and fixing the top of the horse leg core mould at the top of the first side mould through the horse leg core mould connecting rod component; the top of the first side die is also provided with two groups of mounting holes, the mounting holes are arranged at two ends of the first side die, and the horse leg core die connecting rod component is arranged at the top of the first side die through bolts and the mounting holes;
step five: pouring concrete; pouring concrete in a layered pouring mode, and vibrating the concrete in the pouring process;
step six: curing the concrete; covering geotextile, plastic film or sprinkling maintenance on the concrete surface after the concrete pouring is completed;
step seven: removing the template; and when the cast concrete reaches the form removal strength, removing the flange form, removing the horse leg core mold connecting rod component fixed at the top of the first side mold, and removing the horse leg core mold, the first side mold and the second side mold to avoid the form touching the surface of the square.
2. The method according to claim 1, wherein when prefabricating a square with a sink at the bottom, the first step is: a movable mortise is arranged between the two leg bottom boxes, the movable mortise is of a trapezoid structure, and the width of the movable mortise is consistent with the width of the bottom die foundation.
3. The method for constructing a square outside formwork system according to claim 1, wherein in the first step: when the first side die and the second side die are manufactured, a rectangular steel panel with the thickness of 6-8 mm is adopted as a template panel, a flat steel frame is welded around the panel, a plurality of vertical ribs, transverse ribs, back bars and surrounding ribs are sequentially arranged on the outer side of the panel, the heights of the first side die and the second side die are consistent, and the length of the first side die is larger than that of the second side die; when the first side die is manufactured, two groups of mounting holes are formed in the top of the first side die.
4. A method of constructing a form system for the outside of a square block according to claim 3, wherein when the square block having the boss on the top is prefabricated, the first step is: when the first side die is manufactured, a trapezoid flange is arranged between two groups of mounting holes at the top of the first side die, and the thickness of the flange is consistent with that of the panel; when the square block with the oblique angle at the top is prefabricated, in the first step, when the second side die is manufactured, the panel is spliced by the vertical part and the deflection part, the bottom of the deflection part is connected with the top of the vertical part, and a supporting rod is arranged between the top of the deflection part and the back rod.
5. The method for constructing a square outside formwork system according to claim 1, wherein in the first step: when the angle mould is manufactured, an angle mould support is arranged on the outer side of the panel, and when the angle mould support is arranged, a bracket with a triangular section is welded by adopting channel steel or angle steel.
6. The method for constructing a square outside formwork system according to claim 1, wherein the second step comprises: installing a first side die on the outer sides of the first side face and the first side face, installing a second side die on the outer sides of the second side face and the second side face, and arranging a slurry stopping belt at joints of the bottom die, the first side die and the second side die after the first side die and the second side die are installed; when a square block with an oblique angle at the bottom is prefabricated, installing a second side die, firstly installing the angle die on the second side surface and/or the outer side of the opposite surface of the second side surface, and then enabling the second side die to be attached to the angle die for installation; when prefabricating a square with a boss on top, a flange template is installed between the oblique sides of the first side mold flange.
7. The method for constructing a square outside formwork system according to claim 1, wherein in the third step: the construction platform comprises a platform support and a pedal, when the construction platform is erected, the pedal is welded at the top of the platform support, then the platform support is arranged at the top of the side mould, and a guardrail is arranged at the outer side of the platform support; when the construction platform is erected, inclined struts are arranged at the bottoms of the platform supports, and landing ladders are arranged at four corners of the construction platform.
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| CN103722613A (en) * | 2013-12-20 | 2014-04-16 | 浙江省第一水电建设集团股份有限公司 | Construction method for vertically casting and mounting four-foot hollow block in seawall wave resistance engineering |
| JP2016102377A (en) * | 2014-11-28 | 2016-06-02 | りんかい日産建設株式会社 | Insulating molded body for concrete form and concrete construction method |
| CN109629509A (en) * | 2018-12-18 | 2019-04-16 | 中交第航务工程局有限公司 | A kind of gravity type concrete block quay wall relieving slab mounting process |
| CN109808054A (en) * | 2019-01-31 | 2019-05-28 | 中铁四局集团第二工程有限公司 | Linear PC track beam prefabricating construction method |
| CN211369536U (en) * | 2019-11-09 | 2020-08-28 | 北京市市政二建设工程有限责任公司 | Cast-in-place box girder template system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103722613A (en) * | 2013-12-20 | 2014-04-16 | 浙江省第一水电建设集团股份有限公司 | Construction method for vertically casting and mounting four-foot hollow block in seawall wave resistance engineering |
| JP2016102377A (en) * | 2014-11-28 | 2016-06-02 | りんかい日産建設株式会社 | Insulating molded body for concrete form and concrete construction method |
| CN109629509A (en) * | 2018-12-18 | 2019-04-16 | 中交第航务工程局有限公司 | A kind of gravity type concrete block quay wall relieving slab mounting process |
| CN109808054A (en) * | 2019-01-31 | 2019-05-28 | 中铁四局集团第二工程有限公司 | Linear PC track beam prefabricating construction method |
| CN211369536U (en) * | 2019-11-09 | 2020-08-28 | 北京市市政二建设工程有限责任公司 | Cast-in-place box girder template system |
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