CN114411809B - Construction method for partial haunched special-shaped basement roof - Google Patents
Construction method for partial haunched special-shaped basement roof Download PDFInfo
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- CN114411809B CN114411809B CN202210143125.4A CN202210143125A CN114411809B CN 114411809 B CN114411809 B CN 114411809B CN 202210143125 A CN202210143125 A CN 202210143125A CN 114411809 B CN114411809 B CN 114411809B
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- 238000010276 construction Methods 0.000 title claims abstract description 33
- 230000002787 reinforcement Effects 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims description 22
- 230000003014 reinforcing effect Effects 0.000 claims description 17
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000003908 quality control method Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 31
- 239000010959 steel Substances 0.000 description 31
- 238000005096 rolling process Methods 0.000 description 28
- 238000009434 installation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/0007—Base structures; Cellars
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/18—Spacers of metal or substantially of metal
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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
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/40—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for coffered or ribbed ceilings
- E04G11/46—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for coffered or ribbed ceilings of hat-like or trough-like shape encasing a rib or the section between two ribs or encasing one rib and its adjacent flat floor or ceiling section
-
- 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
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
-
- 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
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
- E04G11/50—Girders, beams, or the like as supporting members for forms
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to a construction method of a top plate of a special-shaped basement with local haunching, which comprises the following steps: s000, preparing construction; s100, erecting a lower bracket; s200, erecting an upper bracket; s300, erecting a beam slab template; s400, controlling the arching of the template; s500, binding an armpit plate reinforcement cage; s600, beam slab concrete pouring. The invention can improve the construction efficiency, improve the construction quality of the top plate and reduce the quality control difficulty.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a construction method of a top plate of a special-shaped basement with local haunching.
Background
In the construction of high-rise buildings, a basement is provided in most of the projects to expand the building space and the like. The basement roof is used as an important bearing structure of the basement, and during construction, the basement roof generally comprises the procedures of formwork support, reinforcement cage binding, concrete pouring and the like, and the problems of formwork positioning and reinforcement cage binding at the haunching part are also required to be enhanced for the haunched special-shaped basement bottom plate.
There is a basement roof mounting structure among the prior art, including first fixed plate and second fixed plate, the bottom side of first fixed plate and second fixed plate is fixed mounting respectively has two stopper and a stopper, and two spacing grooves have all been seted up to the bottom side of three stopper, and the bottom side fixed mounting of first fixed plate has two U-shaped frames, is located the stopper slidable mounting on the second fixed plate in one of them U-shaped frame. Although the technology can meet the requirements of pouring and installing basement top plates with different sizes, the technology is difficult to solve the problems of reduced installation and positioning precision of the haunching templates, improved support bearing performance, improved installation precision of the reinforcement cage and the like.
In view of this, in order to improve the construction quality of basement roof construction and reduce the construction difficulty, a local haunched special-shaped basement roof construction method capable of reducing the installation positioning precision of the haunched templates, improving the bearing performance of the bracket and improving the installation precision of the reinforcement cage is needed at present.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a construction method for a top plate of a special-shaped basement with local haunching.
In order to achieve the above object, the present invention adopts the following technical scheme: the construction method of the top plate of the special-shaped basement with the local armpit comprises the following steps:
S000, preparation of construction: pouring a basement bottom plate, determining structures of a first beam mold, a second beam mold and an armpit mold, and preparing materials and devices required by construction;
s100, erecting a lower bracket: the upper surface of the basement bottom plate is sequentially provided with a supporting bottom plate and supporting columns, and a column bottom supporting plate at the bottom end of each supporting column is connected with the supporting bottom plate through a positioning bolt;
The arch-shaped connecting beam is connected with the supporting upright post through the supporting column hoop;
A column top cross beam and a support longitudinal beam are sequentially arranged at the top end of the support column;
a beam top support body is arranged between the column top cross beam and the arched connecting beam;
S200, erecting an upper bracket: uniformly distributing template bracing beams at intervals along the longitudinal direction of the supporting longitudinal beam, and connecting a column bottom sleeve on the upper surface of the template bracing beam with a platform bracing column;
An inclined position control bolt is arranged between the platform supporting column and the template supporting beam, and an inclined support bottom plate at the bottom end of the inclined position control bolt is connected with the template supporting beam through a bottom plate anchor bar;
The two ends of the sliding falcon chute on the template supporting beam are respectively provided with a counter-force supporting plate, the two counter-force supporting plates are respectively provided with a first positioning bolt and a second positioning bolt, the other end of the first positioning bolt is connected with the template reinforcing rib, and the other end of the second positioning bolt is connected with the second sliding falcon;
A platform transverse plate is arranged at the top end of the platform supporting column, a first supporting pier and a second supporting pier are arranged on the platform transverse plate, a first positioning bolt and a second positioning bolt are arranged on the first supporting pier, and a third positioning bolt and a fourth positioning bolt are arranged on the second supporting pier;
reinforcing supporting plates are arranged on the upper surfaces of the first positioning bolt, the second positioning bolt, the third positioning bolt and the fourth positioning bolt;
S300, erecting a beam slab template: setting a plate bottom control position body on the haunching template;
The first beam die and the second beam die are respectively and firmly connected with the haunching die plate, then the first sliding falcon on the lower surface of the first beam die and the second sliding falcon on the bottom end of the second beam die are respectively connected with the sliding falcon chute, and a closed bag is arranged at the joint of the second sliding falcon and the second beam die;
S400, controlling the arching of the template: a supporting base plate and an arch-forming supporting plate are sequentially arranged between the large-span plate die and the platform transverse plate, and a supporting pressure is applied to the arch-forming supporting plate through a supporting plate supporting pressing bolt, so that the arch-forming height of the large-span plate die is synchronously controlled;
S500, binding an axillary plate reinforcement cage: binding beam longitudinal bars and beam stirrups, then arranging axillary plate transverse bars and stirrup connectors, enabling stirrup clamping plates of the stirrup connectors to be vertically welded with positioning supporting plates, and welding longitudinal bar positioning bolts on the positioning supporting plates;
the two sides of the beam stirrup are respectively provided with stirrup clamping plates, and the stirrup clamping plates are firmly connected with the beam stirrup through clamping plate fastening bolts;
the length of the longitudinal rib positioning bolts at the two sides of the positioning supporting plate is adjusted, the positions of the longitudinal ribs of the armpit plates are limited through the limiting groove plates, and then the longitudinal ribs of the armpit plates are firmly connected with the transverse ribs of the armpit plates;
s600, beam slab concrete pouring: firstly, applying a jacking force to a supporting bag and a transverse rib pressing plate through a bag communicating pipe, and controlling the positions of the transverse ribs of the armpit plate and the longitudinal ribs of the armpit plate;
pouring the beam slab concrete;
when the beam slab concrete is poured to the height of the slab bottom control position, the top pressure of the supporting bag to the transverse rib pressing plate is relieved, and then the subsequent beam slab concrete pouring construction is carried out.
Further, in step S100, the verticality and the elevation of the top surface of the support upright post are adjusted by the positioning bolts, and then an upright post diagonal bracing is arranged between the support upright post and the basement bottom plate.
Further, in step S300, the inclination angles of the reinforcing brace plate and the haunched template are adjusted by the first positioning bolt, the second positioning bolt, the third positioning bolt and the fourth positioning bolt, and then the first positioning bolt and the second positioning bolt are adopted to apply positioning pressure to the first beam mold and the second beam mold respectively.
Further, in step S400, the relative position between the support pads is controlled by pad limiting pins.
Further, in step S600, after the beam slab concrete forms strength, pressure is applied to the supporting bag through the bag communicating pipe, the haunching template and the beam slab concrete are pressurized, the haunching template is separated from the beam slab concrete, and then the height of the supporting upright post is adjusted by adopting the positioning bolt, so that the synchronous falling of the first beam mold, the second beam mold, the haunching template and the large-span slab mold is realized, and the construction is completed.
Further, in step S300, the first positioning bolt, the second positioning bolt, the third positioning bolt and the fourth positioning bolt all include screws and nuts, and the fastening directions of the screws on two sides of the nuts are opposite, the first positioning bolt and the third positioning bolt are arranged in a vertical direction, and the second positioning bolt and the fourth positioning bolt are arranged along a horizontal direction to face the reinforcing brace plate.
Further, in step S300, the plate bottom control position body includes a bag control position groove, a support bag and a transverse rib pressing plate, and the support bag is embedded into the bag control position groove; the bottom end of the supporting bag is in adhesive connection with the bag position control groove, and the top end of the supporting bag is in adhesive connection with the transverse rib pressing plate and is communicated with the bag communicating pipe; the airtight bag is sewn into an airtight cavity by adopting a geomembrane or a rubber sheet, and water or air is filled in the airtight bag.
Further, in step S400, the curvature of the upper surface of the arching supporting plate is the same as the curvature of the arching supporting plate of the large-span plate die, and the lower surface is provided with a plate bottom sliding falcon connected with the plate top sliding groove.
Further, in step S400, a plate top sliding groove and a connecting supporting plate are provided on the upper surface of the supporting base plate, and a plate bottom sliding falcon is provided on the lower surface; the cross sections of the plate bottom sliding falcon and the plate top sliding groove are isosceles trapezoids; screw holes connected with the supporting plate jacking bolts are preset on the connecting supporting plates.
Further, in step S500, holes through which the clamp plate fastening bolts pass are preset on the stirrup clamp plates, and stirrup connecting grooves connected with the beam stirrups are preset on the stirrup clamp plates; the longitudinal rib positioning bolts comprise screws and nuts, and enable the fastening directions of the screws on two sides of the nuts to be opposite, and are welded and connected with the limiting groove plates; the cross section of the limiting groove plate is arc-shaped, the inner diameter is the same as the outer diameter of the longitudinal ribs of the armpit plate, and the central angle is 90-180 degrees.
Working principle and beneficial effect: 1. according to the invention, the column bottom supporting plate at the bottom end of the supporting column is connected with the supporting bottom plate through the positioning bolts, and the arched connecting beam is arranged between the two supporting columns opposite to each other in a mirror image manner, so that the verticality and the top elevation of the supporting column can be adjusted through the positioning bolts, and the erecting efficiency of the lower support is improved;
2. The template supporting beam and the platform supporting column are connected through the column bottom sleeve, the sliding falcon sliding groove and the counter-force supporting plate are arranged on the upper surface of the template supporting beam, the first beam die and the second beam die can move along the sliding falcon sliding groove under the action of the first positioning bolt and the second positioning bolt, the connection tightness of the first beam die and the second beam die can be improved by means of the airtight bag on the second sliding falcon, and the supporting difficulty of the first beam die and the second beam die is reduced;
3. According to the invention, the first positioning bolt and the second positioning bolt are arranged on the first support pier, and the third positioning bolt and the fourth positioning bolt are arranged on the second support pier, so that the position of the reinforcing support plate can be accurately controlled;
4. The plate bottom control position body is arranged on the haunching template, and the position of the transverse rib pressing plate is controlled through the supporting bag, so that the requirements of the position control of the transverse rib of the haunching plate and the static demoulding of the haunching template can be synchronously met;
5. According to the invention, the supporting base plate and the arch-forming supporting plate are sequentially arranged between the large-span plate die and the platform transverse plate, and the supporting plate is propped by the supporting plate propping bolt to apply the propping force to the arch-forming supporting plate, so that the accurate control of the arch-forming height of the large-span plate die is realized;
6. The invention firstly carries out binding connection between the beam longitudinal bars and the beam stirrups, and then sets the stirrup clamping plates connected with the beam stirrups, and the positions of the longitudinal bars of the armpit plates are limited by the longitudinal bar positioning bolts on the positioning supporting plates, so that the accurate positioning of the longitudinal bars of the armpit plates is realized;
7. The invention applies the jacking force to the supporting bag and the transverse rib pressing plate through the bag communicating pipe, thereby reducing the difficulty of controlling the positions of the transverse ribs of the armpit plate and the longitudinal ribs of the armpit plate; meanwhile, the jacking force applied to the beam slab concrete by the supporting bag and the transverse rib pressing plate can be adjusted by the positioning bolts, so that static demolding is realized.
Drawings
FIG. 1 is a construction flow diagram of a partial haunched profiled basement roof of the present invention;
FIG. 2 is a schematic view of a construction structure of a top plate of a partially haunched special-shaped basement;
FIG. 3 is a schematic view of the structure of the plate bottom control bit;
FIG. 4 is a schematic view of the structure of the hooping connection body to the beam hooping;
FIG. 5 is a schematic longitudinal section of a large span slab mold arching structure;
FIG. 6 is a schematic cross-sectional view of the large span plate mold arching structure of FIG. 5;
FIG. 7 is an enlarged partial view of FIG. 2;
fig. 8 is a partial enlarged view of fig. 2.
In the figure, 1, a basement bottom plate; 2. a first beam mold; 3. a second beam mold; 4. a haunching template; 5. a support base plate; 6. a support column; 7. a column bottom support plate; 8. a positioning bolt; 9. an arched connecting beam; 10. a strut hoop; 11. upright post diagonal bracing; 12. a column top cross beam; 13. supporting the longitudinal beam; 14. a roof beam support; 15. a template bracing beam; 16. a column bottom sleeve; 17. a platform strut; 18. oblique position control bolt; 19. a diagonal bracing bottom plate; 20. a bottom plate anchor bar; 21. slide falcon chute; 22. a reaction force supporting plate; 23. a first positioning bolt; 24. a second positioning bolt; 25. a template reinforcing rib; 26. a platform cross plate; 27. a first buttress; 28. a second buttress; 29. a first positioning bolt; 30. a second positioning bolt; 31. a third positioning bolt; 32. a fourth locating pin; 33. reinforcing supporting plates; 34. a plate bottom control body; 35. a first slide falcon; 36. a second slide falcon; 37. sealing the bag; 38. a large-span plate die; 39. a support backing plate; 40. arching supporting plates; 41. the supporting plate pushes the bolt; 42. stirrup connecting groove; 43. beam longitudinal ribs; 44. beam stirrups; 45. axillary plate transverse ribs; 46. a stirrup connector; 47. positioning a supporting plate; 48. longitudinal rib positioning bolts; 49. stirrup clamping plates; 50. a clamp plate fastening bolt; 51. limiting groove plates; 52. axillary plate longitudinal ribs; 53. a bag communicating pipe; 54. supporting the pouch; 55. a transverse rib pressing plate; 56. beam slab concrete; 57. a pouch control slot; 58. a board top chute; 59. a plate bottom sliding falcon; 60. and connecting the supporting plates.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the invention.
In the case of example 1,
As shown in fig. 1 and 2, the construction method of the local haunched special-shaped basement roof comprises the following steps:
s000, preparation of construction: pouring a basement bottom plate 1, determining the structures of a first beam mold 2, a second beam mold 3 and a haunching template 4, and preparing materials and devices required by construction;
S100, erecting a lower bracket:
s110, sequentially arranging a support bottom plate 5 and a support upright post 6 on the upper surface of the basement bottom plate 1, and connecting a post bottom supporting plate 7 at the bottom end of the support upright post 6 with the support bottom plate 5 through a positioning bolt 8;
S120, connecting the arched connecting beam 9 with the supporting upright post 6 through the supporting column hoop 10;
S130, adjusting the verticality and the top elevation of the support upright post 6 through the positioning bolt 8, and arranging an upright post diagonal bracing 11 between the support upright post 6 and the basement bottom plate 1;
S140, sequentially arranging a column top cross beam 12 and a support longitudinal beam 13 at the top end of the support column 6;
s150, arranging a beam top support body 14 between the column top cross beam 12 and the arched connecting beam 9;
S200, erecting an upper bracket:
S210, uniformly distributing template supporting beams 15 at intervals along the longitudinal direction of the supporting longitudinal beam 13, and connecting column bottom sleeves 16 on the upper surface of the template supporting beams 15 with platform supporting columns 17;
S220, an oblique position control bolt 18 is arranged between the platform supporting column 17 and the template supporting beam 15, and an inclined support bottom plate 19 at the bottom end of the oblique position control bolt 18 is connected with the template supporting beam 15 through a bottom plate anchor bar 20;
S230, arranging reaction supporting plates 22 at two ends of a sliding tongue chute 21 on a template supporting beam 15, arranging a first positioning bolt 23 and a second positioning bolt 24 on the two reaction supporting plates 22 respectively, enabling the other end of the first positioning bolt 23 to be connected with a template reinforcing rib 25 and enabling the other end of the second positioning bolt 24 to be connected with a second sliding tongue 36;
S240, arranging a platform transverse plate 26 at the top end of the platform supporting column 17, arranging a first supporting pier 27 and a second supporting pier 28 on the platform transverse plate 26, arranging a first positioning bolt 29 and a second positioning bolt 30 on the first supporting pier 27, and arranging a third positioning bolt 31 and a fourth positioning bolt 32 on the second supporting pier 28;
S250, arranging reinforcing support plates 33 on the upper surfaces of the first positioning bolt 29, the second positioning bolt 30, the third positioning bolt 31 and the fourth positioning bolt 32;
S300, erecting a beam slab template:
S310, setting a plate bottom control position body 34 on the haunching template 4;
Wherein, as shown in fig. 3, the plate bottom control position body 34 comprises a bag control position groove 57, a supporting bag 54 and a transverse rib pressing plate 55, and the supporting bag 54 is embedded into the bag control position groove 57;
wherein, the bottom end of the supporting bag 54 is in adhesive connection with the bag position control groove 57, and the top end is in adhesive connection with the transverse rib pressing plate 55 and is communicated with the bag communicating pipe 53;
Wherein, the airtight bag 37 is sewn into an airtight cavity by adopting a geomembrane or a rubber sheet, and the airtight bag 37 is filled with water or air;
s320, enabling the first beam die 2 and the second beam die 3 to be firmly connected with the haunched die plate 4 respectively, enabling a first sliding falcon 35 on the lower surface of the first beam die 2 and a second sliding falcon 36 on the bottom end of the second beam die 3 to be connected with the sliding falcon chute 21 respectively, and arranging a closed bag 37 at the joint of the second sliding falcon 36 and the second beam die 3;
Wherein, the first beam mould 2 and the second beam mould 3 can move along the sliding tenon chute 21 under the action of the first positioning bolt 23 and the second positioning bolt 24;
s330, adjusting the inclination angles of the reinforcing supporting plate 33 and the haunched template 4 through the first positioning bolt 29, the second positioning bolt 30, the third positioning bolt 31 and the fourth positioning bolt 32, and then applying positioning pressure to the first beam mold 2 and the second beam mold 3 by adopting the first positioning bolt 23 and the second positioning bolt 24 respectively;
Wherein, the first positioning bolt 29, the second positioning bolt 30, the third positioning bolt 31 and the fourth positioning bolt 32 comprise screw rods and nuts, the fastening directions of the screw rods at two sides of the nuts are opposite, the first positioning bolt 29 and the third positioning bolt 31 are distributed in a vertical direction, and the second positioning bolt 30 and the fourth positioning bolt 32 are distributed along a horizontal direction facing the reinforcing supporting plate 33;
S400, controlling the arching of the template: as shown in fig. 5 and 6, a support cushion 39 and an arch support 40 are provided in this order between the large-span plate mold 38 and the platform cross plate 26, and a support pressure is applied to the arch support 40 by a support plate support pressure bolt 41, so that the arch height of the large-span plate mold 38 is synchronously controlled;
wherein the curvature of the upper surface of the arching supporting plate 40 is the same as that of the arching supporting plate of the large-span plate die 38, and the lower surface is provided with a plate bottom sliding falcon 59 connected with a plate top sliding groove 58;
wherein, the upper surface of the supporting backing plate 39 is provided with a plate top sliding chute 58 and a connecting supporting plate 60, and the lower surface is provided with a plate bottom sliding falcon 59;
wherein, the cross sections of the plate bottom sliding falcon 59 and the plate top sliding groove 58 are isosceles trapezoids; screw holes connected with the supporting plate jacking bolts 41 are preset on the connecting supporting plate 60;
s410, controlling the relative positions of the supporting base plates 39 through base plate limiting falcons;
S500, binding an axillary plate reinforcement cage:
S510, binding beam longitudinal ribs 43 and beam stirrups 44, laying armpit plate transverse ribs 45 and stirrup connectors 46, enabling stirrup clamping plates 49 of the stirrup connectors 46 to be vertically welded with positioning support plates 47, and welding longitudinal rib positioning bolts 48 on the positioning support plates 47;
s520, respectively arranging stirrup clamping plates 49 on two sides of the beam stirrup 44, and firmly connecting the stirrup clamping plates 49 with the beam stirrup 44 through clamping plate fastening bolts 50;
S530, adjusting the lengths of longitudinal rib positioning bolts 48 on two sides of a positioning supporting plate 47, limiting the positions of longitudinal ribs 52 of the armpit plates through limiting groove plates 51, and then firmly connecting the longitudinal ribs 52 of the armpit plates with transverse ribs 45 of the armpit plates;
as shown in fig. 4, holes for the clamp fastening bolts 50 to pass through are preset on the stirrup clamp 49, and stirrup connecting grooves 42 connected with the beam stirrups 44 are preset on the stirrup clamp 49;
The longitudinal rib positioning bolts 48 comprise screws and nuts, and enable the fastening directions of the screws on two sides of the nuts to be opposite, and are welded and connected with the limiting groove plates 51;
wherein the cross section of the limiting groove plate 51 is arc-shaped, the inner diameter is the same as the outer diameter of the longitudinal ribs 52 of the armpit plate, and the central angle is 90-180 degrees;
s600, beam slab concrete pouring: firstly, applying a pressing force to the supporting bag 54 and the transverse rib pressing plate 55 through the bag communicating pipe 53, and controlling the positions of the armpit plate transverse ribs 45 and the armpit plate longitudinal ribs 52;
S610, pouring the beam slab concrete 56;
s620, when the beam slab concrete 56 is poured to the elevation of the slab bottom control position body 34, releasing the jacking force of the supporting bag 54 on the transverse rib pressing plate 55, and then carrying out subsequent beam slab concrete 56 pouring construction;
S630, after the beam slab concrete 56 is formed into strength, pressure is applied to the supporting bag 54 through the bag communicating pipe 53, the haunching template 4 and the beam slab concrete 56 are pressurized, the haunching template 4 is separated from the beam slab concrete 56, then the height of the supporting upright post 6 is adjusted by adopting the positioning bolt 8, so that the first beam mold 2, the second beam mold 3, the haunching template 4 and the large-span slab mold 38 synchronously fall, and construction is completed.
In the case of example 2,
In order to further facilitate the understanding of the present invention by those skilled in the art, the following exemplary explanation is given for each of the names appearing in example 1:
As shown in fig. 1-8, the basement bottom plate 1 is 30cm thick and is formed by casting concrete with the strength grade of C30;
the first beam mold 2 and the second beam mold 3 are steel templates with the thickness of 3 mm;
The haunching template 4 is formed by rolling a steel template with the thickness of 3 mm;
the supporting bottom plate 5 is formed by rolling a steel plate with the thickness of 10mm, and the diameter is 60cm;
The support upright 6 is formed by rolling H-shaped steel with the specification of 200 multiplied by 8 multiplied by 12;
the column bottom support plate 7 is formed by rolling a steel plate with the thickness of 10mm, the diameter is 60cm, and screw holes connected with the positioning bolts 8 are preset on the column bottom support plate 7; the positioning bolt 8 is formed by rolling a screw rod with the inner diameter of 60 mm;
The arched connecting beam 9 is formed by rolling a steel plate with the thickness of 20mm, the width of 20cm and the longitudinal section of the arched connecting beam is arc-shaped;
the strut hoop 10 comprises two rectangular steel plates which are enclosed to be closed, and is formed by rolling steel plates with the thickness of 3 mm;
The upright post diagonal bracing 11 is formed by adopting a screw rod with the diameter of 100mm and a bolt, and is welded and connected with the supporting upright post 6;
the column top cross beam 12 is formed by rolling H-shaped steel with the specification of 200 multiplied by 8 multiplied by 12;
The support longitudinal beam 13 is formed by rolling H-shaped steel with the specification of 100 multiplied by 6 multiplied by 8;
the beam top support body 14 is formed by rolling a rubber plate with the thickness of 20mm;
The template bracing beam 15 is formed by rolling a steel plate with the thickness of 10mm, the width is 30cm, the height is 10cm, a sliding tenon chute 21 with a T-shaped cross section is arranged on the upper surface, the width of the sliding tenon chute 21 is 28cm, the height is 8cm, and the notch width is 15cm;
the column bottom sleeve 16 adopts the strength grade Q345D, and the inner diameter is 100mm;
the platform stay 17 is formed by rolling a steel pipe with the diameter of 100 mm;
the oblique position control bolt 18 comprises a screw rod with the diameter of 60mm and a nut;
the diagonal bracing bottom plate 19 is formed by rolling a steel plate with the thickness of 3 mm;
The bottom plate anchor bars 20 adopt screw rods with the diameter of 30 mm;
The reaction supporting plate 22 is formed by cutting a steel plate with the thickness of 10mm, the width of the reaction supporting plate is 20cm, and the height of the reaction supporting plate is 30cm;
the first positioning bolt 23 and the second positioning bolt 24 are formed by combining screws and bolts with the diameters of 60mm, and the fastening directions of the screws at the two sides of the bolts are opposite;
The template reinforcing rib 25 is formed by rolling a steel sheet with the thickness of 10mm, the width is 20cm, and the cross section is L-shaped;
the platform transverse plate 26 is formed by rolling a steel plate with the thickness of 6mm, and the width is 30cm;
The first support pier 27 and the second support pier 28 are formed by rolling steel plates with the thickness of 10mm, and the cross section size is 20cm multiplied by 20cm;
the first positioning bolt 29, the second positioning bolt 30, the third positioning bolt 31 and the fourth positioning bolt 32 comprise screws and nuts with diameters of 30mm, and the fastening directions of the screws at the two sides of the nuts are opposite; the first positioning bolt 29 and the third positioning bolt 31 are arranged in a vertical direction; the second positioning bolt 30 and the fourth positioning bolt 32 are horizontally arranged;
The reinforcing brace plate 33 is formed by rolling a steel plate with the thickness of 10mm, and the width is 20cm;
The plate bottom control position body 34 comprises a bag control position groove 57, a supporting bag 54 and a transverse rib pressing plate 55, and the supporting bag 54 is embedded into the bag control position groove 57; the supporting bag 54 is sewn into a closed cavity by adopting a rubber sheet with the thickness of 2mm, the bottom end is stuck with the bag position control groove 57, and the top end is stuck and connected with the transverse rib pressing plate 55 and is communicated with the bag communicating pipe 53; the transverse rib pressing plate 55 is formed by rolling a steel plate with the thickness of 3 mm; the diameter of the bag position control groove 57 is 10cm, and the bag position control groove is formed by rolling a steel plate with the diameter of 5 mm; the bag communicating pipe 53 adopts a steel pipe with the diameter of 30 mm;
the first slide falcon 35 and the second slide falcon 36 are formed by rolling steel plates with the thickness of 10mm, the cross section is in an inverted T shape, and the bottom width is 25cm;
The airtight bag 37 is sewn into an airtight cavity by adopting a rubber sheet with the thickness of 2mm, and the airtight bag 37 is filled with water;
the large-span plate die 38 is formed by rolling a steel plate with the thickness of 3 mm;
the arching supporting plate 40 is formed by rolling a steel plate with the thickness of 10mm, the curvature of the upper surface is the same as that of the arching of the large-span plate die 38, and a plate bottom sliding falcon 59 connected with a plate top sliding groove 58 is arranged on the lower surface; the cross sections of the plate top sliding groove 58 and the plate bottom sliding tongue 59 are isosceles trapezoids and are similar in shape, and the top width of the plate top sliding groove 58 is 30cm and the bottom width is 50cm;
The supporting base plate 39 is formed by rolling a steel plate, a plate top sliding groove 58 and a connecting supporting plate 60 are arranged on the upper surface, and a plate bottom sliding falcon 59 is arranged on the lower surface; the connecting supporting plate 60 is formed by rolling a steel plate with the thickness of 10mm, the width is 30cm, the connecting supporting plate 60 is vertically welded with the supporting base plate 39, and screw holes connected with the supporting plate jacking bolts 41 are preset on the connecting supporting plate 60;
the supporting plate jacking bolt 41 is formed by rolling a high-strength screw rod with the diameter of 30 mm;
the depth of the stirrup connecting groove 42 is 3mm, and the diameter is 10mm;
the beam longitudinal bars 43 are threaded ribbed bars with the diameter of 25 mm;
the beam stirrup 44 is a threaded ribbed bar with a diameter of 10mm;
the transverse ribs 45 of the armpit plates are threaded steel bars with the diameter of 10mm;
The stirrup link 46 includes a stirrup clamping plate 49 and a clamping plate securing pin 50;
The positioning supporting plate 47 is formed by rolling a steel plate with the thickness of 10mm, and the width is 10cm;
The longitudinal rib positioning bolts 48 comprise screws with the diameter of 30mm and nuts, and the fastening directions of the screws on the two sides of the nuts are opposite, and are welded and connected with the limiting groove plates 51;
The stirrup clamping plate 49 is formed by rolling a steel plate with the thickness of 10mm, the transverse section is rectangular, the width is 10cm, the length is 30cm, holes for the clamping plate fastening bolts 50 to pass through are preset on the stirrup clamping plate 49, and stirrup connecting grooves 42 connected with the beam stirrups 44 are preset on the stirrup clamping plate 49;
the clamping plate fastening bolt 50 adopts a high-strength bolt with the length of 20 mm;
The limit groove plate 51 is formed by rolling a steel plate with the thickness of 2mm, the cross section is in a circular arc shape, the inner diameter is the same as the outer diameter of the longitudinal ribs 52 of the armpit plate, and the central angle is 90 degrees;
the longitudinal ribs 52 of the armpit plates are threaded steel bars with the diameter of 25 mm;
Beam slab concrete 56 is of a concrete grade C35.
The invention is not described in detail in the prior art, and therefore, the invention is not described in detail.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
Although specific terms are used more herein, the use of other terms is not precluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
The present application is not limited to the above-mentioned preferred embodiments, and any person can obtain various other products without departing from the scope of the present application, but any changes in shape or structure of the present application are within the scope of the present application.
Claims (7)
1. The construction method of the partial haunched special-shaped basement roof is characterized by comprising the following steps of:
S000, preparation of construction: pouring a basement bottom plate, determining structures of a first beam mold, a second beam mold and an armpit mold, and preparing materials and devices required by construction;
s100, erecting a lower bracket: the upper surface of the basement bottom plate is sequentially provided with a supporting bottom plate and supporting columns, and a column bottom supporting plate at the bottom end of each supporting column is connected with the supporting bottom plate through a positioning bolt;
The arch-shaped connecting beam is connected with the supporting upright post through the supporting column hoop;
A column top cross beam and a support longitudinal beam are sequentially arranged at the top end of the support column;
a beam top support body is arranged between the column top cross beam and the arched connecting beam;
The verticality and the elevation of the top surface of the supporting upright post are adjusted through the positioning bolts, and then an upright post diagonal bracing is arranged between the supporting upright post and the basement bottom plate;
S200, erecting an upper bracket: uniformly distributing template bracing beams at intervals along the longitudinal direction of the supporting longitudinal beam, and connecting a column bottom sleeve on the upper surface of the template bracing beam with a platform bracing column;
An inclined position control bolt is arranged between the platform supporting column and the template supporting beam, and an inclined support bottom plate at the bottom end of the inclined position control bolt is connected with the template supporting beam through a bottom plate anchor bar;
The two ends of the sliding falcon chute on the template supporting beam are respectively provided with a counter-force supporting plate, the two counter-force supporting plates are respectively provided with a first positioning bolt and a second positioning bolt, the other end of the first positioning bolt is connected with the template reinforcing rib, and the other end of the second positioning bolt is connected with the second sliding falcon;
A platform transverse plate is arranged at the top end of the platform supporting column, a first supporting pier and a second supporting pier are arranged on the platform transverse plate, a first positioning bolt and a second positioning bolt are arranged on the first supporting pier, and a third positioning bolt and a fourth positioning bolt are arranged on the second supporting pier;
reinforcing supporting plates are arranged on the upper surfaces of the first positioning bolt, the second positioning bolt, the third positioning bolt and the fourth positioning bolt;
S300, erecting a beam slab template: setting a plate bottom control position body on the haunching template;
The first beam die and the second beam die are respectively and firmly connected with the haunching die plate, then the first sliding falcon on the lower surface of the first beam die and the second sliding falcon on the bottom end of the second beam die are respectively connected with the sliding falcon chute, and a closed bag is arranged at the joint of the second sliding falcon and the second beam die;
the plate bottom position control body comprises a bag position control groove, a supporting bag and a transverse rib pressing plate, and the supporting bag is embedded into the bag position control groove; the bottom end of the supporting bag is in adhesive connection with the bag position control groove, and the top end of the supporting bag is in adhesive connection with the transverse rib pressing plate and is communicated with the bag communicating pipe; the closed bag is sewn into a closed cavity by adopting a geomembrane or a rubber sheet, and water or air is filled in the closed bag;
S400, controlling the arching of the template: a supporting base plate and an arch-forming supporting plate are sequentially arranged between the large-span plate die and the platform transverse plate, and a supporting pressure is applied to the arch-forming supporting plate through a supporting plate supporting pressing bolt, so that the arch-forming height of the large-span plate die is synchronously controlled;
S500, binding an axillary plate reinforcement cage: binding beam longitudinal bars and beam stirrups, then arranging axillary plate transverse bars and stirrup connectors, enabling stirrup clamping plates of the stirrup connectors to be vertically welded with positioning supporting plates, and welding longitudinal bar positioning bolts on the positioning supporting plates;
the two sides of the beam stirrup are respectively provided with stirrup clamping plates, and the stirrup clamping plates are firmly connected with the beam stirrup through clamping plate fastening bolts;
the length of the longitudinal rib positioning bolts at the two sides of the positioning supporting plate is adjusted, the positions of the longitudinal ribs of the armpit plates are limited through the limiting groove plates, and then the longitudinal ribs of the armpit plates are firmly connected with the transverse ribs of the armpit plates;
s600, beam slab concrete pouring: firstly, applying a jacking force to a supporting bag and a transverse rib pressing plate through a bag communicating pipe, and controlling the positions of the transverse ribs of the armpit plate and the longitudinal ribs of the armpit plate;
pouring the beam slab concrete;
When the beam slab concrete is poured to the elevation of the slab bottom control position, releasing the top pressure of the supporting bag on the transverse rib pressing plate, and then carrying out subsequent beam slab concrete pouring construction;
After the beam slab concrete forms strength, pressure is applied to the supporting bag through the bag communicating pipe, the haunching template and the beam slab concrete are pressurized, the haunching template is separated from the beam slab concrete, and then the height of the supporting upright post is adjusted by adopting the positioning bolt, so that the synchronous falling of the first beam mold, the second beam mold, the haunching template and the large-span slab mold is realized, and the construction is completed.
2. The method according to claim 1, wherein in step S300, the inclination angles of the reinforcing brace and the haunched form are adjusted by the first positioning pin, the second positioning pin, the third positioning pin, and the fourth positioning pin, and the first positioning pin and the second positioning pin are used to apply positioning pressure to the first beam mold and the second beam mold, respectively.
3. The method according to claim 1, wherein in step S400, the relative position between the support pads is controlled by pad limiting pins.
4. The method according to claim 2, wherein in step S300, the first positioning bolt, the second positioning bolt, the third positioning bolt and the fourth positioning bolt each comprise a screw and a nut, the fastening directions of the screws on both sides of the nut are opposite, the first positioning bolt and the third positioning bolt are arranged in a vertical direction, and the second positioning bolt and the fourth positioning bolt are arranged along a horizontal direction facing the reinforcing brace.
5. The method for constructing a top plate of a partially haunched special-shaped basement according to claim 1, characterized in that in step S400, the curvature of the upper surface of the arched supporting plate is the same as the curvature of the arched supporting plate after the large-span plate mold is arched, and the lower surface is provided with a plate bottom sliding falcon connected with a plate top sliding groove.
6. The construction method of the partial haunched special-shaped basement roof according to claim 5, characterized in that in the step S400, a roof sliding groove and a connecting supporting plate are arranged on the upper surface of the supporting base plate, and a floor sliding falcon is arranged on the lower surface of the supporting base plate; the cross sections of the plate bottom sliding falcons and the plate top sliding grooves are isosceles trapezoids; screw holes connected with the supporting plate jacking bolts are preset on the connecting supporting plates.
7. The construction method of the partial haunched special-shaped basement roof according to claim 1, characterized in that in the step S500, holes for the clamp fastening bolts to pass through are preset on the stirrup clamp plates, and stirrup connecting grooves connected with beam stirrups are preset on the stirrup clamp plates; the longitudinal rib positioning bolts comprise screws and nuts, and enable the fastening directions of the screws on two sides of the nuts to be opposite, and are welded with the limiting groove plates; the cross section of the limiting groove plate is arc-shaped, the inner diameter of the limiting groove plate is identical to the outer diameter of the longitudinal ribs of the armpit plate, and the central angle of the limiting groove plate is 90-180 degrees.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110004541A (en) * | 2009-07-08 | 2011-01-14 | 이창남 | Basement Downhole Using Sliding Frame Formation (SCF) |
| CN110409619A (en) * | 2019-08-30 | 2019-11-05 | 华神建设集团有限公司 | Steel core concrete column and armored concrete beam combination structure and construction method |
| CN113183311A (en) * | 2021-04-16 | 2021-07-30 | 浙江交工金筑交通建设有限公司 | Construction method of prefabricated T-shaped beam |
| CN113931363A (en) * | 2021-10-27 | 2022-01-14 | 中铁三局集团建筑安装工程有限公司 | Construction method of steel truss and profiled steel plate concrete composite floor |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110004541A (en) * | 2009-07-08 | 2011-01-14 | 이창남 | Basement Downhole Using Sliding Frame Formation (SCF) |
| CN110409619A (en) * | 2019-08-30 | 2019-11-05 | 华神建设集团有限公司 | Steel core concrete column and armored concrete beam combination structure and construction method |
| CN113183311A (en) * | 2021-04-16 | 2021-07-30 | 浙江交工金筑交通建设有限公司 | Construction method of prefabricated T-shaped beam |
| CN113931363A (en) * | 2021-10-27 | 2022-01-14 | 中铁三局集团建筑安装工程有限公司 | Construction method of steel truss and profiled steel plate concrete composite floor |
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