CN114000634A - Assembly type fold line type top cover and construction method thereof - Google Patents

Assembly type fold line type top cover and construction method thereof Download PDF

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Publication number
CN114000634A
CN114000634A CN202111508827.XA CN202111508827A CN114000634A CN 114000634 A CN114000634 A CN 114000634A CN 202111508827 A CN202111508827 A CN 202111508827A CN 114000634 A CN114000634 A CN 114000634A
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CN
China
Prior art keywords
support
assembled
connecting piece
straight
broken line
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Pending
Application number
CN202111508827.XA
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Chinese (zh)
Inventor
刘付钧
曾知超
肖永生
罗聿侃
覃祥延
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RBS Partners S&T Co Ltd
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RBS Partners S&T Co Ltd
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Application filed by RBS Partners S&T Co Ltd filed Critical RBS Partners S&T Co Ltd
Priority to CN202111508827.XA priority Critical patent/CN114000634A/en
Publication of CN114000634A publication Critical patent/CN114000634A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
    • E04B7/026—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs consisting of prefabricated modules, e.g. box-like or cell-like units
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
    • E04B7/06—Constructions of roof intersections or hipped ends
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B2005/176—Floor structures partly formed in situ with peripheral anchors or supports

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention relates to an assembled broken line type top cover which comprises an assembled broken line beam and an assembled composite floor slab, wherein the assembled broken line beam comprises a plurality of straight section hollow assembly beams, every two adjacent straight section hollow assembly beams are connected through a cross point connecting piece, two ends of the assembled broken line beam are respectively provided with a support connecting piece connected with a support, and the assembled composite floor slab is supported on the assembled broken line beam. The invention also provides a construction method of the assembled broken line type top cover, which not only realizes the die-free pouring, improves the construction efficiency, greatly lightens the weight of the prefabricated part, saves the transportation and hoisting cost, has good stress performance, can realize the large-span assembly of the top cover and reasonably utilizes the lower space, and has better engineering advantages.

Description

Assembly type fold line type top cover and construction method thereof
Technical Field
The invention relates to the field of building construction, in particular to an assembled broken line type top cover and a construction method thereof.
Background
At present, the fold-line-shaped top cover is mainly applied to houses or public buildings, when the span is large, a vertical bearing wall or column is often required to be arranged in the middle, or a truss girder is adopted to support a floor slab, and the truss girder is not detached. The common drawback of the two methods is that the space use of the lower part of the top cover is influenced, in addition, the existing concrete fold-line-shaped top cover mainly adopts a cast-in-place construction mode, a complex supporting system and a complex template system are needed, the manual formwork supporting and removing and reinforcing steel bar binding operations are more, the working procedures are complex, and the construction efficiency is low.
The zigzag-shaped top cover is less applied in the field of rail transit, such as subway stations and tunnels, and the main reason is that the span is large, and the lower part of the top cover cannot be provided with a vertical bearing wall or a vertical bearing column due to the need of running vehicles. If cast-in-place is adopted, a supporting system and a template system are complex, and if a fully-prefabricated solid polygonal top cover is adopted, the weight of a prefabricated part is large, and hoisting construction is difficult.
Disclosure of Invention
Aiming at the problems, the invention provides the assembled broken line type top cover which is free of die casting, greatly reduces the weight of a prefabricated part, realizes long-span assembly of the top cover and reasonably utilizes the lower space and the construction method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an assembled broken line type top cap, includes assembled broken line roof beam and assembled coincide floor, assembled broken line roof beam includes the straight section cavity assembly beam of several, and per two adjacent straight section cavity assembly beams pass through the nodical connecting piece and connect, the both ends of assembled broken line roof beam all are equipped with the support connecting piece of connection support, assembled coincide floor support in on the assembled broken line roof beam.
Preferably, the cross section of the intersection point connecting piece is U-shaped, the bottom surface and the side surface are formed by enclosing steel plates, the upper surface of the intersection point connecting piece is open, and the left end and the right end of the intersection point connecting piece are in lap joint with the straight hollow assembly beam.
Preferably, the cross section of the support connecting piece is U-shaped, the bottom surface and the side surface are formed by enclosing steel plates, the upper surface of the support connecting piece is open, one end of the support connecting piece is in lap joint with the straight section hollow assembly beam, and the other end of the support connecting piece is connected with the support through the support supporting piece.
Preferably, the support is L-shaped in cross section, the side surface of the support is connected with the support through anchor bars, and the upper surface of the support is provided with shear bolts connected with the support connecting piece.
Preferably, the intersection point connecting piece and the support connecting piece are connected through split bolts at the lap joint section connected with the straight section hollow assembling beam.
Preferably, a first L-shaped moving steel bar and a second L-shaped moving steel bar are arranged at the joint of two adjacent straight hollow assembly beams, the first L-shaped moving steel bar is arranged at the top of the straight hollow assembly beam before being assembled and moves to the top of the intersection point in parallel after being in place, the second L-shaped moving steel bar is arranged at the bottom of the straight hollow assembly beam before being assembled and moves to the bottom of the intersection point in parallel after being in place.
Preferably, moving straight steel bars are arranged on the inner top and the inner bottom of one end, connected with the support, of the straight hollow assembly beam at the two ends of the assembled broken-line beam, the moving straight steel bars are positioned in the straight hollow assembly beam before assembly, and move in parallel after being positioned until one end is inserted into the support.
Preferably, an opening frame vertical stirrup is arranged above the intersection point connecting piece, the opening frame vertical stirrup extends downwards to the lower part of the intersection point connecting piece, an angle point position on the upper part of the opening frame vertical stirrup is connected with the first L-shaped movable steel bar to form a steel bar framework, and an opening of the opening frame vertical stirrup faces downwards.
Preferably, the straight hollow assembly beams are connected in sequence to form a multi-section broken line shape, and the axis shape of the corresponding assembly type broken line beam is a multi-section broken line shape.
Preferably, concrete is poured into the cavities of the assembled broken line beam, the assembled composite floor slab and the support.
The invention also provides a construction method of the assembled broken line type top cover, which comprises the following steps:
step S1, arranging an installation jig frame, wherein the shape of the upper surface of the installation jig frame is the same as that of the assembled broken line beam, and supports are arranged at two ends of the installation jig frame;
step S2, installing the intersection point connecting piece and the support connecting piece at corresponding positions on the installation jig frame;
step S3, hoisting a plurality of straight hollow assembly beams to corresponding positions of the mounting jig frame, and connecting and fixing the straight hollow assembly beams with the intersection point connecting piece and the support connecting piece to form a connected assembly type broken line beam;
step S4, before the support is poured with concrete for the first time, the anchor bar is inserted into the support through the side surface of the support, so that the side surface of the support is tightly attached to the side surface of the support and is temporarily fixed;
step S5, pouring concrete of the support for the first time to firmly fix the support bearing and the support, wherein the pouring height of the concrete surface is flush with the upper surface of the support bearing;
step S6, hanging the connected assembled polygonal-line-shaped beam off the mounting jig and placing the assembled polygonal-line-shaped beam on the upper surface of the support, screwing the shear bolts to fix the support connecting piece and the support, and temporarily fixing the first L-shaped movable steel bar, the second L-shaped movable steel bar and the movable straight steel bar with the straight hollow assembly beam without extending the end parts;
step S7, hoisting the assembled composite floor slab bottom plate, and placing the plate edge on the upper edge of the prefabricated shell of the straight-section hollow assembly beam;
step S8, moving the first L-shaped movable steel bar, the second L-shaped movable steel bar and the movable straight steel bar at each intersection point and the support in place;
step S9, placing the open frame vertical stirrups at each junction and fixing the open frame vertical stirrups with the first L-shaped movable steel bar;
step S10, placing and fixing the steel bars of the cast-in-place layer of the fabricated composite floor slab;
and step S11, concrete of the assembled broken line beam, the assembled superposed floor slab and the support is poured for the second time, and the whole is formed after the concrete is hardened.
Compared with the prior art, the invention has the following beneficial effects:
1. the construction template is formed by the prefabricated bottom plates of the plurality of straight-section hollow assembly beams and the laminated floor slab bottom plate, no additional template is needed for concrete pouring, and compared with a cast-in-place fold-line-shaped top cover, the construction method reduces the operations of erecting and disassembling the template and binding steel bars on site, and shortens the construction period; compared with the fully prefabricated solid fold-line-shaped top cover, the invention reduces the weight of the prefabricated part, saves the transportation and hoisting cost, improves the construction efficiency, fully exerts the advantages of two materials of steel and concrete and has good integral stress performance. In conclusion, the assembled fold line type top cover provided by the invention realizes die-free pouring, greatly reduces the weight of a prefabricated part, has good stress performance and has better engineering advantages and economic benefits;
2. the prefabricated broken-line beam is assembled by the intersection point connecting piece, the support connecting piece and the plurality of straight hollow assembly beams, so that the problems of great weight and difficult hoisting of the existing large-span structure fully-prefabricated solid concrete top cover can be solved, and the use of the space at the lower part of the top cover is not influenced;
3. the construction method provided by the invention is easy to assemble, simple to operate and convenient to popularize and use.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at D;
FIG. 3 is an enlarged view of E in FIG. 1;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 6 is a cross-sectional view taken at C-C of FIG. 1;
FIG. 7 is an assembly view of the assembled broken line beam on the mounting jig before it is hoisted;
FIG. 8 is a schematic view of the assembly type broken line beam hoist;
fig. 9 is another perspective view of the present invention.
Detailed Description
The invention will be described in detail with reference to fig. 1-9, wherein exemplary embodiments and descriptions of the invention are provided to explain the invention without limiting the invention thereto.
An assembled broken line type top cover comprises an assembled broken line type beam 1 and an assembled superposed floor slab 2, wherein the assembled broken line type beam comprises a plurality of straight section hollow assembled beams 3, every two adjacent straight section hollow assembled beams are connected through an intersection point connecting piece 4, the straight section hollow assembled beams are sequentially connected to form a multi-section broken line shape, the axis shape of the corresponding assembled broken line type beam is a multi-section broken line shape, the assembled broken line type beam shown in figure 1 is formed by connecting two straight section hollow assembled beams, the assembled broken line type beam shown in figure 9 is formed by sequentially connecting five straight section hollow assembled beams, two ends of the assembled broken line type beam are respectively provided with a support connecting piece 5 for connecting a support 9, the assembled superposed floor slab is supported on the assembled broken line type beam, the plate edge of a specific assembled superposed floor slab is placed on the upper edge of a prefabricated shell of the straight section hollow assembled beam, the cast-in-place layer steel bar of the assembled laminated floor slab is bound and fixed with a steel bar cage in the straight hollow assembly beam, the cross section of the intersection point connecting piece is U-shaped, the bottom surface and the side surface of the intersection point connecting piece are enclosed by steel plates, the upper surface of the intersection point connecting piece is open, the left end and the right end of the intersection point connecting piece are both lapped with the straight hollow assembly beam, the cross section of the support connecting piece is U-shaped, the bottom surface and the side surface of the support connecting piece are enclosed by steel plates, the upper surface of the support connecting piece is open, one end of the support connecting piece is lapped with the straight hollow assembly beam, the other end of the support connecting piece is connected with a support through a support supporting piece 7, the intersection point connecting piece and the support connecting piece are connected through a cross-section counter-pull bolt 6 in the lapping section connected with the straight hollow assembly beam, the support supporting piece is L-shaped, and the side surface of the support supporting piece is connected with the support through an anchor bar 8, the upper surface of the support bearing is provided with shear bolts 10 connected with the support bearing connecting piece, the assembled broken line beam is assembled on an installation jig frame 15 before being hoisted, and then the assembled broken line beam, the assembled composite floor slab and the support bearing are assembled, and concrete 14 is poured until the assembled broken line beam, the assembled composite floor slab and the support bearing are hardened to form a whole.
Preferably, a first L-shaped moving reinforcement 11 and a second L-shaped moving reinforcement 16 are arranged at the joint of two adjacent straight hollow assembly beams, the first L-shaped moving reinforcement is arranged at the inner top of the straight hollow assembly beam before being assembled, and moves in parallel to the top of the intersection after being in place, the L vertex of the specific first L-shaped moving reinforcement is located at the top of the intersection, the second L-shaped moving reinforcement is arranged at the inner bottom of the straight hollow assembly beam before being assembled, and moves in parallel to the bottom of the intersection after being in place, the L vertex of the specific second L-shaped moving reinforcement is located at the bottom of the intersection, and the first L-shaped moving reinforcement and the second L-shaped moving reinforcement can further strengthen the connection between the two adjacent straight hollow assembly beams, so that the connection relationship between the two straight hollow assembly beams is more stable.
Preferably, nodical connecting piece top sets up opening frame vertical stirrup 13, opening frame vertical stirrup extends downwards to nodical connecting piece lower part, and opening frame vertical stirrup upper portion angular point position and first L shape removal rebar connection form framework of steel reinforcement, opening frame vertical stirrup opening is down.
Preferably, the movable straight steel bars 12 are arranged at the inner top and the inner bottom of one end, connected with the support, of the straight hollow assembly beam at the two ends of the assembled broken-line beam, are positioned in the straight hollow assembly beam before being assembled, and move in parallel to one end to be inserted into the support after being positioned, and the movable straight steel bars are convenient to assemble through moving and can further stabilize the connection relation between the straight hollow assembly beam and the support.
Preferably, the first L-shaped movable steel bar, the second L-shaped movable steel bar and the movable straight steel bar can be set into a plurality of steel bars according to requirements, and the optimization of the connection relation is realized.
The invention also provides a construction method of the assembled broken line type top cover, which comprises the following steps:
step S1, arranging an installation jig frame, wherein the shape of the upper surface of the installation jig frame is the same as that of the assembled broken line beam, and supports are arranged at two ends of the installation jig frame;
step S2, installing the intersection point connecting piece and the support connecting piece at corresponding positions on the installation jig frame;
step S3, hoisting a plurality of straight hollow assembly beams to corresponding positions of the mounting jig frame, and connecting and fixing the straight hollow assembly beams with the intersection point connecting piece and the support connecting piece to form a connected assembly type broken line beam;
step S4, before the support is poured with concrete for the first time, the anchor bar is inserted into the support through the side surface of the support, so that the side surface of the support is tightly attached to the side surface of the support and is temporarily fixed;
step S5, pouring concrete of the support for the first time to firmly fix the support bearing and the support, wherein the pouring height of the concrete surface is flush with the upper surface of the support bearing;
step S6, hanging the connected assembled polygonal-line-shaped beam off the mounting jig and placing the assembled polygonal-line-shaped beam on the upper surface of the support, screwing the shear bolts to fix the support connecting piece and the support, and temporarily fixing the first L-shaped movable steel bar, the second L-shaped movable steel bar and the movable straight steel bar with the straight hollow assembly beam without extending the end parts;
step S7, hoisting the assembled composite floor slab bottom plate, and placing the plate edge on the upper edge of the prefabricated shell of the straight-section hollow assembly beam;
step S8, moving the first L-shaped movable steel bar, the second L-shaped movable steel bar and the movable straight steel bar at each intersection point and the support in place;
step S9, placing the open frame vertical stirrups at each junction and fixing the open frame vertical stirrups with the first L-shaped movable steel bar;
s10, placing and fixing cast-in-place layer steel bars of the fabricated composite floor slab, and specifically binding and fixing the steel bars with a steel bar cage in the straight hollow assembly beam;
and step S11, concrete of the assembled broken line beam, the assembled superposed floor slab and the support is poured for the second time, and the whole is formed after the concrete is hardened.
The prefabricated bottom plate of the plurality of straight-section hollow assembling beams and the laminated floor slab bottom plate is utilized to form a construction template in the construction of the assembled broken-line-shaped top cover, no additional template is needed in concrete pouring, and compared with a cast-in-place broken-line-shaped top cover, the construction of the assembled broken-line-shaped top cover reduces the operations of erecting and dismantling the template and binding steel bars on site, and shortens the construction period; compared with the fully prefabricated solid polygonal top cover, the prefabricated solid polygonal top cover has the advantages that the weight of prefabricated parts is reduced, the transportation and hoisting cost is saved, the construction efficiency is improved, the advantages of two materials of steel and concrete are fully exerted, the integral stress performance is good, the prefabricated polygonal beam is assembled by the intersection point connecting piece, the support connecting piece and the plurality of straight section hollow assembly beams, the problems of great weight and difficult hoisting of the existing large-span structure fully prefabricated solid concrete top cover can be solved, and the space use of the lower part of the top cover is not influenced. In conclusion, the assembled fold line type top cover provided by the invention realizes die-free pouring, greatly reduces the weight of prefabricated parts, has good stress performance and better engineering advantages and economic benefits, and can be particularly applied to the field of top cover buildings with large span.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.

Claims (10)

1. An assembled broken line type top cap which characterized in that: including assembled broken line roof beam (1) and assembled coincide floor (2), assembled broken line roof beam includes several straight section cavity assembly roof beam (3), and per two adjacent straight section cavity assembly roof beams connect through nodical connecting piece (4), the both ends of assembled broken line roof beam all are equipped with support connecting piece (5) of connecting support (9), assembled coincide floor support in on the assembled broken line roof beam.
2. The fabricated fold line top cover of claim 1, wherein: the cross-section of nodical connecting piece is the U type, and bottom surface and side enclose by the steel sheet and close and form, nodical connecting piece's upper surface is open, and nodical connecting piece's left end and right both ends all with straight section cavity assembly roof beam overlap joint.
3. The fabricated fold line top cover of claim 2, wherein: the cross-section of the support connecting piece is U-shaped, the bottom surface and the side surface are formed by enclosing steel plates, the upper surface of the support connecting piece is open, one end of the support connecting piece is in lap joint with the straight section hollow assembly beam, and the other end of the support connecting piece is connected with the support through a support supporting piece (7).
4. The fabricated fold line top cover according to claim 3, wherein: the support bearing piece is L-shaped in cross section, the side face of the support bearing piece is connected with the support through an anchor bar (8), and the upper surface of the support bearing piece is provided with a shear bolt (10) connected with the support connecting piece.
5. The fabricated fold line top cover according to claim 3, wherein: the intersection point connecting piece and the support connecting piece are connected through a split bolt (6) at the lap joint section connected with the straight section hollow assembling beam.
6. The fabricated fold line top cover of claim 1, wherein: and a first L-shaped movable steel bar (11) and a second L-shaped movable steel bar (16) are arranged at the joint of two adjacent straight-section hollow assembling beams, the first L-shaped movable steel bar is positioned at the inner top of the straight-section hollow assembling beam before being assembled and moves to the top position of the intersection point in parallel after being in place, the second L-shaped movable steel bar is positioned at the inner bottom of the straight-section hollow assembling beam before being assembled and moves to the bottom position of the intersection point in parallel after being in place.
7. The fabricated fold line top cover of claim 1, wherein: the inner top and the inner bottom of one end, connected with the support, of the straight section hollow assembly beam at two ends of the assembled broken line beam are respectively provided with a movable straight steel bar (12), the movable straight steel bars are positioned in the straight section hollow assembly beam before being assembled, and move in parallel to one end to be inserted into the support after being positioned.
8. The fabricated fold line top cover of claim 6, wherein: the intersection connecting piece top sets up opening frame vertical stirrup (13), opening frame vertical stirrup extends downwards to intersection connecting piece lower part, and opening frame vertical stirrup upper portion angular point position and first L shape removal rebar connection form framework of steel reinforcement.
9. The fabricated fold line top cover of claim 1, wherein: concrete (14) is poured in the cavities of the assembled broken line beam, the assembled composite floor slab and the support.
10. A construction method of the fabricated folding top according to any one of claims 1 to 9, wherein: the method comprises the following steps:
step S1, arranging an installation jig frame, wherein the shape of the upper surface of the installation jig frame is the same as that of the assembled broken line beam, and supports are arranged at two ends of the installation jig frame;
step S2, installing the intersection point connecting piece and the support connecting piece at corresponding positions on the installation jig frame;
step S3, hoisting a plurality of straight hollow assembly beams to corresponding positions of the mounting jig frame, and connecting and fixing the straight hollow assembly beams with the intersection point connecting piece and the support connecting piece to form a connected assembly type broken line beam;
step S4, before the support is poured with concrete for the first time, the anchor bar is inserted into the support through the side surface of the support, so that the side surface of the support is tightly attached to the side surface of the support and is temporarily fixed;
step S5, pouring concrete of the support for the first time to firmly fix the support bearing and the support, wherein the pouring height of the concrete surface is flush with the upper surface of the support bearing;
step S6, hanging the connected assembled polygonal-line-shaped beam off the mounting jig and placing the assembled polygonal-line-shaped beam on the upper surface of the support, screwing the shear bolts to fix the support connecting piece and the support, and temporarily fixing the first L-shaped movable steel bar, the second L-shaped movable steel bar and the movable straight steel bar with the straight hollow assembly beam without extending the end parts;
step S7, hoisting the assembled composite floor slab bottom plate, and placing the plate edge on the upper edge of the prefabricated shell of the straight-section hollow assembly beam;
step S8, moving the first L-shaped movable steel bar, the second L-shaped movable steel bar and the movable straight steel bar at each intersection point and the support in place;
step S9, placing the open frame vertical stirrups at each junction and fixing the open frame vertical stirrups with the first L-shaped movable steel bar;
step S10, placing and fixing the steel bars of the cast-in-place layer of the fabricated composite floor slab;
and step S11, concrete of the assembled broken line beam, the assembled superposed floor slab and the support is poured for the second time, and the whole is formed after the concrete is hardened.
CN202111508827.XA 2021-12-10 2021-12-10 Assembly type fold line type top cover and construction method thereof Pending CN114000634A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111508827.XA CN114000634A (en) 2021-12-10 2021-12-10 Assembly type fold line type top cover and construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111508827.XA CN114000634A (en) 2021-12-10 2021-12-10 Assembly type fold line type top cover and construction method thereof

Publications (1)

Publication Number Publication Date
CN114000634A true CN114000634A (en) 2022-02-01

Family

ID=79931651

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111508827.XA Pending CN114000634A (en) 2021-12-10 2021-12-10 Assembly type fold line type top cover and construction method thereof

Country Status (1)

Country Link
CN (1) CN114000634A (en)

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