CN108301546B - Assembled large-module superposed beam plate structure with plane truss temporary support - Google Patents
Assembled large-module superposed beam plate structure with plane truss temporary support Download PDFInfo
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- CN108301546B CN108301546B CN201810176542.2A CN201810176542A CN108301546B CN 108301546 B CN108301546 B CN 108301546B CN 201810176542 A CN201810176542 A CN 201810176542A CN 108301546 B CN108301546 B CN 108301546B
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 239000004567 concrete Substances 0.000 claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 238000010276 construction Methods 0.000 claims abstract description 18
- 239000011178 precast concrete Substances 0.000 claims description 21
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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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
- 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
- E04B5/29—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal
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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)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an assembled large-module superposed beam plate structure with a plane truss temporary support. After the beam and the connecting plate are welded, the beam and the connecting plate are connected with the truss through bolts to form a temporary whole. And laying a reinforcing mesh on the beam slab, extending the reinforcing mesh to be welded with the beam flange, and pouring a concrete slab layer to form the assembled large module beam slab structure. And after the steel bars are hoisted in place on site, laying upper-layer steel bars and pouring residual concrete. The invention adopts the assembled large module composite floor slab with temporary support, thus solving the problem of floor slab integrity; the beam-slab connection problem is solved by integrating the large module beam-slab structure into a beam-slab structure; the reinforcing mesh is simple and convenient to manufacture, and the later-stage pipeline arrangement is facilitated; the hoisting weight is reduced, and the assembly precision and the construction efficiency are improved.
Description
Technical Field
The invention relates to an assembled large-module superposed beam plate structure with a plane truss temporary support, and belongs to the technical field of structural engineering.
Background
The assembly type building is an object of key development of the building industry in China for a period of time in the future, and the innovation of an industrialized assembly type structure system is imperative. Fabricated structural systems refer to buildings produced by fabricating building units or components according to uniform, standard building component specifications, and then transporting them to the job site for assembly into place. A large number of building parts are produced and processed in a workshop, a large number of assembly operations are carried out on site, the design is standardized, the management is informationized, and the requirements of green buildings are met. The building construction method has the characteristics of light building weight, energy conservation, environmental protection, high construction speed, high industrialization degree and the like, can solve the problems of low building industrialization level, low building construction labor productivity, low quality of traditional house products and the like in China, and is suitable for the development of the building industry in China.
Floor slabs are one of the basic elements in the entire building. The prefabricated floor slab structure is adopted, a standard floor slab is prefabricated in a factory, the on-site hoisting and splicing can reduce the on-site wet operation workload, and the construction period is greatly shortened. However, the existing fabricated composite floor slab often has the following problems: the single plate is prefabricated, the floor slab assembled on site is mainly stressed by the single plate, all prefabricated plates are not connected with each other, and the integrity cannot be ensured; the common fabricated floor is separated from the beam, and the beam-slab connection has problems; the precast concrete layer is thicker, so that the hoisting weight is increased and the difficulty is improved. And adopt steel bar truss's prefabricated coincide floor, there is steel bar truss again to make complicacy, needs overlap joint with other reinforcing bars to increase the reinforcing bar volume, occupies that the space is great to be unfavorable for arranging the pipeline scheduling problem.
Disclosure of Invention
The invention provides an assembled large-module superposed beam plate structure with a plane truss temporary support, which aims to overcome the defects of the existing assembled floor plate structure, realize factory production and on-site quick assembly in the production and construction processes of an assembled floor plate, solve the integrity problem of splicing of prefabricated floor plates by superposition and improve the reliability of the structure. Meanwhile, the large module beam-slab structure is beam-slab integrated, and the connection problem of beam slabs is solved. The reinforcing mesh is used as the stress bar of the prefabricated slab, so that the prefabricated slab is simple and convenient to manufacture and is beneficial to arrangement of pipelines in the later period. Meanwhile, the hoisting weight is reduced, the construction difficulty is reduced, and the construction efficiency is improved.
The technical scheme of the invention is as follows: an assembled large-module superposed beam plate structure with a plane truss temporary support comprises a beam, a temporary support (4), a beam connecting plate (5), a reinforcing mesh and a precast concrete layer (6).
The beam comprises a transverse side span I-shaped section beam (1), a mid-span channel steel beam (2) and a longitudinal I-shaped section beam (3). The transverse side span I-shaped section beam (1) and the midspan channel steel beam (2) are arranged in parallel, and the longitudinal I-shaped section beam (3) is vertically arranged on two sides of the beam end between the transverse side span I-shaped section beam (1) and the midspan channel steel beam (2); the upper end and the lower end of each beam connecting plate (5) are respectively welded on the transverse side span I-shaped section beam (1) and the middle span channel steel beam (2).
The temporary support (4) adopts a plane truss support, and can meet the bearing capacity requirement in the construction stage. The temporary supports (4) are arranged along the direction perpendicular to the transverse side span I-shaped section beam (1) and the mid-span channel steel beam (2). Support connecting plates (11) are welded at two ends of the plane truss support, and the temporary support (4) is connected with the beam through a beam connecting plate (5).
The beam connecting plate (5) is a connecting plate with holes; the beam connecting plate (5) is connected with the beam in a welding mode, the supporting connecting plate (11) is provided with a connecting hole, and the connecting hole in the supporting connecting plate (11) is aligned with the hole in the beam connecting plate (5) and is screwed and fixed through the bolt (9) and the hexagon nut (10) during assembly.
And after the temporary support (4) is connected with the beam, a precast concrete layer (6) is manufactured.
The thickness of the precast concrete layer (6) is 4-5cm, the precast concrete layer (6) is poured on the temporary support (4), and the poured precast concrete layer (6) is flush with the surface of the upper flange of the beam.
The reinforcing mesh is arranged in the precast concrete layer (6). And after the reinforcing mesh is laid, concrete is poured, and concrete is also poured on the inner side of the flange of the beam during pouring, so that the precast concrete layer (6) and the beam form a whole. The reinforcing mesh comprises longitudinal reinforcing steel bars (7) and transverse reinforcing steel bars (8). The longitudinal steel bars (7) are placed below the transverse steel bars (8), the longitudinal steel bars (7) and the transverse steel bars (8) are vertically distributed, and the longitudinal steel bars (7) penetrate into the transverse side-span I-shaped section beam (1) and the mid-span channel steel beam (2) to the edge of the web plate. The transverse steel bars (8) penetrate into the longitudinal I-shaped section beam (3) to the edge of the web plate; and the transverse steel bars (8) are welded with the lower side of the upper flange of the longitudinal I-shaped section beam (3).
The pouring structure of the concrete at the beam connecting plate (5) is as follows: concrete is poured between the web plate of the beam and the beam connecting plate (5), and the rest part of the concrete of the beam is poured from the web plate to the outermost side of the flange. Before pouring, sponge is stuffed between the hexagon nut (10) of the beam connecting plate (5) and the bolt hole gap for sealing.
After the prefabricated and processed factory of the assembled large-module composite beam plate structure with the temporary truss support is finished, the assembled large-module composite beam plate structure is transported to the site to be hoisted in place, a reinforcing mesh on the upper layer of the floor slab is laid above a prefabricated concrete layer (6) according to the design, and the rest of the floor slab concrete is poured to form the composite floor slab. And after the floor slab is cured, the bolts (9) are removed, and the temporary supports (4) are removed to finish the construction of the assembled composite floor slab.
The beam and the temporary support (4) are welded through connecting pieces, bolted and prefabricated through concrete composite slabs in a factory, the large module beam slab is hoisted in place in a construction site, and then the rest floor slab concrete is poured.
The invention has the following beneficial effects:
the prefabricated large module beam slab structure is adopted, so that the prefabricated large module beam slab structure is produced in a factory in advance, the number of assembly parts in field construction is reduced, the problem of integrity of an assembly type floor slab is solved, and the structural safety is improved. The prefabricated floor slab is prefabricated by adopting a form of a laminated floor slab, and the rest part of the floor slab is poured after the integral hoisting is in place, so that the hoisting weight can be reduced, the hoisting difficulty is reduced, and the assembly precision is improved. Because there is precast concrete layer to do the bottom plate, can reduce formwork work in a large number when the cast in situ floor, improve work efficiency for the construction progress.
Drawings
Figure 1 is a plan view of an assembled folding floor panel of the present invention.
Figure 2 is an exploded view of the assembled composite floor panel a panel unit of the present invention.
Fig. 3 is a schematic view of the construction of the planar truss and the support end connection plates of the present invention.
Fig. 4 is a schematic view of the beam connecting plate and beam connecting structure of the present invention.
Figure 5 is a schematic cross-sectional view of the beam to truss connection of the present invention.
Fig. 6 is an assembly schematic view of the assembled composite beam slab structure system with temporary support according to the present invention.
In the figure: A. the steel plate comprises a side span plate unit, a middle span plate unit, a transverse side span I-shaped section beam, a middle span channel steel beam, a longitudinal I-shaped section beam, a temporary support, a beam connecting plate, a precast concrete layer, a longitudinal steel bar, a transverse steel bar, a bolt, a hexagon nut, a supporting connecting plate and the like, wherein the transverse side span I-shaped section beam is 1, the transverse side span I-shaped section beam is 2, the middle span channel steel beam is 3, the longitudinal I-shaped section beam is 4, the temporary.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the fabricated large modular composite beam slab structure with the plane truss temporary support is composed of a temporary truss support, a section steel beam, a composite floor slab, a reinforcing mesh and a connecting plate; the basic composition units of the assembled large-module superposed beam slab with the plane truss temporary support comprise an edge-span slab unit A and a mid-span slab unit B; the two end side spans of the assembled large module superposed beam slab with the plane truss temporary support are side span slab units A, the second span connected with the side span slab units A adopts middle span slab units B, and all the other span units adopt middle span slab units B and are mutually spliced.
The longitudinal beam of the fabricated superposed beam plate structure completely adopts an I-shaped section beam (3). One side of the end part of the beam plate in the side span plate unit A is a transverse side span I-shaped section beam (1), and the transverse beam connected with the mid-span plate unit B is a mid-span channel steel beam (2). And the transverse beams on two sides of the midspan plate unit B are midspan channel steel beams (2).
The construction of the side span plate unit A and the mid span plate unit B is different only in the section form of the transverse beam, and the forms of the rest temporary supports (4), the beam connecting plates (5), the precast concrete layers (6), the longitudinal steel bars (7), the transverse steel bars (8) and the like are the same.
The following takes the side span plate unit a as an example to describe the specific construction measures of the fabricated composite beam plate structure in detail.
As shown in the attached drawing 2, the fabricated beam-slab structure mainly comprises transverse side span I-shaped section beams (1) and middle span channel steel beams (2), longitudinal I-shaped section beams (3), temporary supports (4), beam connecting plates (5), precast concrete layers (6), longitudinal steel bars (7), transverse steel bars (8) and support connecting plates (11).
As shown in the attached drawings 2 and 3, the temporary supports (4) are supported by plane trusses and are arranged at certain intervals in the direction perpendicular to the transverse side span I-shaped section beam (1) and the mid-span channel steel beam (2). As shown in the figure, perforated supporting connecting plates (11) are welded on the outer sides of the upper chord and the lower chord at the two ends of the plane truss. And the temporary support (4) is connected with the beam connecting plate (5) through a support connecting plate (11).
As shown in the attached figure 4, the upper edge and the lower edge of the beam connecting plate (5) are respectively welded on the inner sides of the upper flange and the lower flange of the transverse side span I-shaped section beam (1) and the mid-span channel steel beam (2).
As shown in fig. 5, the beam connecting plate (5) and the support connecting plate (11) are connected by a bolt (9) and a hexagon nut (10). The hexagonal nut (10) is placed on one side of the beam connecting plate (5), and a gap between the nut and the hole is sealed by foam rubber, so that the nut is convenient to disassemble after on-site hoisting construction.
After the temporary support and the beam are connected, a reinforcing mesh is laid and concrete is poured as shown in figures 1, 2 and 5. The precast concrete layer (6) is a 4-5cm reinforced concrete layer, and is poured on the temporary support, so that the poured concrete layer is flush with the surface of the upper flange of the beam, and the later-stage work such as hoisting is facilitated. The method specifically comprises the following steps: and taking the lower layer reinforcing mesh of the reinforced concrete beam slab as the reinforcing mesh in the precast concrete layer (6) during design. Comprises longitudinal steel bars (7) and transverse steel bars (8). After the temporary support is built, longitudinal steel bars (7) and transverse steel bars (8) are laid on the temporary support. The longitudinal steel bar (7) is arranged below the transverse steel beam, and the steel bar is deeply inserted into the flange of the transverse steel beam to the edge of the web plate. Placing transverse reinforcing steel bars (8) on the transverse reinforcing steel bars (7), and similarly, penetrating the transverse reinforcing steel bars (8) into flanges of the longitudinal I-shaped section beam (3) to the edges of the web plates; and the transverse reinforcing steel bars (8) are welded with the lower sides of the upper flanges of the longitudinal beams (3).
And after the laying is finished, a concrete layer can be poured, and concrete is also poured on the inner side of the beam flange during the layer pouring, so that the layer and the plate form a whole. Sponge is stuffed between the hexagon nut (10) and the bolt (9) on the left side of the beam connecting plate (5) for sealing before pouring. The pouring structure of the concrete at the beam connecting plate (5) is as follows: and pouring the part between the beam web plate and the beam connecting plate (5). And pouring the rest parts of the beam along the web plate to the outermost side of the flange.
As shown in fig. 6, the assembled composite beam slab structure is shown.
After the prefabricated and processed factory of the assembled large-module composite beam plate structure with the temporary truss support is finished, the assembled large-module composite beam plate structure is transported to the site to be hoisted in place, an upper layer of reinforcing mesh is laid above a prefabricated concrete layer (6) according to the design, and the rest floor concrete is poured to form a composite floor. And after the floor slab is cured, removing the bolts (9) and removing the temporary support (4). And the construction of the assembled composite floor slab can be finished.
The above is a specific embodiment of the present invention, and the implementation of the present invention is not limited thereto.
Claims (1)
1. The utility model provides a take assembled big module coincide beam plate structure of plane truss temporary support which characterized in that: the assembled large-module superposed beam plate structure with the plane truss temporary support comprises a beam, a temporary support (4), a beam connecting plate (5), a reinforcing mesh and a precast concrete layer (6);
the basic composition units of the assembled large-module superposed beam plate structure with the plane truss temporary support comprise an edge-span plate unit A and a mid-span plate unit B; the two end side spans of the assembled large-module superposed beam plate structure with the plane truss temporary support are side span plate units A, a second span connected with the side span plate units A adopts a middle span plate unit B, and all the other spans adopt the middle span plate units B and are mutually spliced;
the beam comprises a transverse side span I-shaped section beam (1), a mid-span channel steel beam (2) and a longitudinal I-shaped section beam (3); the transverse side span I-shaped section beam (1) and the midspan channel steel beam (2) are arranged in parallel, and the longitudinal I-shaped section beam (3) is vertically arranged on two sides of the beam end between the transverse side span I-shaped section beam (1) and the midspan channel steel beam (2); the upper end and the lower end of each beam connecting plate (5) are respectively welded on the transverse side span I-shaped section beam (1) and the middle span channel steel beam (2);
the temporary support (4) adopts a plane truss support, so that the bearing capacity requirement in the construction stage can be met; the temporary supports (4) are placed along the direction vertical to the transverse side span I-shaped section beam (1) and the mid-span channel steel beam (2); support connecting plates (11) are welded at two ends of the plane truss support, and the temporary support (4) is connected with the beam through a beam connecting plate (5);
the beam connecting plate (5) is a connecting plate with holes; the beam connecting plate (5) is connected with the beam in a welding mode, the supporting connecting plate (11) is provided with a connecting hole, and the connecting hole in the supporting connecting plate (11) is aligned with the hole in the beam connecting plate (5) and is screwed and fixed through a bolt (9) and a hexagon nut (10) during assembly;
after the temporary support (4) is connected with the beam, a precast concrete layer (6) is manufactured;
the thickness of the precast concrete layer (6) is 4-5cm, the precast concrete layer (6) is poured on the temporary support (4), and the poured precast concrete layer (6) is flush with the surface of the upper flange of the beam;
the reinforcing mesh is arranged in the precast concrete layer (6); after the reinforcing mesh is laid, concrete is poured, and concrete is also poured on the inner side of the flange of the beam during pouring, so that the precast concrete layer (6) and the beam form a whole; the reinforcing mesh comprises longitudinal reinforcing steel bars (7) and transverse reinforcing steel bars (8); the longitudinal steel bars (7) are placed below the transverse steel bars (8), the longitudinal steel bars (7) and the transverse steel bars (8) are vertically arranged, and the longitudinal steel bars (7) penetrate into the edges of the webs of the transverse side-span I-shaped section beams (1) and the mid-span channel steel beams (2); the transverse steel bars (8) penetrate into the edges of the web plates of the longitudinal I-shaped section beams (3); welding the transverse steel bars (8) with the lower side of the upper flange of the longitudinal I-shaped section beam (3); the pouring structure of the concrete at the beam connecting plate (5) is as follows: pouring concrete between the web plate of the beam and the beam connecting plate (5), and pouring the rest part of concrete of the beam along the web plate to the outermost side of the flange; before pouring, sponge is stuffed between the hexagon nut (10) of the beam connecting plate (5) and the bolt hole gap for sealing;
after the prefabricated and processed factory of the assembled large-module superposed beam slab structure with the plane truss temporary support is finished, the assembled large-module superposed beam slab structure is transported to the site to be hoisted in place, a reinforcing mesh on the upper layer of the floor slab is laid above a prefabricated concrete layer (6) according to the design, and the rest floor slab concrete is poured to form a superposed floor slab; and after the floor slab is cured, the bolts (9) are removed, and the temporary supports (4) are removed to finish the construction of the assembled composite floor slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810176542.2A CN108301546B (en) | 2018-03-03 | 2018-03-03 | Assembled large-module superposed beam plate structure with plane truss temporary support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810176542.2A CN108301546B (en) | 2018-03-03 | 2018-03-03 | Assembled large-module superposed beam plate structure with plane truss temporary support |
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| Publication Number | Publication Date |
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| CN108301546A CN108301546A (en) | 2018-07-20 |
| CN108301546B true CN108301546B (en) | 2020-06-19 |
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| CN201810176542.2A Expired - Fee Related CN108301546B (en) | 2018-03-03 | 2018-03-03 | Assembled large-module superposed beam plate structure with plane truss temporary support |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190905A (en) * | 2017-07-14 | 2017-09-22 | 北京善筑科技股份有限公司 | Light gauge cold-formed steel shape integration beam slab and preparation method thereof |
| CN109372097B (en) * | 2018-08-20 | 2023-10-20 | 筑友智造智能科技有限公司 | Assembled concrete truss building structure |
| CN108999326A (en) * | 2018-08-30 | 2018-12-14 | 天津大学建筑设计研究院 | Light steel grating concrete folding plate |
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| CN1737279A (en) * | 2005-09-09 | 2006-02-22 | 北京工业大学 | Method for making built-in eccentric supporting steel truss concrete combined barrel and the barrel |
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| CN107355037A (en) * | 2017-07-25 | 2017-11-17 | 中城投集团第六工程局有限公司 | Assembling type steel structure builds self-bearing type steel truss form bracing system and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032829A (en) * | 2014-03-20 | 2014-09-10 | 北京工业大学 | Modularized high-rise assembled steel structure pre-stressed eccentric support system |
| CN106088434A (en) * | 2016-08-25 | 2016-11-09 | 中冶建筑研究总院有限公司 | A kind of assembling type steel structure overlapped hollow floor system and construction method thereof |
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2018
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737279A (en) * | 2005-09-09 | 2006-02-22 | 北京工业大学 | Method for making built-in eccentric supporting steel truss concrete combined barrel and the barrel |
| CN103031952A (en) * | 2012-12-27 | 2013-04-10 | 沈阳易筑建材经销有限公司 | Manufacturing method of fabricated support-free prefabricated ribbed light superposed floor slab |
| CN205531315U (en) * | 2016-01-21 | 2016-08-31 | 中建钢构有限公司 | Can dismantle steel bar truss building carrier plate support system |
| CN106592965A (en) * | 2016-12-26 | 2017-04-26 | 中建四局第六建筑工程有限公司 | Quick support system of high-rise steel structure house composite floor slab |
| CN107355037A (en) * | 2017-07-25 | 2017-11-17 | 中城投集团第六工程局有限公司 | Assembling type steel structure builds self-bearing type steel truss form bracing system and construction method |
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| CN108301546A (en) | 2018-07-20 |
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