CN111535489A - Method for arranging multipurpose additional steel bars of steel bar truss concrete laminated slab - Google Patents

Method for arranging multipurpose additional steel bars of steel bar truss concrete laminated slab Download PDF

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Publication number
CN111535489A
CN111535489A CN202010380142.0A CN202010380142A CN111535489A CN 111535489 A CN111535489 A CN 111535489A CN 202010380142 A CN202010380142 A CN 202010380142A CN 111535489 A CN111535489 A CN 111535489A
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CN
China
Prior art keywords
steel bars
steel bar
concrete
steel
bars
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010380142.0A
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Chinese (zh)
Inventor
孟凡林
孟祥瑞
吴永亮
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Jilin Zhongding Architectural Design Co ltd
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Jilin Zhongding Architectural Design Co ltd
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Filing date
Publication date
Application filed by Jilin Zhongding Architectural Design Co ltd filed Critical Jilin Zhongding Architectural Design Co ltd
Priority to CN202010380142.0A priority Critical patent/CN111535489A/en
Publication of CN111535489A publication Critical patent/CN111535489A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17Floor structures partly formed in situ
    • E04B5/18Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
    • E04B5/19Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members the filling members acting as self-supporting permanent forms
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17Floor structures partly formed in situ
    • E04B2005/176Floor structures partly formed in situ with peripheral anchors or supports

Abstract

A setting method of multipurpose additional steel bars of a concrete laminated slab of a steel bar truss belongs to the technical field of civil engineering, and comprises the steps of laying a bottom plate of the concrete laminated slab, manufacturing the multipurpose additional steel bars, binding single-side connecting steel bars, binding double-side connecting steel bars and pouring and maintaining concrete; meanwhile, the multipurpose additional steel bars for connecting the upper chord steel bars of the steel bar truss are bent downwards outside the lap joint area, so that the multipurpose additional steel bars are anchored at the top surface of the bottom plate of the concrete composite slab to replace a part of plate ends provided with additional steel bar sections extending into the support; therefore, the upper chord steel bar of the concrete composite slab steel bar truss plays a role in each stage of production, hoisting, installation construction and use, and the aims of saving the steel bar and reducing the construction cost are fulfilled.

Description

Method for arranging multipurpose additional steel bars of steel bar truss concrete laminated slab
Technical Field
The invention belongs to the technical field of civil engineering, relates to an assembly type building, and particularly relates to a method for setting multipurpose additional steel bars of a steel bar truss concrete composite slab.
Background
The concrete composite slab for prefabricated concrete structure building is constructed by adding a bottom plate of a steel bar truss concrete composite slab and a post-cast concrete composite layer. The upper chord steel bar of the concrete composite slab bottom plate steel bar truss is only used for increasing the rigidity of the concrete composite slab bottom plate in the production and construction stages so as to prevent the concrete composite slab bottom plate from generating overlarge deflection and cracks. When the concrete composite slab structure is designed, the upper chord steel bars of the concrete composite slab bottom plate steel bar truss are not used as negative-moment steel bars, so that the upper chord steel bars are in an idle state in the use stage of the concrete composite slab, and the waste of steel bar material resources is caused.
In order to facilitate the binding of reinforcing steel bars of structural members at the position of a support after the bottom plate of the concrete composite slab is laid, the form that the reinforcing steel bars cannot be produced when the bottom plate end of the bottom plate of the concrete composite slab is manufactured is a development trend, and in order to solve the problem that the reinforcing steel bars at the bottom of the plate end extend into the support end, an additional reinforcing steel bar section extending into the support and the waste reinforcing steel bars are arranged at the plate end.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method for arranging the multipurpose additional reinforcing steel bars of the concrete composite slab of the steel bar truss is characterized in that the multipurpose additional reinforcing steel bars for connecting the upper chord reinforcing steel bars of the steel bar truss are arranged at the position of a support, the upper chord reinforcing steel bars of the steel bar truss are used as the negative bending moment reinforcing steel bars of the support of the concrete composite slab, and the upper chord reinforcing steel bars of the steel bar truss are effectively utilized; meanwhile, the multipurpose additional steel bars for connecting the upper chord steel bars of the steel bar truss are bent downwards outside the lap joint area, so that the multipurpose additional steel bars are anchored at the top surface of the bottom plate of the concrete composite slab to replace a part of plate ends provided with additional steel bar sections extending into the support; the purpose of saving the reinforcing steel bars can be achieved.
A method for arranging multipurpose additional steel bars of a steel bar truss concrete composite slab is characterized by comprising the following steps: comprises the following steps which are sequentially carried out,
step one, laying a bottom plate of the concrete composite slab
Adopting a traditional method, supporting a template of a concrete laminated slab support member, binding a steel bar of the template, and laying a concrete laminated slab bottom plate;
step two, manufacturing the multipurpose additional reinforcing steel bar
The multipurpose additional reinforcing steel bars comprise single-side connecting reinforcing steel bars and double-side connecting reinforcing steel bars;
manufacturing a single-side connecting steel bar, wherein the anchoring length of the single-side connecting steel bar anchored into the support member is taken according to the specified requirement of concrete structure design specification GB50010, the overlapping connection length of the single-side connecting steel bar and the upper chord steel bar of the steel bar truss is taken according to the specified requirement of concrete structure design specification GB50010, the single-side connecting steel bar is bent downwards to the upper surface position of the bottom plate of the concrete laminated slab at the outer end part of the overlapping connection section, and the anchoring length of the single-side connecting steel bar is reserved along the horizontal direction and then cut off;
manufacturing two-side connecting steel bars, wherein the lapping connection length of two sides of the two-side connecting steel bars and upper chord steel bars of a steel bar truss is selected according to the specified requirements of concrete structure design Specification GB50010, the two sides of the two-side connecting steel bars are bent downwards to the upper surface position of a bottom plate of the concrete laminated slab at the outer end part of a lapping connection section, and the two sides of the two-side connecting steel bars are cut off after the anchoring length of the two-side connecting steel bars is reserved along the horizontal direction;
step three, binding the unilateral connecting steel bar
The concrete composite slabs are arranged at the positions of end support members of the concrete composite slabs or on the two sides of the support members of the concrete composite slabs, but the positions of upper chord steel bars of steel bar trusses in bottom plates of the concrete composite slabs on the two sides of the support are not coaxially corresponding, single-side connecting steel bars are adopted to be bound on one side of the support ends of the upper chord steel bars of the steel bar trusses, and the single-side connecting steel bars and the upper chord steel bars of the steel bar trusses are bound, overlapped and connected;
step four, binding the connecting steel bars on two sides
The two sides of the concrete laminated slab support members are provided with the concrete laminated slabs, the positions of upper chord steel bars of the steel bar trusses in the bottom plates of the concrete laminated slabs on the two sides of the support are coaxially corresponding, and the steel bars are connected on the two sides by adopting double-side connection steel bars and are bound, overlapped and connected with the steel bar trusses on the two sides;
step five, pouring and curing concrete
Pouring the superposed layer concrete of the concrete superposed slab, and maintaining the concrete to reach the design strength;
thus, the method for arranging the multipurpose additional steel bars of the steel bar truss concrete composite slab is completed.
Through the design scheme, the invention can bring the following beneficial effects: a method for arranging multipurpose additional steel bars of a concrete laminated slab of a steel bar truss is characterized in that the multipurpose additional steel bars are arranged, upper chord steel bars of the steel bar truss are used as negative bending moment steel bars of a support of the concrete laminated slab, and the upper chord steel bars of the steel bar truss are effectively utilized; meanwhile, the multipurpose additional steel bars for connecting the upper chord steel bars of the steel bar truss are bent downwards outside the lap joint area, so that the multipurpose additional steel bars are anchored at the top surface of the bottom plate of the concrete composite slab to replace a part of plate ends provided with additional steel bar sections extending into the support; therefore, the upper chord steel bar of the concrete composite slab steel bar truss plays a role in each stage of production, hoisting, installation construction and use, and the aims of saving the steel bar and reducing the construction cost are fulfilled.
Drawings
The invention is further described with reference to the following figures and detailed description:
fig. 1 is a schematic cross-sectional view of the bottom plate laying of a concrete slab composite in an end-support position of a concrete slab according to the present invention.
Fig. 2 is a schematic view of a single-sided connecting bar according to the present invention.
FIG. 3 is a schematic cross-sectional view of the single-sided connecting reinforcement of the present invention after it has been tied.
Fig. 4 is a schematic cross-sectional view illustrating a concrete composite slab with a single-sided connection reinforcing bar position according to the present invention.
FIG. 5 is a schematic cross-sectional view of the bottom plate of the concrete composite slab with the steel bar positions connected at two sides according to the present invention.
Fig. 6 is a schematic view of the double-sided connecting steel bar of the present invention.
FIG. 7 is a schematic cross-sectional view of the double-sided connecting reinforcement of the present invention after it is tied.
Fig. 8 is a schematic cross-sectional view illustrating a concrete composite slab with reinforcing bars connected at two sides according to the present invention.
In the figure, 1-a concrete composite slab bottom plate, 2-steel bar truss upper chord steel bars, 3-templates, 4-single-side connecting steel bars, 5-support members and 6-double-side connecting steel bars are arranged.
Detailed Description
A method for arranging multi-purpose additional steel bars of a steel bar truss concrete composite slab, as shown in figures 1 to 8, comprises the following steps which are sequentially carried out,
step one, laying a bottom plate of the concrete composite slab
As shown in fig. 1 and 5, a formwork 3 for supporting a concrete composite slab support member 5 and reinforcing steel bars thereof are bound, and a concrete composite slab base plate 1 is laid by a conventional method;
step two, manufacturing the multipurpose additional reinforcing steel bar
The multipurpose additional reinforcing steel bars comprise single-side connecting reinforcing steel bars 4 and double-side connecting reinforcing steel bars 6;
as shown in fig. 2 to 4, the unilateral connecting steel bar 4 is manufactured, the anchoring length C of the unilateral connecting steel bar 4 anchored into the support member 5 is determined according to the specified requirements of the concrete structure design specification GB50010, the lap joint length a of the unilateral connecting steel bar 4 and the steel bar truss upper chord steel bar 2 is determined according to the specified requirements of the concrete structure design specification GB50010, the unilateral connecting steel bar 4 is bent downwards to the upper surface position of the concrete laminated slab bottom plate 1 at the outer end of the lap joint section, and is cut off after the anchoring length B of the unilateral connecting steel bar 4 is left in the horizontal direction;
as shown in fig. 6 to 8, the double-side connecting steel bars 6 are manufactured, the overlapping connection length a between the two ends of the double-side connecting steel bars 6 and the upper chord steel bars 2 of the steel bar truss is determined according to the specified requirement of the specification of concrete structure design GB50010, and the length of the integral overlapping section is the sum of 2 times of the overlapping length a between the two sides of the double-side connecting steel bars 6 and the upper chord steel bars 2 of the steel bar truss and the width D of the support member 5; the two sides of the double-side connecting steel bars 6 are downwards bent to the upper surface position of the concrete laminated slab bottom plate 1 at the outer end part of the lap joint connecting section, and are cut off after the anchoring length B of the double-side connecting steel bars 6 is reserved along the horizontal direction;
step three, binding the unilateral connecting steel bar 4
As shown in fig. 3, concrete composite slabs are arranged at the positions of end support members 5 of the concrete composite slabs or at the two sides of the support members 5 of the concrete composite slabs, but the positions of upper chord steel bars 2 of the steel bar trusses in the bottom plates 1 of the concrete composite slabs at the two sides of the support are not coaxially corresponding, a single-side connecting steel bar 4 is adopted to be bound at one side of the support end of the upper chord steel bar 2 of the steel bar truss, and the single-side connecting steel bar 4 and the upper chord steel bar 2 of the steel bar truss are bound and overlapped;
step four, binding the connecting steel bars 6 on two sides
As shown in fig. 7, concrete composite slabs are arranged on both sides of a concrete composite slab support member 5, and the positions of the steel bar truss upper chord steel bars 2 in the concrete composite slab bottom plates 1 on both sides of the support are coaxially corresponding, and then the steel bar truss upper chord steel bars 2 on both sides and the steel bar truss upper chord steel bars 4 on both sides are bound, overlapped and connected by adopting the connecting steel bars 6 on both sides;
step five, pouring and curing concrete
As shown in fig. 4 and 8, the concrete of the superimposed layer of the concrete superimposed sheet is poured, and the cured concrete reaches the designed strength;
thus, the method for arranging the multipurpose additional steel bars of the steel bar truss concrete composite slab is completed.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (1)

1. A method for arranging multipurpose additional steel bars of a steel bar truss concrete composite slab is characterized by comprising the following steps: comprises the following steps which are sequentially carried out,
step one, laying a bottom plate of the concrete composite slab
Adopting a traditional method, supporting a template (3) of a concrete laminated slab support member (5) and binding a steel bar thereof, and laying a concrete laminated slab bottom plate (1);
step two, manufacturing the multipurpose additional reinforcing steel bar
The multipurpose additional reinforcing steel bars comprise single-side connecting reinforcing steel bars (4) and double-side connecting reinforcing steel bars (6);
manufacturing a single-side connecting steel bar (4), wherein the anchoring length of the single-side connecting steel bar (4) anchored into a support member (5) is taken according to the specified requirement of concrete structure design Specification GB50010, the lap joint length of the single-side connecting steel bar (4) and a steel bar truss upper chord steel bar (2) is taken according to the specified requirement of concrete structure design Specification GB50010, the single-side connecting steel bar (4) is bent downwards to the upper surface position of a concrete laminated slab bottom plate (1) at the outer end part of the lap joint section, and the single-side connecting steel bar (4) is cut off after the anchoring length is reserved along the horizontal direction;
manufacturing two-side connecting steel bars (6), wherein the lapping connection length of two sides of the two-side connecting steel bars (6) and the upper chord steel bars (2) of the steel bar truss is selected according to the specified requirement of concrete structure design Specification GB50010, the two sides of the two-side connecting steel bars (6) are bent downwards to the upper surface position of the concrete laminated slab bottom plate (1) at the outer end part of the lapping connection section, and the two sides of the two-side connecting steel bars (6) are cut off after the anchoring length of the two-side connecting steel bars (6) is reserved along;
step three, binding single side connecting steel bar (4)
The concrete composite slabs are arranged at the positions of end support members (5) of the concrete composite slabs or on the two sides of the support members (5) of the concrete composite slabs, but the positions of upper chord steel bars (2) of a steel bar truss in the bottom plates (1) of the concrete composite slabs on the two sides of the support are not coaxially corresponding, and the single-side connecting steel bars (4) are adopted to be bound on one side of the support end of the upper chord steel bars (2) of the steel bar truss, and the single-side connecting steel bars (4) and the upper chord steel bars (2) of the steel bar truss are bound and overlapped;
step four, binding the connecting steel bars at two sides (6)
Concrete laminated slabs are arranged on two sides of a concrete laminated slab support member (5), steel bar truss upper chord steel bars (2) in concrete laminated slab bottom plates (1) on two sides of the support are coaxially corresponding in position, and the steel bar truss upper chord steel bars (2) on two sides and the steel bar truss upper chord steel bars (4) on two sides are connected in a binding and overlapping mode through double-side connecting steel bars (6);
step five, pouring and curing concrete
Pouring the superposed layer concrete of the concrete superposed slab, and maintaining the concrete to reach the design strength;
thus, the method for arranging the multipurpose additional steel bars of the steel bar truss concrete composite slab is completed.
CN202010380142.0A 2020-05-08 2020-05-08 Method for arranging multipurpose additional steel bars of steel bar truss concrete laminated slab Pending CN111535489A (en)

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CN202010380142.0A CN111535489A (en) 2020-05-08 2020-05-08 Method for arranging multipurpose additional steel bars of steel bar truss concrete laminated slab

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Application Number Priority Date Filing Date Title
CN202010380142.0A CN111535489A (en) 2020-05-08 2020-05-08 Method for arranging multipurpose additional steel bars of steel bar truss concrete laminated slab

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022048326A1 (en) * 2020-09-07 2022-03-10 孖垚建筑科技(上海)有限公司 Floor slab member and manufacturing method therefor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060124825A1 (en) * 2004-11-29 2006-06-15 Victor Amend Reinforced insulated forms for constructing concrete walls and floors
CN201202181Y (en) * 2008-05-14 2009-03-04 万科企业股份有限公司 Connection structure for precast concrete board and beam and construction including the same
CN206428968U (en) * 2016-12-30 2017-08-22 青建集团股份公司 A kind of steel bar girder formula is without supporting template system
CN107386512A (en) * 2017-07-05 2017-11-24 中建八局第建设有限公司 A kind of new fabrication and installation method of Prefabricated superposed beam plate
CN208472974U (en) * 2018-06-04 2019-02-05 浙江中益建材科技有限公司 A kind of steel bar girder plate end connects steel structure girder node structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060124825A1 (en) * 2004-11-29 2006-06-15 Victor Amend Reinforced insulated forms for constructing concrete walls and floors
CN201202181Y (en) * 2008-05-14 2009-03-04 万科企业股份有限公司 Connection structure for precast concrete board and beam and construction including the same
CN206428968U (en) * 2016-12-30 2017-08-22 青建集团股份公司 A kind of steel bar girder formula is without supporting template system
CN107386512A (en) * 2017-07-05 2017-11-24 中建八局第建设有限公司 A kind of new fabrication and installation method of Prefabricated superposed beam plate
CN208472974U (en) * 2018-06-04 2019-02-05 浙江中益建材科技有限公司 A kind of steel bar girder plate end connects steel structure girder node structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022048326A1 (en) * 2020-09-07 2022-03-10 孖垚建筑科技(上海)有限公司 Floor slab member and manufacturing method therefor

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Application publication date: 20200814