CN111734030A - Mounting construction method for prefabricated building laminated slab - Google Patents
Mounting construction method for prefabricated building laminated slab Download PDFInfo
- Publication number
- CN111734030A CN111734030A CN202010642176.2A CN202010642176A CN111734030A CN 111734030 A CN111734030 A CN 111734030A CN 202010642176 A CN202010642176 A CN 202010642176A CN 111734030 A CN111734030 A CN 111734030A
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- reinforcing steel
- steel bars
- laminated slab
- bar
- upper reinforcing
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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
- E04B5/18—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
- E04B5/19—Floor 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
Abstract
The invention relates to the technical field of building construction, in particular to an installation and construction method of an assembled building composite slab, which comprises the following steps: the method comprises the following steps: binding beam reinforcing steel bars, and temporarily fixing first upper reinforcing steel bars of the beam on a first side of the upper part of the beam; step two: hoisting a second laminated slab on the second side of the upper part of the beam, wherein the first side and the second side are respectively positioned on the two sides of the beam; step three: restoring the temporarily fixed first upper reinforcing steel bars and then fixing and binding the restored first upper reinforcing steel bars; because the first upper steel bar and the second laminated slab are positioned on different sides of the upper part of the beam, position conflict does not exist when the second laminated slab is hoisted, and the anchoring steel bar of the second laminated slab does not need to be bent, so that the tensile capacity of the anchoring steel bar is not influenced, and the structural quality after installation is ensured; and set up first upper portion reinforcing bar and carried out interim fixed for the closed whole that forms of roof beam reinforcing bar has avoided destroying the roof beam reinforcing bar at the in-process of installation second superimposed sheet, avoids increasing construction cost, has improved the efficiency of construction.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an installation and construction method of a fabricated building composite slab.
Background
The problem of conflict between the positions of the anchoring reinforcing steel bars of the laminated slab and the reinforcing steel bars on the upper part of the beam during hoisting of the existing domestic laminated slab mainly adopts the following two schemes:
the first scheme is as follows: and (3) bending the anchoring steel bars anchored in the beam upwards by 90 degrees before the composite slab is hoisted, and recovering the steel bars after hoisting is finished.
Scheme II: and binding the rest steel bars of the beam except the upper steel bar, and finishing the binding of the upper steel bar of the beam after the hoisting of the laminated slab is finished.
However, both of the above solutions have problems:
the first scheme is as follows: the anchoring reinforcing steel bar is bent twice, so that the tensile capacity of the anchoring reinforcing steel bar is reduced, and the structural quality is influenced.
Scheme II: when the beam reinforcing steel bars are bound, the reinforcing steel bars on the upper part of the beam cannot be integrally closed, the beam reinforcing steel bars are integrally unstable, the beam reinforcing steel bars are easy to damage in the hoisting process of the laminated slab, and the construction efficiency is reduced and the construction cost is increased by repairing the beam reinforcing steel bars; the upper portion reinforcing bar of back beam has curved anchor after the superimposed sheet hoist and mount is accomplished, ties up roof beam upper portion L type reinforcing bar again after the superimposed sheet installation, is difficult to set up to target in place, and the construction degree of difficulty is big.
Disclosure of Invention
The invention aims to: aiming at the position conflict between the anchoring reinforcing steel bars of the laminated slab and the upper reinforcing steel bars of the beam during the hoisting of the laminated slab in the prior art, the tensile capacity of the anchoring reinforcing steel bars is reduced by adopting a mode of bending the anchoring reinforcing steel bars to avoid the position conflict, the upper reinforcing steel bars of the beam are not bound during the binding of the upper reinforcing steel bars of the beam, the whole beam reinforcing steel bars are unstable, and the beam reinforcing steel bars are easy to damage in the hoisting process of the laminated slab, so that the construction efficiency is reduced, the repair cost is increased, and the assembly type house building laminated slab installation and construction method is provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
a mounting and construction method of a fabricated building composite slab comprises the following steps:
the method comprises the following steps: binding beam reinforcing steel bars, and temporarily fixing first upper reinforcing steel bars of the beam on a first side of the upper part of the beam;
step two: hoisting a second laminated slab on a second side of the upper part of the beam, wherein the first side and the second side are respectively positioned on two sides of the beam;
step three: and restoring the temporarily fixed first upper reinforcing steel bars and then fixing and binding the first upper reinforcing steel bars.
When the laminated slab is required to be arranged on only one side of the beam, the method for installing and constructing the assembled building laminated slab has the advantages that the first upper steel bars and the second laminated slab are positioned on different sides of the upper part of the beam, so that position conflict does not exist when the second laminated slab is hoisted, the anchoring steel bars of the second laminated slab do not need to be bent, the tensile capacity of the anchoring steel bars is not influenced, and the structure quality after installation is ensured; and set up first upper portion reinforcing bar and carried out interim fixed for the closed whole that forms of roof beam reinforcing bar has avoided installing the in-process of second superimposed sheet destroys the roof beam reinforcing bar, avoids increasing construction cost, has improved the efficiency of construction, has shortened the time limit for a project.
Firstly, a mode of temporarily fixing the first upper reinforcing steel bars is adopted, so that the beam reinforcing steel bars are closed to form a whole, the second laminated slab is convenient to install and can be temporarily fixed, and excessive time is not needed; and then, after the second laminated slab is installed in place, the first upper steel bars are restored and fixedly bound to form a stable structure.
As a preferred embodiment of the present invention, the first step further comprises: temporarily fixing a second upper reinforcing steel bar of the beam to a first side of the upper part of the beam;
the third step can be replaced by: removing the first upper reinforcing steel bars and the second upper reinforcing steel bars, temporarily fixing the first upper reinforcing steel bars to the second side of the upper part of the beam, and fixedly binding the second upper reinforcing steel bars to the second side of the upper part of the beam;
further comprising:
step four: hoisting a first laminated slab on a first side of the upper part of the beam;
step five: and removing the first upper reinforcing steel bar, and fixedly binding the first upper reinforcing steel bar on the first side of the upper part of the beam.
When the laminated slabs are arranged on the two sides of the beam, the mounting construction method of the prefabricated building laminated slab comprises the steps of firstly mounting the first upper reinforcing steel bar and the second upper reinforcing steel bar on the first side of the upper portion of the beam, conveniently mounting the second laminated slab on the second side of the upper portion of the beam, then moving the first upper reinforcing steel bar and the second upper reinforcing steel bar to the second side of the upper portion of the beam, conveniently mounting the first laminated slab on the first side of the upper portion of the beam, avoiding position conflict, and moving the first upper reinforcing steel bar to the first side of the upper portion of the beam after mounting.
Firstly, a mode of temporarily fixing a first upper reinforcing steel bar and a second upper reinforcing steel bar is adopted, so that a beam reinforcing steel bar is closed to form a whole, the second laminated slab is convenient to install and only needs to be temporarily fixed, excessive time is not needed, and the first upper reinforcing steel bar and the second upper reinforcing steel bar are convenient to disassemble when the first laminated slab is subsequently installed; and after the first laminated slab and the second laminated slab are installed in place, the first upper reinforcing steel bars and the second upper reinforcing steel bars are fixedly bound to form a stable structure.
As a preferable aspect of the present invention, the first step further includes providing a stirrup hook at a first side of the bottom or upper portion of the beam. In order to avoid position conflict, the stirrup hook is installed at a position avoiding the laminated slab.
As a preferable aspect of the present invention, the first step further includes providing a stirrup hook at the bottom of the beam.
The stirrup hook function is to improve the anchoring capability and avoid anchoring damage. The hook function of the end of the steel bar is the anchoring of the end of the steel bar. When the reinforcing bar is extended into the support or the upper reinforcing bar bearing negative bending moment in the continuous beam is cut off in the midspan, a length (anchoring length) of the extended reinforcing bar is required to enable the reinforcing bar to bear required tensile force, the tensile reinforcing bar is required to have enough anchoring length to accumulate enough cohesive force, otherwise, anchoring damage can occur, and the tail end of the tensile reinforcing bar is made into a bent hook to increase the anchoring length so as to improve the anchoring capability.
In a preferred embodiment of the present invention, the first upper reinforcing bar and the second upper reinforcing bar are corner bars.
The angle bars are reinforcing steel bars laid at corners of the beam, and are used for dispersing and transferring load, preventing the beam from cracking and avoiding the adverse condition of stress concentration so as to damage the beam.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
when the laminated slab is required to be arranged on only one side of the beam, the method for installing and constructing the assembled building laminated slab has the advantages that the first upper steel bars and the second laminated slab are positioned on different sides of the upper part of the beam, so that position conflict does not exist when the second laminated slab is hoisted, the anchoring steel bars of the second laminated slab do not need to be bent, the tensile capacity of the anchoring steel bars is not influenced, and the structure quality after installation is ensured; the first upper reinforcing steel bars are arranged for temporary fixing, so that the beam reinforcing steel bars are closed to form a whole, the beam reinforcing steel bars are prevented from being damaged in the process of installing the second laminated slab, the construction cost is prevented from being increased, the construction efficiency is improved, and the construction period is shortened;
when the laminated slabs are arranged on the two sides of the beam, the mounting construction method of the prefabricated building laminated slab comprises the steps of firstly mounting the first upper reinforcing steel bar and the second upper reinforcing steel bar on the first side of the upper portion of the beam, conveniently mounting the second laminated slab on the second side of the upper portion of the beam, then moving the first upper reinforcing steel bar and the second upper reinforcing steel bar to the second side of the upper portion of the beam, conveniently mounting the first laminated slab on the first side of the upper portion of the beam, avoiding position conflict, and moving the first upper reinforcing steel bar to the first side of the upper portion of the beam after mounting.
Drawings
Fig. 1 is a schematic view of the structure of the present invention in which a laminated slab is provided only on one side of a beam.
Fig. 2 is a schematic structural view of the beam of the present invention with laminated slabs on both sides.
FIG. 3 is a schematic diagram of step one of example 2.
FIG. 4 is a schematic diagram of step two of example 2.
FIG. 5 is a schematic diagram of step three in example 2.
FIG. 6 is a diagram showing the fourth step in example 2.
FIG. 7 is a schematic diagram of step five in example 2.
Icon: 1-a beam; 21-a first superimposed sheet; 22-a second superimposed sheet; 31-a first upper rebar; 32-a second upper rebar; 4-anchoring the steel bar; 5-stirrup hook.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1, a method for installing and constructing a composite slab of a prefabricated building construction, when the composite slab is required to be arranged on only one side of a beam 1, comprises the following steps:
the method comprises the following steps: binding the reinforcing steel bars of the beam 1, temporarily fixing the first upper reinforcing steel bars 31 of the beam 1 on the first side of the upper part of the beam 1, and arranging stirrup hooks 5 at the bottom of the beam 1 or on the first side of the upper part of the beam 1;
step two: hoisting a second laminated slab 22 on a second side of the upper part of the beam 1, wherein the first side and the second side are respectively positioned on two sides of the beam 1;
step three: and restoring the temporarily fixed first upper reinforcing steel bars 31 and then fixing and binding.
The first upper reinforcing bars 31 are angle bars.
Because the first upper steel bars 31 and the second laminated slab 22 are positioned on different sides of the upper part of the beam 1, when the second laminated slab 22 is hoisted, position conflict does not exist, the anchoring steel bars 4 of the second laminated slab 22 do not need to be bent, the tensile capacity of the anchoring steel bars 4 is not influenced, and the structural quality after installation is ensured; and set up first upper portion reinforcing bar 31 and carry out interim fixed for the closed whole that forms of roof beam 1 reinforcing bar has avoided installing the in-process of second superimposed sheet 22 destroys roof beam 1 reinforcing bar, avoids increasing construction cost.
Example 2
As shown in fig. 2 to 7, a method for installing and constructing a composite slab of a prefabricated building construction, when the composite slab is arranged on both sides of a beam 1, comprises the following steps:
the method comprises the following steps: temporarily fixing a first upper reinforcing steel bar 31 and a second upper reinforcing steel bar 32 of the beam 1 on a first side of the upper part of the beam 1, and arranging a stirrup hook 5 at the bottom of the beam 1;
step two: hoisting a second laminated slab 22 on a second side of the upper part of the beam 1, wherein the first side and the second side are respectively positioned on two sides of the beam 1;
step three: removing the first upper reinforcing bars 31 and the second upper reinforcing bars 32, temporarily fixing the first upper reinforcing bars 31 to the second side of the upper portion of the girder 1, and fixedly binding the second upper reinforcing bars 32 to the second side of the upper portion of the girder 1;
step four: hoisting a first laminated slab 21 on a first side of the upper part of the beam 1;
step five: the first upper reinforcement 31 is removed and fixedly bound to the first side of the upper part of the beam 1.
The first upper reinforcing bar 31 and the second upper reinforcing bar 32 are angle bars.
Will first upper portion reinforcing bar 31 with second upper portion reinforcing bar 32 installs in the first side on 1 upper portion of roof beam, is convenient for install at the second side on 1 upper portion of roof beam second superimposed sheet 22 will again first upper portion reinforcing bar 31 with second upper portion reinforcing bar 32 moves to the second side on 1 upper portion of roof beam, is convenient for install at the first side on 1 upper portion of roof beam first superimposed sheet 21 avoids the position conflict, will again after the installation first upper portion reinforcing bar 31 moves to the first side on 1 upper portion of roof beam, so when the superimposed sheet is installed to the both sides of roof beam 1, all can not take place the position conflict with 1 reinforcing bar of roof beam, also need not bend anchor reinforcing bar 4 on the superimposed sheet, simple to operate moreover, it is efficient.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The method for installing and constructing the composite slab of the prefabricated building is characterized by comprising the following steps of:
the method comprises the following steps: binding reinforcing steel bars of the beam (1), and temporarily fixing first upper reinforcing steel bars (31) of the beam (1) on a first side of the upper part of the beam (1);
step two: hoisting a second laminated slab (22) on a second side of the upper part of the beam (1), wherein the first side and the second side are respectively positioned on two sides of the beam (1);
step three: and restoring the temporarily fixed first upper reinforcing steel bars (31) and then fixing and binding.
2. The prefabricated building composite slab installing and constructing method as claimed in claim 1, wherein the first step further comprises: temporarily fixing a second upper reinforcing steel bar (32) of the beam (1) to a first side of the upper part of the beam (1);
the third step can be replaced by: removing the first upper reinforcing steel bar (31) and the second upper reinforcing steel bar (32), temporarily fixing the first upper reinforcing steel bar (31) on the second side of the upper part of the beam (1), and fixedly binding the second upper reinforcing steel bar (32) on the second side of the upper part of the beam (1);
further comprising:
step four: hoisting a first laminated slab (21) on a first side of the upper part of the beam (1);
step five: and (3) removing the first upper reinforcing steel bars (31), and fixedly binding the first upper reinforcing steel bars to the first side of the upper part of the beam (1).
3. A prefabricated building composite slab installation and construction method according to claim 1, wherein the first step further comprises providing a stirrup hook (5) at the bottom of the beam (1) or at a first side of the upper part of the beam (1).
4. The prefabricated building composite slab installing and constructing method as claimed in claim 2, wherein the first step further comprises the step of arranging stirrup hooks (5) at the bottoms of the beams (1).
5. The prefabricated building composite slab installing and constructing method according to claim 2, wherein the first upper reinforcing steel bar (31) and the second upper reinforcing steel bar (32) are angle bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010642176.2A CN111734030A (en) | 2020-07-06 | 2020-07-06 | Mounting construction method for prefabricated building laminated slab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010642176.2A CN111734030A (en) | 2020-07-06 | 2020-07-06 | Mounting construction method for prefabricated building laminated slab |
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| CN111734030A true CN111734030A (en) | 2020-10-02 |
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| CN202010642176.2A Pending CN111734030A (en) | 2020-07-06 | 2020-07-06 | Mounting construction method for prefabricated building laminated slab |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982773A (en) * | 2021-02-26 | 2021-06-18 | 重庆中科建筑科技(集团)有限公司 | Construction method of prefabricated reinforced concrete composite slab with extending reinforcing steel bars |
| CN113982282A (en) * | 2021-10-26 | 2022-01-28 | 成都建工第二建筑工程有限公司 | Beam longitudinal rib adjusting device and mounting method of prefabricated composite floor slab |
| CN114045968A (en) * | 2021-11-25 | 2022-02-15 | 中冶城市投资控股有限公司 | Construction method of laminated slab and building structure |
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| JP2001049779A (en) * | 1999-08-12 | 2001-02-20 | Toshiba Eng Co Ltd | Closing method of construction for floor opening for prefabricated equipment |
| CN106284787A (en) * | 2016-08-05 | 2017-01-04 | 成都市第四建筑工程公司 | Assembled superimposed sheet is installed and localization method |
| CN109518858A (en) * | 2019-01-03 | 2019-03-26 | 中国建筑第五工程局有限公司 | Fabricated Beam-Slab connection structure and its construction method |
| CN109707173A (en) * | 2019-02-02 | 2019-05-03 | 福建工程学院 | Assembled overlaps beam slab installation auxiliary device and its construction method |
| CN110318490A (en) * | 2019-07-18 | 2019-10-11 | 杭州建工集团有限责任公司 | A kind of construction method that superimposed sheet is connect with secondary beam and node connecting structure |
-
2020
- 2020-07-06 CN CN202010642176.2A patent/CN111734030A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001049779A (en) * | 1999-08-12 | 2001-02-20 | Toshiba Eng Co Ltd | Closing method of construction for floor opening for prefabricated equipment |
| CN106284787A (en) * | 2016-08-05 | 2017-01-04 | 成都市第四建筑工程公司 | Assembled superimposed sheet is installed and localization method |
| CN109518858A (en) * | 2019-01-03 | 2019-03-26 | 中国建筑第五工程局有限公司 | Fabricated Beam-Slab connection structure and its construction method |
| CN109707173A (en) * | 2019-02-02 | 2019-05-03 | 福建工程学院 | Assembled overlaps beam slab installation auxiliary device and its construction method |
| CN110318490A (en) * | 2019-07-18 | 2019-10-11 | 杭州建工集团有限责任公司 | A kind of construction method that superimposed sheet is connect with secondary beam and node connecting structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982773A (en) * | 2021-02-26 | 2021-06-18 | 重庆中科建筑科技(集团)有限公司 | Construction method of prefabricated reinforced concrete composite slab with extending reinforcing steel bars |
| CN113982282A (en) * | 2021-10-26 | 2022-01-28 | 成都建工第二建筑工程有限公司 | Beam longitudinal rib adjusting device and mounting method of prefabricated composite floor slab |
| CN114045968A (en) * | 2021-11-25 | 2022-02-15 | 中冶城市投资控股有限公司 | Construction method of laminated slab and building structure |
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Application publication date: 20201002 |
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