CN111877630B

CN111877630B - Slope roof concrete pouring construction method

Info

Publication number: CN111877630B
Application number: CN202010737455.7A
Authority: CN
Inventors: 张远福; 董丽凤; 王博; 李海涛; 李梦龙; 张增强; 封长伟; 杨仕瑛; 陆崇柑
Original assignee: FANGCHENGGANG ZHONGYI HEAVY INDUSTRY CO LTD
Current assignee: FANGCHENGGANG ZHONGYI HEAVY INDUSTRY CO LTD
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-10-01
Anticipated expiration: 2040-07-28
Also published as: CN111877630A

Abstract

The invention discloses a slope roof concrete pouring construction method, which comprises the following construction steps: firstly, building a slope roof template; binding plate reinforcing meshes of an upper layer and a lower layer on the slope roof template; thirdly, pouring a first layer of concrete piece by piece on the sloping roof template by adopting a baffle plate with a steel bar opening, blocking the concrete from sliding off on the steel bars of the plate surface along with pouring, and drawing out the baffle plate when the concrete loses fluidity in the pouring process; and fourthly, pouring a second layer of concrete on the first layer of concrete and collecting the surface. The baffle plate can intercept the concrete from sliding downwards, so that the concrete can be sufficiently vibrated, and the compactness of the concrete is ensured; the invention has the advantages of simple manufacture, convenient construction, good use effect and wide application range.

Description

Slope roof concrete pouring construction method

Technical Field

The invention relates to a house building construction technology, in particular to a slope roof concrete pouring construction method.

Background

In traditional construction, a sloping roof (a roof with a gradient of 25-75 degrees) is generally poured and tamped by adding a layer of steel wire mesh on a sloping bottom plate or a reinforcing steel bar surface, concrete is easy to slip, loosen and segregate in a vibrating process, the density of the concrete cannot be controlled, quality defects are caused, potential seepage and leakage hazards are left, and the concrete is easy to crack under the action of gravity.

And the double-layer fixed template is adopted in the construction of the sloping roof with a larger gradient, so that the defects of high construction cost, poor forming effect, low pouring construction speed of the sloping roof, incapability of ensuring safety of construction operators and the like are caused.

In order to solve the difficult problem of concrete pouring of a large-slope roof, the prior patent technologies comprise the following steps:

1. the invention discloses a concrete pouring method for a large-gradient inclined plane with the application number of 202010117654.8, and the technical scheme is that parallel guide rails are arranged on a roof, a movable frame is used for pouring, after concrete reaches the preset strength, a template is detached, the guide rail supporting process is too complicated, pouring at corners is not facilitated, electric shock risks are caused, the vibration density is insufficient, and the problems that quick-inserting slow-pulling technical requirements are not met are solved.

2. The utility model discloses an application number is 201920611095.9's [ sloping roof pouring construction controlling means ] utility model patent, its technical scheme is the walking route of steel trough guide rail restriction steel mould through the sloping roof both sides, the steel mould is carried and is drawn the in-process compaction on the concrete, vibrator and balancing weight on the steel mould can compact the concrete and tamp, there is to prop up draw-in groove guide rail process too loaded down with trivial details and time consuming, high to workman construction technical requirement, the face has the facility of various easily blocks the rope, the density of vibrating is not enough and is not conform to the problem of inserting the technical requirement that pulls out slowly soon.

3. The utility model discloses a structure that is applicable to wide-angle pitched roof concrete and pours that application number is 201921784353.X, its technical scheme sets up steel sheet net and support reinforcing bar formation little rectangle respectively along pitched roof indulge, two horizontal directions and pours, has steel sheet net welding time spent, steel sheet net with two face separate easily form the roof weak point and the problem that the support caused the face to leak the muscle.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide the sloping roof concrete pouring construction method which is easy to install, simple in structure, economic and effective, uniform in concrete pouring and capable of ensuring the construction quality.

The slope roof concrete pouring construction method capable of solving the technical problems is different from the construction method in that the construction steps are as follows:

1. and (5) building a slope roof template.

2. And binding plate face reinforcing meshes of an upper layer and a lower layer on the sloping roof template.

3. The method comprises the steps of adopting a baffle plate with a steel bar opening to pour first layer concrete piece by piece on a sloping roof template along with pouring, intercepting concrete from sliding off on a steel bar of a plate surface, and drawing out the baffle plate when the concrete loses fluidity in the pouring process.

4. And pouring a second layer of concrete on the first layer of concrete and closing the surface.

The length of the baffle is preferably 2000 mm.

The thickness of the baffle is preferably 20 mm.

The casting height of the first layer of concrete is preferably 2/3 baffle thickness.

The invention has the beneficial effects that:

1. in the slope roof concrete pouring construction method, the baffle is supported along with pouring, can be recycled, is simple to manufacture, and saves labor, materials and pouring period.

2. In the method, the baffle plate can be used for forming the sawtoothed first layer concrete surface, so that the second layer concrete surface can be integrally cast, and the surface has no cracks.

4. In the method, the reinforcing mesh is used as a bracket, and local materials are used.

5. In the method, the baffle is drawn out when the concrete loses fluidity, and the second layer of concrete is poured before the concrete reaches initial setting, so that the plate surface is well combined and no construction joint exists.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a view taken along direction a in fig. 1.

Fig. 3 is a schematic structural view of the baffle plate in fig. 1.

And (3) identifying the figure number: 1. a baffle plate; 1-1, steel bar gaps; 1-2, a handle; 2. a first layer of concrete; 3. a steel bar net on the board surface; 4. slope roofing template.

Detailed Description

The technical solution of the present invention will be further explained with reference to the embodiments shown in the drawings.

The invention relates to a slope roof concrete pouring construction method, which comprises the following steps:

1. construction and material preparation:

and (1) preparing reinforcing steel bars.

Secondly, manufacturing a baffle plate 1 which is reserved with reinforcing steel bar openings 1-1 and has a smooth surface, wherein the length of the baffle plate 1 is 2000mm, the thickness of the baffle plate 1 is 20mm, the reinforcing steel bar openings 1-1 (long-strip-shaped notches matched with the diameters of reinforcing steel bars) are arranged at the bottom of the baffle plate 1 at equal intervals to the upper part of the plate body, and the plate body of the baffle plate 1 is provided with handles 1-2 which are symmetrical left and right, as shown in fig. 3.

2. The construction steps are as follows:

firstly, building a sloping roof template 4, wherein the left width and the right width (namely the transverse length) of the roof template 4 are 3 times of the length of the baffle 1, as shown in fig. 1 and 2.

Secondly, binding a plate face reinforcing mesh 3 with an upper layer structure and a lower layer structure in the pitched roof template 4 by using reinforcing bars, as shown in figure 1.

Thirdly, inserting front, middle and rear three baffles 1 vertical to the plate surface (the plate surface reinforcing mesh 3 is used as a support for inserting the baffles 1) on the plate surface reinforcing mesh 3 in the left sloping roof formwork 4 area at intervals along the gradient direction (namely, longitudinally), and dividing the left sloping roof formwork 4 area into four pouring areas from top to bottom (or from bottom to top), as shown in fig. 1.

And fourthly, simultaneously pouring in four pouring areas to form a first layer of concrete 2 (with the thickness of 2/3 of the baffle plate 1) in the area, forming a sawtooth shape protruding upwards between the first layers of concrete 2 in the adjacent areas due to the blocking effect of the baffle plate 1, drawing out the baffle plate 1 after the fluidity of the concrete is lost, then pouring a second layer of concrete on the first layer of concrete 2, and folding the surface (covering the plate surface reinforcing mesh 3), as shown in the figures 1 and 2.

Fifthly, repeating the steps of the third step and the fourth step in the middle pitched roof template 4 area.

Sixthly, repeating the steps of the third step and the fourth step in the area of the right pitched roof template 4 to complete the concrete pouring construction of the pitched roof.

In summary, the following steps:

the invention adopts the drawable baffle 1 along with the pouring, the drawable baffle is arranged on the steel bar mesh 3 of the plate surface to intercept the concrete from sliding off and pour the first layer of the sawtooth concrete 2 on the sloping roof, the baffle 1 is drawn out after the first layer of the concrete 2 loses the fluidity, and then the second layer of the concrete is poured on the first layer of the concrete 2 and the surface is closed.

When carrying out the slope roofing construction, with baffle 1 along with pouring the progress cartridge in the department of pouring, play the effect of interception concrete, make the concrete form the cockscomb structure, block step by step with baffle 1 on the slope direction, can lighten the landing of concrete in the vibration process greatly, loose, the segregation phenomenon.

When the second layer of concrete is poured, the concrete can be prevented from sliding downwards through the serrated first layer of concrete 2 and the roughness of the concrete aggregate.

Claims

1. The slope roof concrete pouring construction method comprises the following construction steps:

firstly, construction and material preparation:

a. preparing a reinforcing bar;

b. manufacturing a baffle (1) with reserved steel bar notches (1-1), wherein the steel bar notches (1-1) are arranged at the bottom of the baffle (1) at equal intervals to the upper part of the plate body, and the steel bar notches (1-1) are long-strip-shaped notches with the diameters matched with the diameters of the steel bars;

secondly, construction steps:

a. building a sloping roof template (4), wherein the left width and the right width of the roof template (4) are 3 times of the length of the baffle (1);

b. binding a plate face reinforcing mesh (3) with an upper layer structure and a lower layer structure by using reinforcing bars in the sloping roof template (4);

c. inserting front, middle and rear three baffles (1) vertical to the plate surface at intervals along the gradient direction on the plate surface reinforcing mesh (3) in the left slope roof template (4) area to divide the left slope roof template (4) area into four pouring areas from top to bottom;

d. pouring is simultaneously carried out in four pouring areas to form a first layer of concrete (2) in the area, due to the blocking effect of the baffles (1), a sawtooth shape protruding upwards is formed between the first layers of concrete (2) in adjacent areas, after the fluidity of the concrete is lost, the baffles (1) are pulled out, and then a second layer of concrete is poured on the first layer of concrete (2) and the surface is closed;

e. c, repeating the steps c and d in the middle slope roof template (4) area;

f. and c, repeating the steps c and d in the area of the right slope roof template (4) to finish the slope roof concrete pouring construction.

2. The method of claim 1, wherein the method comprises: the length of the baffle (1) is 2000 mm.

3. The method of claim 2, wherein the method comprises: the thickness of the baffle (1) is 20 mm.

4. The method of claim 3, wherein the method comprises: the pouring height of the first layer of concrete (2) is 2/3 of the thickness of the baffle (1).