Construction method based on intercepting devices on two sides of bottom plate post-cast strip

Abstract

The invention discloses a construction method based on intercepting devices on the two sides of a bottom plate post-cast strip. The construction method comprises the steps that firstly, a water stop steel plate is positioned; secondly, the intercepting devices on the lower portion of the water stop steel plate are installed; thirdly, the water stop steel plate is fixedly installed on bottom plate reinforcing steel bars; application of a construction method for intercepting devices on two sides of a bottom plate post-cast strip is an improvement and innovation of a traditional intercepting construction process, and has the following remarkable characteristics that the intercepting devices are high in rigidity, can bear larger lateral extrusion force, are not easy to deform and expand, and can better ensure the anti-seepage use function of a post-cast strip water stop steel plate; bottom plate leakage caused by failure of the water stop steel plate is prevented, the building use function and the overall quality are improved, the forming effect is good, and the effect is improved; concrete waste and labor cost caused by mold expansion, deformation and mold explosion of the post-cast strip are reduced, and meanwhile maintenance cost caused by leakage in the later period is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of construction method of both sides of post-cast strip of floor, especially to a construction method of intercepting device based on both sides of post-cast strip of floor. BACKGROUND

[0002] The current society is developing towards industrialization, and under the promotion of various policies of the state and local governments, the construction of industrialized standard factory buildings is booming in the building market of each province. With the promotion of the construction of industrialized standard factory buildings, various quality defects come one after another, and the most prominent one is the "floor leakage problem". The leakage points of the basement floor usually have a high probability of occurring in the post-cast strip part. Generally, the basement floor of the standard factory building is relatively thick, there are many post-cast strips, and it is difficult to intercept the two sides of the post-cast strip. If the reinforcement is not firm, the problems of swelling, deformation, and even explosion of the mold may occur. Swelling, deformation, and explosion of the mold not only affect the appearance, but also make the post-cast strip not straight, and cover the water stop steel plate, which makes the original anti-leakage function of the water stop steel plate ineffective, and finally leads to the problem of floor leakage. SUMMARY

[0003] The purpose of the present application is to provide a construction method of intercepting device based on both sides of post-cast strip of floor, to solve the problem of floor leakage in the existing technique. The basement floor of the standard factory building is relatively thick, there are many post-cast strips, and it is difficult to intercept the two sides of the post-cast strip. If the reinforcement is not firm, the problems of swelling, deformation, and even explosion of the mold may occur. Swelling, deformation, and explosion of the mold not only affect the appearance, but also make the post-cast strip not straight, and cover the water stop steel plate, which makes the original anti-leakage function of the water stop steel plate ineffective, and finally leads to the problem of floor leakage.

[0004] The technical solution of the present application is a construction method of intercepting device based on both sides of post-cast strip of floor, comprising the following steps:

[0005] Step one, positioning the water stop steel plate, marking the installation position of the water stop steel plate and the width of the post-cast strip in the middle of the formed floor web and bottom reinforcement, accurately positioning and rechecking;

[0006] Step two, installing the lower intercepting device of the water stop steel plate, spot welding steel bars on the water stop steel plate lower water-facing surface as reinforcement columns, and the welding points are positioned at the width of the water stop steel plate. Then, spot welding steel bars on the reinforcement columns as reinforcement back battens. Finally, pulling the steel bar mesh at the lower part of the water stop steel plate, and using wire to bind and fix the steel bar mesh on the steel bar column and back batten;

[0007] Step three, fixing and installing the water stop steel plate on the floor steel bars, ensuring firmness, and installing the processed water stop steel plate on the floor steel bar framework, and using steel bar diagonal bracing to fix it.

[0008] Step four, install the upper intercepting device of the water stop steel plate, weld the upper steel reinforcement column of the water stop steel plate and the horizontal reinforcing back lath, and fix the tie steel bar mesh by using a binding wire.

[0009] Step five, concrete pouring, concrete pouring is performed on the bottom plate reinforcement and the bottom reinforcement.

[0010] Further, in step two, the steel reinforcement welded at the lower water-facing surface of the water stop steel plate is a Φ14 steel reinforcement, which is used as a reinforcing column, and the interval is ≤600 mm.

[0011] Further, the steel reinforcement of the reinforcing back lath is a Φ14 steel reinforcement, and the back lath interval is set to ≤500 mm according to the thickness of the post-pouring belt.

[0012] Further, the steel reinforcement is welded and fixed using a diagonal bracing, and the fixing interval is ≤600 mm.

[0013] Further, the steel reinforcement is welded and fixed using a diagonal bracing, and the fixing interval is ≤600 mm.

[0014] The application has the following advantages compared with the prior art: the application of the bottom plate post-pouring belt two-side intercepting device construction method is a modification and innovation of the traditional intercepting construction method. Compared with the traditional intercepting construction method, the method has the following obvious characteristics: the intercepting device has high rigidity and can withstand large lateral extrusion force, is not easy to deform and expand, can better guarantee the anti-leakage function of the water stop steel plate of the post-pouring belt, prevent the bottom plate from leaking due to the failure of the water stop steel plate, improve the building use function and overall quality, has good forming effect, improves the efficiency, reduces the waste of concrete and manual labor caused by the expansion, deformation and explosion of the post-pouring belt, and reduces the maintenance cost caused by leakage in the later period. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of the construction method of the application;

[0016] Figure 2 The figure is a schematic diagram of the lower intercepting device of the application;

[0017] Figure 3 The figure is a schematic diagram of the overall intercepting device of the application;

[0018] Figure 4 The figure is a schematic diagram of the overall intercepting device of the application. DETAILED DESCRIPTION

[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort are within the protection scope of the present application.

[0020] It should be noted that all the direction indications (such as up, down, left, right, front, back, and the like) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, and the like between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the direction indications also change accordingly.

[0021] In addition, the descriptions of “first”, “second”, and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first”, “second” can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of a person of ordinary skill in the art, and when the combination of the technical solutions contradicts each other or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and is also not within the protection scope of the present application.

[0022] Reference Figures 1-4In the present application, a construction method based on the interception device on both sides of the back-poured strip of the base plate comprises the following steps: step one, positioning the water-stop steel plate 3 at the middle of the formed base plate web 7 and bottom bar, marking the water-stop steel plate installation position and the back-poured strip width 8, and accurately positioning and rechecking for qualification. If unqualified, rechecking and testing are needed again before proceeding to the next step. According to the thickness of the back-poured strip, first, the Φ14 steel bar is fixed at the lower part of the water-stop steel plate by spot welding as a reinforcing column 2, with a spacing of ≤600mm per row, and the welding points are positioned at 1 / 2 of the width of the water-stop steel plate. Then, the Φ14 steel bar is used as a reinforcing back brace 4 and spot-welded on the reinforcing column, with a spacing of ≤500mm per row according to the thickness of the back-poured strip. Then, the 15mm*15mm*2mm steel mesh 1 is pulled and tied at the lower part of the water-stop steel plate and fixed on the Φ14 steel reinforcing column and back brace by using 20# binding wire. For step two, installing the interception device 5 at the lower part of the water-stop steel plate, the steel bar is spot-welded at the lower part of the water-stop steel plate as a reinforcing column, with the welding points positioned at the width of the water-stop steel plate. Then, the steel bar is used as a reinforcing back brace and spot-welded on the reinforcing column. Finally, the steel mesh is pulled and tied at the lower part of the water-stop steel plate and fixed on the steel reinforcing column and back brace by using binding wire. The Φ14 steel bar is spot-welded at the lower part of the water-stop steel plate as a reinforcing column, with a spacing of ≤600mm per row, and the welding points are positioned at 1 / 2 of the width of the water-stop steel plate. Then, the Φ14 steel bar is used as a reinforcing back brace and spot-welded on the reinforcing column, with a spacing of ≤500mm per row according to the thickness of the back-poured strip. Then, the 15mm*15mm*2mm steel mesh is pulled and tied at the lower part of the water-stop steel plate and fixed on the Φ14 steel reinforcing column and back brace by using 20# binding wire. It should be noted that all spot-welded parts, reinforcing columns and horizontal back braces, and steel mesh binding parts should be rechecked for firmness to ensure that the reinforcement is in place.

[0023] Step three, the water-stop steel plate is fixed and installed on the base plate steel bar, and after ensuring firmness, the processed water-stop steel plate is fixed and installed on the base plate steel bar framework, and is welded and fixed using steel diagonal bracing;

[0024] Step four, installing the interception device 6 at the upper part of the water-stop steel plate, welding the steel reinforcing column and horizontal reinforcing back brace at the upper part of the water-stop steel plate, and pulling and tying the steel mesh and fixing it by using binding wire. The processed water-stop steel plate is fixed and installed on the base plate steel bar framework, and is welded and fixed using steel diagonal bracing with a spacing of ≤600mm. After firm fixation, the steel reinforcing column and horizontal reinforcing back brace at the upper part of the water-stop steel plate are welded, with a column spacing of ≤600mm according to the thickness of the back-poured strip, and a horizontal back brace spacing of ≤500mm according to the thickness of the back-poured strip. Finally, the 15mm*15mm*2mm steel mesh is pulled and tied, and is fixed by using 20# binding wire. Step five, concrete pouring, pouring concrete on the base plate web and bottom bar.

[0025] In actual use, the requirements for materials are that the water stop steel plate, steel mesh, steel bar, square tube, and welding rod should be checked for product qualification certificate, factory inspection report, and incoming inspection report; the appearance of the incoming water stop steel plate, steel bar, and steel mesh should be inspected to ensure that there are no cracks, rust, oil stains, deformation, etc.; the steel mesh and water stop steel plate should meet the requirements of the construction scheme, and the strength, rigidity, and size should meet the requirements of the specification, and the appearance should be inspected for no damage or breakage.

[0026] For the selection of the specifications of the materials, the steel bar is Φ14 mm; the steel bar Φ12 mm is used as a lever precision fixed diagonal brace; the steel mesh is 15 mm*15 mm*2 mm, used for connecting the distance between the column and the back beam; the water stop steel plate is 400*3 mm; the welding rod is THJ422 / D3.2 mm; the square tube 8 is 50 mm*50 mm*3 mm; the wire 20# is used for fixing, and the hook is used for connecting the adjacent floor bar 7.

[0027] Table 1: Instruments and equipment

[0028] Serial number Main equipment name Specification model Quantity Purpose 1 Welder ZX7-315 3 sets Welding stand, backrest and water stop steel plate 2 Total station 1 set Measurement 3 Cutting machine 1 set Processing water stop steel plate, cutting steel bar and steel mesh 4 Tower crane 6013 1 set Transporting materials 5 Steel wire rope Φ16 4 pieces Hoisting materials 6 Ink pot 5 pieces Spring line

[0029] In addition to the preferred embodiments described above, the present application also has other embodiments, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor belong to the scope of the present application.

Claims

1. A construction method based on interception devices on both sides of the bottom plate post-casting strip, characterized in that: The following steps are included: Step 1: Positioning of water-stop steel plate: Mark the installation position of water-stop steel plate and the width of post-casting strip on the formed bottom plate rib and the middle of the bottom rib, accurately position and review; Step 2: Install the interception device at the bottom of the waterstop steel plate, spot weld steel bars on the water-facing surface of the lower part of the waterstop steel plate, use them as reinforcement columns, and position the welding points at the width of the waterstop steel plate. Then use steel bars as reinforcement back ribs and spot weld them on the reinforcement columns. Finally, tie the steel mesh at the bottom of the waterstop steel plate and use tying wire to tie the steel mesh to the steel columns and back ribs. Step 3: The water-stop steel plate is fixed on the bottom plate steel bar. After ensuring that it is firm, the processed water-stop steel plate is fixed on the bottom plate steel bar skeleton and fixed with steel bar diagonal bracing; Step 4: Install the interception device on the upper part of the waterstop steel plate, weld the steel bar columns and horizontal reinforcement back ribs on the upper part of the waterstop steel plate, tie the steel bar mesh with wire and fix it; Step five: pouring concrete on the bottom plate reinforcement and bottom reinforcement.

2. The construction method based on the interception device on both sides of the bottom plate post-casting strip according to claim 1 is characterized in that: In the step 2, the spot-welded steel bars on the water-facing surface of the lower portion of the waterstop steel plate are Φ14 steel bars, which are used as reinforcement columns with a spacing of ≤600mm.

3. A construction method based on interception devices on both sides of the bottom plate post-casting strip according to claim 1 or 2, characterized in that: In the steps, the steel bars for reinforcing the back ribs are Φ14 steel bars, and the back rib spacing is set to ≤500mm according to the thickness of the post-cast strip.

4. The construction method based on the interception device on both sides of the bottom plate post-casting strip according to claim 3 is characterized in that: In the step three, the steel bars are welded and fixed with diagonal braces, and the fixed spacing is ≤600mm.

5. The construction method based on the interception device on both sides of the bottom plate post-casting strip according to claim 4 is characterized in that: In the fourth step, the spacing between the upper steel bar columns and the horizontal reinforcement back rib columns of the water-stop steel plate is ≤600mm according to the thickness of the post-cast strip, and the spacing between the horizontal back ribs is ≤500mm according to the thickness of the post-cast strip.

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