Construction method for laying steel bars on profiled steel bar truss template

Abstract

The invention relates to the technical field of building construction, in particular to a construction method for laying steel bars on a profiled steel bar truss formwork, which comprises the following steps of: S1, partitioning and segmenting construction so as to prepare materials of the profiled steel bar truss formwork and the steel bars; s2, a first construction section profiled steel bar truss formwork is installed, and during installation, the contact position of a bottom die steel plate and a steel beam is punched, and anchor studs are driven into the bottom die steel plate and the steel beam; s3, a temporary base plate is erected on a steel beam on the rear side of the first section of profiled steel bar truss formwork, transverse steel bars needing to be laid are stacked on the temporary base plate, and the transverse steel bars sequentially penetrate through the clearance position between the upper chord and the lower chord of the profiled steel bar truss and extend to the corresponding position to bind and fix the transverse upper steel bars and the transverse bottom steel bars; and S4, the steps S2 and S3 are repeated to construct the subsequent multiple sections of profiled steel bar truss formworks and the transverse steel bars. By means of the method, the number of lap joints of the transverse steel bars, the probability of damage to a bottom die steel plate and bending deformation of the transverse steel bars are reduced, and noise generated by friction is reduced.

Description

Technical Field

[0001] The invention relates to the field of building construction technology, in particular to a method for laying steel bars on a corrugated steel bar truss template. Background Art

[0002] At present, corrugated steel truss formwork is often used for factory roofs or floor slabs in the chemical field, industrial parks, electronic parks, etc. This structure does not require supporting formwork, has a fast construction speed, a high degree of assembly, and does not require the erection of full-house scaffolding. It is becoming more and more widely used.

[0003] This formwork structure is welded by bottom formwork steel plate and truss steel bar. The truss steel bar is composed of an upper chord steel bar and two lower chord steel bars to form a triangular frame. The two oblique sides of the triangle are connected by web bars to form a group. It mainly bears the longitudinal skeleton force and also acts as a horse stool bar. Since this steel truss structure is generally 100-120mm high, the clearance size is only 80-100mm except for the upper and lower chord steel bars. At this time, it is necessary to lay transverse steel bars to form a steel mesh for the roof (floor). The transverse steel bars are passed through the clearance of the upper and lower chords.

[0004] The conventional construction method is to first install the corrugated steel truss formwork, then divide the transverse steel bars into several small sections, and then pass them through the narrow steel truss clearance at a certain angle. The steel bars using this construction method are easy to break through the steel plate, and at the same time cause the steel bars to bend, which is also time-consuming and labor-intensive for the construction workers. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the present invention provides a construction method for laying steel bars on a corrugated steel bar truss template.

[0006] The present invention provides a method for laying steel bars on a corrugated steel bar truss template, comprising the following steps: S1. Construction zoning and segmentation, specifically including: zoning and segmenting the construction according to the construction work surface to facilitate the material preparation and steel bar processing of the corrugated steel bar truss formwork and steel bars, wherein the corrugated steel bar truss formwork includes welded and fixed bottom formwork steel plate, upper chord steel bars, lower chord steel bars and web bar steel bars; S2, installation of the first section of corrugated steel truss formwork, specifically including: installing the first construction section of corrugated steel truss formwork according to the sections, and during installation, drilling holes at the contact position between the bottom formwork steel plate and the steel beam and driving anchor bolts; S3, laying of transverse reinforcement, specifically including: setting up a temporary pad on the steel beam at the rear side of the first section of the corrugated steel truss formwork, stacking the transverse reinforcement to be laid on the temporary pad, and after the first section of the corrugated steel truss formwork is installed, inserting the transverse reinforcement in sequence from the clear position between the upper and lower chords of the corrugated steel truss, and tying and fixing the upper transverse reinforcement and the bottom transverse reinforcement after reaching the corresponding position; S4, construct the subsequent multi-section corrugated steel bar truss formwork and transverse steel bars, specifically including: installing the truss formwork of the second construction section in sequence according to S2, laying the transverse steel bars in accordance with S3, and then alternately constructing in sequence.

[0007] By adopting the above technical scheme, this method does not need to divide the entire transverse steel bar into several small sections, which reduces the number of transverse steel bar lap joints, saves steel and reduces costs; the transverse steel bars are connected throughout the length, the number of joints is reduced, and the quality is guaranteed; when inserting the transverse steel bars, the construction angle is slowed down to reduce the probability of damage to the bottom formwork steel plate and bending and deformation of the transverse steel bars; the laying of the corrugated truss formwork and the insertion of the transverse steel bars are carried out in a continuous operation, which speeds up the construction speed, reduces the contact with the upper chord steel bars during insertion, and reduces the noise generated by friction.

[0008] Optionally, two people are required to cooperate when inserting the transverse steel bars in S3, one person holds the steel bar and pushes it in, and the other guides the front end of the steel bar.

[0009] Optionally, long steel bars are used for transverse reinforcement to reduce the number of steel bar lap joints.

[0010] Optionally, the temporary pad is made of wood pad, steel pipe or corrugated steel bar truss plate.

[0011] In summary, the present invention includes at least one of the following beneficial technical effects: No need to divide the entire transverse steel bar into several small sections, reducing the number of transverse steel bar lap joints, saving steel and reducing costs; When inserting transverse reinforcement, the construction angle should be slowed down to reduce the possibility of damage to the bottom formwork steel plate and bending and deformation of the transverse reinforcement; The laying of the corrugated truss formwork and the insertion of the transverse steel bars are carried out in a continuous process, which speeds up the construction process, reduces the contact with the upper chord steel bars during insertion, and reduces the noise generated by friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view of a corrugated steel bar truss template according to an embodiment of the present invention.

[0013] Figure 2 It is a side view of a corrugated steel bar truss formwork according to an embodiment of the present invention.

[0014] Figure 3 It is a schematic diagram of transverse reinforcement laying according to an embodiment of the present invention.

[0015] Figure 4 It is a flow chart of a construction method for laying steel bars on a corrugated steel bar truss formwork according to an embodiment of the present invention.

[0016] Explanation of the accompanying reference numerals: 1. Bottom formwork steel plate; 2. Upper chord steel bars; 3. Lower chord steel bars; 4. Web bar steel bars; 5. Steel beam; 6. Anchor bolts; 7. Transverse steel bars; 70. Transverse upper steel bars; 71. Transverse bottom steel bars; 8. Temporary pad. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1 -Attached Figure 4 The present invention is described in further detail.

[0018] The embodiment of the present invention discloses a method for laying steel bars on a corrugated steel bar truss template. Figure 1 and Figure 2 The corrugated steel bar truss formwork includes a bottom formwork steel plate 1, an upper chord steel bar 2 is horizontally arranged above the bottom formwork steel plate 1, two lower chord steel bars 3 are parallelly arranged below the upper chord steel bar 2, the upper chord steel bar 2 and the lower chord steel bar 3 are arranged in an isosceles triangle, and a web steel bar 4 is obliquely welded between the upper chord steel bar 2 and the lower chord steel bar 3, and the web steel bar 4 is welded to the top surface of the bottom formwork steel plate 1.

[0019] Reference Figure 1 and Figure 2 A steel beam 5 for support is arranged below the bottom formwork steel plate 1, and the bottom formwork steel plate 1 is fixed to the steel beam 5 by anchor bolts 6. A transverse steel bar 7 is horizontally passed between the upper chord steel bar 2 and the lower chord steel bar 3, and the transverse steel bar 7 is perpendicular to the upper chord steel bar 2 and the lower chord steel bar 3. The transverse steel bar 7 includes an upper transverse steel bar 70 located above and a lower transverse steel bar 71 located below.

[0020] Reference Figure 3 and Figure 4 The method for laying steel bars on a corrugated steel bar truss template according to an embodiment of the present invention comprises the following steps: S1. Construction zoning and segmentation, specifically including: Divide the construction into zones and sections according to the construction work surface to facilitate the material preparation and steel bar processing of corrugated steel bar truss formwork and steel bars.

[0021] S2, installation of the first section of corrugated steel truss formwork, specifically including: installing the first construction section of corrugated steel truss formwork according to the sections, drilling holes at the contact position between the bottom formwork steel plate 1 and the steel beam 5 and driving anchor bolts 6 into the holes during installation.

[0022] S3, laying of transverse reinforcement 7, specifically including: setting up a temporary pad 8 on the steel beam 5 at the rear side of the first section of the corrugated steel truss formwork, and stacking the transverse reinforcement 7 to be laid on the temporary pad 8; when the first section of the corrugated steel truss formwork is installed, the transverse reinforcement 7 is inserted in sequence from the clear position between the upper and lower chords of the corrugated steel truss, and after extending to the corresponding position, the upper transverse reinforcement 70 and the bottom transverse reinforcement 71 are tied and fixed; two people are required to cooperate when inserting the transverse reinforcement 7, one person holds the reinforcement and pushes it in, and the other person guides at the front end of the reinforcement; long reinforcements are preferably used for the transverse reinforcement 7 to reduce the number of reinforcement lap joints; the temporary pad 8 can be made of wooden pads, steel pipes or corrugated steel truss plates according to the spacing between the steel beams 5, and it is necessary to meet the requirement of not deforming or deflecting when bearing the reinforcement stacked above.

[0023] S4, constructing subsequent multi-section corrugated steel bar truss formwork and transverse steel bars 7, specifically including: installing the truss formwork of the second construction section in sequence according to S2, laying the transverse steel bars 7 in sequence according to S3, and then performing alternating construction in sequence.

[0024] This construction method is used to divide the work area into several construction sections. After the corrugated steel truss formwork of the first construction section is laid and before the second construction section is laid, the transverse steel bars 7 placed on the steel beam 5 in advance behind the first construction section are horizontally inserted into the steel truss clearance in turn, and so on to form a flow operation.

[0025] This method does not need to divide the entire transverse steel bar 7 into several small sections, which reduces the number of lap joints of the transverse steel bar 7, saves steel and reduces costs; the transverse steel bar 7 is connected throughout the length, the number of joints is reduced, and the quality is guaranteed; when inserting the transverse steel bar 7, the construction angle is slowed down, reducing the probability of damage to the bottom formwork steel plate 1 and bending and deformation of the transverse steel bar 7; the laying of the corrugated truss formwork and the insertion of the transverse steel bar 7 are carried out in a continuous operation, which speeds up the construction speed, reduces the contact with the upper chord steel bar 2 during insertion, and reduces the noise generated by friction.

[0026] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for laying steel bars on a corrugated steel bar truss formwork, characterized in that: The following steps are involved: S1. Construction zoning and segmentation, specifically including: dividing the construction into zones and segments according to the construction work surface, so as to prepare materials and process the corrugated steel truss formwork and steel bars, wherein the corrugated steel truss formwork includes a welded bottom formwork steel plate (1), upper chord steel bars (2), lower chord steel bars (3) and web bar steel bars (4); S2, installing the first section of corrugated steel truss formwork, specifically comprising: installing the first construction section of corrugated steel truss formwork according to the sections, and during the installation, drilling holes at the contact position between the bottom formwork steel plate (1) and the steel beam (5) and driving anchor bolts (6); S3, laying of transverse reinforcement (7), specifically comprising: setting up a temporary pad (8) on the steel beam (5) at the rear side of the first section of the corrugated steel truss template, stacking the transverse reinforcement (7) to be laid on the temporary pad (8), and when the first section of the corrugated steel truss template is installed, inserting the transverse reinforcement (7) in sequence from the clear position between the upper and lower chords of the corrugated steel truss, and after extending to the corresponding position, tying and fixing the upper transverse reinforcement (70) and the bottom transverse reinforcement (71); S4, constructing subsequent multi-section corrugated steel bar truss formwork and transverse steel bars (7), specifically comprising: installing the truss formwork of the second construction section in sequence according to S2, laying the transverse steel bars (7) in sequence according to S3, and then performing alternating construction in sequence.

2. The method for laying steel bars on a corrugated steel bar truss formwork according to claim 1, characterized in that: When passing the transverse steel bar (7) through S3, two people are required to cooperate, one person holds the steel bar and pushes it in, and the other person guides the front end of the steel bar.

3. The method for laying steel bars on a corrugated steel bar truss formwork according to claim 1, characterized in that: The transverse reinforcement (7) is made of long steel bars to reduce the number of reinforcement lap joints.

4. The method for laying steel bars on a corrugated steel bar truss formwork according to claim 1, characterized in that: The temporary pad (8) is made of a wooden pad, a steel pipe or a corrugated steel bar truss plate.

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