Raft reinforcing steel bar welding supporting structure and construction method

Abstract

The invention belongs to the field of building construction, and particularly relates to a raft reinforcing steel bar welding supporting structure and a construction method.The raft reinforcing steel bar welding supporting structure comprises bottom plate reinforcing steel bars, vertical supporting reinforcing steel bars, long-direction reinforcing steel bars and short-direction reinforcing steel bars, the vertical supporting reinforcing steel bars are arranged on the upper portions of the bottom plate reinforcing steel bars in an array mode, the bottoms of the vertical supporting reinforcing steel bars are fixedly connected with the bottom plate reinforcing steel bars, the tops of the vertical supporting reinforcing steel bars are fixedly connected with the long-direction reinforcing steel bars, and the short-direction reinforcing steel bars are fixedly connected to the upper portions of the long-direction reinforcing steel bars. The structure is clear in force transmission and firm in supporting, steel bars are saved, and the flatness of the raft is guaranteed; the reinforcement cage is good in integrality, concrete pouring is convenient, and construction is convenient. And the vertical frame vertical ribs are changed from original horse stool ribs to straight steel ribs, so that the engineering quality is improved.

Description

Technical Field

[0001] The present invention relates to the field of building construction, and in particular to a raft steel bar welding support structure and a construction method. Background Art

[0002] In the prior art, raft slab reinforcement construction usually adopts traditional support methods. One common method is to use simple support structures such as horse stool reinforcement. However, this prior art has the following problems and shortcomings: On the one hand, traditional supports may lack stability. During the raft reinforcement construction process, operations such as concrete pouring generate significant lateral pressure and vibration, which can easily cause traditional supports to deform and shift, affecting the positioning accuracy of the reinforcement and the stability of the overall structure.

[0003] On the other hand, traditional supports are cumbersome to install and remove. Support structures like horse bar reinforcements typically need to be installed one by one during the rebar binding process, which consumes a lot of manpower and time. After construction is complete, removal is also difficult and may cause damage to the completed concrete structure.

[0004] Furthermore, traditional supports have limited bearing capacity. For thicker rafts or heavy loads, traditional supports may not provide sufficient support, causing the steel bars to sink or deform, affecting the quality of the project.

[0005] Therefore, in order to solve the above problems, a raft steel bar welding support structure and a construction method are specifically proposed. Summary of the Invention

[0006] This invention addresses the aforementioned issues by specifically designing a raft slab steel bar welded support structure and construction method. This application provides a structure with clear force transmission and reliable support, conserves steel, and ensures the flatness of the raft slab. The steel bar skeleton maintains good integrity, facilitates concrete pouring, and facilitates construction. The vertical support bars are replaced with straight bars instead of horse-stool bars, improving the quality of the project.

[0007] To achieve the above-mentioned objectives, the present invention provides a raft slab steel bar welded support structure, comprising: bottom plate steel bars, vertical support steel bars, long steel bars and short steel bars, the bottom plate steel bars are laid on the construction site, the vertical support steel bar array is arranged on the upper part of the bottom plate steel bars and the bottom is fixedly connected to the bottom plate steel bars, the top of the vertical support steel bars is fixedly connected to the long steel bars, and the short steel bars are fixedly connected above the long steel bars.

[0008] Through the above method, a rigid support system is formed by array welding of vertical support steel bars and bottom plate steel bars, so that the load is directly transferred to the bottom steel bars through the welding nodes, avoiding the risk of displacement of traditional horse stool bars due to loose binding. At the same time, the cross welding of long and short steel bars further strengthens the integrity of the skeleton, which can effectively resist the lateral pressure and vibration during concrete pouring and ensure the accurate spacing between steel bar layers. The height of the vertical support steel bars is adjustable and can be adapted to different raft slab thicknesses; the modular design of the long and short steel bars supports flexible arrangement and is suitable for heavy-load, large-span or special-shaped raft slab construction scenarios, with wide engineering applicability.

[0009] Furthermore, the longitudinal steel bars include preset steel bars and pulling steel bars, the upper part of the vertical supporting steel bars is fixedly connected with the preset steel bars, the pulling steel bars are arranged between the preset steel bars, and the pulling steel bars are connected to the lower part of the short steel bars.

[0010] Through the above method, steel bar welding is used to replace the traditional independent support frame (such as horse stool reinforcement), and vertical support steel bars and preset steel bars are used as the main structure, which reduces the use of additional supporting components and saves steel bar usage.

[0011] Furthermore, the bottom plate reinforcement includes transverse reinforcement and vertical reinforcement, and the transverse reinforcement and vertical reinforcement are arranged in a grid shape, and the intersections of the transverse reinforcement and the vertical reinforcement are fixedly connected to each other.

[0012] The present application also discloses a construction method of a raft steel bar welding support structure, which specifically comprises the following steps: Step 1: Lay the bottom plate steel bars, and then weld the vertical support steel bars to the bottom plate steel bars; Step 2: Laying the preset steel bars and fixing the preset steel bars on the top of the vertical support steel bars by welding; Step 3: tying a short steel bar at the end of the preset steel bar, arranging a plurality of pulling steel bars between the preset steel bars, and tying one end of the pulling steel bar to the lower part of the short steel bar; Step 4: evenly laying the short steel bars on top of the preset steel bars and tying them at the intersections of the steel bars; Step 5: Hook up the other end of the pulling steel bar and tie it to the lower part of the short steel bar.

[0013] This method combines welding and tying to create a rebar skeleton. Key joints are secured with welding, while the remaining areas are secured with quick tying, ensuring both structural strength and construction flexibility. A secondary tying inspection mechanism for the tensioned rebar further ensures connection reliability, reduces the risk of human error, achieves standardized construction, and addresses the uncontrollable quality issues of traditional supports.

[0014] Furthermore, in step one, the bottom plate reinforcement includes transverse reinforcement and vertical reinforcement, and the transverse reinforcement and vertical reinforcement are laid in a grid shape.

[0015] Furthermore, in step 1, the vertical support steel bars are welded to the bottom plate steel bars at intervals of 1200 x 1200 mm. The uniform welding of the vertical support steel bars at intervals of 1200 x 1200 mm, combined with the gridded bottom plate steel bars, forms a distributed force system. The support point density and load-bearing capacity are adapted to the raft slab thickness and load requirements, preventing the steel bar layer from sinking under pressure.

[0016] Furthermore, in step five, after the pulling steel bars are hooked, the intersections of the preset steel bars, the pulling steel bars and the short steel bars are tied securely.

[0017] Furthermore, the vertical supporting steel bars are welded at the intersection of the horizontal bars and the vertical bars.

[0018] Furthermore, in step 5, after the lifting bar is hooked up, the initial binding points between the lifting bar and the short bars need to be checked to ensure they are secure. This secondary binding inspection mechanism further ensures connection reliability, reduces the risk of human error, and achieves standardized construction.

[0019] In summary, the raft steel bar welded support structure of the present invention has the following advantages and beneficial technical effects: 1. The present invention's welded raft reinforcement support structure forms a rigid support system by welding vertical support reinforcements to the bottom slab reinforcements in an array. This allows the load to be directly transferred to the underlying reinforcements through the welded joints, avoiding the risk of displacement caused by loose binding of traditional horse stool reinforcements. Furthermore, the cross-welding of the long and short reinforcements further strengthens the integrity of the framework, effectively resisting lateral pressure and vibration during concrete pouring and ensuring precise spacing between reinforcement layers. 2. The raft slab steel bar welded support structure of the present invention provides a structure with clear force transmission and reliable support, saves steel bars, and ensures the flatness of the raft slab; the steel bar skeleton has good integrity, facilitates concrete pouring, and is easy to construct. The vertical frame bars are changed from the original horse stool bars to straight steel bars, which improves the quality of the project; 3. The construction method of the raft steel bar welding support structure of the present invention presets the "first tie and then hook" operation of the steel bars and the pulling steel bars, which realizes the rapid positioning and flexible adjustment of the short-direction steel bars, saves labor time, and does not require additional support materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which: Figure 1This is a schematic diagram of the effect of the raft steel bar welding support structure after the step 5 forming of the construction of the present invention; Figure 2 This is a schematic diagram showing the effect of step 1 in the construction of a raft steel bar welding support structure according to the present invention; Figure 3 This is a schematic diagram showing the effect of step 2 in the construction of a raft steel bar welding support structure according to the present invention; Figure 4 This is a schematic diagram showing the effects of steps three and four in the construction of a raft steel bar welding support structure according to the present invention; Figure 5 The present invention is a side view of the construction of a raft steel bar welding support structure, which is a step three and a step four.

[0021] The reference numerals in the accompanying drawings are: 1-Bottom plate reinforcement; 11-Horizontal reinforcement; 12-Vertical reinforcement; 2-Vertical support reinforcement; 3-Long-direction reinforcement; 31-Pre-set reinforcement; 32-Lifting reinforcement; 4-Short-direction reinforcement. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the implementation of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions; the embodiments described are part of the embodiments of the present invention, not all of the embodiments; the embodiments and directional terms described below with reference to the drawings are exemplary and intended to be used to explain the present invention, and cannot be understood as limitations on the present invention; based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The parts and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. The embodiments of the present invention are described in detail below in conjunction with the drawings: like Figure 4 As shown, it includes: bottom plate steel bars 1, vertical supporting steel bars 2, long steel bars 3 and short steel bars 4. The bottom plate steel bars 1 are laid on the construction site. The vertical supporting steel bars 2 are arranged in an array on the upper part of the bottom plate steel bars 1, and the bottom of the supporting steel bars 2 is fixedly connected to the bottom plate steel bars 1 by welding. The top of the vertical supporting steel bars 2 is fixedly connected to the long steel bars 3 by welding, and the short steel bars 4 are fixedly connected above the long steel bars 3.

[0023] By welding the vertical support steel bars with the bottom plate steel bars in an array, a rigid support system is formed, allowing the load to be directly transferred to the bottom steel bars through the welded nodes, avoiding the risk of displacement of traditional horse stool bars due to loose binding. At the same time, the cross-welding of the long and short steel bars further strengthens the integrity of the skeleton, effectively resisting the lateral pressure and vibration during concrete pouring, and ensuring accurate spacing between steel bar layers. The height of the vertical support steel bars is adjustable to accommodate different raft slab thicknesses; the modular design of the long and short steel bars supports flexible arrangement, making it suitable for heavy-load, large-span or special-shaped raft slab construction scenarios and has a wide range of engineering applicability.

[0024] like Figure 4 As shown, the long steel bars 3 include preset steel bars 31 and pulling steel bars 32. The upper part of the vertical supporting steel bars 2 is fixedly connected with the preset steel bars 31 by welding. Several pulling steel bars 32 are arranged between the preset steel bars 31. The pulling steel bars 32 are connected to the lower part of the short steel bars 4. The pulling steel bars 32 and the preset steel bars 31 are located in the same horizontal plane. The pulling steel bars 32 and the preset steel bars 31 are both located at the lower part of the short steel bars 4.

[0025] like Figure 4 As shown, the bottom plate reinforcement 1 includes transverse reinforcement 11 and vertical reinforcement 12. The transverse reinforcement 11 and the vertical reinforcement 12 are laid out in a grid shape, and the intersections of the transverse reinforcement 11 and the vertical reinforcement 12 are fixedly connected to each other by welding.

[0026] like Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, the construction method of a raft steel bar welding support structure of the present invention specifically comprises the following steps: Step 1: Lay the bottom plate steel bars 1, and then weld the vertical support steel bars 2 to the bottom plate steel bars 1; Step 2: Lay the preset steel bars 31 and fix the preset steel bars 31 on the top of the vertical support steel bars 2 by welding; several preset steel bars 31 need to maintain the same horizontal height.

[0027] Step 3: Tie a short steel bar 4 to the end of the preset steel bar 31, set multiple pulling steel bars 32 between the preset steel bars 31, and tie one end of the pulling steel bar 32 to the lower part of the short steel bar 4; Step 4: Evenly lay short steel bars 4 on top of the preset steel bars 31 and tie them at the intersections of the steel bars; Step 5: Hook up the other end of the pulling steel bar 32 and tie it to the lower part of the short steel bar 4.

[0028] This approach not only changes the vertical reinforcement from the original horse stool reinforcement to straight bars, but also reduces the reinforcement in the upper part of the raft slab. The short bars here are located below the long bars, serving as both the reinforcement and the short stress-bearing bars in the original position. The protective layer is reduced by one long bar diameter.

[0029] like Figure 1 As shown, in step 1, the bottom plate reinforcement 1 includes transverse reinforcement 11 and vertical reinforcement 12, and the transverse reinforcement 11 and vertical reinforcement 12 are laid in a grid shape.

[0030] like Figure 1 As shown, in step 1, the vertical support steel bars 2 are welded on the bottom plate steel bars 1 at a spacing of 1200*1200mm.

[0031] like Figure 4 As shown, in step five, after the pulling steel bar 32 is hooked, the intersections of the preset steel bars 31, the pulling steel bars 32 and the short steel bars 4 are tied securely.

[0032] The vertical supporting steel bars 2 are welded at the intersection of the horizontal bars 11 and the vertical bars 12, and the welds should be full.

[0033] like Figure 4 As shown, in step five, after the lifting steel bar 32 is hooked, it is necessary to check whether the initial binding points of the lifting steel bar 32 and the short steel bar 4 are loose, and ensure that they are firm.

[0034] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents; such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A raft steel bar welding support structure, characterized in that: include: Bottom plate steel bars (1), vertical support steel bars (2), long steel bars (3) and short steel bars (4), wherein the bottom plate steel bars (1) are laid on a construction site, the vertical support steel bars (2) are arranged in an array on the upper part of the bottom plate steel bars (1) and the bottom part is fixedly connected to the bottom plate steel bars (1), the top part of the vertical support steel bars (2) is fixedly connected to the long steel bars (3), and the short steel bars (4) are fixedly connected above the long steel bars (3).

2. A raft steel bar welding support structure according to claim 1, characterized in that: The longitudinal reinforcement (3) comprises a preset reinforcement (31) and a pulling reinforcement (32); the upper portion of the vertical support reinforcement (2) is fixedly connected to the preset reinforcement (31); the pulling reinforcement (32) is arranged between the preset reinforcement (31); and the pulling reinforcement (32) is connected to the lower portion of the short reinforcement (4).

3. A raft steel bar welding support structure according to claim 1, characterized in that: The bottom plate reinforcement (1) comprises transverse reinforcement (11) and vertical reinforcement (12), wherein the transverse reinforcement (11) and vertical reinforcement (12) are arranged in a grid shape, and intersections of the transverse reinforcement (11) and vertical reinforcement (12) are fixedly connected to each other.

4. A construction method for a raft steel bar welding support structure, characterized in that: The construction method for implementing the raft steel bar welded support structure according to claim 1 specifically comprises the following steps: Step 1: Laying the bottom plate steel bars (1), and then welding the vertical support steel bars (2) to the bottom plate steel bars (1); Step 2: Laying the preset steel bars (31), and fixing the preset steel bars (31) on the top of the vertical support steel bars (2) by welding; Step 3: tying a short steel bar (4) to the end of the preset steel bar (31), arranging a plurality of pulling steel bars (32) between the preset steel bars (31), and tying one end of the pulling steel bar (32) to the lower part of the short steel bar (4); Step 4: evenly laying the short steel bars (4) on top of the preset steel bars (31) and tying them at the intersections of the steel bars; Step 5: Hook up the other end of the pulling steel bar (32) and tie it to the lower part of the short steel bar (4).

5. The construction method of a raft steel bar welding support structure according to claim 4, characterized in that: In step one, the bottom plate reinforcement (1) comprises transverse reinforcement (11) and vertical reinforcement (12), and the transverse reinforcement (11) and vertical reinforcement (12) are laid in a grid shape.

6. The construction method of a raft steel bar welding support structure according to claim 4, characterized in that: In step 1, the vertical support steel bars (2) are welded on the bottom plate steel bars (1) at a spacing of 1200*1200 mm.

7. The construction method of a raft steel bar welding support structure according to claim 4, characterized in that: In step five, after the pulling steel bar (32) is hooked, the steel bar intersections between the preset steel bar (31), the pulling steel bar (32) and the short steel bar (4) are tied securely.

8. The construction method of a raft steel bar welding support structure according to claim 5, characterized in that: The vertical support steel bars (2) are welded at the intersection of the transverse bars (11) and the vertical bars (12).

9. The construction method of a raft steel bar welding support structure according to claim 4, characterized in that: In step five, after the pulling steel bar (32) is hooked up, it is necessary to check the initial binding points of the pulling steel bar (32) and the short steel bar (4) and ensure that they are firm.

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