Hook type prefabricated bracket

Abstract

The utility model relates to a hook type prefabricated bracket which comprises a bracket vertical plate and a bracket transverse plate. Wherein a hook is arranged at the upper end of the bracket vertical plate, and the hook is used for being connected to the top of a steel sheet pile in a hung mode; the bracket transverse plate is vertically and fixedly arranged on the side surface of the bracket vertical plate, and the bracket transverse plate is used for supporting the enclosing purlin profile steel; the hook and the corbel transverse plate are located on the two side faces of the corbel vertical plate respectively, and when the corbel vertical plate is hung on a steel sheet pile through the hook, the corbel transverse plate is horizontally arranged. The hook type prefabricated bracket provided by the utility model can be directly hung on the top of a steel sheet pile through the hook at the upper end of the bracket vertical plate, and then the enclosing purlin section steel is directly mounted on the bracket transverse plate. When the hook type prefabricated bracket is used for arranging an enclosing purlin support, on-site welding does not need to be conducted on a steel sheet pile, installation is convenient and fast, the construction progress can be accelerated, the construction quality can be improved, the hook type prefabricated bracket can be disassembled and reused after construction is completed, and the construction cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and more specifically, to a hook-type prefabricated corbel used in steel sheet pile support. Background Art

[0002] In the construction of urban pipe network trenches in China, Larsen steel sheet piles are widely used in engineering construction, especially in foundation pit retaining projects, because of their reliable quality, simple construction, no maintenance, and reusability. When steel sheet piles are used as retaining piles, if the excavation depth of the foundation pit is large, it is necessary to set up a purlin support, which is supported on the steel sheet piles by a structure called a "corbel". The conventional construction method is to weld the corbels one by one after the foundation pit is excavated, and then set the purlins on the corbels. Due to the limited operating space at the construction site and the fact that the pile surface of the steel sheet piles is easily contaminated by soil after being driven into the ground, the welding quality of the corbels is directly affected, leaving quality risks. The support constructed by the method of first driving piles and then welding the corbels may be deformed or even broken due to poor welding quality, affecting the overall quality of the support; and because the welding time of the corbels is long, when steel sheet piles are used as supports, the efficiency is low, which will affect the construction schedule of the entire project; in addition, traditional corbels cannot be reused after being cut off, resulting in material waste. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a hook-type prefabricated corbel used in steel sheet pile support, aiming to solve the problems existing in the prior art.

[0004] According to the utility model, a hook-type prefabricated corbel is provided, which comprises a corbel vertical plate and a corbel horizontal plate; wherein,

[0005] A hook is provided at the upper end of the corbel plate, and the hook is used to be hung on the top of the steel sheet pile;

[0006] The corbel horizontal plate is vertically fixed to the side of the corbel vertical plate, and the corbel horizontal plate is used to support the surrounding purlin steel;

[0007] The hook and the corbel cross plate are respectively located on two side surfaces of the corbel vertical plate, and when the corbel vertical plate is hung on the steel sheet pile through the hook, the corbel cross plate is horizontally arranged.

[0008] Preferably, a stopper is provided at one end of the corbel horizontal plate away from the corbel vertical plate, and the stopper is located on the side of the corbel horizontal plate facing the hook.

[0009] Preferably, the stopper is a long strip structure, and the length of the stopper is consistent with the length of the corbel cross plate.

[0010] Preferably, the corbel cross plate and the stop block are an integrated structure.

[0011] Preferably, a ribbed web is provided between the corbel transverse plate and the corbel vertical plate, the ribbed web is located on the side of the corbel transverse plate opposite to the stopper, and the ribbed web is respectively welded to the corbel transverse plate and the corbel vertical plate.

[0012] Preferably, the ribbed web is in the shape of a right triangle or a right trapezoid.

[0013] Preferably, the number of the ribbed webs is two, and the two ribbed webs are arranged at a preset distance.

[0014] Preferably, two hooks are provided at the upper end of the corbel upright, and the two hooks are respectively located at two ends of the corbel upright in the width direction.

[0015] Preferably, the hook and the corbel stand are an integrated structure.

[0016] Preferably, two extension plates are extended from the upper end of the corbel upright plate, and the two extension plates are bent to form the two hooks.

[0017] The hook-type prefabricated corbel provided by the utility model can be directly hung on the top of the steel sheet pile through the hook on the upper end of the corbel vertical plate, and then the surrounding purlin section steel is directly installed on the corbel horizontal plate. When the hook-type prefabricated corbel is used to set the surrounding purlin support, there is no need to perform on-site welding on the steel sheet pile, and the installation is convenient and fast, which can improve the construction progress and construction quality. Moreover, the hook-type prefabricated corbel can be disassembled and reused after the construction is completed, saving construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings.

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a hook-type prefabricated corbel according to an embodiment of the utility model is shown.

[0020] Figure 2 A schematic diagram of the front structural view of a hook-type prefabricated corbel according to an embodiment of the utility model is shown.

[0021] Figure 3 A reference schematic diagram of the use status of a hook-type prefabricated corbel according to an embodiment of the utility model is shown.

[0022] In the figure: 1. hook-type prefabricated corbel; 11. corbel vertical plate; 111. hook; 12. corbel horizontal plate; 121. stopper; 13. ribbed web; 2. steel sheet pile; 3. purlin steel. DETAILED DESCRIPTION

[0023] Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. In each of the accompanying drawings, the same elements are represented by the same or similar reference numerals. For the sake of clarity, the various parts in the accompanying drawings are not drawn to scale.

[0024] The utility model provides a hook-type prefabricated corbel, see Figures 1 to 3 The hook-type prefabricated corbel includes a corbel vertical plate 11 and a corbel horizontal plate 12; wherein, a hook 111 is provided at the upper end of the corbel vertical plate 11, and the hook 111 is used to be hung on the top of the steel sheet pile 2; the corbel horizontal plate 12 is vertically fixed to the side of the corbel vertical plate 11, and the corbel horizontal plate 12 is used to support the purlin steel 3; the hook 111 and the corbel horizontal plate 12 are respectively located on the two side surfaces of the corbel vertical plate 11, and when the corbel vertical plate 11 is hung on the steel sheet pile 2 through the hook 111, the corbel horizontal plate 12 is horizontally arranged.

[0025] Specifically, the bracket vertical plate 11 and the bracket horizontal plate 12 of the hook-type prefabricated bracket 1 are both made of steel plates and fixedly connected together by welding. The hook-type prefabricated bracket 1 can be pre-welded and can be directly hung on the top of the steel sheet pile 2 through the hook 111 according to the design requirement during construction, without on-site welding.

[0026] It is understandable that the hook 111 can be made of steel bars or steel plates bent and fixed to the corbel plate by welding. Preferably, the hook 111 and the corbel plate 11 are an integrated structure, and two hooks 111 are provided at the upper end of the corbel plate 11, and the two hooks 111 are respectively located at the two ends of the width direction of the corbel plate 11. In this embodiment, two extension plates are extended from the upper end of the corbel plate 11, and the two extension plates are bent to form two hooks 111. The hook 111 is directly made at the upper end of the corbel plate 11 by bending, which can improve the processing and manufacturing efficiency of the hook-type prefabricated corbel 1. The corbel plate 11 and the corbel cross plate 12 can be made of high-strength steel plates to improve the bearing capacity.

[0027] Furthermore, a stopper 121 is provided at one end of the corbel horizontal plate 12 away from the corbel vertical plate 11, and the stopper 121 is located on the side of the corbel horizontal plate 12 facing the hook 111. The stopper 121 is a long strip structure, and the length of the stopper 121 is consistent with the length of the corbel horizontal plate 12. In this embodiment, the lengths of the corbel vertical plate 11, the corbel horizontal plate 12 and the stopper 121 are all equal. Preferably, the corbel horizontal plate 12 and the stopper 121 are an integrated structure. In specific implementation, the corbel horizontal plate 12 and the stopper 121 can be directly processed from a rectangular steel plate by bending. Compared with welding or other fixed connection methods, the bending processing method saves time and effort, and can ensure the processing quality. The function of the stopper 121 is to limit the purlin steel 3 on the side of the corbel horizontal plate 12 away from the corbel vertical plate 11 after the purlin steel 3 is placed on the corbel horizontal plate 12, so as to prevent the purlin steel 3 from moving laterally on the corbel vertical plate 11. The distance between the inner side of the stopper 121 and the corbel vertical plate 11 is slightly larger than the width of the purlin steel 3, so that the purlin steel 3 is easy to install and will not be displaced significantly after installation due to excessive gap. In specific implementation, the distance between the inner side of the stopper 121 and the corbel vertical plate 11 can be designed to be larger than the width of the purlin steel 3 by 3-5 mm. Furthermore, a rubber gasket can be provided on the supporting surface of the corbel cross plate 12 (i.e., the side of the corbel cross plate 12 facing the hook 111), so that after the purlin steel 3 is installed, there is a greater friction between the purlin steel 3 and the corbel cross plate 12, making the installed purlin steel 3 safer and more stable.

[0028] Furthermore, in order to improve the supporting strength of the corbel horizontal plate 12, a ribbed web 13 is provided between the corbel horizontal plate 12 and the corbel vertical plate 11, the ribbed web 13 is located on the side of the corbel horizontal plate 12 opposite to the stopper 121, and the ribbed web 13 is welded to the corbel horizontal plate 12 and the corbel vertical plate 11, respectively. The ribbed web 13 is in the form of a right triangle or a right trapezoid, and the two right-angled sides of the ribbed web 13 are fixedly connected to the corbel horizontal plate 12 and the corbel vertical plate 11 by welding. In this embodiment, the number of the ribbed webs 13 is two, and the two ribbed webs 13 are arranged at a preset distance.

[0029] The hook-type prefabricated corbel provided by the utility model can be welded in a special site during production, and the welding part can be fully cleaned before welding to improve the welding quality and welding efficiency. After welding, the welding quality can be fully tested, and the unqualified welding part can be corrected according to the specific situation, avoiding various welding quality problems caused by the steel sheet pile being contaminated by soil, the limited operating space and the inconvenience of testing when the prior art adopts piling first and then welding the corbel, and can effectively avoid the phenomenon of deformation and fracture of the steel corbel. During the excavation of the foundation pit, the hook-type prefabricated corbel can be directly hung on the steel sheet pile, and then the surrounding purlin steel is installed on the prefabricated corbel, which saves the time of welding the corbel, improves the construction progress of the whole project, and improves the construction efficiency. After the construction is completed, the hook-type prefabricated corbel can be directly dismantled for reverse use, and its structure is simple, economical and applicable, cost-saving, and avoids the waste of materials caused by traditional cutting.

[0030] The steps of using the hook-type prefabricated corbels provided by the utility model for pile hanging construction are as follows: S1. Assemble and weld the hook-type prefabricated corbels: Before hanging piles, determine the corbel height and specific dimensions of each component according to the design requirements and force, and batch process the hook-type prefabricated corbels. S2. Install the hook-type prefabricated corbels: When hanging piles, first drive the Larsen steel sheet piles to ensure that the lines and height are straight, and then directly hang the hook-type prefabricated corbels on the top of the steel sheet piles according to the design requirements. The horizontal plane of the overall corbel is adjusted, and then the steel purlin is installed to ensure that it is located in the block, as shown in Figure 3. S3. Remove the hook-type prefabricated corbels after the construction is completed: After the trench construction is completed, directly remove the purlin steel in sequence, and then remove the hook-type prefabricated corbels.

[0031] In summary, the hook-type prefabricated corbel provided by the utility model can be directly hung on the top of the steel sheet pile through the hook on the upper end of the corbel vertical plate, and then the surrounding purlin steel is directly installed on the corbel horizontal plate. When using the hook-type prefabricated corbel to set the surrounding purlin support, there is no need to perform on-site welding on the steel sheet pile, and the installation is convenient and fast, which can improve the construction progress and construction quality. Moreover, the hook-type prefabricated corbel can be disassembled and reused after the construction is completed, saving construction costs.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0033] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A hook-type prefabricated corbel, characterized in that: It includes corbel vertical plate and corbel horizontal plate; among which, A hook is provided at the upper end of the corbel plate, and the hook is used to be hung on the top of the steel sheet pile; The corbel horizontal plate is vertically fixed to the side of the corbel vertical plate, and the corbel horizontal plate is used to support the surrounding purlin steel; The hook and the corbel cross plate are respectively located on two side surfaces of the corbel vertical plate, and when the corbel vertical plate is hung on the steel sheet pile through the hook, the corbel cross plate is horizontally arranged.

2. The hook-type prefabricated corbel according to claim 1, characterized in that: A stopper is provided at one end of the corbel horizontal plate away from the corbel vertical plate, and the stopper is located on a side of the corbel horizontal plate facing the hook.

3. The hook-type prefabricated corbel according to claim 2, characterized in that: The stopper is a long strip structure, and the length of the stopper is consistent with the length of the corbel cross plate.

4. The hook-type prefabricated corbel according to claim 2, characterized in that: The corbel cross plate and the stopper are an integrated structure.

5. The hook-type prefabricated corbel according to claim 2, characterized in that: A ribbed web is provided between the corbel transverse plate and the corbel vertical plate. The ribbed web is located on the side of the corbel transverse plate opposite to the stopper. The ribbed web is respectively welded to the corbel transverse plate and the corbel vertical plate.

6. The hook-type prefabricated corbel according to claim 5, characterized in that: The ribbed web is in the shape of a right triangle or a right trapezoid.

7. The hook-type prefabricated corbel according to claim 5, characterized in that: The number of the ribbed webs is two, and the two ribbed webs are spaced apart by a preset distance.

8. The hook-type prefabricated corbel according to claim 1, characterized in that: Two hooks are arranged at the upper end of the corbel upright plate, and the two hooks are respectively located at two ends of the corbel upright plate in the width direction.

9. The hook-type prefabricated corbel according to claim 8, characterized in that: The hook and the corbel stand are an integrated structure.

10. The hook-type prefabricated corbel according to claim 9, characterized in that: Two extension plates are extended from the upper end of the corbel vertical plate, and the two extension plates are bent to form the two hooks.

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