Fabricated reinforcing tool for non-stiffened steel plate shear wall

Abstract

The utility model discloses an assembly type reinforcing tool for a non-stiffened steel plate shear wall. The assembly type reinforcing tool comprises modular channel steel and mounting bolts. Steel bar preformed holes are formed in the steel plate shear wall, and bolt holes corresponding to the steel bar preformed holes are formed in the modularized channel steel; the transverse length of the modularized channel steel is based on the modularized design of the bolt hole spacing of the modularized channel steel which is transversely arranged, and the vertical length of the modularized channel steel is based on the modularized design of the bolt hole spacing of the modularized channel steel which is vertically arranged; mounting bolts penetrate through the bolt holes and the steel bar preformed holes to fix the modular channel steel on the steel plate shear wall; bolt holes are modularly arranged according to the reserved hole spacing of steel bars in the steel plate shear wall, modular channel steel and mounting bolts are adopted in the assembly type reinforcing tool, modular design and rapid assembly are achieved, the construction period is greatly shortened, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a prefabricated reinforcement fixture for non-stiffened steel plate shear walls. Background Technology

[0002] Steel plate shear walls are seismic-resistant components commonly used in building structures. They are steel plate walls that primarily bear horizontal shear forces. Their function is to bear and transfer loads by distributing steel plates along the wall surface in the longitudinal and transverse directions of the building structure. Steel plate shear walls have high stiffness and strength, effectively resisting horizontal and vertical loads and providing excellent seismic performance. Therefore, they are widely used in multi-story and high-rise buildings with high seismic performance requirements.

[0003] Steel plate shear walls are classified into several types, including unstiffened steel plate shear walls, stiffened steel plate shear walls, buckling-restrained steel plate shear walls, composite steel plate shear walls, and slotted steel plate shear walls. Due to limitations in transportation dimensions, site conditions, and installation processes, unstiffened steel plate shear walls must be manufactured, transported, and installed separately from steel beams and columns. Unstiffened steel plate shear walls may exhibit insufficient out-of-plane stiffness, leading to deformation during manufacturing, transportation, and installation, and even significant out-of-plane deflection exceeding the allowable limits. This not only affects the performance of the steel plate shear wall but also hinders the normal implementation of related processes.

[0004] like Figure 7 As shown, in order to control the deformation of the unstiffened steel plate shear wall, strips, angle steel or channel steel are used as temporary stiffening ribs 9 during manufacturing, transportation and installation. Structural temporary stiffening ribs 9 are set on one side of the steel plate shear wall by means of intermittent fillet welds or full-length fillet welds to improve the out-of-plane stiffness of the unstiffened steel plate shear wall.

[0005] By setting temporary stiffening ribs 9, deformation during manufacturing, transportation and installation can be reduced, and the construction accuracy of steel plate shear walls can be guaranteed. However, there are some drawbacks in actual application. (1) The stiffening rib materials such as strips, angle steel or channel steel used for temporary stiffening are not easy to recycle and reuse when welded to the steel plate shear wall, which increases the project cost. (2) Steel plate shear walls of different specifications and sizes require the design of temporary stiffening ribs 9 of different specifications and their arrangement positions. The plate cutting, positioning assembly, welding and other processes are numerous, with low efficiency, which increases the project cost. Utility Model Content

[0006] To overcome the shortcomings of the existing technology, a prefabricated reinforcement fixture for non-stiffened steel plate shear walls and its construction method are provided.

[0007] The technical solution of this utility model is as follows: a prefabricated reinforcement fixture for a non-stiffened steel plate shear wall includes modular channel steel and mounting bolts; the steel plate shear wall has reserved holes for reinforcing bars, and the modular channel steel has bolt holes corresponding to the reserved holes for reinforcing bars; the transverse length of the modular channel steel is based on the modular design of the bolt hole spacing of the transversely arranged modular channel steel, and the vertical length of the modular channel steel is based on the modular design of the bolt hole spacing of the vertically arranged modular channel steel; the mounting bolts pass through the bolt holes and the reserved holes for reinforcing bars to fix the modular channel steel to the steel plate shear wall. The bolt holes are modularly set according to the reserved hole spacing for reinforcing bars on the steel plate shear wall. The prefabricated reinforcement fixture uses modular channel steel and mounting bolts, realizing modular design and rapid assembly, greatly shortening the construction cycle and improving construction efficiency.

[0008] Preferably, the transverse length module of the modular channel steel is: n*L1+(L1-50); where L1 is the spacing of the reserved holes for transverse reinforcing bars, and n is a natural number not less than 2. By determining channel steel with different modular lengths through modular design, it is possible to flexibly select and combine them according to the transverse width of the steel plate shear wall, thereby improving the flexibility and adaptability of the reinforcement scheme.

[0009] Preferably, the vertical length module of the modular channel steel is n*L2; where L2 is the spacing between the reserved holes for the vertical reinforcing bars, and n is a natural number not less than 2. By using modular design to determine channel steel with different modular lengths, it is possible to flexibly select and combine them according to the vertical height of the steel plate shear wall, thereby improving the flexibility and adaptability of the reinforcement scheme.

[0010] Preferably, a steel washer is provided between the mounting bolt and the modular channel steel.

[0011] Preferably, the surface of the steel plate shear wall has a diamond-shaped corrugated structure.

[0012] Preferably, the ends of the modular channel steel are provided with detachable connecting buckles; the detachable connecting buckles are used for splicing and fixing multiple sections of modular channel steel.

[0013] Preferably, the bolt hole is provided with an annular rubber sealing ring at its edge.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] A prefabricated reinforcement fixture for non-stiffened steel plate shear walls utilizes modular channel steel, offering a high degree of standardization. Different modular combinations can accommodate out-of-plane reinforcement of steel plate shear walls with varying dimensions. It eliminates the need for separately designed fixtures, boasts strong versatility, and features simple and efficient construction. By utilizing pre-drilled bolt holes on the steel plate shear wall, modular channel steel and bolts are used for temporary reinforcement, ensuring the out-of-plane rigidity of the steel plate shear wall and controlling deformation during fabrication, transportation, and installation. Furthermore, the modular channel steel and bolts are easy to install and disassemble, recyclable, and reusable, making them environmentally friendly and cost-effective.

[0016] Furthermore, the formula for the transverse length modulus is based on the dynamic adjustment of the spacing of the reserved holes for transverse reinforcing bars, ensuring that the length of the channel steel is adapted to steel plate shear walls of different specifications.

[0017] Furthermore, the vertical length modulus formula uses the spacing of the reserved holes for vertical reinforcing bars as a benchmark to achieve standardized design of channel steel length, simplify the production process, reduce material costs, and at the same time ensure precise fit between the tooling and the wall.

[0018] Furthermore, the steel shims disperse localized stress on the bolts, prevent surface damage to the channel steel, enhance connection stability, and extend the service life of the tooling. Simultaneously, components such as mounting bolts and steel shims can be reused, further reducing reinforcement costs.

[0019] Furthermore, the diamond-shaped corrugated steel plate shear wall increases the friction between its contact surface and devices such as steel gaskets and mounting bolts, preventing the steel gaskets and mounting bolts from loosening under vibration or load. At the same time, the diamond-shaped corrugated structure facilitates adjustment of the installation angle and adapts to uneven surfaces.

[0020] Furthermore, the detachable connecting clips enable rapid splicing of multiple channel steel sections, reducing on-site installation time; the modular design facilitates transportation and storage, reducing logistics costs.

[0021] Furthermore, the annular rubber sealing ring fills the gap at the edge of the bolt hole to prevent rainwater and dust from entering and causing bolt corrosion, while also buffering micro-displacement caused by vibration and improving durability.

[0022] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] Figure 1 This is a structural schematic diagram of a prefabricated reinforcement fixture for a non-stiffened steel plate shear wall according to the present invention;

[0025] Figure 2 This is a factory application illustration of the reinforcement tooling of the present invention. Figure 1 ;

[0026] Figure 3 This is a factory application illustration of the reinforcement tooling of the present invention. Figure 2 ;

[0027] Figure 4 This is a factory application illustration of the reinforcement tooling of the present invention. Figure 3 ;

[0028] Figure 5 This is a factory application illustration of the reinforcement tooling of the present invention. Figure 4 ;

[0029] Figure 6 This is a schematic diagram of the field application of the reinforcement tooling of the present invention. Figure 1 ;

[0030] Figure 7 This is a schematic diagram of the field application of the reinforcement tooling of the present invention. Figure 2 ;

[0031] Figure 8 This is a schematic diagram of the field application of the reinforcement tooling of the present invention. Figure 3 ;

[0032] Figure 9 This is a schematic diagram of the field application of the reinforcement tooling of the present invention. Figure 4 ;

[0033] Figure 10 This is a schematic diagram of the modular channel steel of this utility model;

[0034] Figure 11 A schematic diagram of the structure of a temporary stiffening rib in the prior art;

[0035] The annotations in the attached figures are explained as follows:

[0036] Modular channel steel 1, mounting bolts 2, steel plate shear wall 3, rebar reserved hole 31, steel washer 4, bolt hole 11, embedded steel plate 5, core tube steel frame beam 6, core tube steel frame column 7, stud 8, temporary stiffening rib 9. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0038] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] The present invention will be further described in detail below with reference to the accompanying drawings:

[0041] like Figures 1 to 11 As shown, a non-stiffened steel plate shear wall is assembled between the core tube steel beam 6 and the core tube steel column 7. The prefabricated reinforcement fixture for the non-stiffened steel plate shear wall includes a modular channel steel 1 and mounting bolts 2. The steel plate shear wall 3 has a reserved hole 31 for rebar, and the modular channel steel 1 has bolt holes 11 corresponding to the reserved hole 31 for rebar. The mounting bolts 2 pass through the bolt holes 11 and the reserved hole 31 for rebar to fix the modular channel steel 1 to the steel plate shear wall 3.

[0042] The transverse length of the modular channel steel 1 is based on the modular design of the reserved hole spacing of the transversely arranged modular channel steel 1, and the vertical length of the modular channel steel 1 is based on the modular design of the reserved hole spacing of the vertically arranged modular channel steel 1.

[0043] Example 1: Prefabricated reinforcement fixture for non-stiffened steel plate shear walls.

[0044] The reinforcement fixture in this embodiment includes a modular channel steel 1 and mounting bolts 2. Multiple sets of bolt holes 11 are opened on the web of the modular channel steel 1, which are aligned with the pre-cast steel bar reserved holes 31 on the steel plate shear wall 3.

[0045] The transverse and vertical lengths of the channel steel are designed using a modular approach based on the spacing of the pre-reserved holes: the transverse length module is: n*L1+(L1-50), where L1 is the spacing of the pre-reserved holes in the transverse direction, and n is a natural number not less than 2. 50 represents the spacing between two consecutively arranged channel steels.

[0046] The vertical length module is n*L2, where L2 is the vertical pre-reserved hole spacing, and n is a natural number not less than 2. This design allows the channel steel to flexibly adapt to different hole spacing requirements, reducing on-site cutting and improving assembly efficiency.

[0047] Furthermore, the bolt holes 11 opened on the modular channel steel 1 have a diameter that matches the reserved holes 31 of the reinforcing bars on the steel plate shear wall 3. The spacing of the bolt holes 11 is controlled between 300mm and 450mm to avoid the hole diameter being too large or too small, which would result in the installation bolts 2 being unstable.

[0048] The steel plate shear wall 3 consists of an embedded steel plate 5 and studs 8, with the studs 8 welded to the embedded steel plate 5. Several studs 8 are evenly distributed on the embedded steel plate 5. The surface of the steel plate shear wall 3 has a diamond-shaped corrugated structure. This increases the friction between the mounting bolts 2, the steel plate shear wall 3, and the steel washers 4 and the steel plate shear wall 3, thus improving the stability of the installation.

[0049] During installation, the modular channel steel 1 is attached to the surface of the steel plate shear wall 3, and fixed by mounting bolts 2 passing through bolt holes 11 and pre-drilled holes 31. A steel washer 4 is added between the mounting bolt and the modular channel steel to increase the frictional resistance between the bolt and the mounting bolt and prevent the bolt from loosening. An annular rubber sealing ring is embedded at the edge of the bolt hole 11 to prevent rainwater from seeping in and causing corrosion.

[0050] Example 2: Construction method of prefabricated reinforcement fixture for non-stiffened steel plate shear walls, including the following steps:

[0051] S1, the steel plate is leveled and cut to form the embedded steel plate 5, such as Figure 2 Then, pre-drilled holes 31 for reinforcing bars are made in the embedded steel plate 5; such as Figure 3 ;

[0052] S2, the modular channel steel 1 is cut according to the transverse length module and the vertical length module, and bolt holes 11 are opened on the modular channel steel 1.

[0053] S3, install the modular channel steel 1 onto the embedded steel plate 5, and tighten it with mounting bolts 2. Figure 4 ;

[0054] S4. Mark and weld studs 8 on the embedded steel plate 5 to form the steel plate shear wall 3. After completion, check the external dimensions of the steel plate shear wall 3. If it exceeds the error range, remove the modular channel steel 1, correct the steel plate shear wall 3, and after the correction is qualified, reinstall the modular channel steel 1. Figure 5 ;

[0055] S5, after the core tube steel frame column 7 and the lower steel frame beam 6 are installed, as follows Figure 6 3. Lifting steel plate shear wall Figure 7 ;

[0056] S6, install the upper steel beam 6 and weld the steel plate shear wall 3, such as Figure 8 ;

[0057] S7. After the weld inspection is qualified, remove the modular channel steel 1, such as Figure 9 Pack them up and ship them back to the factory for reuse.

[0058] Specifically, during the prefabrication process, the modular channel steel 1 and the steel plate shear wall 3 are designed as an integrated unit. Reinforcing bar pre-reserved holes 31 are opened on the embedded steel plate 5 at designed intervals; bolt holes 11 corresponding to the reinforcing bar pre-reserved holes 31 are opened on the modular channel steel 1. The bolt holes 11 and the reinforcing bar pre-reserved holes 31 correspond to the structural reinforcement positions of the steel plate shear wall 3, and the diameters of the bolt holes 11 and the reinforcing bar pre-reserved holes 31 match the specifications of the mounting bolts 2 or the maximum diameter of the structural reinforcing bars on the steel plate shear wall 3.

[0059] When installing the channel steel, select the channel steel with the corresponding module according to the reserved hole spacing. The length of the horizontal channel steel is calculated as n*200+150, and the length of the vertical channel steel is calculated as n*300. The modular channel steel 1 is attached and fixed by the installation bolt 2. A shim 4 is placed between the bolt 2 and the channel steel, and tightened to a torque value of 30 N·m.

[0060] During the quality inspection and correction process, after marking lines and welding studs on the embedded steel plate 5 to form the steel plate shear wall 3, the flatness of the steel plate shear wall 3 is checked. If it exceeds the tolerance, the modular channel steel 1 is removed, the steel plate shear wall 3 is re-leveled, and the modular channel steel 1 is reinstalled after it passes the test.

[0061] Finally, hoisting and welding are carried out. The steel plate shear wall 3 is leveled using sleepers and secured with steel straps to prevent displacement during transport. After the core tube steel columns 7 and the lower-level steel beams 6 are installed, the steel plate shear wall 3 is hoisted to the designed position. The upper-level steel beams 6 are then installed, and the welds between the steel plate shear wall 3 and the beams / columns are welded to complete the reinforcement. The core tube steel beams 6 include both upper and lower-level steel beams.

[0062] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified elements, components, parts, or steps, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute included by “may” is optional.

[0063] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of "a" or "an" to describe an element, component, part, or step does not imply the exclusion of other elements, components, parts, or steps.

[0064] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be considered that the inventor has not considered that subject matter as part of the disclosed inventive subject matter. All disclosed articles and references, including patent applications and publications, are incorporated herein by reference for various purposes. The term “consistent with…” used to describe a combination should include the identified elements, components, parts, or steps, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe a combination of elements, components, parts, or steps herein also contemplates embodiments that consist essentially of such elements, components, parts, or steps. The use of the term "may" here is intended to indicate that any attribute described that is included in "may" is optional.

[0065] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of "a" or "an" to describe an element, component, part, or step does not imply the exclusion of other elements, components, parts, or steps.

[0066] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be considered that the inventor has not considered that subject matter as part of the disclosed inventive subject matter.

Claims

1. A non-stiffened steel plate shear wall fabricated reinforcement tooling, characterized by: The steel plate shear wall (3) is provided with a steel bar reserved hole (31), and the modularized channel steel (1) is provided with a bolt hole (11) corresponding to the steel bar reserved hole (31); the transverse length of the modularized channel steel (1) is designed based on the modularization of the spacing of the bolt holes (11) of the transversely arranged modularized channel steel (1), and the vertical length of the modularized channel steel (1) is designed based on the modularization of the spacing of the bolt holes (11) of the vertically arranged modularized channel steel (1); the mounting bolt (2) passes through the bolt hole (11) and the steel bar reserved hole (31), and the modularized channel steel (1) is fixed on the steel plate shear wall (3).

2. The non-stiffened steel plate shear wall fabricated reinforcement tooling kit of claim 1, wherein: The transverse length module of the modularized channel steel (1) is n*L1+(L1-50); wherein L1 is the spacing of the transverse steel bar reserved hole (31), and n is a natural number and is not less than 2.

3. The non-stiffened steel plate shear wall fabricated reinforcement tooling kit of claim 1, wherein: The vertical length module of the modularized channel steel (1) is n*L2; wherein L2 is the spacing of the vertical steel bar reserved hole (31), and n is a natural number and is not less than 2.

4. The non-stiffened steel plate shear wall fabricated reinforcement tooling kit of claim 1, wherein: A steel gasket (4) is arranged between the mounting bolt (2) and the modularized channel steel (1).

5. The non-stiffened steel plate shear wall fabricated reinforcement tooling kit of claim 1, wherein: The surface of the steel plate shear wall (3) is a rhombic corrugated structure.

6. The non-stiffened steel plate shear wall fabricated reinforcement tooling kit of claim 1, wherein: The end of the modularized channel steel (1) is provided with a detachable connecting buckle; the detachable connecting buckle is used for splicing and fixing a plurality of modularized channel steels (1).

7. The non-stiffened steel plate shear wall fabricated reinforcement tooling kit of claim 1, wherein: The edge of the bolt hole (11) is provided with an annular rubber sealing ring.

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