All-steel U-shaped rib steel plate shear wall hoisting unit

Abstract

The utility model discloses an all-steel U-shaped rib steel plate shear wall hoisting unit which comprises a frame column located between floor steel beams, the floor steel beams and the frame column are provided with fishplates assisting in positioning a steel wall plate, and the fishplates are located on the inner side and the outer side of the steel wall plate. U-shaped ribs are arranged on the two sides of the surface of the steel wallboard, the U-shaped ribs are longitudinally and transversely arranged on the surface of the steel wallboard, and the U-shaped ribs located on the two sides of the steel wallboard are arranged in a staggered mode to jointly form a supporting unit for the steel wallboard. The structure has the beneficial effects that the fishplates can be used for fixing the steel wall plate in advance and assisting the steel plate wall in welding and reinforcing construction, the construction efficiency is higher, the U-shaped ribs arranged on the two sides of the steel wall plate in a staggered mode can be used for effectively enhancing the overall stability and rigidity of the structure, load distribution is more uniform, and the bearing capacity and safety of the structure can be improved easily.

Description

Technical Field

[0001] The utility model relates to the field of steel structures in construction engineering, and particularly to a hoisting unit of a full-steel U-shaped rib steel plate shear wall. Background Technique

[0002] Shear walls are important components used to enhance the seismic performance of structures in construction engineering. They are usually composed of concrete or bricks and are located longitudinally and transversely in buildings, capable of effectively resisting lateral forces caused by earthquakes or winds. Through their high strength and stiffness, shear walls can reduce the lateral displacement and vibration of buildings, protecting the structure from serious damage. In modern building designs, shear walls are often used in combination with frame structures or core tubes to jointly form the overall stability system of buildings.

[0003] Although the design of combining shear walls with frame structures or core tubes can effectively improve the seismic capacity of buildings, there are also some potential defects. Firstly, the layout and dimensions of shear walls need to be accurately calculated and arranged during the design stage, otherwise it may affect their effectiveness. Secondly, the construction requirements and construction precision of such traditional shear walls are relatively high, especially in the control of connection parts and wall quality, resulting in relatively low construction efficiency.

[0004] Therefore, providing a hoisting unit of a full-steel U-shaped rib steel plate shear wall has become an issue worthy of research. Content of the Utility Model

[0005] In order to solve the deficiencies existing in the above-mentioned prior art, the purpose of the utility model is to effectively solve the construction problems such as the fabrication, installation, and welding of super-high-rise full-steel core tube systems, and get rid of the construction constraints of traditional reinforced concrete systems or steel-concrete composite systems.

[0006] The purpose of the utility model is achieved as follows:

[0007] A hoisting unit of a full-steel U-shaped rib steel plate shear wall provided by the utility model includes frame columns located between floor steel beams. Fish plates for assisting in positioning the steel wall panels are provided on both the floor steel beams and the frame columns, and the fish plates are located on the inner and outer sides of the steel wall panels; U-shaped ribs are provided on both sides of the surface of the steel wall panel. The U-shaped ribs are arranged longitudinally and transversely on the surface of the steel wall panel, and the U-shaped ribs on both sides of the steel wall panel are staggered, jointly forming a support unit for the steel wall panel.

[0008] In some embodiments, the U-shaped ribs are formed by cold bending and pressing steel plates.

[0009] In some embodiments, the frame columns are box-shaped steel pipe columns, and the floor beams are hot-rolled and welded H-shaped steels.

[0010] In some embodiments, the U-shaped ribs located on the inner and outer sides of the steel wall panel are evenly distributed along the transverse and longitudinal directions of the steel wall panel.

[0011] In some embodiments, strip-shaped holes extending vertically are provided on the steel wall panel, and the strip-shaped holes are arranged corresponding to the round holes on the fishplate.

[0012] In some embodiments, the width of the fishplate located on the frame column is greater than or equal to 100 mm.

[0013] In some embodiments, the width of the fishplate located at the lower end of the steel wall panel is greater than that of the fishplate located on the frame column.

[0014] In some embodiments, a lifting hole is formed in the fishplate located at the upper end of the steel wall panel, and the inner side thereof is reinforced by a stiffening plate facing the inner side of the steel wall panel, which is convenient for identifying the installation direction of the steel wall panel.

[0015] In some embodiments, skip welding is adopted between the frame column and the steel wall panel.

[0016] In some embodiments, the weld between single steel wall panels is fully enclosed welding.

[0017] Positive and beneficial effects:

[0018] The fishplate can be used to pre-fix the steel wall panel and assist in the welding reinforcement construction of the steel plate wall, with higher construction efficiency. The U-shaped ribs staggered on both sides of the steel wall panel can effectively enhance the overall stability and stiffness of the structure, make the load distribution more uniform, and contribute to improving the bearing capacity and safety of the structure. The U-shaped ribs, steel wall panel, frame column, and floor steel beam together form a core tube system, which can achieve the advantages of stability, uniform load distribution, and good support effect in the structural design. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a structural schematic diagram of the present utility model;

[0020] Figure 2 is a structural schematic diagram of the connection node between the steel plate wall and the floor steel beam in the present utility model;

[0021] Figure 3 is a structural schematic diagram of the connection node between the steel plate wall and the frame column in the present utility model;

[0022] Figure 4 is a transverse sectional view of the present utility model;

[0023] Figure 5 is a longitudinal sectional view of the present utility model;

[0024] In the figure: floor steel beam 1, frame column 2, fishplate 3, U-shaped rib 4, steel wall panel 5; Specific embodiments

[0025] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] First embodiment:

[0027] See Figures 1 - 5 As shown, a hoisting unit of a fully steel U-shaped rib steel plate shear wall provided by the present utility model includes proposing the present invention for the above problems, providing a hoisting unit and construction method of a fully steel U-shaped rib 4 steel plate shear wall. The specific invention process consists of the following four parts: steel wall panel 5 design → steel wall panel 5 manufacturing → steel wall panel 5 installation → steel wall panel 5 welding.

[0028] It includes frame columns 2 located between floor steel beams 1. Fishplates 3 for assisting in positioning the steel wall panel 5 are provided on both the floor steel beams 1 and the frame columns 2. The fishplates 3 are located on the inner and outer sides of the steel wall panel 5. The fishplates 3 pre-installed on the floor steel beams 1 and the frame columns 2 can be directly welded to the inner sides of the floor steel beams 1 and the frame columns 2 in the factory, so as to facilitate the temporary fixation of the steel wall panel 5 through installation bolts. A clamping plate is provided on the lower surface of the lower flange of the floor steel beam 1 on the frame column 2 to determine the elevation of the steel wall panel 5. The clamping plate is on the same side as the fishplate 3; when installing the steel wall panel 5, after the steel wall panel 5 is installed in place, the fishplate 3 at the upper end of the steel wall panel 5 on the other side is fixedly installed on the floor steel beam 1 and temporarily fixed through installation bolts, and then the three-sided fishplates 3 of the steel wall panel 5 on the other side are welded to the two side frame columns 2 and the lower floor steel beam 1. During welding, segmented symmetric welding is adopted to reduce welding deformation.

[0029] U-shaped ribs 4 are provided on both sides of the surface of the steel wall panel 5. The U-shaped ribs 4 are arranged longitudinally and transversely on the surface of the steel wall panel 5, and the U-shaped ribs 4 on both sides of the steel wall panel 5 are staggered. Together, they form a support unit for the steel wall panel 5. The support of the steel wall panel 5 is formed by the longitudinally and transversely staggered U-shaped ribs 4, and the U-shaped ribs 4 on both sides of the steel wall panel 5 are staggered, effectively enhancing the overall stability and stiffness of the structure, reducing the deformation and vibration of the structure under the action of external loads. The staggered arrangement of the support structure can distribute the load more evenly, reduce local stress concentration, and help improve the bearing capacity and safety of the structure. Then the U-shaped ribs 4, the steel wall panel 5, the frame column 2, and the floor steel beam 1 together form a core tube system, which can achieve the advantages of stability, uniform load distribution, and good support effect in structural design.

[0030] Second embodiment, the different feature from the first embodiment is:

[0031] The U-shaped rib 4 is formed by cold bending and pressing a steel plate. The U-shaped rib 4 formed by cold bending and pressing the steel plate has the advantages of high quality, high efficiency, low cost and environmental protection, and can increase the cross-sectional size without increasing the thickness of the steel plate, saving material costs, and thus improving the bearing capacity, seismic capacity and flexural stiffness of the steel wall panel 5.

[0032] The U-shaped ribs 4 located on the inner and outer sides of the steel wall panel 5 are evenly distributed along the transverse and longitudinal directions of the steel wall panel 5. The uniform distribution of the U-shaped ribs 4 can effectively increase the overall stiffness and stability of the steel wall panel 5, resist the action of external loads and wind loads, reduce the deformation and vibration of the structure, and the U-shaped ribs 4 staggered on the inner and outer sides of the steel wall panel 5 can distribute the load more evenly, reduce local stress concentration, and help improve the bearing capacity and safety of the structure.

[0033] The third embodiment is different from the first embodiment in that:

[0034] The steel wall panel 5 is provided with a vertically extending strip hole, which is correspondingly arranged with the round hole on the fishplate 3. The strip hole is an oval hole, that is, a vertically long round hole, which can move vertically when the steel wall panel 5 has longitudinal welding deformation, can avoid vertical force during construction, and reduce the longitudinal force on the steel wall panel 5; in addition, the fishplate 3 uses a round hole, and the long round hole on the steel wall panel 5 cannot be seen on the outside after the fishplate 3 is combined with the steel wall panel 5. The fishplate 3 covers the strip hole on the steel wall panel 5, and the structure appearance is more beautiful.

[0035] In addition, the steel wall panel 5 and the upper floor steel beam 1 can be prefabricated and welded in the factory, and the other three sides of the steel wall panel 5 are temporarily bolted with the fishplate 3 through long round holes, which can not only make the steel wall panel 5 not bear the vertical force during construction, but also reduce the on-site welding amount, reduce the on-site lifting times, and save the construction period.

[0036] Furthermore, the width of the fishplate 3 located on the frame column 2 is greater than or equal to 100 mm. The frame column 2 is located on both sides of the steel wall panel 5. The connection and fixation of the fishplate 3 on the frame column 2 with both sides of the steel wall panel 5 increase the shear bearing capacity between the steel wall panel 5 and the frame column 2. When connecting, bolt fixation is used and reinforcement is carried out by welding, which can effectively transmit the shear force and transverse load, enhance the stability and safety of the overall structure, and assist in supporting the steel wall panel 5, thus forming a stable overall structure.

[0037] In a preferred embodiment, the width of the fishplate 3 at the lower end of the steel wall panel 5 is greater than that of the fishplate 3 on the frame column 2. The specific width of the fishplate 3 at the lower end of the steel wall panel 5 is determined according to the thickness of the floor slab. This can avoid affecting the subsequent welding of the steel wall panel 5 after the floor slab concrete is poured. Since the fishplate 3 at the lower end has a larger width, it can provide a larger contact area and connection area, thereby enhancing the connection stability between the steel wall panel 5 and the fishplate 3. This design can effectively transfer loads and improve the load-bearing capacity of the overall structure. In addition, a fishplate 3 with a larger width usually means an easier installation and adjustment process, which can complete the connection of the auxiliary shear wall faster and more accurately, thereby improving the construction efficiency.

[0038] A lifting hole is opened on the fishplate 3 at the upper end of the steel wall panel 5, and its inner side is reinforced by a stiffening plate facing the inner side of the steel wall panel 5, which is convenient for identifying the installation direction of the steel wall panel 5. The stiffening plates all face inwards, which is convenient for identifying the installation direction of the steel wall panel 5.

[0039] The fourth embodiment is different from the first embodiment in that:

[0040] During the construction of the steel wall panel 5, the stairs of the multi-story building are welded layer by layer from bottom to top. Within the same floor, based on the welding quantity, the steel wall panel 5 with a larger welding quantity is welded first, and starting from the center of the steel wall panel 5 as the reference point, welding is carried out towards both sides.

[0041] In the same building floor, the steel wall panels 5 on both sides of the same structural column are welded first. Then, the other two vertical welds of the two welded steel wall panels 5 are not welded to provide measures for the shrinkage of the weld and the release of welding stress. The frame column 2 and the steel wall panel 5 are welded in a skipping manner, that is, the vertical welds of the steel wall panels 5 on both sides of the frame column 2 on odd or even numbers are preferentially welded, and then the longitudinal welds on the other two sides of the steel wall panel 5 are welded.

[0042] For the welding of a single steel wall panel 5, the welds between the single steel wall panels 5 are fully enclosed welds. Since the steel wall panel 5 is greatly restricted by the rigidity of the main structure during welding, and the weld of the whole steel wall panel 5 is a fully enclosed weld, different connection forms and weld forms can be adopted. The change situation of welding stress during the welding process and the distribution situation of residual stress after welding are unpredictable. Therefore, the principle of "welding the weld with a larger shrinkage first" is determined.

[0043] In the preferred embodiment of welding, the single steel wall panel 5 selects the welding scheme of first vertical welding and then horizontal welding during welding. In order to reduce the on-site welding quantity in the project, the upper end of the steel wall panel 5 is welded to the lower flange of the floor steel beam 1 of this layer in the factory, and only the three welds at the lower end of the steel wall panel 5 with the upper flange of the lower layer beam and on both sides of the steel wall panel 5 are welded on-site; by comparing the welding quantities of vertical welding and horizontal welding, the technological measure of first vertical welding and then horizontal welding is adopted.

[0044] According to the principle of welding the welds with large shrinkage first, the vertical fillet welds on both sides of the steel wall panel 5 and the frame column 2 are welded first, that is, the welding of the fishplate 3 and the steel wall panel 5, and then the surface fillet welds between the lower end of the steel wall panel 5 and the upper flange of the lower beam are welded, that is, the welding of the fishplate 3 and the steel wall panel 5.

[0045] In another embodiment, a segmented backward welding scheme is selected for welding the steel wall panel 5;

[0046] When the weld of the steel wall panel 5 is usually an ultra-long weld, the ultra-long weld is a weld greater than or equal to 2000 mm. The segmented backward welding is a welding method that divides the long weld into several segments and welds each segment in turn in the order opposite to the welding direction.

[0047] Specifically, the welding operation direction of the vertical weld is from bottom to top, and the welding sequence of each segment of the weld is sorted from top to bottom. For example, taking the standard floor as an example, the vertical weld is relatively long and can be divided into 3 segments, each segment being 1000 mm. The vertical intervals of the fishplate 3 are divided into C, B, and A from top to bottom in turn. When welding, the welding sequence can be A→B→C. In each welding interval, the welding operation is carried out from top to bottom, and after welding each segment, it is rotated to the next segment.

[0048] The welding operation direction of the horizontal weld is from left to right, and the welding sequence of each segment of the weld is sorted from right to left. For example, in the horizontal welding, the weld can be divided into 4 segments from left to right, each segment being 1000 mm. The vertical segments of the fishplate 3 are divided into A, B, C, and D from left to right in turn. When welding, the welding sequence can be A→B→C→D. In each welding interval, the welding operation is carried out in the order from right to left, and after welding each segment, it is rotated to the next segment.

[0049] According to this process, the welding sequence of vertical welding first and then horizontal welding can eliminate the post-weld residual stress to the greatest extent according to the design requirements.

[0050] The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A fully steel U-shaped rib steel plate shear wall hoisting unit, including frame columns (2) located between floor steel beams (1), characterized in that: Fishplate (3) for assisting in positioning the steel wall panel (5) is provided on both the floor steel beam (1) and the frame column (2), and the fishplate (3) is located on the inner and outer sides of the steel wall panel (5); U-shaped ribs (4) are provided on both sides of the surface of the steel wall panel (5), the U-shaped ribs (4) are arranged vertically and horizontally on the surface of the steel wall panel (5), and the U-shaped ribs (4) on both sides of the steel wall panel (5) are staggered, jointly constituting a support unit for the steel wall panel (5).

2. The hoisting unit of the all-steel U-shaped rib steel plate shear wall according to claim 1, characterized in that: The U-shaped rib (4) is formed by cold bending and pressing a steel plate.

3. The hoisting unit of the all-steel U-shaped rib steel plate shear wall according to claim 2, characterized in that: The frame column (2) is a box-shaped steel pipe column, and the floor beam is a hot-rolled and welded H-shaped steel.

4. The hoisting unit of the all-steel U-shaped rib steel plate shear wall according to claim 2, characterized in that: The U-shaped ribs (4) on the inner and outer sides of the steel wall panel (5) are evenly distributed along the transverse and longitudinal directions of the steel wall panel (5).

5. A fully steel U-shaped rib steel plate shear wall hoisting unit according to claim 1, characterized in that: A strip-shaped hole extending vertically is provided on the steel wall panel (5), and the strip-shaped hole is correspondingly arranged with the round hole on the fishplate (3).

6. The hoisting unit of the all-steel U-shaped rib steel plate shear wall according to claim 1 or 5, characterized in that: The width of the fishplate (3) on the frame column (2) is greater than or equal to 100 mm.

7. A fully steel U-shaped rib steel plate shear wall hoisting unit according to claim 6, characterized in that: The width of the fishplate (3) at the lower end of the steel wall panel (5) is greater than that of the fishplate (3) on the frame column (2).

8. A fully steel U-shaped rib steel plate shear wall hoisting unit according to claim 6, characterized in that: A hoisting hole is opened on the fishplate (3) at the upper end of the steel wall panel (5), and its inner side is reinforced by a stiffening plate facing the inner side of the steel wall panel (5), which is convenient for identifying the installation direction of the steel wall panel (5).

9. A fully steel U-shaped ribbed steel plate shear wall hoisting unit according to claim 1, characterized in that: Skip welding is adopted between the frame column (2) and the steel wall panel (5).

10. A fully steel U-shaped rib steel plate shear wall hoisting unit according to claim 1, characterized in that: The weld between single-piece steel wall panels (5) is fully enclosed welding.

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