Double-spliced H-shaped steel angle brace system
By adopting a double-piece H-shaped steel gusset system in foundation pit construction projects, and forming a high-rigid rectangular structure through splicing and welding, the existing gusset system has been solved, and the problems of poor stability, time-consuming and labor-intensive, long construction period and high cost are achieved. Convenient construction, strong load-bearing capacity and reduced cost.
Patent Information
- Application Number
- CN202420717944.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-08
AI Technical Summary
In foundation pit construction projects, the existing corner support system has problems such as poor stability, time-consuming and labor-intensive, long construction period and high construction cost. Especially in rectangular foundation pits with large excavation depth and small area, the construction period of concrete supports is long. And it cannot be recycled, and the steel pipe gusset system is prone to instability due to small stiffness and small amounts are not conducive to construction organization.
The double-composed H-shaped steel gusset system is adopted to form the double-composed steel waist beam and gusset through the splicing of Zhouyan H-shaped steel and the corner edge H-shaped steel, and the wing edge connection steel plate, steel stiffening steel plate, support head steel plate, and waist beam angle stiffening steel plate and support end stiffener ribs to improve the stiffness and stability of the structure, and form a rectangular structure through welding fixation.
It improves construction speed and load-bearing capacity, reduces project costs, and shortens construction period. Due to the use of the same type of steel, the construction is more convenient and the system is recyclable, which is in line with the concept of green, low-carbon and environmental protection.
Smart Images
Figure CN222206373U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of foundation pit construction engineering, in particular to a double-jointed H-shaped steel angle bracing system. Background Art
[0002] With the rapid development of my country's economy, the construction industry has achieved remarkable achievements. In construction projects, steel structures, as an important building material, are widely used in various building structures, such as bridges, high-rise buildings, large venues, etc. In steel structures, H-shaped steel has been widely used due to its excellent mechanical properties and ease of construction. In H-shaped steel structures, the angle bracing system is the key part to ensure structural stability and bearing capacity.
[0003] Then, in municipal engineering, we often encounter rectangular foundation pits with large excavation depth and small area, which require the installation of multiple angle bracing systems, generally using concrete supports or single steel pipe supports. Concrete supports have high rigidity and high safety, but they need to wait for the concrete pouring and curing time, which takes a long time to complete, is expensive and cannot be recycled. The steel pipe angle bracing system generally uses a steel beam combined with a steel pipe support. The materials are recyclable and the cost is low, but the system has low rigidity and is prone to instability. In addition, since the support system uses two different types of steel, steel and steel pipes, and the amount used is small, it is not conducive to construction organization. Utility Model Content
[0004] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and provide a double H-shaped steel angle bracing system to solve the technical problems of poor stability, time-consuming and labor-intensive, long construction period and high cost of angle bracing systems in the field of foundation pit construction engineering technology.
[0005] In order to achieve the above technical purpose, the technical solution of the utility model provides a double H-shaped steel angle brace system, including:
[0006] Weir H-shaped steel, corner H-shaped steel, flange connecting steel plate, steel stiffening steel plate; two of the weir H-shaped steels are spliced up and down and arranged and welded and fixed by the flange connecting steel plate to form a double-shaped steel waist beam; two of the corner H-shaped steels are spliced up and down and arranged and welded and fixed by the flange connecting steel plate to form a double-shaped steel angle brace; four double-shaped steel waist beams are welded and fixed in sequence from head to tail to form a rectangular shape; one end of the double-shaped steel angle brace is welded and fixed to one side of the double-shaped steel waist beam; the other end of the double-shaped steel angle brace is welded and fixed to one side of the adjacent double-shaped steel waist beam.
[0007] Compared with the prior art, the beneficial effects of the utility model include:
[0008] 1. Convenient construction: The double H-steel angle bracing system provided by the utility model adopts the design of peripheral H-steel and corner H-steel, which improves the construction speed and reduces the construction difficulty.
[0009] 2. Strong bearing capacity: The double H-shaped steel provided by the utility model has a higher bearing capacity and can withstand greater loads by arranging flange connecting steel plates, steel stiffening steel plates, support head steel plates, waist beam corner stiffening steel plates, stiffening ribs at the sharp angles of the support ends, and stiffening ribs at the obtuse angles of the support ends, so that the system has a higher bearing capacity and can withstand greater loads, thereby improving the stability of the overall structure.
[0010] 3. Cost reduction: The double H-shaped steel angle bracing system provided by the utility model is convenient for construction, which helps to reduce engineering costs and improve economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the oblique two-axonometric structure of the double-jointed H-shaped steel angle bracing system provided by the utility model;
[0012] Figure 2 It is a top view structural schematic diagram of the double H-shaped steel angle bracing system provided by the utility model;
[0013] Figure 3 It is a front structural schematic diagram of the double H-shaped steel angle bracing system provided by the utility model;
[0014] Figure 4 It is an enlarged schematic diagram of the installation structure of the stiffening ribs at the acute angle of the support end and the stiffening ribs at the obtuse angle of the support end in the double H-shaped steel angle bracing system provided by the utility model. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0016] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.
[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0018] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The present embodiment provides a double H-shaped steel angle brace system, including: peripheral H-shaped steel 1, corner H-shaped steel 2, double-shaped steel waist beam 3, double-shaped steel angle brace 4, flange connection steel plate 5, steel stiffening steel plate 6, support head steel plate 7, waist beam corner stiffening steel plate 8, stiffening ribs at the acute angle of the support end 9, stiffening ribs at the obtuse angle of the support end 10 and angle steel bracket 11.
[0019] Furthermore, the two peripheral H-shaped steels 1 are spliced up and down and arranged and welded and fixed by the flange connecting steel plates 5 to form a double-shaped steel waist beam 3, the two corner H-shaped steels 2 are spliced up and down and arranged and welded and fixed by the flange connecting steel plates 5 to form a double-shaped steel angle brace 4, and the four double-shaped steel waist beams 3 are welded and fixed in sequence from head to tail to form a rectangular shape, one end of the double-shaped steel angle brace 4 is welded and fixed to one side of the double-shaped steel waist beam 3, and the other end of the double-shaped steel angle brace 4 is welded and fixed to one side of the adjacent double-shaped steel waist beam 3.
[0020] Preferably, four double-steel angle braces 4 are provided and distributed at the four corners of the double-steel waist beam 3 to increase the stability of the system.
[0021] Furthermore, a plurality of the steel stiffening plates 6 are welded and fixed to the web of the double-jointed steel waist beam 3, a plurality of flange connecting steel plates 5 are welded and fixed to both sides of the double-jointed steel waist beam 3 and the double-jointed steel angle brace 4, and a waist beam corner stiffening steel plate 8 is welded and fixed to the connection between the two double-jointed steel waist beams 3.
[0022] Preferably, two waist beam corner stiffening steel plates 8 are welded at the connection between the two double-piece steel waist beams 3 and are distributed at the upper and lower ends of the double-piece steel waist beams 3 .
[0023] Specifically, the steel reinforcement plate 6 and the waist beam corner reinforcement plate 8 can improve the rigidity of the structure, so that the structure deforms less when subjected to external force, thereby improving the stability and durability of the structure; directly bearing the force from the outside; and can transfer the load from one plate to another, or distribute the load to a wider supporting structure, thereby reducing stress concentration in local areas.
[0024] Furthermore, supporting head steel plates 7 are welded to both ends of the double-piece steel angle brace 4, and the side of the supporting head steel plate 7 close to the double-piece steel angle brace 4 is arranged at an acute angle to the double-piece steel angle brace 4, and the other side of the supporting head steel plate 7 close to the double-piece steel angle brace 4 is arranged at a blunt angle to the double-piece steel angle brace 4, and the side of the supporting head steel plate 7 away from the double-piece steel angle brace 4 is welded and fixed to the web of the double-piece steel waist beam 3.
[0025] Furthermore, the double-piece steel angle brace 4 and the supporting head steel plate 7 are arranged at an acute angle with a stiffening rib 9 at the acute angle of the supporting end, and the double-piece steel angle brace 4 and the supporting head steel plate 7 are arranged at an obtuse angle with a stiffening rib 10 at the obtuse angle of the supporting end.
[0026] Furthermore, one side of the stiffening rib 9 at the acute angle of the support end is welded and fixed to the support head steel plate 7, and the other side of the stiffening rib 9 at the acute angle of the support end is welded and fixed to one side of the double-piece steel angle brace 4.
[0027] Furthermore, one side of the stiffening rib 10 at the obtuse angle of the support end is welded and fixed to the support head steel plate 7; and the stiffening rib 10 at the obtuse angle of the support end is welded and fixed to one side of the double-piece steel angle brace 4.
[0028] The stiffening ribs 9 at the acute angles of the support ends and the stiffening ribs 10 at the obtuse angles of the support ends can increase the stability of the system.
[0029] Furthermore, the peripheral weir H-shaped steel 1 includes a first horizontal section, a second horizontal section and a vertical section, one end of the vertical section is integrally formed with the bottom end of the first horizontal section, and the other end of the vertical section is integrally formed with the upper end of the second horizontal section, and the cross-section of the peripheral weir H-shaped steel 1 is H-shaped.
[0030] Furthermore, one end of the steel-reinforcing steel plate 6 is welded and fixed to the bottom end of the first horizontal section, the other end of the steel-reinforcing steel plate 6 is welded and fixed to the upper end of the second horizontal section, and the side of the steel-reinforcing steel plate 6 close to the peripheral weir H-shaped steel 1 is welded and fixed to one side of the vertical section.
[0031] Furthermore, a plurality of the angle steel brackets 11 are welded and fixed to the lower end of the double-jointed steel waist beam 3 .
[0032] Specifically, the angle steel bracket 11 can prevent the double-jointed steel waist beam 3 from falling due to its own gravity due to loose connection, thereby making the angle bracing system more stable.
[0033] The utility model also provides a construction method of the system, and the specific steps include the following:
[0034] S1, the steel reinforcement steel plates 6 are welded and fixed at the upper and lower ends of the H-shaped steel 1, and the steel reinforcement steel plates 6 are densified at the places where they are welded and fixed with the support head steel plates 7, and the spacing between adjacent steel reinforcement steel plates 6 is reduced to 1 / 2 of the original spacing; the flanges of two H-shaped steels 1 of the H-shaped steel 1 are welded in parallel at a certain interval through the flange connecting steel plates 5 to form the double-jointed steel waist beam 3, and the double-jointed steel waist beam 3 is welded with the support head steel plates 7 at the angle support nodes;
[0035] S2, the double-jointed steel waist beam 3 is connected to the supporting structure through the embedded steel plate and the embedded steel bar. When the corners of the two double-jointed steel waist beams 3 are assembled and welded, one of the waist beam corner stiffening steel plates 8 is provided on the web of the double-jointed steel waist beam 3, and the steel stiffening steel plate 6 on one side of the corner should be denser;
[0036] S3, according to the design length of the angle brace, cut the two ends of the double-piece steel angle brace 4 into a 45° angle, weld the double-piece steel angle brace 4 to the support head steel plates 7 on the two adjacent sides, and set the support end acute angle stiffening rib and the support end obtuse angle stiffening rib at the junction of the two, and weld them to strengthen the fixation;
[0037] S4. Set the angle steel bracket 11 at the lower end of the double-jointed steel waist beam 3, with the two tightly attached and the outer sides aligned. Weld the inner side of the angle steel bracket 11 to the double-jointed steel waist beam 3, and weld the outer side to the supporting structure to ensure the stability of the angle bracing system.
[0038] Working principle: The double-splice H-shaped steel angle brace system provided by the utility model includes a circumferential weir H-shaped steel 1, an angle H-shaped steel 2, a flange connecting steel plate 5, and a steel stiffening steel plate 6. Furthermore, two of the circumferential weir H-shaped steels 1 are spliced together up and down and are welded and fixed through the flange connecting steel plate 5 to form a double-splice steel waist beam 3. The two of the angle H-shaped steels 2 are spliced together up and down and are welded and fixed through the flange connecting steel plate 5 to form a double-splice steel angle brace 4. The four double-splice steel waist beams 3 are welded and fixed end to end in sequence to form a rectangular shape. One end of the double-splice steel angle brace 4 is welded and fixed to one side of the double-splice steel waist beam 3, and the other end of the double-splice steel angle brace 4 is welded and fixed to one side of the adjacent double-splice steel waist beam 3.
[0039] Specifically, compared with the conventional steel pipe support structure, the double-splice H-shaped steel support system has greater rigidity and better coordinated deformation ability, and the waist beam and support are made of the same type of steel, which makes construction more convenient. At the same time, compared with the concrete support system, it can not only shorten the construction period and save economic costs, but also be recycled and reused in the later stage, which is more in line with the development concept of green, low-carbon and environmentally friendly.
[0040] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.
Claims
1. A double H-shaped steel angle bracing system, characterized in that: include: Weir H-shaped steel, corner H-shaped steel, flange connecting steel plate, steel stiffening steel plate; two of the weir H-shaped steels are spliced up and down and arranged and welded and fixed by the flange connecting steel plate to form a double-shaped steel waist beam; two of the corner H-shaped steels are spliced up and down and arranged and welded and fixed by the flange connecting steel plate to form a double-shaped steel angle brace; four double-shaped steel waist beams are welded and fixed in sequence from head to tail to form a rectangular shape; one end of the double-shaped steel angle brace is welded and fixed to one side of the double-shaped steel waist beam; the other end of the double-shaped steel angle brace is welded and fixed to one side of the adjacent double-shaped steel waist beam.
2. The double H-shaped steel angle bracing system according to claim 1 is characterized in that: The web of the double-jointed steel waist beam is welded and fixed with a plurality of the steel stiffening plates; both sides of the double-jointed steel waist beam and the double-jointed steel angle brace are welded and fixed with a plurality of the flange connecting steel plates; the connection between the two double-jointed steel waist beams is welded and fixed with a waist beam corner stiffening steel plate.
3. The double H-shaped steel angle bracing system according to claim 2 is characterized in that: Support head steel plates are welded to both ends of the double-piece steel angle brace; the side of the support head steel plate close to the double-piece steel angle brace is arranged at an acute angle with the double-piece steel angle brace; the other side of the support head steel plate close to the double-piece steel angle brace is arranged at a blunt angle with the double-piece steel angle brace; the side of the support head steel plate away from the double-piece steel angle brace is welded and fixed to the web of the double-piece steel waist beam.
4. The double H-shaped steel angle bracing system according to claim 3 is characterized in that: Where the double-jointed steel angle brace and the supporting head steel plate are arranged at an acute angle, stiffening ribs are provided at the acute angle of the supporting end; where the double-jointed steel angle brace and the supporting head steel plate are arranged at an obtuse angle, stiffening ribs are provided at the obtuse angle of the supporting end.
5. The double H-shaped steel angle bracing system according to claim 4 is characterized in that: One side of the stiffening rib at the acute angle of the support end is welded and fixed to the support head steel plate; the other side of the stiffening rib at the acute angle of the support end is welded and fixed to one side of the double-piece steel angle brace.
6. The double H-shaped steel angle bracing system according to claim 5 is characterized in that: One side of the stiffening rib at the obtuse angle of the support end is welded and fixed to the support head steel plate; the stiffening rib at the obtuse angle of the support end is welded and fixed to one side of the double-piece steel angle brace.
7. The double H-shaped steel angle bracing system according to claim 6 is characterized in that: The peripheral weir H-shaped steel includes a first horizontal section, a second horizontal section and a vertical section; one end of the vertical section is integrally formed with the bottom end of the first horizontal section; the other end of the vertical section is integrally formed with the upper end of the second horizontal section; the cross-section of the peripheral weir H-shaped steel is H-shaped.
8. The double H-shaped steel angle bracing system according to claim 7 is characterized in that: One end of the steel-reinforced steel plate is welded and fixed to the bottom end of the first horizontal section; the other end of the steel-reinforced steel plate is welded and fixed to the upper end of the second horizontal section; the side of the steel-reinforced steel plate close to the peripheral weir H-shaped steel is welded and fixed to one side of the vertical section.
9. The double H-shaped steel angle bracing system according to claim 8 is characterized in that: It also includes an angle steel bracket; a plurality of the angle steel brackets are welded and fixed to the lower end of the double-jointed steel waist beam.