CN-224213635-U - Space steel folded beam and slope roof steel structure

CN224213635UCN 224213635 UCN224213635 UCN 224213635UCN-224213635-U

Abstract

The utility model relates to the technical field of steel structural members, in particular to a space steel folded beam and a slope roof steel structure. A space steel folded beam comprises a first beam section, a second beam section and a transition section, wherein the cross section of the first beam section is I-shaped, an included angle exists between the axis of the second beam section and the first beam Duan Zhouxian, an included angle exists between the plane of a web plate of the second beam section and the plane of the web plate of the first beam section, the transition section comprises a transition web plate and a transition wing plate, and two ends of the transition section are respectively connected with two beam sections of a first beam Duan Hedi. The utility model overcomes the defects that under the condition that a rod piece of a space steel structure has torsion and bending, in the prior art, one of the two round steel pipes is used as a main and secondary beam of the space steel structure, but two adjacent round steel pipes are connected in a through welding mode, the construction difficulty is high, and the other of the two round steel pipes is used as a main and secondary beam of the space steel structure, but the two round steel pipes are not suitable for a narrow space.

Inventors

ZHONG XUELIN
DAI BO
WU JINGJING
XIAO JIE
ZHANG SIMIN

Assignees

中铁成都规划设计院有限责任公司

Dates

Publication Date: 20260508
Application Date: 20250519
Priority Date: 20250516

Claims (10)

1. A space-type steel folded beam, comprising: The beam comprises a first beam section (1), wherein the section of the first beam section (1) is I-shaped; The section of the second beam section (2) is I-shaped, an included angle exists between the axis of the second beam section (2) and the axis of the first beam section (1), and an included angle exists between the plane where the web of the second beam section (2) is located and the plane where the web of the first beam section (1) is located; The transition section (3), transition section (3) contains transition web (305) and transition pterygoid lamina, transition web (305) both ends are connected respectively the web of first roof beam section (1) with the web of second roof beam section (2), transition pterygoid lamina both sides are connected respectively the pterygoid lamina of first roof beam section (1) with the pterygoid lamina of second roof beam section (2).
2. A space-type steel folded beam according to claim 1, characterized in that the transition section (3) is further provided with at least two stiffening plates, two of which are arranged between the first beam section (1) and the transition section (3) and between the second beam section (2) and the transition section (3), respectively.
3. A space-type steel folded beam according to claim 2, characterized in that the transition section (3) comprises a first stiffening plate (301) and a second stiffening plate (302), the planes of the first stiffening plate (301) and the second stiffening plate (302) are included, and the axes of the first stiffening plate (301) and the second stiffening plate (302) are included.
4. A space-type steel folded beam according to claim 2, characterized in that the stiffening plates are connected to the side of the transition wing plate facing the transition web (305).
5. A space-type steel folded beam according to any one of claims 1-4, characterized in that the transition wing plates comprise a first transition wing plate (303) and a second transition wing plate (304), and an included angle exists between the plane of the first transition wing plate (303) and the plane of the second transition wing plate (304).
6. A space beam as claimed in any one of claims 1 to 4, wherein the transition web (305) is of curved panel construction.
7. A space-type steel folded beam according to any one of claims 1-4, characterized in that one end of the first beam section (1) remote from the second beam section (2) is connected with a third beam section (4), the axis of the third beam section (4) is parallel to the axis of the second beam section (2), and the plane of the web of the third beam section (4) is parallel to the plane of the web of the first beam section (1).
8. A sloping roof steel structure comprising a space-type steel folded beam as claimed in any one of claims 1 to 7.
9. A sloping roof steel structure according to claim 8, further comprising a main steel frame beam (5), the first beam section (1) and the second beam section (2) being bolted to the main steel frame beam (5).
10. The sloping roof steel structure according to claim 9, characterized in that the second beam section (2) is connected to the side corresponding to the main steel frame beam (5), the main steel frame beam (5) has an i-shaped cross section, and the width direction of the second beam section (2) is parallel to the width direction of the main steel frame beam (5).

Description

Space steel folded beam and slope roof steel structure Technical Field The utility model relates to the technical field of steel structural members, in particular to a space steel folded beam and a slope roof steel structure. Background The space steel structure is a high-efficiency stress system characterized by three-dimensional space geometric forms, and various forms such as a net rack, a net shell, a suspension cable, a string or cable dome and the like are formed through ingenious combination of rod pieces, nodes and curved surfaces. The structure utilizes the high strength and ductility of steel materials, uniformly transmits load to a supporting point through space cooperative stress, has the advantages of large-span spanning capacity and light weight, simultaneously shows the integration of mechanical logic and building aesthetics, is widely applied to roof and space enclosing systems of marked buildings such as stadiums, airport terminal buildings and exhibition centers, and the modular design and assembly type construction of the structure more meet the pursuit of modern engineering on efficiency and environmental protection. Under the condition that a large column-free space is required to be realized or a complex modeling is required to be expressed in a building, a space steel structure is adopted as a roof of the building, and at the moment, a rod piece of the space steel structure is twisted and bent. The existing circular steel pipes or pipe trusses are used as the main beams and the secondary beams of the space steel structure. However, if a circular steel pipe is used as the main and secondary beams of the space steel structure, two adjacent circular steel pipes need to be connected in a penetration welding mode, and if a pipe truss is used as the main and secondary beams of the space steel structure, the circular steel pipe is not suitable for roofs with narrow spaces. Disclosure of utility model The utility model aims to overcome the defects that in the prior art, under the condition that a rod piece of a space steel structure is twisted and bent, one round steel pipe is used as a main and secondary beam of the space steel structure, but two adjacent round steel pipes are connected in a through welding mode, the construction difficulty is high, and the other round steel pipes are used as the main and secondary beams of the space steel structure, but the pipe truss is not suitable for a narrow space, and provides a space steel folded beam and a slope roof steel structure. In a first aspect, the present utility model provides a space-type steel folded beam comprising: The section of the first beam section is I-shaped; The section of the second beam section is I-shaped, an included angle exists between the axis of the second beam section and the first beam Duan Zhouxian, and an included angle exists between the plane where the web of the second beam section is located and the plane where the web of the first beam section is located; The transition section comprises a transition web plate and a transition wing plate, two ends of the transition web plate are respectively connected with the web plate of the first beam section and the web plate of the second beam section, and two sides of the transition wing plate are respectively connected with the wing plate of the first beam section and the wing plate of the second beam section. The angle between the axis of the first beam section and the axis of the second beam section is determined according to the actual situation, and the angle between the plane of the web of the first beam section and the plane of the web of the second beam section is determined according to the actual situation. The first beam Duan Hedi two beam sections with the I-shaped section are arranged, so that the bearing capacity of the folded beam is ensured as much as possible. The length direction of the first beam section and the length direction of the second beam section have included angles, the plane where the webs at the first ends are located and the plane where the webs at the second beam section are located have included angles, and compared with the existing pipe truss form, the space occupied by the pipe truss form is smaller, and the pipe truss form is suitable for the rod form of a space steel structure. The first roof beam Duan Hedi two roof beam sections adopt the changeover portion to connect, and the changeover portion contains transition web and transition pterygoid lamina, does not adopt the member of pipeline form to avoid adopting the form of intersecting the welding, compare in the current main and secondary roof beam that adopts circular steel pipe as space steel construction, be convenient for construction. Preferably, the transition section is further provided with at least two stiffening plates, wherein two stiffening plates are arranged between the first beam section and the transition section and between the second beam section and the transitio