Large-span prestressed dome structure and manufacturing method thereof

Abstract

The invention discloses a large-span prestressed dome structure which comprises annular steel beams, inner ring steel beams, conical joints, L-shaped components and connection rods. The annular steel beams are arranged above temporary supporting columns, the inner ring steel beams are arranged on the inner sides of the annular steel beams, the conical joints are arranged in the middle of the inner ring steel beams, the L-shaped components are arranged on the outer sides of the annular steel beams and arranged opposite to the inner ring steel beams, and each connection rod is arranged between two L-shaped components. By designing the inner ring steel beams and the L-shaped components, span of a dome is increased greatly; two ends of radial steel beams and high riggings in the inner ring steel beams are fixed on the conical joints and arc-shaped steel beams in the annular steel beams respectively, so that prestress of the whole dome is increased greatly, aseismicity of the dome is improved, requirements on load bearing capacity of a supporting structure are lowered, and stability and safety of the whole steel structure are improved effectively.

Description

technical field [0001] The invention relates to a steel structure, in particular to a large-span prestressed dome structure. Background technique [0002] Steel structure building is a new type of building system, which involves the industry boundaries between real estate, construction, and metallurgy, and integrates into a new industrial system. This is the steel structure building system that people in the industry are generally optimistic about. Compared with traditional concrete buildings, steel structure buildings use steel plates or section steel instead of reinforced concrete, which has higher strength and better seismic resistance, and because the components can be manufactured in a factory and installed on site, the construction period is greatly shortened. Formally because of its many characteristics, it is gradually favored by many enterprises. [0003] In the manufacturing process of steel structure buildings, it is generally necessary to have a roof. Due to the...

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Problems solved by technology

[0003] In the manufacturing process of steel structure buildings, it is generally necessary to have a roof. Due to the particularity of its structure, in order to ensure its normal construction and construction safety, it is basically supported by using more temporary support columns. The entire roof is supported, and too many temporary supports are used, which is inconvenient for construction. At the same time, most of the roof is completely supported by the supporting columns and supporting frames below during the use process, so that the support of the entire supporting structure If there is any problem in the supporting structure, the roof will be greatly affected, and it will even threaten the safety of people's lives and property. Therefore, the roof of the existing steel structure building still needs to be improved.

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