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Large-span prestressed box-shaped simply supported steel beam-column structure and its installation method

A prestressed, long-span technology, applied in the direction of building construction, construction, etc., can solve the problems of inability to effectively protect prestressed anchors, steel strands or steel bars, inability to effectively reduce prestress loss, and poor structural stability. Achieve the effects of preventing anchor head deformation or anchor head failure, high rigidity, and small loss of prestress

Active Publication Date: 2020-08-04
CSIC INT ENG CO LTD +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, relatively advanced externally prestressed box-shaped simply supported beams occupy a large space and have poor structural stability. Reduce the loss of prestress, especially the rupture of prestress tendons under accidental loads, which presents a major safety hazard

Method used

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  • Large-span prestressed box-shaped simply supported steel beam-column structure and its installation method
  • Large-span prestressed box-shaped simply supported steel beam-column structure and its installation method
  • Large-span prestressed box-shaped simply supported steel beam-column structure and its installation method

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Embodiment Construction

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0051] In describing the present invention, it is to be understood that the terms "comprises / comprising", "consisting of" or any other variation thereof are intended to cover a non-exclusive inclusion such that a product, device, A process or method includes not only those elements, but may also include other elements not expressly listed, or elements inherent in such a product, apparatus, process, or method, as required. Without further limitations, an element defined by the phrase "comprising / comprising...", "consisting of... does not exclude the...

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Abstract

The invention provides a large-span prestressed box-shaped simply supported steel beam-column structure, which includes steel columns, simply supported steel beams, corbels, anchor plates, sleeves, and prestressed tendons, and the right flange of the left steel column is welded and fixed Corbel, the left end of the steel beam is fixed on the upper surface of the corbel by bolts, the right end of the steel beam is welded and fixed to the left flange of the right steel column; the left end of the steel beam is welded with a cover plate, and the lower part of the cover plate is welded with a lower positioning plate, the cover plate An upper positioning block is welded on the upper side, and the anchor plate is clamped between the lower positioning plate and the upper positioning block; the two ends of the prestressed tendons are anchored on the anchor plate and the left flange of the right steel column. The large-span prestressed box-shaped simply supported steel beam-column structure provided by the present invention has high rigidity and high elastic bearing capacity, can effectively reduce the mid-span deflection of the steel beam, reduce the section height of the steel beam, have high safety performance, simple structure, and low cost , good durability, small prestress loss, and may be widely used in long-span structures.

Description

technical field [0001] The invention generally relates to the field of building structure engineering, and mainly relates to a prestressed box-shaped simply supported steel beam, in particular to a large-span prestressed box-shaped simply supported steel beam-column structure and an installation method. Background technique [0002] At present, in the field of construction engineering, especially in large-span, large space, and large overhanging structural systems, bending-resistant steel beams are widely used. Due to the large span of this type of structure, once an earthquake occurs, the consequences will be more serious than ordinary buildings. Therefore, as the main resistance component, the bending-resistant steel beam plays a very important role in construction quality and safety. However, the commonly used ordinary steel beams have poor mechanical performance and limited bending resistance. Once the force is too large, you can only choose a larger cross-section steel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/342E04B1/24E04B1/58
CPCE04B1/24E04B1/2403E04B1/342E04B2001/2406E04B2001/2415E04B2001/2418
Inventor 兰涛秦广冲李然门进杰剧锦三姜子钦
Owner CSIC INT ENG CO LTD
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