Large-span asymmetric horseshoe-shaped multi-layer truss construction method

An asymmetrical, large-span technology, applied in truss structures, girders, trusses, etc., can solve problems such as difficult control of corbel docking accuracy, collision of truss core tubes, etc., and achieves low reinforcement cost, high precision, and strong traceability. Effect

Pending Publication Date: 2021-12-17
中建六局第一建设有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The butt joint members are divided into multiple layers and arranged in a circumferential direction. The truss is easy to collide with the core tube when it is lifted. After the lift is in place, it is difficult to control the butt joint accuracy of the corbels.

Method used

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  • Large-span asymmetric horseshoe-shaped multi-layer truss construction method
  • Large-span asymmetric horseshoe-shaped multi-layer truss construction method
  • Large-span asymmetric horseshoe-shaped multi-layer truss construction method

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Embodiment Construction

[0040] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0041] Please refer to the accompanying drawings, a long-span asymmetrical horseshoe-shaped multi-layer truss construction method, the truss 1 is supported by a plurality of bottle-shaped core tubes 2, and each of the core tubes 2 is provided with four large-inclination giant steel pipe columns 2- 1. The truss 1 is provided with an inner ring skew truss 1-1 and an outer ring skew truss 1-2, and the inner ring skew truss 1-1 and the outer ring skew truss 1-2 are arranged on the upper chord 1-1- 1 and the lower chord 1-1-2 are equipped with multi-layer webs 1-1-3, and the webs 1-1-3 of each layer of the inner ring oblique truss 1-1 and the outer ring oblique truss 1-2 The upper chord 1-1-1 and the lower chord 1-1-2 are connected by platform bea...

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Abstract

The invention discloses a large-span asymmetric horseshoe-shaped multi-layer truss construction method. A truss and a core tube are in butt joint through a cantilever bracket, the cantilever bracket is of a box-shaped structure, and the thickness of a web of an inward-extending cantilever bracket of the truss is different from that of a web of an outward-extending cantilever bracket of the core tube; the truss is assembled on the ground through a positioning jig frame, and the positioning jig frame is provided with a plurality of bearing units which are arranged in a scattered mode. A plurality of lifters mounted at the top of a steel tube column of the core tube are adopted to lift the truss integrally. When the truss is assembled, local fine adjustment is facilitated, precise positioning is achieved, and the assembling precision is improved conveniently; the pre-mounted inward-extending cantilever bracket is in butt joint with the outward-extending cantilever bracket on the core tube, effective measures are adopted for preventing interference, the field welding operation amount after lifting can be reduced, construction is facilitated, and the mounting quality is conveniently improved; a multi-point overall lifting method and effective measures are adopted to prevent deformation of the truss, butt joint errors are made up, and the mounting positioning efficiency and the mounting quality are greatly improved.

Description

technical field [0001] The invention relates to a method for installing a truss, in particular to a construction method for a large-span asymmetric horseshoe-shaped multi-layer truss. Background technique [0002] The long-span space structure is an important symbol to measure the level of construction technology of a country or region. With the rapid development of my country's urban economy, the long-span space steel structure fully demonstrates its architectural charm and unlimited development space. , Beautiful appearance and many other advantages have been widely used, and become an active field in the current architectural structure research. Large-span space structures generally adopt the form of steel structures. As the span increases, the construction difficulty of steel structures also increases day by day. The traditional steel structure installation methods include the high-altitude bulk method, the overall hoisting method, and the overall lifting method. The hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/342E04C3/04E04G21/14
CPCE04B1/342E04C3/04E04G21/14
Inventor 隗合新李心雷郭颖高璞顾军兵
Owner 中建六局第一建设有限公司
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