A steel and concrete composite space triangular ring truss structure and its construction method

Abstract

The invention provides a steel and concrete combined space triangle ring truss structure. According to the structure, steel and concrete are ingeniously combined together, the material characteristics of the steel and the concrete are brought into full play, and part of enormous torque, axial tensile force and axial pressure which are erected on a ring truss in a self-balanced closed saddle-shaped space structure system are borne through a small steel using quantity and concrete using quantity; and cost is reduced, the construction progress is accelerated, economic benefits are obtained, structural durability is improved, and structure stress is more reasonable.

Description

technical field [0001] The invention belongs to the technical field of structural engineering steel and concrete composite structures, in particular to a steel and concrete composite space triangular ring truss structure and a construction method. Background technique [0002] With the rapid development of the economy, the steel-concrete composite structure has opened up two new application fields, one is highways and urban bridges, and the other is high-rise and super high-rise buildings. The application of steel tube concrete structures is gradually increasing. However, in actual engineering, due to the great difference in the compressive and tensile properties of concrete, and the large amount of concrete components and their own weight, they are rarely used in large-span space trusses. However, steel has high strength, small amount of materials, and light weight, so it is often used in long-span roof beams or trusses. In a partially self-balancing closed saddle-shaped sp...

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Problems solved by technology

However, in actual engineering, due to the great difference in the compressive and tensile properties of concrete, and the large amount of concrete components and their own weight, they are rarely used in large-span space trusses.

However, steel has high strength, small amount of materials, and light weight, so it is often used in long-span roof beams or trusses. In a partially self-balancing closed saddle-shaped space structure system, ring trusses are subject to huge torque, axial tension, and axial pressure. Conventional pure steel structure ring truss, the amount of steel is very large, and the structure cost is extremely high

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