Large-span string truss coal shed structure system advantageously resisting strong wind

Abstract

The invention provides a large-span string truss coal shed structure system advantageously resisting strong wind, and relates to the technical field of building structures. The large-span string trusscoal shed structure system comprises an arched truss, a lower string inhaul cable fixed to the lower part of the arched truss, a wind-resisting inhaul cable fixed to the upper part of the arched truss, a plurality of lower string cable supporting rods fixed between the lower string inhaul cable and the arched truss, and a plurality of wind-resisting cables fixed between the wind-resisting inhaulcable and the arched truss. The large-span string truss coal shed structure system can be used for large-span dry coal shed structures adopting lightweight roofs and located in strong wind environments such as plains and coastal areas, and thus the structural steel quantity can be decreased while the rigidity of the structure is not reduced under wind suction; compared with an existing structure,the wind-resisting cables are additionally used, after the string inhaul cable fails under the strong wind situation, the rigidity of the structure is not reduced sharply, and excessively large deformation even destroy is avoided; and meanwhile, the large-span string truss coal shed structure system further has the advantages of small support counter force, high continuous collapse resisting ability, good economical efficiency and the like.

Description

technical field [0001] The invention relates to a string truss structure, in particular to a large-span string truss coal shed structure system which is good for resisting strong winds, and belongs to the technical field of building structures. Background technique [0002] According to the national technical environmental protection requirements, the newly built and a large number of existing coal yards need to be closed and transformed to avoid coal loss and environmental pollution in bad weather. It is a super-long-span column-free space structure, and the structural form of the long-span steel structure just meets its characteristics of large span, large height, and large coverage area. [0003] The existing chord truss includes a top chord truss, several pairs of braces and a pair of bottom chord cables. The prestress of the down cables causes the top chord truss to generate back deflection. The tension force of the struts makes the struts generate an upward component ...

AI Technical Summary

Problems solved by technology

However, many coal storage yards are located in strong wind environments such as plains and coastal areas. The wind suction is greater than the vertical downward load combined with the weight of the roof structure and the live load of the roof, causing the lower strings to withdraw from work, the overall stiffness of the structure is reduced, and the structure is deformed. Enlarging, or even destroying, generally resists wind suction by increasing the structural counterweight or increasing the force of the lower string, but the results of both methods will increase the amount of steel used

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