Prestress type steel-concrete structure using performance design method

A technology of concrete structure and design method, which is applied in the direction of structural elements, long-strip structural members for load-bearing, building components, etc., and can solve the problems of ignoring constraints, engineering safety hazards, and the failure of normal performance of prestressed concrete beams to meet structural requirements And other issues
CN102749246AInactive Publication Date: 2012-10-24TONGJI UNIV +1
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
TONGJI UNIV
Publication Date
2012-10-24
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The present invention relates to a prestress type steel-concrete structure design, and belongs to the field of civil engineering. The prestress type steel-concrete structure using performance design method is characterized by: considering constraint and distribution thereof, wherein the using performance design during structure construction designing comprises calculating deflection of a frame beam under a normal use limit state and carrying out checking computation on a maximum crack width of the frame beam. Considerations of the constraint and the distribution thereof are the entity generated by the internal forces, the constraint causes the influence of the secondary axial force, such that the prestressed frame beam becomes a tension bending member from a flexural member so as to impact deflection and crack width of the prestressed frame beam. With the calculation formula of the design method provided by the present invention, the influence of the secondary axial force is considered, and the prestress type steel-concrete structure design theory is quantitatively established by using a constraint viewpoint.
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Description

technical field

[0001] The invention relates to the design of a prestressed steel concrete structure, in particular to a design method for the serviceability of the prestressed steel concrete structure. Background technique

[0002] The modern prestressed structural system refers to the prestressed structural system built with high-strength and high-performance materials, modern design methods and advanced construction techniques. one. It is widely used in large public buildings, large overhangs, large-span and heavy-duty industrial buildings, high-rise buildings, large and medium-span bridges, large special structures, TV towers, nuclear power plant containment shells, and offshore platforms. Prestressed steel concrete (PSRC) structure, as a new modern prestressed structure, can very effectively adapt to the development trend of modern architecture and meet the needs of modern structures. Applying prestress to the steel concrete beam can expand the elastic range of the ma...

Claims

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