Flexural bearing capacity designing method for frame beam adopting pre-stressed steel reinforced concrete structure

Abstract

The invention relates to a flexural bearing capacity designing method for a frame beam adopting a pre-stressed steel reinforced concrete structure and belongs to the field of civil engineering. The flexural bearing capacity designing method for the frame beam adopting the pre-stressed steel reinforced concrete structure is characterized in that when the frame beam adopting the pre-stressed steel reinforced concrete structure is designed, the influence on a flexural bearing capacity and bending moment of a front section of the frame beam caused by lateral restraint is considered; and by adopting a method that the calculation is influenced by the restraint during the structure construction, a new formula for calculating the flexural bearing capacity and the bending moment is provided. According to the design method disclosed by the invention, complex restraint conditions of the pre-stressed steel reinforced concrete structure and the influence on the calculation of the flexural bearing capacity of the front section of the frame beam caused by the restraint and distribution of the pre-stressed steel reinforced concrete structure are fully considered, so that the design of the structure better meets the requirement of an actual structure and better safety performance is obtained.

Description

technical field [0001] The invention relates to the design of the ultimate bearing capacity of a prestressed steel concrete structure, in particular to a design method for the bending bearing capacity of a frame beam of a 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 s...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a design method for the flexural bearing capacity of frame beams of prestressed steel concrete structures, which solves the problem that the actual prestressed concrete beams cannot meet the normal use and ultimate bearing capacity of the actual prestressed concrete beams due to the neglect of constraints in the calculation of the current design method. Structural requirements, but the defects that bring safety hazards to the project

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