Analysis method for mechanical performance of stainless steel reinforced concrete column

Abstract

The invention provides an analysis method for mechanical performance of a stainless steel reinforced concrete column, and the method comprises the following steps of establishing a mechanical performance test of a stainless steel reinforced concrete eccentric compression column; checking whether the flat section assumption of a stainless steel reinforced concrete eccentric compression member is true; analyzing the variation law of a deflection curve, a mid-span lateral deflection and a longitudinal steel strain; checking the theoretical formula of the bearing capacity of the stainless steel reinforced concrete eccentric compression column; and giving a calculation formula of an average crack spacing of a test piece of the stainless steel reinforced concrete eccentric compression column anda recommended value of the component characteristic coefficient. The analysis method provided by the invention compares the failure mode, deflection curve, crack development and longitudinal steel strain of the stainless steel reinforced concrete eccentric compression test piece under the change of the reinforcement ratio and the loading eccentricity, and discusses the calculation of the bearingcapacity and the crack width, so that a method of calculating the bearing capacity of the stainless steel reinforced concrete column is established to provide theoretical basis for the design of stainless steel reinforced concrete structures, having a good development and application prospect.

Description

technical field [0001] The invention relates to the field of stainless steel reinforced concrete, in particular to an analysis method for the mechanical performance of stainless steel reinforced concrete columns. Background technique [0002] Since the end of the 19th century, reinforced concrete has been widely used in the construction of infrastructure such as hydraulic structures, marine structures, roads and bridges. Due to the multiphase and heterogeneous system composed of reinforced concrete structures, and the carbonation and erosion of concrete, the corrosion process of steel bars has been greatly affected. The promotion effect of steel bar corrosion has become the main factor for the degradation of the mechanical properties of reinforced concrete components. With the large-scale construction of major infrastructure such as water conservancy and transportation in my country, more and more reinforced concrete structures are under harsh environmental conditions. Some pr...

AI Technical Summary

Problems solved by technology

At present, domestic research on stainless steel bars started relatively late, and most of the research on stainless steel bars at home and abroad focuses on its corrosion resistance. There are few studies on the mechanical properties of stainless steel reinforced concrete structures. Mechanical properties have important academic significance and practical value, so the present invention proposes an analysis method for the mechanical properties of stainless steel reinforced concrete columns to solve the deficiencies in the prior art

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