基于两阶段受力的桥梁加固设计计算方法研究

Research on Design and Calculation of Bridge Consolidation Based on Two Stage Stress

在桥梁加固设计中,加固结构属于二次受力结构,在受力分析中必须考虑分阶段受力特点。根据这一受力特点,可建立桥梁加固正截面、斜截面承载力的计算公式,同时采用塑性极限分析方法,有助于研究新老混凝土粘结面上的剪切强度。

In bridge consolidation design, the reinforcement structure belongs to twice loading structure, whose loading characteristic must be considered during its stress analysis. According to its stress characteristic, a formula for calculating the cross section and the diagonal section can be gotten, and the shearing strength is helpful to be studied using plastic limit analysis method.