【摘要】 基于混凝土徐变的继效流动理论,结合方钢管混凝土轴心受压构件的受力特点,推导出方钢管混凝土轴心受压构件徐变的计算公式.此徐变计算公式既考虑了钢管混凝土轴心受压构件徐变的特点,又能反应出不同因素对构件徐变的影响.应用这些公式,通过迭代计算得到的钢管混凝土轴心受压构件的徐变,与试验数据符合较好.更多还原

【Abstract】 Based on the Elastic Continuation and Plastic Flow theory for concrete creep, and considering the mechanical characteristics of axially compressed Concrete Filled Steel Box (CFSB) members, this paper derived a formula to calculate the creep of axially compressed CFSB members. The influential factors of CFSB members to creep are considered rationally in the formula. The obtained results agree well with the experimental data.更多还原