酸雨环境下方钢管再生混凝土偏心受压承载力计算方法研究

发布时间：2018-04-04 05:22

本文选题：酸雨腐蚀　切入点：方钢管再生混凝土　出处：《混凝土》2016年11期

【摘要】：以偏心距(e=25、50 mm)、骨料类型(普通、再生)和腐蚀程度(β=0、10%、20%)为主要变化参数,进行了5个钢管再生混凝土和4个钢管普通混凝土偏心受压试件的试验研究。由于腐蚀过程中钢管壁厚近似均匀地减小,所以在已有的钢管普通混凝土以及钢管再生混凝土偏心受压承载力计算公式的基础上,通过折减钢管壁厚的方法来计算酸雨环境下的钢管普通(再生)混凝土的偏心受压承载力。通过折减钢管壁厚方法计算所得承载力与试验所得偏心受压承载力基本吻合,因此通过折减钢管壁厚的方法来计算酸雨环境下的钢管混凝土偏心受压承载力对工程具有很重要的适用性和指导意义。
[Abstract]:The eccentricity (e=25,50 mm), aggregate type (normal, regeneration) and corrosion degree (P =0,10% 20%) as the main parameters, the 5 RACFST and 4 common concrete filled steel tube under eccentric compression tests. The corrosion process of steel tube due to wall thickness of approximately uniformly reduced basis so in the existing common concrete filled steel tube and steel tube concrete eccentric compression bearing capacity calculation formula, through reduction method to calculate the wall thickness of steel pipe steel pipe under acid rain common (regeneration) bearing capacity of eccentrically loaded concrete. Through the reduction of pipe wall thickness calculation method of bearing capacity is basically consistent with the experimental results of eccentric the compression, so the reduction method to calculate the thickness of steel tube concrete filled steel tube under eccentric compression bearing capacity under acid rain has the applicability and significance is very important to the project.

【作者单位】：华东交通大学土木建筑学院;江西省建筑过程模拟与控制重点实验室;国网江西省电力公司赣西供电分公司电力经济技术研究所;
【基金】：国家自然科学基金项目(51378206,51008122) 江西省青年科学基金计划(20143ACB21020) 江西省青年科学家培养对象(20133BCB23015)
【分类号】：TU398.9

【相似文献】