湖南大学学报（自然科学版）Issue(6)：63-69,7.
考虑瞬态热应变的钢筋混凝土板火灾反应分析
Fire Response Analysis of Reinforced Concrete Slabs Considering Transient Strain
摘要
Abstract
Based on the nonlinear temperature field theory,the temperature program of reinforced con-crete member was developed.By analyzing the mechanical behavior of different temperature-stress speci-mens,the transient strain importance was discussed,and the transient strain model under the biaxial stress state as well as transient modulus was proposed.According to the flat shell theory and thermal elas-tic-plastic constitutive model,the finite element model of reinforced concrete two-way slab was established to simulate the fire behavior of the three slabs.In addition,the effect of transient strain and thermal strain on the fire behavior of the slab was studied.The results have shown that the predictions agree well with the test results,and the transient strain model is verified.The parametric study indicates that the transient strain and thermal strain have an important influence on the fire behavior of the slab.关键词
钢筋混凝土板/火灾/瞬态热应变/瞬态模量/膨胀应变Key words
reinforced concrete slab/fires/transient strain/transient modulus/thermal strain分类
建筑与水利引用本文复制引用
王勇,董毓利,袁广林,王耀..考虑瞬态热应变的钢筋混凝土板火灾反应分析[J].湖南大学学报（自然科学版）,2014,(6):63-69,7.基金项目
国家自然科学基金资助项目(51178143) （51178143）
中央高校基本科研业务费专项资金资助项目(2014QNA78) （2014QNA78）
教育部博士学科点专项科研基金资助项目(20120095110027) （20120095110027）
