基于ABAQUS的火山渣混凝土梁温度场有限元分析  

Finite Element Analysis of Temperature Field of Volcanic Slag Concrete Beam based on ABAQUS

作　　者：蔡斌[1] 李博[1] 曹祥扩 CAI Bin;LI Bo;CAO Xiangkuo(School of Civil Engineering,Jilin Jianzhu University,Changchun Jilin 130118,China)

机构地区：[1]吉林建筑大学土木工程学院

出　　处：《北方建筑》2019年第3期5-9,共5页Northern Architecture

基　　金：国家自然科学基金(51378238,51178206);住房和城乡建设部科学技术项目(2017-K9-047);国家重点研发计划(2017YFC0806104)

摘　　要：研究火山渣混凝土梁受火后力学性能时,要明确其受火后截面的温度场分布。本文基于非线性有限元分析软件ABAQUS对普通混凝土梁和火山渣混凝土梁进行温度场模拟,分析了普通混凝土梁和火山渣混凝土梁在不同受火时间下的梁截面温度以及梁内部钢筋温度的变化规律。结果表明:在受火时间相同的情况下,普通混凝土梁的测点温度高于火山渣混凝土梁的测点温度,且火山渣混凝土内部受力钢筋的温度明显低于普通混凝土内部受力钢筋的温度。The temperature field distribution of post-fire volcanic slag concrete beam is very important to study the mechanical properties.Based on the nonlinear finite element analysis software ABAQUS,the temperature field simulation of ordinary concrete beam and volcanic slag concrete beam is carried out.The variation of beam section temperature and beam internal bar temperature under different fire time is analyzed.The results show that the temperature of the ordinary concrete beam is higher than that of the volcanic slag concrete beam under the same fire time,and the temperature of the steel bars inside the volcanic slag concrete is significantly lower than the temperature of the steel bars inside the ordinary concrete.

关 键 词：ABAQUS 火山渣混凝土 受火 温度场 有限元 

分 类 号：TU375.1[建筑科学—结构工程]