CAJ | 학술논문

确定了钢材和混凝土热工参数和热一力本构关系,采用ABAQUS软件建立了火灾下高强混凝土墙温度分布和受力性能分析的有限元模型,计算结果得到以往实验结果的验证.在此基础上,对高强混凝土墙高温下的应力分布、混凝土裂缝以及重要影响因素进行了分析,初步了解了火灾下高强混凝土墙的力学性能,为进一步确定科学合理的抗火设计方法创造了条件.
학정료강재화혼응토열공삼수화열일력본구관계,채용ABAQUS연건건립료화재하고강혼응토장온도분포화수력성능분석적유한원모형,계산결과득도이왕실험결과적험증.재차기출상,대고강혼응토장고온하적응력분포、혼응토렬봉이급중요영향인소진행료분석,초보료해료화재하고강혼응토장적역학성능,위진일보학정과학합리적항화설계방법창조료조건.
The thermal properties and thermo-meehanical constitution law of steel and concrete were determined. A finite element model for temperature distribution and mechanical analysis of high strength concrete (HSC) walls under fire was established using the software ABAQUS. The calcu-lated results agreed with previous experimental results. Based on the finite element model, the stress distribution, concrete cracks and key influencial parameters of HSC walls at high temperatures were analyzed. The fire performance of HSC walls was obtained, which provided conditions for further study on rational fire design method.