辽宁工程技术大学学报（自然科学版）2017，Vol.36Issue(11)：1149-1154,6.DOI:10.11956/j.issn.1008-0562.2017.11.006
标准火灾下配筋圆钢管混凝土柱温度场试验研究
Temperature field of circle reinforced concrete-filled steel tube under standard ISO 834 fire
摘要
Abstract
In order to study the distribution regularity of temperature field under the condition of ISO 834 standard fire and free cooling of the circular concrete-filled tubular column with reinforcements,this paper firstly carried out an experiment of two circular concrete-filled tubular columns with reinforcements under the fire which were last for 30 minutes and 60 minutes.Then,the study used simulation software ABAQUS to set up models which match well with the test specimen with the same parameter of materials as well as the same heat transfer equation.The results of study show that the temperature of measuring point located in the longitude develops in a same consistent regularity,and the temperature field in longitude of the specimen are distributed uniformly.However,there is a grad of temperature existing inside the column section that the temperature is lower towards the core of the section.The closer to the core,the lower maximum temperature can reach.It takes more time to get the maximum temperature and more slowly in getting to lower temperature as well.During the temperature rising period,the concrete formed a temperature platform in 100℃,so the effect of the reinforcements can be ignored.关键词
标准火灾/配纵筋/钢管混凝土/温度场/ABAQUSKey words
ISO 834/configuration of longitudinal reinforcement/concrete filled with steel tube/temperature field/ABAQUS分类
建筑与水利引用本文复制引用
王微微,吕学涛,张玉琢..标准火灾下配筋圆钢管混凝土柱温度场试验研究[J].辽宁工程技术大学学报（自然科学版）,2017,36(11):1149-1154,6.基金项目
国家自然科学基金(51208246) （51208246）
辽宁省教育厅一般项目(LJYL033) （LJYL033）
