摘要
研究阜新市规划博物馆后张有粘结预应力混凝土主梁的四段抛物线布筋方式,采取等效荷载法和弯矩面积法进行理论计算,采用ADINA有限元软件进行数值模拟研究,结合现场实测数据对比分析,说明理论计算与实测数据基本吻合;验证了大跨度后张有粘结预应力混凝土主梁的反拱度计算方法的可行性,并指出有限元分析方法对大跨度预应力混凝土主梁进行反拱度计算的可靠性。
Four section parabola distributed method of post-tensioned pre-stressed concrete beam in Fuxin Planning Museum was studied. Equivalent load method and area-moment method were used for theoretical analysis, the finite element software ADINA was adopted for computing simulation. Combined with situ measured data, it shows that theoretical calculation is close to the situ measured data and proves the possibility of the pre-camber of the large-span post-tensioned pre-stressed concrete beam. The finite element method is reliable in the large-span post-tensioned pre-stressed concrete beam.
出处
《建筑结构》
CSCD
北大核心
2014年第9期65-67,14,共4页
Building Structure
基金
中国新兴建设开发总公司科技研发资助项目(CXXJS20130501)
辽宁省科学事业公益研究基金项目(2011004002)
辽宁工程技术大学市场调研基金(12-1284)
关键词
预应力
大跨度
混凝土主梁
反拱度
降温法
pre-stressed
large-span
concrete beam
pre-camber
falling temperature method
