摘要
利用ANSYS有限元软件对南水北调工程中沙河预应力渡槽进行了有限元分析,采用初始应变法达到施加预应力的目的,计算了槽身在完建期、设计水位和加大水位3种工况下的环向和纵向应力值,并对施加钢绞线前后结果进行了对比,得出渡槽槽身在配筋后具有足够的强度和刚度,结构安全可靠,设计预应力方案是可行的.
The used of the finite element software of ANSYS solve the problem of the finite element analysis of Shahe prestress concrete aqueduct,which is attached to the project of South-to-North water transfer,the method of initial strain is used to apply prestressing force.There are three operating conditions are finished construction period,design water level and increase the water level.The yield value joined steel stranded wire were compared with the value non-stranded.With the relevant provisions,the aqueduct body joined steel stranded has sufficient strength and rigidity,and the structural is safety and reliability,the program of prestressed aqueduct is feasible.
出处
《河南科学》
2010年第8期954-957,共4页
Henan Science
基金
河南省科技攻关资助项目(0124150)
关键词
渡槽
预应力混凝土
有限元
初始应变法
强度
aqueduct
prestress concrete
finite element analysis
the method of initial strain
strength
