超静定无粘结预应力砼应力增量计算的能量法  

Stress Increment Methodology of Energy Law for Statically Indeterminate, Non-caking Precast Structures

作　　者：刘斌[1] 

机构地区：[1]广东省路桥规划勘察中心,广东广州510635

出　　处：《广东交通职业技术学院学报》2005年第3期56-58,共3页Journal of Guangdong Communication Polytechnic

摘　　要：以结构系统势能驻值原理为基础,提出了无粘结预应力砼超静定结构预应力钢筋应力增量计算的能量法,给出了无粘结预应力砼连续梁在均布荷载作用下无粘结预应力筋应力增量的求解过程,与目前已有方法进行了比较,验证了按能量法求解的实用性。On the basis of the theory of conservation of energy methodology for structure systems,this paper puts forward a stress increment approach of energy law for a non-caking precast concrete Statistically Indeterminate Structures （SIS）. It proposes a feasible solution to calculate stress increment for the non-caking precast concrete,under the uniformly distributed live load. The results are compared with the currently accepted approach, suggesting that the energy law has the advantage in the operational applications.

关 键 词：预应力砼 超静定结构 应力增量 能量法 

分 类 号：U445.47[建筑科学—桥梁与隧道工程]