基于参考点位移边界条件的千斤顶卸载及顶升模拟方法  

Simulation Method of Jack Unloading and Jacking Based on Boundary Conditions of Reference Point Displacement

作　　者：焦常科 JIAO Changke(Shanghai Construction Group Co.,Ltd.,Shanghai 200080,China)

机构地区：[1]上海建工集团股份有限公司,上海200080

出　　处：《建筑施工》2022年第3期609-611,共3页Building Construction

摘　　要：从广义约束方程出发,通过引入参考点的边界条件实现千斤顶的顶升或卸载特性。介绍了基于参考点位移边界条件的千斤顶卸载及顶升模拟方法的基本原理,以悬臂梁端部的卸载和顶升为例进行了模拟。计算结果与理论值对比表明,模拟方法可真实再现千斤顶的卸载及顶升特性。Starting from the generalized constraint equation,the jacking or unloading characteristics of Jack are realized by introducing the boundary conditions of reference points.The basic principle of Jack unloading and jacking simulation method based on boundary conditions of reference point displacement is introduced.The unloading and jacking at the end of cantilever beam are simulated as an example.The comparison between the calculated results and the theoretical values shows that the simulation method can well reproduce the unloading and jacking characteristics of the jack.

关 键 词：千斤顶 卸载 顶升 有限元模型 

分 类 号：TU602[建筑科学—建筑技术科学]