锚索框架梁中锚固力分配与调整改进算法  

An Improved Method on Distribution and Adjustment of Anchoring Force in Anchor Frame Beam

作　　者：王向东[1] 王潘[1] 邓荣贵[2] 

机构地区：[1]四川省地质工程勘察院,成都610031 [2]西南交通大学土木工程学院,成都610031

出　　处：《路基工程》2014年第4期61-65,共5页Subgrade Engineering

基　　金：高等学校博士学科点专项科研基金(20120184110023)

摘　　要：根据预应力锚索框架梁加固边坡工程的特点,基于Winkler弹性地基梁假设,针对目前锚固力分配与调整的不合理性,分析了相邻节点影响下锚固力分配的原理,推导了相邻节点影响下锚固力分配的具体计算公式。并嵌入矩阵进行运算,提出了放大系数S的概念,代替传统的荷载调整方法对初次分配的锚固力进行再调整。计算结果表明,该锚固力分配和调整的方法,在节点处产生的位移不协调差值,比传统方法小很多。因此,此法更精确,值得推广应用。According to the characteristics of the slope engineering reinforced by frame beam with prestressed anchor cable, this paper, based on the assumption of Winkler elastic foundation beam, analyzed the principle of anchoring force distribution under the effect of adjacent nodes against the improper distribution and adjustment of anchoring force currently, and then deduced the specific calculation formula thereof. Next, it was incorporated into matrix for calculation with a concept, amplification factor S, proposed to subsitute for the traditional load adjustment method to make re-adjustment of anchoring force distributed initially. The calculation result shows that this method distributing and adjusting anchoring force brings far less difference between inconsistent displacements at the nodes than that from traditional method, thus the method herein is more precise and deserves to be promoted.

关 键 词：边坡工程 框架梁 预应力锚索 分配与调整 理论计算 

分 类 号：TU32[建筑科学—结构工程]