岩土工程学报2013，Vol.35Issue(z1)：430-433,4.
防护栏支柱-地基的弹簧模型分析
Spring model for guardrail post-foundation
摘要
Abstract
An effective method is proposed to simulate the action between the guardrail post and the foundation.The finite element software ABAQUS is adopted to analyzed the allocated spring element along the axial and the circumferential directions of the post.Horizontal distortion of the post will be generated when reaction applied on the spring element.In determining the results of numerical model for the effectiveness of the theoretical analytic techniques,the impacts of the number n of spring element and direction angle θ of load P are discussed.Meanwhile,the spring coefficient Ks and the analytical solution of the ultimate bearing capacity of arbitrary spring are gained.The number of spring element along the circumferential direction of the post in actual projects is also verified:when 8 or 12 spring element are arranged along the circumferenctial direction,the difference of the reaction of the spring system will become smaller owing to different loading directions.When 12 spring element are arranged along the circumferenctial direction,the load P under the same displacement is compared with that when θ =0 °,the difference is within 2％.The results show that the post-foundation model is effective and feasible,and it can be used in the design of guardrail posts.关键词
防护栏/支柱/弹簧模型/数值模拟Key words
guardrail/ post/ spring model/ numerical simulation分类
建筑与水利引用本文复制引用
杨璐,陈德龙,孔方钧,陈玳珩..防护栏支柱-地基的弹簧模型分析[J].岩土工程学报,2013,35(z1):430-433,4.基金项目
国家自然科学基金项目(11102118,51109134) （11102118,51109134）
辽宁省"百千万人才工程"项目(2011921048) （2011921048）
沈阳市优秀人才专项基金项目 （）
