水利水电技术2017，Vol.48Issue(1)：52-58,7.DOI:10.13928/j.cnki.wrahe.2017.01.010
基于单弹簧联结单元法的白鹤滩拱坝孔口配筋非线性有限元分析
Single-spring joint element method-based nonlinear finite element analysis on orifice reinforcement of Baihetan Arch Dam
摘要
Abstract
With the single-spring joint element method and four-parameter damage model for concrete,a 3-D reinforced concrete nonlinear finite element calculation is made on the structure of the No.6 bottom outlet of Baihetan Arch Dam under construction for analyzing the effect from the reinforcement on the stress status of the orifice structure,the damaging status of the concrete after reinforcing,the stress distribution of the reinforcement,the cracking width,etc.The result shows that there is no larger effect from the reinforcement on the stress of the concrete within most of the regions of that orifice,however,the stress statuses of the locations of the girder,downstream gate pier,etc.with larger tensile stress are improved somewhat.Within the orifice,only slight damage occurs at the joint between both the girder and the gate pier,for which the increase and extension of the damage can be restricted to a certain extent by reinforcing,while the stress of the reinforcement in the No.6 bottom outlet is not so large and the cracking extension width can meet the requirement of the criteria concerned as well.关键词
拱坝/孔口/配筋/单弹簧联结单元法/混凝土四参数损伤模型Key words
arch dam/orifice/reinforcement/single-spring joint element method/four-parameter damage model for concrete分类
水利科学引用本文复制引用
殷鸣,李同春,赵兰浩,张伟..基于单弹簧联结单元法的白鹤滩拱坝孔口配筋非线性有限元分析[J].水利水电技术,2017,48(1):52-58,7.基金项目
水利部公益性行业科研专项经费项目(201501034) （201501034）
