摘要
从承载能力极限状态出发,推导出结构承载力与偏心距e呈单调递减关系,引入偏心距系数的概念——e/[e0],通过比较加固前后控制截面的偏心距系数,进行加固设计方案比选及加固效果评价,并依托工程实例进行了说明,以期对圬工拱桥加固设计方案比选和加固效果评价提供借鉴和参考。
From the ultimate limit state,it is deduced that the structure of the bearing capacity and eccentricity monotonically is a decreasing relationship,then the concept of eccentricity factor-e/[e0]is introduced,eccentricity factors of the control section before and after reinforced are compared,thereinafter the reinforcement design solutions and effect are compared and evaluated.Based on an engineering example descriptions are made which could provide reference for similar projects in future.
出处
《公路》
北大核心
2014年第12期81-85,共5页
Highway
基金
国家自然科学基金项目
项目编号51278512/E080505
重庆市重大科技攻关基金项目
项目编号CSTC2009AB6149
关键词
圬工拱桥
承载力
偏心距系数
方案比选
加固效果评价
masonry arch bridge
bearing capacity
eccentricity factor
schemes comparison
reinforcement effect evaluation
