碳纤维板材加固梁式桥应用研究  

Research on application of strengthening beam bridge with carbon fiber plates

作　　者：宋娃丽 庞旭 杜书亮 SONG Wali;PANG Xu;DU Shuliang(School of Civil and Transportation Engineering,Hebei University of Technology,Tianjin 300401,China;Hebei Road and Transportation Co LTD,Shijiazhuang,Hebei 050000,China)

机构地区：[1]河北工业大学土木与交通学院,天津300401 [2]河北道桥交通集团有限公司,河北石家庄050000

出　　处：《河北工业大学学报》2018年第2期85-88,95,共5页Journal of Hebei University of Technology

基　　金：廊坊市科技支撑计划(2015013001)

摘　　要：随着交通运输的发展,一些桥梁状况恶化,需要对其进行维修加固.以天津某后张预应力混凝土桥梁为背景,综合考虑各种因素,采用粘贴碳纤维板材的方式进行加固;通过对碳纤维板材加固梁式桥进行理论分析;单梁加固前、后静载试验、全桥加固后静载试验,研究粘贴碳纤维板材对桥梁的加固效果;碳纤维板材加固方法可提高结构的抗弯承载性能及耐久性.With the development of transportation industry in China,the condition of bridge is deteriorating,and some bridges needed to be maintained.With the background of a post-tensioned prestressed concrete bridge in Tianjin,various factors being considered,the method of sticking carbon fiber sheet was used in this bridge reinforcement program.By doing theoretical analysis of the beam bridge reinforced with carbon fiber sheet,and comparing with the static load test results of before and after strengthening for single beam,and doing static test after full bridge reinforcement,the effect of the reinforcement on the bridge was systematically studied.The method of strengthening beam bridges with carbon fiber sheet can greatly improve the flexural bearing capacity and durability of the structure.

关 键 词：梁式桥 加固 碳纤维板材 静载试验 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]