实心板桥荷载效应及提载效果分析  

Analysis of Load Effects and Load Lifting Effects of Solid Slab Bridges

作　　者：李博 LI Bo(Shanxi Transportation Survey&Design Institute Co.,Ltd.,Taiyuan,Shanxi 030032,China)

机构地区：[1]山西省交通规划勘察设计院有限公司,山西太原030032

出　　处：《山西交通科技》2024年第3期73-77,共5页Shanxi Science & Technology of Transportation

摘　　要：早期修建的桥梁受当时建造水平制约、自然环境侵蚀、材质劣化等因素影响,服役性能难以满足日益增长的交通量需求。依托忻州市境内普通国道调查数据,结合有限元模拟,开展实心板桥在公路-Ⅱ级荷载、汽-15级荷载作用下的结构响应分析及碳纤维布加固提载效果分析。研究表明:早期汽-15级荷载等级的实心板桥采用碳纤维布加固方案难以达到提载至公路-Ⅱ级荷载等级要求。Due to the constraints of the construction level,natural environment erosion,material deterioration,and other factors,the service performance of early-built bridges is difficult to meet the demands of increasing traffic volumes.According to investigation data of ordinary national highways in Xinzhou,Shanxi,based on the finite element simulation,this paper analyzed the structural response of solid slab bridges under the Highway-Ⅱload and Vehicle-15 load and the load lifting effect of carbon fiber cloth reinforcement.The results showed that using carbon fiber cloth to reinforce the early solid slab bridge of Vehicle-15 load was difficult to meet the requirements of lifting the load to Highway-Ⅱgrade.

关 键 词：实心板桥 提载 上部结构 加固 

分 类 号：U448.212[建筑科学—桥梁与隧道工程]