| 在役钢筋混凝土空腹桁架拱渡槽检测及状态评估 |
| |
| 引用本文： | 罗维刚,钱炯,韩建平,裴海瑜,董小军. 在役钢筋混凝土空腹桁架拱渡槽检测及状态评估[J]. 甘肃科学学报, 2008, 20(4) |
| |
| 作者姓名： | 罗维刚 钱炯 韩建平 裴海瑜 董小军 |
| |
| 作者单位： | 兰州理工大学,防震减灾研究所,甘肃,兰州,730050 |
| |
| 基金项目： | 甘肃省科技攻关项目，兰州理工大学建工系77级校友奖励基金 |
| |
| 摘 要： | 为评估某大型渡槽钢筋混凝土空腹桁架拱结构的现役状态,提出了一套简易可行不停止运营的检测方法,检测了其混凝土强度、钢筋锈蚀、混凝土碳化等,并在不同工况下进行了荷载试验及相应应变、挠度等测试.在检测结果基础上,进一步运用大型通用有限元计算分析技术,对该跨桁架拱结构的现役状态及初始设计状态分别进行了数值模拟分析.检测及分析结果表明,混凝土强度符合设计要求,构件仍在弹性工作阶段,结构的承载能力可基本满足工程运营的要求.
|
| 关 键 词： | 渡槽 混凝土缺陷 状态评估 检测 有限元分析 |
Inspection and Condition Assessment on an Existing RC Arched Vierendal Truss Aqueduct |
| |
| LUO Wei-gang,QIAN Jiong,HAN Jian-ping,PEI Hai-yu,DONG Xiao-jun. Inspection and Condition Assessment on an Existing RC Arched Vierendal Truss Aqueduct[J]. Journal of Gansu Sciences, 2008, 20(4) |
| |
| Authors: | LUO Wei-gang QIAN Jiong HAN Jian-ping PEI Hai-yu DONG Xiao-jun |
| |
| Affiliation: | 1.Institute of Earthquake Protection and Disaster Mitigation;Lanzhou University of Science and Technology;Lanzhou 730050;China;2.Construction & Management Section;Gansu Provincial YindaruqinEngineering Management Bureau;Lanzhou 730300;China |
| |
| Abstract: | In order to assess the current condition of a RC arched vierendal truss of an existing aqueduct,concrete strength,reinforcement corrosion and concrete carbonization are tested.The load tests are also done and the corresponding strain and deflection under different load conditions are measured.Furthermore,based on the test results,the refined finite element analyses are conducted on the current state and original design state,respectively.Test and simulation results indicate that the concrete strength satisf... |
| |
| Keywords: | aqueduct concrete defect condition assessment inspection finite element analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
