| 超高性能混凝土节段拼装混凝土护栏受力性能分析 |
| |
| 引用本文： | 蒋键锆,王银辉,李志勇,罗征. 超高性能混凝土节段拼装混凝土护栏受力性能分析[J]. 科学技术与工程, 2021, 21(15): 6463-6471. DOI: 10.3969/j.issn.1671-1815.2021.15.050 |
| |
| 作者姓名： | 蒋键锆 王银辉 李志勇 罗征 |
| |
| 作者单位： | 重庆交通大学土木工程学院,重庆40074;重庆交通大学土木工程学院,重庆40074;浙大宁波理工学院土木建筑工程学院,宁波315100;宁波市交通规划设计研究院有限公司,宁波315100;浙大宁波理工学院土木建筑工程学院,宁波315100 |
| |
| 基金项目： | 浙江省自然科学基金 (LY18E080004);第一作者：蒋键锆(1995—),男,汉,浙江,硕士研究生。研究方向：桥梁工程。E-mail：1104416733@qq.com。*通信作者：王银辉(1972—),男,汉,浙江,博士,教授。研究方向：桥梁动力安全与加固技术、桥梁结构动力分析。E-mail：wangyh7244@nit.zju.edu.cn。 ,王银辉1,2* ,李志勇3 ,罗征2 |
| |
| 摘 要： | 面对装配化桥梁的高速发展及服役桥梁混凝土护栏改造的装配化需求,提出由超高性能混凝土(ultra-high perform-ance concrete,UHPC)装配连接的新型节段拼装混凝土护栏.通过数值模拟对比分析了准静态荷载和冲击荷载作用下新型节段拼装混凝土护栏和普通混凝土护栏的极限荷载、动力响应和破坏形式.结果 表...
|
| 关 键 词： | 节段拼装混凝土护栏 超高性能混凝土 抗剪能力 准静态分析 动力分析 |
| 收稿时间： | 2020-11-13 |
| 修稿时间： | 2021-03-11 |
Mechanical Performance Analysis of UHPC Segmental Assembled Concrete Barrier |
| |
| Jiang Jiangao,Wang Yinhui,Li Zhiyong,Luo Zheng. Mechanical Performance Analysis of UHPC Segmental Assembled Concrete Barrier[J]. Science Technology and Engineering, 2021, 21(15): 6463-6471. DOI: 10.3969/j.issn.1671-1815.2021.15.050 |
| |
| Authors: | Jiang Jiangao Wang Yinhui Li Zhiyong Luo Zheng |
| |
| Affiliation: | Civil Engineering College,Chongqing Jiao Tong University;China;Civil Engineering College,Ningbo Tech University;China;Ningbo Communication Planning Institute CO,LTD;China |
| |
| Abstract: | In the face of the rapid development of prefabricated bridges and the assembly requirements for the reconstruction of concrete barriers of service bridges, this paper proposes a new segmental assembled concrete barrier which is assembled and connected by ultra-high performance concrete (UHPC). Through numerical simulation, the ultimate load, dynamic response and failure mode of new segment assembled concrete barrier and ordinary concrete barrier under quasi-static load and impact load are compared and analyzed. The results show that: the new segment assembled concrete barrier has the same anti-collision performance as ordinary concrete barrier under various loading conditions; UHPC members can absorb a lot of impact energy for the flange plate, which can effectively reduce the flange plate stress and play a certain protective role. This paper provides a reference for the assembly construction of concrete barrier. |
| |
| Keywords: | Segmental concrete crash barrier Ultra-High Performance Concrete Shear resistance Quasi-static analysis Dynamic analysis |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《科学技术与工程》浏览原始摘要信息 |
|
点击此处可从《科学技术与工程》下载全文 |
|
