高速公路天桥拆除力学分析与安全措施研究
Mechanical Analysis and Safety Measures of Expressway Overpass Demolition
李建军 1李永永 2翟启远3
作者信息
- 1. 山西晋阳高速改扩建项目管理有限公司,山西 晋城 048000
- 2. 山西省交通运输安全应急保障技术中心(有限公司),山西 太原 030006
- 3. 山西省交通建设工程质量检测中心(有限公司),山西 太原 030032
- 折叠
摘要
晋阳高速公路改扩建工程是山西省第一条"四改八"高速公路,沿线地形地质条件复杂多变,原有路段技术标准较低且交通量较大,在边通车边施工的条件下项 目建设期安全生产压力倍增.利用MIDAS Civil有限元软件对钢筋混凝土连续箱梁天桥拆除过程进行物理建模应力分析,根据计算结果复核拆除方案并补充完善安全控制措施,对同类桥梁工程安全快速拆除施工具有重要指导意义.
Abstract
The Jinyang Expressway reconstruction and expansion engineering is Shanxi's first"four-lane to eight-lane"project with complex and various geological conditions along the route.For the original road section,the technical standard was low and traffic volume was high,so,under the condition of half-constructing half-opening to traffic,the safety production pressure in the construction period increased significantly.This paper used MIDAS Civil to conduct the physical modeling and stress analysis of the demolition process of the reinforced concrete continuous box girder bridge.According to the calculation result,the demolition scheme was reviewed and the safety control measures were improved.This paper can guide the safe and fast demolition construction of similar bridge engineering.
关键词
天桥拆除/力学分析/安全控制措施Key words
overpass demolition/mechanical analysis/safety control measure引用本文复制引用
出版年
2024
NETL
NSTL
万方数据