摘要
针对无粘结预应力混凝土空心板桥,利用有限元软件进行数值模拟,比较分析不同尺寸的环孔、方孔和横槽在表面混凝土应力释放为零时的最小切割深度,为该类桥梁混凝土现存预应力检测提供参考。
Aiming at no bonding pre-stress concrete cored slab bridge, this paper utilizes finite element software for numerical simulation, compares and analyzes the minimal cutting depth of ring openings, square openings and translots of different dimensions as the stress release of surface concrete is up to zero, providing the reference for existing prestress detection of such bridges.
出处
《公路交通技术》
2008年第6期81-83,92,共4页
Technology of Highway and Transport
关键词
无粘结空心板
现存预应力
应力释放
no bonding cored slab
existing prestress
stress release
