【摘要】 目前公路桥梁中存在着大量预应力混凝土箱梁,研究和解决箱梁中的各种问题对发展我国国民经济有着重要的意义。文章在查阅大量文献资料和实桥资料的基础上,针对箱梁中存在的各种裂缝进行了分类和初步的成因分析。更多还原

【Abstract】 At the present time,there are a great deal of pre-stressed concrete box-beam in highway bridge. How to research and solve the problems in box-beam is very important to our country’s development of economy. The article classifies all kinds of crack in box-beam and analyzes basicly their cause after reading a great deal of literature datum and actual bridge datum.更多还原