滦河公路桥位于河北省滦县城关东郊。是国内第一座按10度高烈度设防的预应力混凝土连续梁公路桥。桥全长979.51m,上部结构由6联24孔连续梁组成,每联为4×40mT型梁。每孔设4片主梁,桥宽9m。下部结构基础为钻孔灌注桩高桩承台;U型桥台;边墩为钢筋混凝土空心墩,中墩为实体墩。按规范9度适当增大水平地震系数进行抗震设计,并考虑纵横向与竖向综合设防。全桥分为6个独立“单元”设计,以避免一孔破坏而株连全桥。主梁支承采用滑动盆式支座以形成“漂浮体系”;梁端与桥台间设有D型橡胶护弦,用以减震消能。于1978年7月1日正式通车。
交通部公路规划设计院设计,交通部第一工程局施工。
Location: Ruanxian, hebei Prov.
Main span: 40m
· P.C. continuous highway bridge firstly considering high seismic intensity(10°)in design
· Superstructure: 6 series of 4×40m T-girders
· Substructure: Elevated boring piles foundation
Completed in July 1978
Designed by Highway Planning and Design Institute, Ministry of Communications
Constructed by the 1st Engineering Bureau, Ministry of Communications