| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solid viaduct structure capable of simplifying a structure format of a half-split arch beam, a cross beam, and a slab, and suppressing the height of the viaduct while reducing a number of components, improving work efficiency, and simplifying a connection method. <P>SOLUTION: A solid viaduct structure 10 comprises a concrete bridge pier 16 erected on the ground or the foundation, a precast vertical beam built and supported on the bridge pier 16 in a bridge axial direction, and a precast concrete slab 20 built on the vertical beam in a direction intersecting the bridge axis. The vertical beam is a semi-split arch beam 18 having a mounting portion 24 to the bridge pier 16, and a pair of half-split arch portions 26 having a plane upper surface and a lower surface divided half by an arch top portion extending from the mounting portion 24 to both sides. The slab 20 is integrally provided with a cross beam built in the direction intersecting the bridge pier on the vertical beam, and comprises a first slab member 28 built at an upper surface center portion of the half-split arch beam 18, and a second slab member 30 built on a vertical beam upper surface except for the upper surface center portion of the half-split arch beam 18. <P>COPYRIGHT: (C)2012,JPO&INPIT |
