PSC RAHMEN BRIDGE WHERE THE PC STRAND TENSION ANCHORAGE WAS IMPROVED

摘要

PURPOSE: A PSC Rahmen bridge with an improved pc strand tension anchorage is provided to enable the common lifespan of a PSC Ramen bridge to be extended since the concrete cracks of a first tension anchorage and a second tension anchorage due to tensile force are prevented, and thus destruction of the anchorages is prevented. CONSTITUTION: A PSC Rahmen bridge(B) with an improved pc strand tension anchorage comprises abutments(10), slabs(20), a first tension anchor block(30) and a second tension anchor block(40). The abutments are arranged at regular intervals on both sides. The slabs are installed across the abutments. The first tension anchor block is located on cross section of both ends of the abutment, is extended outwardly and is horizontally protruded. The second tension anchor bloke is located on the top of both ends of the abutment and is upwardly protruded. A first tension anchorage(32) and a second tension anchorage(42) are installed on the first and second tension anchor blocks.