In order to master the dynamic characteristic of the prestressed concrete T-frame bridge,a dynamic test was carried out on this type bridge based on the normal method of dynamic loading test,which could provide some useful reference data for this type new bridge s design and the old ones reinforcement and maintenance.

By a actual engineering example in Leikou bridge, the design of prestressed concrete T-frame bridge hanging a beam.

The paper describes the contents of a quiescent load and racking load test for T-frame under the main bridge triangle truss and the periodic observation of the crack, the PC cable forces, the holistic change site of bridge and the displacement of deep soil of piles for Hongtang Bridge.

Application Study on HPC in Y Type Rigid Frame of Chong-qing Cai-yuanba Changjiang Bridge;

This paper introduced the construction characteristic and method of Y type rigid frame of Chong-qing Cai-yuanba Changjiang Bridge, and expatiated the construction plan, construction procedure, calculation and arrangement of construction trestle.

Application and analysis of level swing method of T rigid frame bridge;

The paper mainly introduced cantilever construction methods in the construction of T rigid frame and continuous beam bridge,including suspended wagon manufacturing and fixing,cantilever casting and prestress tensioning etc.

The construction of closure segment is an important step in the construction of pre-stressed concrete T rigid frame bridge and could have direct influences on the stressing conditions and geometry of the overall bridge.