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Construction method for continuous bridge and continuous slab bridge by connecting continuously upper concrete slab installed anchorage apparatus for unbonded steel strand
Construction method for continuous bridge and continuous slab bridge by connecting continuously upper concrete slab installed anchorage apparatus for unbonded steel strand
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机译：连续上部混凝土板安装无粘结钢绞线锚固装置连接连续桥和连续板桥的施工方法
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摘要
PURPOSE: A temporary installation method for a continuous bridge provided with an unbonded PS strand anchorage is provided to restrain the bending crack of an upper concrete slab by controlling negative moment effectively. CONSTITUTION: The temporary installation method for a continuous bridge provided with an unbonded PS strand anchorage(60) comprises the steps of: installing many piers(100) or abutments(101); placing many girders(50), one of an I-shaped beam, a PSC beam, a preflex beam and a re-prestressed preflex beam between the pier(100) and the pier(100) or the pier(100) and the abutment(101); completing an upper concrete slab(70) by installing a form where slab concrete places on the girders(50), installing an unbonded PS strand anchorage(60) in a form of a part where an upper concrete slab(70) is formed, placing slab concrete, then curing the surface and finishing the upper surface; and introducing tensile force to an unbonded PS strand of the unbonded PS strand anchorage(60) by a tension, then introducing a compressive force by anchoring both ends to projections of the unbonded PS strand anchorage(60) by an anchorage.
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