T structure closure pouring method for mountainous-area high-pier large-span continuous rigid-frame bridge

• Main Authors: LIU YUXING, BAI SHAN, SHEN QIANG, ZHAO ZHANCHAO, ZHU ZENGHUI, HE XIAOBING, YUAN WANGXIAO, MAO SUIFENG, XU YONG
• Format: Patent
• Language: Chinese; English
• Published: 14.07.2017
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

The invention discloses a T structure closure pouring method for a mountainous-area high-pier large-span continuous rigid-frame bridge. Before T structure closure pouring, weights are loaded at the cantilever ends of T structures to enable the cantilever ends of the two sides of T structure mid-span enclose sections to generate large longitudinal horizontal displacement towards to the two side-span directions so as to compensate shrinkage and creep and horizontal displacement generated due to later-period whole temperature reduction; the high-pier large-span characteristics are combined, adverse influence, on the continuous rigid-frame bridge internal force and deflection, of concrete shrinkage, creep and the temperature effect which are caused due to the effect of long-term load is reduced, and mid-span mid span bottom bending caused due to the influence of concrete shrinkage and creep is avoided; and weight bodies can obtain materials from local sources, pushing is not needed, simple and feasible effects ar