Hollow slab bridge comprehensive reinforcing system based on UHPC and retard-bonded steel strands

• Main Authors: SUN HU, DU YINGUANG, LING ZHIHAN, REN ZHIQIN, LIU ZHANG, CHENG KUN, HUANG YUEBIN, WU QIANGQIANG, HUANG KAOQU, XU WENYU
• Format: Patent
• Language: Chinese; English
• Published: 02.11.2021
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

The utility model relates to a hollow slab bridge comprehensive reinforcing system based on UHPC and retard-bonded steel strands. The hollow slab bridge comprehensive reinforcing system comprises a plurality of hollow slabs, hinge joints are formed between the adjacent hollow slabs, formworks are assembled at the bottoms of the hollow slabs, reinforcement cage assemblies are installed on the formworks, UHPC cast-in-place layers are poured in the formworks, grouting pipes are inserted into the hinge joints, and the grouting pipes extend into the formworks; the utility model belongs to a comprehensive reinforcing system of the hollow slab, the bending resistance bearing capacity of the hollow slab is improved through the good tensile property of the UHPC cast-in-place layer, and meanwhile the transverse integrity of the hollow slab bridge is improved through the UHPC cast-in-place layer and transverse tension prestress. 本发明涉及一种基于UHPC与缓粘结钢绞线的空心板桥综合加固系统，包括若干空心板，相邻空心板之间形成有铰缝，空心板底部装配有模板，模板安装有钢筋骨架组件，模板内浇筑有UHPC现浇层，铰缝