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A platform for research: civil engineering, architecture and urbanism
Standardized construction method of steel inner core-UHPC (Ultra High Performance Concrete) combined box girder
The invention discloses a standardized construction method of a steel inner core-UHPC (Ultra High Performance Concrete) combined box girder. The standardized construction method comprises the following steps: S1, prefabricating steel inner core sections; s2, the steel inner core is hoisted to the position above the bottom die; s3, positioning steel bars are welded to studs on the outer surface of the steel inner core, and then a steel bar net is placed and bound; s4, the side die is installed on the bottom die; s5, the UHPC box girder is poured; s6, the poured prefabricated box girder is pushed forwards, the steel inner core of the next section of prefabricated box girder and the steel inner core of the poured prefabricated box girder are welded, and the steps S3-S5 are executed on the next section of prefabricated box girder; and S7, the step S6 is repeated until the whole bridge is pushed in place. The construction efficiency and the construction quality of the box girder are improved, use of large mechanical equipment in construction is reduced, the construction risk is reduced, construction of temporary prestressed inhaul cables and temporary piers in conventional box girder incremental launching construction is avoided, and then the overall construction quality and the construction efficiency of a bridge structure are improved.
本发明公开了一种钢内芯‑UHPC组合箱梁的标准化施工方法，包括以下步骤：S1：预制钢内芯节段；S2：将钢内芯吊装至底模上方；S3：将定位钢筋焊接至钢内芯外表面上的栓钉上，然后进行钢筋网的摆放和绑扎；S4：将侧模安装至底模上；S5：浇筑UHPC箱梁；S6：浇筑完成的预制箱梁向前顶推，将下一节预制箱梁的钢内芯与浇筑完成的预制箱梁的钢内芯焊接，对下一节预制箱梁执行步骤S3‑S5；S7：重复步骤S6，直至全桥顶推到位。本发明提高了箱梁的施工效率和施工质量，减少了施工中大型机械设备的使用，降低了施工风险，避免了常规箱梁顶推施工中临时预应力拉索和临时墩的建设，进而提高桥梁结构整体施工质量和施工效率。
Standardized construction method of steel inner core-UHPC (Ultra High Performance Concrete) combined box girder
The invention discloses a standardized construction method of a steel inner core-UHPC (Ultra High Performance Concrete) combined box girder. The standardized construction method comprises the following steps: S1, prefabricating steel inner core sections; s2, the steel inner core is hoisted to the position above the bottom die; s3, positioning steel bars are welded to studs on the outer surface of the steel inner core, and then a steel bar net is placed and bound; s4, the side die is installed on the bottom die; s5, the UHPC box girder is poured; s6, the poured prefabricated box girder is pushed forwards, the steel inner core of the next section of prefabricated box girder and the steel inner core of the poured prefabricated box girder are welded, and the steps S3-S5 are executed on the next section of prefabricated box girder; and S7, the step S6 is repeated until the whole bridge is pushed in place. The construction efficiency and the construction quality of the box girder are improved, use of large mechanical equipment in construction is reduced, the construction risk is reduced, construction of temporary prestressed inhaul cables and temporary piers in conventional box girder incremental launching construction is avoided, and then the overall construction quality and the construction efficiency of a bridge structure are improved.
本发明公开了一种钢内芯‑UHPC组合箱梁的标准化施工方法，包括以下步骤：S1：预制钢内芯节段；S2：将钢内芯吊装至底模上方；S3：将定位钢筋焊接至钢内芯外表面上的栓钉上，然后进行钢筋网的摆放和绑扎；S4：将侧模安装至底模上；S5：浇筑UHPC箱梁；S6：浇筑完成的预制箱梁向前顶推，将下一节预制箱梁的钢内芯与浇筑完成的预制箱梁的钢内芯焊接，对下一节预制箱梁执行步骤S3‑S5；S7：重复步骤S6，直至全桥顶推到位。本发明提高了箱梁的施工效率和施工质量，减少了施工中大型机械设备的使用，降低了施工风险，避免了常规箱梁顶推施工中临时预应力拉索和临时墩的建设，进而提高桥梁结构整体施工质量和施工效率。
Standardized construction method of steel inner core-UHPC (Ultra High Performance Concrete) combined box girder
一种钢内芯-UHPC组合箱梁的标准化施工方法
LI PANPAN (author) / SHAO XUDONG (author) / YU MAN (author) / WAN GUOQIANG (author) / LIU BIN (author) / YANG YUNYI (author)
2024-01-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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