A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Large-span self-anchored suspension bridge rear-anchored concrete beam forming method
The invention provides a large-span self-anchored suspension bridge post-anchored concrete beam forming method which comprises the following steps: firstly, erecting a cast-in-place bracket, placing a sand box, pouring an anchored section, and pushing a steel box beam in place; then, a stay cable is installed at the end, close to the closure opening, of the non-cast-in-place steel box girder, and the position of the closure opening is adjusted and locked; carrying out closure construction on the anchoring section main beam; falling into a sand box; the supporting system of the closure section part is dismantled; forming a cable-stayed bridge; then pile heads are lengthened, and an anchor span section main beam support is erected; an anchor span section main beam is poured; removing the anchor span section bracket; and finally, mounting a sling, and carrying out system conversion to finish construction. Cast-in-place of an anchoring section and an anchoring span section is completed through a cast-in-place support, then a bridge main cable is scattered and anchored on an anchoring cross beam after passing through a cable scattering hole of a top plate of the anchoring section, the anchoring cross beam evenly disperses the force of the main cable to the section of a concrete beam of the anchoring section, and after a main beam is erected, the main cable is fixed. The construction of the whole large-span suspension bridge is completed by installing and replacing a cable-stayed and suspended cable system, and the operability is high.
本发明创造提供了一种大跨度自锚式悬索桥后锚混凝土梁成桥方法，先架设现浇支架，放置砂箱并浇筑锚固段，顶推钢箱梁到位；然后将斜拉索安装非现浇钢箱梁靠近合拢口的端部，调整合拢口位置并锁定；锚固段主梁合龙施工；落沙箱；拆除合龙段部分的支撑体系；斜拉桥成桥；然后接长桩头，架设锚跨段主梁支架；浇筑锚跨段主梁；再进行锚跨段支架拆除；最后吊索安装，进行体系转换，完成施工。本发明先通过现浇支架完成对锚固段及锚跨段的现浇，然后大桥主缆通过锚固段顶板散索孔后，散开锚固在锚固横梁上，锚固横梁将主缆力均匀分散到锚固段混凝土梁截面上，待主梁架设完毕后，进行斜拉与悬索的体系装换完成整座大跨悬索桥的建造，可操作性强。
Large-span self-anchored suspension bridge rear-anchored concrete beam forming method
The invention provides a large-span self-anchored suspension bridge post-anchored concrete beam forming method which comprises the following steps: firstly, erecting a cast-in-place bracket, placing a sand box, pouring an anchored section, and pushing a steel box beam in place; then, a stay cable is installed at the end, close to the closure opening, of the non-cast-in-place steel box girder, and the position of the closure opening is adjusted and locked; carrying out closure construction on the anchoring section main beam; falling into a sand box; the supporting system of the closure section part is dismantled; forming a cable-stayed bridge; then pile heads are lengthened, and an anchor span section main beam support is erected; an anchor span section main beam is poured; removing the anchor span section bracket; and finally, mounting a sling, and carrying out system conversion to finish construction. Cast-in-place of an anchoring section and an anchoring span section is completed through a cast-in-place support, then a bridge main cable is scattered and anchored on an anchoring cross beam after passing through a cable scattering hole of a top plate of the anchoring section, the anchoring cross beam evenly disperses the force of the main cable to the section of a concrete beam of the anchoring section, and after a main beam is erected, the main cable is fixed. The construction of the whole large-span suspension bridge is completed by installing and replacing a cable-stayed and suspended cable system, and the operability is high.
本发明创造提供了一种大跨度自锚式悬索桥后锚混凝土梁成桥方法，先架设现浇支架，放置砂箱并浇筑锚固段，顶推钢箱梁到位；然后将斜拉索安装非现浇钢箱梁靠近合拢口的端部，调整合拢口位置并锁定；锚固段主梁合龙施工；落沙箱；拆除合龙段部分的支撑体系；斜拉桥成桥；然后接长桩头，架设锚跨段主梁支架；浇筑锚跨段主梁；再进行锚跨段支架拆除；最后吊索安装，进行体系转换，完成施工。本发明先通过现浇支架完成对锚固段及锚跨段的现浇，然后大桥主缆通过锚固段顶板散索孔后，散开锚固在锚固横梁上，锚固横梁将主缆力均匀分散到锚固段混凝土梁截面上，待主梁架设完毕后，进行斜拉与悬索的体系装换完成整座大跨悬索桥的建造，可操作性强。
Large-span self-anchored suspension bridge rear-anchored concrete beam forming method
一种大跨度自锚式悬索桥后锚混凝土梁成桥方法
YU SHAOBIN (author) / GAI QINGSHAN (author) / ZHU LINDA (author) / WANG QIANG (author) / GONG GUOFENG (author) / GUO WANLIANG (author) / YU LONGBO (author) / WU LONGQING (author) / CHEN YINGLIANG (author) / LI MINGZE (author)
2024-01-05
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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