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A platform for research: civil engineering, architecture and urbanism
Construction method of continuous rigid frame bridge
The invention, which relates to the technical field of continuous rigid frame construction, discloses a construction method of a continuous rigid frame bridge. N piers are arranged successively; and 0# blocks on the piers comprise A0 type blocks and B0 type blocks. The construction method comprises the following steps: constructing pile foundations, bearing platforms and pier bodies; building 0#block supports on the N-2 bridge piers in the middle, and constructing corresponding A0 type 0# blocks and B0 type 0# blocks respectively; dismounting the 0# block supports, symmetrically assembling hanging baskets on two sides of the A0 type 0# blocks and the B0 type 0# blocks, and erecting a side-span straight-line-section cast-in-place bracket; sequentially and symmetrically constructing main beam sections to the maximum main beam cantilever section in a cantilever manner; gradually constructing closure sections according to the principle of firstly side-span and then middle-span to finishclosure of the main beams; after closing of the adjacent side spans of the side piers and the uniform gaps between the B0 type 0# blocks, cutting off temporary filling devices between the gaps, and meanwhile, cutting off the temporary tensioning prestress of the side spans; removing the hanging baskets, and laying a bridge floor and the like. According to the method, a large number of temporary facilities are prevented from being built and detached, the construction time is saved, and the construction safety is improved.
本发明涉及连续刚构施工技术领域，公开了一种连续刚构桥的施工方法，包括依次设置的N个桥墩，桥墩上的0#块包括A0类和B0类，其施工方法以下步骤：施工桩基、承台和墩身；对中间N‑2个桥墩搭设0#块支架，并分别施工相应的A0类和B0类0#块；拆除0#块支架，同时在A0类0#块、B0类0#块的两侧对称拼装挂篮，并搭设边跨直线段现浇支架；依次悬臂对称施工主梁节段至主梁最大悬臂节段；按先边跨后中跨的原则逐步施工合龙段，完成主梁合龙；待边墩相邻边跨及B0类0#块之间的均缝隙合龙后切除缝隙间的临时填充装置，同时剪断边跨临时张拉预应力；拆除挂篮，进行桥面铺设等工作。本发明避免了大量的临时设施的搭建与拆除，节约施工时间，提高了施工安全。
Construction method of continuous rigid frame bridge
The invention, which relates to the technical field of continuous rigid frame construction, discloses a construction method of a continuous rigid frame bridge. N piers are arranged successively; and 0# blocks on the piers comprise A0 type blocks and B0 type blocks. The construction method comprises the following steps: constructing pile foundations, bearing platforms and pier bodies; building 0#block supports on the N-2 bridge piers in the middle, and constructing corresponding A0 type 0# blocks and B0 type 0# blocks respectively; dismounting the 0# block supports, symmetrically assembling hanging baskets on two sides of the A0 type 0# blocks and the B0 type 0# blocks, and erecting a side-span straight-line-section cast-in-place bracket; sequentially and symmetrically constructing main beam sections to the maximum main beam cantilever section in a cantilever manner; gradually constructing closure sections according to the principle of firstly side-span and then middle-span to finishclosure of the main beams; after closing of the adjacent side spans of the side piers and the uniform gaps between the B0 type 0# blocks, cutting off temporary filling devices between the gaps, and meanwhile, cutting off the temporary tensioning prestress of the side spans; removing the hanging baskets, and laying a bridge floor and the like. According to the method, a large number of temporary facilities are prevented from being built and detached, the construction time is saved, and the construction safety is improved.
本发明涉及连续刚构施工技术领域，公开了一种连续刚构桥的施工方法，包括依次设置的N个桥墩，桥墩上的0#块包括A0类和B0类，其施工方法以下步骤：施工桩基、承台和墩身；对中间N‑2个桥墩搭设0#块支架，并分别施工相应的A0类和B0类0#块；拆除0#块支架，同时在A0类0#块、B0类0#块的两侧对称拼装挂篮，并搭设边跨直线段现浇支架；依次悬臂对称施工主梁节段至主梁最大悬臂节段；按先边跨后中跨的原则逐步施工合龙段，完成主梁合龙；待边墩相邻边跨及B0类0#块之间的均缝隙合龙后切除缝隙间的临时填充装置，同时剪断边跨临时张拉预应力；拆除挂篮，进行桥面铺设等工作。本发明避免了大量的临时设施的搭建与拆除，节约施工时间，提高了施工安全。
Construction method of continuous rigid frame bridge
一种连续刚构桥的施工方法
HE YONGQUAN (author) / HU XIAOJUN (author) / WANG HANBIN (author) / CUI TAO (author) / RONG YUE (author) / WANG HAO (author) / CHEN HONGBO (author) / TU ZHENGBIN (author) / JIANG MINFENG (author)
2020-07-10
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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