A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Full-concrete sling stiffening girder bridge structure and construction method
The invention discloses a full-concrete sling stiffening beam bridge structure and a construction method, each sling is equally divided into a plurality of sections and forms a stress whole through tensioning of a plurality of sling steel strands, and a prefabricated node block is arranged at the position connected with each suspender; each suspender is of a rigid structure formed by wrapping UHPC (Ultra High Performance Concrete) outside a plurality of suspender steel strands; a reserved corrugated pipe is arranged in each prefabricated node block and corresponds to each corresponding suspender knot steel strand, the corresponding suspender knot steel strand is tensioned in each reserved corrugated pipe, and the corresponding suspender knot steel strand is poured with a UHPC material to be in anchor-head-free connection with the corresponding suspender; and the main beam anchors each suspender knot steel strand through a plurality of anchoring heads. During construction, the main girder bridge tower is firstly constructed; and then a sling and a corresponding suspender are constructed. The structural performance of the beam bridge is improved, the influence of the height of the bridge structure on the clearance under the bridge is reduced, and the later maintenance cost of the steel structure stiffening bridge can be further reduced.
本发明公开了全混凝土悬带加劲梁桥结构及施工方法，每一悬带均分成多个节段并通过多根悬带钢绞线张拉形成一个受力整体，与每一吊杆连接的位置均为预制节点块；每一吊杆均为多根吊杆钢绞线外包UHPC超高韧性混凝土的刚性结构；每一预制节点块内对应相应的每一吊杆结钢绞线均设有预留波纹管，通过在每一预留波纹管内张拉相应的吊杆结钢绞线，并灌注UHPC材料与相应的吊杆进行无锚头连接；主梁通过多个锚固头锚固每一吊杆结钢绞线。施工时，先施工主梁桥塔；然后施工悬带和相应吊杆。本发明提升梁桥的结构性能，降低桥梁结构高度对桥下净空的影响，还能够进一步降低钢结构加劲桥的后期养护成本。
Full-concrete sling stiffening girder bridge structure and construction method
The invention discloses a full-concrete sling stiffening beam bridge structure and a construction method, each sling is equally divided into a plurality of sections and forms a stress whole through tensioning of a plurality of sling steel strands, and a prefabricated node block is arranged at the position connected with each suspender; each suspender is of a rigid structure formed by wrapping UHPC (Ultra High Performance Concrete) outside a plurality of suspender steel strands; a reserved corrugated pipe is arranged in each prefabricated node block and corresponds to each corresponding suspender knot steel strand, the corresponding suspender knot steel strand is tensioned in each reserved corrugated pipe, and the corresponding suspender knot steel strand is poured with a UHPC material to be in anchor-head-free connection with the corresponding suspender; and the main beam anchors each suspender knot steel strand through a plurality of anchoring heads. During construction, the main girder bridge tower is firstly constructed; and then a sling and a corresponding suspender are constructed. The structural performance of the beam bridge is improved, the influence of the height of the bridge structure on the clearance under the bridge is reduced, and the later maintenance cost of the steel structure stiffening bridge can be further reduced.
本发明公开了全混凝土悬带加劲梁桥结构及施工方法，每一悬带均分成多个节段并通过多根悬带钢绞线张拉形成一个受力整体，与每一吊杆连接的位置均为预制节点块；每一吊杆均为多根吊杆钢绞线外包UHPC超高韧性混凝土的刚性结构；每一预制节点块内对应相应的每一吊杆结钢绞线均设有预留波纹管，通过在每一预留波纹管内张拉相应的吊杆结钢绞线，并灌注UHPC材料与相应的吊杆进行无锚头连接；主梁通过多个锚固头锚固每一吊杆结钢绞线。施工时，先施工主梁桥塔；然后施工悬带和相应吊杆。本发明提升梁桥的结构性能，降低桥梁结构高度对桥下净空的影响，还能够进一步降低钢结构加劲桥的后期养护成本。
Full-concrete sling stiffening girder bridge structure and construction method
全混凝土悬带加劲梁桥结构及施工方法
LU YUANCHUN (author) / WU LIANSHENG (author) / LI DEYAO (author) / WANG DADONG (author) / HUANG ZIJIE (author) / ZHONG YAN (author) / SHA LIXIN (author) / YAN YUE (author) / QIAN YIQING (author) / WU HUAKAI (author)
2023-03-07
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Suspension bridge stiffening girder construction apparatus
European Patent Office | 2018
Suspension bridge stiffening girder construction apparatus
| European Patent Office | 2018