A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a cable-stayed bridge and a construction method thereof. The construction method comprises the steps that a cable bent tower serves as the center, a construction interval of a beam body is defined along a main beam structure, the construction interval is divided into a plurality of construction sections, and each construction section is constructed towards the two sides of the length direction of the beam body at the same time with the cable bent tower as the center and is provided with a pair of inhaul cables; a partial beam body is formed after partial construction sections are constructed, in the remaining construction sections, the first end of the inhaul cable in at least one construction section is connected with the formed partial beam body, and the second end of the inhaul cable in at least one construction section is connected with a permanent counter-force supporting point at a side pier or another section of beam body adjacent to the partial beam body to form an opposite-pull inhaul cable; two ends of the opposite-pull cable are positioned on the same side of the cable bent tower; the beam body is closed; and the second end of the opposite-pull cable and the permanent counter-force supporting point at the side pier or the other section of the beam body are disassembled, and the second end is connected with the cable bent tower of the beam body where the first end of the opposite-pull cable is located. According to the method, the axial pressure of the main beam can be reduced, and the span limit of the cable-stayed bridge and the stability in the construction and use process are improved.
本发明公开了斜拉桥及其施工方法。该施工方法包括：以索塔为中心，沿主梁结构限定出梁体的施工区间，并将施工区间划分为多个施工节段，每个施工节段以索塔为中心向梁体长度方向的两侧同时施工且设有一对拉索；进行部分施工节段后形成部分梁体，在剩余施工节段中，使至少一个施工节段中的拉索的第一端与已形成的部分梁体相连、第二端与边墩处的永久反力支撑点或与该部分梁体相邻的另一段梁体相连形成对拉拉索，对拉拉索的两端位于索塔同侧；对梁体进行合龙；将对拉拉索的第二端与边墩处的永久反力支撑点或另一段梁体拆解，并将第二端与其第一端所在梁体的索塔相连。该方法可以降低主梁的轴向压力，提升斜拉桥的跨径极限和施工使用过程中的稳定性。
The invention discloses a cable-stayed bridge and a construction method thereof. The construction method comprises the steps that a cable bent tower serves as the center, a construction interval of a beam body is defined along a main beam structure, the construction interval is divided into a plurality of construction sections, and each construction section is constructed towards the two sides of the length direction of the beam body at the same time with the cable bent tower as the center and is provided with a pair of inhaul cables; a partial beam body is formed after partial construction sections are constructed, in the remaining construction sections, the first end of the inhaul cable in at least one construction section is connected with the formed partial beam body, and the second end of the inhaul cable in at least one construction section is connected with a permanent counter-force supporting point at a side pier or another section of beam body adjacent to the partial beam body to form an opposite-pull inhaul cable; two ends of the opposite-pull cable are positioned on the same side of the cable bent tower; the beam body is closed; and the second end of the opposite-pull cable and the permanent counter-force supporting point at the side pier or the other section of the beam body are disassembled, and the second end is connected with the cable bent tower of the beam body where the first end of the opposite-pull cable is located. According to the method, the axial pressure of the main beam can be reduced, and the span limit of the cable-stayed bridge and the stability in the construction and use process are improved.
本发明公开了斜拉桥及其施工方法。该施工方法包括：以索塔为中心，沿主梁结构限定出梁体的施工区间，并将施工区间划分为多个施工节段，每个施工节段以索塔为中心向梁体长度方向的两侧同时施工且设有一对拉索；进行部分施工节段后形成部分梁体，在剩余施工节段中，使至少一个施工节段中的拉索的第一端与已形成的部分梁体相连、第二端与边墩处的永久反力支撑点或与该部分梁体相邻的另一段梁体相连形成对拉拉索，对拉拉索的两端位于索塔同侧；对梁体进行合龙；将对拉拉索的第二端与边墩处的永久反力支撑点或另一段梁体拆解，并将第二端与其第一端所在梁体的索塔相连。该方法可以降低主梁的轴向压力，提升斜拉桥的跨径极限和施工使用过程中的稳定性。
Cable-stayed bridge and construction method thereof
斜拉桥及其施工方法
2023-07-07
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
CABLE-STAYED BRIDGE AND CABLE-STAYED BRIDGE CONSTRUCTION METHOD
| European Patent Office | 2020