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A platform for research: civil engineering, architecture and urbanism
Large-span steel beam erecting construction method
The large-span steel beam erecting construction method comprises the following steps that a front supporting leg and a middle supporting leg are fixed to a bridge floor, a crown block is moved to a first position to serve as a balance weight, a main truss is driven to move forwards, and first-time hole passing is completed; moving the crown block towards the direction of the tail supporting leg to a second position for counterweight, releasing the fixation of the middle supporting leg, driving the middle supporting leg to move towards the front supporting leg by a first preset distance, fixing the middle supporting leg with the bridge floor, driving the main truss to move forwards, and completing second-time hole passing; and so on, until the front temporary supporting leg on the main truss reaches the position of the bent cap; fixing of the middle supporting leg is relieved, and the middle supporting leg is driven to move to be close to the front supporting leg; fixing of the front supporting legs is relieved, and the front supporting legs are driven to move towards the front temporary supporting legs and are borne on the bent cap; and erecting the steel beam by using a crown block. Through two-time hole passing, the utilization rate of the main truss is increased when the steel beam is erected, the erecting span is larger, and then the construction efficiency can be improved.
本申请涉及一种大跨度钢梁架设施工方法，其包括如下步骤：使前支腿、中支腿与桥面固定，将天车移动到第一位置做配重，驱使主桁架前移，完成第一次过孔；将天车朝尾部支腿所在方向，移动至第二位置做配重，解除中支腿的固定，并驱使中支腿朝前支腿移动第一预设距离，并与桥面固定，驱使主桁架前移，完成第二次过孔；以此类推，直至主桁架上的前临时支腿到达盖梁位置处；解除中支腿的固定，并驱使中支腿移动至靠近前支腿；解除前支腿的固定，并驱使前支腿朝前临时支腿移动，并承载于盖梁上；利用天车，进行钢梁架设。本发明通过两次过孔，进行钢梁架设时提高了主桁架的利用率，架设跨度更大，进而能提高施工的效率。
Large-span steel beam erecting construction method
The large-span steel beam erecting construction method comprises the following steps that a front supporting leg and a middle supporting leg are fixed to a bridge floor, a crown block is moved to a first position to serve as a balance weight, a main truss is driven to move forwards, and first-time hole passing is completed; moving the crown block towards the direction of the tail supporting leg to a second position for counterweight, releasing the fixation of the middle supporting leg, driving the middle supporting leg to move towards the front supporting leg by a first preset distance, fixing the middle supporting leg with the bridge floor, driving the main truss to move forwards, and completing second-time hole passing; and so on, until the front temporary supporting leg on the main truss reaches the position of the bent cap; fixing of the middle supporting leg is relieved, and the middle supporting leg is driven to move to be close to the front supporting leg; fixing of the front supporting legs is relieved, and the front supporting legs are driven to move towards the front temporary supporting legs and are borne on the bent cap; and erecting the steel beam by using a crown block. Through two-time hole passing, the utilization rate of the main truss is increased when the steel beam is erected, the erecting span is larger, and then the construction efficiency can be improved.
本申请涉及一种大跨度钢梁架设施工方法，其包括如下步骤：使前支腿、中支腿与桥面固定，将天车移动到第一位置做配重，驱使主桁架前移，完成第一次过孔；将天车朝尾部支腿所在方向，移动至第二位置做配重，解除中支腿的固定，并驱使中支腿朝前支腿移动第一预设距离，并与桥面固定，驱使主桁架前移，完成第二次过孔；以此类推，直至主桁架上的前临时支腿到达盖梁位置处；解除中支腿的固定，并驱使中支腿移动至靠近前支腿；解除前支腿的固定，并驱使前支腿朝前临时支腿移动，并承载于盖梁上；利用天车，进行钢梁架设。本发明通过两次过孔，进行钢梁架设时提高了主桁架的利用率，架设跨度更大，进而能提高施工的效率。
Large-span steel beam erecting construction method
一种大跨度钢梁架设施工方法
MA TIANLIANG (author) / WAN MINGMIN (author) / WANG HAIPING (author) / ZHAO JIALI (author) / CHEN ZONGHUI (author) / XIE ZHENGSONG (author) / YANG YUANDU (author) / WANG YONGQING (author) / CHEN WENJUN (author)
2023-03-14
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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