A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Splay cable band construction process for gravity type anchorage of large-span suspension bridge
The invention relates to the field of bridge construction, in particular to a splay cable band construction process for for a gravity type anchorage of a large-span suspension bridge. The constructionprocess is characterized by comprising the following steps of: firstly, mounting a splay cable band base and a lower band, pre-mounting a splay cable band upper band after a main cable passes througha lower band groove to be initially in place, applying initial stress by a pull rod, conducting loading step by step by installing a main bridge stiffening beam in a staged mode to change the tensionof the main cable, in the process, using a jack for gradually adjusting the splay cable band upper band, matching a splay cable band head cable clamp and a strand clamping device to reset the main cable at the end of the splay cable band, conducting multiple times of adjustment to enable the porosity of the splay cable band upper band and the splay cable band lower band to reach a standard, and gradually adjusting the tightening force of the splay cable band pull rod in place.
本发明涉及桥梁施工领域，具体是一种大跨径悬索桥重力式锚碇采用散索套施工工艺，其特征在于先安装散索套基座及下套，主缆通过下套槽初步就位后，预安装散索套上套，拉杆施加初应力，然后通过分阶段安装主桥加劲梁分步骤进行加载，使主缆张力产生变化，在此过程中使用千斤顶逐步对散索套上套进行调整，并配合散索套头部索夹及夹股器使散索套端头部位主缆复位，通过多次调整，散索套上、下套空隙率达标，散索套拉杆上紧力逐步调整到位。
Splay cable band construction process for gravity type anchorage of large-span suspension bridge
The invention relates to the field of bridge construction, in particular to a splay cable band construction process for for a gravity type anchorage of a large-span suspension bridge. The constructionprocess is characterized by comprising the following steps of: firstly, mounting a splay cable band base and a lower band, pre-mounting a splay cable band upper band after a main cable passes througha lower band groove to be initially in place, applying initial stress by a pull rod, conducting loading step by step by installing a main bridge stiffening beam in a staged mode to change the tensionof the main cable, in the process, using a jack for gradually adjusting the splay cable band upper band, matching a splay cable band head cable clamp and a strand clamping device to reset the main cable at the end of the splay cable band, conducting multiple times of adjustment to enable the porosity of the splay cable band upper band and the splay cable band lower band to reach a standard, and gradually adjusting the tightening force of the splay cable band pull rod in place.
本发明涉及桥梁施工领域，具体是一种大跨径悬索桥重力式锚碇采用散索套施工工艺，其特征在于先安装散索套基座及下套，主缆通过下套槽初步就位后，预安装散索套上套，拉杆施加初应力，然后通过分阶段安装主桥加劲梁分步骤进行加载，使主缆张力产生变化，在此过程中使用千斤顶逐步对散索套上套进行调整，并配合散索套头部索夹及夹股器使散索套端头部位主缆复位，通过多次调整，散索套上、下套空隙率达标，散索套拉杆上紧力逐步调整到位。
Splay cable band construction process for gravity type anchorage of large-span suspension bridge
大跨径悬索桥重力式锚碇采用散索套施工工艺
WANG ZAIHANG (author) / CHANG WEN (author) / ZHANG CUNHUA (author) / ZHANG YONGGUI (author) / MA JIACHUN (author)
2021-01-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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