A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Deck type arch bridge arch foot reinforcing method based on cable structure
The invention relates to the technical field of deck type arch bridge reinforcement, and particularly discloses a deck type arch bridge arch foot reinforcement method based on a cable structure, which is characterized by comprising the following steps of: (1) slotting a bridge floor above arch ribs on two side edges of a main arch ring along the length direction of the bridge floor, and extending two ends of the slot to bridge abutments at two ends of an arch bridge; (2) two cables are embedded into the groove, and the two cables are located on the same axis; (3) connecting and fixing one ends of the two cables with the vault of the side arch rib; and (4) the other ends of the two cables are connected to bridge abutments at the two ends of the arch bridge respectively, and pre-tension force is applied through a jack to enable the cables to be in a tensioned state and anchored to the bridge abutments. According to the deck type arch bridge arch foot reinforcing method based on the cable structure, on the premise that dead load is not increased, the technical problem that cracks and other diseases occur due to the fact that the hogging moment of the arch foot of the main arch ring is too large can be effectively solved, the purpose of arch bridge reinforcing is achieved, construction is convenient, simple and reliable, and the reinforcing effect is good.
本发明涉及上承式拱桥加固技术领域，其具体公开了基于索结构的上承式拱桥拱脚加固方法，其特征在于，包括以下步骤：(1)沿桥面的长度方向，在主拱圈两侧边拱肋上方的桥面开槽，槽的两端延伸至拱桥两端的桥台；(2)在槽中嵌入两条索，且两条索处于同一轴线上；(3)将两条索的一端与边拱肋的拱顶连接固定；(4)将两条索的另一端分别连接至拱桥两端的桥台，通过千斤顶施加预拉力使索处于张紧状态并锚固在桥台上。本发明的基于索结构的上承式拱桥拱脚加固方法，在不增加恒载的前提下能够有效地解决因主拱圈拱脚负弯矩过大出现裂缝等病害的技术难题，从而达到拱桥加固的目的，施工方便、简单可靠、加固效果良好。
Deck type arch bridge arch foot reinforcing method based on cable structure
The invention relates to the technical field of deck type arch bridge reinforcement, and particularly discloses a deck type arch bridge arch foot reinforcement method based on a cable structure, which is characterized by comprising the following steps of: (1) slotting a bridge floor above arch ribs on two side edges of a main arch ring along the length direction of the bridge floor, and extending two ends of the slot to bridge abutments at two ends of an arch bridge; (2) two cables are embedded into the groove, and the two cables are located on the same axis; (3) connecting and fixing one ends of the two cables with the vault of the side arch rib; and (4) the other ends of the two cables are connected to bridge abutments at the two ends of the arch bridge respectively, and pre-tension force is applied through a jack to enable the cables to be in a tensioned state and anchored to the bridge abutments. According to the deck type arch bridge arch foot reinforcing method based on the cable structure, on the premise that dead load is not increased, the technical problem that cracks and other diseases occur due to the fact that the hogging moment of the arch foot of the main arch ring is too large can be effectively solved, the purpose of arch bridge reinforcing is achieved, construction is convenient, simple and reliable, and the reinforcing effect is good.
本发明涉及上承式拱桥加固技术领域，其具体公开了基于索结构的上承式拱桥拱脚加固方法，其特征在于，包括以下步骤：(1)沿桥面的长度方向，在主拱圈两侧边拱肋上方的桥面开槽，槽的两端延伸至拱桥两端的桥台；(2)在槽中嵌入两条索，且两条索处于同一轴线上；(3)将两条索的一端与边拱肋的拱顶连接固定；(4)将两条索的另一端分别连接至拱桥两端的桥台，通过千斤顶施加预拉力使索处于张紧状态并锚固在桥台上。本发明的基于索结构的上承式拱桥拱脚加固方法，在不增加恒载的前提下能够有效地解决因主拱圈拱脚负弯矩过大出现裂缝等病害的技术难题，从而达到拱桥加固的目的，施工方便、简单可靠、加固效果良好。
Deck type arch bridge arch foot reinforcing method based on cable structure
基于索结构的上承式拱桥拱脚加固方法
YANG TAO (author) / LI CHUNHUA (author) / HAO TIANZHI (author) / LONG XIAYI (author) / CHEN MING YU (author) / CHEN QIFENG (author) / NING JIEJUN (author) / CHEN XIAOMING (author)
2023-01-13
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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