Brief introduction of Yonghe Bridge.

Yonghe Bridge is also the crystallization of the creative wisdom of the working people of the ancient Han nationality, which has high scientific research value in the history of bridges. Three piers and four holes, wooden cantilever. Wood and stone structure. East-west strike, length 125.7, width 6.40-7.50m, elevation 13m.

The stone staggered flat pier has a total width of 2.80 meters, and there are fenshui geese wings in the south. The wooden beams on the pier are displayed in a two-way balanced way, extending step by step and laying the bridge deck vertically. There are 42 verandahs and double eaves on the bridge.

Beware of the roof rising. If you rest at the top of the mountain, the wing angle will rise. 199 1- 1999 was repaired and reinforced for many times. Yonghe bridge, prestressed concrete cable-stayed bridge. Kim Highway (Tianjin to Hangu) is located in Tianjin, China, across Yongding Xinhe Highway Bridge.

Built in 1987. The design seismic intensity is 8 degrees. The bridge is a five-span continuous beam with a total length of 512.4m and spans of 26.65, 438+05+99.85+260+99.85+26.55m.. The cantilever beam of the twin towers is 468m long, except for the cast-in-place end span (2m× 465,438+0.6m), the rest is 65,500.

Bridge deck width13.6m, beam height 2m, with air nozzle. The gate tower is 55.8 meters high and adopts slip form construction. The main pier adopts open caisson foundation, and other piers adopt high pile caps.

The Tangshan earthquake caused the bank slopes of Hangu Bridge and Luanhe Bridge to slip, and Yonghe Bridge was in a strong earthquake area. In order to prevent the abutment from sliding and damaging the main hole, the floating system of 5-hole continuous beam is selected.