Brief introduction of bridge
West to Hedong Road, Fangcun Village, Liwan District. The whole system project consists of main bridge, east and west approach bridges, Changgang interchange and Guangzhong interchange, with a total length of 2440 meters. The main bridge is 648 meters long and 30.3 meters wide, with six lanes and two-way sidewalks (but there are no escalators for pedestrians to get up and down, and the approach bridge has no sidewalks. In fact, pedestrians can't pass. ), the bridge type is a composite cable-stayed bridge with twin towers and double cable planes, the main tower height is128.45m, the main span is 360m, the steel beam-reinforced concrete slab structure crosses the river, and the secondary spans on both sides are144m. The design load of the bridge is steam-over 20, suspension-120, and the seismic fortification is based on seven cracks. The design speed is 60 km/h and the navigable clear height is 34 meters. The length of the east approach bridge is1196m, and the length of the west approach bridge is 596m.
Historical investigation
Hedong Bridge was completed on 1998.
Before the completion of the bridge, citizens from Haizhu District to Fangcun, Foshan and other places in Liwan District need to take a ferry or pass through the Pearl River Bridge and the Pearl River Tunnel, which is not only a long way, but also a great traffic pressure. Therefore, the Guangzhou municipal government built this bridge to ease traffic congestion. When the bridge was completed, it was the longest span and the most complicated technology in Guangzhou.
During the period from 20 1 1 to 20 12, the ramp of this bridge needs to be closed for maintenance because of cracks. Statistics show that about 1400 trucks with a load of more than 30 tons pass through the bridge every day. In this regard, the bridge management unit said that overloaded trucks pose a threat to the safety of the bridge, but they have no right to investigate and deal with overloading.
Building structure
The total length of the bridge is 2300 meters, the main span is 360 meters, and the net navigation height under the bridge is 34 meters. The bridge deck is 30.3m wide, including 22.5m carriageway and 2m sidewalks on both sides. Because the bridge is a cable-stayed bridge, there are 144 stay cables on the bridge, and the longest one is 145 meters.
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