• 1. connection side span: 连接边节距
• 2. non-connection side span: 非连接边节距

• 1.The upper end of the side arches (5) has the rigid connection with the side span girders and the lower end has the rigid connection with the main piers (9).
  所述边拱(5)上端与边跨主梁刚性连接，下端与主桥墩(9)刚性连接。
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