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分析斜拉桥的受力情况和特点，进而介绍一种改善斜拉桥结构受力的新方法，在行车道下面附加拉索，并进行预张拉，从而减少桥面变形。
This paper analyzes the stress conditions and characteristics of the cable-stayed bridge, and then introduces a new method to improve the stress of the cable-stayed bridge structure. The cable is added under the traffic lane and pre-tensioned to reduce the deformation of the bridge deck.