曹妃甸跨纳潮河大桥抗风稳定性分析

以曹妃句跨纳潮河大桥为背景，对三跨双塔单索面预应力混凝土宽桥面部分斜拉桥进行了动力特性和抗风稳定性分析，并进行了部分斜拉桥和相应连续梁桥的空间动力特性对比计算。结果表明，部分斜拉桥的力学特性接近连续梁桥，基本自振周期短，抗扭刚度大，抗风性能良好。

The stability analysis of Caofeidian across Chaohe Bridge resistance wind

Take the Caofeidian across Chaohe Bridge as a background, analysed the dynamic characteristics and wind resistance stability for three spans towers with single cable plane prestressed concrete cable-stayed wide deck bridge part. Make compared calculation for the part of cable-stayed bridge and the corresponding continuous girder bridge space dynamic characteristics. The results showed that the mechanical properties of the part cable-stayed bridge are close to continuous girder bridge, the basic self-vibration cycle is short, the wrest resistant stiffness big, the wind resistance is good.