The Cable-Stayed Bridge with the T - Structure Collaborative System Bridge Seismic Response Analysis

The main bridge of Guangdong jinma which is double cable planes concrete single tower cable-stayed bridge and T- rigid frame cooperative system,and causing great concern to the project owing to the practice successfully[1,2,3,4].This paper analysis Jinma Bridge with response spectrum method of seismic response in accordance with the objectives of the three standards of seismic resistance requirements .In order to ensure the calculation accuracy,before the previous 120 vibration mode superposition should be taken by adopting CQC（Complete Quadratic Combination）method in calculation of the response spectrum.