�@ Œf�ÚŽGŽ��i˜a�j�F �\‘¢�HŠw˜_•¶�W A Vol�F 37-3Šª ”N�F 1991”N •Å�F 1283-1291•Å ’˜ŽÒ�i˜a�j�F �…Žæ�@˜a�K�C‘å’Ë�@‹v“N�CŽR‰Ô�@–L ƒ^ƒCƒgƒ‹�i˜a�j�F •”’莮�EŽ–’莮PCŽÎ’£‹´‚Ì’e‘Y�«’n�k‰ž“š“Á�« �´˜^�i˜a�j�F
- ƒL�[ƒ��[ƒh�i˜a�j�F - Œf�ÚŽGŽ��i‰p�j�F Journal of Structural Engineering A ’˜ŽÒ�i‰p�j�F Kazuyuki MIZUTORI,Hisanori OTSUKA,Yutaka YAMAHANA ƒ^ƒCƒgƒ‹�i‰p�j�F ELASTO-PLASTIC EARTHQUAKE RESPONSE OF PRESTRESSED CONCRETE CABLE-STAYED BRIDGES WITH SELF AND PARTIAL ANCHORAGES �´˜^�i‰p�j�F
In order to investigate the earthquake response of PC cable-stayed bridges with self and partial anchorages, both elastic and elasto-plastic analysises for cable-stayed bridges with 200m center span subjected to a seismic acceleration of 500cm/s�¡ are carried out. It is assumed that the bridge-pier, bridge-tower and main girder have the same member properties including skeleton-hysteresis. Damping coefficients of 0.05 and 0.02 were used in the elastic and elasto-plastic analyses, respectively. In the analysis, the effect of the following items on the stress, crack propagation and member yield are investigated.1)elastic versus elasto-plastic response,2)variation in the stiffness of the spring representing the soil surrounding the pier foundation,3)variation in the seismic wave. ƒL�[ƒ��[ƒh�i‰p�j�F - ‹LŽ–‹æ•ª�F - ‹æ•ª �@�@�@ˆÏˆõ‰ï˜_•¶�W