STUDY ON ULTIMATE BEARING CAPACITY OF PRESTRESSED CABLE ANCHORAGE ZONE

摘要

Since the cable anchorage zone in a prestressed concrete cable-stayed bridge is subjected to a large amount of concentrated tendon force, it shows very complicated stress distributions which can cause serious local cracks. In this paper, basing on the full-scale model test results of cable anchorage zone, continuum damage theory is used to analysis the damage of cable anchorage zone. And its results are proved by finite element analysis, which provide elementary data for the stress state in the anchorage zones and have encouraged more efficient designs.