斜拉桥锚头下渗水病害检测及成因分析

汪 浩    徐 俊  

(同济大学桥梁工程系   上海   200092)

摘要：斜拉桥经过多年运营后锚固系统出现各种缺陷，使得雨水渗入其下锚头加剧了缆索及锚头的锈蚀，造成拉索系统受力状态的严重退化，影响斜拉桥正常使用。为明确渗水产生的原因，将2002年和2004年该斜拉桥病害检测进行比较，并根据相关试验结果，对渗水成因进行分析。

关键词：斜拉桥；下锚头；渗水；病害检测；试验

Inspection and analysis for defects caused by seepage of deck-level anchorage of cable-stayed bridge

                               WANG Hao     XU Jun

Abstract：Defects appear in anchorages of a cable-stayed bridge after running for many years, so water seeps into the deck-level anchorage which promotes corrosion of strands and anchorages. The corrosion has caused the degeneration of its cable system and made the bridge dangerous to run. In order to know the reason of seepage, a compare of defects inspection is made between the year 2002 and 2004, and with relative experiments the analysis is made of the seepage.

Key words：cable-stayed bridge; deck-level anchorage; seepage; defects inspection; experiment