一、前言根据日本高速公路调查会“关于PC桥一些问题的研究报告”的报导,自1965～1980年的15年期间,PC T形简支梁桥的横向连结工程费用占全桥工程总造价的比例以及横向连接施工人工费用占横向连结工程费用的比例如表1所示。表中括号内数字表示以1965年的工程费用为100时1980年的上升 I. Preface According to a report of the Japan Expressway Survey on the Research on Some Problems with PC Bridge, the cost of cross-linking the PC-T-shaped simple-supported bridge over the 15-year period from 1965 to 1980 accounted for the total cost of the full-bridge project As well as the proportion of the construction cost of cross-linking construction in the horizontal link project are shown in Table 1. The numbers in parentheses in the table indicate the 1980 rise in the case of the 1965 engineering cost of 100