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A Comparative Study of U.S.-Japan Seismic Design of Highway Bridges: I. Design Methods

机译：美日公路桥梁抗震设计比较研究：I。设计方法

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摘要

This paper summarizes the results of a comparative study on seismic design of highway bridges jointly undertaken by the U.S. Federal Highway Administration and Japan's Public Works Research Institute. The seismic design specifications for highway bridges of the two countries are reviewed and compared with respect to their design philosophies and procedures. Some major design parameters including design seismic forces, response modification factors and minimum support lengths are addressed in detail. The differences between the two specifications are illustrated via a design example of a reinforced concrete column for simple, two-span bridges common in both countries. Three different scale models of the column are designed in accordance with the seismic design specifications of the United States and Japan, and tested on a shake table for their comparative seismic performance. The results of the shake table tests are discussed separately in a companion paper.
机译：本文总结了由美国联邦公路管理局和日本公共工程研究所共同进行的公路桥梁抗震设计比较研究的结果。审查并比较了两国公路桥梁的抗震设计规范，并就其设计理念和程序进行了比较。详细介绍了一些主要设计参数，包括设计地震力，响应修正系数和最小支撑长度。两种规格之间的差异通过一个钢筋混凝土柱的设计示例进行了说明，该设计用于两国常见的简单的两跨桥梁。根据美国和日本的抗震设计规范设计了三种不同比例的柱模型，并在振动台上对其抗震性能进行了测试。振动台测试的结果将在随附的论文中单独讨论。

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