连接板在连续跨度中的试验评估压力制动成型槽梁的应用

Pub Date : 2023-01-06 DOI:10.3233/brs-220201

K. Barth, G. Michaelson, Robert M. Tennant, Brook Woldegabriel

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引用次数: 1

摘要

这项工作的范围是评估连接板横向连接压力制动成型槽梁（PBFTG）的性能。模块化PBFTG是由钢铁市场发展研究所（美国钢铁协会的一个业务部门）短跨度钢桥联盟内的一个技术工作组开发的，由现任作者领导。该工作组由钢桥行业的利益相关者组成，包括工厂、制造商、服务中心、行业贸易组织、大学和桥梁所有者。对横向连接两个PBFTG的全尺寸连接板进行疲劳加载，模拟农村环境中75年的疲劳寿命。在整个疲劳寿命期间记录并比较应变和挠度数据，以确定连接板的有效性。这项工作的结果表明，连接板细节在其整个疲劳寿命内表现良好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Experimental assessment of link slabs in continuous span applications of press-brake-formed tub girders

The scope of this effort is to evaluate the performance of a link slab transversely connecting press-brake-formed tub girders (PBFTG). Modular PBFTGs were developed by a technical working group within the Steel Market Development Institute’s (a business unit of the American Iron and Steel Institute) Short Span Steel Bridge Alliance, led by the current authors. This working group consists of stakeholders in the steel bridge industry, including mills, fabricators, service centers, industry trade organizations, universities, and bridge owners. A full-scale link slab transversely joining two PBFTGs was fatigue loaded simulating a 75-year fatigue life in a rural environment. Strain and deflection data was recorded and compared throughout the fatigue life to determine the link slab’s effectiveness. Results of this effort show the link slab detail performs adequately throughout its fatigue life.

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