Ultimate Shear Strength of Welded Stainless and Carbon Steel Girders

Author:

Kato Kentaro1,Ishii Hironori1,Yuki Yoichi1,Miyashita Takeshi2,Nishimura Kimitoshi3

Affiliation:

1. Yokogawa bridge Holdings Corp., Chiba, Japan

2. Nagaoka University of Technology, Nagaoka, Japan

3. Narasaki Seisakusyo Co., Ltd., Muroran, Japan

Abstract

<p>Stainless steel is a high-performance alloy with superior corrosion resistance compared to carbon steel. By applying stainless steel to corroded areas of a steel bridge, durability can be substantially improved. Our objective is to create a steel bridge that integrates hybrid structural components, which are composed of a combination of welded stainless steel and carbon steel, used to reinforce steel girder ends or their lower sections. Specifically, I-girder ends mainly subject to shear loads are our primary focus for corroded sections. This study examines the ultimate shear strength of welded steel girders comprised of stainless and carbon steel through load tests and numerical analysis. As a result, the ultimate strength of a hybrid girder can be assessed using a design equation for a homogeneous girder made of carbon steel by the Basler equation or an ultimate shear strength curve for stainless steel plates proposed in previous research in Japan.</p>

Publisher

International Association for Bridge and Structural Engineering (IABSE)

Reference7 articles.

1. Kato K., Kiyokawa S., Nishimura K. Loading Test of I-girder and Accelerated Corrosion Test of Welding Member made of Stainless Steel and Carbon Steel. YOKOGAWA BRIDGE HOLDINGS GROUP TECHNICAL REPORT.2023; 52: 44-55. (in Japanese)

2. Miyazaki Y., Nara S. The Strength Estimation Method and Behavior of Simply Supported Stainless Steel Plates under In-plane Shearing. JSSC Proceedings of Constructional Steel. 2014; 22(11): 72-78. (in Japanese)

3. Nara S., Deguchi Y., Fukumoto Y. ULTIMATE STRENGTH OF STEEL PLATE PANELS WITH INITIAL IMPERFECTIONS UNDER UNIFORM SHEARING STRESS. Journal of JSCE. 1988;392(I-9): 265-271. (in Japanese)

4. Subcommittee on Stability Design Committee on Steel Structures JSCE. Guidelines for Stability Design of Steel Structures. 1987; Steel Structures Series 2. (in Japanese)

5. Ibi T., Miyazaki Y., Nara S. An evaluation method for strength of compressive stiffened plates with stainless steels and carbon mild steels between longitudinal stiffeners and plate panels. JSCE Journal of Structural Engineering. 2017; 63A: 78-91. (in Japanese)

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