Journal
APPLIED OCEAN RESEARCH
Volume 115, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apor.2021.102851
Keywords
Shear capacity; Corroded steel beam; Pitting corrosion; Stochastic numerical analysis; Mass loss ratio
Categories
Funding
- China Postdoctoral Science Foundation [2017M621156]
- State Key Research Development Program of China [2016YFC0801404, 2016YFC0600704]
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This study focuses on the influence of corrosion on the shear capacity of H-shaped steel beams, proposing a relationship between shear capacity and mass loss ratio, and presenting an analytical method for predicting the residual shear capacity of corroded steel beams. The results show high accuracy in predicting the shear capacity of H-shaped steel beams with corroded web, making the proposed method applicable for different material strengths.
The H-shaped steel beam is one of the most commonly adopted steel members in building structures and industrial structures, including, bridges, ocean platforms, and industrial equipment. For the steel beams adopted in such structures, corrosion is inevitable, of which pitting corrosion is one of the most common types. The shear capacity of the webs of steel beam is an important performance factor utilized by steel structures. This study aims to reveal the influence of pitting corrosion on the shear capacity of corroded H-shaped steel beams. The relationship between shear capacity and mass loss ratio is the key research content. This study investigates the constant and randomly corroded depths. An analytical method for predicting the residual shear capacity of corroded steel beam is proposed. Results indicate that the proposed method has high accuracy in predicting the shear capacity of H-shaped steel beam with corroded web. The proposed analytical method is applicable for constant and random tw,c/ tw. The conclusions derived in this work are suitable for steel webs with normalized slenderness As of less than 1 and can be applied to steel beams with different material strengths.
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