Closure to 'Analysis of Shear Lag Anomaly in Box Girders' by S.C. Lee, C.H. Yoo., and D.Y. Yoon
| Autor: | Sung C. Lee, Dong Y. Yoon, Chai H. Yoo |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Engineering
business.industry Mechanical Engineering Building and Construction Structural engineering Shear rate Shear modulus Simple shear Shear (geology) Mechanics of Materials Critical resolved shear stress Girder Shear stress General Materials Science Shear flow business Civil and Structural Engineering |
| Zdroj: | Journal of Structural Engineering. 130:1861-1862 |
| ISSN: | 1943-541X 0733-9445 |
| DOI: | 10.1061/(asce)0733-9445(2004)130:11(1861) |
| Popis: | In this article, the original researchers (Lee et al) reply to a commentary on their study of shear lag anomaly in box girders. These authors originally reported that the source of the shear lag-aftereffect is positive shear lag, positive shear lag creates negative shear lag through the shear lag-aftereffect or the compatibility requirement, and the origin or negative shear lag is positive shear lag. The commentary authors demonstrate why these conclusions are wrong. The commentary contends that positive shear lag and negative shear lag are caused by the secondary stresses, when the shear warping of the flange is partially or fully restrained; the secondary stresses result from the continuity requirement of the longitudinal displacements (therefore the term "shear lag-aftereffect" is needless); and both the positive shear lag and the negative shear lag are independent phenomena. In this reply, the original authors (Lee at al) defend their finite-element models, their analysis results, and the methodology used in their study. The researchers restate that their paper dealt with the wide flanges of practical cantilever box girders subjected to various types of lateral loading, and assumed that the mechanical properties are constant in the flanges. The researchers stand by their method and the tracing of the source of negative shear lag found in practical box flanges made of homogeneous material like structural steel. |
| Databáze: | OpenAIRE |
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