Behavior of Hollow Laminated Concrete-filled Tubes under Cyclic Loading

• Main Authors: Lin, Jiang-Lin, 林江麟
• Other Authors: Hsu,Hsie-Lung
• Format: Others
• Language: zh-TW
• Published: 1997
• Online Access: http://ndltd.ncl.edu.tw/handle/32021205507961812322

碩士 === 國立中央大學 === 土木工程學系 === 85 === Concrete-filled tube has been widely used in bridge construction due to its significant capability in resisting bending moment induced by earthquake load. However, the thin- wall tube of the section is susceptible to local buckling failure if the wall element is not adequately detailed. Furthermore, for member designed in high bridge or in bridge with long spans and heavy loads, the significant member weight may prevent its application in engineering practice. Therefore, the need to study a modified structural form to improve the behavior of the section is essential. This study is focused on the behavior of sandwiched hollow box sections. The sandwiched sections are composed of double thin-walled tubes with concrete filled in between to achieve composite forms. It was confirmed in the experimental investigation that the modified structural member possessed higher strength to mass ratio and higher energy dissipating capability than the corresponding concrete-filled tube. Ductility of the modified members was also maintained at the same level as that of a solid concrete-filled tube.