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Equivalent damping ratio model of flexure-shear critical RC columns
HighlightsHysteretic loop expression of flexural-shear critical RC columns under complete cyclic loading is developed.An equivalent damping ratio model suitable for flexural-shear critical RC columns is proposed.A design example of two-column pier supported bridge is provided to illustrate the application of the proposed model.
AbstractTo describe the hysteretic behavior of flexure-shear critical reinforced concrete (RC) columns realistically, a hysteretic loop expression of flexure-shear critical RC columns under complete cyclic loading is proposed by investigating the characteristics of column specimens in PEER - Column Database. For the proposed expression, important characteristics of flexure-shear critical RC columns under cyclic loading, including pinching and stiffness degradation, are covered. And then, an equivalent damping ratio model suitable for flexure-shear critical RC columns is proposed by using the proposed hysteretic loop expression based on the Jacobsen’s approach. The relationship between the equivalent damping ratio formula of two-column pier supported bridge and that of its columns is developed based on the energy dissipation capacity. A design example is provided to illustrate the application of the proposed model.
Equivalent damping ratio model of flexure-shear critical RC columns
HighlightsHysteretic loop expression of flexural-shear critical RC columns under complete cyclic loading is developed.An equivalent damping ratio model suitable for flexural-shear critical RC columns is proposed.A design example of two-column pier supported bridge is provided to illustrate the application of the proposed model.
AbstractTo describe the hysteretic behavior of flexure-shear critical reinforced concrete (RC) columns realistically, a hysteretic loop expression of flexure-shear critical RC columns under complete cyclic loading is proposed by investigating the characteristics of column specimens in PEER - Column Database. For the proposed expression, important characteristics of flexure-shear critical RC columns under cyclic loading, including pinching and stiffness degradation, are covered. And then, an equivalent damping ratio model suitable for flexure-shear critical RC columns is proposed by using the proposed hysteretic loop expression based on the Jacobsen’s approach. The relationship between the equivalent damping ratio formula of two-column pier supported bridge and that of its columns is developed based on the energy dissipation capacity. A design example is provided to illustrate the application of the proposed model.
Equivalent damping ratio model of flexure-shear critical RC columns
Zhang, Yan-qing (author) / Gong, Jin-xin (author) / Zhang, Qin (author) / Han, Shi (author)
Engineering Structures ; 130 ; 52-66
2016-10-04
15 pages
Article (Journal)
Electronic Resource
English
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