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A finite segment model for shear lag analysis |
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| Authors: | Q. Z. Luo Y. M. Wu Q. S. Li J. Tang G. D. Liu |
| Affiliation: | a School of Civil Engineering, Hunan University, Changsha, Hunan 410082, PR China b Department of Civil Engineering and Architecture, University of Foshan, 18 Jiangwan Road, Foshan, Guangdong 528000, PR China c Department of Building and Construction, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong |
| Abstract: | A finite segment model is developed to calculate the shear lag effects for box girders with varying depth. Multiple longitudinal displacement functions are used to derive the stiffness matrix and the nodal force vector of the segment element. The shear deformation of the web is taken into consideration. A Perspex glass model of a three-span continuous box girder with varying depth is tested to provide experimental results for verifying the accuracy of the proposed method. The influences of the flange width to span ratio and girder–height ratio upon the shear lag are presented and discussed. |
| Keywords: | Box girder Bridge Energy method Finite segment Shear lag |
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