Effects Of WEB Openings on The Analysis of Cellular Plate Structures of Varying Depth by Grillage Method | ||
| Engineering and Technology Journal | ||
| Article 6, Volume 24, Issue 5, May 2005, Pages 507-523 PDF (2.37 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.30684/etj.24.5.4 | ||
| Author | ||
| Meethaq Sh . Al - Fatlawi | ||
| Dep., of Civil Eng., University of Baghdad, Baghdad-IRAQ. | ||
| Abstract | ||
| Abstract Effect of web openings on the elastic behavior of a tapered box girder is studied . The structures are analyzed by a grillage method including the effect of warping restraint implicitly through the torsional constant . The introduction of web openings results in a significant reduction in the transverse shear and torsional stiffness of the structure . An appropriate reduction coefficient can be taken from empirical curves derived from a parametric finite element study ; these coefficients are used in the grillage analysis . Results obtained from the grillage method are compared with those gained from finite element solutions ( plate / shell ) elements by using the software program ( MSC / NASTRAN package ) , for different proportions of the structure and with different size of opening ( 12.9 % , 25.5 % , 36.3 % ) . | ||
| Keywords | ||
| Key Words: Cellular structure; Grillage method; plate / shell elements; tapered box beam; Torsion; Warping restraint; Web opening | ||
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