| Titre : | Stability analysis of metal-plate-connected wood truss assemblies (2012) |
| Auteurs : | Xiaobin Song, Auteur ; Frank Lam, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Journal of structural engineering (Vol. 138 N° 9, Septembre 2012) |
| Article en page(s) : | pp.1110–1119. |
| Note générale : | Génie civil |
| Langues : | Anglais |
| Tags : | Wood structures Trusses Bracing Lateral stability Reliability |
| Résumé : | This paper presents a study on the critical buckling load and lateral bracing force of metal-plate-connected (MPC) wood truss assemblies. A three-dimensional finite-element method (FEM) based computer program was developed, calibrated, and verified with test results. A preliminary reliability analysis was conducted based on the verified FEM model, with consideration of the variation in material properties and the initial out-of-plane deflection of compression webs. The out-of-plane rotational stiffness of MPC connections has a significant effect on the critical buckling load and lateral bracing force ratio of MPC trusses. The critical buckling load could almost be doubled on the basis of an ideally pinned compression web, and the lateral bracing force ratio was found to be generally less than 1% from the test results and numerical analysis. Consequently, the currently used 2% rule of thumb for lateral bracing design may be conservative, by overestimating the lateral bracing force, and may lead to oversized bracing members. |
| ISSN : | 0733-9445 |
| En ligne : | http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29ST.1943-541X.0000502 |
