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The present paper is based on well-known theoretical and experimental results which have established and verified the interaction of the two basic components of light steel buildings subject to static load, namely portal frames and panels of sheeting. The favourable effect of the above interaction is particularly evident in the case of horizontal load which in this type of building is represented by wind. Wind, however, may exert dynamic effects as well, and therefore full-scale tests were performed with the following aims:
1. to determine whether it is necessary to take the dynamic effect of the wind load into consideration,
2. to determine whether sheet panels and especially their fasteners are able to transfer possible dynamic load.
Ing. M. Strnad and Doc. ing. M. Pirner
Details are given of a numerical study of the elastic longitudinal bending behaviour of composite box girder bridges in which the use of flexible shear connectors results in incomplete interaction between the slab and girder components. The results of the study provided background for the formulation of design rules included in the draft Unified Bridge Code, and the rules are discussed in the light of these results.
K.R. Moffatt and P.J. Dowling