Abstract
This paper focuses on development of the high energy saving timber building and ecological technology protecting environment in civil engineering. Wood framed with sheathing, large panel structures became more popular building constructions in Poland last decade. Experimental tests and numerical analysis of panels and complete wood framed building have been taken into account. Typical two-story residential building was selected for test. Test of three dimensional (3D) whole building was conducted on the base of experimental investigations results of large panel similar to those used in building structure. Also adequate tests of materials and connections were accompanying of the whole structure investigations. Obtained results were adopted in numerical models elaborated for wall and floor panels and in 3D model of whole building. Load -displacements characteristics were acquired from tests and numerical models. The displacements computed from 3D numerical model were 10–20% higher than from experiment. Experimentally ob-tained lower displacements than those from analytical analysis are resulted from higher stiffness of wall system due to diaphragms interconnections, their common interaction and three-dimensional character of building structure. Presented research analyzed method of computation of internal forces in building as well in the range of engineering methods in the form of rigid beam scheme up to the advanced methods using 3D spatial model adopting FEM.
Highlights
In the world literature there are minor number of experimental tests on full-scale the wood-framed buildings (Van de Lindt et al 2012) because the cost associated with tests and required for this kind of investigations large facilities
Displacements of the first floor diaphragm in marked points J1 to J6 in Figure 5a under lateral load of 12.0 kN and 24.0 kN are underlined in Table 1 and compared with results obtained from numerical analysis
Analytical model representing behavior of the whole building structure has been built on the base of tests of wood used in the structure of tested building
Summary
In the world literature there are minor number of experimental tests on full-scale the wood-framed buildings (Van de Lindt et al 2012) because the cost associated with tests and required for this kind of investigations large facilities. The light wood-framed garage wall was tested under dynamic load to the failure stage and results of numeric model simulated behavior of structure along the all path of loading. Results obtained from finite-element model compared to the tests results indicate influence of wall height, sheathing placements and nailing pattern on lateral load capacity and stiffness. Papers (Pang et al 2010; Pang, Shirazi 2013) present a simplified direct displacement design procedure which was used to design the shear walls for mid-rise wood-frame buildings. Fasteners linking sheathing to the wooden frame and diaphragms interconnecting links redistribute loading in the structural elements, and they are affecting the lateral strength and displacements of buildings (Hite, Shenton 2002; Robertson, Griffiths 1981). That model allows for analysis of particular structure assemblies including connections and fasteners as well as it leads to assign the mostly stressed structural elements in the post elastic range
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