By Ida Näslund, Helena Johnsson (auth.), Simon Aicher, H.-W. Reinhardt, Harald Garrecht (eds.)
This publication comprises the contributions from the RILEM foreign Symposium on fabrics and Joints in bushes buildings that was once held in Stuttgart, Germany from October eight to ten, 2013. It covers contemporary advancements within the fabrics and the joints utilized in glossy bushes buildings. relating to easy wood fabrics, the contributions spotlight the widened spectrum of goods comprising cross-laminated bushes, glulam and LVL from hardwoods and block glued parts. trees concrete compounds, cement bonded wooden composites and cutting edge lightweight buildings characterize more and more hired choices for flooring, bridges and facades. in regards to jointing applied sciences, substantial advances in either mechanical connections and fixed joints are offered. Self-tapping screws have created unheard of ideas for trustworthy, powerful in addition to ductile joints and reinforcement applied sciences. relating to adhesives, which represent the foundation of the jointing/laminating know-how of recent bushes items, prolonged concepts for tailored bonding recommendations need to be acknowledged. except melamine-urea and phenolic-resorcinol adhesives, one-component-polyurethanes, emulsion isocyanate polymers and epoxies supply quite a lot of chances. The contributions facing experimental and numerical investigations on static, cyclic and seismic habit of constructions basically exhibit the improved capability of contemporary trees building for trustworthy and sustainable constructions and bridges of the hot millennium.
The publication is based in 9 thematic components, being
I) Structures
II) Mechanical Connections
III) Glued Joints and Adhesives
IV) trees and Concrete/Cement/Polymer Composites
V) Cyclic, Seismic Behavior
VI) Hardwood, changed wooden and Bamboo
VII) Cross-Laminated Timber
VIII) houses and checking out of Wood
IX) Glulam
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Additional info for Materials and Joints in Timber Structures: Recent Developments of Technology
Example text
Yet, in a second step after the tearring of the welds the rotational stiffness is much loweer, and so is the resistance. Despite D preventing the brittle fracture of wood in favor oof the plasticizing of the metallic m connector, this behavior limits the ductility annd energy dissipation of the joint. j Fig. 6 Evolution of the mom ment M in the joint function of the rotation angle α Fig. 7 Bilinear model (EEEP curve) for the original configuration, displaying a low ductility 20 J. Humbert et aal.
First, for the sake of simplicity, we simply bolt the connector directly from the upper plate, allowing the metallic wings to be more directly connected to the ground (Fig. 10). With this setup, we need to cut the end of the timber member for practical reasons. Alternatively, a second possibility is to reinforce the welds by extending them to cover the full length of the wings (see Fig. 5). Finally, a mixed setup is also considered using both modifications. In the following, we present the experimental results of tests conducted using those alternative connector configuration, all test parameters being otherwise equal to those presented earlier for the original joint configuration.
Cyclic Behavior of Timber Column Concealed Base Joint. : Resistance performance of cross-shaped metallic joint for use in multi-story timber structures. In: Proceedings of the Korean Society of Wood Science and Technology (KSWST) Annual Meeting, paper D-12, Gwangju, Korea, April 4, pp. 64–65 (2011) (in Korean) [5] International Organization for Standardization, ISO 16670: Timber Structures — Joints made with mechanical fasteners — Quasi-static reversed-cyclic test method, Geneva, Switzerland (2003) [6] European Committe for Standardization (CEN), Eurocode 5: Design of timber structures — Part 1-1: General – Common rules and rules for buildings, EN 1995-11:2004, Brussels, Belgium (2004) [7] Architectural Institute of Japan, New estimation method for shear wall performance.