Lateral Resisting Experiment of Prestressed-Tube Bolted Connection for Post-and-Beam Timber Construction

Abstract:

Connections are key elements and the weak points for timber structures. The most commonly used bolted timber connections with slotted in steel plate have low lateral stiffness and poor ductility in post-and-beam construction. This paper introduces the prestressed-tube bolted connection to alleviate this problem. To evaluate its lateral resisting performance, the failure mode, strength, lateral stiffness, ductility, hysteresis curve and equivalent viscous damping ratio of the ordinary and improved connections, as determined by the monotonic and reversed cyclic loading test, are compared. The results demonstrate that the lateral stiffness of the prestressed-tube bolted connection has been significantly improved, and its ductility is also better than the normal bolted connection with no decrease in the ultimate moment resisting capacity. It is believed that the semi-rigid prestressed-tube bolted connection, as an alternative to current bolted solutions, may provide reasonable lateral stiffness and has good potential for use in post-beam timber construction.

• Periodical: Advanced Materials Research (Volume 778)
• Pages: 631-638
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.778.631
• Online since: September 2013
• Authors: Min Juan He, Yi Zhao, Ren Le Ma
• Keywords: Lateral Resisting Performance, Monotonic Test, Post-Beam Timber Construction, Prestressed-Tube Bolted Connection, Reversed Cyclic Test, Stiffness

References

[1] Minjuan He, Frank Lam, Jun Yang, Shengdong Zhang, Design of Timber Engineering, China Architecture & Building Press, Beijing, (2008).

[2] Johansen K.W., Theory of timber connections, International Association of Bridge and Structural Engineering, 9, 249-262, Bern, Switzerland, (1949).

[3] Frank Lam, M. Gehloff, M. Closen, Moment-resisting bolted timber connections, Structures and Buildings, 163(2010), 267-274.

DOI: 10.1680/stbu.2010.163.4.267

[4] P.D. Rodd, A.J.M. Leijten, High-performance dowel-type joints for timber structures, Timber Construction , 5(2003), 77-89.

DOI: 10.1002/pse.144

[5] ASTM D1761-88, Standard Test Methods for Mechanical Fasteners in Wood, ASTM international, PA, USA, (2000).

[6] ASTM E2126-09, Standard Test Methods for Cyclic (Reversed) Load Test for Shear Resistance of Vertical Elements of the Lateral Force Resisting Systems for Buildings, ASTM international, PA, USA, (2009).

DOI: 10.1520/e2126-02

[7] Yasumura, M., Kawai N, Estimating seismic performance of wood-framed structures, Proceedings of 1998 I.W.E.C. Switzerland, (1998).

[8] Williams Muñoz, Mohammad Mohammad, Alexander Salenikovich, Pierre Quenneville, Determination of Yield Point and Ductility of Timber Assemblies: in Search for a Harmonised Approach, Proceedings of the 10th World Conference in Timber Engineering, Japan, (2008).

[9] BS-EN 12512, Timber Structures-Test Methods-Cyclic Testing of Joints Made with Mechanical Fasteners, British Standard, (2001).

DOI: 10.3403/02536208