Beam-Column Timber Joint Connection Behavior Due to Nail and Modified-Washer Reinforcement Tests

Yosafat Aji Pranata, Anang Kristianto, Olga Pattipawaej


Timber connection capacity, in case of beam-column joint connection provides significant impact on the wooden building structures. Strength and stiffness of timber connections using reinforcement technique of wooden building structures have not been studied intensively. This paper studies the use of nails and modified-washer to improve wood connection’s performance. The experimental tests were conducted in the laboratory by comparing the partial connection between test specimen timber without reinforcement (standard type) and the reinforcement (PRP type). The testing was conducted based on partial connection beam-column joint test using Universal Testing Machine’s with a modified holder. Wood studied includes Meranti (Shorea spp.) and Mersawa (Anisoptera spp.). PRP type connection was using nails and modified-washer strengthening, and standard type connection was using a classic washer. Parameters studied were strength and stiffness of the connection, reviewed both: proportional limit load and ultimate limit load conditions. Result obtained from this research indicates that the use of nails and modified-washer make a positive contribution to improving the performance of the beam- column timber joint connections, in terms of strength capacity (both of proportional limit and ultimate limit loads) and stiffness capacity (displacement ductility ratio). Meranti beam-column timber joint is more brittle than Mersawa beam column timber joint, it has an impact on the results. PRP-type of Mersawa timber connection produces a higher ductility than the standard type, while the PRP-type of Meranti timber connection produces a similar ductility to the standard type.


Partial test; beam-column joint; timber; nail and modified-washer; behavior

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American Society for Testing and Materials. 2000. StandardTest Methods for Bolted Connections in Wood andWood Base Products, Designation D 5652-95(2000),ASTM, West Conshohocken, PA.

Awaludin, A.; T. Hirai; T. Hayashikawa; Y. Sasaki; A.Oikawa. 2008a. Effects of pretension in bolts on hysteretic responses of moment-carrying timber joints.Journal of Wood Science 54: 114-120. The Japan Wood Research Society.

Awaludin, A.; T. Hirai; T. Hayashikawa; Y. Sasaki. 2008b. Load-carrying capacity of steel-to-timber joints with a pretensioned bolt, Journal of Wood Science 54: 362368. The Japan Wood Research Society.

Badan Standardisasi Nasional. 2013. Spesifikasi Desain untuk Kontruksi Kayu SNI 7973:2013. Badan Standardisasi Nasional (in Indonesian).

Kobel, P. 2011. Modelling of Strenghthened Connections for Large Span Truss Structures. Department of Structural Engineering, Lund Institute of Technology, Box 118, S-221 00 LUND, Sweden.

Munoz, W.; M. Mohammad; A. Salenikovich; P. Quenneville. 2010. Determination of Yield Point and Ductility of Timber Assemblies: In Search for a Harmonized Approach. Engineered Wood Products Association.

Noguchi, M.; S. Takino. K. Komatsu. 2006. Development of wooden portal frame structures with improved columns. Journal of Wood Science 52: 51-57. The Japan Wood Research Society.

Pranata, Y.A.; A. Kristianto; O. Pattipawaej. 2014.Pengembangan Sambungan Kayu Batang Tarik dengan Ring-Modifikasi dan Perkuatan-Paku. SeminarRumah Tradisional 2014 – Transformasi Nilai- ilia Tradisional dalam Arsitektur Masa Kini, Puskim,Balitbang, Kementerian Pekerjaan Umum, Lombok,19-20 November 2014 (in Indonesian).

Pranata, Y.A.; A. Kristianto; O. Pattipawaej. 2015. Pengembangan Sambungan Hubungan Join Balok Kolom Kayu dengan Ring-Modifikasi dan Perkuatan Paku. Jurnal Teknik Sipil: 22, (1).



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