Karakteristik Kekuatan Leleh Lentur Baut Besi dengan Beberapa Variasi Diameter Baut

Evalina Herawati, Sucahyo Sadiyo, Naresworo Nugroho, Lina Karlinasari, Fengky Satria Yoresta

Abstract


Abstrak

Baut merupakan salah satu jenis alat sambung mekanis atau pengencang yang banyak digunakan dalam sambungan kayu. Penelitian ini bertujuan untuk menentukan kekuatan leleh lentur (Fyb) dari tiga ukuran diameter baut besi yang umum digunakan untuk sambungan kayu dan satu ukuran diameter baut baja sebagai pembanding. Spesifikasi baut yang digunakan dilihat dari dimensi dan komposisi penyusunnya. Nilai Fyb baut diperoleh dari pengujian momen leleh lentur dengan mengacu pada standar ASTM F1575. Hasil pengujian menunjukkan baut besi yang digunakan berasal dari bahan baja karbon rendah sedangkan baut baja berasal dari bahan baja karbon sedang. Nilai Fyb baut baja lebih tinggi dibandingkan baut besi. Nilai Fyb baut besi diameter 1/2 inci berbeda nyata dengan nilai baut diameter 5/8 dan 3/4 inci. Nilai Fyb ketiga diamater baut berada di atas nilai Fyb baut yang tercantum dalam SNI 7973:2013 tentang Spesifikasi desain untuk konstruksi kayu.

Abstract

Bolt is one of the mechanical fasteners that are widely used in wood connections. This study aims to determine the bending yield strength (Fyb) of three measures of bolt diameter made from iron which commonly used for the connection of wood and one measure of bolt diameter made from steel as a comparison. Specifications of bolts used can be seen from the dimensions and composition of the constituent. Testing of the bending yield strength was conducted according to ASTM F1575. The results showed that iron bolts used comes from low carbon steel, while steel bolts derived from medium carbon steel materials. Fyb value of steel bolts was higher than iron bolt. Fyb value of 1/2 inch diameter iron bolts was significantly different from the value of the bolts 5/8 and 3/4 inch in diameter. The Fyb value of three bolt diameter were above the Fyb value listed in SNI 7973:2013 concerning design specification for wood constructions.


Keywords


Baut, kekuatan leleh lentur, sambungan, kayu.

Full Text:

PDF

References


Agussalim, 2010, Desain kekuatan sambungan kayu geser ganda berpelat baja dengan baut pada lima jenis kayu Indonesia [tesis], Institut Pertanian Bogor, Bogor.

Albright, D.G., 2006, The Effects of bolt spacing on the performance of single-shear timber connections under reverse-cyclic loading [thesis], Virginia Polytechnic Institute and State University.

American Society for Metal [ASM], 2005, ASM Handbook, Volume 1, Properties and Selection: Irons, Steels, and High Performance Alloys, ASM International, USA.

American Wood Council [AWC], 2014, National Design Specification for Wood Construction 2015 Edition, Leesburg, VA, USA, www.awc.org.

ASTM F1575-03, 2013, Standard Test Method for Determining Bending Yield Moment of Nails, ASTM International, West Conshohocken, PA, 2013, www.astm.org

ASTM F606, 2016, Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets, ASTM International, West Conshohocken, PA, 2013, www.astm.org

ASTM A751-14a, 2014, Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products, ASTM International, West Conshohocken, PA, www.astm.org

ASTM E415-15, 2015, Standard Test Method for Analysis of Carbon and Low-Alloy Steel by Spark Atomic Emission Spectrometry, ASTM International, West Conshohocken, PA, www.astm.org

Badan Standarisasi Nasional [BSN], 2013, SNI 7973:2013 Spesifikasi desain untuk konstruksi kayu, Jakarta.

Breyer, D.E., Fridley, K.J., Cobeen, K.E., and Pollock, D.G., 2007, Design of Wood Structures ASD/LRFD Sixth Edition, McGraw-Hill, New York.

Kulak, G.L., Fisher J.W., and Struik, J.H.A., 2001, Published Guide to Design Criteria for Bolted and Riveted Joints Second Edition. American Institute of Steel Construction, Inc., Chicago, IL, USA.

Ozelton, E.C., 2006, Timber Designer’s Manual Third Edition, Blackwell Publishing, Oxford.

Pranata, Y.A., Suryoatmojo, B., dan Tjondro, J.A., 2013, Penelitian eksperimental kuat leleh lentur (Fyb) baut, Jurnal Teknik Sipil, 12(2):98-103.

Rammer, D.R., and Zelinka, S.L., 2014, Withdrawal Strength and Bending Yield Strength of Stainless Steel Nails, Journal of Structural Engineering, 141(5), 04014134.

Sawata, K., and Yasumura, M., 2000, Evaluation of yield strength of bolted timber joints by Monte-Carlo simulation, Proceedings of 6th World Conference on Timber Engineering, Canada.

Tjondro, J.A., 2007, Perilaku sambungan kayu dengan baut tunggal berpelat sisi baja akibat beban uni-aksial tarik [disertasi], Bandung, Universitas Katolik Parahyangan.

Vable, M., 2014, Mechanics of Materials Second Edition, Michigan Technological University.




DOI: http://dx.doi.org/10.5614%2Fjts.2017.24.3.4

Refbacks

  • There are currently no refbacks.


web
analytics

Lisensi Creative Commons

This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License