Browse > Article
http://dx.doi.org/10.7744/cnujas.2011.38.3.533

Compression strength performance of multi-layer glued columns by using square lumbers produced from domestic small diameter logs  

Shin, Il-Joong (Dept. of Bio-based Materials engineering, Chungnam National University)
Kim, Yun-Hui (Dept. of Bio-based Materials engineering, Chungnam National University)
Jang, Sang-Sik (Dept. of Bio-based Materials engineering, Chungnam National University)
Publication Information
Korean Journal of Agricultural Science / v.38, no.3, 2011 , pp. 533-540 More about this Journal
Abstract
This study is to develop a mulit-layer glued columns for construction of Korean-style houses by using domestic small diameter logs. Dried small square lumber glued each other to develop a multi-layer glued columns and evaluated its performance of strength. Then, predicted the design load of multi-layer glued columns and make a comparison between actual load and design load of multi-layer glued columns. In the results, allowable load by allowable stress of multi-layer glued columns was measured one-third of actual columns load and prediction load was measured less than 10~30% of the actual load. Therefore, muilt-layer glued member has a standard allowable stress of compressive of 13 MPa (Larix leptolepis) and 19 MPa (Chamaecyparis obtusa) when used as columns. Also, using compression strength of small diameter square logs could calculate maximum loads of multi-layer glued member as column.
Keywords
Domestic small diameter logs; Mulit-layer glued columns; Compression strength; Allowable stress; Prediction load;
Citations & Related Records
연도 인용수 순위
  • Reference
1 KS. 2007. Softwood structural lumber. In KS F 3020. (in Korean).
2 KS. 2005. Structural glued-Laminated timber. In KS F 3021. (in Korean).
3 KS. 2004. Method of compression test for wood. In KS F 2206. (in Korean).
4 ASTM. 2009. Test methods of static tests of timber in structural sizes. In ASTM D 198-09.
5 ASTM. 2003. Standard practise for evaluating allowable properties for grades of structural lumber. In ASTM D 2915-03.
6 Kim KM, Shim SR, Shim KB, Park JS, Kim WS, Kim BN, Yeo HM. 2008. Development of structural glued laminated timber with domestic cedar. Mokchae Konghak 37(3): 184-191.