Mechanical characteristic of laminated beam of teak wood with sengonusing connector

Abstract

Wood as construction material which is provided by nature is decreasing if the usage is not controlled. Several kinds of wood which are often used for construction material are teak wood and sengon wood. One alternative combines wood with good quality and deficient quality, such as combination of teak wood and sengon wood as laminated beam. This research is to know flexural load of perpendicular layered connection of teak wood and sengon wood with bolt and nail connector. The teak wood was placed at the bottom and the sengon wood was at the top. Dimension of wood beam test specimen before laminated was 60 x 100 x 800 mm, after being laminated was 120 x 100 x 800 mm with 2 variations of connector of bolts and nails. Each connector was made in 3 test specimens. The bolt diameter size was 7 mm, the nail size was 5 mm, the length was 150 mm and the range of each connector was160 mm. Installation of connector was carried out parallel for each specimen test, so that there were 4 connectors in each laminated beam. The flexural load of laminated beam test specimen of teak wood with sengon wood using nail connector is bigger 19.2 % than laminated beam using bolt connector although the diameter is smaller. The use of laminated beam with nail connector becomes alternative substitute of whole beam.