ANALISIS KEKUATAN SAMBUNGAN GESER GANDA ENAM JENIS KAYU PADA BERBAGAI SESARAN MENURUT DIAMETER DAN JUMLAH BAUT
Abstract: This research aims
to determine the effect of double shear connection strength of six types of
timber in various displacement based on diameter and the number of bolts. Six
types of wood used are bangkirai, punak, meranti, sengon, bintangur and kapur.
Double shear connection consists of the main member (wood) and side member
(steel plate) with bolts connected. The average moisture content of sengon,
meranti, bintangur and bangkirai are relatively similar (about 12 %), while
kapur and punak are slightly higher at around 14 %. In contrast, the average
density of six wood species are greatly vary ranging from the lowest sengon
0.26 g cm-3, to the highest 0.82 g cm-3 of bangkirai wood. The total load and
load per bolt on double shear connection using bolts connector are influenced
by the type of wood, diameter and number of bolts. There is a strong tendency
that the higher specific gravity or density of the wood makes higher total load
and load per bolt on double shear connection for each displacement. In
addition, an increasing number of bolts makes the total load increased. On the
other hand, it decreases load per bolts for each of bolts diameter. The use of
10 pieces of 7.9 mm diameter bolts on double shear connection for almost all
type of wood produces the highest average total load compared to the other bolt
diameter for both displacement 1.5 mm and 5 mm. In the same connection
displacement the highest load per bolt is still obtained from using 7.9 mm bolt
diameter but with the use of 4 pieces of bolts for almost all types of wood
with the exception for punak and bitangur showing the highest values are
obtained from 6 pieces of bolts. Bangkirai wood, kapur, punak, bintangur and
meranti can be used as the main member in double shear connection by using bolt
with diameter 6.4 mm, 7.9 mm and 9.5 mm because of fulfilling the requirements
of PKKI (1961).
Penulis: Sucahyo Sadiyo, Imam
Wahyudi, Fengky Satria Yoresta, Nurhasanah, Muhammad Sholihin
Kode Jurnal: jpkehutanandd120071