Studi Eksperimental Perilaku Baut Angkur pada Kolom Beton Akibat Geser Murni

Abstract

The change in allocation of a building needs the increase in structural strength on column and retro.fitting. Structural strength is done by adding structural element on the column by sticking connecting plate, using anchor as shear connector. The products of anchor are available in the construction world with stronger quality than common steel; they are produced by Hi/ti (German company), Ramset (Australia), DiaKress (England), and Sormat (Finland). The research was concerned with the use of several variations of the structural pattern of anchor bolts; the type of anchor used was bonded/adhesive anchor. Pushout- test was used to find out the behavior of anchor bolt shear in concrete column. The behavior of thebolts which had been deformed on several variations of the structural pattern of the bolts was observed in this research. The result of the research showed that the average shear strength of nominal anchor in the experiment was bigger than that of nominal anchor theoretically, the collapse of the tested device only occurred in anchor bolts and did not occur in concrete slab, the nominal shear strength of anchor in the tested device 1 of B U-1 was 45.37 kN (100%), the tested device 2 of BU-2 was 36. 78 kN (81.07%), and the tested device 3 of BU-3 was 33.11 kN (72.98%). In the load distribution of combined anchor structure 2 parallel 2, it was found that there was variance between anchor strength 1 and 2 and anchor strength 2 and 3 at 15.92%, and in the anchor structure 4 series, it was found that there was significant variance between anchor I and the lowest anchor (anchor 4) at 56.94% which indicated that the lowest bolt in the position of the smaller series could hold the existed shear load