ENGINEERING JOURNAL : PERILAKU STRUKTUR KOMPOSIT BETON-BAMBU AKIBAT PEMBEBANAN DINAMIS

Jurnal Rekayasa Vol 5 No 1 Artikel 05

Mokh. Hidayat
(Staf Pengajar Jurusan Teknik Sipil, Politeknik Negeri Samarinda)
Sri Murni Dewi
(Staf Pengajar Jurusan Teknik Sipil, Fakultas Teknik, Universitas Brawijaya)
Edhi Wahyuni Setyowati
(Staf Pengajar Jurusan Teknik Sipil, Fakultas Teknik, Universitas Brawijaya)

ABSTRACT: The research is aimed to evaluate a composite structure of concrete-bamboo which influenced by earthquake loads. The evaluation of concrete-bamboo composite structure conducted through static and dynamic examination. This research is conducted by making simple structure model. This structure made from wall of panil concrete endue gedek 30 cm x 110 cm thickly 5 cm, composite column concrete-bamboo 16 cm x 16 cm size, and ringbalk of Sloof composite concrete - bamboo 14 cm x 20 cm size.
The result of dynamic observation, it has shown that natural frequency mean instruct holey structure wall 37,3312 HZ and structure wall direction which is not holey (full of wall ) 38,568 HZ. Difference of natural frequency between holey wall and full of wall, every reduction one wall element of panil concrete - bamboo (gedek ) 30 cm x110 cm, thick 5 cm is 1,605%. Horizontal stiffness (K) for the direction of holey wall 174036,80 singk of HZ2 and wall direction is not holey 185766,0228 singk of HZ2. Difference of Stiffness of holey wall direction and direction is not holey, every reduction one wall element of panil concrete – bamboo ( gedek ) 30 cm x 110 cm size, thick 5 cm is 3,157. From result of static examination shuffle through with loads variation of 500 N, 1000 N, 1500 N, barst early structure happened tired loads ± 1000 N. Structure collapse at loads ± 1500 N. Degradation of stiffness cyclic (Kc) of loads 500 N to 1000 N equal to 7,371% and from 1000 N to 1500 N equal to 97,6348%. Composite structure of natural concrete-bamboo is avalanche loads ± 1500 N. factor of Ductility composite structure of concrete-bamboo 1,7907

Keywords: composite earthquake, Structure of Concrete- bamboo, Dynamic Loads

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