Deskripsi Lengkap
Bahasa : | ind |
Sumber Pengatalogan : | LibUI ind rda |
Tipe Konten : | text (rdacontent) |
Tipe Media : | unmediated (rdamedia); computer (rdamedia) |
Tipe Carrier : | volume (rdacarrier); online resource (rdacarrier) |
Deskripsi Fisik : | xix, 109 pages : illustration ; 28 cm. + appendix |
Naskah Ringkas : | |
Lembaga Pemilik : | Universitas Indonesia |
Lokasi : | Perpustakaan UI, Lantai 3 |
- Ketersediaan
- File Digital: 1
- Ulasan
- Sampul
- Abstrak
No. Panggil | No. Barkod | Ketersediaan |
---|---|---|
T5279 | 15-19-509865179 | TERSEDIA |
Tidak ada ulasan pada koleksi ini: 95605 |
Abstrak
Penelitian lni berupa peroobaan di Iaboratorium dengan skala penuh
untuk mengetahui perilaku sambungan pracetak dengan aistem takik.
Sambungan diletakkan di sendi plastis balok yang diharapkan mengalami
kenancuran teriebih dahulu seteiah mencapai kekuatan yang diinginkan.
Sambungan ini dibuat dengan bentuk pracetak tertakik dan tulangan Ientur
dimasukkan pada kedua bagiannya di Iubang yang disiapkan. Lubang
kemudian diinjeksi. Bagian sambungan ditutup dengan bahan pengisi dari
Janis iidak menyusut dan mempunyai kekuatan minimal sama dengan mutu
baton pracetaknya.
Terdapat tiga elemen dalam penelitian ini yaitu satu buah baiok
sederhana untuk pengujian lantur dengan beban berulang, satu buah balok
sederhana untuk pengujian geser dengan beban monotonik dan satu
elemen koiom - balok untuk pengujian beban horizontal secara siklik dan
beban vertikal konstan.
Pengujian Ientur menuniukkan beban maximum 23.9 ton, beban retak
pertama 6.64 ton. Hasil perhitungan beban monotonik maximum adalah
38.67 ton dengan demikian beban yang dicapai pada pengujian beban
berulang 61.8 % nya. Lendutan maximum benda uji 61.09 mm dengan
beban 51 % beban maximum. Beban Ieieh tidak berbeda pada bagian
batas sambungan dan di tengah sambungan. Tulangan yang masuk ke
Iubang dan yang tidak mempunyai perilaku disipasi energi sama baik. Letak
lapis tulangan Ientur tidak mempengaruhi disipasi energi. Retak
terkonsentrasi pada daerah dengan tulangan Iantur yang tidak rapat dan
pada batas sambungan.
Pengujian beban geser mempefiihatkan beban maximum 38.2 ton,
beban retak 17.85 ton dan hasil perhitungan menunjukkan beban maximum
28.132 lon di luar sambungan dan 41.12 di sambungan. Beban ratak
pertama 10.94 ton. Beban 80 % beban maximum yaitu 30.56 ton
mempunyai lendutan 1.072 mm. Pengujian kolom-balok menunjukkan Iup histerisis cukup baik sampai
Siklus 28. Kehandalan ditinjau dari penurunan beban kurang dari 20 %
beban maximum, jumlah daktilitas kumulatif, penurunan kekakuan dan
disipasi energi pada dua siklus berurutan, rasio disipasi energi relatif dan
kekakuan sekan pada batas drifi -0.0035 dan +0.DO35. Berdasarkan hal
tersebut maka dktilitas yang mampu dicapai adalah 6573. Kehancuran
benda uji ini terletak di sendi plastis dan elemen ini mampu
mengembangkan kekuatan dan kemampuan deformasi untuk zone 6
dengan jenis tanah Iembek. Pada percobaan dipakai untuk gedung
berlantai 6. Tulangan silang di sendi plastis berperan mendisipasi energi
secara bergantian.
Tipe retak adalah retak lentur dilanjutkan retak geser pada siklus
akhir. Tidak ditemukan keretakan di titik kumpul dan kolom. Perbandingan
dengan hubungan monolit maka tipe ini Iebih aman.
Sambungan ini menambah kasanah jenis sambungan praoetak yang
telah ada dan memberlkan masukan bagi tersusunnya peraturan tentng
beton pracetak untuk menahan gaya gempa.
Abstract
This detail examination is laboratory expenrnent with full scale to nnd out behavior precastconcrete connection with notch system. The dimention of beam and column based on building of six stories high. The location of this connection is at beam plactic hinge and this concept design is at this location the failure will be occur after the element .got the ideal force. This connection have a notch at two part of precast and the bending bar go into the hole that prepare at precast notch. Alter that the hole get an tiller liquid injection. This connection is pour unshrinkage cement that has same quality with precast concrete. There are three element in this experiment. One is simple beam to repeatly bending test, one is simple beam to monotonic shear test and the else is a beam ~ column element to horizontal cyclic test with constant vertical force. ~ The bending test shown the maximum force is 23.9 ton and first cracking force is 6.64 ton. The computation result with monotonic loading is 38.67 ton as maximum force this test only has 61.8 % monotonic maximum force. Maximum displacement of this test is 61.09 mm at 51 % maximum force. Yielding force at the border and the middle of the connection has same value. Behavior of bar that go into the hole as good as the regular bar. Bending bar layer has not energy dissipation etfect. Crack concentration is at area that has smaller bending bar and at connection border The result of shear test are maximum force is 38.2 ton, the first cracking force is 17.85 ton. The result of it's computation are the maximum force is 28.132 at out of connection and in connection is 41.12 ton ton and the first cracking force is 8.926 ton. The 80 % maximum force that is 30.56 ton has 1.072 mm deflection. _ The failure mode is bending at the beam and than shear failure at last cycle without craking at joint and column. Comparative with monolit the failure mode is more safe. Beam - column test produce good histerisis loop until 28th cycle. The performance trade on force degradation not more than 20 % maximum force, cumulative ductility, degradation of stilfness and energy dissipation from two cycle in a series/elative energy dissipation ratio,secant stiffness between drift limits of -0.0035 and +0.0035. Based of that the element ductility is 6. 673. The location of failure at the connection or at the beam plastic hinge and the element is capable to develop it's strength and deformation after yielding. The system can applied at 6th seismic zone with soft soil. The connection crossing bar is capable to dissipate the energy by tum. This system enrich the kind of precast connection and give any input for concrete structure seismic regulation for precast.
Abstract
This detail examination is laboratory expenrnent with full scale to nnd out behavior precastconcrete connection with notch system. The dimention of beam and column based on building of six stories high. The location of this connection is at beam plactic hinge and this concept design is at this location the failure will be occur after the element .got the ideal force. This connection have a notch at two part of precast and the bending bar go into the hole that prepare at precast notch. Alter that the hole get an tiller liquid injection. This connection is pour unshrinkage cement that has same quality with precast concrete. There are three element in this experiment. One is simple beam to repeatly bending test, one is simple beam to monotonic shear test and the else is a beam ~ column element to horizontal cyclic test with constant vertical force. ~ The bending test shown the maximum force is 23.9 ton and first cracking force is 6.64 ton. The computation result with monotonic loading is 38.67 ton as maximum force this test only has 61.8 % monotonic maximum force. Maximum displacement of this test is 61.09 mm at 51 % maximum force. Yielding force at the border and the middle of the connection has same value. Behavior of bar that go into the hole as good as the regular bar. Bending bar layer has not energy dissipation etfect. Crack concentration is at area that has smaller bending bar and at connection border The result of shear test are maximum force is 38.2 ton, the first cracking force is 17.85 ton. The result of it's computation are the maximum force is 28.132 at out of connection and in connection is 41.12 ton ton and the first cracking force is 8.926 ton. The 80 % maximum force that is 30.56 ton has 1.072 mm deflection. _ The failure mode is bending at the beam and than shear failure at last cycle without craking at joint and column. Comparative with monolit the failure mode is more safe. Beam - column test produce good histerisis loop until 28th cycle. The performance trade on force degradation not more than 20 % maximum force, cumulative ductility, degradation of stilfness and energy dissipation from two cycle in a series/elative energy dissipation ratio,secant stiffness between drift limits of -0.0035 and +0.0035. Based of that the element ductility is 6. 673. The location of failure at the connection or at the beam plastic hinge and the element is capable to develop it's strength and deformation after yielding. The system can applied at 6th seismic zone with soft soil. The connection crossing bar is capable to dissipate the energy by tum. This system enrich the kind of precast connection and give any input for concrete structure seismic regulation for precast.