Kinerja Seismik Sambungan Sudut Dinding Bata dengan Perkuatan Plat Berlubang pada Non-Engineered Building

Hapsari, Roro Prasti (2023) Kinerja Seismik Sambungan Sudut Dinding Bata dengan Perkuatan Plat Berlubang pada Non-Engineered Building. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Non-engineered building adalah bangunan yang dibangun tanpa kontribusi tenaga ahli. Salah satu bangunan yang termasuk non-engineered building adalah rumah sederhana. Di Indonesia, kebanyakan rumah kelas bawah berupa unreinforced masonry (URM), pasangan bata tanpa rangka penahan momen. Tidak adanya rangka penahan momen membuat URM sangat lemah terhadap gempa dan dinding bata menjadi pemikul utama beban. Penelitian ini menganalisis kinerja seismik, seperti tegangan geser, daktilitas, dan drift ratio dinding bata dengan perkuatan plat berlubang sebagai perkuatan dinding bata. Penelitian dilakukan secara numerik dan divalidasi dengan penelitian eksperimental. Penelitian secara numerik menggunakan software SAP2000 dan validasi secara eksperimental dengan mock up skala penuh di laboratorium. Terdapat dua pengujian, yaitu uji diagonal tegangan geser dan uji pushover lateral. Eksperimen uji diagonal tegangan geser menunjukkan bahwa dinding tanpa perkuatan memiliki tegangan geser 0,219 MPa, dinding dengan perkuatan plat tiap lapis 0,340 MPa, dan dinding dengan perkuatan plat tiap dua lapis 0,293 MPa. Eksperimen uji pushover lateral menunjukkan bahwa dinding tanpa perkuatan memiliki daktilitas sebesar 1,68, dinding dengan perkuatan tiap lapis sebesar 1, dan dinding dengan perkuatan tiap 2 lapis sebesar 1,05. Pola keruntuhan berupa keruntuhan fleksural di bagian bawah dinding dimana terjadi retak pada sambungan antara mortar dengan bata dan mortar dengan plat BJLS (Baja Lapis Seng) berlubang. Pemodelan di SAP2000 menghasilkan error yang cukup besar, yaitu 52% untuk uji geser dan 85% untuk uji pushover lateral. Dari pengujian yang telah dilakukan, ditemukan bahwa perkuatan plat BJLS berlubang pada lapisan dinding bata dapat meningkatkan tegangan geser hingga 45% tetapi dapat mengurangi kekuatan fleksural hingga 55%.
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Non-engineered building is a building built without any experts’ contribution. One of the non-engineered buildings is house. In Indonesia, most lower class houses are unreinforced masonry (URM), masonry without moment resisting frame. The absence of moment resisting frame makes URM very weak against earthquake and makes the masonry walls the main load bearers. This study analyze the seismic performance of masonry wall with perforated plate reinforcement, such as shear stress, ductility, and drift ratio. This research was carried out numerically and validated by experimental research. Numerical research using SAP2000 software and experimentally with a full scale mock up in the laboratory. There are two tests, namely the diagonal shear tension test and the lateral pushover test. Diagonal shear stress test experiments show that the unreinforced wall has a shear stress of 0.219 MPa, the wall with plate reinforcement per layer is 0.340 MPa, and the wall with plate reinforcement every two layers is 0.293 MPa. The lateral pushover test experiment shows that wall without reinforcement has a ductility of 1.68, wall with reinforcement per layer is 1, and wall with reinforcement every 2 layers are 1.05. The failure pattern occurred is flexural failure at the bottom of the wall, where cracks occur at the joints between mortar and bricks, as well as between mortar and perforated plates. Modelling in SAP2000 produced a fairly large error, namely 52% for the shear stress test and 85% for the lateral pushover test. From the test that have been carried out, it was found that reinforcement of perforated plates in layers of masonry walls can increase the shear strength by up to 45% but can reduce the flexural strength by up to 55%.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	non-engineered building, unreinforced masonry (URM), infrastruktur, perkuatan dinding, plat berlubang, non-engineered building, unreinforced masonry (URM), infrastructure, wall reinforcement, perforated plate
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering) T Technology > TH Building construction > TH1095 Earthquakes and building T Technology > TH Building construction > TH4811 House construction
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis
Depositing User:	Roro Prasti Hapsari
Date Deposited:	28 Jul 2023 01:24
Last Modified:	28 Jul 2023 01:24
URI:	http://repository.its.ac.id/id/eprint/99725

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