Studi Pengaruh Tangga pada Pemodelan Struktur Bangunan Beraturan Akibat Beban Gempa dengan Menggunakan Software Etabs

Dalam mendesain dan menganalisis struktur gedung menggunakan software, seringkali tangga itu ditiadakan, sehingga kurang diketahui bagaimana perbedaan dan dampak dari masing-masing respon struktur. Oleh karena itu, penelitian ini bertujuan untuk mendapatkan dampak dan perbedaan dari struktur gedung yang didesain menggunakan software. Metode yang digunakanan adalah analisis respon spektrum berdasarkan SNI 2019. Struktur gedung didesain menjadi 3 jenis, yaitu struktur gedung tanpa tangga, struktur gedung tanpa tangga dengan void, dan struktur gedung dengan tangga. Dalam penelitian ini analisis strukturnya menggunakan Software Etabs 2016. Berdasarkan hasil penelitian dapat diketahui bahwa terdapat perbedaan dari 3 jenis struktur yang telah dianalisis, yaitu pada gaya geser dasarnya. Model 3 memiliki nilai yang lebih besar dari model 1 dan model 2 (Model 3: 2521,7 kN > Model 1: 1713,5 kN > Model 2: 1661,04 kN). Kemudian untuk gaya dalamnya juga menunjukan perbedaan yang cukup besar, hal ini akan berpengaruh pada jumlah tulangan-tulangannya. Dan yang terakhir untuk nilai perpindahan, pada gedung tanpa tangga menunjukan nilai perpindahan yang lebih besar daripada gedung dengan tangga, hal ini disebabkan oleh tangga yang mengakibatkan nilai kekakuan menjadi lebih besar dari nilai perpindahannya. Perbedaan juga ada pada gedung pertama yang memiliki nilai perpindahan yang lebih besar dari gedung kedua, hal ini disebabkan karena terdapat bukaan void pada gedung kedua.

Analisis Kinerja Struktur Pada Model Bangunan Setback Menggunakan Metode Time History Analysis

Bencana gempa bumi dapat menelan banyak korban jiwa. Oleh karena itu desain bangunan tahan gempa sudah menjadi kewajiban dalam merancang suatu bangunan sebagai antisipasi apabila terjadi gempa bumi.Penelitian ini bertujuan untuk mengetahui level kinerja dari sistem struktur setback dan sistem struktur non setback menggunakan metode time history analysis. Terdapat 3 model struktur yang dikaji yaitu struktur non setback dengan sistem struktur 6 lantai, dimana bentang terpanjang 20 m, bentang terpendek 15 m, dan tinggi setiap lantai 3,5 m, Sedangkan model setback1, setback di aplikasikan pada lantai 6 dan model setback2, setback diaplikasikan pada lantai 5 dan lantai 6. Hasil penelitian ini menunjukan kapasitas penahan gempa lateral terbesar adalah bangunan setback satu lantai pada arah x (timur-barat), dengan perbedaan sebesar 1,07%, sedangkan pada arah y (utara-selatan) kapasitas penahan gempa terbesar adalah bangunan non setback, dengan perbedaan sebesar 4,79%. Level kinerja struktur yang dihasilkan dari bangunan setback dan non setback bervariasi, dari immediate occupancy sampai damage control.

Analisis Kinerja Struktur Rangka Beton Bertulang Beraturan Dengan Penambahan Tingkat Menggunakan Struktur Baja

The change of plans on gradually development in building structure can be occur with building operational consideration and owner financial. The purpose of this study was to determine the level of performance of the reinforced concrete frame structure with additional levels using steel structures with different span variations. The results of the analysis are used to determine how big the deviation is between levels and to control the level of structure performance. The conclusion of the study shows that the performance level of the structural model analyzed is immediate occupancy (IO) with a total drift ratio and interstorey drift ratio value of the initial building structure (C3S0) in the x direction and y direction of 0.0004, and for variations in building structure with the addition of levels using steel structures (C3S1, C3S2, C5S1, C5S2, C7S1, C7S2) in the x direction ranging from 0.0005-0.0007 and in the y direction ranging from 0.0010-0.0024.

Studi Penggunaan Balok Lintel Pada Bangunan Gedung Infilled Frame 2 Lantai Menggunakan SAP2000

The two stories building construction or which is commonly called the two stories building these days is very popular in Indonesia. The type of multistories building technology that develop in the world of construction is very diverse, this development is can not be separated from the anticipation of the various of loading conditions. Based on that facts, the research of the use of lintel beams in 2 stories infilled frame buildings is conducted. The analysis can be done by using SAP2000 software. The structure model analyzed by comparing the structure responses between the building that use the lintel beams system and the other one is the building that don’t use that system, where as the idealized loading is same. The result of the analysis obtained by using the lintel beams system the value of maximum x and y axis base shear respectively are 344,088 KN and 363,001 KN, the maximum column moment is occurred in column 84 with the value is 99,58 kNm, and the maximum x axis lateral drift is occurred in joint 128 with the value is 0.000401 m, while the y axis is occurred in joint 105, 128 with the value is 0,000533 m. The analysis result that obtained for the building that don’t use the lintel beam system, the x and y axis maximum base shear value respectively is 336,425 KN and 354,539 KN, the maximum column moment occurs in column 84 is 98,98 kNm, and the x axis maximum drift lateral occurs in joint 128 with value is 0,000406, while the y axis maximum lateral drift occurs in joint 105, 128 with value is 0,000532. So we obtained the percentage comparison on base shear value between 2 stories infilled frame building that use lintel beams system and the building that doesn’t use the lintel beams system for x axis is 1,45% and y axis is 1,13% , and for the percentage comparison on maximum column moment value is 0,30% , while the percentage comparison on drift lateral value for x axis is 0,62% and y axis is 0,09%

Debit Puncak Harian Tahunan Metode HSS Nakayasu dan Debit Terukur di DAS Muke Kabupaten TTSS SERVICES-CURVE NUMBER DAN DEBIT TERUKUR DI DAERAH ALIRAN SUNGAI MUKE KABUPATEN TIMOR TENGAH SELATAN

The Muke River is prone to flooding. flooding is caused by conversion in land use due to the migrating plantation system. In the Muke river, it is necessary to analyze the discharge estimation to determine the potential of water in the Muke river. In this study, the authors performed peak discharge calculation using measured calculation model and calculate. Measured calculations using discharge’s curve and calculated by using hydrographic method of synthetic unit namely Nakayasu. The results of the analysis for the calculation of discharge on the Muke river using the discharge curve obtained that the peak discharge occurred in 2012 with Qmax = 99.41 m3/s and the smallest discharge occurred in 2010 with Qmin = 13.19 m3/s, the results of the analysis for the calculation of discharge on the Muke river using the Nakayasu method obtained peak discharge occurred in 2010 with Qmax= 184.74 m3/s and the smallest discharge occurred in 2014 with Qmin = 94.33 m3/s.

Pemodelan Numerik Perilaku Lentur Dan Defleksi Elemen Balok Ferrogeopolymer

Ferro-gepolymer is a type of thin-wall reinforced element constructed of geopolymer cement mortar reinforced with closely spaced relatively small diameter mesh in layers. In this investigation, the flexural and the deflection behavior of the ferro-geopolymer beams were determined numerically and the results compared to the experimental values. All the experimental material properties adopted for numerical modeling. The numerical model of all the five beams was 600 mm effective span, 100 mm width, and 100 mm height. Each specimen of the beam model having different layers of wire mesh that are 3, 5, 7, 9, and 11. The results showed that the greater the number of layers, the variation between numerical and experimental results follows the same path without much difference. The numerical result showed that the greater the number of layers, the strength was increases but insignificant.

Base Shear Struktur Beton Bertulang Yang Menggunakan Base Isolator Akibat Beban Gempa Dengan Menggunakan Etabs

The sudden release of energy within earth creates seismic waves on earth’s surface that is earthquake. This research was carried out using a base isolator type of HDR with Certification Number MVBR-0516 (XO.3R) to reduce base shear, displacement and internal forces acting on the structure. This study uses time history analysis method with some earthquake loads in the form of acceleration acceleration. The objectives of the study were to determine the base shear of a reinforced concrete structure building using a base isolator and without using a base insulator. The results of this study indicate the use of base insulators reduces base shear by about 20% -67% and 14% -70.5% for earthquakes in the x direction to the east and west. Meanwhile, in the y direction earthquake, it was around 43% -70% and 43% -62% to the south and north

Studi Kefektifan Dinding Geser pada Bangunan Tingkat Tinggi Dalam Mengurangi Simpangan Struktur

The main principle of designing the multi-storey building is increasing the building strength on lateral force. The higher the building, then the more vulnerable the building in resisting the lateral force, such as earthquake force. In structure design in multi-storey building, there are 2 systems lateral force restraint that often used, that are frame that use shear wall and frame without shear wall. The purpose of this research is to analyze the effect of shear wall placement with respect to structure deflection as an effect of quake load also to find out the sensitivity of the adding the amount of shear wall on decreasing rate of structure deflection as an effect of quake load, that the calculation of quake load effect done by use the Equivalent Static Analysis Method. The result of the analysis obtained the structure deflection decreases with the increasing of the amount of shear wall and the average of decreasing rate of structure deflection for every addition of 1% shear wall is 1.97% also the layout of shear wall placement very react on structure deflection alteration.

Studi Parametrik Pengaruh Variasi Pengekangan Terhadap Nilai Kapasitas dan Daktilitas Penampang Kolom Beton Bertulang Bentuk T

Column has a function as a successor of the entire building load for foundation with a cross-sectional shape which generally a square. In its development, the shape of column section has begun to vary, namely the 'L', 'T' and 'Plus (+)' shaped sections. The purpose of this study was to determine the effect of restraint parameters such as diameter of stirrups, distance between stirrups, diameter and configuration of longitudinal reinforcement also concrete quality on the capacity and ductility of T-shaped non-square column using Response-2000, XTRACT and SAP2000 programs to ensure the percentage comparison of the analysis result data is not more than 5%. The results of this study for each type of cross-section, namely each increase in the percentage of concrete quality parameters ranging from 25-35 MPa, the diameter of longitudinal reinforcement and diameter of stirrups will increase the value of capacity and decrease the value of ductility, while for each increase in the percentage of parameters the distance between stirrups will decrease the value of capacity and the ductility value. Meanwhile, the variation of longitudinal reinforcement configuration produces T2-1 section as cross section with the largest capacity value and T1-2 section as cross section with the greatest ductility value.

Studi Perbandingan Kinerja Sistem Struktur Setback berdasarkan Metode ATC 40, FEMA 356 dan SNI 1726:2012

The aim of this study was to compare the performance level of the setback structure system and the non-setback structural system using the ATC-40, FEMA 356 and SNI 1726-2012 methods. The non-setback structure have the shortest span of 15 m, the longest span of 20 m and the level of each floor was 3.5 m but the setback structure have setback system on the longest span of 10 m at the 5th and 6th floor level. The results showed that the performance level based on all methods of the sectback structure system is at the immediate occupancy level while the non-setback structure system, based on SNI 1726-2012, the performance level is immediate occupancy for the longest span and the shortest span is damage control. On the other hand, based on the ATC-40 and FEMA 356 methods, the performance level of the non-setback structure is at the immediate occupancy level. Drift on non-setback buildings based on the SNI 1726-2012 method is 0.011, based on the ATC-40 method is 0.007, and based on FEMA 356 is 0.005. Drift on the setback building based on the SNI 1726-2012 method is 0.010, based on the ATC-40 method is 0.006, and based on FEMA 356 is 0.004.