Evaluasi Kinerja dan Perkuatan Struktur Gedung Guna Alih Fungsi Bangunan (Studi Kasus : Perubahan Fungsi Ruang Kelas Menjadi Ruang Perpustakaan pada Lantai II Gedung G Universitas Semarang)

To meet the need for good infrastructure of building construction, building new one is not theonly appropriate choice. Efficiency resulted from the functional substitution of existing building to be used with a new function can be a more precise alternative. The existing functional substitutio will result in the change of the building load. Based on the fact, it is necessary to evaluate the performance and the strength of structure at the existing condition to take new load and to calculate the strengthening required. The study is conducted on Building G of Campus III, Semarang University at Jl.Soekarno- Hatta, Semarang. A lecturing space in floor II was proposed to be functionally substituted into library room. It focuses on evaluating performance of structure, the strength of plate, beam, and column, and the bearing of foundation, existing condition based on SNI-2847-2002, earthquake load application based on SNI-1726-2002, and promoting a proposal for strengthening the structure required. The SAP 2000 is used to analyze the structure to gain the required strength value of U (ultimate). BETON 2000 is used to analyze the structure of existing condition to gain the existing strength value of R (resistance). The strengthening of the plate and beam is conducted by adding the Fiber Reinforced Polymer (FRP), while that of column is by adding an external reinforcement The result of the study indicates that the existing fc' is 17 MPa and the fy is 390 MPa. From evaluation on the performance of structure, it can be known that the performance of servicing limit and that of ultimate limit of the building have really met the requirement of SNI-1726-2002. Based on the result of analysis on the structure of plates in floor 2, plates of A, C, E, and H need the strengthening of flexure ability. Beam in floor 2 : 1 A-E ; 1 E-I ; 2 A-E ; 2 E-I ; 3 C-E and ring beam : 0 A-C ; 0 C-E ; 0 E-G ; 0 G-I ; 3 C-E ; 3 E-I require the strengthening of flexure ability and shear ability. The strengthening of flexure and shear abilities by adding the FRP is found to be able to add the flexure and shearing abilities of plates and beam. The result of analysis on the strengthening of flexure ability by adding reinforcement shows that it can add the flexure ability of column. And form analysis on foundation, it can be known that foundation is able to bear new load so it does not require the strengthening

Penilaian Kondisi Jembatan dengan Metode Nysdot (Studi Kasus 3 Jembatan di Kota Kendari)

Bridge plays a vital role in supporting life activity. A lot of bridges are required due to many watercourses running from mountain that also requires a lot of amount in the budget. Neglecting such problem may lead to traffic disturbance and discomfort. The purpose of this research is to assess the bridge condition and its components, to compose the handling priority program and the bridge component priority. The research was located in Kendari of the Province of Sulawesi Tenggara. Located above Kendari Bay, a crowd economic area, Kendari has the important downtown access road. NYSDOT (New York State Department of Transportation) Method and completed with AHP (Analytical Hierarchy Process) method were used to assess the bridge condition. The bridge component scoring was calculated using the AHP method. The calculated components were compiled using the matrix of paired-comparison by referring the importance value. The, bridge component scoring consisted of three categories: (a) first category: the structural component received direct traffic load (component distributing traffic load), which was given the first priority where the importance value was higher, (b). Second category: the structural component received indirect traffic load, (c). Third category: non structural component. Calculation method AHP for every bridge component was obtained through paired-comparison. Components with bad value were found in Pasar Baru Bridge, which was rated 3 for its extension component, paving surfaces, pavement and curb. The subsequent ones were the Tripping bridge, which was rated 4 for its extension joint component and Kadia bridge which was rated 5 on its main beam, abutment, deck and back wall. Both, NYSDOT and AHP methods resulted in same assessment figures. The proposed priority handlings in subsequent order for the three bridges were Pasar Baru Bridge, Kadia Bridge and Tripping Bridge. The condition indexes were 4,514 (Average), 5,722 (Good) and 6,083 (Very Good), respectively. The proposed handlings for Pasar Baru and Kadia bridge were rehabilitation and maintenance

EVALUASI TINGKAT KERUSAKAN JALAN DENGAN METHODE PAVEMENT CONDITION INDEX (PCI) UNTUK MENUNJANG PENGAMBILAN KEPUTUSAN (Studi Kasus: Jalan Lingkar SeLatan, Yogyakarta)

Being functioned as the main transportation line for passengers and cargo, any distress on the pavement of South Ring Road in Yogyakarta requires rehabilitation to prevent severe condition. But before the rehabilitation is carried out, it is required to evaluate the road pavement condition. The objective of this study is to appraise or to value the road pavement condition. This research implementation was visually completed by using Pavement Condition Index Method. It was started by dividing the road into several research units in 100 x 3.5 m by size for each unit sample. Then, each of the research unit was observed and measured to identify the distress type and severity level in order to obtain PCI rating value of the pavement. Result of the study showed that the distress types included the alligator cracking, block cracking, depression, longitudinal and transverse cracking, patching, polished aggregate, shoving, slippage cracking and weathering/graveling. The prevailing ones were block cracking and alligator cracking. The damages occurred only on some parts of the segment. Therefore, it was better to adjust the treatment for such damage for the distress type. Treatment priorities should be given to sample unit 23 B (lane 1) due to its smallest PCI value, which was 22, with VERY POOR condition pavement rating

SISTEM INFORMASI PENGAWASAN KENDARAAN ANGKUTAN BARANG PADA JEMBATAN TIMBANG UNTUK PENENTUAN PELANGGARAN MUATAN LEBIH DAN DAMAGE FACTOR (Studi Kasus Daerah Istimewa Yogyakarta)

Government has determined maximum limit of axle pressure for vehicle passing in the road of MST (Heaviest Axle Load) < 8 ton, MST 8 ton and MST 10 ton. But, the problem is that there are many overloaded freight vehicles. The lack of control and law application causes the happening of case like overloaded resulting in faster damage than the planned duration and traffic accident involving freight truck. Daerah Istimewa Yogyakarta is a province connecting East java – Central Java – West Java. It has potential to serve traffic flow, either passenger or freight. Therefore it needs a system to control freight vehicle in measuring bridge. Information System of Freight vehicle control (SIWASAL) used reaction analysis of freight vehicle dimension and the calculation of damage factor. Axle configuration discussed based on field observation and load survey carried out by PUSTRANS JALAN in 2002 in Pantura, comprised of 1.1, 1.2, 1.22, 11.22, 1.2+22 (coupled freight vehicle), 1.22+22 (coupled freight vehicle), 1.2-2 (attached freight vehicle), 1.2-22 (attached freight vehicle), 1.22-22 (attached freight vehicle), 1.22-222 (attached freight vehicle). The result of this system helped the operator of measuring vehicle weight limit’s in applying the law and could be used by the government as the database in controlling, planning, maintaining and developing road pavement and give information, either to the employer of freight vehicle and society. The release of data process will present the number of the vehicle, trade mark/type, the name of the company, origin/destination, type of goods loaded, JBB, JBI, the weight of each vehicle axle, loading capacity, MST and vehicle damage factor. The recapitulation of freight vehicle control comprised of vehicle type, the name of the company, origin, destination, type of goods and axle configuration comprising of damage factor amount presented in the form of graphic periodically

SISTEM INFORMASI PENGAWASAN KENDARAAN ANGKUTAN BARANG PADA JEMBATAN TIMBANG UNTUK PENENTUAN PELANGGARAN MUATAN LEBIH DAN DAMAGE FACTOR (Studi Kasus Daerah Istimewa Yogyakarta)

Government has determined maximum limit of axle pressure for vehicle passing in the road of MST (Heaviest Axle Load) < 8 ton, MST 8 ton and MST 10 ton. But, the problem is that there are many overloaded freight vehicles. The lack of control and law application causes the happening of case like overloaded resulting in faster damage than the planned duration and traffic accident involving freight truck. Daerah Istimewa Yogyakarta is a province connecting East java – Central Java – West Java. It has potential to serve traffic flow, either passenger or freight. Therefore it needs a system to control freight vehicle in measuring bridge. Information System of Freight vehicle control (SIWASAL) used reaction analysis of freight vehicle dimension and the calculation of damage factor. Axle configuration discussed based on field observation and load survey carried out by PUSTRANS JALAN in 2002 in Pantura, comprised of 1.1, 1.2, 1.22, 11.22, 1.2+22 (coupled freight vehicle), 1.22+22 (coupled freight vehicle), 1.2-2 (attached freight vehicle), 1.2-22 (attached freight vehicle), 1.22-22 (attached freight vehicle), 1.22-222 (attached freight vehicle). The result of this system helped the operator of measuring vehicle weight limit’s in applying the law and could be used by the government as the database in controlling, planning, maintaining and developing road pavement and give information, either to the employer of freight vehicle and society. The release of data process will present the number of the vehicle, trade mark/type, the name of the company, origin/destination, type of goods loaded, JBB, JBI, the weight of each vehicle axle, loading capacity, MST and vehicle damage factor. The recapitulation of freight vehicle control comprised of vehicle type, the name of the company, origin, destination, type of goods and axle configuration comprising of damage factor amount presented in the form of graphic periodically

KAJIAN NILAI KUAT TEKAN BEBAS TANAH LEMPUNG EKSPANSIF DICAMPUR KAPUR DAN SEMEN SEBAGAI BAHAN PEMBUATAN BATU BATA

The phenomenon of expansive soils is one of the serious problems in geotechnical must soon be addressed. Expansive soil in Soko the paths other than can result in damage, can be used as material for for making bricks with a mixture of cement and lime without through the process of combustion. This research aims to analyze the brick making expansive soils using a mixture of cement and lime. The results of this study indicate with variations in cement content of 8%, 12%, and 14%. A total of six kinds of mixture were made with a proportion of cement with a 4% variation of 8%, 12%, 16% by Lim