{"title":"ANALISIS PERPINDAHAN PADA STRUKTUR BANGUNAN MENGGUNAKAN BASE ISOLATOR DI WILAYAH GEMPA KUAT","authors":"Muliadi Muliadi, M. Afifuddin, T. B. Aulia","doi":"10.30811/PORTAL.V9I1.610","DOIUrl":"https://doi.org/10.30811/PORTAL.V9I1.610","url":null,"abstract":"The meeting of three major tectonic plates makes Indonesia prone to earthquakes, be it the Indo-Australian plate, the Eurasian plate, and the Pacific plate. Earthquakes are caused by the release of energy generated by the pressure caused by moving plates. Its essence is not earthquake that damage building but anticipation of building which must be in earthquake resistant design. In this case, the building structure must be designed to be earthquake resistant. One of earthquake resistant building technology is technology with base isolator system. This study aims to determine the displacement analysis that occurs due to the effects of earthquake on the structure of the building. Both in the use of base isolator and without using base isolator. The design of this structure is done by analyzing the time dynamic history load in the SRPMK building (struktur rangka pemikul momen khusus). With 10 storey floor building, regular shape, in SRPMK building. The structural elements reviewed in analyzing the displacement of the building structure are in a column, either for fixed base building of SRPMK or for SRPMK building with base isolator. Data analysis is done by using SAP2000 computer software. The result of analysis shows that the maximum fixed column SRPMK structure building structure on the 3rd floor reaches 27.97 mm from the base of the SRPMK fixed base. While at the base of the isolator there is a displacement of 5.79 mm from the base of SRPMK base isolator. The result of analysis shows that the building of SRPMK base isolator compared with SRPMK building, the value of displacement of final floor level structure (floor 10) can be reduced to 15.85%. Application of base isolator in this case can be used as its function can reduce earthquake load.Keyword : base isolator, displacement, SRPMK; analysis of time history.","PeriodicalId":378653,"journal":{"name":"Portal: Jurnal Teknik Sipil","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128592310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ANALISA PERBANDINGAN SIMPANGAN STRUKTUR GEDUNG SET BACK TANPA DINDING GESER DAN PEMODELAN LETAK DINDING GESER DI ZONA GEMPA TINGGI","authors":"Tondi Amirsyah Putera, F. Hidayat","doi":"10.30811/portal.v9i1.611","DOIUrl":"https://doi.org/10.30811/portal.v9i1.611","url":null,"abstract":"The high-rise building structure is prone to lateral forces, mainly due to the force generated by the earthquake. In calculating the multilevel building structure there are 2 ways, namely with Open Frame and Open Frame combination with shear wall. The shear wall is a wall that acts as a stiffener and is also a core wall for rigging entire buildings designed to withstand shear forces, lateral forces caused by earthquakes. so that the horizontal deformation (deflection) becomes small. The analysis used in this research is spectrum response analysis based on SNI 1726: 2012. This research has 3 model of set back building which will be reviewed, that is the model of set back building with special moment frame system, the model of backyard building with shear wall of each side and model of set back building with shear wall only on one side. All load inputs, stiffness and structural dimensions are the same, which differ only the special moment frame system model and the sliding wall placement used. This building has a height of 39.5 meters (10 floors). Based on this data it shows that the deviation result with the deviation modeling for the model is 0.075 m for the X and 0.064 direction for the Y direction for model 2 0.051 m for the X and 0.050 m directions for the Y direction and for model 3 is 0.074 m for the X and 0.048 for direction Y.Keywords: Set Back, Irregular Building, Drift Story, Shear Shear, Shear Wall, Special Moment Resume Frame.","PeriodicalId":378653,"journal":{"name":"Portal: Jurnal Teknik Sipil","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126087036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"INVESTIGASI KEKUATAN BETON SILINDER GEOPOLIMER ABU AMPAS TEBU","authors":"Cut Yusnar, Syukur Hidayat","doi":"10.30811/PORTAL.V9I2.617","DOIUrl":"https://doi.org/10.30811/PORTAL.V9I2.617","url":null,"abstract":"The addition of elements such as pozzolan ingredients to concrete mixtures has been proven can increase the value of concrete compressive strength. This study aims to determine the microstructural effect on the replacement of 10% of Portland cement weight with bagasse ash (sugarcane bagasse). Scanning Electromicroscopphy Microscopphy (SEM / EDX) shows the dominant percentage of bagasse ash is Silica element 53% in addition to other elements such as Carbon (C) and Hydrogen (H). The C-S-H unsure bond pattern on concrete mortar shows a Type III bonding pattern at early ages and bonding patterns I and III on mortars that have reached the age of 28 days. Porosity level decreases with increasing age of concrete mortar. With the reduced porosity will increase the density and increase the compressive strength of concrete mortar. This porosity level is lower than that of concrete mortar without the addition of bagasse ash.Key words: Microstructure, silica, concrete mortar, compressive strength, porosity.","PeriodicalId":378653,"journal":{"name":"Portal: Jurnal Teknik Sipil","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115051739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"FEASIBILITY OF UTILIZATION EAFD AS CEMENT REPLACEMENT IN CONVENTIONAL CONCRETE","authors":"A. Fauzi, S. Syukri, Mulizar Mulizar, M. Reza","doi":"10.30811/PORTAL.V9I1.661","DOIUrl":"https://doi.org/10.30811/PORTAL.V9I1.661","url":null,"abstract":"Abstract — Industrial waste products can be considered as renewable resources, one of them is a steel manufacturing, which produced dust waste contain sponge iron, scrap metal and other steel wastes that impacted to environment. This waste material was called Electric Arc Furnace Dust (EAFD). This study investigates the feasibility of using EAFD as a cement replacement compared to silica fume (SF) and fly ash (FA) in terms of Chemical composition, workability, setting time, compressive strength and rapid chloride permeability resistance. The results showed that workability of EAFD is almost similar to control even if percentage of EAFD was increased. It is not refer to FA more workable or SF less workable with increase percentage of replacement. Furthermore, the EAFD significantly affect the setting time, which 3% EAFD replacement bring to prolong final setting time to more than 24 hours, while the setting time of SF and FA did not significant affected along with the increase replacement percentage. In addition, the 3% EAFD is optimum replacement for compressive strength and it is equivalent replacement level to 5% SF and 15% FA. Finally, the EAFD enhance the resistance for rapid chloride permeability more than FA but less than SF.","PeriodicalId":378653,"journal":{"name":"Portal: Jurnal Teknik Sipil","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131914721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"STUDI PARAMETRIK DEFORMASI TORSI LANTAI BANGUNAN ASIMETRIS SEBIDANG DIPENGARUHI OLEH GEMPA PULSE DAN TANPA PULSE","authors":"Ade Faisal, Gamal Halim","doi":"10.30811/PORTAL.V9I2.616","DOIUrl":"https://doi.org/10.30811/PORTAL.V9I2.616","url":null,"abstract":"Earthquake resistant building must be designed with a proper plan configuration. Although the regular and symmetrical building plans have been known to have a good behaviour under earthquake loads, but the facts have demonstrated that many asymmetrical plan buildings are built for the architectural reasons. Irregular plan buildings cause mass distribution, stiffness, and strength asymmetries which in turn produce the eccentricity to the centre of mass. In this research, the asymmetrical buildings are simulated under earthquake ground motion containing pulse. The study aims to evaluate the drift and floor rotations that occur in the asymmetrical buildings. The results indicate that the difference in drift of symmetrical and asymmetrical buildings reach 8% to 20%. The rotation occurred on the rigid side (high stiffness side) is smaller than the flexible side (low stiffness side). The difference in eccentricity affects clearly the inelastic floor rotation.Keywords: Eccentricity Stiffness, Pulse Ground Motion, Floor Rotation","PeriodicalId":378653,"journal":{"name":"Portal: Jurnal Teknik Sipil","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131971196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Frontmatter (Front Cover, Editorial Team, and Table of Contents)","authors":"E. Editor","doi":"10.30811/portal.v9i1.662","DOIUrl":"https://doi.org/10.30811/portal.v9i1.662","url":null,"abstract":"Frontmatter (Front Cover, Editorial Team, and Table of Contents) Volume 9 Nomor 2 Oktober 2017","PeriodicalId":378653,"journal":{"name":"Portal: Jurnal Teknik Sipil","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133614823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"PERENCANAAN STRUKTUR RANGKA ATAS JEMBATAN RANGKA BAJA PADA GAMPONG LEUBOK PEMPENG KECAMATAN PEUREULAK KABUPATEN ACEH TIMUR","authors":"M. Ridha, Khairul Miswar","doi":"10.30811/portal.v8i2.605","DOIUrl":"https://doi.org/10.30811/portal.v8i2.605","url":null,"abstract":"Steel frame bridge Gampong Leubok Pempeng districs Peureulak counties Aceh Timur is a connecting Leubok Pempeng village to Alue Batee village and others village in the peureulak districts with spans of 30 meters and width of 7 meters and including class B. This thesis aims to plan for building a bridge over a steel frame using a standard warren type which includea backrest, sidewalk, the vehicle floor plate, longitudinal girder, cross girder, main frame and bolt connection. To plan the loading bridge using RSNI T-02-2005 and steel structural design using RSNI T-03-2005, the calculation method using LRFD. Results obtained plannin backrest pipe diameter 48,6 mm, sidewalk of 25 cm thick reinfored concrete fc’ 25 Mpa, reinforced cocnrete slab 20 cm and the quality of steel profiles longitudinal girder using steel profiles H 350 x 175 x 7 x 11, cross girder using steel profiles H 488 xx 300 11 x 18. Top wind bracing using steel profiles H 125 x 125 x 6,9 x 9 and profiles L 125 x 125 x 12, while lower wind bracing using steel profiles L 125 x 125 x 12. Frame force calculated with matri method. Rods up, lower and diagonal using steel profiles H 300 x 300 x 10 x 15. Connecting bolts type A-325 diameter 1 inch and ½ inch. Longitudinal girder deflection is 3,130 mm < 8,333 mm, cross girder deflections is 1,002 cm < 2 cm and deflection in the main frame is 3,12 cm smaller than the allowable deflection 12,5 cm.Keyword : steel frame bridge, Matrix method","PeriodicalId":378653,"journal":{"name":"Portal: Jurnal Teknik Sipil","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127535092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"PERENCANAAN BIAYA DAN METODE PELAKSANAAN PADA JALAN PAMEU-GENTING GERBANG KABUPATEN ACEH TENGAH","authors":"F. Bakrie","doi":"10.30811/portal.v8i2.608","DOIUrl":"https://doi.org/10.30811/portal.v8i2.608","url":null,"abstract":"Cost Planning is planning a number of calculations necessary costs for material, labor, equipment and expenses related in implementation of the project Construction and Implementation Method road is a basic reference in the implementation of road construction by Standard Highways applied to the road Pameu- Genting Gate starting from the STA 45 + 850 s I d 49 + 500. Calculation of Budget Plan include Job Layers Base Down (LPB) Aggregate B, Works layer Piling Up (LPA) Aggregate A, (Prime Coat), Works Layer Binder AC-BC and Layer Aus AC-WC (Surface). The method used is Estimation Method Index (E.l) Highways, 2010. From the calculation results obtained execution time of 166 working days,fee for Base Aggregate Base Layer B Amounting Rp.4. 032.876,00, -. Costs for Top Layer Aggregate Base A sum Rp.3.376.312,816.50, -. Fees for absorbing binder layer of Rp. 122,801,512.50, - Fees for Layers Between AC-BC (Surface) of Rp. 4. 732.319.951.10, - and the cost for AC-WC Aus layer Rp.2.331.857.250.00 So the sum total budget is of Rp. 14,752,380,906.00, - the value added tax (VAT) of 10% as well as the scheduling of the execution time using the S curve. and the method of implementation applied to the project include Job Layers Base Down Aggregate B, Layer Piling Up Aggregate A, (Prime Coat), Layer Binder AC-BC and and the cost for AC-WC (Surface) with a systematic way, accuracy, effective and efficient based on the plans.Keywords: Budget Plan, S curve, and Methods of Implementation","PeriodicalId":378653,"journal":{"name":"Portal: Jurnal Teknik Sipil","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133335244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"RENCANA ANGGARAN BIAYA DAN METODE PELAKSANAAN PADA PROYEK PEMBANGUNAN JALAN AKSES PELABUHAN PERIKANAN LAMPULO STA 0+-000 SID 1+-013 KOTA BANDA ACEH","authors":"M. Irfan","doi":"10.30811/portal.v8i2.607","DOIUrl":"https://doi.org/10.30811/portal.v8i2.607","url":null,"abstract":"Lampulo Fishing Port Road Access Project, Banda Aceh City with 1013 m of road length, 10 m road width, base course layer 15 cm thickness, subcase 20 cm layer, 6 cm surface Aspalt Concrete Binder Course (AC BC) and Talud work . This Final Project aims to determine the method of implementation and budget costs on the project. The calculation of the Budget Plan uses the EI Analysis (Estimated Index) to calculate the cost of Sub Base, Base Course, Prime Coat, Surface Aspalt Concrete Binder Course (AC-BC), and Talud work. In this calculation, the cost for Sub Base work is Rp.1.027.631.772,00, -. Work Base Course Rp.970.243.296, 00, -. Prime coat job Rp.121.358.725,00, -. Surface layer work Aspalt Concrete Binder Course (AC-BC) Rp.1.906.855.195,00, Talud Work Rp.2.639.141.122, 00, -. So the total cost of the budget is Rp.6.695.230.109, 00. As well as scheduling the implementation time using the curve S. The preparation of the Implementation method applied to the Project includes Sub Base, Base Course, Prime Coat and Surace Aspalt Cpncrete Binder Course (AC-BC) work in an effective and efficient manner based on the drawing of the plan.Keywords: Budget Costs, S Curve, and Methods of Accounting.","PeriodicalId":378653,"journal":{"name":"Portal: Jurnal Teknik Sipil","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129545882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}