Simetrikal: Journal of Engineering and Technology最新文献

A Study on the Road Conditions Assessment Obtained from International Roughness Index (IRI): Roughometer Vs Hawkeye 基于国际粗糙度指数(IRI)的道路状况评价研究:Roughometer Vs Hawkeye

Simetrikal: Journal of Engineering and Technology Pub Date : 2019-09-28 DOI: 10.32734/jet.v1i2.756

S. Samsuri, M. Surbakti, A. Tarigan, R. Anas

{"title":"A Study on the Road Conditions Assessment Obtained from International Roughness Index (IRI): Roughometer Vs Hawkeye","authors":"S. Samsuri, M. Surbakti, A. Tarigan, R. Anas","doi":"10.32734/jet.v1i2.756","DOIUrl":"https://doi.org/10.32734/jet.v1i2.756","url":null,"abstract":"Study is aimed to find out what is the representation of IRI (International Roughness Index) from the Roughometer results if it was used as substitute of IRI from the Hawkeye results on the road conditions assessment, which is the hawkeye device is included in the Class I category of roughness measurement devices, while the Roughometer is in the Class III. The Student’s t statistical operation is used to find the representation of IRI from the Roughometer results as substitute of IRI from the Hawkeye results. It is determined by analyzing the comparison of the mean values of both measurement results. The study was conducted on three national road sections in North Sumatra Province, namely: Bts. Kota Binjai – Bts. Kota Medan road with a length of 7,300 meters, Bts. Kota Tebing Tinggi – Bts. Kabupaten Simalungun road with a length of 18,800 meters, and Bts. Kabupaten Simalungun/Bts. Kabupaten Sergai road with a length of 15,000 meters. The IRI values were measured by using Roughometer and Hawkeye devices. The measurements were carried out with the survey team from the Center for Implementation of the National Road II Medan, which was also the facilitators in providing the survey equipment, Roughometer and Hawkeye. The statistical test results that the IRI values from the Roughometer measurement results were significantly different from the IRI values from the Hawkeye measurement results (Ho was rejected) because the Student’s t-test results for the three road sections showed that tcount > tcritical and p-value < 0.05. And the assessment of the road functional conditions using Roughometer showed the same results on one road section but worse results on the other two road sections compared to assessment of the functional conditions with Hawkeye. Based on the analysis results, it can be concluded that the IRI values from Roughometer were more conservative in representing the functional conditions of the road when used as a substitute for the IRI values from Hawkeye.","PeriodicalId":117730,"journal":{"name":"Simetrikal: Journal of Engineering and Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126674849","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}

引用次数: 4

Performance Analysis of Steel Portal Structures with Braces Designed Based on Allowable Interstory Drift Limits 基于层间容许漂移限值的支撑门钢结构性能分析

Simetrikal: Journal of Engineering and Technology Pub Date : 2019-09-28 DOI: 10.32734/jet.v1i2.979

Zulfazly Putra, J. Tarigan

{"title":"Performance Analysis of Steel Portal Structures with Braces Designed Based on Allowable Interstory Drift Limits","authors":"Zulfazly Putra, J. Tarigan","doi":"10.32734/jet.v1i2.979","DOIUrl":"https://doi.org/10.32734/jet.v1i2.979","url":null,"abstract":"Abstract. The earthquake resistant steel frame structure is designed to be able to withstand large inelastic deformations in the case of an earthquake. The applicable regulations still allow the use of elastic design methods in the form of pushover analysis and time history analysis evaluation as the basis for the design. The building under consideration consists of six floors with the function as an office building. The location of the building is in Banda Aceh with soft soil conditions. The structural analysis used the help of the Extended Three Dimensional Analysis of Building System Program (ETABS). The method of analysis of steel portal structures used was pushover analysis. Analysis of the given load was static loading based on 1987 PPPURG, and earthquake dynamic loading used a variety of response spectrum procedure analysis based on SNI 03-1726-2012. Structural analysis was assumed to be the strong column weak beam concept. From the results of calculations, it is found that the steel portal structures (with and without braces) designed based on allowable interstory drift limits have met the requirements. The performance level of the steel portal structure without bracing was LS, while the performance level of the steel portal structure using bracing was IO. The largest amount of steel used in terms of weight was found in the case of a portal without braces.","PeriodicalId":117730,"journal":{"name":"Simetrikal: Journal of Engineering and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121519633","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}

引用次数: 0

The Structural Performance Analysis of Base-Isolated Hospital Buildings with Analysis Modal (Case Study: General Hospital in Labuhan Batu Utara Regency Area) 基于分析模态的基础隔离式医院建筑结构性能分析(以纳布汉Batu Utara地区综合医院为例)

Simetrikal: Journal of Engineering and Technology Pub Date : 2019-09-28 DOI: 10.32734/jet.v1i2.736

M. Irwansyah, J. Tarigan, Zulfazly Putra

{"title":"The Structural Performance Analysis of Base-Isolated Hospital Buildings with Analysis Modal (Case Study: General Hospital in Labuhan Batu Utara Regency Area)","authors":"M. Irwansyah, J. Tarigan, Zulfazly Putra","doi":"10.32734/jet.v1i2.736","DOIUrl":"https://doi.org/10.32734/jet.v1i2.736","url":null,"abstract":"The development of earthquake analysis towards structures is required to prevent damages and loss in buildings due to earthquakes. The base isolation system is a simple design approach for earthquake-resistant buildings to protect the structures and components from the risk of earthquake damages by using the concept of reducing earthquake forces. This research aims to analyze the performance of a general hospital building in Labura Regency area in order to know the safety of the building in terms of period, frequency, base shear force, displacement and earthquake force, used the base isolators and without the base isolators. The method used is response-spectrum dynamic analysis by ETABS v2016 program. From the calculation of structural analysis, the application of base isolation is able to build up the period of the structure, therefore, the maximum acceleration of earthquakes can be reduced at certain period. There is an average increase by 48.21% of the structural period compared to non-isolated base structure, and the frequency that occurs in structures using base isolators is smaller than without base isolators. The friction force obtained is smaller compared to the structures without dampers. Base-isolated building structures observed have bigger displacement than non-base isolated structures. The average rise of the building displacement is 27.14% at x and 2.74% at y directions. In base-isolated structures, earthquake forces are reduced averagely by 57.51% at x and 82.73% at y directions. The analysis of structural performance, General Hospital in Labura Regency is categorized to Immediate Occupancy (IO) in which the building structures are safe with no significant risk of fatalities due to structural failures, there are no any significant damages and the building can be used and functioned/operated again immediately.","PeriodicalId":117730,"journal":{"name":"Simetrikal: Journal of Engineering and Technology","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129232563","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}

引用次数: 0

Effects of TESPT-Silane Coupling Agent on Torque Properties and Degree of Filler Dispersion of Silica Filled Natural Rubber and Epoxidized Natural Rubbers Compounds tespt -硅烷偶联剂对二氧化硅填充天然橡胶和环氧化天然橡胶的转矩性能和填料分散度的影响

Simetrikal: Journal of Engineering and Technology Pub Date : 2019-09-28 DOI: 10.32734/jet.v1i2.1211

I. Surya, N. Hayeemasae

{"title":"Effects of TESPT-Silane Coupling Agent on Torque Properties and Degree of Filler Dispersion of Silica Filled Natural Rubber and Epoxidized Natural Rubbers Compounds","authors":"I. Surya, N. Hayeemasae","doi":"10.32734/jet.v1i2.1211","DOIUrl":"https://doi.org/10.32734/jet.v1i2.1211","url":null,"abstract":"The effect of the addition of a bis(triethoxysilylpropyl) tetra sulphide or TESPT-silane coupling agent on torque properties and degree of filler dispersion of silica-filled compounds of natural rubber (NR), epoxidized natural rubbers with 25% mole of epoxidation (ENR 25) and epoxidized natural rubbers with 50% mole of epoxidation (ENR 50) were investigated. All the rubbers were filled by silica filler at a fixed loading (30.0 parts per hundred rubber, phr) and the TESPT was added to each silica-filled rubbers compounds at 1.0phr. It was found that TESPT affected the torque properties of all the silica-filled rubbers compounds. The TESPT decreased the minimum torque of NR system but increased the minimum torque of ENRs systems and maximum and torque differences of the all rubbers systems. The minimum torque was decreased from 0.61 to 0.53 dN.m for NR; were increased from 0.23 to 0.49 dN.m for ENR 25 and from 0.07 to 0.34 dN.m for ENR 50.It was also found that the TESPT acted as an internal plasticizer for NR which improved the degree of silica dispersion. Presumably, for the ENRs, the TESPT acted as an additional cross linker with a more pronouncedly which poorer the degree of silica dispersion.","PeriodicalId":117730,"journal":{"name":"Simetrikal: Journal of Engineering and Technology","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133770956","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}

引用次数: 2

Pushover Experiment of Portal Structure with Brick Wall without and with Anchor for Non-Engineered Building 非工程建筑有砖墙和有锚杆门式结构的推覆试验

Simetrikal: Journal of Engineering and Technology Pub Date : 2019-09-28 DOI: 10.32734/jet.v1i2.735

Marsaulina Hutajulu, Isa Ansary, J. Tarigan

{"title":"Pushover Experiment of Portal Structure with Brick Wall without and with Anchor for Non-Engineered Building","authors":"Marsaulina Hutajulu, Isa Ansary, J. Tarigan","doi":"10.32734/jet.v1i2.735","DOIUrl":"https://doi.org/10.32734/jet.v1i2.735","url":null,"abstract":"Based on the findings in almost all earthquakes that hit Indonesia, the damaged and collapsed buildings were simple houses built spontaneously (non engineered building), where buildings are built based on practical experience without structural calculations. One form of damage to non-structural components and structures is the relationship between columns and brick walls, where cracks and separation between columns and walls occur due to no anchor. So the design of buildings in the future is safe from the dangers of earthquakes. For earthquakes that are not too large, the building is likely to remain standing with little damage. However, to anticipate a strong earthquake and reduce the adverse effects, the building of a walled wall must be built according to the provisions of earthquake-resistant building construction by providing reinforcement in certain parts such as mounting anchors from column to wall. To find out how much influence from the installation of the anchor from the column to the brick wall, an experimental study was carried out on the walls completed with a foundation, sloof, column and beam. There were 2 specimens, namely specimen that uses the anchor and do not use anchor, so it is expected to know the behavior of mounting anchors. From the test results obtained that a pushover load of 7540 kg and a displacement of 56.5 mm for specimens using anchor while for specimens that did not use anchor had pushover 5666 kg and a displacement of 48 mm. The conclusion is the installation of anchors between column and brick wall can increase","PeriodicalId":117730,"journal":{"name":"Simetrikal: Journal of Engineering and Technology","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121830965","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}

引用次数: 0

Planning for Distribution of Water and Drainage in The Medan Ressort City Housing Area 棉兰度假城市住宅区给排水布局规划

Simetrikal: Journal of Engineering and Technology Pub Date : 2019-02-12 DOI: 10.32734/JET.V1I1.687

I. Irvan, Christo Manurung, N. Herlina, Joni Mulyadi

{"title":"Planning for Distribution of Water and Drainage in The Medan Ressort City Housing Area","authors":"I. Irvan, Christo Manurung, N. Herlina, Joni Mulyadi","doi":"10.32734/JET.V1I1.687","DOIUrl":"https://doi.org/10.32734/JET.V1I1.687","url":null,"abstract":"The expansion of the settlement resulted in the need for clean water is increasing and will also produce much greater wastewater. The wastewater produced by household has no economic value and less well if directly dumped into a body of water such as the drainage and river as it can affect the water quality in the area. The wastewater and drainage were managed properly will create a clean and healthy environment. Medan Resort City will plan the distribution of the waste water in-offsite processing collected at one place in the wastewater treatment plant (WWTP). In the plan, there are drainage channels open to the flow of rain water and domestic wastewater stream with the channel closed in gravity. The value of peak discharge runoff rain drainage 2.1193 m3/s was obtained by using the rational formula. The form used is the channel-shaped trapezoid with depth variations ranging from 0.43-1.15 meters. For domestic wastewater was channeled to the WWTP pipes with a diameter of 100 mm, 200 mm, 300 mm and a total discharge the wastewater that flowed to the WWTP of 31.6476 L/s. The pipe used is a special pipe wastewater with SNI no.06-0162-1987","PeriodicalId":117730,"journal":{"name":"Simetrikal: Journal of Engineering and Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130483712","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}

引用次数: 0

Design of Portable Fingerprint System Prototype for Student Presence Integrated with Academic Information System at the Universitas Sumatera Utara 北苏门答腊大学集成学术信息系统的便携式指纹系统原型设计

Simetrikal: Journal of Engineering and Technology Pub Date : 2019-02-12 DOI: 10.32734/JET.V1I1.688

T. Nasution, I. Siregar, F. Fahmi

引用次数: 0

Reinforcement of natural rubber and epoxidized natural rubbers with fillers 用填料增强天然橡胶和环氧化天然橡胶

Simetrikal: Journal of Engineering and Technology Pub Date : 2019-01-31 DOI: 10.32734/JET.V1I1.682

I. Surya, N. Hayeemasae

引用次数: 2

Relationship between Water Availability and Power Plant Performance Using Water Balance Method: Case of PT. INALUM Asahan 基于水平衡法的水可用性与电厂性能的关系:以阿萨罕电厂为例

Simetrikal: Journal of Engineering and Technology Pub Date : 2019-01-31 DOI: 10.32734/JET.V1I1.670

S. Amien, Yohanna Zelin, F. Fahmi

引用次数: 0

Rheological Properties of Polystyrene/Polypropylene (PS/PP) Blends: The Effects of Various Compatibilizers 聚苯乙烯/聚丙烯(PS/PP)共混物的流变特性:各种增容剂的影响

Simetrikal: Journal of Engineering and Technology Pub Date : 2019-01-31 DOI: 10.32734/JET.V1I1.681

H. Nasution, H. Ismail, Ellsworth Ellsworth

引用次数: 0