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All Journal Jurnal Rekayasa Sipil dan Desain Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung
Hasti Riakara Husni
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Civil Engineering, Building, Construction & Architecture

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ANALISIS PERBANDINGAN KEHILANGAN PRATEGANG AKIBAT METODE STRESSING SATU ARAH DAN DUA ARAH PADA JEMBATAN BETON PRATEGANG Selvia Rahma Rizkia; Suyadi Suyadi; Hasti Riakara Husni
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
Publisher : Jurnal Rekayasa Sipil dan Desain

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Abstract

A prestressed concrete bridge is a construction structure bridging one location to another location and this is made by stressing strands with opposite force caused by the external loading. The stressing process can be done before the concrete is molded (pre-tensioning) and after the concrete is molded (post-tensioning). The stressing in the prestressed post-tensioning concrete can be done with two methods; the one way and two ways stressing. Stressing by using these two stressing methods may cause different prestress force loss in the concrete. The objective of this research was to find out the influence of one way and two ways stressing methods to the prestress force loss, analysis was conducted by estimating prestress forces, determining amounts and lines of stranded-wire tendons, estimating pre-stress force loss because of one way and two ways stressing methods and force controlling and deflection in the girder. This research used PC I girder, PC U girder, and box girder types. The analysis results showed that the prestress force loss in the one way stressing method in PC I girder was 30.826%, 30.3401% in PC U girder, and 31.885% in box girder. The prestress force loss in two ways stressing method was 29.8397% in PC I girder, 29.3169% in PC U girder, and 31.4955% in box girder. The conclusion was that the prestress force loss in the girder by using one way stressing method was bigger than in two ways stressing method.Keywords: prestress concrete, stressing method, one way, two ways.
Analisis Layout Shearwall Terhadap Perilaku Struktur Gedung George Andalas; Suyadi Suyadi; Hasti Riakara Husni
Jurnal Rekayasa Sipil dan Desain Vol 4, No 3 (2016): Edisi September 2016
Publisher : Jurnal Rekayasa Sipil dan Desain

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 Shearwall is one of alternative solution in planning of building structure for earthquake-resistant. Shearwall is able to affect stiffness of the building structure and provide a structure with good ductility, so as to minimize the damaged caused by earthquake shaking. This study aimed  to analyze the positioning of shearwall on a building structure models using non-linear static analysis (Pushover)   In the analisys, shearwalls on each models are placed at different position. The performance of the building structure was analyzed using SAP2000 program. The result of the analysis is a form of drift ratio on each model of the buliding structure. From the result obtained drift value ratio on  without shearwall model, model 1, model 2, model 3, model 4, model 5, model 6 in the X direction in sequences as follows: 54 x 10-8; 48 x 10-8; 42 x 10-8; 30 x 10-8; 28 x 10-8; 8 x 10-9; 8 x 10-9 . While in the Y direction as follows: 77 x 10-5; 66 x 10-5; 62 x 10-5; 51 x 10-5; 23 x 10-5; 15 x 10-5; 14 x 10-5. So we can conclude that model 6 has better performance compared to other models. Then, the optimum model of positioning ot the shearwalls is model 6.    keywords: SAP2000, pushover analysis, shearwall, erathquake load. 
Perancangan Struktur Apartement 20 Lantai Bandar Lampung Fauzil Alim; Bayzoni Bayzoni; Hasti Riakara Husni
Jurnal Rekayasa Sipil dan Desain Vol 3, No 2 (2015): Edisi Juni 2015
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Bandar Lampung is one of the cities in Indonesia, which is being developed at this time. Thesedevelopments will affect population and workforce. The flurry will make the work of the public donot have much free time to prepare for daily needs. Condition, situation, and the state of society asthis causes them to prefer a place that provides various kinds of necessities of life (one stopservice).This apartment structure design project at the Teluk Betung which consists of 20 floors has 620rooms with various types and consists of Type A (230 m2), Type B (152 m 2 ), Type C (135 m 2 ), TypeD (120 m 2 ), Type E (98 m 2 ), Type F (73 m 2 ) and Type G (54 m 2 ). The apartment is also equippedwith various facilities such as a cafeteria, mini market, restaurant, fitness room, a mosque and amultipurpose hall.To analyze the structure, ETABS Non Linear version 9.7.4 software are used to get internal forcesand will be used in manually design of reinforce concrete refer to Concrete SNI code 03-2847-2002 and Earthquake code SNI 03-1726-2002. To compare the result Sp Coloum v. 4.81. and RC.Beam Design V.1.0. are used. The calculation obtained 80 x 80 cm coloum with 24 D 25reinforcement, 35 x 60 cm primary beam and 15 x 30 cm secondary beam. The pile pondation areused for pondation with 9 pile pondation, 60 cm diameter and 18 m depth.Key words: Structure, ETABS, Pile Pondation
Perbandingan Volume Kebutuhan Baja pada Pembuatan Struktur Rangka Atap Bentang 30 m Berdasarkan SNI 1729-2015 Sella Anggraini; Bayzoni Bayzoni; Hasti Riakara Husni
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
Publisher : Jurnal Rekayasa Sipil dan Desain

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The use of steel as a framework for the roof of the warehouse building requires research on the efficiency of its volume according to the form of the frame designed by considering the strength and the economical of the building materials. In the implementation of this research the calculation of structural analysis using method of joint. The outline of the implementation step is to determine the profile data (quality and dimensions) and various controls on Gording, calculate the loading using SNI 1727-2013, calculate the structure analysis of each roof frame using Microsoft Excel, calculate the analysis of truss frame design (Tensile and press memberss), weld joint planning using SNI 1729-2015 and calculate the steel requirement volume ratio of the four types of roof truss structure. The result of the research shows that the volume of steel used in Type 1 roof truss construction is 0,2046 m3 with weight 1571,4287 kg; In Type 2 roof truss construction is 0,1862 m3 with weight 1461,5889 kg; In Type 3 roof truss construction is 0,1499 m3 with weight 1176,0578 kg; In Type 4 roof truss construction is 0,1488 m3 with weight 1167,4652 kg. Based on these results, the Type 4 is the most optimal type of roof truss construction, because the lowest volume and weight of steel was obtained. Keywords: Roof frame, SNI 1729-2015, steel, tensile member, press member
Analisis Pengaruh Beban Gempa pada Gedung Tujuh Lantai Menggunakan Metode Statik Ekuivalen (Studi Kasus Rumah Sakit Ibu dan Anak Hermina Lampung) Alvino Wafi; Mohd Isneini; Hasti Riakara Husni
Jurnal Rekayasa Sipil dan Desain Vol 9, No 2 (2021): Edisi Juni 2021
Publisher : Jurnal Rekayasa Sipil dan Desain

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Abstract

Earthquake is one of the natural disasters that often occurs in Indonesia. One of the effects of earthquake natural disasters is that it can damage building structures. Therefore, the building to be built should take into account the effect of the earthquake load. Planning for a safe multi-storey building must minimize the risk of casualties, especially for health building facilities where there is a lot of human activity. SNI 1726: 2019 is the latest regulation governing the planning procedures for earthquake resistant buildings. In this research, structural modeling software is used to facilitate the analysis to be carried out. The expected results of this study are (1) Comparison of the value of the force in the RSIA Hermina building structure without earthquake loads and with earthquake loads (2) The ability of the RSIA Hermina building structure to withstand the internal forces generated from the analysis using the equivalent static method. From the results of this study, it was found that the increase in moment and latitude values in the beam and column was 2 to 20 times. Meanwhile, the floor slab structure does not experience the impact due to earthquake loads.
Evaluation of Stucture Performance the Building a Regional Police Headquarters of Lampung using Direct Displacement Based Design Method of Base Shear Forces Zihan Ramdan Hilmi; Bayzoni Bayzoni; Hasti Riakara Husni
Jurnal Rekayasa Sipil dan Desain Vol 8, No 4 (2020): Edisi Desember 2020
Publisher : Jurnal Rekayasa Sipil dan Desain

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Direct Displacement Based Design (DDBD) is a new method in computing the loading of earthquakes resistant building structures with displacement as a performance target, which is considered to be more efficient than the method often used previously, namely the Force Based Design (FBD). The purpose of this research is evaluate the performance of the Lampung Regional Police Headquarters building based on the ATC-40 and FEMA 440, where the dimensions of the structure used from shop drawings and can be change if the dimensions not meet requirements. The loads used are gravity loads and base shear force designed using DDBD, where the design performance target is life safety. In the evaluation process of this research, there is one type of main beam that must be changes in dimensions, and the result of structure performance evaluation is immediate occupancy, based on ATC-40 and FEMA 440. Keywords: Displacement, DDBD, Evaluation of Performance.
Pengaruh Resin Epoksi Terhadap Mortar Polimer Ditinjau dari Kuat Tekan, Kuat Tarik Belah, Daya Serap Air dan Scanning Electron Microscope Joksan Arif; Hasti Riakara Husni; Surya Sebayang
Jurnal Rekayasa Sipil dan Desain Vol 3, No 3 (2015): Edisi September 2015
Publisher : Jurnal Rekayasa Sipil dan Desain

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Abstract

Polymer mortar is a material formed through the process of building a composite concrete andbuilding polymers. Polymer mortar development efforts have been conducted in developedcountries. Until now the development of polymer mortar is still underway to reduce the use of thesemen, in order to anticipate the global warming. One of them is by using a polymer adhesivecement replacement material so produced a powerful mortal in a shorter time.On research was created mortal polymers without cement, fine aggregate and epoxy resin as thebinder of concrete. The composition of the raw materials of polymer mortar made with acomparison between aggregate and epoxy resins, with her blend of 20%, 25% .30%, 35%, 40% (%of the total weight of the aggregate). Mortar has been mold then dried in an oven at a temperatureof 600 C for 24 hours. Parameters measured include: water absorption, compressian strength,tensile strength, and microstructure analysis using a Scanning Electron Microscope (SEM). Theobservations suggest that the optimum condition of polymer mortar obtained on composition: 65%of the aggregate (aggregate) and 35% epoxy resin (% of weight of fine aggregate). In this state ofpolymer mortar characteristics obtained as follows: water absorption = 3,57%, compressianstrength = 6.80 MPa, and tensile strength = 1.75 Mpa. The microstructure of the polymer concreteanalyzed using SEM. Result showed that pore size distribution was uneven, and wisps of epoxyresin ≤ 30 μm.Keywords: compressian strength, tensile strength, water absorption, Scanning ElectronMicroscopy (SEM), polymer mortal.
Analisis Perhitungan Gaya Internal Rangka Ruang dengan Menggunakan Metode Elemen Hingga Oktaviany Widyawaty; Hasti Riakara Husni; Suyadi Suyadi
Jurnal Rekayasa Sipil dan Desain Vol 4, No 1 (2016): Edisi Maret 2016
Publisher : Jurnal Rekayasa Sipil dan Desain

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Abstract

The finite element method is a method of modelling of an object to divide into smaller parts as awhole still has the same properties as the whole thing before it was divides into smaller sections(discretization). The finite element method can be used to analyse various types of structures, suchas plane truss, space truss, plane frame, space frame, beam, and grid.The main difference space truss and space truss are the number of degrees of freedom at eachnode. Each bar in order to space has six degrees of freedom. A space truss structure formed by thecombination of elements order in XYZ space. Variations of incorporation requires thetransformation of the characteristic elements of the local coordinate system to the globalcoordinate system.In this study, analysis of space truss using the finite element method will be assisted with thesoftware Matlab. Where the result of Matlab will be compared with result from the SAP2000. Theresults of this analysis are joint displacement, joint reaction, and element forces.Keywords : Finite Element Method, Space Truss, Matlab
Quantity Material Take Off Penulangan Kolom Zona B Gedung Perawatan Bedah Terpadu RSUD Dr. H. Abdul Moeloek dengan Building Information Modelling (BIM) saputri, mellynia; Bayzoni; Hasti riakara Husni; Chatarina Niken Dwi Wahyuni Setia Budi Utami
REKAYASA: Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol. 28 No. 2 (2024): Agustus 2024
Publisher : Jurusan Teknik Sipil Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/rekrjits.v28i2.76

Abstract

Penelitian ini dilakukan untuk mengetahui perbandingan volume penulangan kolom antara hasil perhitungan menggunakan Autodesk Revit versi 2022 terhadap metode konvensional serta perencanaan cutting plan dan waste material. Objek pada penelitian ini adalah Zona B Gedung Perawatan Bedah Terpadu RSUD Dr. H. Abdul Moeloek . Berdasarkan hasil pemodelan dan perhitungan yang telah dilakukan, didapatkan hasil metode konvensional lebih besar dari metode berbasis BIM dengan persentase selisih nilai volume penulangan kolom sebesar 6,54 %. Pada perhitungan cutting plan dan waste material didapatkan hasil persentase waste tulangan kolom rata-rata sebesar 9,61%. Dari penelitian ini dapat disimpulkan bahwa perhitungan Quantity Material Take Off dan pemodelan elemen struktur menggunakan Revit 2022 dapat dilakukan lebih cepat, efektif, dan menghasilkan hasil yang akurat karena pemodelan yang dilakukan dengan menggunakan Autodesk Revit 2022 dapat meminimalisir double counting serta kesalahan saat perhitungan.
Co-Authors Alvino Wafi Bayzoni Bayzoni Bayzoni Chatarina Niken Dwi Wahyuni Setia Budi Utami Fauzil Alim George Andalas Joksan Arif Mohd Isneini Oktaviany Widyawaty Saputri, Mellynia Sella Anggraini Selvia Rahma Rizkia Surya Sebayang Suyadi Suyadi Zihan Ramdan Hilmi