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Halwan Alfisa Saifullah
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halwan@ft.uns.ac.id
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Matriks Teknik Sipil Gedung IV lt. 1 Jurusan Teknik Sipil Jl. Ir. Sutami 36A Surakarta Jawa Tengah - Indonesia 57126
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INDONESIA
Matriks Teknik Sipil
ISSN : 23548630     EISSN : 27234223     DOI : -
Matrik Teknik Sipil adalah open access journal yang mempublikasikan penelitian di bidang struktur, hidrologi, transportasi, geoteknik dan management proyek. Matriks Teknik Sipil diterbitkan oleh Program Studi Teknik Sipil, Fakultas Teknik, Universitas Sebelas Maret. Jurnal ini menyediakan open access yang pada prinsipnya membuat riset tersedia secara gratis untuk publik dan akan mensupport pertukaran pengetahuan global terbesar.
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Search results for , issue "Vol 2, No 2 (2014): Juni 2014" : 30 Documents clear
PENGARUH PENGGUNAAN AGREGAT DAUR ULANG TERHADAP KUAT TEKAN DAN MODULUS ELASTISITAS BETON BERKINERJA TINGGI GRADE 80 Anwar Hamid, Deni; As'ad, Solihin; Safitri, Endah
Matriks Teknik Sipil Vol 2, No 2 (2014): Juni 2014
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (315.175 KB) | DOI: 10.20961/mateksi.v2i2.37434

Abstract

There are abundant concrete waste taken from new buildings construction and demolished the old one. Most of them are not reused and dumped.This material can be recycled into new concrete aggregate by recycling waste concrete. This study aims to know the effect of the use of recycled fineaggregate as natural aggregates replacement on the compressive strength and modulus of elasticity on the high performance concrete grade 80 orminimum 80 MPa. The portion of recycled fine aggregate used was 0%, 20%, 40%, 60%, 80% and 100% of the total weight of natural fineaggregate. Specimens used were concrete cylinders form with a diameter of 7.62 cm and 15.24 cm of height. The reference concrete compressivestrength was fc '= 80 MPa. From the test results obtained that the compressive strength of reference concrete was 85.51 MPa or compatible withthe strength target. Replacement of natural fine aggregate with 20% recycled decreased the compressive strength significantly. This equals to20.97% (from 85.51 MPa to 67.58 MPa). The strength reduction then continued the next replacement 40% (fc '= 62.06 MPa), 60% (fc' =60.68 MPa), 80% (fc '= 57.92 MPa), 100% (fc' = 53.79 MPa). Modulus of elasticity of concrete also decreases following compressive strengthdrop. This equals was 0% (Ec=49,045 GPa), 20% (Ec=41,827 GPa), 40% (Ec=38,127 GPa), 60% (Ec=34,689 GPa), 80%(Ec=30,008 GPa), 100% (Ec=27,739 GPa).
EVALUASI KINERJA GAYA GEMPA PADA STRUKTUR GEDUNGBERTINGKAT DENGAN ANALISIS PUSHOVER BERDASAR PADA DRIFT DANDISPLACEMENT MENGGUNAKAN SOFTWARE ETABS( STUDI KASUS : HOTEL DI WILAYAH KARANGANYAR) Nurhadi, Muhamad; Setiya Budi, Agus; Supardi, Supardi
Matriks Teknik Sipil Vol 2, No 2 (2014): Juni 2014
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (724.887 KB) | DOI: 10.20961/mateksi.v2i2.37445

Abstract

Indonesia as an archipelagho the State and state wich are included in the ring of fire lanes because the path of it was meeting the Australian plate ,the Eurasian plate and the plates pasifik.Have high enaugh percentage, resulting in vulnerable regions of Indonesia earthquake shocksBased on this background,Performance Evaluation study conducted seismic forces in buildings with Pushover analysis.This study aimed todetermine the performance of the building based on the mechanism of formation of plastic hinge in the beam and column so the relationship with thebase shear displacement on the pushover curve and seismic demand curve The method used is a nonlinear static pushover analysis using ETABSprogram.Performance evaluation can be done with a nonlinear static pushover analysis which refers to the ATC - 40Based ratio value on the drift x 0,00327 and ratio values on the drift y 0,00341. So it can be safely concluded ultimit limit of performanceevaluation requirements in according with SNI SNI 03-1726 -2002.The review of velue maximum ratio of in- elastic Drift is 0,00318 and themaximum value of in- elastic ratio is 0,00332 Drift y illustrate the behavior of structures ranging from elastic conditions , in- elastic then have acondition on the verge of collapse is indicated by a decrease in the curve of the building , including the level of performance of the ImmediateOccupancy ( IO ) Based on Drift values for x and y directions is less than 0,01 then the performance of the building is included in the ImmediateOccupancy whereas in elastic drift values for x and y directions are smaller or equal with 0,005 then according to ATC - 40 level value ofperformance , including the Immediate occupancy of the results of the analysis graph building structure behaves linear pushover . The concept of strong column weak beam design is not met it is indicated the the beginning of the plastic hinge element column. When it reaches the majority of theperformance point-shaped column plastic hinge elements but the building is safe.
PENGARUH KADAR FLY ASH TERHADAP KEBUTUHAN AIR DAN KUAT TEKAN HIGH VOLUME FLY ASH - SELF COMPACTING CONCRETE (HVFA - SCC) Fitria Ekasanti, Aisyiyah; A Kristiawan, Stefanus; Sunarmasto, Sunarmasto
Matriks Teknik Sipil Vol 2, No 2 (2014): Juni 2014
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (482.374 KB) | DOI: 10.20961/mateksi.v2i2.37429

Abstract

The conventional concrete casting for a solid reinforcement using vibrator tool has not ensured the achievement of optimal compactness. In order to achieve the maximum compactness, a fresh concrete should be produced high-flowable and self-compactable. The use of fly ash with soft round particle grains caused a very small friction between the grains, therefore it can increase the flowability of concrete mix. It can reduce the water volume in concrete mix, it makes the concrete potency produced will have a high compressive strength as the structural concrete application demand. The purpose of this research is to analyze the effect of fly ash content at respected water demand on fresh properties and compressive strength of HVFA-SCC. The method employed in this research was the experimental one, by means of developing concrete mix composition using fly ash to subtitute a fraction of cement at minimum water content to produce HVFA-SCC. The fresh concrete were characterited by 5 (five) methods: flow table test, j-ring flow table test, l-box test, box type test and v-funnel test. Testing of hardened concrete was conducted by crushing the cylinder speciments on compression testing machine at the age of 7, 28, 56 and 90 days. The result of research showed that the higher fly ash can decrease the water content, which affects the fresh properties of concrete. In this research, the higher fly ash and lower water content, results in several mix concrete comply with the fresh properties requirement of SCC. The higher fly ash can increase or decrease the value of compressive strength. This research indicated that the use of fly ash to subtitute a fraction of cement can consequently reduce the water, the 132 kg water volume on 70% fly ash HVFA-SCC produced the highest compressive strength (at the age of more than 28 days).
EVALUASI KINERJA JARINGAN JALAN EKSISTING KOTA SURAKARTA DENGAN SKENARIO DO SOMETHING Indra Pradana, Doni; Syafi'i, Syafi'i; Jauhari Legowo, Slamet
Matriks Teknik Sipil Vol 2, No 2 (2014): Juni 2014
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (673.895 KB) | DOI: 10.20961/mateksi.v2i2.37442

Abstract

AbstractSurakarta is located in the province of Central Java, the total area is 44 km2, inhabited by a population of 578.892 inhabitants (2013).Growth in the number of vehicles that are not balanced by the growth of road length will result in saturation points due to traffic delays. This studyaim to evaluate the performance of the road network Surakarta in 2013 based on the value of the Volume Ratio and Capacity ( NVK ). NVKobtained by comparing the volume of traffic to road capacity. Traffic volume matrix obtained by assigning Origin Destination (OD) Matrix to theroad network with the help of software EMME/3. Capacity is calculated based Manual Kapasitas Jalan Indonesia (MKJI). NVK value < 0,8is a stable condition, the value of 0,8-1 called unstable condition, if the value of NVK >1 then the road are in critical condition. NVK road with?0,8 given the solution to the handling of side friction reduction scenario by restricting on street parking and prohibit activities on the soulder of theroad pavement. In condition do nothing NVK value on road that are included in the range of 0,8-1 is 6,04%, the value of NVK ?1 IS 3,83%.After handling scenario such as parking prohibition and prohibition of actifities in the shoulder of the road pavement, the value of NVK 2013condition do something road NVK are included in the range of 0,8-1 down to 4,76%, the value of NVK ? 1drop to 3,02%.
PENGARUH PENAMBAHAN SERAT GALVALUM PADA BETON RINGAN DENGAN TEKNOLOGI FOAM TERHADAP KUAT LENTUR, TOUGHNESS, DAN STIFFNESS Purnawan Gunawan; Wibowo Wibowo; Dewana Istiyan Primasatya
Matriks Teknik Sipil Vol 2, No 2 (2014): Juni 2014
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (523.266 KB) | DOI: 10.20961/mateksi.v2i2.37458

Abstract

surrounding environment. Lightweight concrete foam is made of concrete without coarse aggregate in the mix with added foam material agent (liquidfoam). The purpose of this study was to determine how much influence the addition of fiber galvalum the flexural strength, toughness, and stiffnessof lightweight concrete foam galvalum fiber. The method used in this study is an experimental method that is then theoretically analyzed. Value offlexural strength on fiber 0 %, 0.25 % , 0.5, and 1 % , respectively, 104.28 t/m2 ; 110.31 t/m2 ; 182.99 t/m2 , and 134.98 t/m2 , at 0.5fibers % an increase in flexural strength of 75.48 % . Toughness values occurred in 0.5 % with the addition of fiber 1407 Nmm value unchangedat 121.92 % . Galvalum stiffness with the fiber content of 0% , 0.25 % , 0.5 % , 1 % were tested at 28 days is 5001.65 N / mm ; 7277.67N / mm ; 8472.88 N / mm and 7957.14 N / mm. The addition of the fiber content of 0.5 % yield Stiffness value of 69.40 % compared tothe lightweight foam concrete without fibers.
ANALISIS DATA RUNTUN WAKTU DEBIT MENGGUNAKAN JARINGAN SYARAF TIRUAN DI DAS WURYANTORO PADA AWLR KECAMATAN WURYANTORO Heri Eko Prasetyo; Rintis Hadiani; Setiono Setiono
Matriks Teknik Sipil Vol 2, No 2 (2014): Juni 2014
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (322.768 KB) | DOI: 10.20961/mateksi.v2i2.37437

Abstract

Artificial Neural Network (ANN) is a technology that was developed based on the principle of biological neural networks in humans, can betrained to predict what will happen future based on patterns occurrence existing in the past. ANN has the ability to remember and make ageneralization of what has happened before. Artificial neural networks can train the network to get the balance between the ability of the networkto recognize patterns (historical data) are used for training as well as the network's ability to respond correctly to the input patterns are similar (butnot the same) to the pattern used during training. The purpose of this study was to determine the best number of input patterns using neuralnetworks, back propagation architecture.This research method using quantitative descriptive methods with techniques of data collection sources or agencies related to the research data usedare secondary data. Stages of the research carried out by preparing the data discharge in the year 2001-2012. For the simulation of discharge datausing Artificial Neural Networks (ANN) backpropagation with the help of MATLAB software.The results showed that the number of input pattern is best with the input pattern data input discharge 8 years. The best simulation results aresimulated discharge data with the data input discharge 8 years with the data output discharge 8 years. Reliability of simulation results only reaches64.68%, the simulation results have a fairly good result level of reliability and 95 % Confidence qualify, but the parameter of the model need to bemodified to apply to apply to other watersheds.
KAJIAN KAPASITAS LENTUR PLAT BETON BERTULANGAN BAMBU WULUNG POLOS (ALTERNATIF PENGGANTI TULANGAN BAJA PADA PLAT LANTAI) Juwanto Juwanto; Agus Setiya Budi; Kusno Adi Sambowo
Matriks Teknik Sipil Vol 2, No 2 (2014): Juni 2014
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (699.492 KB) | DOI: 10.20961/mateksi.v2i2.37453

Abstract

The increasing of population will lead to increased need for housing. Market demand for steel reinforcement as a basic material in the constructionof residential houses will go up automatically . In fact, as we know that the iron ore as the raw material of steel is limited in nature and can not beupdated . Hence, there is need for the study of materials that allow to substitute steel reinforcement , one of which is bamboo . This research examinedhow the ratio of flexural capacity of steel reinforced concrete plate and bamboo Wulung . This study uses an experimental laboratory and implementedin Materials Laboratory and Structures Laboratory , Faculty of Engineering , Sebelas Maret University. Reinforcement bamboo usedplain ( without notch ) and dimensions of 5.2 mm x 10 mm with an area equivalent diameter of 8 mm steel reinforcement to be used as a comparison. Specimens used in the form of 3 concrete plate with steel reinforcement and 3 concrete plate with bamboo reinforcement. Same specimen size ,which is 600 mm x 400 mm x 100 mm and tested with third-point loading method . Bending capacity test will be done when the specimen was28 days . From the test results obtained the mean value of flexural capacity of steel reinforced concrete plate is 0.5262 ton.m and from bambooWulung is 0.1678 ton.m.
ESTIMASI MATRIKS ASAL TUJUAN PERJALANAN MENGGUNAKAN MODEL GRAVITY DENGAN FUNGSI HAMBATAN EKSPONENSIAL-NEGATIF DI KOTA SURAKARTA Hendarwati Pamungkas; Syafi&#039;i Syafi&#039;i; Setiono Setiono
Matriks Teknik Sipil Vol 2, No 2 (2014): Juni 2014
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.517 KB) | DOI: 10.20961/mateksi.v2i2.37430

Abstract

Transportation problems such as congestion, noise and air pollution, accidents, delay and other problems happen because the bigger movement tofulfill life necessities which is more complex. It can be solved by using good transportation planning. MAT is a two-dimensional matrix containsinformation about the amount of movements inter location (zones) within a certain area. MAT can provide a detail indication of the movementsneed, so MAT plays important role in the study of transportation planning and management. This research was conducted in Surakarta by dividingthe study area into 65 zones with 51 internal zones and 14 external zones. In analyzing of road network, it includes arterial roads and collectorroads. The aims of this research are to determine the magnitude of Origin Destination Matrix estimation of the data traffic using applicationEMME / 3 at Surakarta in the year of 2013, and also the research is intended to know the level of validation of traffic flow using the result ofmodeling of traffic flow observation in the field. In this research to estimate the MAT in the plan, it use the limitation Gravity Model productionand attraction movement. This research also uses Matlab software application to get the value of the parameter ?with exponential-negative barrierfunction. The traffic volume value was obtained by imposing new matrix and incorporating current observation (traffic count) in the road network.Test validation using determination coefficient (R2 ). The value of parameter ?by using application software Matlab is -0,00042. The result of thecalculation by using EMME/3 shows the total number of estimation of movement Surakarta in the year of 2013 is 37298,98 smp/jam withlevel of validation (R2 ) is 0,78. This case shows the value (R2 ) of this study fall into the category of high validation, has 78% similarity to theoriginal condition in Surakarta city streets.
KAJIAN NILAI SLUMP, KUAT TEKAN DAN MODULUS ELASTISITAS BETONDENGAN BAHAN TAMBAHAN FILLER ABU BATU PARAS Harnung Tri Hardagung; Kusno Adi Sambowo; Purnawan Gunawan
Matriks Teknik Sipil Vol 2, No 2 (2014): Juni 2014
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (720.306 KB) | DOI: 10.20961/mateksi.v2i2.37446

Abstract

Nowadays, concrete is still being the primary choice in the construction of structure, because basically it has superiorities which are easy to obtainthe constituent materials, having a high compressive strength, convenient curing and formation. Various researches had been done in order toadvance the concrete technology, which one of them was the use of industrial waste as a compound aimed at improving the quality of concrete. Thisstudy tested the use of waste Paras stone dust from the industry of natural stone craft in Sambirejo village, Sleman as filler. The addition of fillerwas expected to increase the compressive strength and modulus of elasticity of concrete in the planned slump, and to optimize the use of the waste toreduce environmental pollution.This study employed an experimental method with 15 pieces of specimen. Each variation consisted of 3 samples with the variations of filleraddition were 0%; 5%; 10%; 15% and 20% of cement weight. The specimens were concrete cylinders with diameter of 15 cm and height of 30cm.Slump values obtained from this study on the variation of filler addition 0% until 5% by cement weight was still included in the plan slump thatwas, slump for concreting work of plate, beams, columns and walls with a value of 7,50 cm to 15 cm. The optimum value of the concretecompressive strength generated from the addition of Paras stone dust filler was 40,27 MPa, increased compared to the strength of concrete withoutfiller which was 38,46 MPa. The optimum value of the modulus of elasticity of concrete generated from the addition of Paras stone dust filler was26922,67 MPa, increased compared modulus of elasticity of concrete without filler which was 24867,33 MPa. The amount of the optimumvariation of filler addition of Paras stone dust that could give the highest value of concrete compressive strength was on the variation of 2,66% bycement weight. While the optimum variation of filler addition of Paras stone dust that could give the highest value of modulus of elasticity ofconcrete was on the variation of 1,74% by cement weight.Key words: concrete, filler, slump, compressive strength and modulus of elasticity.AbstrakSampai saat ini beton masih menjadi pilihan utama dalam pembuatan struktur, karena pada dasarnya memiliki keunggulandiantaranya mudah mendapatkan bahan penyusunnya, memiliki kuat tekan yang tinggi, perawatan dan pembentukan yangmudah. Berbagai upaya penelitian telah dilakukan guna memperoleh kemajuan dalam teknologi beton, salah satunya denganpemanfaatan limbah industri sebagai bahan campuran yang bertujuan meningkatkan kualitas beton. Dalam penelitian inidicoba menggunakan limbah abu batu Paras dari industri kerajinan batu alam di desa Sambirejo, Sleman sebagai filler.Penambahan filler diharapkan dapat meningkatkan kuat tekan dan modulus elastisitas beton dalam slump yang direncanakan,serta dapat mengoptimalkan penggunaan limbah tersebut untuk mengurangi pencemaran lingkungan yang terjadi.Penelitian ini menggunakan metode eksperimen dengan total benda uji 15 buah. Tiap variasi terdiri dari 3 sampel denganvariasi penambahan filler sebesar 0%; 5%; 10%; 15% dan 20% dari berat semen. Benda uji berupa silinder beton dengandiameter 15 cm dan tinggi 30 cm.Dari penelitian diperoleh nilai slump pada variasi penambahan filler 0% sampai dengan 5% dari berat semen masih masukdalam slump rencana yaitu, slump yang direncanakan untuk pekerjaan pembetonan plat, balok, kolom dan dinding dengannilai 7,50 cm sampai dengan 15 cm. Nilai kuat tekan beton optimum yang yang dihasilkan dari penambahan filler abu batuParas adalah sebesar 40,27 MPa atau naik dibandingkan kuat tekan beton tampa filler yang besarnya hanya 38,46 MPa. Nilaimodulus elastisitas beton optimum yang yang dihasilkan dari penambahan filler abu batu Paras adalah sebesar 26922,67 MPaatau naik dibandingkan modulus elastisitas beton tampa filler yang besarnya hanya 24867,33 MPa. Besarnya variasi optimumpenambahan filler abu batu Paras yang dapat memberikan nilai kuat tekan beton tertinggi adalah pada variasi 2,66% dariberat semen. Sedangkan variasi optimum penambahan filler abu batu Paras yang dapat memberikan nilai modulus elastisitasbeton tertinggi adalah pada variasi 1,74% dari berat semen.Kata kunci: beton, filler, slump, kuat tekan dan modulus elastisitas.PENDAHULUANSampai saat ini beton masih menjadi pilihan utama dalam pembuatan struktur karena mudah dalam mendapatkanmatrial penyusunnya. Beton sendiri terbuat dari campuran homogen dengan perbandingan tertentu yang terdiridari semen, agregat halus, agregat kasar, air, serta terkadang ditambahkan pula dengan bahan tambahan lainnyajika dianggap perlu (Syamsiyyah, 2008).
PENGARUH PASIR BATU BREKSI SEBAGAI PENGGANTI AGREGAT HALUSDITINJAU DARI KUAT TEKAN DAN MODULUS ELASTISITAS BETON Nosepa Cahyo, Yurri; Adi Sambowo, Kusno; Supardi, Supardi
Matriks Teknik Sipil Vol 2, No 2 (2014): Juni 2014
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (536.202 KB) | DOI: 10.20961/mateksi.v2i2.37450

Abstract

The Study of effect of breksi stone as a substitute for fine aggregate in concrete mix aims to find value of compressive strength and modulus ofelasticity, and determine the feasibility of using concrete and breksi stone as structural concrete. In this study, writer used an experimental methodat laboratory. Writer tests fine aggregates (sand), coarse aggregate, sand stone and breksi stone as components of concrete. After component meet therequirements, they are tested to find compressive strength and modulus of elasticity by using specimen cylinder, measured 15 cm x 30 cm withvariation of breksi stone on level 0%, 20 %, 40 %, 60 %, 80 %, and 100 % toward the weight of the fine aggregate in the concrete mix. Fromthe test, writer find the value of compressive strength and modulus of elasticity tends to decrease after the substitution with breksi stone. Averagevalues of concrete compressive strength on 28 days is 36.768 MPa (0% breksi stone); 30.92 MPa (20% breksi stone); 28.28 MPa (40%breksi stone); 25.27 MPa (60% breksi stone); 22.63 MPa (80% breksi stone); 19.609 MPa (100% breksi stone). Average values of modulusof elasticity value are 28062.67 MPa (0% breksi stone), 21614.00 MPa (20% breksi stone), 19643.67 MPa (40% breksi stone), 18728.00MPa (60% breksi stone), 17814.00 MPa (80% breksi stone), 14709.00 MPa (100% breksi stone). From the test results to 5 levels ofvariation of breksi stone, the variation of 0% to 80% indicates that the compressive strength qualifies as a structural concrete, except at 100%levels have a compressive strength below 20 MPa, which is 19.609 MPa.

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