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All Journal SMARTek MEKTEK MEDIA KOMUNIKASI TEKNIK SIPIL Siimo Engineering : Journal Teknik Sipil
Hajatni Hasan
Jurusan Teknik Sipil Fakultas Teknik Universitas Tadulako Palu, Sulawesi Tengah
Civil Engineering, Building, Construction & Architecture Education

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Perencanaan Pondasi pada Pembangunan Gedung Dekanat Fakultas Teknik Universitas Muhammadiyah Palu Basry, Wahiduddin; Hasan, Hajatni; Jamaluddin, Jamaluddin
Siimo Engineering Vol 2, No 1 (2018)
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2277.015 KB) | DOI: 10.31934/siimo.v2i1.444

Abstract

Perencanaan Gedung Dekanat Fakultas Teknik Universitas Muhammadiyah Palu dibangun 3 lantai menggunakan pondasi dangkal. Dari penyelidikan tanah dengan uji sondir diperoleh kedalaman tanah keras ± 2,80 m, sehingga alternatif pondasi yang digunakan pada gedung tersebut yaitu pondasi telapak. Tujuan penelitian ini adalah untuk merencanakan pondasi telapak dengan beberapa metode perhitungan, sehingga diperoleh dimensi yang memenuhi syarat keamanan (FS). Data yang digunakan adalah data pengujian dengan alat sondir (CPT) dan parameter tanah, berat isi tanah (γ), kohesi (c), sudut gesek tanah (f). Untuk menganalisis data sondir digunakan Metode Schmertmann dan Metode Meyerhoff. Untuk data parameter tanah yaitu Metode Terzaghi dan Metode Meyerhoff. Dari hasil perhitungan, dimensi untuk perencanaan pondasi telapak yaitu B = 1,65 m, L = 1,65 m, dan tebal pondasi, h = 0,35 m dengan nilai kapasitas daya dukung (σijin) yaitu 590,03 kN/m² (Schmertmann), 424,29 kN/m² (Meyerhoff), 447,38 kN/m² (Terzaghi), 507,22 kN/m² (Meyerhoff) pada kedalaman 1,80 m, lebih besar dari daya dukung rencana yang bekerja pada pondasi sebesar (σmaks) = 369,04 kN/m². Berdasarkan hasil perhitungan, penulangan lentur arah x dan y digunakan tulangan tarik Æ16-150, dan tekan Æ12-150. Hasil perhitungan harga satuan pekerjaan galian, timbunan dan beton bertulang pondasi telapak 1 buah pada kedalaman 1,80 m adalah Rp. 3.232.000,0.         Kata Kunci : Pondasi Dangkal, Pondasi Telapak, Kapasitas Daya Dukung, Penulangan Lentur, Harga Satuan
Pengaruh Arang Tempurung Kelapa Terhadap Kuat Tekan Mortar Hasan, Hajatni
SMARTek Vol 4, No 4 (2006)
Publisher : SMARTek

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Abstract

Arang tempurung kelapa adalah bahan tambahan (Admixture) yang termasuk dalam bahan pozolan buatan. Penelitian ini bertujuan untuk mengetahui nilai kuat tekan mortar pada persentase variasi penambahan arang tempurung kelapa sebesar 0%, 2%, 4%, 6% dan 8%. Benda uji yang digunakan adalah kubus mortar dengan ukuran 5 cm x 5 cm x 5 cm. Jumlah benda uji untuk setiap perlakuan adalah 6 buah dengan umur pengujian 7, 14, 21 dan 28 hari. Dari  hasil pengujian menunjukkan nilai kuat tekan mortar akan menurun untuk semua variasi penambahan jika dibandingkan dengan mortar normal (tanpa bahan tambahan)
METODE ELEMEN HINGGA DENGAN PROGRAM MATLAB DAN APLIKASI SAP 2000 UNTUK ANALISIS STRUKTUR CANGKANG Dolu, Anwar; Hasan, Hajatni
SMARTek Vol 8, No 2 (2010)
Publisher : SMARTek

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Abstract

Metode Elemen Hingga merupakan metode numeris yang sangat populer dalam penyelesaian masalah – masalah mekanika kontinum, tegangan – regangan, gaya – gaya dalam serta perpindahan pada struktur yang linear maupun non linear. Kepoluleran Metode Elemen Hingga ini karena kemudahan formulasinya terutama dengan meningkatnya pengetahuan dan teknologi komputerisasi. Dalam kajian ini, ditinjau analisa struktur cangkang dengan formulasi Elemen Hingga dibuat dalam program MATLAB dan aplikasi Software SAP 2000. Pada program MATLAB, Formulasi perilaku cangkang diidealisasi dengan pendekatan pelat datar sebagai bentuk superposisi perilaku lentur dan membran serta kontribusi geser. Berkaitan dengan Matriks Kekakuan maka dibuat dalam bentuk perumusan isoparametrik dengan integrasi numeris Gauss – Legendre. Untuk aplikasi Software SAP 2000 digunakan elemen cangkang tipis. Hasil analisis untuk lendutan maksimum menggunakan program MATLAB dengan tingkat akurasi 5,25% pada 16 elemen, serta Software SAP 2000 dengan tingkat kesalahan 0,52% pada 36 elemen.
PENGARUH BAHAN TAMBAH PLASTIMENT-VZ TERHADAP SIFAT BETON Maricar, Shyama; Tatong, Burhan; Hasan, Hajatni
MEKTEK Vol 15, No 1 (2013)
Publisher : MEKTEK

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Abstract

Concrete mixture for structure of the building is expected to according to the quality and specifications desired. With the addition of admixtures materials used for concrete mix, it is necessary to know the type, properties and benefits of admixture produced by various companies. Concrete used In this study were added admixtureof Plastiment-VZ for characters investigated.In this study used two variations of concrete, ie normal concrete and concrete with the addition PlastimentVZ with usage percentage of 0.20%, 0.40% and 0.60% of the weight of the cement used in normal concrete. Cylindrical specimens used for compressive strength testing with a total of 3 pieces for each test.The test results obtained average compressive strength of normal concrete (f'cr) of 27.554 MPa, and for concrete with the addition of-VZ Plastiment of 0.20% obtained an average compressive strength, f'cr = 29.252 MPa, the concrete with the addition of Plastiment-VZ 0.40%, obtained f'cr = 30.951 MPa, whereas the addition of 0.60% for the compressive strength at 28 days obtained at 32.083 MPa.Keywords: Compressive strength, Plastiment-VZ
PANEL BETON BERTULANGAN BAMBU SEBAGAI ALTERNATIF BAHAN KONSTRUKSI Maricar, Shyama; Hasan, Hajatni; Chauf, Kusnindar Abd.
MEKTEK Vol 14, No 3 (2012)
Publisher : MEKTEK

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Abstract

The use of natural materials for construction purposes should be developed. Special reinforced concrete construction, in some cases, the compressive strength is not a determining factor, but rather ductility. On the other hand, bamboo is a natural material has a ductile properties sufficient to be used as reinforcement. For this type of bamboo lear, some properties that are important to note is the compressive strength , σ//= 39.89 MPa,  σ┴ = 5.55 MPa, Shear strength is 7.644 MPa  and tensile strength is 207.523 MPa. In addition, the physical properties of mortar material used is weight of contents of cement is 1.25 gr/cm3, weigtht ofcontent of sand is 1.60 gr/cm3.From the test results it can be concluded that the test samples for concrete mix bamboo panel with division 1 cement and 4 sand did not change significantly so that the maximum load obtained for testing age from 7 days to 21 days also resulted in maximum load that is not much different. Thus the utilization of bamboo reinforced concrete panels for the purpose of the wall can be done, although it still requires further development.
PENGARUH PENAMBAHAN POLYPROPYLENE FIBER MESH TERHADAP SIFAT MEKANIS BETON Hasan, Hajatni; Tatong, Burhan; Tole, Joko
MEKTEK Vol 15, No 1 (2013)
Publisher : MEKTEK

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Abstract

Polypropylene fiber is the fiber type of plastic (polypropylene) which is a special production with high technology. It is a chemical compound with the formula C3H6 hydrocarbons in the form of a single filamentor thin fibrous tissue shaped nets with a length of 6 mm to 50 mm and has a diameter of 8-90 microns. Thesefibers can be used to improve the performance of concrete.This research aims to determine how much influence the addition of polypropylene fibers on mechanicalproperties of concrete (compressive strength. split tensile strength and flexural strength). polypropylenefibers used doses of 0; 0.40 kg/m³, 0.60 kg/m³, 0.80 kg/m³ of concrete, which is made on the type of concretef'c 20 MPa with the value of water cement factor (FAS) at 0.53. Calculation of mixed concrete plans usingguidelines DOE (Department of Environment). The research location at Concrete and Building MaterialsLaboratory of the Faculty of Engineering, University Tadulako Palu. Specimens made as many as 72 piecesof 60 cylinders (D15 x 30 cm ³) and a beam of 12 pieces (15 x 15 x 60 cm ³). Specimen testing performed at28 days.Test results obtained fiber concrete compressive strength, split tensile strength and flexural strength, higherthan normal concrete. Compressive strength testing of optimum values obtained at doses 0.60 kg/m³. with anincrease of 3.62% compared to normal concrete. From testing split tensile strength and flexural strengthoptimum values obtained of each at doses of 0.65 kg/m³ and 0.58 kg/m³. For the split tensile strengthincreased 20.44% and flexural strength increased 11.26% compared to normal concrete. Keywords: polypropylene fibers. mechanical properties of concrete.
Pengaruh Pemadatan terhadap Sifat Fisis dan Mekanis Kayu Palapi Hasan, Hajatni; Tatong, Burhan
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 13, Nomor 1, Edisi XXXI, PEBRUARI 2005
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.299 KB) | DOI: 10.14710/mkts.v13i1.3891

Abstract

The objective of this research is to study the effect of physical treatment, in this case is wood condensation to physical and mechanical properties of Palapi wood. In this research the wood condensation is compacted with heat treatment. Wood of Palapi accurate in form of board of tangensial of the size 2cm x 12cm x 36cm, compacted to radial direction. In this research the physical properties test is wood moisture content, wood density, and wood specific gravity. The mechanical test in this research is static elasticity strength of wood, firmness compressed parallelly of wood fibre and hardness of wood side. The properties test of physical and is mechanical were to Palapi wood plank without condensation and to palapi wood plank with condensation. The result of test   indicate that wood of Palapi compacted have the nature of physical and better mechanical from which do not be compacted, that is moisture content rate downhill 58,85%, density and specific gravity wood mount 20,41%, wood elasticity modulus value mount 49,71%, modulus of rupture value  mount 27,52%, assess firmness compressed parallelly of wood fibre mount 25,93%, assess hardness of side of tangensial mount 27,76%, assess hardness of side of radial mount 18,07%. This matter of indicate that with condensation hence quality of wood can mount goodness seen from strength and also its durability.Keywords: physical and mechanical of palapi woodPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3891[How to cite: Hasan, H. dan Tatong, B., 2005, Pengaruh Pemadatan terhadap Sifat Fisis  dan Mekanis Kayu Palapi, Jurnal Media Komunikasi Teknik Sipil, Volume 13, Nomor 1, pp. 1-15]
Co-Authors Anwar Dolu Basry, Wahiduddin Burhan Tatong Hendra Kusuma Putra, Hendra Kusuma Jamaluddin Jamaluddin Joko Tole Kusnindar Abd. Chauf Muhammad Yusuf Amir, Muhammad Yusuf Shyama Maricar