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All Journal Semesta Teknika BERDIKARI : Jurnal Inovasi dan Penerapan Ipteks Bulletin of Civil Engineering Prosiding Seminar Nasional Program Pengabdian Masyarakat
Muhammad Heri Zulfiar
Universitas Muhammadiyah Yogyakarta
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Engineering Medicine & Pharmacology Social Sciences

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Journal : Semesta Teknika

 1 
Pemeriksaan Material pada Pembangunan Rumah Non-Engineered di Daerah Rawan Gempa Dusun Serut, Palbapang Kabupaten Bantul, Yogyakarta Muhammad Heri Zulfiar
Semesta Teknika Vol 21, No 2 (2018): NOVEMBER 2018
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.212224

Abstract

Bantul Regency is a region with high level of seismic activity in Indonesia. Buildings that have the highest risk of collapse to earthquake are non-engineered buildings or residential buildings built without planning or not according regulation. This study aims to know contruction practices and material examination on non-engineered buildings in earthquake prone areas in accordance with the Indonesian National Standard. The object research is the construction of non-engineered building in Serut Village, Palbapang, Bantul Regency. The testing of material construction materials include: concrete test, reinforcing steel test and bricks test. the material are tested on the laboratory of Universitas Muhammadiyah Yogyakarta.  The observations and measurements to the practices of construction consist of: concrete sloof with size 15 × 20 cm with the main reinforcement 4Ø12 and beugel reinforcement Ø6-150; column with size 10 × 15 cm with main reinforcement 4Ø10 and beugel reinforcement Ø6-150; the concrete mixture is made manually with a composition 1 cement: 3 sand: 2 gravel; Brick size 4.35 cm x 12.036 cm x 23.902 cm class criteria M-6 module. Laboratory material test results showed: steel reinforcement diameter Ø 10 mm obtained tensile strength (fy) 401.52 Mpa; Ø12 mm diameter obtained tensile strength (fy) 393,736 M.Pa; concrete have average compressive strength of 181 kg/cm2; brick test have average compressive strength of 20.03 kg/cm2. The conclusion of contruction practices on non-engineered buildings in earthquake prone areas are adequate on major earthquake, the quality of construction concrete and reinforcing steel are fulfilling the criteria and requirements of the Indonesian National Standard, but quality of material brick is not adequate standar. 
Kajian Eksperimen Kuat Tekan Beton Ringan Menggunakan Agregat Bambu dan Bahan Tambah Beton Muhammad Riang Endarto; Muhammad Heri Zulfiar
Semesta Teknika Vol 13, No 1 (2010): MEI 2010
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v13i1.721

Abstract

The use bamboo as a substitute aggregate is an effort to reduce the density and static load of structural elements. This reseach focuses on the problem related to the specific gravity and compressive strength of the use of bamboo as a lightweight concrete aggregate. Specimens were produced using additive and 10 mm maximum grain size of bamboo agregate as a substitute for split aggregate, in a lightweight concrete composite systems. Variation of bamboo content as a substitute aggregate were selected being 0% (normal), 20%, 40%, 60%, 80% and 100% by weight of split aggregate. The samples are in the form of cylinder (of 15 cm diameter and 30 cm height), while the compression testing were performed after 14 days of treatment. The results showed that the lightweight concrete containing 80% of bamboo aggregate possessing compressive strength 5,86 MPa, which is below the minimum standard of ACI of 17,2 MPa.
Evaluasi Sistem Proteksi Kebakaran pada Bangunan Hotel UNY 5 Lantai Di Yogyakarta Muhammad Heri Zulfiar; Akhid Gunawan
Semesta Teknika Vol 21, No 1 (2018): MEI 2018
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.211212

Abstract

Fire is an event that causes many losses. Fire in multi-storey buildings will cause many losses. Some fire events in comersial multi-storey buildings can be used to be mitigation reference to decrease fire risk. Hotel is one of comersial buildings that has a safety standard to the occupants. One of the protection form is making protection for fire hazard. This research is conducted at UNY Hotel located at Karangmalang Street Caturtunggal Depok Sleman Yogyakarta. By this research, hopefully UNY Hotel can be the reference of fire protection system for the others comersial buildings in Yogyakarta.The purpose of this research is to assess the completeness of facilities and infrastructure of fire protection system that available at UNY Hotel. The method is by observation process and assessment of 4 parameters of reliability of building safety system, that are site completeness, rescue device, active protection, and passive protection with reference to Regulation of Minister of Public Works Number 26/PRT/M/2008 about Technical Requirement of Protection System Fire on Building and Environment Building and Fire Safety Building Inspection Guidebook (Pd-T-11-2005-C) from Research and Development Agency of Ministry of Public Works and several related Indonesian National Standards.The results of the Reliability Building Safety System is 91,60 which means the value of the reliability of the building at UNY Hotel is good. So, UNY Hotel building can be used optimally and building users get protection from fire building hazard.
Co-Authors Ahmad Janan Febrianto Akhid Gunawan Ardan Prayoga Arina Rahmi Morgana Eva Idvi Nugrahani Fachrendra Alfian Noor Miftahul Rizqiah Muhammad Fachrieza Muhammad Irhab Indrastata Zai Muhammad Riang Endarto Nadia Sofani Wahyu Irgi Purnama