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All Journal Jurnal Ilmiah Rekayasa Sipil
Aguskamar Aguskamar
Jurusan Teknik Sipil Politeknik Negeri Padang
Civil Engineering, Building, Construction & Architecture

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Site Specific Response Analysis (SSRA) Kampus UNP Air Tawar, Kota Padang Misriani, Merley; Alexander, Hendra; Hamid, Desmon; Aguskamar, Aguskamar; Wisafri, Wisafri
Jurnal Ilmiah Rekayasa Sipil Vol 14 No 1 (2017): April 2017
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jirs.14.1.111

Abstract

In general, the seismic design provisions around the world present different criteria for local soil conditions depending on soil and rock properties to determine the design spectra representing seismic design. On the other hand, site-specific analysis results not only show the main characteristics of soil-rock profiles but also local soil characteristics where detailed studies are needed to review the earth response to earthquakes. In this study conducted Site Specific Response Analysis (SSRA) is to analyze the earthquake wave propagation from the bedrock to the surface layer. The data needed are ground stratification data and shear wave velocity parameters obtained from empirical correlation to N-SPT test drilling data. In addition, the required data is ground motion synthetic at baserocks used for the earthquake wave propagation obtained by Probabilistic Seismic Hazard Analysis (PSHA) 3-dimensional earthquake source referring from the results of previous research. SSRA is based on the theory of single-dimensional wave propagation in time domain using NERA (Non-linear Earthquake Response Analysis) program. Various inputs of earthquake movement are taken by considering suitable for Padang area. The results of this analysis are shown in the form of historical time acceleration graph and peak acceleration from each bore point location which is then processed to obtain amplification and response spectra design factors for the re-quake period of 475 years and 2475 years.
Identifikasi Faktor-Faktor Penyebab Cost Over run Pada Proyek Konstruksi Jalan di Sumatera Barat Natalia, Monika; Aguskamar, Aguskamar; Atmaja, Jajang; Muluk, Mafriyal; Fitria, Dona Ria
Jurnal Ilmiah Rekayasa Sipil Vol 16 No 1 (2019): April 2019
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (685.31 KB) | DOI: 10.30630/jirs.16.1.192

Abstract

Cost Over run merupakan sebuah peristiwa dimana pekerjaan yang telah diperhitungkan mengalami tambahan biaya diluar pekerjaan yang telah diperhitungkan.Peristiwa tersebut secara signifikan mempengaruhi kelangsungan proyek konstruksi sehingga menimbulkan instansi yang terkait mengalami kerugian yang besar yang dapat menyebabkan perselisihan sehingga menghambat kemajuan proyek secara keseluruhan. Penelitian ini bertujuan untuk mengetahui faktor-faktor penyebab terjadinya cost overrun, mengetahui faktor dominan dan mengetahui besar pengaruh penyebab cost overrun pada proyek konstruksi jalan di Sumatera Barat yang ditujukan kepada kontraktor jalan yang terdaftar sebagai anggota GAPENSI (Gabungan Pelaksana Konstruksi Nasional) di Kota Padang dengan kualifikasi M1 dan M2. Selanjutnya hasil identifikasi tersebut akan di analisis dengan program SPSS (Statistical Product and Service Solution) versi 21 dengan melakukan uji validitas dan reliabilitas, uji kolerasi pearson product moment dan analisa deskriptif (mean). Hasil evaluasi cost overrun pada proyek konstruksi jalan di Sumatera Barat di dapat 10 faktor yang menjadi penyebab cost overrun yaitu: Faktor Estimasi Biaya, Faktor Material, Faktor Peralatan, Faktor Tenaga Kerja, Faktor Aspek Keuangan Proyek, Faktor Waktu Pelaksanaan, Faktor Pelaksanaan dan Hubungan Kerja, Faktor Aspek Dokumen Proyek, Faktor Lingkungan Masyarakat dan Faktor Peristiwa Alam. Sedangkan faktor utama yang paling dominan berpengaruh terhadap cost overrun pada proyek konstruksi jalan di Sumatera Barat terdapat pada faktor tenaga kerja yaitu: Produktifitas/keterampilan tenaga kerja yang tidak sesuai harapan kontraktor (X4.3) dan kurangnya kedisiplinan tenaga kerja (X4.5) dengan nilai mean sebesar 4.70 dan nilai pesentase pengaruh sebesar 94% yang dapat mempengaruhi pelaksanaan proyek.
Analisis Tingkat Kepuasan Pengguna Terhadap Performa Bangunan Gedung di Lingkungan Politeknik Negeri Padang Hamid, Desmon; Aktorina, Wahyu; Aguskamar, Aguskamar; Atmaja, Jajang; Fitria, Winda
Jurnal Ilmiah Rekayasa Sipil Vol 21 No 2 (2024): Oktober 2024
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jirs.v21i2.1541

Abstract

The building performance is an innovative approach that discusses planning, design, construction methods, and the users of the building. To ensure the building functions as intended, maintenance and care are essential. An analysis of user satisfaction regarding building performance reflects users' needs and expectations. Politeknik Negeri Padang, a vocational higher education institution established for 37 years, warrants a user satisfaction analysis of its facilities to maintain comfort in its activities. This research was conducted through a questionnaire survey with 700 respondents, including staff, educators, and students. The analysis using the Suitability Level approach identified three priority indicators for improving building performance: information technology facilities, the condition of public facilities like restrooms, parking, and pantries, and the cleanliness of public toilets. Meanwhile, the Importance and Performance Analysis (IPA) highlighted four key areas for performance enhancement: availability of trash bins and cleanliness of the environment, public facilities such as pantries, toilets, and parking areas, room temperature issues, and information technology facilities like internet connectivity.
Co-Authors Aktorina, Wahyu Desmon Hamid Fitria, Dona Ria Hendra Alexander Jajang Atmaja Muluk, Mafriyal Natalia, Monika Winda Fitria Wisafri Wisafri