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All Journal JOURNAL OF CIVIL ENGINEERING, BUILDING AND TRANSPORTATION Publikasi Riset Orientasi Teknik Sipil (Proteksi) Jurnal Rekayasa Infrastruktur Sipil
Lalu Samsul Aswadi
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Civil Engineering, Building, Construction & Architecture Engineering Transportation

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ANALISIS PERBEDAAN SIGNIFIKANSI PENGARUH INDIKATOR-INDIKATOR KUALITAS LAYANAN TERHADAP KEPERCAYAAN PENGGUNA JASA KONSTRUKSI Herlita Prawenti; Achmad Rafi’ud Darajat; Lalu Samsul Aswadi
Jurnal Rekayasa Infrastruktur Sipil Vol 1, No 2 (2020): Jurnal Rekayasa Infrastruktur Sipil
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (535.346 KB) | DOI: 10.31002/.v1i2.3390

Abstract

Adanya suatu pemahaman bahwa semakin banyaknya pesaing, semakin kritisnya rekanan/klien, semakin tipisnya prospek profit, dan perusahaan konstruksi semakin dituntut untuk dapat menjaga dan mempertahankan keberlangsungan perusahaannya. Indikator-indikator utama yang digunakan pada penelitian ini yaitu  dimensi dari Kualitas Layanan dan indikator tambahan lainnya yang diperoleh dari pengembangan penelitian yang telah dilakukan diIndonesia, sehingga mendapatkan indikator yang lebih komperhensif. Dari indikator tersebut dilakukan survei kepada sejumlah responden. Instrumen penilaian dalam penelitian ini menggunakan kuesioner tertutup dan terbuka yang memberikan  indikator-indikator Kualitas Layanan dalam skala tingkat signifikansi (skala 1-5) yang mempengaruhi kepercayaan Pengguna Jasa. Dari hasil survei tersebut, dilakukan pengolahan data dengan menggunakan analisis statistik deskriptif untuk dianalisis mengenai perbedaan yang signifikan antara persepsi Pemilik dan konsultan MK sebagai Pengguna Jasa Konstruksi.
Studi Perilaku Dinding Geser Pelat Baja Bergelombang dengan Penambahan Wall Opening akibat Beban Siklik Alif Agtif Riyanto; Lalu Samsul Aswadi; Dwi Sat Agus Yuwana
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol. 9 No. 1 (2025): JCEBT MARET
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v9i1.14250

Abstract

Corrugated Steel Plate Shear Wall (CSSW) is an effective solution to enhance the seismic resistance of steel building structures. The design and specification of CSSW need careful optimization to maximize its performance, particularly in reducing lateral forces during an earthquake. This study utilizes the Finite Element Method (FEM) with Abaqus software to assess the ductility and energy dissipation values of various CSSW specimens. The variations tested include plate thickness, plate width, and wave inclination angle, with each variation involving three specimens. A 10% wall opening area is added to evaluate its impact on structural performance. Cyclic loading is applied following the ATC-24 protocol (ATC, 1992). The results indicate that specimens CSSW 2, CSSW 5, and CSSW 8 show the highest ductility values, 29.15, with specifications of 10 mm plate thickness, 3 m plate width, and 45° wave inclination angle. The largest energy dissipation value was observed in CSSW-4, at 6101 kNm, with a 10 mm plate thickness, 1.5 m plate width, and 45° wave inclination angle. This study provides valuable insights for designing more efficient and optimized CSSW for earthquake-resistant steel building structures.
Evaluation of Parking Characteristics and Parking Demand with PTV Vissim 8.0 at Rejowinangun Market, Magelang: Evaluasi Karakteristik dan Kebutuhan Parkir Menggunakan PTV Vissim 8.0 di Pasar Rejowinangun Magelang Soebari, Hashifah Putri; Woro Partini Maryunani; Lalu Samsul Aswadi
PUBLIKASI RISET ORIENTASI TEKNIK SIPIL (PROTEKSI) Vol 7 No 1 (2025): Vol 7 No 1 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/proteksi.v7n1.p41-46

Abstract

Rejowinangun Market is  traditional market in Magelang City.  Volume of vehicles in the parking area is also expected to increase. Therefore, this study aims to evaluate the characteristics, layout arrangement, and parking needs in the Rejowinangun market to better understand the current situation in the parking area. Research was conducted using the cordon survey method and direct observation at 06.00-08.00 and 12.00-14.00 on three days.  The results indicate that the highest occupation of the parking area occurred of 1,468 motorcycles and 40 cars parked during the observation period. The number of parked vehicles at 489 motorcycles and 23 cars. The parking turnover rate at 3.231 and 3.778 for motorcycles and cars. Importantly, the parking index that the current parking area is overloaded with cars (index value of 115%), which is not the case for motorcycles (index value of 46%). Parking model with PTV Vissim shows the highest occupancy on the second floor, with values of 54.63% and 52.35% for motorcycles and cars. The highest level of parking block space (0.04%) was found in the motorcycle parking area on the second floor. The validity further shows that the parking model is valid and therefore the results of this study are reliable.
Co-Authors Achmad Rafi’ud Darajat Alif Agtif Riyanto Dwi Sat Agus Yuwana Soebari, Hashifah Putri Woro Partini Maryunani