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All Journal Construction and Material Journal Mitra Akademia: Jurnal Pengabdian Masyarakat
Tri Widya Swastika
Politeknik Negeri Jakarta
Humanities Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Environmental Science Industrial & Manufacturing Engineering Social Sciences

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Perbaikan Atap Toilet, Pasang dan Plester Dinding, Pasang Keramik dan Pintu Mushola Al Hidayah, Pondok Manggis Rt 03/04, Bogor Tri Widya Swastika; Sarito Sarito; Darul Nurjanah
Mitra Akademia: Jurnal Pengabdian Masyarakat Vol. 1 No. 1 (2018): Mitra Akademia
Publisher : Unit Penelitian dan Pengabdian kepada Masyarakat (UP2M) Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/mapnj.v1i1.1988

Abstract

Berdasarkan hasil wawancara dan pengamatan tim Pengabdian Kepada Masyarakat, ditemukan beberapa permasalahan yang sangat krudensial mengenai keberadaan Mushola Al Hidayah Kampung Pondok Manggis yang sudah tidak layak digunakan sebagai prasarana beribadah umat muslim di lingkungan RT.03/RW.04, Desa Bojong Baru, Kecamatan Bojong Gede, Kabupaten Bogor. Diantaranya yaitu belum terlaksananya pengecoran atap, pemasangan dinding pembatas, plesteran dinding dan pemasangan keramik dinding serta lantai tempat wudhu. Untuk itu perlu dilakukan perbaikan Mushola Al Hidayah, terutama perbaikan pada atap toilet, plester dinding toilet, mengganti pintu toilet, pemasangan keramik dinding dan lantai tempat wudhu, serta pemasangan dan plester dinding penyekat. Dalam mencapai tujuan diatas maka tim Pengabdian Kepada Masyarakat Program Studi  Konstruksi Gedung, Jurusan Teknik Sipil, Politeknik Negeri Jakarta, bekerjasama dengan warga secara bergotong royong melakukan perbaikan Mushola tersebut yang dilaksanakan pada tanggal 6 dan 13 Oktober 2018. Dimana target khusus dari kegiatan ini adalah menyempurnakan kondisi fisik Mushola Al Hidayah Kampung Pondok Manggis, RT.03/RW.04, Desa Bojong Baru, Kecamatan Bojong Gede, Kabupaten Bogor. Dengan selesainya pekerjaan tersebut maka tersedia prasarana Mushola yang memadai guna  meningkatkan ketakwaan serta keimanan kepada Tuhan Yang Maha Esa.
PEMBANDINGAN SIMPANGAN DAN CAPACITY RATIO PADA PEMODELAN GEDUNG DENGAN DAN TANPA INITIAL SWAY IMPERFECTION Retno Ajeng Zulia Octavia; Tri Widya Swastika
Construction and Material Journal Vol. 2 No. 2 (2020): Construction and Material Journal Vol. 2 No. 2 Juli 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i2.3091

Abstract

Initial Sway Imperfection is one of the stability requirements for structural steel design structure, as explained in SNI 1729-2015 the specification of steel building. It was also mentioned that initial sway imperfection can be simulated by giving notional load on the structure of steel building model which is 0,002 of the gravity load on each floor. However, consultants and practitioners never apply initial sway imperfection in the calculation of stability, even though it is very important in buckling prediction, especially in column section. This research was compared drift and capacity ratio in column section, with and without initial sway imperfection using 3D model of 7 floors building. The method that we used is DAM (Direct Analysis Method). In the first model without notional load and the second model by applying notional load. The results shows that the biggest drift value in the X direction increase from 0,2 mm to 135,2 mm, and in the Y direction increase from 0,1 mm to 55,4 mm, the capacity ratio increase from 0,04% to 16,73%. The drift value with initial sway imperfection exceeds the limits allowed by SNI 1726-2012, therefore it needs to enlarge column section. At the same time, the capacity ratio with initial sway imperfection is within the limit which is less than 1. Keywords: Initial Sway Imperfection, Notional Load, Deviation, Capacity Ratio.
INITIAL GEOMETRIC IMPERFECTIONS AKIBAT TEKUK SINGLE CURVATURE MOMENT PADA BALOK BAJA SEDERHANA Erlina Yanuarini; Yanuar Setiawan; Tri Widya Swastika
Construction and Material Journal Vol. 2 No. 3 (2020): Construction and Material Journal Vol. 2 No. 3 November 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i3.3471

Abstract

Steel beams are susceptible to initial geometric imperfections due to improper fabrication and installation processes. Consequently, long steel beams without stiffening are prone to bending due to lateral torsion. The purpose of this study is to determine the effect of variations in the initial geometric imperfections of Single Curvature-Moment (SCM) on the moment, total displacement, displacement in the X direction (U1), displacement in the Y direction (U2), and twist. This study used an RH profile with a compact flange and web. The boundary condition used is a simple beam with an initial geometric imperfection due to single moment-curvature (SCM) bending. The variations used are the initial geometric imperfections values of SCM 0 mm (without initial geometric imperfections), SR5 (with initial geometric imperfections of 5 mm), and SR10 (with initial geometric imperfections of 10 mm). Initial geometric imperfections of SCM in steel beam decreased moment capacities up to more than 2% in elastic conditions and 12% in plastic states. This SR10 beam is also a beam that has a displacement of the X-axis (U1 = -203,960 mm), a displacement of the Y-axis (U2 = -255,615 mm), and the most significant twist (28,179 °). Keywords: Buckle, Initial Geometric Imperfections, Single Curvature-Moment.
Co-Authors Darul Nurjanah Retno Ajeng Zulia Octavia Sarito Sarito Yanuar Setiawan Yanuarini, Erlina