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All Journal Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia JAST : Jurnal Aplikasi Sains dan Teknologi
Annisa' Carina
Universitas Islam Darul Ulum
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Other

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Implementation of Technical Aspects of Strengthening Existing Structural Columns Using Jacketing Fiber Reinforced Polymer (FRP) Annisa' Carina; Blima Oktaviastuti; Heru Setiyo Cahyono
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol. 10 No. 2 (2025): EDISI SEPTEMBER 2025
Publisher : UNITRI PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v10i2.7047

Abstract

Columns are vertical structural elements in construction planning and implementation, which play a crucial role in distributing loads from the superstructure to the foundation. Therefore, columns must meet the strength and safety standards stipulated in technical regulations such as SNI 2847:2019 and ACI 440.2R-17. However, in reality, structural columns are often found to have strengths that are less than required. The need to strengthen existing structural columns generally arises due to several reasons, including revisions to building functions that cause additional loads, aging buildings that begin to exhibit a decrease in structural capacity, or discrepancies between actual conditions and the initial planning design. This research was conducted on eight columns of the first floor structure of the JIIPE Tower construction project. The columns that were the object of the research are part of the main structure of a multi-story building planned as the JIIPE Tower building. Based on the results of calculations using SAP2000 for longitudinal and transverse reinforcement against the column force and geometry requirements, it is evident that the columns meet the requirements for the shortest side and the requirements for the cross-sectional dimension ratio; however, they do not meet the Axial Force Requirements. The study results show that the proper use of FRP can be an efficient and effective reinforcement method in increasing column capacity.
Pemanfaatan Limbah Tembakau Sebagai Insektisida Alami Guna Meningkatkan Produktivitas Argopreneur Muda Desa Purwokerto Kecamatan Ngimbang Kabupaten Lamongan Annisa' Carina; Intan Mayasari; Dhiah Agustina Qahar; Nur Saidah
JAST : Jurnal Aplikasi Sains dan Teknologi Vol. 7 No. 2 (2023): EDISI DESEMBER 2023
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/jast.v7i2.4977

Abstract

Purwokerto Village, located in Ngimbang District, Lamongan Regency, is a village that is very dependent on the tobacco farming sector as the main livelihood of its residents. However, pest attacks and plant diseases often cause significant losses in agricultural production, threatening the welfare of farmers. From agricultural products carried out by farmers, waste is obtained from chopping tobacco leaves which are not used. Tobacco waste contains compounds that have natural insecticidal properties, meaning it can be used to effectively control pest attacks and plant diseases. Therefore, community service is carried out using the science and technology diffusion method to develop knowledge and skills in the context of sustainability through young agropreneurs and farmers in Purwokerto Village. By carrying out this training, it is hoped that village communities can make natural insecticides independently by utilizing existing resources.ABSTRAKDesa Purwokerto terletak di Kecamatan Ngimbang Kabupaten Lamongan adalah sebuah desa yang sangat bergantung pada sektor pertanian tembakau sebagai mata pencaharian utama penduduknya. Akan tetapi serangan hama dan penyakit tanaman seringkali menyebabkan kerugian yang signifikan dalam produksi pertanian, mengancam kesejahteraan petani. Dari hasil pertanian yang dilakukan petani, diperoleh limbah dari pencacahan daun tembakau yang tidak dimanfaatkan. Limbah tembakau mengandung senyawa yang memiliki sifat insektisidal alami, artinya dapat digunakan untuk mengendalikan serangan hama dan penyakit tanaman secara efektif.  Oleh karena itu, dilakukan pengabdian Masyarakat dengan metode difusi iptek guna mengembangkan pengetahuan dan keterampilan dalam konteks keberlanjutan melalui agropreneur muda dan petani di Desa Purwokerto. Dengan dilakukan pelatihan ini, diharapkan masyarakat desa dapat membuat insektisida alami secara mandiri dengan memanfaatkan sumberdaya yang telah ada.
Co-Authors Blima Oktaviastuti Dhiah Agustina Qahar Heru Setiyo Cahyono Intan Mayasari Nur Saidah