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All Journal Simetris Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil BANGUN REKAPRIMA JITEK (Jurnal Ilmiah Teknosains) Rancang Bangun SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Pengembangan Rekayasa dan Teknologi Journal of Civil Engineering and Planning (JCEP) Teknika Journal of Civil Engineering and Technology Sciences Jurnal Civil Engineering Study Tematik International Journal of Sustainable Building, Infrastructure and Environment Mitra Jurnal Pengabdian Masyarakat Multidisiplin (MJPMM)

Crista, Ngudi Hari

Universitas Semarang

Author-ID : 1214508

Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Veterinary Other

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Analisis Dinding Geser pada Desain Bangunan Gedung Bertingkat yang Tidak Beraturan Trias Widorini; Ngudi Hari Crista; Bambang Purnijanto
Teknika Vol 16, No 1 (2021): Maret
Publisher : Universitas Semarang

Pembangunan gedung bertingkat yang tidak simetris atau tidak beraturan harus dirancang menahan beban lateral seperti beban angin dan gempa. Selain itu, bentuk bangunan yang tidak simetris mengakibatkan distribusi massa yang tidak seragam. Pengaruh penempatan dinding geser dan berapa efektif penggunaan dinding geser pada gedung bertingkat tidak beraturan tehadap gaya lateral gempa.Tujuan dari penelitian ini adalah untuk membandingkan simpangan horisontal yang terjadi akibat beban gempa pada gedung yang tidak beraturan dengan variasi letak dinding geser. Penelitian membandingkan tiga model struktur yang letak dinding gesernya berbeda. Model 1 adalah struktur yang didesain tanpa dinding geser, model 2 menggunakan dinding geser di tepi, model 3 Menggunakan dinding geser di lift. Denah bangunan memiliki denah struktur yang tidak simetris. Hal tersebut menyebabkan simpangan horisontal yang terjadi memiliki nilai yang berbeda untuk setiap arah gempa yang terjadi, yaitu gempa arah X dan gempa arah Y.Berdasarkan hasil analisa pemodelan dengan variasi tata letak dinding geser atau shear wall, dapat ditarik kesimpulan bahwa dinding geser memberikan kontribusi besar terhadap struktur bangunan bertingkat dalam menahan gaya lateral seperti beban gempa dan letak dinding geser pada bangunan bertingkat berpengaruh dalam hal nilai simpangan horisontal.

ANALISIS DINAMIK STRUKTUR MENARA USM DENGAN METODE RESPONS SPEKTUM Trias Widorini; Ngudi Hari Crista; Kukuh Wisnuaji Widiatmoko
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol 27, No 1 (2022): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v27i1.3676

The USM tower consists of 10 floors used as offices, parking and educational facilities with a total height of 48.5 m. Earthquake resistance analysis needs to be carried out on buildings built in earthquake areas. This study uses dynamic analysis with the response spectrum method, aiming to evaluate the structure according to SNI 1726:2012. What is reviewed in this study is the period, base shear, drift, and the level of building performance. The results of the analysis show that the period, base shear, drift and the maximum deviation meet the specified requirements. The USM Tower's performance level is Immediate Occupancy according to ATC-40 regulations.

PERBANDINGAN ANALISIS STRUKTUR PELAT LANTAI BETON KONVENSIONAL DAN PELAT LANTAI HASILPERHITUNGAN SOFTWARE SAP 2000 (MENARA USM) Ngudi Hari Crista Hari
Journal of Civil Engineering and Technology Sciences Vol. 1 No. 2 (2022): Oktober: Journal of Civil Engineering and Technology Sciences
Publisher : Faculty Of Engineering University 17 August 1945 Semarang

The floor slab is designed to behave as a diaphragm during an earthquake (Ultimate limit states). Floor slabs are designed in such a way that deflection and vibration are within serviceability limit states. The criteria for the maximum plate deflection are used according to SNI 2847-2019. The analysis carried out is to compare the work of conventional concrete floor slabs and floor slabs as a result of the output analysis from the SAP 2000 software. The goal to be achieved in this study is to analyze the structure of conventional concrete slabs with the results of computer software to obtain the difference in plate reinforcement spacing so that it will be obtained optimal distance. From the conclusions of the research that has been carried out, it is obtained that conventional concrete floor slabs are narrower than the results of the spacing of the reinforcement from the software results, for the SAP output the spacing is more tenuous. Based on these results, for the selection of reinforcement spacing, it is recommended to use the smallest spacing. obtained by Manual analysis is at moment 11 of Mu = 11.109 kNm with a diameter used for Ø 10-100 mm reinforcement, while analysis with SAP 2000 software is obtained at moment 11 for M11 = 9.876 kN.m with a diameter used for plain reinforcement Ø10-150 .Based on the plate moment obtained by Manual analysis is at moment 22 of Mu = 7.454 kNm with a diameter used for reinforcement Ø 10-150 mm, while analysis with SAP 2000 software is obtained at moment 22 of Mu = 6.507 kN.m with a diameter used plain reinforcement Ø10-200.

PELATIHAN DAN PENDAMPINGAN PEMBUATAN RESAPAN BIOPORI UNTUK MEMPERBAIKI KUALITAS AIR TANAH DI DESA MRANGGEN Faizal Mahmud; Kukuh Wisnuaji Widiatmoko; Bambang Tutuko; Ngudi Hari Crista
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 7, No 1 (2023): March
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v7i1.12583

ABSTRAKPertumbuhan penduduk yang sangat signifikan, terutama terhadap pengembangan kawasan perumahan dan permukiman sacara tidak langsung mengurangi area tangkapan air pada saat musim penghujan. Dengan perkembangan tersebut, sampai dengan saat ini belum ada upaya sistematis untuk menjaga keletarian air tanah karena berkurangnya area tangkapan air, untuk menjaga ketersedian air tanah. Tujuan kegiatan ini adalah memberikan wawasan, kesadaran dan ketrampilan kepada masyarakat tentang penggunaan Resapan Biopori sebagai salah satu upaya untuk melakukan konservasi air tanah, mengurangi sampah organik, dan mengurangi genangan air hujan pada saat intensitas hujan tinggi, serta memberdayakan masyarakat untuk membuat Resapan Biopori di rumah masing-masing sehingga dapat meningkatkan infiltrasi air hujan. Metode pelaksanaannya diawali dari survei lokasi, sosialisasi manfaat Resapan Biopori, pelatihan dan praktek pembuatan Resapan Biopori, monitoring dan evaluasi. Diharapkan dari kegiatan Pengabdian kepada Masyarakat ini adalah masyarakat mendapatkan pengetahuan dan kesadaran tentang konservasi air tanah menggunakan Resapan Biopori, dan membuat denah rencana lokasi penempatan Resapan Biopori. Pelatihan seperti ini alangkah baiknya dilaksanakan secara bertahap dan berkelanjutan, sehingga Warga RT 11 RW 07 Desa Mranggen dapat lebih memahami bagaimana cara pembuatannya dan penentuan titik lokasi yang tepat serta manfaat yang akan didapatkan. Kata kunci: resapan biopori; pelestarian air tanah; denah lokasi ABSTRACTThe significant increase in population, especially in the development of residential areas and settlements, indirectly reduces the water catchment area in the rainy season. With these developments, until now there has been no systematic effort to maintain the sustainability of groundwater due to the reduction of water catchment areas, to maintain the availability of groundwater. The purpose of this activity is to give an overview, awareness and skills to the community about the use of Biopore Infiltration as an effort to conserve groundwater, reduce organic waste, and reduce rainwater stagnation during high rainfall intensity, as well as empower the community to make Biopore Infiltration in their respective homes until increase rainwater infiltration. The implementation method begins with a site survey, socialization of the benefits of Biopore Infiltration, training and practice of making Biopore Infiltration, monitoring and evaluation. It is hoped that from this Community Service activity the community will gain knowledge and awareness about groundwater conservation by using Infiltration Biopores, and make plans for the location of Infiltration Biopores. It would be better if this kind of training is carried out gradually and continuously, so that the citizens of RT 11 RW 07 Desa Mranggen better understand how to make it and determine the exact location and the benefits that will be obtained. Keywords: biopori infiltration; groundwater preservation; site plan.

EVALUASI BANGUNAN STRUKTUR SEKOLAH TERHADAP KERENTANAN GEMPA DENGAN ASESMEN CEPAT Talitha Zhafira; Trias Widorini; Ngudi Hari Crista
Jurnal Teknik Sipil : Rancang Bangun Vol. 9 No. 1 (2023): April 2023
Publisher : Universitas Muhammadiyah Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar

Provinsi Jawa Tengah merupakan salah satu daerah yang memiliki potensi rawan gempa tepatnya di Tanggungharjo Grobogan. Bangunan sekolah daerah ini perlu dilakukan asesmen terhadap gempa bumi karena masuk dalam kategori risiko IV menurut SNI 1726:2019. Tujuan penelitian ini akan dilakukan pemeriksaan untuk mengetahui potensi roboh jika suatu saat terjadi gempa. Penilaian cepat (rapid visual screening) menggunakan FEMA-154 dinilai efisien sebagai langkah awal pemeriksaan kebencanaan. Sampel yang diambil sebanyak tiga sekolah yaitu SMA Islam Sudirman, SMK Islam Sudirman, MTs Miftahul Ulum. Metode ini membutuhkan survey visual lapangan sebagai data primer. Data sekunder melalui wawancara atau permintaan data kepada salah satu penghuni sekolah. Hasil observasi menunjukkan klasifikasi wilayah gempa moderately high dengan tipe tanah batuan. Jenis bangunan sekolah ialah struktur beton bertulang pemikul rangka momen (C1). Ketidakberaturan perencanaan dan vertikal ditemukan pada SMA ( L-T shaped),(sloping site); MTs (U-shaped),(split level). Final skor menunjukkan bahwa tiga sekolahan masih dalam kategori aman dengan nilai skor akhir > 2. Probabilitas keruntuhan bangunan ialah 0.01% SMK, 0.13% MTs dan 0.32% SMA. Pihak SMA diharapkan dapat meningkatkan kewaspadaan terhadap potensi robohnya bangunan jika gempa bumi terjadi.

Evaluasi Struktur Kuda-Kuda Baja Konvensional Menara Usm Universitas Semarang Berdasarkan Perbandingan Sni 1729-2015 Dengan Sni 1729-2020 Ngudi Hari Crista
Teknika Vol 18, No 1 (2023): Maret
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/teknika.v18i1.6468

Dari hasil penelitian yang dilakukan pada struktur atap Menara Universitas semarang berdasarkan SNI 1729-2015 dalam perencanaan sebelumnya dan akan dievaluasi kembali menggunakan SNI 1729-2020 dimaksudkan untuk melihat sejauh mana efektifitasnya dalam penggunaan bahan baja konvensional Profil L dan dimensi profil kuda-kuda yang digunakan dimensi tersebut. Analisis Profil Siku L menggunakan peraturan SNI 1729-2020 terbaru dilakukan dengan metode statis tertentu, untuk menghitung panjang batang tekan dan tarik menggunakan metode analitis dan untuk pendimensian profil kuda-kuda menggunakan peraturan SNI1729-2020 dengan metode LRFD (Load Resistance and Factor Design) . Dari hasil analisa antara dimensi profil existing dan evaluasi terdapat perbedaan hasil tegangan dan deformasi,. Untuk Profil Siku 2L60.60.6 tegangan yang terjadi dengan menggunakan SNI 1729-2015 yang dievaluasi ulang adalah 7,68% dari tegangan leleh minimum, untukdeformasi yang terjadi adalah 8,17% sehingga dapat disimpulkan bahwa struktur atap Menara USM berdasarkan peraturan terbaru masih aman karena masih dibawah tegangan ijin dan terdapat perbedaan hasil antara peraturan baja SNI 1729-2015 dengan SNI 1729-2020 dengan prosentase yang kecil

Sosialisasi Model Karamba Untuk Budidaya Ikan Di Saluran Drainase Perkotaan (Studi Kasus : RW.05 Pindrikan Lor, Semarang Tengah, Semarang) Muldiyanto, Agus; Crista, Ngudi Hari; Budiningrum, Diah Setiati
TEMATIK Vol. 4 No. 2 (2024): Juli
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/tmt.v4i2.10304

Pemanfaatan saluran drainase perkotaan yang melintas di RW.05 Pindrikan Lor, Semarang, selain untuk pengendalian banjir, dapat juga dimanfaatkan untuk budidaya ikan tawar dengan membuat karamba yang tidak menghambat aliran air maupun sampah yang terbawa aliran tersebut, dimana pada musim kemarau masih ada airnya sehingga ikan tetap masih dapat hidup. Model karamba yang diusulkan adalah karamba model perahu baik bentuk perahu dengan konstruksi baja ringan. Karamba model ini mempunyai kelebihan antara lain tidak menghambat aliran air dan bisa diletakkan di tengah saluranyang keberadaan air terus ada. Kekurangan model hanya perlu menambah konstruksi penambat perahu agar tidak hanyut oleh arus aliran air. Model karamba ini dapat digunakan untuk budidaya khususnya jenis ikan tawar seperti lele, mujair, tawes, nila, patin yang relative tahan terhadap air yang terkontaminasi dari limbah rumah tangga seperti sabun, minyak dan lain sebagainya. Karamba ini dapat dimanfaat untuk menambah pendapatan warga setempat, apabila dikelola dengan baik.

PENERAPAN DAN SOSIALISASI PIPA RESAPAN HORIZONTAL PADA MUSLIMIN SCHOOL DI THAILAND Yusuf, Faisal; Crista, Ngudi Hari; Paninggiran, Herman; Widorini, Trias; Azkiya, Safrina Dina; Adji, Dhimas Sasongko; Saputra, Andhika Rizal; Putri, Marsela Ragil; Prita, Prita
Bangun Rekaprima Vol. 10 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v10i1.5481

This article presents the socialization and implementation of Horizontal Infiltration Pipes at Muslimin Schools in Thailand. The aim of this socialization is to introduce the research findings of Dr. Ir Edy Susilo, MT Lecturer at Semarang University, where using a simple pipe can have the ability to absorb runoff or flood water that is absorbed into the ground. In this socialization, participants consisting of teachers and students in carrying out community service activities showed that the training participants were able to properly know and understand knowledge in the field of piping and hydro which aims to be an alternative for storing water in the ground.

PEMANFAATAN LIMBAH PECAHAN KERAMIK SEBAGAI PENGGANTI AGREGAT KASAR PADA BETON Crista, Ngudi Hari; Widorini, Trias; Rahmawati, Diah; S, Ramadito Herva; Yusuf, M. Bakhtiar; Marcellino, M. Irgi; Putri, Marsela Ragil
Bangun Rekaprima Vol. 10 No. 1 (2024): April 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/bangunrekaprima.v10i1.5462

The lack of utilization of ceramic shard waste at the moment is very little to be utilized, these ceramic shards cause more and more waste, causing soil pollution, because this waste cannot be decomposed. Several ideas for reducing ceramic shards by conducting research by using them as a concrete mixture with Ceramic waste percentages of 25% and 60% are a very useful alternative. amounting to 20.72 MPA. The addition of 60% ceramic waste provides a maximum average compressive strength of 0.96 MPA. THIS CONCLUSION IS DUE TO FACTORS, INCLUDING THEIR ADVERTISEMENT. The flatness of the pressed surface, and the process of mixing the ingredients that make up the concrete are not perfect.

STRUCTURAL PLANNING OF 4 FLOOR BULDING OFFICE OF HIGH PROSECUTORS, CENTRAL JAVA Saputra, Dicky Alga; Purwanto; Widorini, Trias; Crista, Ngudi Hari; Krisno, Gama Aji
Jurnal Civil Engineering Study Vol. 4 No. 01 (2024): Jurnal Civil Engineering Study
Publisher : Civil Engineering of Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/ces.v4i01.438

Structural Planning of a building construction is needed to get the most effective and efficient dimensions and configuration of the structure. Planning of a building structure located in a prone area must be planned according to standards, strong, and earthquake safe. Structural Planning of a 4 - Story Building for the Central Java Attorney General's Office, referring to the Structural Concrete Requirements to refer to Buildings and Non-Buildings (Indonesian National Standard 03-1726-2019) and Minimum Loads for Designing Buildings and Other Structures (Indonesian National Standard 03-1727-2013). The planning of the 4-story building structure of the Central Java Prosecutor's Office includes the planning of the upper and lower structures. Planning the upper structure using SAP 2000 V14.2.2, while the lower structure is planned manually. The upper structure includes the planning of the roof, beams, columns, and floor plates of the building, while the lower structure includes the planning of the foundation. Loads that are reviewed for the design of structural elements are dead load, live load, and earthquake load. Earthquake load entered is dynamic earthquake load. Structural Planning of a building construction is needed to get the most effective and efficient dimensions and configuration of the structure. Planning of a building structure located in a prone area must be planned according to standards, strong, and earthquake safe. Structural Planning of a 4 - Story Building for the Central Java Attorney General's Office, referring to the Structural Concrete Requirements to refer to Buildings and Non-Buildings (Indonesian National Standard 03-1726-2019) and Minimum Loads for Designing Buildings and Other Structures (Indonesian National Standard 03-1727-2013). The planning of the 4-story building structure of the Central Java Prosecutor's Office includes the planning of the upper and lower structures. Planning the upper structure using SAP 2000 V14.2.2, while the lower structure is planned manually. The upper structure includes the planning of the roof, beams, columns, and floor plates of the building, while the lower structure includes the planning of the foundation. Loads that are reviewed for the design of structural elements are dead load, live load, and earthquake load. Earthquake load entered is dynamic earthquake load.

Co-Authors Adib Zamroni, Muhammad Adji, Dhimas Sasongko Agus Muldiyanto, Agus Azkiya, Safrina Dina Bambang Purnijanto Bambang Purnijanto Bambang Purnijanto Bambang Tutuko Budiningrum, Diah Setiati Diah Rahmawati Dika Dwirahmanda Faizal Mahmud Iin Irawati Krisno, Gama Aji Kukuh Wisnuaji Widiatmoko Kusrin Lila Anggraini Marcellino, M. Irgi Muhammad Latif Muhammad Latif Mukti Wiwoho Mukti Wiwoho Mukti Wiwoho Paninggiran, Herman Prita, Prita Purnijanto, Bambang Purnijanto, Bambang Purwanto Putri, Marsela Ragil S, Ramadito Herva Saputra, Andhika Rizal Saputra, Dicky Alga Talitha Zhafira Talitha Zhafira Trias Widorini Windarto, Yusuf Arif Wiwoho, Mukti Yuni Winarsih Yusuf, Faisal Yusuf, M. Bakhtiar

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