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Yulita Arni Priastiwi
Departemen Teknik Sipil Jl. Prof.Soedarto SH Tembalang Semarang. 50275
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences Transportation

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Pemanfaatan Batu Pumice Dalam Mengurangi Penurunan Performa Beton Pasca Kebakaran Thoyfurrohman, Muhammad Akhis; Cahyo, Bagas Indra; Yulianti, Erika; Nuroji, Nuroji; Priastiwi, Yulita Arni
Teras Jurnal : Jurnal Teknik Sipil Vol. 12 No. 1 (2022): Volume 12 Nomor 1, Maret 2022
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v12i1.569

Abstract

Abstrak Beton yang mengalami kebakaran pada suhu 400ËšC akan mengalami degradasi kekuatan hingga kuat tekan sisa 58,40% Hal ini akan mempengaruhi kualitas/kekuatan struktur beton tersebut dan akan menyebabkan beton menjadi getas, dan memungkinkan struktur mengalami kegagalan. Diperlukan upaya proteksi pasif kebakaran dengan menggunakan material yang memiliki ketahanan terhadap api. Salah satu material yang memiliki ketahanan terhadap api yang baik adalah batu pumice. Penelitian ini bertujuan untuk mengetahui nilai kuat tekan dan laju penurunan kekuatan beton pumice yang menggunakan Pasir Muntilan sebagai agregat halus akibat perubahan suhu pembakaran pada 27°C, 300°C, dan 600°C. Penelitian menggunakan 45 buah benda uji silinder beton berukuran diameter 15 cm dan tinggi 30 cm. Dengan variasi penggantian batu pumice 0% , 25%, 50%, 75% dan 100% dari volume agregat kasar dan Faktor Air Semen (FAS) sebesar 0,5. Pengujian kuat tekan dengan alat compression saat umur 28 hari. Hasil penelitian ini menunjukkan bahwa suhu pembakaran mempengaruhi kuat tekan beton pumice dengan pasir Muntilan pada semua komposisi proporsi. Semakin tinggi suhu pembakaran maka semakin besar penurunan yang terjadi. Besaran penurunan kuat tekan akibat kenaikan suhu pembakaran berkisar antara 0,16% hingga 55,38% lebih lambat dibandingkan dengan beton tanpa menggunakan batu pumice Kata kunci: Beton, Batu Pumice, Performa Beton  Abstract Concrete that has been burned at 400° C will experience degradation to a residual compressive strength of 58.40%. This will affect the strength of the concrete structure and will cause the concrete to become brittle, thus allowing the structure to fail. Then it will require passive fire protection by using materials that have some resistance to the fire. One material that has the potential to create fire resistance is pumice stone. The purpose of this study was to determine the value of compressive strength and the rate of reduction in compressive strength of Muntilan sand pumice concrete due to the changes in combustion temperature of 27ËšC,300ËšC, and 600ËšC. In this study, used a 45 pieces concrete cylinder with a diameter of 15 cm and a height of 30 cm. with variations of pumice stone proportion of 0%, 25%, 50%,75% and 100% of the volume of coarse aggregate with a water cement ratio of 0.5. Compressive strength test with a compression device at the age of 28 days. The results of this study indicate that the combustion temperature affects the compressive strength of pumice concrete. The higher the combustion temperature, the higher the strength reduction that occurs. The amount of reduction in compressive strength due to an increase in combustion temperature ranged from 0.16% to 55.38% of the control specimens. Keywords: Pumice, Compressive Strength, Temperature
Comparative Study Of Dynamic Earthquake Analysis With Spectral Design And Time History Methods Eka Saputra, Nugraha; Priastiwi, Yulita Arni
Jurnal Indonesia Sosial Teknologi Vol. 4 No. 8 (2023): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jist.v4i8.700

Abstract

Earthquakes are natural events that cannot be prevented by humans and their occurrence is very difficult to predict. In civil engineering, especially in the structural field, earthquake loads are a major problem in planning economical and safe building structures. This study aims to determine the comparison of earthquake structures with the Response Spectrum, Response Spectrum Matched, Time Histories, and Time Histories Matched methods on the magnitude of the natural vibration period of the structure, the basic shear force, mass participation, displacement, and deviation between levels. The results of this study that the period of natural vibration of the structure with the earthquake method RS 1.412 seconds, RSM 1.453 seconds, TH 1.453 seconds, and THM 1.453 seconds is between the lower limit of 1.054 seconds and the upper limit of 1.476 seconds, so it meets the requirements of SNI 1726:2019. The results of the base shear analysis showed that dynamic analysis is greater than static and the structural model meets the requirements that VDynamics > 100%. VStatic. The results of the analysis of building mass participation in various earthquake methods meet the provisions with results of more than 90%. The results of the analysis of displacements are obtained for the x-direction, the largest THM is 41.945 mm and for the y-direction, TH is 57.330 mm. The results of the drift ratio analysis are obtained for the results of the y-direction drift which is greater than the x-direction drift and permit control for all earthquake methods is safe and meets the requirements of SNI 1726:2019.
Co-Authors . Widayat Abi Nabil Hanif Adi Putra, Kukuh Cahya Andi Retno Ari Setiaji Andreanto, Stefanus Kristian Anik Sarminingsih, Anik Arif Hidayat Arif Hidayat Arif Hidayat Badru, Zidny Salamsyah Bambang Pardoyo Bima Bima Blinka Hernawan Prasetya Cahyo, Bagas Indra Carita, Nensi Christhy Amalia Sapulete, Christhy Amalia Daryanto, Dwi Dina Daniaty Edo Antonio Eka Saputra, Nugraha Enda Suranta Sitepu Gardha Satria Fadillah Gilbert Fernando Han Ay Lie Hardi Wibowo Himawan Indarto Himawan Indarto Husna, Khotimatul Ifan Hasnan Taufiqur Rohman Ilham Nurhuda Ilham Nurhuda Iswandi Imran Kenny Ghalib Luthfiana, Nisa M. Lutfi Moh Nur Sholeh Mona Dwi Anggraeni Muhammad Rizkivano Akbar Muhrozi Muhrozi Muhrozi Muhrozi Nauval Rabbani Nazila, Kamila Shaomi Nuroji Nuroji Nuroji Nuroji Pratomo, Shendy Eko Purwanto Purwanto Purwanto Purwanto Purwanto Purwanto Putriagsari, Farah Naurah Ratna Purwaningsih Rizki Amalia Putri Rudi Yuniarto Adi Samuel Parluhutan Saputra, Nugraha Eka Sekarningtyas, Nazifa Sendrika, Difa Bagus Setiadi, Muhammad Irfan Silviana Silviana Sri Prabandiyani Retno Wardani Sri Prabandiyani Retno Wardani Sri Prabandiyani Retno Wardani Sri Tudjono Sukamta Sukamta Tamrin, Rinaldo Thoyfurrohman, Muhammad Akhis Ulayya, Inandhiya Ayu Undayani Cita Sari Undayani Cita Sari Vicky Ramadhani, Vicky Windu Partono Windu Partono Yohanes Agung Nugroho Yulianti, Erika Zainuddin, Zainuddin