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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Riset Rekayasa Sipil
Firdausa, Fadhila
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Civil Engineering, Building, Construction & Architecture Engineering Environmental Science

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Evaluasi Perilaku Seismik Akibat Ketidakberaturan Vertikal pada Bangunan Beton Bertulang Bertingkat Tinggi Prayuda, Hakas; Wilasamba, Ogata; Saleh, Fadillawaty; Maulana, Taufiq Ilham; Firdausa, Fadhila
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 2 (2022)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v28i2.41765

Abstract

Penelitian ini bertujuan untuk menginvestigasi perilaku bangunan bertingkat tinggi pada beton bertulang yang memiliki ketidakberaturan vertikal akibat beban seismik. Kekuatan bangunan dalam menahan beban yang bekerja adalah hal yang sangat penting untuk diperhitungkan. Ketidakberaturan bentuk bangunan yang mempengaruhi dari massa bangunan sangat mempengaruhi kekakuan dan kinerja bangunan khususnya ketika terjadi gempa bumi. Oleh sebab itu, perlu dilakukan evaluasi mengenai efek dari ketidakberaturan vertikal pada bangunan khususnya bangunan bertingkat tinggi. Pada penelitian ini menggunakan bangunan berbentuk S-Shape dengan variasi 5 ketidakberaturan vertikal. Evaluasi yang dilakukan menggunakan analisis numerik melalui aplikasi STERA 3D. Beban gempa yang digunakan berupa data riwayat waktu dari sejarah gempa yang pernah terjadi yaitu beban gempa El-Centro, Kobe dan Parkfield. Perilaku yang ditinjau pada penelitian ini terdiri dari gaya geser, deformasi lateral, kekakuan struktur, perpindahan, hubungan gaya geser dasar dengan displacement, drift ratio, respon percepatan maksimum, kurva kapasitas dan top orbit bangunan. Dari hasil simulasi numerik dapat disimpulkan bahwa dengan setiap model memiki performance yang berbeda-beda meskipun diberikan beban gempa dan material properties yang sama. Dapat disimpulkan bahwa ketidakberaturan bangunan arah vertikal sangat mempengaruhi performance seismic bangunan beton bertulang bertingkat tinggi.
ANALISIS PENGARUH BIJI KARET TERHADAP KUAT TEKAN BETON Firdausa, Fadhila; Marpaung, Raja; Artini, Sri Rezki; Diba, Annadiyah Farah; Ria, Vicky Wisma; Iryani, Arista Widya
Jurnal Riset Rekayasa Sipil Vol 4, No 1 (2020): September 2020
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (390.101 KB) | DOI: 10.20961/jrrs.v4i1.44634

Abstract

The development of technology construction has reached a period of caring for the environment. Many things been developed to support environmentally friendly construction. Itcan be started from the use of a mixture of natural ingredients into a mixture of construction materials. Concrete is a construction material that is often used in Indonesia, given its ease, price, and durabilityAlong with the development of the concrete periods has experienced many advances, one of which is in the drafting of a combined mix of making concrete, and to supporting environmentally friendly concrete, a mixture of natural materials are used as one of the making material of concrete.South Sumatra is one of the islands in Sumatra, which has an abundant plantation of rubber. The large number of rubber plantations makes rubber waste more and more, one of which is rubber seeds. Therefore it is necessary to treat rubber seed waste in order to reduce the amount of rubber seed waste and can be used to improve the economy of the surrounding community.  The rubber itself has many advantages in the industrial field. Utilization of rubber has been widely used, but no one has used rubber seeds as an aggregate substitution material in making a concrete without other chemicals. Therefore this research will discuss the rubber seed mixture as a substitute for coarse aggregate. The material used to make concrete is portland type I cement, coarse and fine aggregate from the Tanjung Raja area, and the rubber seeds used are from the Sembawa area. Coarse aggregate substitution using a mixture of rubber seeds  5%, 10%, 15%, and 20% were tested during the age of concrete of 7 days, 14 days, and 28 days.. The compressive strength of rubber seed substitution with a percentage of 5% shows the most significant compressive strength value of 19.33 Mpa. From the test results of this study it can be concluded that the greater the use of rubber seeds, the lower the compressive strength.
Co-Authors Diba, Annadiyah Farah Fadillawaty Saleh, Fadillawaty Hakas Prayuda Iryani, Arista Widya Raja Marpaung Ria, Vicky Wisma Sri Rezki Artini Taufiq Ilham Maulana Wilasamba, Ogata