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Safrudin Safrudin
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Journal : Civil Engineering Scientific Journal

 1 
FREKUENSI NATURAL GETARAN BEBAS TAK TEREDAM STRUKTUR GEDUNG TINGGI MENGGUNAKAN METODE ZALKA DAN SAP 2000 Rizaldi, Adi; Bahar, Adwan; Safrudin, Safrudin; Natsir, Rahmat
Civil Engineering Scientific Journal Vol 3, No 1 (2024): Civil Engineering Scientific Journal
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/cesj.v3i1.5006

Abstract

ABSTRACT: In tall building structures with a framed-tube structural system, the role of shear walls is most efficient in reducing the effect of lateral loads. A simple analytical calculation method using the Zalka method was developed to calculate the natural frequencies of tall building structures with a continuous system model consist of frames, shear walls, and cores. This continuous system model in tall building structures can be replaced by the idealization of cantilever beam structures with fixed-free end support conditions which represent the overall characteristics of the tall building structures. The aim of this research in this paper is to investigate the extent of the accuracy and efficiency of the results of natural frequency of 30 stories reinforced concrete building structure with the continuous system model above using the Zalka method compared to the SAP 2000 output. The results of this research are expected to provide in-depth insight into the effectiveness and the the readiness of the Zalkas method in determining the natural frequency of tall building structures due to lateral loads. Based on the results of this research, it was found that the natural frequency of a 30 stories reinforced concrete building structure using the Zalka method has error value equal to 4,884% compare to output from SAP 2000. This error value still in the range of acceptable value equal to 7% and shows us that Zalka method has acceptable accuracy.Keywords: Free Vibration, Natural Frequency, Tall Building, Frames-Tube System, Shear WallABSTRAK: Pada struktur bangunan tinggi dengan sistem struktur rangka-tabung, peranan dinding geser paling efisien dalam mereduksi pengaruh beban lateral. Metode perhitungan analitik sederhana menggunakan metode Zalka dikembangkan untuk menghitung frekuensi natural struktur bangunan tinggi dengan model sistem menerus yang terdiri dari rangka, dinding geser, dan inti bangunan. Model sistem menerus ini pada struktur bangunan tinggi dapat digantikan oleh idealisasi struktur balok kantilever dengan kondisi tumpuan jepit-bebas yang mewakili keseluruhan karakteristik pada struktur bangunan tinggi tersebut. Tujuan penelitian dalam penulisan ini adalah menyelidiki sejauhmana akurasi dan efisiensi hasil analisis frekuensi natural struktur gedung beton bertulang 30 lantai dengan model sistem menerus di atas menggunakan metode Zalka dibandingan hasil luaran (output) SAP 2000. Hasil penelitian ini diharapkan dapat memberikan wawasan mendalam tentang efektivitas dan kesiapterapan metode Zalka dalam penentuan frekuensi natural struktur bangunan tinggi akibat beban lateral. Berdasarkan hasil penelitian ini, diperoleh frekuensi natural struktur gedung beton bertulang 30 lantai menggunakan metode Zalka memiliki nilai kesalahan 4,884% dari hasil luaran (output) SAP 2000. Nilai kesalahan ini masih dalam batas yang wajar yaitu 7% dan menunjukkan bahwa metode Zalka mempunyai akurasi yang dapat diterima. Kata kunci: Getaran Bebas, Frekuensi Natural, Struktur Bangunan Tinggi, Sistem Rangka-Tabung, Dinding Geser
Co-Authors Aan Nurhasanah Abdul Aziz Abdul Aziz Abdul Kadir Adam Adam Adi Rizaldi, Adi Afrijon, Afrijon Ahalik, Ahalik Ahmad, Sabarudin Andreas Hariandja, Andy Martahan Ani Diana, Ani Anwar Anwar Ari Aprilia Dwiana Atikah Zulfa Utari, Atikah Zulfa Utari Azwar, Herlyssa Bahar, Adwan Bambang Santosa, Bambang Santosa BASTIAN BASTIAN, BASTIAN Dasmini, Dasmini DEWI FITRIA, DEWI Dewi Sukmawati Doho, Yohannes Don Bosco Efendi, Rinja Elvina Elvina Erniati Erniati Eros Siti Suryati Erwin Wijaya Fadhli, Syahrizal Fitri Purwanti Ghazali, Al Gustiawan, Deni Hasibuan, Abdul Putra Ginda Hastuti Indra Sari Heru Setiawan Hutagaol, Ramses Idhan, Mohamad Iis Dahlia, Iis Indah, Debby Indiradjati, Ken Tsania Indriyanti, Dewi Irfani M., Maslahatul Jayanti, Irma Julyanto, Rio Juniar, Virni Kani, Adisthi Kayla Karningsih Karningsih Karsam Karsam Kasusilaningrum, Tyas Lestari, Mila Magribi, La Ode Muhammad Mardeyanti, Mardeyanti mardika, alyanda_sahira Maulana, Achmad Mentari, Sri Moh Ali, Moh Mulyadi Mulyadi Muslinayati, Muslinayati Natsir, Rahmat Ningsih, Ayu Rahma Nur Habibah Nursi, Mulyadi Pane, Siti Karlina Br Sitorus Paryanti, Atik Budi Puji Hardati Purwanti, Winaya Rahman, Alief Aulia Rajab, Wahyudin Rejeki, Rejeki Renita Renita Reski, Seri Mulia Rofik, Ma'rur Rosidawati Rosidawati, Rosidawati Rusdin Rusdin Sabar Napitupulu Safitri, Miza saifudin, Asep Salsabila, Yuki Aliya Sari, Dewi Nirmala Sari, Nauili Tama Siti Aisyah Sri Sukamti, Sri Sudiyat, Rahmat suhanda , Hadis Suparman Suparman Suwito Eko Pramono Wahyudi, Sri Wandika, Faras Yulfitria, Fauziah Zulmita, Zulmita