scholarly journals EVALUASI KINERJA STRUKTUR DUAL SYSTEM DENGAN BELT TRUSS

2021 ◽  
Vol 5 (2) ◽  
pp. 289
Author(s):  
Dwi Prasetyo Utomo ◽  
Roesdiman Soegiarso
Keyword(s):  
Structural Engineering ◽  
Dual System ◽  
Truss Structure ◽  
Response Modification Factor ◽  
Building Regulations ◽  
Earthquake Loads ◽  
Overstrength Factor ◽  
Earthquake Resistant ◽  
Modification Factor ◽  
Fema 356

In structural engineering applications, the limit of building deflection or interstory drift is an important issue. In high-rise buildings that are more than or equal to 60 floors in the current era, systems are used in the structure of the building. The function of the Belt Truss is to reduce the deflection that occurs in the building by converting the building's overturning moment into the axial force of the exterior column. The Belt Truss structure itself can use reinforced concrete structures and steel structures. Because the Belt Truss structure is an innovation in the world of structural engineering, the parameter values for earthquake loads are not listed in the applicable Building Planning Standards. The standard for earthquake-resistant building regulations requires the parameters of Response Modification Factor (R), Overstrength Factor (Ωo), and Deflection Magnification (Cd) for determining earthquake loads. Because the parameters on the Belt Truss structure are not listed in the Standard for Earthquake Resistant Building Regulations, a study of the earthquake load parameters on the Belt Truss structure was carried out. The method used in this research is a literature study using Pushover Load Analysis according to ATC - 40 and FEMA 356. Keywords: Belt Truss, Dual System; ATC – 40; FEMA 356; Response Modification Factor (R); Overstrength Factor (Ωo); and Deflection Magnification (Cd) AbstrakDalam aplikasi rekayasa struktur gedung, batasan defleksi bangunan atau interstory drift adalah masalah penting. Pada bangunan tinggi yang lebih dari atau sama dengan 60 lantai pada era sekarang sudah menggunakan sistem pada struktur bangunan tersebut. Fungsi dari Belt Truss tersebut berguna untuk mengurangi defleksi yang terjadi pada bangunan dengan mengkonvesi momen guling bangunan menjadi gaya aksial kolom eksterior. Struktur Belt Truss sendiri materialnya bisa menggunakan struktur beton bertulang dan struktur baja. Karena struktur Belt Truss merupakan inovasi pada dunia rekayasa struktur, maka nilai parameter beban gempa tidak tercantum pada Standar Peraturan Perencanaan Bangunan yang berlaku. Standart Peraturan Bangunan tahan gempa diperlukan parameter – parameter Faktor Modifikasi Respon (R), Faktor Kuat Lebih (Ωo), dan Perbesaran Defleksi (Cd) untuk penentuan beban gempa. Dikarenakan parameter pada struktur Belt Truss tidak tercantum pada Standar Peraturan Bangunan Tahan Gempa, maka dilakukan penelitian parameter-parameter beban gempa pada struktur Belt Truss tersebut. Metode yang digunakan dalam penelitian ini adalah studi literatur dengan menggunakan analisa Beban Dorong Pushover Analysis sesuai ATC - 40 dan FEMA 356.

scholarly journals STRUCTURE OF EARTHQUAKE RESISTANT CONCRETE BUILDING WITH DUAL SYSTEM USING SNI 1726: 2019

Neutron ◽  
2020 ◽  
Vol 19 (2) ◽  
pp. 1-9
Author(s):  
Novi Gita Apriliani ◽  
Tony Hartono Bagio
Keyword(s):  
Structural Design ◽  
Dual System ◽  
Main Beam ◽  
Building Structures ◽  
Building Structure ◽  
Structural Concrete ◽  
Earthquake Loads ◽  
Earthquake Resistant ◽  
Concrete Building ◽  
Earthquake Resilience

The higher a building, the greater the burden due to lateral forces. In the planning of the building structure of Apartment 88 Avenue Surabaya, a Dual system is used. This building planning is based on the Structural Concrete Requirements for Buildings (SNI 2847: 2019). And for earthquakes based on Earthquake Resilience Planning Procedures for Building and Non- Building Structures (SNI 1726: 2019 ). In the analysis of earthquake loads using dynamic analysis of the Response Specific Trump. The structure is planned to use reinforced concrete construction. The planning method includes the primary structure, namely the dimensioning and reinforcement of the main beam, and the column. And the secondary structure which consists of dimensioning and reinforcing plates, joists. From the results obtained structural design dimensional beam 35/70 cm ( 5D22; 3D22 ), the joist 30/55 cm ( 2D16; 2D16 ), the floor slab 14 cm thick ( D10-275 )

QUANTIFYING GLOBAL SEISMIC PERFORMANCE FACTORS IN DUAL SYSTEMS WITH BUCKLING RESTRAINED BRACED FRAMES

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Sipan Yavarian ◽  
Rais Ahmad
Keyword(s):  
Nonlinear Models ◽  
Lateral Force ◽  
Dual System ◽  
Dual Systems ◽  
Response Modification Factor ◽  
Seismic Force ◽  
Modification Factor ◽  
Buckling Restrained Braced Frames ◽  
Collapse Behavior ◽  
Factor C

Dual structural systems are commonly used in high rise buildings for various architectural reasons. Buckling Restrained Braced Frame (BRBF) is an emerging seismic force-resisting system that is currently being permitted by American Society of Civil Engineers (ASCE) to be used either as a single seismic force-resisting system or in combination with other seismic force resisting systems. In conventional practice, ASCE suggests that while using BRBF in conjunction with other lateral force resisting systems in a dual configuration, the lowest Response Modification Factor (R) pertaining to the softer system shall be used. This may result in significant overdesigning of structures as higher contribution from the BRBF system are often remain unutilized. This research aims at developing a methodology for calculating modified Response Modification Factor, R for structures where dual system occurs horizontally. This research investigates the effect of using the newly suggested Response Modification Factor (R) for dual systems, where a BRBF system is combined with an Intermediate Moment Frame (IMF). The study aims at proposing an innovative way of calculating Response Modification Coefficient (R), Over-strength Factor (Ωo) and Deflection Amplification Factor (Cd) pertaining to the dual system. A wide variety of archetype sets are designed following FEMA guidelines with modified R as trial values for different seismic zones. To validate the trial values for R, system over-strength and period-based ductility, nonlinear 3D static (pushover) analyses were performed. The nonlinear models directly simulate essential deterioration modes that contribute to collapse behavior. Afterwards, for collapse assessment, nonlinear incremental dynamic analyses are conducted.

Lessons Learned from Recent Earthquakes and Research and Implications for Earthquake-Resistant Design of Building Structures in the United States

1986 ◽  
Vol 2 (4) ◽  
pp. 825-858 ◽  
Author(s):  
Vitelmo V. Bertero
Keyword(s):  
Lateral Force ◽  
The United States ◽  
Lessons Learned ◽  
Structural Quality ◽  
Building Structures ◽  
Response Modification Factor ◽  
Earthquake Resistant Design ◽  
Earthquake Resistant ◽  
Modification Factor ◽  
Recent Earthquakes

Following an overview of the special problems inherent in the design and construction of earthquake-resistant buildings in regions of high seismic risk, the techniques that will be required to solve these problems in the U.S. are discussed. Some lessons learned from recent earthquakes, particularly those in Chile and Mexico in 1985, are discussed as are some results of integrated analytical and experimental research at the University of California, Berkeley. The implications of the ground motions recorded during the 1985 Mexican and Chilean earthquakes, the performance of buildings during the Mexican earthquake, and the research results previously discussed are then assessed with respect to seismic-resistant design regulations presently in force (UBC) as well as those formulated by ATC 3-06 and the Tentative Lateral Force Requirements recently developed by the Seismology Committee of SEAOC. The rationale for and reliability of the values suggested by the ATC for the “Response Modification Factor R” and by the SEAOC Seismology Committee for the “Structural Quality Factor Rw” are reviewed in detail. In the conclusion to the paper, two solutions for improving the earthquake-resistant design of building structures are proposed: an ideal (rational) method to be implemented in the future, and a compromise solution that can be implemented immediately.

Evaluation of response modification factor (R) of elevated concrete tanks

2012 ◽  
Vol 39 ◽  
pp. 199-209 ◽  
Author(s):  
Mostafa Masoudi ◽  
Sassan Eshghi ◽  
Mohsen Ghafory-Ashtiany
Keyword(s):  
Response Modification Factor ◽  
Modification Factor

scholarly journals Dynamic aspects of the code for the design of earthquake resistant buildings

1976 ◽  
Vol 9 (1) ◽  
pp. 63-67
Author(s):  
R. I. Skinner
Keyword(s):  
Structural Design ◽  
Dynamic Behaviour ◽  
Effective Utilization ◽  
Earthquake Loads ◽  
Code Of Practice ◽  
Earthquake Resistant

A brief review is given of the most important aspects of the dynamic behaviour of buildings, during elastic and inelastic deformations under earthquake loads, which must be considered for the effective utilization of the NZS 4203 "Code of Practice for General Structural Design and Design Loadings".

Earthquake resistant design of concentrically braced steel frames

1991 ◽  
Vol 18 (5) ◽  
pp. 839-850 ◽  
Author(s):  
R. G. Redwood ◽  
V. S. Channagiri
Keyword(s):  
Structural Engineering ◽  
Steel Structures ◽  
Braced Frames ◽  
Concentrically Braced Frames ◽  
Braced Frame ◽  
Earthquake Resistant Design ◽  
Earthquake Resistant ◽  
Concentrically Braced ◽  
Engineering Steel ◽  
The Impact

New provisions of the CSA standard for steel structures (CAN/CSA-S16.1-M89) dealing with detailing of concentrically braced frames for seismic design are described and related to requirements of the National Building Code of Canada. The basis of the new requirements is outlined, and an example eight-storey frame is used to outline a methodology for the design process for a ductile braced frame and to illustrate the impact of the provisions. Key words: design, structural engineering, steel, earthquakes, braced frame, standards.

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