Evaluation of seismic performance factors for steel DIAGRID structural system design

2016 ◽  
Vol 10 (4) ◽  
pp. 735-755 ◽  
Author(s):  
Dongkyu Lee ◽  
Soomi Shin ◽  
Youngkyu Ju
Keyword(s):  
System Design ◽  
Seismic Performance ◽  
Structural System ◽  
Performance Factors

Practitioner-friendly design method to improve the seismic performance of RC frame buildings

2021 ◽  
pp. 875529302098801
Author(s):  
Orlando Arroyo ◽  
Abbie Liel ◽  
Sergio Gutiérrez
Keyword(s):  
Seismic Performance ◽  
Design Method ◽  
Three Dimensional ◽  
Rc Frame ◽  
Structural System ◽  
Standard Code ◽  
Frame Buildings ◽  
Rc Frame Buildings ◽  
Mathematical Justification ◽  
Story Building

Reinforced concrete (RC) frame buildings are a widely used structural system around the world. These buildings are customarily designed through standard code-based procedures, which are well-suited to the workflow of design offices. However, these procedures typically do not aim for or achieve seismic performance higher than code minimum objectives. This article proposes a practical design method that improves the seismic performance of bare RC frame buildings, using only information available from elastic structural analysis conducted in standard code-based design. Four buildings were designed using the proposed method and the prescriptive approach of design codes, and their seismic performance is evaluated using three-dimensional nonlinear (fiber) models. The findings show that the seismic performance is improved with the proposed method, with reductions in the collapse fragility, higher deformation capacity, and greater overstrength. Furthermore, an economic analysis for a six-story building shows that these improvements come with only a 2% increase in the material bill, suggesting that the proposed method is compatible with current project budgets as well as design workflow. The authors also provide mathematical justification of the method.

A Framework for the Quantification of Non-Structural Seismic Performance Factors

2022 ◽  
pp. 1-27
Author(s):  
Daniele Perrone ◽  
Derek Rodriguez ◽  
Andre Filiatrault ◽  
Emanuele Brunesi ◽  
Clemens Beiter ◽  
...  
Keyword(s):  
Seismic Performance ◽  
Performance Factors

Strength and Seismic Performance Factors of Posttensioned Masonry Walls

2015 ◽  
Vol 141 (11) ◽  
pp. 04015038 ◽  
Author(s):  
Reza Hassanli ◽  
Mohamed A. ElGawady ◽  
Julie E. Mills
Keyword(s):  
Seismic Performance ◽  
Masonry Walls ◽  
Performance Factors

Optimal fractional-order PID control design for time-delayed multi-input multi-output seismic-excited structural system

2021 ◽  
pp. 107754632110531
Author(s):  
Abbas-Ali Zamani ◽  
Sadegh Etedali
Keyword(s):  
Time Delay ◽  
Control Systems ◽  
Design Process ◽  
Fractional Order ◽  
Seismic Performance ◽  
Pid Control ◽  
Pid Controller ◽  
Control Design ◽  
Structural System ◽  
Fractional Order Pid

The application of the fractional-order PID (FOPID) controller is recently becoming a topic of research interest for vibration control of structures. Some researchers have successfully implemented the FOPID controller in a single-input single-output (SISO) control structural system subjected to earthquake excitations. However, there is a lack of research that focuses on its application in multi-input multi-output (MIMO) control systems to implement it in seismic-excited structures. In this case, the cross-coupling of the process channels in the MIMO control structural system may result in a complex design process of controllers so that each loop is independently designed. From an operational point of view, the time delay and saturation limit of the actuators are other challenges that significantly affect the performance and robustness of the controller so that ignoring them in the design process may lead to unrealistic results. According to the challenges, the present study proposed an optimal fractional-order PID control design approach for structural control systems subjected to earthquake excitation. Gases Brownian motion optimization (GBMO) algorithm is utilized for optimal tuning of the controller parameters. Considering six real earthquakes and seven performance indices, the performance of the proposed controller, implemented on a ten-story building equipped with an active tendon system (ATS), is compared with those provided by the classical PID controller. Simulation results indicate that the proposed FOPID controller is more efficient than the PID in both terms of seismic performance and robustness against time-delay effects. The proposed FOPID controller can maintain suitable seismic performance in small time delays, while a significant performance loss is observed for the PID controller.

Review of Research on the Seismic Behavior of Integral Prefabricated Prestressed Concrete Slab-Column Structure

2013 ◽  
Vol 831 ◽  
pp. 176-180 ◽  
Author(s):  
Li Li Wu ◽  
Ya Can Cui ◽  
Rong Bin Zhou ◽  
Jia Qing Shi ◽  
Peng He ◽  
...  
Keyword(s):  
Research Methods ◽  
Seismic Performance ◽  
Prestressed Concrete ◽  
Seismic Behavior ◽  
Concrete Slab ◽  
Research Priorities ◽  
Structural System ◽  
Column Structure

The integral prefabricated prestressed concrete slab-column structure was a new structural system introduced to China in 1980s. The structure has a series of obvious advantages and the scholars focus research priorities on its seismic performance. The research methods and developments of seismic behavior of the slab-column structure are summarized, and some measures are also put forward to improve the seismic behavior.

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