Prediction of hysteretic energy demands in steel frames using vector-valued IMs

2015 ◽  
Vol 19 (3) ◽  
pp. 697-711 ◽  
Author(s):  
Eden Bojorquez ◽  
Laura Astorga ◽  
Alfredo Reyes-Salazar ◽  
Amador Teran-Gilmore ◽  
Juan Velazquez ◽  
...  
Keyword(s):  
Steel Frames ◽  
Hysteretic Energy ◽  
Energy Demands ◽  
Vector Valued

On the Use of Vector-Valued Intensity Measure to Predict Peak and Cumulative Demands of Steel Frames under Narrow-Band Motions

2014 ◽  
Vol 595 ◽  
pp. 137-142 ◽  
Author(s):  
Edén Bojórquez ◽  
Alfredo Reyes-Salazar ◽  
Sonia E. Ruiz
Keyword(s):  
Narrow Band ◽  
Ground Motions ◽  
Steel Frames ◽  
Spectral Shape ◽  
Intensity Measure ◽  
Intensity Measures ◽  
Energy Demands ◽  
Long Duration ◽  
Story Drift ◽  
Vector Valued

In this study, various alternative vector-valued ground motion intensity measures (IMs) are used to estimate maximum inter-story drifts and hysteretic energy demands of steel framed buildings under long duration narrow-band ground motions. The vectors are based on the spectral acceleration at first mode of the structure as first parameterSa (T1). As the second parameter of the vector,IMsrelated to peak, integral and spectral shape parameters are selected. It is concluded that spectral-shape-based vector-valuedIMshave the best relation with maximum inter-story drift and energy demands in steel frames subjected to narrow-band earthquake ground motions.

Identifying the hysteretic energy demand and distribution in regular steel frames

2006 ◽  
Vol 6 (6) ◽  
pp. 479-491 ◽  
Author(s):  
Bulent Akbas ◽  
Jay Shen ◽  
Hakan Temiz
Keyword(s):  
Energy Demand ◽  
Steel Frames ◽  
Hysteretic Energy

scholarly journals Hysteretic Energy Demands in Multi-Degree-of-Freedom Systems Subjected to Earthquakes

Buildings ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 220
Author(s):  
Emrah Erduran
Keyword(s):  
Ground Motion ◽  
Energy Demand ◽  
Relative Strength ◽  
Degree Of Freedom ◽  
Special Focus ◽  
Hysteretic Energy ◽  
Demand Distribution ◽  
Single Degree ◽  
Energy Demands ◽  
Energy Based Design

Reliable estimation of energy demands imposed on a structure by a design ground motion is a key component of energy-based design. Although several studies have been conducted to quantify the energy demands in single-degree-of-freedoms systems, few have focused on multi-degree-of-freedom systems. This study aims to build on the knowledge from previous studies on multi-degree-of-freedom systems with special focus on the distribution of hysteretic energy demands among the components of the structure. Nonlinear response history analyses conducted under ground motion sets representing three different hazard levels show that the total input and hysteretic energy demands of multi-degree-of-freedom systems can be accurately estimated from equivalent single-degree-of-freedom systems for low- and medium-rise buildings. The distribution of hysteretic energy demands over the height of the multistory structures has been shown to vary significantly from ground motion to ground motion. Analyses results also show that the relative strength of adjoining beams and columns has a significant influence on the hysteretic energy demand distribution. On the other hand, the energy distribution is relatively insensitive to the damping model used in the analysis of the multi-degree-of-freedom system.

On the estimation of hysteretic energy demands for SDOF systems

2007 ◽  
Vol 36 (15) ◽  
pp. 2365-2382 ◽  
Author(s):  
Danny Arroyo ◽  
Mario Ordaz
Keyword(s):  
Hysteretic Energy ◽  
Energy Demands

Estimation of Hysteretic Energy of MDOF Structures Based on Equivalent SDOF Systems

2007 ◽  
Vol 340-341 ◽  
pp. 435-440
Author(s):  
Hong Nan Li ◽  
Feng Wang ◽  
Zhao Hui Lu
Keyword(s):  
Ground Motions ◽  
Estimation Method ◽  
Degree Of Freedom ◽  
Energy Relation ◽  
Energy Estimation ◽  
Single Degree Of Freedom ◽  
Hysteretic Energy ◽  
Single Degree ◽  
Energy Demands ◽  
The Relationship

It is important for obtaining the relationship between seismic energies of single degree-of-freedom (SDOF) systems and multiple degree-of-freedom (MDOF) structures in engineering. In this paper, the formula of hysteretic energy between the MDOF structures and equivalent SDOF systems is developed. Here is also presented the procedure for estimating hysteretic energy of MDOF structures subjected to severe ground motions employing the energy relation equation based on equivalent SDOF systems. Eight examples for two regular and six irregular MDOF structures show that the procedure to obtain the hysteretic energy demands of MDOF structures may be used as a simple and effective energy estimation method.

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