scholarly journals Research on seismic behaviour of composite Steel concrete moment frames

Author(s):  
Bhavesh Joshi ◽  
Shahnawaz Ansari ◽  
Abhishek Sharma ◽  
Shailendra Kumar ◽  
Pratheek Sudhakaran

Most experimental research on composite steel concrete moment frames corresponds to situations of vertical loading. Under horizontal loading like earthquakes, positive bending moments can appear at the beam ends. To solve seismic design issues, a research effort has been promoted by the European Union. It involves experimental activity in several large European testing installations which are described and numerical model studies.

2008 ◽  
Vol 12 (sup1) ◽  
pp. 34-51 ◽  
Author(s):  
J. M. Castro ◽  
F. J. Dávila-Arbona ◽  
A. Y. Elghazouli

2019 ◽  
Vol 145 (7) ◽  
pp. 04019053 ◽  
Author(s):  
Chatchai Jiansinlapadamrong ◽  
KyoungSub Park ◽  
John Hooper ◽  
Shih-Ho Chao

2014 ◽  
Vol 30 (4) ◽  
pp. 1683-1709 ◽  
Author(s):  
Edgar Tapia-Hernández ◽  
Arturo Tena-Colunga

In order to help improve the seismic design of regular steel buildings structured with ductile moment-resisting concentrically braced frames (MRCBFs) using the general design methodology of Mexico's Federal District Code (MFDC-04), suitable design parameters were first assessed using the results of pushover analyses of 13 regular MRCBFs. In order to insure collapse mechanisms consistent with the assumptions implicit in a code-based design (strong-column/weak-beam/weaker-brace), it is proposed to relate the minimum strength ratio for the resisting columns of the moment frames and the bracing system. Improved equations are proposed for a more realistic assessment of ductility and overstrength factors. In a second stage, the effectiveness of the improved methodology was assessed with the design of six regular steel buildings with MRCBFs. Buildings were evaluated by performing both pushover and nonlinear time-history analyses under ten selected artificial ground motions related to the corresponding design spectrum.


2020 ◽  
Vol 9 (1) ◽  
pp. 94-107
Author(s):  
Savu Adrian-Alexandru

Abstract The purpose of the current paper is to raise awareness on the behaviour of rectangular reinforced concrete columns with disproportionate cross-section dimensions subjected to compression and biaxial bending, considering the fact that in the current structural design process, the design of columns is usually done with respect to each of the two principal directions without considering their combined effect. The paper is based on a case study regarding a building that is currently in the design phase, in which to obtain a correct seismic behaviour, rectangular columns with disproportionate cross-section dimensions were used. The design of both the building and the columns follows the Romanian seismic design codes (“P100-1/2013 - Seismic design code - Part 1 - Design provisions for buildings” and “SR-EN 1998/2004 - Design of structures for earthquake resistance”). Results were compared and conclusions were drawn based on the interaction curves and interaction surfaces computed with expressions from specialized literature and sectional analysis software.


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