scholarly journals Applying a new systematic fuzzy FMEA technique for risk management in light steel frame systems

Author(s):  
Ali Yeganeh ◽  
Moein Younesi Heravi ◽  
Seyed Behnam Razavian ◽  
Kourosh Behzadian ◽  
Hashem Shariatmadar
2020 ◽  
Vol 2020 ◽  
pp. 1-20
Author(s):  
Lihua Zhu ◽  
Cheng Zhao

This paper introduces a review of self-centering steel frame systems for seismic-resistant structures. The components and basic mechanisms of the developing posttensioned connections and self-centering braces are briefly introduced. The structural details and seismic behaviors of the self-centering systems proposed in recent years, including connections, energy dissipating braces, and steel frames, are condensed in categories. The theoretical and experimental results indicated that self-centering action could minimize residual deformation and structural damage. The energy dissipating capability of the self-centering systems is greatly enhanced by the application of energy dissipating device. The shape memory alloys (SMAs) and prepressed springs which exhibited great potential in energy dissipation and recentering capability have been studied increasingly in recent years. Abundant numerical models were propounded to investigate the cyclic response of these self-centering systems. The current research challenges and the critical issues which need further study are discussed at the end of this paper.


2007 ◽  
Vol 133 (3) ◽  
pp. 389-399 ◽  
Author(s):  
Maria M. Garlock ◽  
Richard Sause ◽  
James M. Ricles
Keyword(s):  

2014 ◽  
Vol 1020 ◽  
pp. 258-263
Author(s):  
Chi Yun Zhao ◽  
Kai Gong

In the current design of the traditional eccentrically braced steel frame systems, the link is a portion of the floor beam. The link damages because of absorbing energy firstly during an earthquake, therefore, the ability to repair the floor beam is very different, disruptive and costly and may affect the normal use of buildings because of the long repairing time. In addition, it is difficult to assess the extent of its damage, so we don't know whether the structure can survive under another earthquake. To solve these drawbacks, on the basis of this traditional eccentrically braced steel frame, the paper proposed a concept of the replaceable shear link which consisting of two channel sections bolted on either side of the web of the connecting floor beam (which called the new replaceable shear link thereinafter). The advantages and working mechanism of the new replaceable shear link were introduced in this paper, energy dissipations of the replaceable shear link and hysteretic behaviors of the eccentrically braced steel frame with replaceable shear links were analyzed under the cyclic loading by the finite element analysis software of ABAQUS. From the results of the analysis we can see, the new replaceable shear link has good seismic performance and deformation performance.


Author(s):  
ASHKAN BABAEI ◽  
SEYED MOHAMMADREZA MIRI LAVASANI ◽  
PARVIN NASSIRI ◽  
YOUNES NOOROLLAHI

Despite abundant resources, the automotive industry is reported to adversely impact the environment owing to the use of heavy machinery, diverse and governmental management policies for car production per hour, remarkable employed labor force, production cycle timing, etc. For this purpose, many studies involving environmental risk management have been conducted. To this aim, the present study has been carried out in pre-paint part No. 2 of IKCO (preparation process). In this regard, using FUZZY FMEA and VIKOR methods, the identified risks were assessed and reformative measures and solutions were classified, respectively. A total of 15 individuals considered HSE experts of IKCO were selected as a statistical sample size according to the Morgan table. Consequently, the high level risks were identified and appropriate solutions were suggested to reduce the environmental effects, and according to achieved scores, “torch adjustments based on compliance report” with the objective of reducing air pollution was selected as the compromise solution. IKCO should consider torch adjustment based on compliance report actions as its first priority.


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