scholarly journals Application of steel in refurbishment of earthquake-prone buildings

2020 ◽  
Vol 72 (10) ◽  
pp. 955-965
Author(s):  
Stjepan Lakusic

Refurbishment of existing buildings has become an increasingly topical issue in recent years. The recent Zagreb earthquake has also increased public awareness about the issue of sensitivity of old buildings to seismic loads. Steel plays a significant role in all aspects of refurbishment as it offers reliable rehabilitation and retrofitting solutions. The paper provides an overview of refurbishment methods with an emphasis on the assessment procedure for existing buildings, and methods for their seismic retrofitting using steel. Solutions that use new steel elements or improve the properties of existing ones are discussed, and some innovative retrofitting systems are highlighted.

2019 ◽  
pp. 66-84
Author(s):  
Ulugbek Begaliev ◽  
Svetlana Brzev

There is a significant experience related to seismic retrofitting of existing buildings in many earthquake-prone regions of the world. Majority of older existing buildings were not designed to the seismic hazard level expected by current design codes; also, some structural types (like unreinforced masonry) are inherently more vulnerable to earthquake effects than others, e.g. well-designed reinforced concrete (RC) and steel buildings. It should be noted that seismic retrofitting of school buildings has been performed in several countries.It is proposed to effective strengthening of structures on the basis performance-design and pushover analyses, whis are an first time innovation for Kyrgyz Republic.


2022 ◽  
Vol 250 ◽  
pp. 113391
Author(s):  
Nicholas Clemett ◽  
Wilson Wladimir Carofilis Gallo ◽  
Gerard J. O'Reilly ◽  
Giammaria Gabbianelli ◽  
Ricardo Monteiro

2020 ◽  
Vol 25 ◽  
pp. 294-304 ◽  
Author(s):  
L. Martelli ◽  
L. Restuccia ◽  
G.A. Ferro

2013 ◽  
Vol 7 (1) ◽  
pp. 208-220 ◽  
Author(s):  
C.Z. Chrysostomou ◽  
N. Kyriakides ◽  
A.J. Kappos ◽  
L. Kouris ◽  
E. Georgiou ◽  
...  

The vulnerability of existing buildings to seismic forces and their retrofitting is an international problem. The majority of structures in seismic-prone areas worldwide are structures that have been designed either without the consideration of seismic forces, or with previous codes of practice specifying lower levels of seismic forces. In Cyprus, after the three earthquakes that occurred in 1995, 1996, and 1999, the Cyprus State, acting in a pioneering way internationally, has decided the seismic retrofitting of all school buildings, taking into account the sensitivity of the society towards these structures, which house the future generation of the society. In this paper the overall assessment methodology is presented, along with details of the over 10 year ongoing retrofitting program of the school buildings of Cyprus, with emphasis on the description of the program and the development of a wireless monitoring system. In addition, mathematical models of selected school buildings are presented and comparison is made with in-situ measurement.


2021 ◽  
Vol 11 (9) ◽  
pp. 423-429
Author(s):  
Ilona Samek ◽  
Magdalena Jańczyk ◽  
Joanna Milanowska

Introduction: Restrictions against the COVID-19 pandemic have resulted in a decrease in other contagious diseases. However, their prevention and treatment are still a topical issue. Purpose: To present the public awareness on infectious diseases taking into account the knowledge of people with medical education. Material and method: The study was conducted by means of the author's questionnaire. 158 questionnaires were collected and analysed. Results: Men and women of different age took part in the survey. Half of the respondents had medical education. The analysis showed that as many as 89.2% of the respondents were aware of the pathogenic factor of influenza, which is the virus. Only a small percentage of respondents had information regarding the number of influenza infections in Poland (10.8%) and worldwide (21.5%). Medics were aware of this in 10.0% and 28.8% respectively. Influenza was admitted by 81.0% of the respondents, while for other infectious disease (except COVID-19) the result was 75.3%. The respondents indicated as the most common route of transmission of infectious diseases the droplet route (66.5%), while fever was the typical symptom (81.0%). Washing hands turned out to be the most important prophylactic behaviour of respondents (50.6%) and especially of students (93.7%). Conclusions: Awareness of infectious diseases among Poles is not at the highest level. Those with medical education have slightly higher knowledge, but it is necessary to introduce educational programmes and update knowledge. 


2015 ◽  
Vol 3 (12) ◽  
pp. 181-186
Author(s):  
Rajendra Mohanty

To see how the community media played a role in establishing democracy in different parts of the world in the last one year, a study on different news, current affairs and publications between February-April 2011 was done. From the study it was evident that, community media indeed played a significant role in creating mass public awareness against their respective autocratic rulers and thereby prompting them to overthrow those governments. It was because of the community media that democratic principles are widely disseminated and adopted.


Author(s):  
Sreadha A R, Dr.C.Pany and M V Varkey

Earthquakes are one of the biggest life-threats in the world. The effect is immediate, with little to no warning about damage plans and the collapse of buildings/structures. Prevention of earthquake-related disasters has become more and more important in recent years. Preventing disasters involves reducing seismic risk by retrofitting existing buildings. Seismic retrofitting has now become a crucial issue. Retrofitting helps improve the structure's strength, resistivity and overall lifespan. Recent occurrences of earthquakes in various parts of the world have clearly shown the urgency of repairing deficient seismic structures. The paper summarised many past studies in the form of a seismic strengthening solution, based on the type of beam-column joints, retrofitting technology and fiber reinforced polymers (FRP).


2014 ◽  
Vol 30 (2) ◽  
pp. 625-637 ◽  
Author(s):  
Reza Jafarzadeh ◽  
Jason M. Ingham ◽  
Suzanne Wilkinson

A comprehensive database for the specific challenge of cost prediction when undertaking seismic retrofitting of existing buildings is presented. A rigorous data collection effort performed in Iran resulted in the generation of a database of 158 data points, each pertaining to a public school building with a framed structure. The generated database includes the information on the seismic retrofit cost values reflected in construction tender documents, together with the information on 14 variables envisaged to have a degree of influence on this cost. This information for a given building was carefully elicited from the final enacted documents developed through the seismic retrofit study of that particular school. Construction costs include structural costs and the costs of architecture and finishes. The database could be of value to those attempting to determine key variables that influence retrofit cost, or to those comparing retrofit practices and costs in different areas of the world.


2021 ◽  
Vol 244 ◽  
pp. 05024
Author(s):  
Natalya Braila ◽  
Nikolai Panchenko ◽  
Vadim Kankhva

The article is devoted to evaluation of the possibility of usage BIM for existing buildings. While BIM processes are established for new buildings, the majority of existing buildings is not maintained, refurbished or deconstructed with BIM yet. However, it can play a significant role for better operation and maintenance and building facility management. Research in creating BIM for existing buildings has received growing attention in recent years. The objective of this paper is to explore potential opportunities and barriers in constructing BIM for existing buildings


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