Optimal seismic retrofitting of existing buildings considering environmental impact

2022 ◽  
Vol 250 ◽  
pp. 113391
Author(s):  
Nicholas Clemett ◽  
Wilson Wladimir Carofilis Gallo ◽  
Gerard J. O'Reilly ◽  
Giammaria Gabbianelli ◽  
Ricardo Monteiro
Keyword(s):  
Environmental Impact ◽  
Seismic Retrofitting ◽  
Existing Buildings

scholarly journals Assessing the Environmental Impact of Thermal Transmittance Tests Performed in Façades of Existing Buildings: The Case of Spain

2020 ◽  
Vol 12 (15) ◽  
pp. 6247
Author(s):  
David Bienvenido-Huertas
Keyword(s):  
Energy Consumption ◽  
Environmental Impact ◽  
Thermal Gradient ◽  
Air Conditioning ◽  
Experimental Methods ◽  
Existing Buildings ◽  
Heating Systems ◽  
Thermal Transmittance ◽  
Test Conditions ◽  
Air Conditioning Systems

Thermal transmittance tests constitute an appropriate tool to assess the energy performance of existing buildings. The heat flow meter method and the thermometric method are the most used experimental methods. One of the main criteria to guarantee appropriate test conditions and the representation of results is to ensure a high thermal gradient. For this purpose, heating or air conditioning systems should be used from three to seven days. Most studies related to experimental methods have addressed the appropriate test conditions; however, the environmental impact related to these conditions have not been analyzed. This study analyzes the energy consumption and the CO2 emissions related to the conditions of the thermal gradient required for tests. An energy analysis of 129,600 cases located in Spain was conducted. The results showed that heating systems are the best option to perform thermal transmittance tests, whereas air conditioning systems do not guarantee appropriate test conditions. As for the energy consumption and the percentage of hours with an appropriate thermal gradient, the adequacy of the heating setpoint temperature according to the predicted estimations of the external temperature during tests would mitigate their environmental impact. The reason is that, in certain cases, the increase of the setpoint temperature does not improve test conditions. Also, the use of heating systems would imply short test durations. Finally, the selection of small rooms with a small façade length would reduce the percentage of CO2 emissions between 31.37% and 36.1%. The results of this study could guarantee a more sustainable performance of thermal transmittance tests. In addition, the results could be used to perform life cycle analysis on buildings where thermal transmittance tests are performed.

SITUATION OF DESIGN AND CONSTRUCTION FOR RETROFITTING OF BUILDINGS IN THEKYRGYZ REPUBLIC

2019 ◽  
pp. 66-84
Author(s):  
Ulugbek Begaliev ◽  
Svetlana Brzev
Keyword(s):  
Seismic Retrofitting ◽  
School Buildings ◽  
Kyrgyz Republic ◽  
Existing Buildings ◽  
Steel Buildings ◽  
Structural Types ◽  
Current Design ◽  
Hazard Level ◽  
Earthquake Effects ◽  
First Time

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.

Lessons learned from using a donor skeleton in a 3 storey office building

2021 ◽  
Author(s):  
Karel Terwel ◽  
Matthij Moons ◽  
Paul Korthagen
Keyword(s):  
Environmental Impact ◽  
Lessons Learned ◽  
Office Building ◽  
Existing Buildings ◽  
Special Project ◽  
Limited Scale ◽  
Design And Construction ◽  
Building Elements

<p>During the last decade a lot of attention has been paid to sustainability of structures. Reuse of existing buildings, limiting environmental impact and reuse of elements were applied in practice. In general, reuse of elements, with for instance the use of a donor skeleton, was applied on a very limited scale, as this reuse often comes at a price. In 2018 there was an opportunity to apply a donor skeleton on a larger scale in an office building of 6200 m2. This paper will describe the process of design and construction of this special project, and will derive lessons learned in order to increase application of upscaling of building elements in future projects.</p>

scholarly journals The exoskeleton: a solution for seismic retrofitting of existing buildings

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

scholarly journals Seismic Retrofitting and Health Monitoring of School Buildings of Cyprus

2013 ◽  
Vol 7 (1) ◽  
pp. 208-220 ◽  
Author(s):  
C.Z. Chrysostomou ◽  
N. Kyriakides ◽  
A.J. Kappos ◽  
L. Kouris ◽  
E. Georgiou ◽  
...  
Keyword(s):  
Health Monitoring ◽  
Future Generation ◽  
Seismic Retrofitting ◽  
School Buildings ◽  
Assessment Methodology ◽  
Existing Buildings ◽  
Wireless Monitoring ◽  
Codes Of Practice ◽  
Seismic Forces

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.

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

2020 ◽  
Vol 72 (10) ◽  
pp. 955-965
Author(s):  
Stjepan Lakusic
Keyword(s):  
Significant Role ◽  
Public Awareness ◽  
Seismic Retrofitting ◽  
Assessment Procedure ◽  
Seismic Loads ◽  
Topical Issue ◽  
Existing Buildings

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.

scholarly journals A Review on Seismic Retrofit of Beam-Column Joints

2020 ◽  
Vol 06 (09) ◽  
pp. 80-93
Author(s):  
Sreadha A R, Dr.C.Pany and M V Varkey
Keyword(s):  
Seismic Risk ◽  
Seismic Retrofit ◽  
Seismic Retrofitting ◽  
Fiber Reinforced Polymers ◽  
Existing Buildings ◽  
Fiber Reinforced ◽  
Seismic Strengthening ◽  
Crucial Issue ◽  
Reinforced Polymers ◽  
The World

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).

A Seismic Retrofit Cost Database for Buildings with a Framed Structure

2014 ◽  
Vol 30 (2) ◽  
pp. 625-637 ◽  
Author(s):  
Reza Jafarzadeh ◽  
Jason M. Ingham ◽  
Suzanne Wilkinson
Keyword(s):  
Seismic Retrofit ◽  
Seismic Retrofitting ◽  
School Construction ◽  
Existing Buildings ◽  
Construction Costs ◽  
The World ◽  
Data Points ◽  
Key Variables ◽  
Data Collection Effort ◽  
Specific Challenge

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.

scholarly journals Rehabilitation of buildings as an alternative to sustainability in Brazilian constructions

2019 ◽  
Vol 9 (1) ◽  
pp. 139-143 ◽  
Author(s):  
Eduardo Linhares Qualharini ◽  
Luiz Henrique Costa Oscar ◽  
Maiane Ramos da Silva
Keyword(s):  
Environmental Impact ◽  
Rio De Janeiro ◽  
Sao Paulo ◽  
São Paulo ◽  
Existing Buildings ◽  
Urban Heritage ◽  
New Construction

AbstractRehabilitation and Sustainability complement each other insofar as new uses are defined for the existing constructions, avoiding the disposal and consequent environmental impact of this action. In Brazil, the culture of new construction still prevails, even with the relevant inventory of existing buildings, as indicated in studies conducted in Rio de Janeiro and São Paulo. Dissemination of knowledge of rehabilitation techniques can encourage the development of strategies for the implementation of these practices in brazilian market. Therefore, this paper will try to indicate techniques that may be improved and incorporated into the rehabilitation of Brazilian constructions, aiming aspects of sustainability and reinsertion of contemporary construction in urban heritage.

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