A Proposal on the Simplified Structural Evaluation Method for Existing Reinforced Concrete Buildings with Infilled Brick Masonry Walls

2018 ◽  
pp. 493-503
Author(s):  
Matsutaro Seki ◽  
Masaki Maeda ◽  
Hamood Al-Washali
Keyword(s):  
Reinforced Concrete ◽  
Evaluation Method ◽  
Brick Masonry ◽  
Masonry Walls ◽  
Reinforced Concrete Buildings ◽  
Concrete Buildings ◽  
Structural Evaluation

scholarly journals Influence of Chained Masonry on the Seismic Response of Reinforced Concrete Buildings

2021 ◽  
Vol 18 (16) ◽  
Author(s):  
Abdelkader NOUR ◽  
Abdelkader BENANANE ◽  
Humberto VARUM
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Seismic Response ◽  
Masonry Wall ◽  
Masonry Walls ◽  
Reinforced Concrete Buildings ◽  
Seismic Code ◽  
Concrete Buildings ◽  
Finite Element Software ◽  
Algerian Seismic Code

The influence of chained masonry walls, which represents a special case of masonry infill without gap, on the seismic response of reinforced concrete buildings is extremely important due to their wide use in this type of building. We can consider the period of building as the key parameter to study this influence. In this article, we had carried out a comparative study of several 2D models of a multi-storey reinforced concrete building with a brick chained masonry wall using the response spectrum method in the ETABS finite element software, following the prescriptions of the current Algerian seismic code. This study included the use of the number of spans, the span length, the number of storeys, the thickness of the chained masonry wall, the ground soft storey, the openings in the walls, and the short column for studying the influence of these to the walls. The values from the numerical simulation were compared with those from the formula of the period of building, provided by both the Algerian and European codes. Based on the results obtained, we were able to assess the influence of chained masonry walls on the seismic response on this type of buildings. Through this article, we have concluded that these walls have a great influence on the overall behavior of reinforced concrete buildings under seismic loading. HIGHLIGHTS Clarify the importance of numerical simulation of chained masonry walls in the design of reinforced concrete buildings Give recommendations to the current Algerian seismic code for properly design the infilled buildings with chained masonry Know the great danger marked in the current conceptions, which neglect these walls in the phase of conception Give to the infilled reinforced concrete buildings an adequate design in case of earthquake loadings GRAPHICAL ABSTRACT

scholarly journals BENEFIT FROM CHAINED MASONRY WALLS TO IMPROVE THE SEISMIC RESPONSE OF REINFORCED CONCRETE BUILDINGS

2021 ◽  
Vol 30 (2) ◽  
Author(s):  
Abdelkader Nour ◽  
Abdelkader Benanane ◽  
Humberto Varum
Keyword(s):  
Reinforced Concrete ◽  
Seismic Behavior ◽  
Lateral Displacement ◽  
Response Spectrum ◽  
Masonry Walls ◽  
Base Shear ◽  
Reinforced Concrete Buildings ◽  
Concrete Buildings ◽  
Finite Element Software ◽  
Seismic Loadings

The multiple earthquakes have proved the effect of chained masonry walls on the seismic behavior of multistoried reinforced concrete buildings. The chained masonry walls have been considered one of the types of masonry infill walls but without gaps. This participation came intending to study this effect through the modeling of several two-dimensional frames for a multistoried reinforced concrete building, taking into account the hollow brick walls, which represent the most common type in Algeria. We analyzed the proposed models using ETABS finite element software, relying on the response spectrum method and respecting the most important requirements according to the applicable Algerian Seismic Code. After analysis of the different models, the results have been compared according to the parameters of the period, base shear, lateral displacement, and stiffness. Through a critical synthesis of the results, we concluded that these walls could significantly affect the seismic behavior of this type of buildings. Moreover, the neglect of these walls in the modeling process can lead designers to have a false perception of the behavior of these buildings towards seismic loadings.    

Seismic risk priorities of site and mid-rise RC buildings in Turkey

2020 ◽  
Vol 6 (4) ◽  
pp. 191
Author(s):  
Ercan Işık ◽  
İbrahim Baran Karaşin ◽  
Alper Demirci ◽  
Aydın Büyüksaraç
Keyword(s):  
Reinforced Concrete ◽  
Large Scale ◽  
Evaluation Method ◽  
Urban Transformation ◽  
Reinforced Concrete Buildings ◽  
Building Stock ◽  
Concrete Buildings ◽  
Priority Map ◽  
Frequency Relation ◽  
The Republic

Especially, the large-scale loss of life and property caused by the significant earthquakes in recent years has brought the importance of research and measures to be taken on this issue. Determining and analysing the ever-increasing building stock of the cities and detecting and managing all information related to buildings are important in terms of spatial planning and urban transformation. This study aims to determine tectonic characteristics calculating a and b values of Gutenberg- Richter magnitude-frequency relation which forms the basis of earthquake statistics for all cities in Turkey and the reinforced-concrete buildings which are primarily risky in terms of urban transformation. For this purpose, a total of 1620, 5-storey buildings from all provinces of Turkey were assessed. Twenty reinforced concrete buildings from each province were taken into consideration which has 5-stories. The first stage evaluation method specified in the principles regarding the identification of risky buildings issued in 2013 by the Republic of Turkey, Ministry of Environment and Urbanization was used in this study. The performance scores for 1620 buildings were calculated by using this method. A risk priority map was created for the provinces, taking into account for these buildings. The study aims to determine risk priorities of site and mid-rise reinforced-concrete buildings among the cities. The results obtained were interpreted and recommendations were made.

scholarly journals Seismic evaluation method for existing reinforced concrete buildings in North of Morocco

2019 ◽  
Vol 17 (7) ◽  
pp. 3873-3894 ◽  
Author(s):  
Seif-eddine Cherif ◽  
Mimoun Chourak ◽  
Mohammed Abed ◽  
Luis Pujades
Keyword(s):  
Reinforced Concrete ◽  
Evaluation Method ◽  
Seismic Evaluation ◽  
Reinforced Concrete Buildings ◽  
Concrete Buildings

scholarly journals A method for the evaluation of the seismic capacity of existing reinforced concrete buildings in Japan

1981 ◽  
Vol 14 (3) ◽  
pp. 105
Author(s):  
Hiroyuki Aoyama
Keyword(s):  
Reinforced Concrete ◽  
New Zealand ◽  
Evaluation Method ◽  
Reinforced Concrete Buildings ◽  
Seismic Capacity ◽  
Basic Principles ◽  
Concrete Buildings ◽  
Frame Building ◽  
Capacity Evaluation ◽  
Protection Index

A three-level procedure for seismic capacity evaluation of existing reinforced concrete buildings, developed in Japan, is reviewed. The paper describes basic principles and their background which formed the basis of the evaluation method. The outline of the three-level procedure is given and the applications of the procedure to buildings which experienced several recent destructive earthquakes in Japan, are reviewed. A seismic protection index, to determine the appropriate level of seismic capacity, is proposed. A hypothetical four-storey frame building in New Zealand is evaluated by the three-level procedure. Subsequently comments are offered with respect to problems that may arise if the Japanese procedures were to be applied to buildings in New Zealand.

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