Seismic Fragility Assessment of Existing 9 Storey Reinforced Concrete (RC) Buildings in Patna, India

2021 ◽  
pp. 119-134
Author(s):  
Pratyush Kumar ◽  
Avik Samanta
Keyword(s):  
Reinforced Concrete ◽  
Seismic Fragility ◽  
Rc Buildings

Seismic Fragility Analysis of Reinforced Concrete Frames with Service Life

2012 ◽  
Vol 446-449 ◽  
pp. 2313-2316
Author(s):  
Li Li Yuan ◽  
Jian Min Wang ◽  
Neng Jun Wang ◽  
Wen Ting Jiang
Keyword(s):  
Reinforced Concrete ◽  
Service Life ◽  
Fragility Curve ◽  
Seismic Fragility ◽  
Concrete Frames ◽  
Damage State ◽  
Reinforced Concrete Frames ◽  
Nonlinear Mechanical ◽  
Interstorey Drift ◽  
Definition Of

An analytical method to obtain the seismic fragility curve of reinforced concrete frames with service life was proposed in this paper. Considering the variation of nonlinear mechanical characteristics of un-carbonated concrete with service life, the seismic fragility curve of frames was developed based on the interstorey drift corner in the weak storey of frame structures. According to the damage state definition of frames, each seismic fragility curve reflects the probability tendency of the defined damage state happening in frames with service life. It is helpful for the seismic performance analysis of reinforced concrete frames to use the proposed method.

scholarly journals Concept of Computer Vision Based Algorithm for Detecting Thermal Anomalies in Reinforced Concrete Structures

Proceedings ◽  
2019 ◽  
Vol 27 (1) ◽  
pp. 18
Author(s):  
Michele De Filippo ◽  
Sasan Asadiabadi ◽  
Nigel Ko ◽  
Harris Sun
Keyword(s):  
Computer Vision ◽  
Reinforced Concrete ◽  
Qualitative Assessment ◽  
Current Status ◽  
Rc Buildings ◽  
Rc Structures ◽  
Thermal Anomalies ◽  
Beam Elements ◽  
Image Capturing ◽  
Thermal Infrared Anomalies

In Hong Kong, there is great abundancy of aged buildings and infrastructures for which a re-assessment of the current status is needed. Water exfiltrations/infiltrations, deteriorating insulations, thermal bridges and regions of failure are among the most recurrent symptoms to be found in existing Reinforced Concrete (RC) structures. Diagnosis of such symptoms, in the form of thermal infrared anomalies, is usually performed through infrared (IR) image capturing, followed by qualitative assessment. This paper presents a novel automated computer-vision-based method for detecting thermal anomalies. Such Computer-Vision (CV) algorithm is tested on different thermal scenarios including beam elements, roofs and entire façades of RC buildings. Thermal anomalies related to cases of water leakages, moisture trapping and debonding are successfully detected. The authors intend to undertake further research for successfully implementing the method for detecting also other thermal dissimilarities.

Measures of the Seismic Vulnerability of Reinforced Concrete Buildings in Haiti

2011 ◽  
Vol 27 (1_suppl1) ◽  
pp. 373-386 ◽  
Author(s):  
Patrick O'Brien ◽  
Marc Eberhard ◽  
Olafur Haraldsson ◽  
Ayhan Irfanoglu ◽  
David Lattanzi ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Seismic Vulnerability ◽  
The United States ◽  
Faculty Members ◽  
Rc Buildings ◽  
Screening Process ◽  
Cross Sectional ◽  
Screening Criteria ◽  
Survey Results ◽  
Similar Survey

Following the 12 January 2010 Haiti earthquake, teams of students and faculty members from the United States and Haiti surveyed 170 reinforced concrete (RC) buildings in Port-au-Prince and Léogâne. This paper summarizes the survey results and compares them with results from a similar survey done after the 1999 earthquakes near Düzce, Turkey. The survey results demonstrate that the frequency of damage in RC buildings was higher in Haiti than in Turkey. This increased level of damage is consistent with practical screening criteria based on cross-sectional areas of building columns and walls. Based on these criteria, 90% of the structures surveyed in Haiti would have been classified as seismically vulnerable before the earthquake. Damage was more frequent in structures with captive columns. A two-tiered screening process is suggested to rapidly assess the vulnerability of scores of poorly built low-rise RC buildings in future earthquakes.

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