Seismic Assessment and Retrofitting of Existing RC Structures: SeismoStruct and SeismoBuild Implementation

Latifi, Reza; Rouhi, Rahimeh

doi:10.13189/cea.2020.080206

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…We found the column-to-column distance is too large (8m). For demand performance for seismic retrofit, this research considers the RC jacketing method for improving the ductility and strength [29,30]. We propose to re-size the existing column size from 40 x 40cm to 50 x 60cm.…”

Section: Discussionmentioning

confidence: 99%

Seismic Performance Evaluation of Existing Building in Earthquake Prone Area Based on Seismic Index and Seismic Demand Method

Putra¹,

Ono²,

Syah³

et al. 2021

cea

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Padang is the capital of West Sumatra Province, close to three earthquake sources such as the Megathrust Zone, the Mentawai Fault, and the Great Sumatra Fault on the mainland. Due to the fact that the impact of the earthquake can create a tsunami event in the future, the government needs to prepare shelters for vertical evacuation. About 65 existing buildings have been selected as vertical evacuation buildings, but there is no clear information on their seismic performance. This research proposes a complete assessment of the existing RC building by considering soil characteristics such as the predominant period and Vs30 from microtremor observations. A selected 3 stories of a school building located in the earthquake red zone (Vs30 < 150m/s and predominant period T > 1.5s), less than 1 Km far from the shoreline, was considered in this paper. Based on the seismic index evaluation of the building, the X direction is smaller than the seismic demand (0.8) for the first and second floors (unsatisfactory). For the first, second and third floor, the Y direction has a larger seismic index than the seismic demand. Therefore, the performance is satisfactory for the first to the third story. Based on the required inspection, the building is unsatisfactory for the X-direction. Therefore, it needs to be strengthened. We propose a re-size of the RC for the building column to improve the ductility. The proposed size for the column is 50 x 60 cm. From the re-seismic evaluation, a satisfactory seismic index for the X and Y direction can be obtained.

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Section: Discussionmentioning

confidence: 99%

Seismic Performance Evaluation of Existing Building in Earthquake Prone Area Based on Seismic Index and Seismic Demand Method

Putra¹,

Ono²,

Syah³

et al. 2021

cea

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show abstract

“…Consider two structures of and represented as bare frame and with infill walls, where the infill walls are modelled in the frame as identical diagonal strut models. Perform a non-linear analysis on all model buildings using Seismostuct [10] software for seismic load analysis, and a comparison study is extracted from the analysis. A comparison is made on all elements of the buildings' performance separately.…”

Section: Design Datamentioning

confidence: 99%

“…The masonry infill walls were modelled using the simplified macro model stated by SeismoStruct [10]. This model is illustrated by two strut models: one is a com-pression/tension strut and the other is a shear strut.…”

Section: Materials Modellingmentioning

confidence: 99%

Seismic Performance of Open Ground StoreyBuilding Coupled with Shear Wall ConsideringInfill Wall Stiffness - A Case Study

Yousif,

Pragalath

2024

Preprint

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An open ground storey (OGS) is a sort of building plan in which the ground floor or lower levels of a structure include open spaces that are not surrounded by walls or columns, such as parking areas, commercial spaces, or lobbies. OGS buildings are known to be at risk of structural damage and collapse during an earthquake due to a lack of stiffness and strength in the open ground storey, which underestimates inter-level drift and force demand in ground storey columns. To compensate, multiple methods of fragility analysis are used to predict the possibility of the building failing at a certain Peak Ground Acceleration (PGA). The current study focuses on the seismic performance of OGS structures coupled with shear walls; the chosen building is designed in accordance with the ACI code. They were employed during dynamic time-history analysis to develop the dis- placement profile of the structure by constructing synthetic earthquakes based on the UBC 1997 response spectrum. For each of the selected OG’S buildings, probabilistic seismic demand models (PSDM) and accompanying fragility curves have been developed for various performance levels. For reference, similar studies are performed on bare frames as well as on infilled frames. It is found from the present study that the infilled walls have a slight influence on the building due to the presence of shear walls as they are known for good resistance to lateral loads nevertheless the infilled walls showed a slight reduction of the building displacement.

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Extracting Cluster-Level Uncertainty from K-Means Clustering—An Example of Analysis of Uncertainty Inherent to Valuation Methodologies for Multiple Construction Projects

Prasad

Balaji

Kapuganti

et al. 2022

Lecture Notes in Networks and Systems

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Seismic Assessment and Retrofitting of Existing RC Structures: SeismoStruct and SeismoBuild Implementation

Cited by 3 publications

References 9 publications

Seismic Performance Evaluation of Existing Building in Earthquake Prone Area Based on Seismic Index and Seismic Demand Method

Seismic Performance Evaluation of Existing Building in Earthquake Prone Area Based on Seismic Index and Seismic Demand Method

Seismic Performance of Open Ground StoreyBuilding Coupled with Shear Wall ConsideringInfill Wall Stiffness - A Case Study

Extracting Cluster-Level Uncertainty from K-Means Clustering—An Example of Analysis of Uncertainty Inherent to Valuation Methodologies for Multiple Construction Projects

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