What does this research mean for the field?

Integrating infill walls and steel bracing in soft-story residential buildings increases lateral stiffness by up to 150% and reduces inter-story drift to within safety limits, supporting an optimal 30% openness ratio for seismic resilience. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate architectural and structural retrofitting strategies that improve the seismic performance of vulnerable soft-story residential buildings under moderate-to-high earthquake loads.

September 2, 2026Open Access

Retrofitting Existing Residential Building Structures to Increase Earthquake Resistance: A Case Study of Golpogriho, Shewrapara, Dhaka

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Authors

SZSifat Sadia Zaman GHG M A Balayet Hossain MHMd. Habibul Hassan

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Implication

Simulation study reveals that combined infill walls and steel bracing boost lateral stiffness by up to 150% in soft-story buildings, indicating viable seismic mitigation for urban dwellings.

Key Points

To evaluate architectural and structural retrofitting strategies that improve the seismic performance of vulnerable soft-story residential buildings under moderate-to-high earthquake loads.
Conducted structural modeling and field documentation using ETABS simulations on a representative soft-story residential building subjected to earthquake loads of magnitudes 5–6.
Evaluated multiple structural interventions, including shear walls, infill walls, and steel bracing, alongside an architectural parameter establishing a 30% openness ratio.
Integrating masonry infill walls with steel bracing increased lateral stiffness by up to 150%.
The combined retrofit strategy significantly decreased inter-story drift, bringing structural displacement within BNBC (2020) safety limits.

Cite This Study

Zaman et al. (2026) studied this question.

synapsesocial.com/papers/6a97e318c562ede874ec7be3 https://doi.org/10.5281/zenodo.22205844

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Implication

Simulation study reveals that combined infill walls and steel bracing boost lateral stiffness by up to 150% in soft-story buildings, indicating viable seismic mitigation for urban dwellings.

Retrofitting Existing Residential Building Structures to Increase Earthquake Resistance: A Case Study of Golpogriho, Shewrapara, Dhaka

Discussion

Member takes

Implication

Key Points

Cite This Study

Retrofitting Existing Residential Building Structures to Increase Earthquake Resistance: A Case Study of Golpogriho, Shewrapara, Dhaka

Discussion

Member takes

Implication

Key Points

Cite This Study

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