July '23


The IUP Journal of Structural Engineering

ISSN: 0974-6528

A 'peer reviewed' journal distributed by EBSCO and Proquest Database

Structural engineering is usually considered as a specialty discipline within civil engineering, but can also be studied in its own right. It is the science and art of designing and making buildings, bridges, frameworks and other similar structures. It has taken a completely different path since the middle of the 20th century. It involves understanding the load-resisting properties of components such as beams, columns, walls, slabs, plates, arches, shells, catenaries, etc., and selecting, proportioning, and connecting different components of a structure to resist the forces and displacements without affecting the safety of the structure. Structural Engineers are responsible for using funds, structural elements and materials creatively and efficiently. In recognition of the growing importance of this branch of engineering, IUP has come up with a quarterly journal, The IUP Journal of Structural Engineering.

Privileged access to Online edition for Subscribers.

Focus Areas
  • Reinforced Concrete Structures
  • Steel Structures
  • Cable Structures
  • Nonlinear Structures
  • Nuclear   Containment Structures
  • Structural Dynamics and Earthquake Engineering
  • Structural Analysis and Mechanics
  • Structural Condition/Health Monitoring of Bridge Structures
  • Analysis and Control of Vibrations
  • Properties and Strength of Materials
  • Construction Engineering
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Seismic Analysis of Reinforced Concrete Buildings with Coupled Irregularities
50
Seismic Fragility Estimates of Regular and Irregular Structures with Different Soil Conditions Using Time History Analysis
50
     
Contents : (July 2023)

Seismic Analysis of Reinforced Concrete Buildings with Coupled Irregularities
Jahanvi Suthar and Sharadkumar Purohit

Reinforced Concrete (RC) buildings with irregularities, plan and vertical, are susceptible to seismic damage. Such buildings are constructed due to functional, space and aesthetic considerations. Most practical irregular RC buildings have coupled irregularities: plan or vertical or mixed. The seismic behavior of coupled irregular RC buildings is an active area of research. In the present paper, five RC building models with coupled reentrant corners and vertical geometric irregularities are developed along with the regular RC building model. L-shaped and stepped-shaped reentrant corners type plan irregularity is coupled with vertical geometric irregularity by changing plan dimension at each floor level of RC building models. Building models are analyzed for seismic forces following the Indian seismic design code. Seismic parameters-peak base shear, peak displacement, peak interstory drift ratio, modal analysis, normalized base shear and normalized overturning moment-are extracted. It is found that peak displacement and peak interstory drift ratio of coupled irregular building models shows a substantial increase vis-a-vis regular building models. Normalized base shear and normalized overturning moment increase for all coupled irregular building models, except building model BM-3, as compared to the regular building model.


© 2023 IUP. All Rights Reserved.

Article Price : ₹ 50

Seismic Fragility Estimates of Regular and Irregular Structures with Different Soil Conditions Using Time History Analysis
Ramesh B M, K Manjunatha and Ravikumar C M

Over the years, in the study of earthquakes, there has been a shift in the use of current force-based methodology to performance-based methodology. In this study, an attempt has been made to study the seismic performance of regular and vertically irregular structures by making use of time history analysis to establish seismic fragility estimates. To perform the analysis, three Indian strong ground motions have been considered by varying soil conditions. Comparison has been made in terms of displacement and spectral accelerations for both regular and irregular structures with different soil conditions. The study highlights the importance of obtaining performances in terms of Operational Phase (OP), Immediate Occupancy (IO), Damage Control (DC), Life Safety (LS), and Collapse Prevention (CP). The seismic vulnerability of buildings has been obtained treating the foundation as isolated footing in terms of damages by taking strong ground motion data into consideration to perform performance-based analysis of structures with different soil conditions.


© 2023 IUP. All Rights Reserved.

Article Price : ₹ 50