Komal Rajana

• PhD, MSc(Eng.), BEng.
• City, University of London

This paper addresses the optimal tuning and numerical performance assessment of regenerative tuned mass damper inerters (RE-TMDIs) in three different configurations with non-grounded inerters attached to cantilevered primary structures under Gaussian white noise base excitation. The studied RE-TMDI configurations behave linearly and differ in the p...

In recent decades, the shortage of affordable housing has become an endemic issue in many cities worldwide due to the ongoing urban population growth. Against this backdrop, volumetric steel modular building systems (MBSs) are becoming an increasingly compelling solution to the above challenge owing to their rapid construction speed and reduced upf...

8 This paper conceptualizes a novel passive vibration control system comprising a tuned mass damper inerter 9 (TMDI) contained within a seismically isolated rooftop and investigates numerically its effectiveness for seismic 10 response mitigation of building structures. The working principle of the proposed isolated rooftop tuned mass 11 damper ine...

In recent years, the tuned mass damper inerter (TMDI) has been demonstrated in several theoretical studies to be an effective vibration absorber for the seismic protection of non-isolated buildings. Its effectiveness relies on careful tuning of the TMDI stiffness and damping properties, while its performance improves with the increase of the inerta...

Recently, the passive tuned mass damper inerter (TMDI) has been widely considered in the literature to protect structures from earthquakes. Its effectiveness relies on careful design/tuning of the TMDI stiffness and damping properties, while its performance improves with the increase of the inertance property which is readily scalable. Nevertheless...

In recent years, the passive tuned mass damper inerter (TMDI) has been widely considered in the literature for the seismic demand mitigation of building structures. Its effectiveness relies on careful design/tuning of the TMDI stiffness and damping properties, while its performance improves with the increase of the inertance property, which is read...

This paper presents an extensive parametric study of elastic and inelastic buckling of cellular beams subjected to strong axis bending in order to investigate the effect of a variety of geometric parameters, and further generate mass data to validate and train a neural network-based formula. Python was employed to automate mass finite element (FE)...

This paper describes how a wavelet model comprised of a linear combination of sine terms is capable of repre-senting the cross-section inertia variation along the length of cellular beams. This allows for the efficient compu-tation of deflections of cellular beams while being deployed as part of steel-concrete composite flooring systems, without co...

Cellular beams are an attractive option for the steel construction industry due to their versatility in terms of strength, size, and weight. Further benefits are the integration of services thereby reducing ceiling-to-floor depth (thus, building’s height), which has a great economic impact. Moreover, the complex localised and global failures charac...