In this paper the vibration behaviors of a structure equipped with a tuned liquid column damper (TLCD) under a harmonic type of earthquake loading are studied. However, due to inherent nonlinear liquid damping, it is no doubt that a great deal of computational effort is required to search the optimum parameters of the TLCD, numerically. Therefore by linearization the equation of motion of the s...

In this paper the vibration behaviors of a structure equipped with a tuned liquid column damper (TLCD) under a harmonic type of earthquake loading are studied. However, due to inherent nonlinear liquid damping, it is no doubt that a great deal of computational effort is required to search the optimum parameters of the TLCD, numerically. Therefore by linearization the equation of motion of the s...

This paper investigates the optimized parameters for the tuned liquid column dampers to decrease the earthquake vibrations of high-rise buildings. Considering soil effects, the soilstructure interaction (SSI) is involved in this model. The Tuned Liquid Column Damper (TLCD) is also utilized on the roof of the building. Since the TLCD is a nonlinear device, the time domain analysis based on nonli...

The conventional optimal calibration of a TLCD for suppressing structural vibration is based on the classic 2-degrees-of-freedom (2-DOF) model in terms one specific mode (usually resonant mode). For flexible multi-degrees-of-freedom (MDOF) structures, this implies that background flexibility contribution from other non-resonant modes omitted, resulting an unbalance frequency response structure-...

Control of high-rise structures under seismic excitations was investigated using a passive hybrid control system consisting base-isolation (BI) subsystem and tuned liquid column damper (TLCD) system. Both the systems were optimized considering other in same structure. An optimization method developed, computer code written based on dynamic analysis structure metaheuristic methods. Within scope ...

In this Keynote Lecture, first a novel wavelet-hybrid feedback least mean square (LMS) algorithm is presented for robust control of civil structures through adroit integration of a feedback control algorithm such as the LQR or LQG algorithm, the filtered-x LMS algorithm, and wavelets. Next, a new hybrid control system is presented through judicious integration of a passive supplementary damping...

The purpose of this paper is to present a novel single tube semi-active tuned liquid gas damper (SA-TLGD) for suppressing horizontal vibrations tower-like structures and study its damping effectiveness. main difference the well-known state-of-the-art column (TLCD) special geometric shape developed SA-TLGD. Contrary TLCD, presented SA-TLGD only consists that partially filled with water. A large ...

This study targets the behavior of shear buildings equipped with tuned liquid column dampers (TLCD) which attenuate dynamic load-induced vibrations. TLCDs are a passive damping system used in tall buildings. This kind of damper has proven to be very efficient, being an excellent alternative to mass dampers. A dynamic analysis of the structure-damper system was made using the software DynaPy, de...

The tuned liquid multiple column damper (TLMCD) is a variation of the (TLCD) that includes vertical columns. A new damping system embeds TLMCDs within reinforced concrete shear wall systems, termed (TLWD), proposed, augmenting traditional structural component with energy dissipation capabilities. objective this study to assess mitigation and strength trade-offs in designing TLWDs demonstrating ...