PARAMETRIC STUDIES ON TUNED LIQUID DAMPER (TLD) USING CIRCULAR CONTAINERS BY FREE-OSCILLATION EXPERIMENTS

Experiments on the periodic oscillation of free containers driven by liquid sloshing

Experiments on the time-periodic liquid sloshing-induced sideways motion of containers are presented. The measurements are compared with finite-depth potential theory developed from standard normal mode representations for rectangular boxes, upright cylinders, wedges and cones of 90◦ apex angles, and cylindrical annuli. It is assumed that the rectilinear horizontal motion of the containers is f...

Experimental Study on Using Uniform Tuned Liquid Column Damper for Structural Control of Buildings Resting on Loose Soil

In this study, through series of shaking table tests and statistical analysis, the efficiency of Uniform Tuned Liquid Column Damper (UTLCD) in structures resting on loose soils, considering soil-structure interaction was investigated. The soil beneath the structure is loose sandy soil. The Laminar Shear Box (LSB) as a soil container was adopted and the scaled form of the prototype structure nam...

Comparative Performance Study of Tuned Liquid Column Ball Damper for Excessive Liquid Displacement on Response Reduction of Structure

The tuned liquid column damper (TLCD) having a uniform cross-sectional tube of U-shaped, occupied with liquid is used as a vibrational response mitigation device. The tuned liquid column ball damper (TLCBD) is a modified TLCD, where, an immovable orifice, positioned at the middle part of the horizontal portion, is replaced by a metal ball. Different studies on the unconstrained optimization per...

Studies on the Application of Tuned Liquid Dampers (TLD) to Up-Grade the Seismic Resistance of Structures

بررسی اثرات استفاده از میراگر مایع هماهنگ شده ‏‎(tuned liquid damper-tld)‎‏در کاهش پاسخ لرزه ای سازه های چند درجه آزادی

از اوائل دهه اخیر، سیستم کنترل غیرفعال جدید در زمینه کاهش ارتعاشات سازه ها مطرح شده که میراگر مایع هماهنگ شده ‏‎(tuned liquid damper)‎‏ یا اختصارا ‏‎tld‎‏ نامیده می شود. اساس کار آن بر مبنای استهلاک انرژی وارده به سازه (ناشی ازدیاد، زلزله و...) توسط تلاطم مایع کم عمقی در درون یک یا چند مخزن است که در بالای سازه نصب می گردد. عمق ولزجت مایع و همچنین ابعاد و تعداد تانکها به منظور رسیدن به درصد است...