Abstract
Studies on novel composite structures that can decrease floor height and improve constructional efficiency in order to increase spatial efficiency and lease revenue have been actively conducted. An innovative fire-proof, lightweight, absorbed, shallow, and hybrid (iFLASH) system was developed to solve construction site issues, such as improving constructability, reducing construction time, and attaining structural efficiency by reducing the weight of the building structure. This system can shorten the construction duration and decrease the floor height and structural weight, owing to features such as a low thickness and light weight. However, studies on the vibration characteristics of this new floor system have not been performed yet. As the general thickness of the iFLASH system ranges from 25 to 30 mm, it must have a sufficient floor vibration performance in order to be utilized. To evaluate the floor vibration performance of the iFLASH system, an experiment was performed in two buildings where the system was applied. This paper presents the results of the dynamic characteristics and serviceability testing as basic data for the vibration characteristics of the iFLASH system.
Highlights
High-rise buildings are increasingly defining the architecture of modern society due to an increase in the urban population and facility intensification
This study mainly investigated the vibration characteristics of the renovation module of the widely used in the USA and Australia had many partition walls connected to the ceiling height; a screw iFLASH system
In order vibration characteristics according to thetoconstruction stage, this study investigated the effect of theofbond of members and, this study investigated the effect the bond of members finishing materials on the natural frequency and damping ratio at the various construction phases of and finishing materials on the natural frequency and damping ratio at the various construction phases actual buildings of actual buildings
Summary
High-rise buildings are increasingly defining the architecture of modern society due to an increase in the urban population and facility intensification. This study investigated the vibration characteristics of a novel floor system that attains structural efficiency by improving constructability, shortening the construction duration, and reducing. This performance, is possible because has asystem lower density than high bending resistance and reduced self-weight. This is possible because it has a lower density than conventional structural materials. This nano-composite is a type of polymer classified as a polyurethane conventional structural materials. This nano-composite is a type ofnew polymer classified as a3 ; that is produced with a diisocyanate–polyol mixture The density of this material is 1178 kg/m polyurethane thatproperties is produced withmaterial a diisocyanate–polyol mixture. Thetodensity of this newstrain material other mechanical of this are listed in Table
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