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Showing 1 to 14 of 14 for “"floor vibration"”.
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Prediction of Floor Vibration Response Using the Finite Element Method
Several different aspects of floor vibrations were studied during this research. The focus of the research was on developing a computer modeling technique that will predict the fundamental frequency of vibration and the peak acceleration due to walking excitation as given in AISC Design Guide 11, …
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Energy-based Footstep Localization using Floor Vibration Measurements from Accelerometers
… dispersive medium (waveguide) using a network of vibration sensors (accelerometers), distributed at various locations in the waveguide, measuring (and detecting the arrival of) the impact-generated seismic wave. In particular, the last part of this document focuses on the problem of localizing …
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Floor Vibration Design Criterion For Cold-Formed C-Shaped Supported Residential Floor Systems
Annoying floor vibration due to normal human activity was investigated for cold-formed C-shaped residential floors systems. Dynamic impact and static loading tests were performed on twelve full size laboratory floors and five two-joist line laboratory floors to determine the influencing …
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Application of Magneto-Rheological Dampers in Tuned Mass Dampers for Floor Vibration Control
… (MR) dampers to mitigate annoying floor vibrations. Annoying floor vibration is becoming more common in today's building structures since building materials have become stronger and lighter; the advent of computers has resulted in "paperless" offices; and the use of floors for …
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The use of tuned mass dampers to control annoying floor vibrations
Floor vibrations due to occupancy activities on a floor are sometimes annoying to the occupants. Correcting floor vibrations is difficult and can be expensive. The use of tuned mass dampers to control annoying floor vibrations is sometimes a viable solution. Tuned mass dampers (TMDs) have been used …
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Vibration behaviour of pre-stressed precast hollow core floor with concrete topping thickness and boundary condition
… is renowned in construction, is prone to the floor serviceability issue, especially in floor vibration. The pre-stressed precast hollow core floor (PPHCF) in a four-storey office building was selected in performing an investigation on floor vibration regarding its properties. The PPHCF is …
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Vibration test and parametric study of concrete flooring system towards human comfort
In recent years, there has been an increase in floor vibration problems of structures such as residential and commercial buildings. Vibration is defined as one of the serviceability issues related to the human comfort. Human activities is the one of the factor vibration in buildings and vibrations …
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Vibration and Flexural Strength Characteristics of Composite Castellated Beams
… lightweight concrete and design optimizations, floor vibration problems are becoming a serious serviceability problem. The castellated beam is a prime example and was the focus of this study. The vibration and flexural strength performance were verified in this paper. The vibration …
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Control of human induced floor vibrations
With the growing demand for open, column-free floor spaces and the advances in material strength, floor vibration serviceability criterion has been of growing importance within the past 20-30 years. All floor systems are flexible and when introduced to a dynamic loading respond in a vibratory …
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Finite Element Modeling for Prediction of Low Frequency Floor Vibrations Due to Walking
Floor vibration serviceability is a primary design consideration for steel framed floors. Designers in North America typically use the AISC Design Guide 11 methods to check this limit state, but its methods are difficult to apply to atypical floor framing. Finite element analysis is a logical …
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Vibration characteristics of joist and joist-girder members
… steel beam and steel joist-concrete slab floor systems, floor vibration problems are becoming more and more prevalent. This paper presents the experimental and analytical study of the vibration characteristics of steel joist and joist-girder members. Three aspects were studied to prevent …
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Experimental and Analytical Study of Vibrations in Long Span Deck Floor Systems
… analytical research was conducted to address the vibration properties of Long Span Deck Floor Systems (LSDFS). The research comprised three stages. In the first part, experimental in-situ tests were conducted on thirteen bays of buildings under construction. The natural frequencies and …
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Using Magneto-Rheological Dampers in Semiactive Tuned Vibration Absorbers to Control Structural Vibrations
Since their invention in the early 1900s, Tuned Vibration Absorbers (TVAs) have shown to be effective in suppressing vibrations of machines and structures. A vibration absorber is a vibratory subsystem attached to a primary system. It normally consists of a mass, a spring, and a damper. Mounted to …
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Vibration Serviceability of Long Span Slender Floors
The modern trend towards long slender floors has led to major vibration serviceability issues in building floors under rhythmic loading. This happens as a result of reduced natural frequencies and damping ratios due to reduced structural rigidity (Devin et al, 2015). Even though these vibrations do …