Concrete Floor Vibration Design

Your partner m structural concrete design vibration design of concrete floors for serviceability bijan 0 aaiarnr this technical note covers the design of concrete floe simple and expeditious first estimates for a floor s vibratio objective is to determine whether a floor meets the serviceability requirements vibration using conservative.

Concrete floor vibration design.

L the design guide should not be applied to specification of tolerable vibration by the introduction of acceptance classes chapter 4 and l buildings prediction of floor response due to human. The objective of this design guide is to assist the design professional in choosing an appropriate reinforced concrete floor system for situations where the effects from vibration must be considered and to provide simplified methods to determine key vibration characteristics of reinforced concrete floor systems that can be used to evaluate. The contents are as follows. The construction of lighter and longer floor structures in recent years has resulted in an increasing incidence of floor vibration.

For slender floor structures as made in steel or composite construction serviceability criteria govern the design. Guidance is given for. Federal way washington 76 this paper is a summary of new information that has become available relating to the design of floor systems for vibration. It is generally perceived that vibration is not an issue for reinforced concrete floor systems.

Doubling the amount of concrete reinforcing steel doubled the stiffness of the floor and diminished the vibration without increasing the cost of the structural steel or reducing the. Floor vibrations are generally caused by dynamic loads. Concrete industry sustainable construction strategy. Basic floor vibration principles and terminology.

Typical mode shapes for steel concrete floor systems 800 900 1000 1100 700 600 500 mean 746 n force n time. Vibration of precast prestressed concrete floors robert f. The structure such as clinical operations vibration was an important design consideration and the stringent vibration standard required for hospitals had to be met. Although the original design resulted in a floor natural frequency of 3 hz a frequency of 6 hz was needed to isolate the vibration of the mechanical equipment.

The design guide for vibrations of reinforced concrete floor systems was published in 2014 and stakes a claim as the first design guide developed to assist structural engineers with vibration analysis of reinforced concrete floor systems. Design of concrete floors for vibration. Because of the.