Practical Modeling of Composite Slab Floor Systems With Dominant Slab Mode For Vibration Control

Open Access
Author:
Kreidel, Shaun
Graduate Program:
Architectural Engineering
Degree:
Master of Science
Document Type:
Master Thesis
Date of Defense:
April 10, 2014
Committee Members:
  • Linda Morley Hanagan, Thesis Advisor
Keywords:
  • Finite Element Modeling
  • Floor Vibration Control
  • SAP2000
  • ASCE Design Guide 11
Abstract:
Design Guide 11 (Murray, T.M., et al. 1997), the most current design aid published by AISC (The American Institute of Steel Construction), provides engineers with basic principles and methods to evaluate floor vibration serviceability of steel framed floors. This design guide also presents acceptable serviceability limits based on the type of occupancy and fundamental natural frequency. Design Guide 11; however, limits itself to very simple, steel framed structures with typical rectangular bays in its discussions and examples. There is little published information that explores the floor vibration evaluation procedures of more complex floor system utilizing such tools as finite element models. Further there is little information to evaluate long span slab structures that have the potential for a dominant slab mode. Using the examples presented in Design Guide 11 as a base for the investigation, finite element modeling guidelines were created that can be used to yield an output that agrees with the Design Guide 11 solutions. These same finite element modeling guidelines were applied to a real steel framed structure with in-situ test data available. The structure investigated as part of this thesis utilizes a long span composite slab system. From the modeling output achieved from the finite element investigation of this structure, confidence in the modeling guidelines is further strengthened. The results of this thesis could prove helpful and instructive for practicing engineers in the prevention of unwanted serviceability vibration issues for this type of structural system using both computer software and manual calculations.