دانلود Deflection Control in Composite Building by using Belt truss and Outriggers System

Abstract

The design of high-rise building is more often dictated by  its  serviceability  rather  than  strength.  Structural  Engineers  are always striving to overcome challenge of controlling lateral deflection and storey drifts as well as self weight of structure imposed on foundation. One  of  the  most  effective  techniques  is  the  use  of  outrigger  and belt  truss  system  in  Composite  structures  that  can  astutely  solve  the above two issues in High-rise constructions.  This  paper  investigates  deflection  control  by  effective  utilization of belt truss and outrigger system on a 60-storey composite building subjected to wind loads. A three dimensional Finite Element Analysis is performed with one, two and three outrigger levels. The reductions in lateral deflection are 34%, 42% and 51% respectively as compared to  a  model  without  any  outrigger  system.  There  is  an  appreciable decline  in  the  storey  drifts  with  the  introduction  of  these  stiffer arrangements.