INTRODUCTION.pptx

OPTIMAL STUCTURAL DESIGN OF
DIAGRID STUCTURE FOR TALL
STUCTURE
PRESENTED BY;
MARIYAM SWALHA P
NESEEHA SAMAD
SALIH NOUSHAD
SHIJI KP
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INTRODUCTION
 A diagrid is frame work of diagonally intersecting metal,
concrete or wooden beams.
 The most commonly used and efficient material for
constructing diagrid is steel.
 Improve aesthetic view of building.
 Use of diagrid reduces the steel up to 20 %
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 When glass is used with the diagrid, it allows light inside the
structure.
 The diagrid structures are column free structures.
Fig.1 Diagrid structure
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OBJECTIVES
 Modelling and analysis is carried out using ETABS.
 To study the structural behaviour of both digrid and braced
tube structure .
 Seismic and wind analysis in both structures.
 Analysis of rectangular, square, circular configurations.
 Study and compare parameters like story drift, base shear,
story displacement.
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METHODOLOGY
 Preparing model of both Braced Tube structure and Diagrid
Structures with Circular, Square and Rectangular plan
 Considering 3 configurations;
 Rectangular
 Circular
 Square
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 Keeping plan area and all structural data same for three plans,
wind analysis and earthquake analysis is carried out.
 Storey displacement, story drift and base shear were then
obtained after analysis.
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LITRATURE REVIEW
Optimal Structural
Design Of Diagrid
structure for Tall
Structure
Analysis and Design of
Structural System for
high rise steel buildings
Performance evaluation
of tall buildings with
steel diagrid system
Chittaranjan
Nayak,Sneha Walke
Jani,K Patel
Thomas,F.M. Issac
In this work, the structure is inserted as a
pole and separated by modules as a diagrid
pattern. These modules are distributed
evenly across the total number of issues.
In this paper the authors describe the
framework for assessing the issues of '' area
'' in the construction of tall diagrid
buildings, and then present a method for
determining the need for a particular
secondary bracing system (SBS) as a
diagrid geometry function.
The purpose of this work is to explore
different behavior parameters of unequal
structures by analyzing and modeling
different floor structures using three
consecutive analysis methods (Spectrum
Response Method) using ETABS Software.
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CONCLUSION
 From above results from earthquake and wind analysis ;
 In braced tube structure, circular plan performs better
than square and rectangular plan.
 In diagrid structure this square plan performs better than
circular and rectangular plan.
 While comparing both two structures diagrid structures
performs better than braced tube structure.
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INTRODUCTION.pptx

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