Vijay Sminar Report on Perforated Web

7/28/2019 Vijay Sminar Report on Perforated Web

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A

SEMINAR

ON

FINITE ELEMENT ANALYSIS OF STEEL BEAM WITH

PERFORATAD WEBS

BY

Er. VIJAY S. MORE

SEMINAR GUIDE

DR.M.R.SHIYEKAR


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CONTENT

Introduction Web opening

Type of web opening

Perforated web beam

Fabrication of Perforated web beam

Advantage

Failure

Finite Element Literature review

Aim


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INTRODUCTION

The responsibility of a Structural Engineer lies in notmerely designing the structure based on safety and

serviceability considerations but he also has to consider

the functional requirements based on the use to which

the structure is intended.

A multi-storied building, the traditional structural steel

framing consists of beams and girders with solid webs.

Pipelines and air conditioning ducts, electrical wiring

required for satisfactory functioning for which the

structure is put up.

Providing web opening beam


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WEB OPENING

There are no hard & fast rule to dictate theshapes of the opening

Increasing stiffness of steel members without any

increasing in the weight of steel requird

the reduction in shear capacity at the opening can

be significant.


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TYPE OF WEB OPENING

A. CIRCULAR OPENING

B. REGULAR HEXAGONAL OPENING

C. VERTICAL ELLIPSEG. INCLIND ELLIPSE

H. SQUARE OPENING

I. ELONGATED CIRCULAR OPENING

J. RECTANGULAR OPENING

K. ULTIMATE ELONGATED CIRCULAR OPENING


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PERFORATED WEB (CIRCULAR

OPENING)

IN 1940s

MATERIAL & FINANCIAL SAVING,LIGHT WEIGHT.

THE EVOLUTION OF WEB PERFORATED BEAM BY BRITISH

COMPANY WESTKO

SIZE OF OPENING do =0.8h,0.65h,0.5h.


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FABRICATION OF PERFORATED WEB

BEAM

THE BEAM CAN BE FABRICATED USING CAD/CAM SUPPORTED FLAM OR

PLASMA-CUTTING

USING THE PROFILE CUTING METHOD


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ADVANTAGAE It is aesthetically higher standard structures and

fitting well to High-Tech trends.

By default material, transportation, lifting,assembly,

galvanization, surface treatment, and fireproofingcosts are reduced.

The effect is that the overall building height is red

uced,

Long span beams have the advantage of flexibility of internal planning by limiting the numberof columns resulting in savings in the number

of foundations and in speed and cost of ere


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FAILURE

WEB POST BUKLING

FORMATION OF PLSTIC HINGE


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FINITE ELEMENT

THE FE MODAL USING BOTH GEOMETRICAL(BUKLING)& MATERIAL NON-LINEARITY

(PLASTIC BEHAVIOUR)

TO ANALYZE THE BEHAVIOR OF

PERFORATED WEB STEEL BEAMS HAVING

AN I-SHAPED CROSS-SECTION, MODELING ISCONDUCTED USING FINITE ELEMENT

SOFTWARE PACKAGE ANSYS11.


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LITERATURE REVIEW

As reported by Bower 1968, Redwood and 1968,Lawson 1987; Darwin 1990; Redwood and Cho

1993; Bradford 1995, the presence of web

openings may have a severe penalty on the load

carrying capacities of structural members,depending on the shapes of the web openings.

In the latter case, the web-post buckling failure

modes will dominate (Tsavdaridis and DMello

2011).


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AIM

LIGHTGEAG TRUSSTRUSS


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THANK YOU

Vijay Sminar Report on Perforated Web

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