Structures, civil engineering

1. ADITHYAINSTITUTE OF TECHNOLOGY
COIMBATORE - 107
ST4312- Project work - Phase I
STUDY ON STRUCTURAL BEHAVIOUR OF COMPOSITE
BEAMS STRENGTHENED BY A SHEAR CONNECTOR
Guided By
Mr
.M.Perarasan, M.E(Ph.D)
Assistant Professor
Adithya Institute of Technology
Presented By
Prabhu D M
(710121413009)
Dept of Structural Engineering
Adithya Institute of Technology

2. INTRODUCTI
ON
 A composite section is one which consists two or more materials connected
together to act as a single element.
 .The most commonly used composite section in structures is the steel-concrete
composite section.
 In steel concrete composite section, steel is used in tension zone and concrete
used in compression zone.
 The use of composite section in civil engineering structure is gaining much
importance nowadays owing to these advantages over conventional steel and
concrete section .

3.  Steel concrete composite construction particularly for multi storey steel
frames, have achieved high market share in several countries, mainly due to
reduction in cross sectional dimensions, saving in convectional steel reinforcement,
rapid construction and other many advantages.
 The connection is necessary to make steel and concrete section act as single
composite element and to induce composite action .
 The mechanically device called shear connector are used to install the
connection between steel concrete.

4. OBJECTIVE
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 To explain the concept of composite construction in experimental oriented
 The two complementary materials, structural steel and reinforced concrete are
introduced with various steel sections
To explain the composite action of the two different materials and to show how the
structural members are behaved, particularly in construction field
 To gave a comparison results of conventional beam and composite beams.
 To determine the maximum compression strength and the structural aspects like
bending moment, deflection, shear force

5. SCOPE
 To enhance the properties of the building compound elements
In composite slab which can reduce the floors deflection &
vibration and achieve the necessary fire protection & thermal storage
In composite column the space of area is reduced.
The composite materials are joined by joint keys (studs) for the
purpose of shear connection. Composite construction refers to two
load carrying structural members that are
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 The main benefits of composite elements is that the properties of each materials can
be combined to form a single unit that performs better overall than its separate
constituent part.



1. Integrally connected 2.Deflect as single unit

6. LITERATURE
SURVEY:
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Wonchang choi(1) (2018), This study intends to improve the efficiency of the
composite beam combining a slab made of steel fiber-reinforced ultrahigh
performance concrete (UHPC) and a steel girder without top flange. To that goal, the
experiment is conducted on 24 composite beams fabricated with varying compressive
strength of UHPC, steel fiber content, stud spacing, and slab thickness to evaluate the
behavior of the studs and the flexural behavior of the composite beam combining the
UHPC slab and the inverted-Tsteel girder.
The experimental results show the test members developed sufficient ductile
behavior with respect to the slip limit of 6mm stipulated in Eurocode-4 and regardless
of the considered test variables. experimental ultimate horizontal shear force is seen to
be clearly larger than the static strengths of the stud predicted by Eurocode-4 and
AASHTO-LRFD. Improved design formulae for the composite beam shall be derived
to reflect the UHPC slab thickness.

7. Ajinkya D Ruthe(2) (2018), The design of buildings is basically done with
concrete and masonry. Reinforced concrete and steel materials are mostly used in
framing structure of the building. Reinforced Concrete Structures are mostly used in
low rise building but for medium, to high rise building as it is no longer economical &
efficient design concept. Thus, this created the challenge for structural designers for
making the economical construction for multi-storey buildings.
Hence the use of composite structures in a multistory building has gained the
attention of structural engineers to improve the overall performance of the building.
Thus, composite construction has gained importance over simple RCC and Steel
construction of buildings
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8. Silvana De Nardin(3) (March-2016), Steel–concrete composite structures are
now increasingly used in Brazil and are the subject of significant research by the
country’s leading universities. This paper summaries the typology, state of the art and
usage of steel–composite structures from a Brazilian perspective.
It presents the concepts, definitions and design philosophy for basic structural
elements, including composite slabs, beams and columns, and also for various types of
connections. Summaries of the extensive research findings are presented for each
composite element.
The paper concludes with a call for all the research results to be condensed into a
single design manual, which in turn will help Brazil’s fast growing construction
industry take full advantage of the benefits of composite construction techniques.
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9. SUMMARY OF
LITERATURE REVIEW
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 Composites indeed have lower density than most materials while usage of
composite structures production cost is reduced. Composite may be made
by a wide range of process.
 Composite offer excellent resistance to chemical attack, corrosion, and
outdoor weathering
 The time taken for the installation, is shorter compare to timber
flooringsystem. The floor depth reductions can be achieved using composite
construction.
 Composite materials permits aero-elastic tailoring of structural components.
 Speed and simplicity of construction faster to erect, nearly 25% faster than
traditional construction.

10. METHODOLOGY
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11. 11
MATERIAL USED
 CEMENT
 FINE AGGREGATE
 COARSE AGGREGATE
 REINFORCEMENT
 SHEAR CONNECTOR
 STEEL SECTIONS