A report format presentation of earthquake-resistance construction techniques, stressing upon the relevance of such techniques in the architecture industry.
A report format presentation of earthquake-resistance construction techniques, stressing upon the relevance of such techniques in the architecture industry.
Basic points on earthquake resistant building
- Design considerations and different techniques employed to resist building from collapse during earthquake
Prefabrication is the practice of assembling components of a structure in a factory or other manufacturing site, and transporting them to the construction site where the structure is to be located.
A presentation that explains the various systems and techniques of employing steel and concrete to support long span structures. The range varies from conventional beams, to trusses and portal frames.
Presentation on building bye laws as per GTU (syllabus) building & town planning.
It is my first presentation on slide share so please give suggestion on given topic or any other requirement.
Thank you.
Basic points on earthquake resistant building
- Design considerations and different techniques employed to resist building from collapse during earthquake
Prefabrication is the practice of assembling components of a structure in a factory or other manufacturing site, and transporting them to the construction site where the structure is to be located.
A presentation that explains the various systems and techniques of employing steel and concrete to support long span structures. The range varies from conventional beams, to trusses and portal frames.
Presentation on building bye laws as per GTU (syllabus) building & town planning.
It is my first presentation on slide share so please give suggestion on given topic or any other requirement.
Thank you.
The lecture is in support of:
(1) The Design of Building Structures (Vol.1, Vol. 2), rev. ed., PDF eBook by Wolfgang Schueller, 2016: chapter 4.
(2) Building Support Structures, Analysis and Design with SAP2000 Software, 2nd ed., eBook by Wolfgang Schueller: chapter 13.
Parametric Study for Wind Design of Vertical Pressure Vessel as per Indian St...IJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
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A seminar report on Wind-Induced Motion Of Tall Buildings. It was my final year seminar. It will be very helpful to understand the wind effects on tall building and the techniques to avoid the disaster. I have also uploaded ppt of same paper on slide share.
Criticality of Gust Pressures on the Members of Self Standing TowersIDES Editor
Tall latticed steel towers are being pursued for the
purpose of microwave transmission, T.V. transmission etc.
Antennas are fixed at the top of the tower for transmission.
The height of the towers may range from 50m to 250m. The
structural form consists of latticed steel work, suitable bracing
and suitable foundation for the tower legs. Usually bolted
connections are provided for the joints. Mainly dead and wind
loads are considered for the design of such towers. The I.S.
Code [8] has given recommendations for force coefficients to
be adopted while estimating the wind force. The force
coefficient depends on the solidity ratio. The design wind
pressure is multiplied by the effective frontal area and the
force coefficient to arrive at the wind force. The code is silent
on the method to be followed to determine the design wind
pressure. The latticed steel towers which have lesser self
weight relative to the height are highly flexible in nature and
under the action of the fluctuating wind the towers vibrate
and undergo large deflections or deformations. Hence the
study of wind-structure dynamic interaction becomes
necessary for accurate assessment of wind effects on towers.
The gust effectiveness factor takes into account the dynamic
properties of the structure, the wind-structure interaction and
then determines the wind loads as equivalent static loads. In
this paper, steel towers of heights ranging from 50m to 250m
are considered for wind load analysis. Wind loads are
determined based on static method as well as gust effectiveness
factor method. The critical gust loads for design are
determined. The variation of wind force with height, geometry
and the dynamic properties of the structure are studied. Based
on the above, important conclusions are drawn. The
conclusions will be useful for safe and rational design of
latticed steel towers.
Performance of High-Rise Steel Building With and Without BracingsIJERA Editor
A comparative study on performance of high-rise steel building with and without bracings, carried
out on a residential building by considering the gravity loads and lateral loads in the form of Earth quake loads
and Wind loads incorporating the Bracings to reduce lateral loads on structural elements. In this study, a 20
storey steel frame structure has been selected to be idealized as multi storey steel building model. The model is
analyzed by using STAAD.Pro 2008 structural analysis software with the consideration of wind and earthquake
loads. At the same time the influence of X-bracing pattern has been investigated.The building proposed in
designed by Limit State Method according to steel code IS: 800-2007, the Wind load analysis according to IS:
875-(part-3)1987 and seismic/Earth quake loads according to IS: 1893 (Part-1)-2002. In this study the node
displacements of buildings having with and without bracings of wind and earthquake effect of Zone II and
Zone V, and the axial force of the members of the buildings having with and without bracings of wind and
earthquake effect of Zone II and Zone V.
ANALYSIS OF WIND & EARTHQUAKE LOAD FOR DIFFERENT SHAPES OF HIGH RISE BUILDINGIAEME Publication
Modern tall buildings have efficient structural systems, and utilize high-strength materials, resulting in reduced building height, and thus, become more slender and flexible with low damping. These flexible buildings are very sensitive to wind excitation and earthquake load causing discomfort to the building occupants. Therefore, in order to mitigate such an excitation and to improve the performance of tall buildings against wind loads and earthquake loads, many researches and studies have been performed. Early integration of aerodynamic shaping, wind engineering considerations,
and structural system selections play a major role in the architectural design of a tall building in order to mitigate the building response to the wind excitations.
Study Effective of Wind Load on Behavior of ShearWall in Frame StructureIJERA Editor
Wind load is really the result of wind pressures acting on the building surfaces during a wind event. This wind
pressure is primarily a function of the wind speed because the pressure or load increases with the square of the
wind velocity.Structural walls, or shear walls, are elements used to resist lateral loads, such as those generated
by wind and earthquakes. Structural walls are considerably deeper than typical beams or columns. This attribute
gives structural walls considerable in-plane stiffness which makes structural walls a natural choice for resisting
lateral loads. In addition to considerable strength, structural walls can dissipate a great deal of energy if detailed
properly. Walls are an invaluable structural element when protecting buildings from seismic events. Buildings
often rely on structural walls as the main lateral force resisting system. Shear walls are required to perform in
multiple ways. Shear walls can then be designed to limit building damage to the specified degree. The loaddeformation
response of the structural walls must be accurately predicted and related to structural damage in
order to achieve these performance goals under loading events of various magnitudes. The applied load is
generally transferred to the wall by a diaphragm or collector or drag member. The performance of the framed
buildings depends on the structural system adopted for the structure The term structural system or structural
frame in structural engineering refers to load-resisting sub-system of a structure. The structural system
transfers loads through interconnected structural components or members. These structural systems need to be
chosen based on its height and loads and need to be carried out, etc. The selection of appropriate structural
systems for building must satisfy both strength and stiffness requirements. The structural system must be
adequate to resist lateral and gravity loads that cause horizontal shear deformation and overturning deformation.
The efficiency of a structural system is measured in terms of their ability to resist lateral load, which increases
with the height of the frame. A building can be considered as tall when the effect of lateral loads is reflected in
the design. Lateral deflections of framed buildings should be limited to prevent damage to both structural and
nonstructural elements. In the present study, the structural performance of the framed building with shear wall
will be analysis.
Dive into the innovative world of smart garages with our insightful presentation, "Exploring the Future of Smart Garages." This comprehensive guide covers the latest advancements in garage technology, including automated systems, smart security features, energy efficiency solutions, and seamless integration with smart home ecosystems. Learn how these technologies are transforming traditional garages into high-tech, efficient spaces that enhance convenience, safety, and sustainability.
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2. Introduction
Wind is essentially the large scale Horizontal
movement of free air. It plays an important role in
design of tall structures because it exerts loads on
Building.
High Rise Building-
A building Having height more then
15m As per National Building Code 2005 of India is
called High Rise Building.
Imperial Tower 1(254m)
Ref- Wikipedia
3. What is Wind?
Wind means the motion of air in the atmosphere.
The response of structures to wind depends on
the
characteristics of the wind.
4. Causes of Wind-
Wind is caused by air
flowing from high
pressure to low pressure.
Since the Earth is rotating,
however, the air does not
flow directly from high to
low pressure, but it is
deflected to the right (in the
Northern Hemisphere; to
the left in the Southern
Hemisphere), so that the
wind flows
mostly around the high and
low pressure areas.
5. Variation of Wind Velocity with
Height-
Near the earth’s surface, the motion is
opposed, and the wind speed reduced,
by the surface friction. At the surface,
the wind speed reduces to zero and
then begins to increase with height,
and at some height, known as the
gradient height, the motion may be
considered to be free of the earth’s
frictional influence and will attain
its ‘gradient velocity’.
Gradient Height 300 m for flat ground
& 550 m for very rough terrain
6. How wind force governing for tall structure?
with increase height of building
•Construction cost per unit area decrease
•Increasing lightness in weight per unit area
•More danger against high velocity of wind force
at high level.
8. Wind Effects on Structures
Wind effects on structures can be classified as
‘Static’ and ‘Dynamic’.
Static-
Static wind effect primarily causes
elastic bending and twisting of structure.
Dynamic
For tall, long span and slender structures a
‘dynamic analysis’ of the structure is essential.
Wind gusts cause fluctuating forces on the
structure which induce large dynamic motions,
including oscillations.
11. Determination of Wind Loads as per IS 875 (Part 3)
Physical parameters-
•Length : 17m
•Width : 13m
•Height : 20.5m
•Height of each storey : 3m
Wind Data-
•Wind Zone : 2(Basic wind Speed= 39m/s For
Raipur)
•Terrain Category : 3
•Class of Structure : A (Since Max. Dimension is less
then 20m)
•Topography : Flat that is upwind slope <3 °
•Life of Structure : 100 Years
3d Model By
12. Design wind speed –
Vz=Vb.K1.K2.K3
Vz = Design wind speed at any height z in
m/s;
K1= Probability Factor (K1=1.06 For
Important Buildings of Life 100 years)
K2= Terrain, Height and Structure size
factor (Varies for Height)
K3= Topography Factor)
27. Main Conclusions
In the Static Analysis of the RCC Building the
comparison has been made in two cases in first case without
considering the wind load and Considering the wind load in
second case. Results from SAP2000 Shown that the Bending
moment and shear Force increase due to wind load hence
wind load governing factor for design of High rise building .
