The document discusses different types of frame structures used in construction including post and lintel, simple frame, multiple frame, concrete frame, steel frame, and wooden frame structures. It defines key terms like tension, compression, bending, and shear. It provides examples of different frame structures and outlines their advantages and uses.
Basic beam column structure construction and examples and lastly shell structure in short.
Rafiq azam buildings.Richerd Mier, Le Corbusier, Tadao Ando residences.
Bangladesh Liberation War museum
Sydney opera house
Basic beam column structure construction and examples and lastly shell structure in short.
Rafiq azam buildings.Richerd Mier, Le Corbusier, Tadao Ando residences.
Bangladesh Liberation War museum
Sydney opera house
Arch is a curved structure designed to carry loads across a gap mainly by compression. The mechanical principle of the arch is precisely the same as that of the portal frame. The straight pieces of material joined by sharp bends are smoothed into a continuous curve. This increases the cost of construction but greatly reduces the stresses.
For more detail on Arch Systems and architecture engineering,
visit us - www.archistudent.net
Follow us - https://www.facebook.com/Archified-162820443787915/
a space frame or space structure is a rigid, lightweight, truss-like structure constructed from interlocking struts in a geometric pattern. Space frames can be used to span large areas with few interior support
An introduction to Arches:-- It explains the basic understanding about Arches before students start drafting in their drawing sheets. This presentation could be shown to first year B.Architecture students to make them a clear idea about Arches.
Arch is a curved structure designed to carry loads across a gap mainly by compression. The mechanical principle of the arch is precisely the same as that of the portal frame. The straight pieces of material joined by sharp bends are smoothed into a continuous curve. This increases the cost of construction but greatly reduces the stresses.
For more detail on Arch Systems and architecture engineering,
visit us - www.archistudent.net
Follow us - https://www.facebook.com/Archified-162820443787915/
a space frame or space structure is a rigid, lightweight, truss-like structure constructed from interlocking struts in a geometric pattern. Space frames can be used to span large areas with few interior support
An introduction to Arches:-- It explains the basic understanding about Arches before students start drafting in their drawing sheets. This presentation could be shown to first year B.Architecture students to make them a clear idea about Arches.
This is a Power Point Presentation discussing briefly about the Slab, Beam & Column of a building construction. It was presented on 6th March, 2014 as part of the Presentations of the subject: DETAILS OF CONSTRUCTION, at Ahsanullah University of Science & Technology (AUST)
Video Lecture: https://youtu.be/zoj6DYMvg2I
Structural System in High Rise building or Tall Building
Emporis standards-
“A multi-story structure between 35-100 meters tall, or a building of unknown
height from 12-39 floors is termed as high rise.
The International Conference on Fire Safety –
"any structure where the height can have a serious impact on evacuation“
Massachusetts, United States General Laws –
A high-rise is being higher than 70 feet (21 m).
Buildings higher than 100m is termed as skyscraper according to emporis.
Buildings 300m or higher is termed as super tall and buildings 600m or taller is termed as mega-tall.
OUTLINE
introduction
classification
loads
materials used
Type of reinforcement
RCC
construction methods in RCC
Analysis and design
Detailing
Basic Rules
Site visit
video
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.
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3. TENSION: Tension is a state of Stress in
which particles of material are tend to pull
apart. For example a steel cable pulling
or lowering an elevator tends to pull a
part by the weight of elevator.
Lengthening is typical of tension. And the
elongation of a unit length of cable is
called its tensile strain.
COMPRESSION: Compression is a state of
stress in which particles of the material are
pushed one against the other. For
example a column supports a load is
under compression, its height shortens
under load. The shortening of a unit
length or compressive strain is
proportional to the load applied unit area
of the column or compressive stress
4. SIMPLE BENDING: The state in which a stress
varies as a straight line from a maximum tension
to maximum compression is called simple
bending
SHEAR: The sliding action of particles relative to
each other in state of stress.
One of the essential characteristic of
Shear is that it produces sliding action between
two planes that are always at right
Angle to each other. Punch hole machine is an
Example of shear force.
5. FRAME STRUCTURE
Initially there was no distinction between the
supporting structure and the protecting skin. However
separation of supporting and protecting function
leads to the framed system.
A framed system may be defined as
“A framed structure in any material is one that is made
stable by a skeleton that is able to stand by itself as a
rigid structure without depending on floors or walls to
resist deformation. ”
Materials such as wood, steel, and reinforced
concrete, which are strong in both tension and
compression, make the best members for framing.
6. POST & LINTEL SYSTEM
Post-and-lintel system, in building construction
is a system in which two upright members, the
posts, hold up a third member, the lintel, laid
horizontally across their top surfaces.
The lintel is a beam that is simply supported on
a posts and it carries the roof load. The
material used for lintel should have strong
tensile and compressive strength
While the posts are vertical struts compressed
by the lintels. The materials for post should
have strong compressive strength.
The post must also resist some horizontal loads,
such as the wind pressure; this resistance
comes from a bending capacity in case of
wooden and steel posts and from their own
weight in stone and masonry piers.
7. The foundation of the post carry roofs and the post loads to the ground by means
of footings in any case the posts and the foundation are under compression;
characteristic of post and lintel system.
Post and Lintel System may be built one over another to frame multistory buildings;
In this case the lintels are supported by vertical columns or wall of masonry as high
as entire building.
Construction of this type for multistory building can not resist horizontal loads and
easily damaged by hurricane and earthquakes due to low bending resistance of
stone and masonry.
Strong connection between horizontal and vertical member is not easily built.
All the members of post and lintel system act independently although connected
together.
8. EXAMPLES OF POST AND LINTEL SYSTEM
From prehistoric times to the Roman Empire, the post-and-lintel system was
the root of architectural design. The interiors of Egyptian temples and the
exteriors of Greek temples are delineated by columns covered by stone
lintels. The Greeks opened their interior spaces by substituting wooden
beams for stone, since the wood required fewer supports.
StonehengePARTHENON
9. SIMPLE FRAME STRUCTURE
The action of the post and lintel system changes substantially, if a rigid connection is
developed between the lintel and bending resistant posts.
This structure behaves monolithically and is more stronger to horizontal loads and
vertical loads.
This structure system is called single bay rigid frame or simple frame.
Three consequences arises when we rigidly connect the horizontal member with the
vertical ones
1. The beam will restrained its end and will become more rigid and would be capable of
supporting heavier loads.
2. The columns are not only subjected to compressive loads and their own loads but also to
the bending stresses due to continuity with the beam.
3. A new horizontal force would be required to maintain the frame in equilibrium under vertical
loads. ( The thrust that bring back the columns to their vertical position).
A thrust may be provided by a tie rod that does not allow the frame to open up.
10. SIMPLE FRAME STRUCTURE
Frames are stronger against vertical loads
than post and lintel system and are more
advantageous in resisting lateral loads.
A post loaded by horizontal load acts as a
single cantilevered beam while in frame
structure horizontal member transfer the
lateral load from wind ward column to lee
word column.
By this way deflection and bending stresses
are reduced.
11. MULTIPLE FRAMES
The advantage of continuity can be compounded
by the use of multiple frames in which a horizontal
beam is rigidly supported by 3 or more columns. It is
also called multiple bay frame.
Theoretically the two outer columns need to be tied
but practically some mean should also be provided
to take care of un even loading.
Multiple frames are efficient in absorbing lateral
loads. The rigidity of beams against compressive
loads makes the lateral deflection of all columns
identical; Hence the lateral loads are beard by all
columns of the frame.
The multiple frames are used to span large areas as
they areas and are often used at he outer side of
building to resist lateral loads
12. Types of Frames (Simple/ Multiple)
RIGID STRUCTURAL FRAME: the word rigid
means ability to resist the deformation. Rigid
frame structures can be defined as the
structures in which beams & columns are
made monolithically and act collectively to
resist the moments which are generating due
to applied load. Rigid frame structures
provide more stability. This type of frame
structures resists the shear, moment and
torsion more effectively than any other type
of frame structures. That's why this frame
system is used in world's most astonishing
building Burj Al-Arab.
13. BRACED FRAME STRUCTURE: In this
frame system, bracing are usually
provided between beams and
columns to increase their resistance
against the lateral forces and side
ways forces due to applied load.
Bracing is usually done by placing
the diagonal members between the
beams and columns. This frame
system provides more efficient
resistance against the earthquake
and wind forces. This frame system is
more effective than rigid frame
system
14. CONCRETE FRAME STRUCTURES
Concrete frame structures are a very common
- or perhaps the most common- type of
modern building.
this type of building consists of a frame or
skeleton of concrete. Horizontal members of
this frame are called beams, and vertical
members are called columns. Humans walk
on flat planes of concrete called slabs.
the column is the most important, as it is the
primary load-carrying element of the building.
If you damage a beam in a building, it will
usually affect only one floor, but damage to a
column could bring down the entire building.
When we say concrete in the building trade,
we actually mean reinforced concrete. Its full
name is reinforced cement concrete, or
RCC. RCC is concrete that contains steel bars,
called reinforcement bars, or rebar. This
combination works very well, as concrete is
very strong in compression, easy to produce at
site, and inexpensive, and steel is very strong in
tension
15. STEEL FRAME STRUCTURE
Most steel construction is done with a type
of steel called mild steel. Mild steel is a
material that is immensely strong.
The other important feature of steel framing
is its flexibility. It can bend without cracking,
which is another great advantage, as a
steel building can flex when it is pushed to
one side by say, wind, or an earthquake.
when subjected to great force, it will not
suddenly crack like glass, but slowly bend
out of shape.
one important property of steel is that it
quickly loses its strength in a fire. At 500
degrees Celsius (930 degrees F), mild steel
can lose almost half its strength. This is what
happened at the collapse of WTC in 2001.
16. Steel construction is most often used in
High rise buildings because of its strength, low weight, and speed of construction
Industrial buildings because of its ability to create large span spaces at low cost
Warehouse buildings for the same reason
Residential buildings in a technique called light gauge steel construction
Temporary Structures as these are quick to set up and remove
17. ADVANTAGES OF STEEL STRUCTURES
Steel structures have the following advantages:
They are super-quick to build at site, as a lot of work can be pre-fab at the factory.
They are flexible, which makes them very good at resisting dynamic (changing)
forces such as wind or earthquake forces.
A wide range of ready-made structural sections are available, such as I, C, and
angle sections
They can be made to take any kind of shape, and clad with any type of material
A wide range of joining methods is available, such as bolting, welding, and riveting
18. WOODEN FRAME
Light wooden framed construction is one of the most popular types of building
methods for homes in the United States and parts of Europe.
It has the following characteristics:
It is light, and allows quick construction with no heavy tools or equipment. Every
component can easily be carried by hand - a house essentially becomes a large
carpentry job. The main tool is a handheld nail gun.
It is able to adapt itself to any geometric shape, and can be clad with a variety of
materials.
There are a huge variety of products and systems tailored to this type of
construction.
It has these negative characteristics:
It is not highly fireproof, as it is made of wood.
It is not strong enough to resist major wind events such as tornadoes and hurricanes.