Reinforced concrete is well-suited for constructing stairs due to its fire resistance, durability, strength, and pleasing appearance. R.C.C. stairs can be designed in various forms including straight flights, inclined slabs with half landings, string beams, cranked slabs, cantilevers, and spirals. The type of stair adopted depends on the space and loading conditions. Common stair arrangements include single straight flights, inclined slabs spanning longitudinally, string beams with horizontal slab spanning, cranked slabs inducing bending and torsion stresses, cantilever stairs with central supporting walls, and spiral or helical stairs used in prestige buildings.
A short and elaborate Case Study on High Rise Buildings for the course of Advanced Building Construction from students of 8th Semester Architecture at VNIT, Nagpur (January- April 2017)
Prefabricated Structure and its installation processUdayram Patil
Construction industry is growing day by day, whereas free space for material is reducing dayby day. Prefabricated structure provide a way through. Prefabrication is method in which structural members are built at industry and then transferred to site.
A short and elaborate Case Study on High Rise Buildings for the course of Advanced Building Construction from students of 8th Semester Architecture at VNIT, Nagpur (January- April 2017)
Prefabricated Structure and its installation processUdayram Patil
Construction industry is growing day by day, whereas free space for material is reducing dayby day. Prefabricated structure provide a way through. Prefabrication is method in which structural members are built at industry and then transferred to site.
Tube structures and its type with comparison .Udayram Patil
Hollow tube section always provide greater strength. So the same concept is applied to the building. Tubed system is designed to act like a three dimensional hollow tube structure which result in increased load resistance .
Study of Folded Plates for understanding their use, types, technology along with suitable case studies. This is a specific type of Methodology adopted for construction over long spans column free spaces. How structurally Folded plates surpases the need of column grids and conventional methods of construction with the proper design and technology is the motive of this study.
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
It includes various supports requirement for the formwork, introduction to scaffolds and failure, design of vertical supports of formwork, forces acting on shore
CERAMIC AND SCULPTURE WORKSHOPSite Visit ReportAbhishek Mewada
CLAY: Natural rock or soil which is fine grained and contain silica , alumina , organic matter.
Types : Earthenware , Stoneware, Porcelain.
CLAYBODY : Consist of different materials like silica , clay , fluxes , grog.
Types : Earthenware , Stoneware , Porcelain.
Vastupurusa
For the basis of Hindú architecture often reference is made to Vastupurusa or “the spirit of the site”. One legend explains this as follows. There was an evil demigod (bhuta) who was born during Siva’s fight with the Asur Andhaka. This bhuta possessed a terrifying countenance and an insatiable hunger. The legend goes that having done great penance, the bhuta won a boon from Siva that allowed him to swallow the three worlds that constitute the Hindu cosmos. As this being stretched himself and began to occupy the heavens, he fell flat on the earth. The various gods and demigods seized this opportunity and pinned various parts of his body to the ground, rendering him helpless. This being came to be called Vast (or Vastupurusa) because the gods and demigods managed to lodge themselves on his body. Legends hold that the deities, in pinning him down, occupied different parts of his body and continued to reside there (Figure1). In order to satisfy his hunger, Brahma ordained that he receive offerings from people on building sites before construction. The body of the Vastupurusa is supposed to be sensitive at a number of points called marmas. The well-being of the Vastupurusa assures the well-being of the building and, by implication, its owner. An important criterion for any building, therefore, is to avoid injury to the marmas located on the body of the Vastupurusa. To ensure that this is achieved, texts prohibit any direct construction upon the marmas themselves. The marmas are specifically said to lie at the intersection of major diagonals, seen as the veins (siras or nadis) of the purusa.
MINBAR
Platform in a mosque, placed next to the mihrab. The minbar is used with the khutba, the Friday sermon, and the khatib (the person performing the Friday sermon) ascends it.
Excellent Jain architecture and sculpture can be seen in their Stupas and rock-cut caves found in Mathura, Bundelkhand, Madhya Pradesh and Orissa cave temples. A number of rock-cut caves have been discovered in Udaigiri and Khandagiri, twin hills in Puri District of Orissa and in Ellora in Maharashtra.
Book Formatting: Quality Control Checks for DesignersConfidence Ago
This presentation was made to help designers who work in publishing houses or format books for printing ensure quality.
Quality control is vital to every industry. This is why every department in a company need create a method they use in ensuring quality. This, perhaps, will not only improve the quality of products and bring errors to the barest minimum, but take it to a near perfect finish.
It is beyond a moot point that a good book will somewhat be judged by its cover, but the content of the book remains king. No matter how beautiful the cover, if the quality of writing or presentation is off, that will be a reason for readers not to come back to the book or recommend it.
So, this presentation points designers to some important things that may be missed by an editor that they could eventually discover and call the attention of the editor.
Expert Accessory Dwelling Unit (ADU) Drafting ServicesResDraft
Whether you’re looking to create a guest house, a rental unit, or a private retreat, our experienced team will design a space that complements your existing home and maximizes your investment. We provide personalized, comprehensive expert accessory dwelling unit (ADU)drafting solutions tailored to your needs, ensuring a seamless process from concept to completion.
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.
Ideal for homeowners, tech enthusiasts, and industry professionals, this presentation provides valuable insights into the trends, benefits, and future developments in smart garage technology. Stay ahead of the curve with our expert analysis and practical tips on implementing smart garage solutions.
Top 5 Indian Style Modular Kitchen DesignsFinzo Kitchens
Get the perfect modular kitchen in Gurgaon at Finzo! We offer high-quality, custom-designed kitchens at the best prices. Wardrobes and home & office furniture are also available. Free consultation! Best Quality Luxury Modular kitchen in Gurgaon available at best price. All types of Modular Kitchens are available U Shaped Modular kitchens, L Shaped Modular Kitchen, G Shaped Modular Kitchens, Inline Modular Kitchens and Italian Modular Kitchen.
You could be a professional graphic designer and still make mistakes. There is always the possibility of human error. On the other hand if you’re not a designer, the chances of making some common graphic design mistakes are even higher. Because you don’t know what you don’t know. That’s where this blog comes in. To make your job easier and help you create better designs, we have put together a list of common graphic design mistakes that you need to avoid.
Between Filth and Fortune- Urban Cattle Foraging Realities by Devi S Nair, An...Mansi Shah
This study examines cattle rearing in urban and rural settings, focusing on milk production and consumption. By exploring a case in Ahmedabad, it highlights the challenges and processes in dairy farming across different environments, emphasising the need for sustainable practices and the essential role of milk in daily consumption.
Can AI do good? at 'offtheCanvas' India HCI preludeAlan Dix
Invited talk at 'offtheCanvas' IndiaHCI prelude, 29th June 2024.
https://www.alandix.com/academic/talks/offtheCanvas-IndiaHCI2024/
The world is being changed fundamentally by AI and we are constantly faced with newspaper headlines about its harmful effects. However, there is also the potential to both ameliorate theses harms and use the new abilities of AI to transform society for the good. Can you make the difference?
Can AI do good? at 'offtheCanvas' India HCI prelude
R.C.C. STAIRS
1. 3. R.C.C. STAIRS
• Reinforced concrete is perhaps the most suitable of all the said
materials for the construction of stairs.
• The various advantages of reinforced concrete stairs are given below
- They have requisite fire resisting qualities to a great extent
- They are durable strong pleasing in appearance and can beThey are durable, strong, pleasing in appearance and can be
easily rendered non-slippery.
- They can be designed for greater widths, longer spans and any
heightheight.
- They can be moulded in any desired form to suit the
requirements of the architect.
Th b il l d- They can be easily cleaned.
- The cost of maintenance is almost nil.
- They can be pre-cast or cast-in-situ.y p
- To change their appearance, R.C.C. stairs can be
covered/finished with thin slabs of stone, marble tiles or terrazzo
finish.
2. DESIGN PRINCIPLE AND SUPPORT SYSTEM:DESIGN PRINCIPLE AND SUPPORT SYSTEM:
• The choice of the type of stair to be adopted depends very much upon
the size of the staircase hall and the loading conditionthe size of the staircase hall and the loading condition.
• DIFFERENT STAIR ARRANGEMENT IN CASE OF R.C.C.
• Single Straight Flight Stairs
• Inclined Slab Stairs With Half Space Landings
• String Beam Stairs
• Crancked Slab Stairs• Crancked Slab Stairs
• Cantilever Stairs
• Spiral Stairsp
3. SINGLE STRAIGHT FLIGHT STAIRS:
• Although simple in
design and
construction is notconstruction, is not
popular because of
the plan space it
occupiesoccupies
• The flight behaves
as simply supported
slab, spanning from
landing to landing.
• The effective span/total horizontal going is usually taken as landing
d d b idi d d d b h l diedge to edge by providing a down stand edge beam to each landing.
• If these edge beams are not provided, the effective span would betaken
as overall of the landings, resulting in a considerably increased
bending moment and hence more reinforcement.
4. INCLINED SLAB STAIRS WITH
HALF SPACE LANDINGS:S C N NGS:
(STAIR WITH SLAB SPANNING
LONGITUDINALLY)
• This type of stairs gives more
compact plan layout and better
i l i h h i l i hcirculation than the single straight
flight stairs.
• The half space or 180o turn landingp g
is introduced at the midpoint of the
total rise, giving equal flight spans,
thus reducing the effective span andthus reducing the effective span and
hence reducing bending moment
considerably.
I t d i th l di• In most designs, the landings span
crosswise on to a load bearing wall
or beam and the flights span from
landing to landing.
5. • The point of intersection of the
soffits to the flights with the
landing soffits can be detailed
in any of two ways:y y
1) INTERSECTION OF SOFFITS
IN LINE, BUT NOSINGS OUTIN LINE, BUT NOSINGS OUT
OF LINE IN THE PLAN:
2) INTERSECTION OF FLIGHTS2) INTERSECTION OF FLIGHTS
AND LANDING SOFFITS ARE
OUT OF LINE ON THE
UNDERSIDE BUT THEUNDERSIDE, BUT THE
NOSINGS IN LINE ON PLAN
• i.e. first and last riser in
i fli h i liconsecutive flights in line on
6. 1) INTERSECTION OF SOFFITS IN LINE, BUT NOSINGS
OUT OF LINE IN THE PLAN:
i.e. first and last riser in the consecutive flights are not in line
7. 2) INTERSECTION OF FLIGHTS AND LANDING SOFFITS
ARE OUT OF LINE ON THE UNDERSIDE BUT THEARE OUT OF LINE ON THE UNDERSIDE, BUT THE
NOSINGS IN LINE ON PLAN
i.e. first and last riser in consecutive flights are in line
8. STRING BEAM STAIRS:
(STAIR WITH SLAB SPANNING HORIZONTALLY)
• In this category, the slab is
supported on one side by side wall
or stringer beam and on the otheror stringer beam and on the other
side by a stringer beam
• I.e. a string or edge beam is used
to span from landing to landing toto span from landing to landing to
resist bending moment with the
steps spanning horizontally.
I thi th i t l b i• In this case, the waist slab is
thinner and an overall saving in
the concrete volume required can
be achieved but this saving inbe achieved, but this saving in
material is usually offset by the
extra formwork cost required for
string beamstring beam.
• The string beam can be either up
stand or down stand in format and
can be on both sides if stairs arecan be on both sides if stairs are
free standing.
9. • Each step is designed as
spanning horizontally with thespanning horizontally with the
bending moment equal to wll/8,
where w is the uniformly
distributed load per unit area ondistributed load per unit area on
the step, inclusive of the self
weight.
• Sometimes, for wider steps, a
central string beam spanning
between the end walls or
column is provided on which
the stairs slab is supported.
• The waist slab is designed as• The waist slab is designed as
slab cantilevering from both the
sides of the string beam
10. CRANCKED SLAB STAIRS:
• These stairs are
very often used as avery often used as a
special feature since
the half space
l di hlanding has no
visible support
being designed as a
cantilever slab.
• Bending, Buckling and torsion stresses are induced with this form of
design creating the need for the reinforcement to both faces of the
landing and the waist slablanding and the waist slab.
• Hence the amount of reinforcement required is high which can
sometimes create site problem with regards to placing and compacting
th tthe concrete.
11. CANTILEVER STAIRS:
• They are also called
spine wall stairs.p
• They consist of a central
vertical wall from which
the flights and halfthe flights and half
space landings are
cantilevered.
Th ll id d f fi i t b t th fli ht d i• The wall provides a degree of fire resistance between the flights and is
therefore used mainly for the escape stairs.
• Since both flights and landings are cantilevered the reinforcement is placed
in the top of the flight slab and in the upper surface of the landing to
counteract the induced negative moment.
• The plan arrangement can be a single straight flight or two flights with half• The plan arrangement can be a single straight flight or two flights with half
space landings.
12. R.C.C.SPIRAL AND HELICAL STAIRS
• Mainly used as accommodation
stairs in the foyers of prestige
buildings such as theatres, banks,buildings such as theatres, banks,
commercial complexes etc.
• Can be expensive to construct-
normally at least seven times thenormally at least seven times the
cost of conventional stairs.
• The plan shape is generally based on
a circle; it is also possible to designa circle; it is also possible to design
an open spiral stair with an elliptical
core, which is known as helical
stairsstairs.
• The spiral an be designed around a
central large diameter circular
column where the steps arecolumn, where the steps are
cantilevered from that, or in case of
helical stairs, can be designed as
open circular well.open circular well.
13. • A large amount of steel
reinforcement is used to resist the
bending moment, shear force and
torsional moment.
• The continuous slab varies in
thickness from top to bottom- less
at top and increasing at the bottomat top and increasing at the bottom.
• There are two or three sets of
reinforcement with top and bottom
layer in each:
– Continuous bars running the
length of the spirale gt o t e sp a
– Cross or radial bars
– Diagonal bars laid tangential in
two directions to the inner
curve.