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 9.
(2) Building Support Structures, Analysis and Design with SAP2000 Software, 2nd ed., eBook by Wolfgang Schueller: chapter 11.
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.
Shell structure, In building construction, a thin, curved plate structure shaped to transmit applied forces by compressive, tensile, and shear stresses that act in the plane of the surface.
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 9.
(2) Building Support Structures, Analysis and Design with SAP2000 Software, 2nd ed., eBook by Wolfgang Schueller: chapter 11.
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.
Shell structure, In building construction, a thin, curved plate structure shaped to transmit applied forces by compressive, tensile, and shear stresses that act in the plane of the surface.
A short and elaborate Case Study on Membrane Structures for the course of Advanced Building Construction from students of 8th Semester Architecture at VNIT, Nagpur (January- April 2017)
A space frame or space structure is a structure system assembled of linear elements so arranged that forces are transferred in a three-dimensional manner. Space frames can be used to cover large areas with few interior supports.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
1. THE NATIONAL RIBAT UNIVERSITY
Eng. Mazin Elsayed A. Mustafa
Teaching Assistant
Faculty of Architecture
“THE TENTS STRUCTURE SYSTEM”
2. CONTENTS :
1. Introduction.
2. Definition of the Tent Structure System.
3. Why tensile (Tent) are the shape they are ?
4. Types of Tents Fabric Structures.
5. Components & Materials.
6. Advantages & Disadvantages.
3. • Tensile fabric structures have been with us since the Mongolians swept
down from the plains, with their yurts as their transportable overnight
accommodation.
• There’s evidence that the Romans even covered the Colosseum with
massive canopies, hoisted by an intricate system of pulleys, to protect the
audience from the elements.
• They really came into their own in the last half of the 20th century, when
designs like this by Germany’s Frei Otto.
Introduction :
4. Definition of the Tent Structure System:
• A Membrane is a thin, flexible surface that carries loads primarily through the
development of tension forces.
• Holding a stress tension force.
• Provide strong lighting features.
• Desert architecture identity, inspired from ten design and geometry.
((Net structures are conceptually similar; expect that their surfaces are made from
cable net meshes.))
Jeddah Sports Hall, Jeddah,
Saudi Arabia, Frei Otto
5. * There are several ways of stabilizing a membrane or net surface:
1.An inner rigid supporting framework.
2.Restressing the surface by:
a. External force (Tents)
b. Internal pressurization (Pneumatic structure).
6.
7. DENVER INTERNATIONAL AIRPORTCHICAGO’S NAVY PIER
• Fabric structures cannot take heavy weather conditions is an incorrect statement.
• Fabric is elastic and stretches. Fabric has a strong tensile strength and will creep (stretch very
slightly) only a few percent over 20 years of use.
Common Misconceptions:
8. Why tensile (Tent) are the shape they are ?
•Large flat pieces of fabric are very poor at resisting loads.
•Imagine four of you each pulling on the strings laced through a tennis ball.
Fig 1. A fifth person pushing down on the ball can deflect it easily.
•Imagine a flappy marquee roof. Try lifting two opposite strings and lowering the other two.
Fig 2. The ball is now locked in space. Apply this principle to fabric and you have created
‘anticlastic’ double curvature
Fig. 1 Fig. 2
10. • Four or more point system when the fabric is stretched
between a set of alternating high and low points
1. Saddle Roof
• The roof plan, taken
directly from the
structural engineering
working drawings,
illustrates the roof
configuration and its
components.
• The saddle-shaped roof of the stage cover nestles under the auditorium
roof of the project. The leaning A-frames and the stay cables which
hold them back are clearly visible, along with the radial cables which
shape the tent units. The corner tripods, each consisting of a vertical
mast and two sloping cables, are connected to concrete anchors rising
from the water.
Section through the project showing the
stage roof tucked under the auditorium
roof.
11. • Tent-like in appearance, mast supported structures typically
have one or sometimes several peaks that are supported by
either interior or perimeter masts.
• The fabric is attached to the interior mast by special connections, usually a bale
ring or cable loop.
• Mast-supported structures can also be supported by adjacent buildings. The
peaks of a mast supported structure are determined by the design and how the
fabric is attached.
• Openings are typically ovoid or elliptical. The fabric that
extends from the top of the opening is seamed and can
necessitate patterning.
• Mast supported systems are suitable
for long span roofs.
2. Mast Supported:
`
12. • Curved compression members are used as the main supporting elements and
cross arches are used for lateral stability.
• In a plane arch, large differences between the thrust lines and the main
geometry will produce large bending moments that in turn produce large
changes in shape and high stresses in the arch chord section. One method to
significantly reduce these effects is to tie or restrain points along the arch
chord to reduce the initial large deformations of the chord
• The buckling length of the arch chord can also be reduced by discretely or
continuously supporting the chord with tension elements or systems comprised
of cables or membranes.
• Typical arch shapes defined by physical
and ergonomic constraints.
3. Arch Supported Roof:
14. Components & Materials:
Base plate:
• Connection to concrete foundation pillar
Membranes:
• Forms the enclosure of the structure. Connections can be glued or
heat welded
• PVC coated polyester (polyvinylchloride)
• Silicon coated glass
• Teflon coated glass P.T.F.E (poly tetra fluro ethylene)
Bale ring/ membrane plate:
Provide a link between the membrane and structural elements..
• Bale rings are used at the top of conical shapes.
• Membrane plates accept centenary cables and pin connection
hardware.
Types of fabric membrane:
• PVC : Less expensive (15 to 20 year life span and easy to erect)
• Silicon glass: Higher tensile Brittle (subject to damage from flexing 30+
year life span)
15. • Specialized Hardware:
Tripod head with centenary cables
Centenary cables at a side connection
Extruded section with membrane
plate and centenary cables
Tensioner
16. • Cable clamps
Edge c able with c lamps. Used mainly for PTFE-coated
fiber glass fabric , but also for PVC coated poly ester fabric
when edge spans are longer than 20 m.
17. • Bale rings are a good way to control stresses in fabric roof
at high or low points. Used at high points they must be
covered to make the structure watertight. If used at low
points, they can be used to gather rainwater and snow
for redistribution on site.
• Channel (with grommets) and lacing. Used with PVC-
coated polyester fabric where the edge has grommets
spaced at frequent intervals.
• Rope is laced through the grommets and to a tie rod
within the channel.
20. Advantages Disadvantages
• Longer life cycles of materials.
• Materials can be re-used in form.
• Most materials are completely recyclable.
• Less impact on site.
• Less construction debris after demolition.
• Unique designs.
• Lightweight and flexible.
• Environmentally sensitive.
• High strength weight ratio.
• Little to no rigidity.
• Loss of tension is dangerous for stability.
• Thermal values limit use
• Load Transfer on Fabric Structures
• Attachment Weaknesses in Mono cover
Fabric Structures