This document discusses the use of outrigger and belt truss systems in tall buildings to efficiently resist lateral loads. It describes how outriggers connect exterior columns to a central core, forming a stiff system. Belt trusses similarly connect perimeter columns. The document outlines conventional vs virtual systems, factors affecting performance, and provides examples of buildings using these systems like Jin Mao Tower in Shanghai. Key advantages are fewer constraints on column placement and all columns participating in overturning resistance.
COMPARATIVE STUDY OF OUTRIGGER STRUCTURE WITH DIFFERENT CONFIGURATIONSIEI GSC
Presentation on COMPARATIVE STUDY OF OUTRIGGER STRUCTURE WITH DIFFERENT CONFIGURATIONS made by Nilesh Prajapati under guidance of Ms Pooja Mistry & prepared by Jugal Senghani at #33NCCE #IEIGSC
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.
Diagrid structural systems
are emerging as structurally efficient as well as architecturally significant assemblies for tall buildings.
. The evolution of tall building structural systems based on new structural
concepts with newly adopted high strength materials and construction methods have been towards “stiffness” and “lightness”. Structural systems are become
“lighter” and “stiffer”.
It is common knowledge that rather than directly standing the forces,
it is better to reduce them and dissipate the magnitude of vibrations.
Structure design of high rise buildings is governed by lateral loads due to
wind or earthquake.
Lateral load resistance of structure is provided by interior structural system
or exterior structural system.
The selected structural system should be such that it should be effectively
utilized for structural requirements.
Recently diagrid structural system is adopted in tall buildings due to its
structural efficiency and flexibility in architectural planning.
COMPARATIVE STUDY OF OUTRIGGER STRUCTURE WITH DIFFERENT CONFIGURATIONSIEI GSC
Presentation on COMPARATIVE STUDY OF OUTRIGGER STRUCTURE WITH DIFFERENT CONFIGURATIONS made by Nilesh Prajapati under guidance of Ms Pooja Mistry & prepared by Jugal Senghani at #33NCCE #IEIGSC
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.
Diagrid structural systems
are emerging as structurally efficient as well as architecturally significant assemblies for tall buildings.
. The evolution of tall building structural systems based on new structural
concepts with newly adopted high strength materials and construction methods have been towards “stiffness” and “lightness”. Structural systems are become
“lighter” and “stiffer”.
It is common knowledge that rather than directly standing the forces,
it is better to reduce them and dissipate the magnitude of vibrations.
Structure design of high rise buildings is governed by lateral loads due to
wind or earthquake.
Lateral load resistance of structure is provided by interior structural system
or exterior structural system.
The selected structural system should be such that it should be effectively
utilized for structural requirements.
Recently diagrid structural system is adopted in tall buildings due to its
structural efficiency and flexibility in architectural planning.
This slide explains different structural systems used in high rise buildings.what is the true meaning of high rise building ?
aims of high rise? objectives of high rise?
A report format presentation of earthquake-resistance construction techniques, stressing upon the relevance of such techniques in the architecture industry.
Analysis and comparison of High rise building with lateral load resisting sys...DP NITHIN
Emporis standards define a high rise building as “A multi-storey structure between 35-100 meters tall”. When buildings become taller and taller, the effect of lateral load on the structure comes into existence. The lateral action on the structure is majorly induced by the wind and seismic force.
They needs a lateral load resisting system to maintain the structure stable when lateral loads are applied to them.
The different lateral load resisting systems in the high rise building are
Moment Resisting Frame(MRF), Shear wall system, Bracing system
Earthquake-resistant structures are structures designed to protect buildings to some or greater extent from earthquakes. While no structure can be entirely immune to damage from earthquakes, the goal of earthquake-resistant construction is to erect structures that fare better during seismic activity than their conventional counterparts. According to building codes, earthquake-resistant structures are intended to withstand the largest earthquake of a certain probability that is likely to occur at their location. This means the loss of life should be minimized by preventing the collapse of the buildings for rare earthquakes while the loss of the functionality should be limited for more frequent ones
This slide explains different structural systems used in high rise buildings.what is the true meaning of high rise building ?
aims of high rise? objectives of high rise?
A report format presentation of earthquake-resistance construction techniques, stressing upon the relevance of such techniques in the architecture industry.
Analysis and comparison of High rise building with lateral load resisting sys...DP NITHIN
Emporis standards define a high rise building as “A multi-storey structure between 35-100 meters tall”. When buildings become taller and taller, the effect of lateral load on the structure comes into existence. The lateral action on the structure is majorly induced by the wind and seismic force.
They needs a lateral load resisting system to maintain the structure stable when lateral loads are applied to them.
The different lateral load resisting systems in the high rise building are
Moment Resisting Frame(MRF), Shear wall system, Bracing system
Earthquake-resistant structures are structures designed to protect buildings to some or greater extent from earthquakes. While no structure can be entirely immune to damage from earthquakes, the goal of earthquake-resistant construction is to erect structures that fare better during seismic activity than their conventional counterparts. According to building codes, earthquake-resistant structures are intended to withstand the largest earthquake of a certain probability that is likely to occur at their location. This means the loss of life should be minimized by preventing the collapse of the buildings for rare earthquakes while the loss of the functionality should be limited for more frequent ones
Seismic Response of Structure with Single Coreijtsrd
Shear walls and outriggers have been used so far to resist the seismic waves of earthquake and heavy winds actions. The complete failure of the structures that has occurred in the past due to catastrophic earthquake may be avoided with the use of shear wall in the structure. The study is concerned with the use of shear wall as a single core in structure that will resist the seismic waves of earthquake. In the present study analysis of RCC building has been carried out by changing the locations of shear walls in the building. The seismic analysis performed is linear dynamic response spectrum analysis using the well known analysis and design software ETABS 16.2.0. Seismic performance of the building has been investigated based on parameters such as strorey drift, base shear and storey displacement. Belsare Sumit Bandopanth | Dilip Budhlani "Seismic Response of Structure with Single Core" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-3 , April 2020, URL: https://www.ijtsrd.com/papers/ijtsrd30851.pdf Paper Url :https://www.ijtsrd.com/engineering/civil-engineering/30851/seismic-response-of-structure-with-single-core/belsare-sumit-bandopanth
Dynamic analysis of steel tube structure with bracing systemseSAT Journals
Abstract Nowadays, competition towards rise of tall steel structures made certain factors are compulsory like serviceability and comfort of human relating to lateral loads caused by wind or earthquake. Earthquake is dangerous to the living beings in terms of its effects on manmade structures. Structures like tall buildings are built to resist gravity loads. However many tall buildings are not so resistant in lateral loads due to earthquake so need an improvement in resisting lateral loads. So there are many structural systems which resist lateral loads by varying orientation, addition of different structural systems. Like steel tubular structural system is considered and compared for their results against lateral forces and also by providing mega bracing system and diagrid bracing system. In this dissertation work, four structural systems are considered in which one is framed structure and rest are tubular system with addition of different bracing systems as mega bracing and diagrid bracing system. For the purpose 45 storey steel structure with rectangular plan of dimension 44mx24m uniform throughout the height is considered and analyzed for gravity and lateral loads using ETABS software. Its intention is to obtain the functioning characteristics like displacements, storey shear, time period, frequency, peak displacement and peak acceleration in both x and y direction to get most economical structure in all ways. Results shows that the steel tubular structure with mega bracing system performance is much better than the framed structure, tubular and tubular structure with diagrid bracing system. Keywords: Steel Tube Structure, Mega Bracing, Diagrid Bracing, Dynamic Analysis, ETABS, Time and History Analysis.
Structural systems in high rise building and analysis methodsDP NITHIN
This presentation is about the structural systems in tall buildings and also consists of overview of methods of analysis in tall buildings like linear and non linear seismic analysis.
RESPONSE OF LATERAL SYSTEM IN HIGH RISE BUILDING UNDER SEISMIC LOADSIjripublishers Ijri
Tall building development has been rapidly increasing worldwide introducing new challenges that need to be met through
engineering judgment. In modern tall buildings, lateral loads induced by wind or earthquake are often resisted by a
system of coupled shear walls. But when the building increases in height, the stiffness of the structure becomes more
important and introduction of outrigger beams between the shear walls and external columns is often used to provide
sufficient lateral stiffness to the structure. In general, earthquake ground motion can occur anywhere in the world and
the risk associated with tall buildings, especially under severe earthquakes, should be given particular attention, since
tall buildings often accommodate thousands of occupants.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
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Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
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We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
1. SEMINAR
PRESENTATION
ON
THE EFFICIENT USE OF OUTRIGGER AND BELT TRUSS
IN TALL BUILDINGS
Submitted to
MALAVIYA NATIONAL INSTITUTE OF TECHNOLOGY, JAIPUR
In partial fulfillment of the requirement for the award of Degree of
MASTER OF TECHNOLOGY
IN
STRUCTURAL ENGINEERING
Under the supervision of: Submitted By:
Dr. Ravindra Nagar Neeraj Agrawal
Professor (Structural Engg. Deptt.) M.Tech.(Structural Engineering)
MNIT Jaipur Student ID: 2010/PST/126
DEPARTMENT OF STRUCTURAL ENGINEERING,
MALAVIYA NATIONAL INSTITUTE OF TECHNOLOGY JAIPUR,
JAIPUR-302017
2. INTRODUCTION
Tall building with conventional
outriggers and belt truss
The outrigger and belt
truss system is one of the
lateral loads resisting
system in which the
external columns are tied to
the central core wall with
very stiff outriggers and
belt truss at one or more
levels.
Taken from S. Fawzia and T. Fatima
3. The belt truss tied the peripheral column of
building while the outriggers engage them with
main or central shear wall.
Strandard 3D view of Outrigger and belt truss
Taken from S. Fawzia and T. Fatima
4. The aim of this method is to reduce obstructed
space compared to the conventional method.
The floor space is usually free of columns and is
between the core and the external columns, thus
increasing the functional efficiency of the building.
Exterior columns restrained the core wall from
free rotation through outrigger arms.
5. Outrigger and belt trusses, connect planar
vertical trusses and exterior frame columns.
Outrigger system can lead to very efficient use
of structural materials by mobilizing the axial
strength and stiffness of exterior columns.
6. The great sailing ships of the past and present
use outriggers to help resist the wind forces in
their sails. Like the ship, the core in the tall
building can be related to the mast of the ship,
the outrigger acting like the spreaders and the
exterior columns like the stays or shroud of the
ship.
THE CONCEPT OF OUTRIGGER
7. THE USE OF OUTRIGGERS IN HIGH-RISE
BUILDINGS TO CONTROL THE FORCES
The incorporation of an outrigger which connects
the two elements together provides a stiffer
component which act together to resist the
overturning forces.
When an outrigger-braced building deflects under
wind or seismic load, the outrigger which connects to
the core wall and the exterior columns, makes the
whole system to act as a unit in resisting the lateral
load.
8. TYPES OF OUTRIGGER TRUSS
SYSTEM
On the basis of connectivity of core to exterior
columns, this system may be divided as in two
types :
1. CONVENTIONAL OUTRIGGER CONCEPT
2. VIRTUAL OUTRIGGER CONCEPT
9. CONVENTIONAL OUTRIGGER CONCEPT
In the conventional
outrigger concept, the
outrigger trusses or
girders are connected
directly to shear walls or
braced frames at the core
and to columns located
outboard of the core.
Typically (but not
necessarily), the columns
are at the outer edges of
the building.
Tall building with conventional outriggers
Taken from R. SHANKAR NAIR
10. VIRTUAL OUTRIGGER CONCEPT
In the “virtual” outrigger concept, the same transfer
of overturning moment from the core to elements
outboard of the core is achieved, but without a
direct connection between the outrigger trusses and
the core.
The basic idea behind the virtual outrigger concept
is to use floor diaphragms, which are typically very
stiff and strong in their own plane.
11. BELT TRUSSES AS VIRTUAL OUTRIGGERS
Tall building with belt trusses
as “virtual” outriggers
The use of belt trusses as
virtual outriggers avoids
many of the problems
associated with the use of
conventional outriggers.
The principle is the same as
when belt trusses are used
as virtual outriggers. Some
fraction of the moment in
the core is converted into a
horizontal couple in the
floors at the top and the
bottom of the basement. Taken from R. SHANKAR NAIR
12. ADVANTAGES OF USE OF BELT TRUSSES AS
VIRTUAL OUTRIGGERS
1. There are no truss diagonals extending from the
core to the exterior of the building.
2. The need to locate outrigger columns where they
can be conveniently engaged by trusses extending
from the core is eliminated.
3. The complicated truss-to-core connection is
eliminated.
13. 4. Differential shortening or settlement between the
core and the outboard columns does not affect the
virtual outrigger system since the floor diaphragms,
though stiff in their own plane, are very flexible in
the vertical, out-of-plane direction.
Taken from R. SHANKAR NAIR
14. FACTORS AFFECTING THE EFFECTIVENESS OF
OUTRIGGER SYSTEM
1. The stiffness and location of the outrigger truss
system.
2. The stiffness and location of the Belt truss system.
3. Geometry of the tall building.
4. Stiffness of the central core.
5. Floor-to-floor height of the tall building.
15. Advantages of using Outrigger & Belt truss system
1. There are no trusses in the space between the
core and the building exterior.
2. There are fewer constraints on the location of
exterior columns. The need to locate large exterior
columns where they can be directly engaged by
outrigger trusses extending from the core is
eliminated.
16. 3. All exterior columns (not just certain designated
outrigger columns) participate in resisting
overturning moment.
4. The difficult connection of the outrigger trusses to
the core is eliminated.
5. Core overturning moments can be reduced
through the reverse moment applied to the core at
each outrigger connection.
17. 6. Exterior framing can consist of simple beam and
column framing without the need for rigid-frame-
type connection, thus reducing the overall cost.
7. Reduction or elimination of uplift and net tension
forces without the column and foundation system.
18.
19. PLAZA RAKYAT TOWER
The 77-story Plaza Rakyat office
tower in Kuala Lumpur,
Malaysia, uses a concrete shear
core, a concrete perimeter
frame, exterior concrete belt
walls at two levels, and a
conventional outrigger system
at the roof as the building’s
lateral load-resisting system
20. JIN MAO TOWER
The 88-story Jin Mao Office, Hotel,
observation, retail tower is in Shanghai,
China. The tower is built around an
octagon-shaped concrete shear wall core
surrounded by 8 exterior composite super
columns and 8 exterior steel columns.
Three sets of 8 two-story high outrigger
trusses connect the columns to the core at
six of the floors to provide additional
support
21. TAIPEI 101
The 101-story TAIPEI-101 Office, Hotel,
observation, retail tower is in Shanghai,
China. The design achieves both strength
and flexibility for the tower through the
use of high-performance steel construction.
Thirty-six columns support Taipei 101,
including eight "mega-columns" packed
with 10,000 psi (69 MPa) concrete. Every
eight floors, outrigger trusses connect the
columns in the building's core to those on
the exterior.
22. CHIFLEY TOWER
The 42-story Chifley Tower Office,
financial institutions, law firms and
corporations tower is in Sydney, Australia.
23. CONCLUSTIONS ON TALL BUILDINGS USING
OUTRIGGER & BELT TRUSS
1. There are no trusses in the space between the
core and the building exterior.
2. There are fewer constraints on the location of
exterior columns. The need to locate large exterior
columns where they can be directly engaged by
outrigger trusses extending from the core is
eliminated.
24. 3. All exterior columns (not just certain designated
outrigger columns) participate in resisting
overturning moment.
4. The difficult connection of the outrigger trusses
to the core is eliminated.
5. Complications caused by differential shortening
of the core and the outrigger columns are
avoided.
25. REFERENCES
3. Stafford Smith, B., Cruvellier, M., Nollet, M-J.,
and Mahyari, A. T., “Offset Outrigger Concept
for Tall Buildings,”
1. B.S. Taranath, Structural Analysis & Design
of Tall Buildings. New York, Mc Graw Hill,
1998.
2. R. S. Nair, Belt Trusses and Basements as
“Virtual” Outriggers for Tall Buildings.
Engineering Journal / Fourth Quarter/ 1998.
26. 4. P.S. Kian and F.T.Siahaan, The use of outrigger
and belt truss system for high-rise concrete
buildings. Dimensi Teknit Sipil, Volume 3, No1,
Maret 2001, Page 36-41,ISSN1410-9530.
5. Smith, B. S., Coull, A. Tall Building
Structures: Analysis and Design. John Wiley
and Sons, Inc, New York.
6. S. Fawzia and T. Fatima, Deflection Control in
Composite Building by Using Belt Truss and
Outriggers Systems, Brisbane 4000, Australia.