The document discusses cable suspension bridges, including their components, types, evolution, construction sequence, uses of anchorage, structural analysis and loads, software used in design, structural failures, and examples of major suspension bridges around the world. Suspension bridges consist of main cables hung between towers that support the deck, and vertical suspender cables connect the deck to the main cables. The document outlines the typical components and provides details on the construction process for building cable suspension bridges.
About Suspension Bridges:
A suspension bridge is a type of bridge in which the deck (the load-bearing portion) is hung below suspension cables on vertical suspenders. The first modern examples of this type of bridge were built in the early 19th century. Bridges without vertical suspenders have a long history in many mountainous parts of the world.
A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspenders. The basic structural components of a suspension bridge system include stiffening girders/trusses, the main suspension cables, main towers, and the anchorages for the cables at each end of the bridge.
About Suspension Bridges:
A suspension bridge is a type of bridge in which the deck (the load-bearing portion) is hung below suspension cables on vertical suspenders. The first modern examples of this type of bridge were built in the early 19th century. Bridges without vertical suspenders have a long history in many mountainous parts of the world.
A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspenders. The basic structural components of a suspension bridge system include stiffening girders/trusses, the main suspension cables, main towers, and the anchorages for the cables at each end of the bridge.
A stressed ribbon bridge (also stress-ribbon bridge or catenary bridge) is a tension structure (similar in many ways to a simple suspension bridge). The suspension cables are embedded in the deck which follows a catenary arc between supports. Unlike the simple span, the ribbon is stressed in traction, which adds to the stiffness of the structure (simple suspension spans tend to sway and bounce).
what is a ribbon bridge
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Bridges: Classification of bridges – with respect to construction
materials, structural behavior of super structure, span, sub structure,
purpose. Temporary and movable bridges. Factors affecting site
selection. Various loads/stresses acting on bridges. Bridge hydrology –
design discharge, water way, afflux, scour depth, economical span.
Bridge components – foundation, piers, abutments, wing wall, approach,
bearings, floor, girders, cables, suspenders. Methods of erection of
different types of bridges. River training works and maintenance of
bridges. Testing and strengthening of bridges. Bridge architect.
A stressed ribbon bridge (also stress-ribbon bridge or catenary bridge) is a tension structure (similar in many ways to a simple suspension bridge). The suspension cables are embedded in the deck which follows a catenary arc between supports. Unlike the simple span, the ribbon is stressed in traction, which adds to the stiffness of the structure (simple suspension spans tend to sway and bounce).
what is a ribbon bridge
stress ribbon pedestrian bridges
cancer symbols and colors
bridge materials for sale
materials used to build bridges
used bridge
material used in construction
interesting civil engineering topics
civil engineering topics for presentation
seminar topics pdf
best seminar topics for civil engineering
civil seminar topics ppt
civil engineering seminar topics 2019
seminar topics for mechanical engineers
mechanical engineering seminar topics 2018
Bridges: Classification of bridges – with respect to construction
materials, structural behavior of super structure, span, sub structure,
purpose. Temporary and movable bridges. Factors affecting site
selection. Various loads/stresses acting on bridges. Bridge hydrology –
design discharge, water way, afflux, scour depth, economical span.
Bridge components – foundation, piers, abutments, wing wall, approach,
bearings, floor, girders, cables, suspenders. Methods of erection of
different types of bridges. River training works and maintenance of
bridges. Testing and strengthening of bridges. Bridge architect.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
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Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
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.
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.
2. CABLE SUSPENSION BRIDGE
CONTENTS
01- INTRODUCTION
02- TYPES OF SUSPENSION BRIDGE
03- COMPONENTS OF SUSPENSION BRIDGE
04- USE OF ANCHORAGE
05- EVOLUTION OF SUSPENSION BRIDGE
06- STRUCTURAL ANALYSIS LOADS
07- CONSTRUCTION SEQUENCE
08- SOFTWARE CAN BE USED TO DESIGN
09- STRUCTURAL FAILURE
10- SUSPENSION BRIDGE THROUGH OUT THE WORLD
11- ADVANTAGES AND DISADVANTAGES
3. CABLE SUSPENSION BRIDGE
INTRODUCTION
A suspension bridge consist of two cables, which are stretched over the span to be
bridged. Each cable passing over two towers anchored by backstays to a firm foundation.
As the cable is flexible throughout, therefore it cannot resist any moment and can adopt
any shape under the load, that is why the bending moment at every point of the cable is
taken zero.
The central sag or dip of the cable generally varies from 1/10 to 1/15 of the span. It may be
noted that, since the cable is in tension throughout, this type of construction is most
economical.
DIP
5. CABLE SUSPENSION BRIDGE
TYPICAL SUSPENSION BRIDGE
The deck (trafficway) of a suspension bridge is hung by suspender cables which hang from
master cables (resisting on the tower). The cables transfer the weight to the towers, which
transfer the weight to the good
TYPES OF SUSPENSION BRIDGE
6. CABLE SUSPENSION BRIDGE
CABLE STAYED BRIDGES:
Cable-stayed bridges have towers, but cables from the tower go directly to the road deck,
instead of spanning from tower to tower.
7. COMPONENTS OF SUSPENSION BRIDGE
CABLE SUSPENSION BRIDGE
A suspension bridge is a type of bridge in which the deck (the load-bearing portion) is
hung below suspension cables on vertical suspenders.
COMPONENTS
Cables-suspend the roadway(deck) via hangers
Towers- stabilize wire cables (offer little support)
Anchorages
8. CABLE SUSPENSION BRIDGE
WITHOUT ANCHORAGE
WITH ANCHORAGE
ANCHORAGE
Anchorages are the structures to which the
ends of the bridge's cables are secured. They
are massive concrete blocks securely
Attached to strong rock formations.
During construction of the
anchorages, strong eye bars (steel
Bars with a circular hole at one
end) are embedded in the concrete.—each
wire bundle will be secured to one of the
anchorage's eye bars.
9. CABLE SUSPENSION BRIDGE
EVOLUTION OF SUSPENSION BRIDGES
The first design for a bridge resembling the modern suspension
bridge is attributed to venetion engineer Fausto Veranzio whose
1595 book Machinae Novae included drawings both for a timber
and rope suspension bridge cable-stayed bridge using iron chains.
However, the first suspension bridge actually build was by James
Finely(American engineer) at Jacob’s creek, in 1801. Finely bridge
was the first to incorporate all of the necessary components of a
suspension bridge.
10. CABLE SUSPENSION BRIDGE
CABLE STAYED BRIDGES
Cable-stayed bridges have towers, but cables from the tower go
directly to the road deck, instead of spanning from tower to
tower.
STRUCTURAL ANALYSIS
LOADS
DEAD LOAD
Dead load refers to the weight
of the bridge itself. Like any
other structure, a bridge has a
tendency to collapse simply
because of the gravitational
force acting on the materials of
which the bridge is made.
LIVE LOAD
Live loads refers to traffic that
moves across the bridge as
well as normal environment
factors such as changes in
temperature, precipitation and
winds.
DYNAMIC LOAD
Dynamic load refers to
environment factors that go
beyond normal weather
conditions, factor such as sudden
gusts of wind and earthquake. All
three factors must be taken into
consideration when building a
bridge.
12. CABLE SUSPENSION BRIDGE
CONSTRUCTION SEQUENCE
TOWERS
Tower foundation are prepared by dagging down to a sufficient
firm rock formation.
Some bridges are designed so that their towers are built on dry
land, which makes construction easier.
If a tower will stand in water, its construction begins with
lowering a caisson (a steel and concrete cylinder that acts as
a circular damn) to the ground beneath the water; removing
the water from the caisson's interior allows workers to
excavate a foundation without actually working in water.
13. CONSTRUCTION SEQUENCE`
2. SADDLES
Large devices called saddles, which will carry the main suspension cables, are
positioned atop the towers. Typically of cast steel, they can also be manufactured
using riveted forms, and are equipped with rollers to allow the main cables to shift
under construction and normal loads.
3.ANCHORAGE
Anchorages are the structures to which the ends of the bridge's cables are secured. They are massive concrete blocks
securely attached to strong rock formations. During construction of the anchorages, strong eye bars (steel bars with a circular
hole at one end) are embedded in the concrete.—each wire bundle will be secured to one of the anchorage's eye bars.
• CABLE SUSPENSION BRIDGE
14. CABLE SUSPENSION BRIDGE
CONSTRUCTION SEQUENCE`
4.CATWALKS
Temporary suspended walkways, called catwalks, are then erected using a set of guide wires
hoisted into place via winches positioned atop the towers. These catwalks follow the curve set by
bridge designers for the main cables. Typical catwalks are usually between eight and ten feet
wide, and are constructed using wire grate and wood slats.
15. CABLE SUSPENSION BRIDGE
CONSTRUCTION SEQUENCE`
5.CABLE SPINNING
High strength wire (typically 4 or 6 gauge galvanized steel wire), is
pulled in a loop by pulleys on the traveler, with one end affixed at an
anchorage. When the traveler reaches the opposite anchorage the
loop is placed over an open anchor eye bar. Along the catwalk,
workers also pull the cable wires to their desired tension. This
continues until a bundle, called a "cable strand" is completed, and
temporarily bundled using stainless steel wire.
Then it is brought to shape with compactor
SPINNING
BUNDLE COMPACTION
16. CABLE SUSPENSION BRIDGE
CONSTRUCTION SEQUENCE`
6.HANGERS / VERTICAL CABLES
At specific points along the main cable devices called "cable bands“(clamps) are installed to carry steel wire ropes called Suspender cables.
Each suspender cable is engineered and cut to precise lengths, and are looped over the cable bands. In some bridges, where the towers are
close to or on the shore, the suspender cables may be applied only to the central span.
17. CABLE SUSPENSION BRIDGE
CONSTRUCTION SEQUENCE`
7.DECK
After vertical cables are attached to the main support cable, the deck structure can be started. The structure must be built in both directions
from the support towers at the correct rate in order to keep the forces on the towers balanced at all times. In one technique, a moving crane
that rolls atop the main suspension cable lifts deck sections into place, where workers attach them to previously placed sections and to the
vertical cables that hang from the main suspension cables, extending the completed length. Alternatively, the crane may rest directly on the
deck and move forward as each section is placed.
Upon completion of the deck the added load will pull the main cables into an arc mathematically described as a parabola, while the arc of the
deck will be as the designer intended
18. CABLE SUSPENSION BRIDGE
Structural engineering is usually considered a specialty within
civil engineering, but it can also be studied in its own right.
Structural engineers are responsible for engineering design and
analysis. Entry-level structural engineers may design the
individual structural elements of a structure, or example- the
beams, columns, and floor of a building.
SOFTWARE USED
STAAD.Pro is the leading Structural Analysis and Design software rom Bentley. STAAD.Pro is
the professional’s choice for steel, concrete, timber, aluminium and cold formed steel
design virtually any structure including culverts, petrochemical plants, tunnes bridges, piles
and much more.
19. SUSPENSION BRIDGES…
THROUGHOUT THE WORLD
SUSPENSION BRIDGE
AKASHI KAIKYŌ BRIDGE - JAPAN
1991 M – SPAN
XIHOUMEN BRIDGE - CHINA
1650 M – SPAN
GOLDEN GATE BRIDGE – US
1280 M – SPAN
SIDU RIVER BRIDGE – CHINA (1222 M
SPAN)
BRIDGE TO RUSSKY ISLAND
RUSSIA - 1104 M SPAN
SUTONG BRIDGE - CHINA
1088 M SPAN
20. CABLE SUSPENSION BRIDGE
Nivedita Setu
SUSPENSION BRIDGE THROUGH OUT THE INDIA
Bandra–Worli Sea Link LAKSHMAN JHOOLA
india-arunachal-pradesh-tenga-western kallada river bridge vidyasagar setu bridge
21. CABLE SUSPENSION BRIDGE
Structural Failure
Some bridges have in the past suffered from structural failure. This may be combination of poor
design and severe weather conditions.
When it was opened in 1940, the Tacoma Narrows Bridge was the third longest suspension
bridge in the world. It later become known as "Galloping Gertie," due to the fact that it moved
not only from side to side but up and down in the wind. Attempts were made to stabilize the
structure with cables and hydraulic buffers, but they were unsuccessful.
Eventually on November 7, 1940, only four months after it was built the bridge collapsed in a
wind of 42 mph. The bridge was designed to withstand winds of up to 120 mph. Some experts
have blamed the collapse of the bridge upon a phenomenon called resonance. When a body
vibrates at its natural frequency it can shatter. Resonance is the same force that can shatter a
glass when exposed to sound vibrations from an opera singers voice.
22. CABLE SUSPENSION BRIDGE
ADVANTAGE
Longer main spans are achievable than with any other type of bridge.
Less material may be required than other bridge types, even at spans they can achieve,
leading to a reduced construction cost.
May be better to withstand earthquake movements than heavier and more rigid bridges.
Bridges decks can have deck sections replaced in order to widen traffic lanes for larger
vehicles or add additions width for separated cycling/pedestrian path.
23. CABLE SUSPENSION BRIDGE
DISADVANTAGES
Considering stiffness or aerodynamic profiling may be required to prevent the bridge deck
vibrating under high winds.
The relatively low decks stiffness compared to other(non-suspension) types of bridges make it
more difficult to carry heavy rail traffic where high concentrated live load occur.
Some access below may be required during construction, to lift the initial cables or to lift deck
units. This access can often be avoided in cable stayed bridge construction.