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Suspension Bridges
Types of Bridges What are bridges used for? What bridges have you seen in real life? Where were they? Were they designed for people to walk over? Do you know the name and location of any famous bridges? Did you know that there is more than one type of design for bridges? Let’s take a look at some of them. Suspension Bridges A suspension bridge uses ropes, chains or cables to hold the bridge in place. Vertical cables are spaced out along the bridge to secure the deck area (the part that you walk or drive over to get from one side of the bridge to the other). Suspension bridges can cover large distances. Large pillars at either end of the waterways are connected with cables and the cables are secured, usually to the ground. Due to the variety of materials and the complicated design, suspension bridges are very expensive to build. Suspension Bridges The structure of suspension bridges has changed throughout the years. Jacob’s Creek Bridge in Pennsylvania was built in 1801. It was the first suspension bridge to be built using wrought iron chain suspensions. It was 21 metres long. If one single link in a chain is damaged, it weakens the whole chain which could lead to the collapse of the bridge. For this reason, wire or cable is used in the design of suspension bridges today. Even though engineer James Finlay promised that the bridge would stay standing for 50 years, it was damaged in 1825 and replaced in 1833. Suspension Bridges Akashi Kaiko Bridge, Japan The world’s longest suspension bridge is the Akashi Kaikyo Bridge in Japan. -
I-35W Mississippi River Bridge Failure – Is It a Wake up Call?
Point of View These columns of ICJ offer an opportunity to the engineering fraternity to express their views on the current practices in design, construction and management being followed in the industry. To share your opinion with our readers, you may send in your inputs in about 1500 words via e-mail to [email protected] I-35W Mississippi river bridge failure – Is it a wake up call? N. Subramanian Infrastructure plays a major role in the economy of 1907, the Tacoma Narrows in 1940 and the West Gate a country. Bridges are a major component of any in 1970. Whether this theory will hold well in the near infrastructure and the failure of a bridge will affect the future is debatable as many of the aging infrastructure economy of any country. The recent failure of the I-35W projects in several countries are under threat of failure Mississippi river bridge may be considered as a wake and some immediate measures are necessary to save up call to think about redundancy in structural design them from disasters. This paper discusses the recent of bridges, and evolution of bridge monitoring and failure of I-35 W Mississippi river bridge and gives some inspection systems. The details of the I-35W Mississippi details of other major bridge failures. river bridge, its failure and its impact on future bridge designs, monitoring and testing are discussed in this The I-35W Mississippi river bridge paper. These details may help in preventing such The I-35W Mississippi river bridge (officially designated disastrous failures in future. -
So Now I²ll Count from Ìve to One and Bring You out of This
Media. Memory. Meme. Colin Bennett. Prime Time. ! !" #" $" #" %" &" '" ( =5#'5/# ">00# .56')# !"#$%#&'#$#($)*+(# ,+-+(+#.(&,&,#/&)*# )*+#$0&+',1#"#/&00# 8(5%# 2+#)$03&'4#)5#)*+%# )5'&4*)#$256)#%7# 86)6(+#$'9#/*$)# ?-+#)5# )*+7#/&00#5(#/&00# '5)#95#)5#%+1: 5'+# ;$-&9#<$.52, $'9# 2(&'4# 756# 56)#58# )*&,1 ")*("+,-(#."+/ 0!!#"1++-2 !"#$$%&'()*+ Vol. 24 No. 1 Issue # 154 !"#"$%&'()*+(,-./01** UFO Volume 24 • Number 1 columnists 6 Publisher’s Note: William J. Birnes 7 Saucers, Slips & Cigarettes: Dierdre O’Lavery 8 Rocket Scientist: Stanton T. Friedman 10 Outside the Box: Mike Good 12 Opinionated Oregonian: George W. Earley 14 Alien in the Attic: Farah Yurdözü 16 Coast to Coast AM: George Noory 17 An Alien View: Alfred Lehmberg 18 The Randle Report: Kevin D. Randle 20 21st Century News: Dr. Bob & Zohara Hieronimus 22 Truthseeking: Dennis Balthaser 24 Inner Space: Sri Ram Kaa and Kira Raa 26 View From A Brit: Nick Redfern 27 Bryant’s UFO View: Larry W. Bryant 28 The Orange Orb: Regan Lee 29 Beyond the Dial: Lesley Gunter 30 Mirror Images: Micah A. Hanks bits & bobs 32 Arlan’s Arcanae: Arlan Andrews, Sr. Say hello to Dierdre! She is a 74 Rick’s UFO Picks: Rick Troppman new columnist, she is on page 7, and she is sassy. To Alfred Lehmberg: A belated thank you for the great cover artwork of Richard toon Dolan in Issue #153. Thanks also must go to our 63 Bradley Peterson very very very patient readers. This issue has been a long time coming. Next one should be just a bit more prompt. UFO Issue 154 features 34 Aliens vs. -
Directions & Travel Guide
Accommodations Rio Grande Directory Travel Guide Rio Grande/Gallipolis • Athletic Director: Jeff Lanham Office: 740-245-7485 Cell: 740-441-5742 • Best Western e-mail: [email protected] 918 Second Ave. Gallipolis, OH 45631 ............... 740-446-3373 • Athletic Department Secretary: Wendy Hammons Office: 740-245-7293 Directions to Rio Grande • Hampton Inn Fax: 740-245-7555 444 State Route 7 N From Lexington, KY: (181 miles) Take I-64 Gallipolis, OH 45631 ............... 740-446-8000 • Sports Information Director: Randy Payton East toward Ashland. Exit off 64 East at the Office: 740-245-7213 Cell: 740-339-3632 Barboursville exit (EXIT 18) to Route 60/ • Quality Inn e-mail: [email protected] Route 2 North to Point Pleasant. Take US-35 577 State Route 7 N toward Chillicothe (cross bridge into Ohio). Gallipolis, OH 45631 ............... 740-446-0090 • Baseball Head Coach: Brad Warnimont Take the OH-325 exit toward Vinton/Rio Office: 740-245-7486 Cell: 740-208-7425 Grande and turn left. • Regency Inn e-mail: [email protected] 151 Upper River Road From Cincinnati: (131.66 miles) Take OH-32 Gallipolis, OH 45631 ................740-446-0241 • Men’s Basketball Head Coach: Ken French East toward Batavia. Merge of US 35 E. Take Office: 740-245-7294 Cell: 740-645-3035 the OH-325 Exit toward Vinton/Rio Grande • Riverside Motel e-mail: [email protected] and turn right. 1066 First Avenue Gallipolis, OH 45631 ...............740-446 -2702 • Women’s Basketball Head Coach: David Smalley From Columbus: (94.64 miles) Take I-270 Office: 740-245-7491 Cell: 740-709-4971 East (EXIT 101) toward Wheeling. -
INSPIRE Newsletter Fall 2020
Missouri University of Science and Technology Scholars' Mine INSPIRE Newsletters INSPIRE - University Transportation Center Fall 2020 INSPIRE Newsletter Fall 2020 Missouri University of Science and Technology. INSPIRE - University Transportation Center Follow this and additional works at: https://scholarsmine.mst.edu/inspire-newsletters Part of the Structural Engineering Commons Recommended Citation Missouri University of Science and Technology. INSPIRE - University Transportation Center, "INSPIRE Newsletter Fall 2020" (2020). INSPIRE Newsletters. 8. https://scholarsmine.mst.edu/inspire-newsletters/8 This Newsletter is brought to you for free and open access by Scholars' Mine. It has been accepted for inclusion in INSPIRE Newsletters by an authorized administrator of Scholars' Mine. This work is protected by U. S. Copyright Law. Unauthorized use including reproduction for redistribution requires the permission of the copyright holder. For more information, please contact [email protected]. TIER 1 UNIVERSITY TRANSPORTATION CENTER (UTC) Sponsored by the Office of the Assistant Secretary for Research and Technology in the U.S. Department of Transportation INSPECTING AND PRESERVING INFRASTRUCTURE THROUGH ROBOTIC EXPLORATION VOL. 4 | ISSUE 2 | (FALL) INSPIRE-UTC Biannual Publication Director’s Message Greetings colleagues and friends! Since our last newsletter, the INSPIRE UTC has held In this issue: a virtual annual meeting with its members and a graduate student poster competition. The center continues to host webinars on a quarterly basis, engaging attendees world- Director's Message wide on infrastructure and transportation related topics. Kummer Institute Donors In the largest single gift in the history of Missouri higher edu- cation, St. Louis businessman Fred Kummer and his wife June News have donated $300 million to a foundation that will support Forensic Bridge Research Missouri S&T. -
Arched Bridges Lily Beyer University of New Hampshire - Main Campus
University of New Hampshire University of New Hampshire Scholars' Repository Honors Theses and Capstones Student Scholarship Spring 2012 Arched Bridges Lily Beyer University of New Hampshire - Main Campus Follow this and additional works at: https://scholars.unh.edu/honors Part of the Civil and Environmental Engineering Commons Recommended Citation Beyer, Lily, "Arched Bridges" (2012). Honors Theses and Capstones. 33. https://scholars.unh.edu/honors/33 This Senior Honors Thesis is brought to you for free and open access by the Student Scholarship at University of New Hampshire Scholars' Repository. It has been accepted for inclusion in Honors Theses and Capstones by an authorized administrator of University of New Hampshire Scholars' Repository. For more information, please contact [email protected]. UNIVERSITY OF NEW HAMPSHIRE CIVIL ENGINEERING Arched Bridges History and Analysis Lily Beyer 5/4/2012 An exploration of arched bridges design, construction, and analysis through history; with a case study of the Chesterfield Brattleboro Bridge. UNH Civil Engineering Arched Bridges Lily Beyer Contents Contents ..................................................................................................................................... i List of Figures ........................................................................................................................... ii Introduction ............................................................................................................................... 1 Chapter I: History -
Arizona Historic Bridge Inventory | Pages 164-191
NPS Form 10-900-a OMB Approval No. 1024-0018 (8-86) United States Department of the Interior National Park Service National Register of Historic Places Continuation Sheet section number G, H page 156 V E H I C U L A R B R I D G E S I N A R I Z O N A Geographic Data: State of Arizona Summary of Identification and Evaluation Methods The Arizona Historic Bridge Inventory, which forms the basis for this Multiple Property Documentation Form [MPDF], is a sequel to an earlier study completed in 1987. The original study employed 1945 as a cut-off date. This study inventories and evaluates all of the pre-1964 vehicular bridges and grade separations currently maintained in ADOT’s Structure Inventory and Appraisal [SI&A] listing. It includes all structures of all struc- tural types in current use on the state, county and city road systems. Additionally it includes bridges on selected federal lands (e.g., National Forests, Davis-Monthan Air Force Base) that have been included in the SI&A list. Generally not included are railroad bridges other than highway underpasses; structures maintained by federal agencies (e.g., National Park Service) other than those included in the SI&A; structures in private ownership; and structures that have been dismantled or permanently closed to vehicular traffic. There are exceptions to this, however, and several abandoned and/or privately owned structures of particular impor- tance have been included at the discretion of the consultant. The bridges included in this Inventory have not been evaluated as parts of larger road structures or historic highway districts, although they are clearly integral parts of larger highway resources. -
Framework for Improving Resilience of Bridge Design
U.S. Department of Transportation Federal Highway Administration Framework for Improving Resilience of Bridge Design Publication No. FHWA-IF-11-016 January 2011 Notice This document is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for use of the information contained in this document. This report does not constitute a standard, specification, or regulation. Quality Assurance Statement The Federal Highway Administration provides high-quality information to serve Government, industry, and the public in a manner that promotes public understanding. Standards and policies are used to ensure and maximize the quality, objectivity, utility, and integrity of its information. FHWA periodically reviews quality issues and adjusts its programs and processes to ensure continuous quality improvement. Framework for Improving Resilience of Bridge Design Report No. FHWA-IF-11-016 January 2011 Technical Report Documentation Page 1. Report No. 2. Government Accession No. 3. Recipient’s Catalog No. FHWA-IF-11-016 4. Title and Subtitle 5. Report Date Framework for Improving Resilience of Bridge Design January 2011 6. Performing Organization Code 7. Author(s) 8. Performing Organization Report No. Brandon W. Chavel and John M. Yadlosky 9. Performing Organization Name and Address 10. Work Unit No. HDR Engineering, Inc. 11 Stanwix Street, Suite 800 11. Contract or Grant No. Pittsburgh, Pennsylvania 15222 12. Sponsoring Agency Name and Address 13. Type of Report and Period Covered Office of Bridge Technology Technical Report Federal Highway Administration September 2007 – January 2011 1200 New Jersey Avenue, SE Washington, D.C. 20590 14. -
Structural Behaviour of Cable-Stayed Bridges
Structural Behaviour of Cable-stayed Bridges by Elizabeth Davalos Bachelor of Science in Civil Engineering and Administration Universidad Panamericana sede Guadalajara, Mexico June 1998 Submitted to the Department of Civil and Environmental Engineering In partial fulfillment of the requirements for the Degree of MASTER OF ENGINEERING ENG IN CIVIL AND ENVIRONMENTAL ENGINEERING MASSACHUSETTS INSTITUTE OF TECHNOLOGY At the A3 0 2000 LIBRARIES MASSACHUSETTS INSTITUTE OF TECHNOLOGY May 2000 @2000 Elizabeth Davalos. All rights reserved The author hereby grants to MIT permission to reproduce and distribute publicity paper and electronic copies of this thesis document in whole or in part. Signature of the Author Ddpa ment of Civil and Environmental Engineering May 5, 2000 Certified by Professor Jerome J. Connor 6epartment of ivil and Environmental Engineering 7 Thesis Supervisor Accepted by Daniele Veneziano Chairman, Department Committee on Graduate Studies Structural Behaviour of Cable-stayed Bridges by Elizabeth Davalos Submitted to the Department of Civil and Environmental Engineering on May 5, 2000 in partial fulfillment of the requirements for the degree of Master of Engineering in Civil and Environmental Engineering. Abstract Cable-stayed bridges have emerged as the dominant structural system for long span bridge crossings during the past thirty years. That success is due to a combination of technical advancements and pleasing aesthetics attributes. The interaction of the various structural components results in an efficient structure which is continuously evolving and providing new methods to increase span lengths. The objective of this thesis is to describe in detail the basic structural behaviour of each of the components of cable-stayed bridges, and to present the analysis of a specific cable-stayed bridge which was proposed for the Charles River Crossing. -
Simple Suspension Bridge
structures STS19 Simple Suspension Bridge Experiment for the study of the characteristics of a simple suspension bridge. Mounts on the Structures platform and connects to the Structures automatic data acquisition unit and software (VDAS® Onboard). Shown fitted to the Structures platform (STS1, available separately) Laptop not included Key Features • One of a range of experiment modules that teach structures principles • Fits to the Structures platform for ergonomic use and space-saving storage • Includes multiple loads for many combinations of loads including uniformly distributed loads (UDLs) • A simplifi ed version of a realistic structure to give students an understanding of real-life structures • Direct measurement of cable tension for simple and quick experiments • Supplied with a storage tray to keep smaller items safe • Works with user-friendly software (VDAS®) TecQuipment Ltd, Bonsall Street, long eaton, Nottingham NG10 2AN, UK tecquipment.com +44 115 972 2611 [email protected] REF 0920 Page 1 of 3 STS19 Simple Suspension Bridge Description Learning outcomes One of a range of experiment modules that fi t to the • How bridge load aff ects the tension in a suspension Structures platform (STS1, available separately), this cable product helps students to understand how loads aff ect • Comparing a central point load with a UDL tension in the suspension cable supporting the ‘deck’ of a suspension bridge. Students add loads to the deck held by • Exploring the ratio of bridge ‘deck’ mass and a moving the suspension cable between two supports. A load cell in load the left-hand support measures the cable tension. • Comparing simple parabola-based theory with a more Students apply loads, which change the cable tension. -
Bascule Bridge Lightweight Solid Deck Retrofit Research Project
BASCULE BRIDGE LIGHTWEIGHT SOLID DECK RETROFIT RESEARCH PROJECT DECK ALTERNATIVE SCREENING REPORT FINAL FPID 419497‐1‐B2‐01 Prepared for: Florida Department of Transportation Structures Design Office Prepared by: URS Corporation, Inc. 7650 West Courtney Campbell Causeway, Suite 700 Tampa, Florida 33607 May 14, 2012 TABLE OF CONTENTS 1.0 INTRODUCTION AND EXECUTIVE SUMMARY ................................................................................... 1 1.1 PROJECT NEED ............................................................................................................................... 1 1.2 DECK SELECTION FACTORS ............................................................................................................ 2 1.2.1 General .................................................................................................................................. 2 1.2.2 Weight Considerations .......................................................................................................... 3 1.2.3 Deck Thickness Considerations ............................................................................................. 5 1.2.4 Deck Attachment Considerations ......................................................................................... 6 1.2.5 Bascule Leaf Framing System Considerations ....................................................................... 6 1.2.6 Constructability Considerations ............................................................................................ 7 1.2.7 Design Considerations -
Florida Department of Transportation Bridge Inventory 2015 Annual Report
Florida Department of Transportation Bridge Inventory 2015 Annual Report August 2015 Office of Maintenance John D. Clark P.E. Bridge Inventory - 2015 Annual Report Table of Contents Page Introduction................................................................................................................ 1 Number of Bridges..................................................................................................... 1 Age of Bridges........................................................................................................... 6 Types of Bridge Superstructures............................................................................... 14 Deck Area of the Bridge Inventory............................................................................. 21 Overall Structural Condition...................................................................................... 30 Structurally Deficient Bridges.................................................................................... 39 Posted and Closed Bridges....................................................................................... 43 Functionally Obsolete Bridges................................................................................... 50 Bridge Replacement Cost......................................................................................... 54 Conclusion................................................................................................................. 65 List of Tables Page Table 1 Bridge Inventory By Decade Built Statewide