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Titanium Bridge Report.docx - GREAT AMERICAN MOTORCYCLE TOURING

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The basis of conceptual design for the pedestrian bridge is a basket handle arch.Our analysis will allow us decide whether individual support elements

    Department of Civil Engineering and Materials Science

    10200 Euclid Avenue

    Cleveland OH 44106

    www.case.edu

Team Members and Contact Information

     Professor Dario Gasparini Ph.D.

     Professor of Civil Engineering Case Western Reserve University

     Team Advisor

    dag6@case.edu 216-368-2699

     http://civil.case.edu/people/dag6

    Kenneth Craymer Graduate Student, Materials Science and Engineering

     klc21@case.edu

    Julia German Undergraduate, Materials Science and Engineering

     jmg91@case.edu

    William Holman Jr. Undergraduate, Department of Civil Engineering

     wxh68@case.edu

    Kane Riggenbach Undergraduate, Department of Civil Engineering

     krr18@case.edu

    Introduction

    Table of Contents I. Design Criteria Review

    A. DMTC Requirements

    B. CSX Railroad Requirements II. Conceptual Design

    A. Introduction to Design

    B. Inspiration for Design

    C. Design Logic and Structural Importance.

    D. Design Conclusions

    III. Continued Design Process

    A. Structural Analysis

    B. Constructability

    C. Lighting

    IV. References

    I. Design Criteria Review

    The conceptual design process was guided by the Defense Metals Technology Center (DMTC) and CSX Transportation (CSXT) and local building code requirements. It was critical for the design team to calculate both aspects into the design for a successful project. In doing so, this design integrates all necessary requirements.

A. DMTC Requirements

    The DMTC has required all the structural components to be Titanium, be it

    commercial or armor grade. Also during the orientation lunch, the panel

    requested a United States Titanium supplier to help support the national

    economy. On the side of the Quaker Square Inn, the bridge must also tie in with

    the second floor balcony to allow elevator access for the handicapped. Finally,

    the panel recommended the opposing side of the bridge allow potential

    integration with a new building but currently exit the deck onto the parking lot.

B. CSXT Requirements

    The CSXT requirements were far more complex for traversing the Right of Way

    1(ROW) of the tracks. The most pertinent requirements are noted as:

    1. Clearance- The standard horizontal clearance is typically 25’ but no

    less than 18’ perpendicular to the tracks. The vertical clearance

    standard measured from the top of the track to the lowest point on

    the bridge shall not be smaller than 23’.

    2. Drainage- Drainage from the bridge shall be collected by drain pipes

    and cannot dump inside of the 25’ clearance mark.

    3. Pedestrian Bridge Specific No intermediate piers are permitted

    between the tracks and bridges must be completely enclosed to

     1 The requirements were given by the DMTC to each team and are available online at

    http://transportation.ky.gov/contract/Memos/CSX%20Criteria%20for%20Overhead%20Bridges.pdf

    prevent users from dropping debris onto the track. The below image

    best summarizes the distance requirements and was taken directly

    from CSX.