TRID
Text Size:

Title:

EVALUATION OF THE SUNSHINE SKYWAY BRIDGE LIGHTNING PROTECTION SYSTEM. FINAL REPORT

Accession Number:

00667753

Record Type:

Monograph

Availability:

National Technical Information Service

5301 Shawnee Road
Alexandria, VA 22312 USA

Abstract:

A linear lumped circuit is developed to model the Sunshine Skyway Bridge grounding system. Careful considerations are given to the effects of resistance, inductive reactance, and capacitive reactance to account for the distributive nature of copper strap line segments used in the grounding system. The first step in this effort is to carefully evaluate the line parameters per unit length using quasistatic techniques. In particular, to ensure the practical significance of the model, the line capacitance and conductance are determined based on measurement data. A II-equivalent circuit is then derived by transforming transmission line equations with proper termination conditions imposed. The complete circuit model is finally formed by properly connecting these II-equivalent circuits. SPICE analysis has been successfully applied to such network of II-equivalent circuits. Finally, recommendations are presented for immediate action on urgent issues pertaining to: (1) the monitoring of lightning strikes; (2) the upgrade of the lightning protection system; and (3) the deployment of fiber optic systems.

Report/Paper Numbers:

FL/DOT/RMC/0654-7785
State Job 99700-7101-010
WPI 0510654

Contract Numbers:

B-7785

Language:

English

Corporate Authors:

Florida State University, Tallahassee

Department of Electrical Engineering, P.O. Box 2175
Tallahassee, FL 32316-2175 USA

Florida Department of Transportation

Haydon Burns Building, 605 Suwanee Street
Tallahassee, FL 32301 USA

Authors:

Kwan, B W
Tung, L J

Pagination:

72 p.

Publication Date:

1994-9

Period Covered:

9301-9404

Features:

Appendices (2) ; Figures; References (6)

Uncontrolled Terms:

Old TRIS Terms:

Subject Areas:

Bridges and other structures; Design; Highways; Security and Emergencies; I24: Design of Bridges and Retaining Walls

Files:

TRIS, STATEDOT

Created Date:

Oct 26 1994 12:00AM