00714812

Component

http://onlinepubs.trb.org...trr/1995/1490/1490-005.pdf

https://scholar.google.co...Cady&publication_year=1995

Cost information on chemical and physical techniques for concrete bridge protection and rehabilitation is provided. This information constitutes an essential component in determining life-cycle costs for ranking alternative protection and rehabilitation techniques. Most of the cost data were obtained from bid tabulations provided by state highway agencies (SHAs). Fourteen SHAs and two toll road agencies were visited and 12 of these provided bid tabulation data. The costs obtained from bid tabulations were converted to mid-1991 national average values by using published cost indexes. The national average cost data for each protection and rehabilitation treatment were then subjected to detailed statistical analysis to develop cost models reflecting the effects of four independent variables: work quantity, number of bids, total contract cost, and cost of maintenance and protection of traffic. Eight combinations of these four variables were developed to be the independent variables in the regression analysis. An inverse power model was used. The ultimate choice of factors in each case rested with the regression coefficient (R-squared).

This paper appears in Transportation Research Record No. 1490, Management and Maintenance of Bridge Structures. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01399803

English

p. 32-42

1995

Transportation Research Record

0309061547

Figures (1) ; References (10) ; Tables (4)

Bids; Concrete bridges; Costs; Data collection; Driver rehabilitation; Protection; Regression analysis; Statistical analysis; Variables

Cost data; Cost models; Rehabilitation

Administration and Management; Bridges and other structures; Data and Information Technology; Design; Finance; Highways; Maintenance and Preservation; Security and Emergencies; I24: Design of Bridges and Retaining Walls; I60: Maintenance

TRIS, TRB

Nov 30 1995 12:00AM

• BRIDGE ELEMENT DETERIORATION RATES
• BRIDGE REPLACEMENT COST ANALYSIS PROCEDURES
• BRIDGIT DETERIORATION MODELS
• DETERMINATION OF END OF FUNCTIONAL SERVICE LIFE FOR CONCRETE BRIDGE DECKS
• GRAVITY-FILL POLYMER CRACK SEALERS
• MECHANISM OF ACTION OF CORROSION-INHIBITED HIGHWAY DEICERS
• SERVICE LIFE EVALUATION OF CONCRETE SURFACE COATINGS
• SERVICE LIVES OF CONCRETE SEALERS
• USE OF HYDRODEMOLITION TO REMOVE DETERIORATED CONCRETE FROM BRIDGE DECKS
• USE OF NEURAL NETWORKS IN BRIDGE MANAGEMENT SYSTEMS