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COST RELATIONSHIPS FOR CONCRETE BRIDGE PROTECTION, REPAIR, AND REHABILITATION.
| 题名： | COST RELATIONSHIPS FOR CONCRETE BRIDGE PROTECTION, REPAIR, AND REHABILITATION. |
| 作者： | Gannon-EJ; Weyers-RE; Cady-PD |
| 关键词： | CONCRETE-BRIDGES; PROTECTION-; REHABILITATION-; COST-DATA; BIDS-; DATA-COLLECTION; STATISTICAL-ANALYSIS; COST-MODELS; VARIABLES-; REGRESSION-ANALYSIS |
| 摘要： | 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). |
| 总页数： | Transportation Research Record. 1995. (1490) pp32-42 (1 Fig., 4 Tab., 10 Ref.) |
| 报告类型： | 科技报告 |
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