Decision Method of Bridge Deck Pavement Maintenance Based on the Decision Maker’s Objective

Xiaofei Liang,Zhongmei Li,Jun Shi,Luigi Aldieri

doi:10.1155/2021/5593722

Abstract

The performance of reinforced concrete bridge deck pavement will be gradually reduced with the increase of operation time, so the reasonable maintenance measures should be taken to ensure the performance and safety of the bridge structures. The objectives and their hierarchical structures from both state position and enterprise position of the decision makers in bridge engineering decision-making problems were discussed. By the existing deterioration model, this paper studies the bridge operation safety maintenance strategy, establishes the mathematical model of the influence of different degrees of maintenance measures on the structural performance, combines with the cost-benefit theory, establishes the maintenance risk decision criteria for the decision makers with different objectives, and makes the decision on the selection of the bridge deck pavement scheme based on the enterprise position through an example.

Highlights

With the aging of existing bridges, the maintenance of operating bridges becomes very important [1]. rough the detection of the operating bridge, the deterioration of the bridge can be found in time, and the corresponding repair measures can be taken to ensure the safe operation of the bridge [2, 3]
Bian et al studied the maintenance and reinforcement decision-making of service bridges based on reliability and the influence of maintenance on reliability and maintenance cost [4]
Most of the above research studies are based on the reliability theory of bridge safety and take the cost-benefit theory of the lowest cost in the broad sense as the control condition to establish the model to solve the optimal remaining service life of the operating bridge. is kind of research mainly focuses on the theoretical framework construction level, and the research on the maintenance strategy based on time-varying reliability is still in its infancy. rough combining and integrating the existing research results, this paper forms a bridge maintenance decision-making method based on the goal of the decision maker

Summary

Introduction

With the aging of existing bridges, the maintenance of operating bridges becomes very important [1]. rough the detection of the operating bridge, the deterioration of the bridge can be found in time, and the corresponding repair measures can be taken to ensure the safe operation of the bridge [2, 3]. Most of the above research studies are based on the reliability theory of bridge safety and take the cost-benefit theory of the lowest cost in the broad sense as the control condition to establish the model to solve the optimal remaining service life of the operating bridge. Rough combining and integrating the existing research results, this paper forms a bridge maintenance decision-making method based on the goal of the decision maker. Based on the deterioration model of reliability index, this method studies the maintenance strategy of bridge operation safety, establishes the mathematical model of the influence of different degrees of maintenance measures on the structural performance, and establishes the maintenance risk decision-making methods for decision makers with different objectives combined with the cost-benefit theory

Types and Objectives of Decision Makers

Decision-Making Process

Deterioration Model

Maintenance Strategy Model

Findings

No maintenance