Reliability Assessment of Highway Bridges Based on Combined Empowerment–TOPSIS Method

(1) In recent years, with the continuous increase of the state’s investment in infrastructure, the construction of highways and bridges has developed rapidly, which has brought great conven-ience to people’s lives. At the same time, with the increase of bridge service time, the reliability of bridge...

Full description

Bibliographic Details
Main Authors: Li, Q. (Author), Qi, N. (Author), Xu, B. (Author), Zhou, J. (Author)
Format: Article
Language:English
Published: MDPI 2022
Subjects:
Online Access:View Fulltext in Publisher
LEADER 02883nam a2200241Ia 4500
001 10.3390-su14137793
008 220718s2022 CNT 000 0 und d
020 |a 20711050 (ISSN) 
245 1 0 |a Reliability Assessment of Highway Bridges Based on Combined Empowerment–TOPSIS Method 
260 0 |b MDPI  |c 2022 
856 |z View Fulltext in Publisher  |u https://doi.org/10.3390/su14137793 
520 3 |a (1) In recent years, with the continuous increase of the state’s investment in infrastructure, the construction of highways and bridges has developed rapidly, which has brought great conven-ience to people’s lives. At the same time, with the increase of bridge service time, the reliability of bridges declines. In order to meet the requirements of sustainable development, it is necessary to accurately evaluate the reliability of bridges. However, most of the existing evaluation methods have single-weighting and one-sidedness. There are problems such as strong subjectivity and overly simple evaluation procedures. Therefore, it is urgent to establish a new scientific bridge reliability evaluation system. (2) Methods. In this paper, a bridge superstructure is taken as the research object, and the “Technical Condition Assessment Standard for Highway Bridges” (JTG/T H21-2011) is used as the criterion to establish a bridge reliability evaluation index system. The subjective and objective weights of the evaluation indicators are based on minimum discriminant information. Each evaluation indicator is combined and weighted; then, the closeness of each evaluation object to the posi-tive ideal solution is determined according to Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). Finally, the reliability level of each evaluation object is determined. (3) Re-sults. Reliability evaluation of the three-span superstructure of the bridge was carried out, and final reliability evaluation results of “Grade 2, Grade 2, Grade 2” were obtained, which are consistent with the actual working state of the bridge. (4) Conclusions. The evaluation results of this paper are consistent with the results obtained by the traditional AHP–Extenics method, but the evaluation model of this paper adopts combined weighting, which avoids the one-sidedness of the weighting of a single method—thus, the comprehensive weight obtained not only reflects the subjective inten-tion of decision makers, but also reflects the objective properties of the data. © 2022 by the authors. Licensee MDPI, Basel, Switzerland. 
650 0 4 |a combined assignment 
650 0 4 |a entropy weighting 
650 0 4 |a hierarchical analysis 
650 0 4 |a highway bridges 
650 0 4 |a reliability assessment 
650 0 4 |a TOPSIS 
700 1 |a Li, Q.  |e author 
700 1 |a Qi, N.  |e author 
700 1 |a Xu, B.  |e author 
700 1 |a Zhou, J.  |e author 
773 |t Sustainability (Switzerland)