Reliable Assessment Methods for Steel Girders in the Bridge Condition Rating

Author(s):  
R. Hamid ◽  
Khairullah . ◽  
A. K. Arashid
2011 ◽  
Vol 9 (1) ◽  
pp. 11-22 ◽  
Author(s):  
A.R. Khalim ◽  
D. Sagar ◽  
M.D. Kumruzzaman ◽  
A.S.M.Z. Hasan

Non-destructive evaluation (NDE) has offered unprecedented utilize for bridge management body to monitor structural health. None of these evaluation methods can provide all the damage information (damage category, quantitative assessment) alone which is required for necessary repair activity and condition rating of structure. In most of the cases, the response of one evaluation method implies the presence of a defect among the multiple defects to which the evaluation method is sensitive. This paper is concerned with the combination of different non-destructive testing to find out the type of damage with the most efficient way. The different response (positive or negative) obtained from each combination and how it confirms the defect is shown through the mathematical set operation. Thus, this study would assist field investigator to ascertain the type of defect which subsequently aids to rate structure based on damage type.


2016 ◽  
Vol 29 (3) ◽  
pp. 240-250 ◽  
Author(s):  
Lokke Gennissen ◽  
Lorette Stammen ◽  
Jolien Bueno-de-Mesquita ◽  
Sietse Wieringa ◽  
Jamiu Busari

Purpose It is assumed that the use of valid and reliable assessment methods can facilitate the development of medical residents’ management and leadership competencies. To justify this assertion, the perceptions of an expert panel of health care leaders were explored on assessment methods used for evaluating care management (CM) development in Dutch residency programs. This paper aims to investigate how assessors and trainees value these methods and examine for any inherent benefits or shortcomings when they are applied in practice. Design/methodology/approach A Delphi survey was conducted among members of the platform for medical leadership in The Netherlands. This panel of experts was made up of clinical educators, practitioners and residents interested in CM education. Findings Of the respondents, 40 (55.6 per cent) and 31 (43 per cent) participated in the first and second rounds of the Delphi survey, respectively. The respondents agreed that assessment methods currently being used to measure residents’ CM competencies were weak, though feasible for use in many residency programs. Multi-source feedback (MSF, 92.1 per cent), portfolio/e-portfolio (86.8 per cent) and knowledge testing (76.3 per cent) were identified as the most commonly known assessment methods with familiarity rates exceeding 75 per cent. Practical implications The findings suggested that an “assessment framework” comprising MSF, portfolios, individual process improvement projects or self-reflections and observations in clinical practice should be used to measure CM competencies in residents. Originality/value This study reaffirms the need for objective methods to assess CM skills in post-graduate medical education, as there was not a single assessment method that stood out as the best instrument.


Author(s):  
Mario A. Polanco-Loria ◽  
Håvar Ilstad ◽  
Erik Levold

Accidents by trawling impact have the potential of environmental consequences, in terms of safety, monetary values and reputation. Aware of this situation a technology development plan on “Pipeline subject to high interference loads” has been established at STATOIL in close collaboration with GASSCO. The overall achievement is to adapt and introduce more reliable assessment methods in the load and response of pipelines under a trawling impact scenario. This work includes a review of some known force-indentation models appeared in the literature. Some comments on the recently updated version of the DNV-RP-F111 document. Next, the description of the numerical results of 12 analyses of steel pipes studied is described and based on these results a new force-dent proposal is presented. The proposed equations are validated against experimental tests and the findings indicated fairly good predictions as indicated in the conclusions.


Author(s):  
Anastassis Kozanitis ◽  
Guy M. Cloutier

“CEAB 2014” affects student assessment methods. There is a risk of an increased workload, as assessing for grading in a course and for the possession of attributes are “distinct matters”. Here is a rationale for assessment of learning outcomes, with an overview of methods and issues to consider when designing and using assessment of attributes in relation to CEAB’s accreditation criteria. To increase their performance, students need ‘educative assessments’, anchored in authentic tasks and with feedback usable to improve performance. At École Polytechnique de Montréal, a committee studies this issue, in both project modules and internships. The initiative aims to give students a more active role, engaging them in deep experiential learning. It faces the challenge to recommend effective and reliable assessment methods for student grading, also meeting the new requirements of CEAB with current resources. Association with other Canadian institutions is sought to continue the discussion.


2021 ◽  
Vol 11 (3) ◽  
pp. 1021
Author(s):  
Katarina Rogulj ◽  
Jelena Kilić Pamuković ◽  
Nikša Jajac

A systematic methodology for condition assessment of the historic road bridges was needed because of the poor and inadequate condition of bridges which cannot satisfy everyday-day dynamic loads and deteriorations due to the aging process. Thus in this study, a new expert system based on the knowledge approach has been proposed to develop a systematic procedure for condition assessment of these bridges using fuzzy logic and sets of α-cuts. Each bridge is divided into three components: superstructure, substructure, and equipment, and each component is divided into relevant elements. These elements are evaluated by an expert and their ratings are fuzzified according to defined fuzzy sets, their membership functions, and linguistic values. Furthermore, fuzzy structural importance is given to ratings of each element. Combinations of these two values are calculated to obtain a fuzzy rating of the component using the Fuzzy Weighted Geometric Mean (FWGM). Finally, for the defuzzification of the component rating, the centroid method is proposed. The Analytic Hierarchy Process (AHP) is used for comparison of the components. The bridge condition rating is achieved by summering all the components ratings multiplied by their relative importance, and it is presented as a value of the Historic Road Bridge Condition Assessment Index (HRBCAI). The validation is conducted on the bridges built until the end of the Austro-Hungarian Monarchy in Split-Dalmatia County, Croatia.


2020 ◽  
Vol 3 (1) ◽  
pp. 443-451
Author(s):  
Wilhman Harywijaya ◽  
Mochammad Afifuddin ◽  
Muhammad Isya

The bridge assesment and checking is an effort to gain well performance and vouch the decline condition of the bridge to ensure the bridges could be restored back under it stability basedits performance. Nowadays, the bridge inspections were carried out independently by the Perencanaan dan Pengawasan Jalan Nasional (P2JN) by using the Bridge Management control System (BMS). Referring to the latest bridge indicators, the bridge checks are carried out by tender system and consultants. The aim of this study is to check the bridge damage by isnpecting the condition value and damage code in the field by using BMS and Bridge Condition Rating (BCR) in order to obtain the accuracy in bridge maintenance. This research was conducted on 4 Bridges on the road Kr. Raya-BTS. Banda Aceh and Lambaro-BTS. Pidie, those are Kr. Angan bridge (STA. 013 + 400), Kr. Inong bridge (STA. 040 + 600), Kr. Geunapet A bridge (STA. 063 + 700), and Kr. Geunapet B bridge (STA. 063 + 700). Based on the BMS method, the writer found that Kr. Angan bridge was in 0 condition value,  the condition value for Kr. Inong bridge was  2,  the condition value for Kr. Geunapet A bridge was 0 and Kr. Geunapet B bridge was 0. Based on the results by using BCR method, it can be seen that the condition value for Kr. Angan bridge was 5.36, 5,52 for Kr. Inong bridge, 5,28 for the Kr. Geunapet A and 5,28 for Kr. Geunapet B. In the method of BMS the assessment of the condition of the bridge from good to bad starts from a small to large values namely from 0 to 5, while in the method of crack the assessment of conditions starting from bad to good is 7 to 1. Furthermore, referring to the  BMS and BCR comparison, it could be concluded that both BMS and BCR needed the same proposed treatment in form of regular and periodic maintenance. For some components of the bridge handling is needed in the form of repairs such as repairing cracks in the concrete, as well as repairs to the expansion joint. While in the BCR method there was no assessment to handle floor drainage systems, backrests and safety building.


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