Inspection and Maintenance Management for Concrete Bridges at JR East

The objective of this article is to identify and analyze the main pathological manifestations in bridges in the Chapare - Bolivia region, an area characterized by high humidity and constant rainfall throughout the year. The methodology consisted of the selection of five bridges that showed evident signs of deterioration, in which a visual inspection was carried out and, subsequently, different tests: sclerometer, carbonation depth, penetration of chlorides and core extraction. All the bridges present advanced states of deterioration; highlighting corrosion as the main problem, generating detachment of the concrete and risk of collapse. Although the concrete has a compression strength greater than 30 MPa, the existing carbonation process and the different problems encountered compromises it. It is necessary that the entities in charge provide inspection and maintenance programs according to the environmental and structural characteristics of each bridge.

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Research and application of bridge inspection and maintenance management system

2016 7th IEEE International Conference on Software Engineering and Service Science (ICSESS) ◽

10.1109/icsess.2016.7883065 ◽

2016 ◽

Author(s):

Jun Zhang ◽

Hong Liang ◽

Fen Chen ◽

Ya-Qing Li

Keyword(s):

Management System ◽

Maintenance Management ◽

Bridge Inspection ◽

Inspection And Maintenance

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Using Computerized Maintenance Management System (CMMS) in Healthcare Equipment Maintenance Operations

Journal of Environmental Treatment Techniques ◽

10.47277/jett/8(4)1350 ◽

2020 ◽

Vol 8 (4) ◽

pp. 1345-1350

Keyword(s):

High Performance ◽

Medical System ◽

Maintenance Management ◽

Healthcare Sector ◽

Equipment Management ◽

Equipment Maintenance ◽

Maintenance Period ◽

Computerized Maintenance Management System ◽

Inspection And Maintenance

Healthcare and medical equipment sustainability is very important, we need to have an efficient and high performance devices. If such systems or devices are fail every time this will effect patients and the medical system at all. Healthcare equipments like ventilators and other devices nowadays has a good priority and important because of Covid19 which effects all countries now. Since these devices exposed some defects which will effect on its role it is very important to study and analyze such defects, classify them and how to apply CMMS in such maintenance operations. This paper aims to use CMMS in maintenance operations of equipments in healthcare sector. Also a classification of failures of such equipments is generated to be an input for CMMS programs. The second thing is to use Equipment maintenance (EM) number in classifying such devices to be ready for using CMMS. A sample of medical devices are studied and the equipment management number (EM) is calculated here for some selected devices if it reaches some specific value it needs maintenance and CMMS will manage the maintenance operations required. CMMS procedures, transactions and benefits are discussed in this paper. It is found that in the first step we should determine the devices included in inspection and maintenance operations by using EM number, then specifying the maintenance period and inspection frequency after that following some specific steps to manage the maintenance operations followed by CMMS programs. Equipment maintenance (EM) number is very important to determine whether the equipment need maintenance or not, and it also determine the inspection and maintenance duration and so such devices be ready to be used all the time. CMMS can be efficiently used in maintenance operations of healthcare equipments. The use of CMMS software or application is used in processing entered data of devices or systems following the commands step-by-step to construct a CMMS system for each plant or system, this will simplify the monitoring and inspections and maintenance operations which increasing availability of the device and decreasing downtime

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A Multi-Hazard Framework for Optimum Life-Cycle Cost Design of Reinforced Concrete Bridges

Structural Seismic Design Optimization and Earthquake Engineering ◽

10.4018/978-1-4666-1640-0.ch004 ◽

2012 ◽

pp. 76-104 ◽

Cited By ~ 1

Author(s):

Azadeh Alipour ◽

Behrouz Shafei ◽

Masanobu Shinozuka

Keyword(s):

Life Cycle ◽

Reinforced Concrete ◽

Life Cycle Cost ◽

Fragility Curves ◽

Chloride Ions ◽

Concrete Bridges ◽

Structural Capacity ◽

Regular Time ◽

Corrosion Initiation Time ◽

Inspection And Maintenance

This chapter provides a comprehensive procedure for the time-dependant structural performance evaluation and life-cycle cost analysis of reinforced concrete highway bridges located in extreme chloride-laden environments. The penetration of chloride ions into the concrete is simulated through a finite difference approach, which takes into account all the parameters that can affect the corrosion process. From simulation results, the corrosion initiation time is predicted and the extent of structural degradation is calculated over the entire life of bridge. A group of detailed bridge models with various structural attributes are developed to evaluate the changes in the structural capacity and seismic response of corroded bridges. For the purpose of the probabilistic seismic risk assessment of bridges, the seismic fragility curves are generated and updated at regular time intervals. The time-dependent fragility parameters are employed to investigate the life-cycle cost of bridges by introducing a performance index which combines the effects of probable seismic events and chloride-induced corrosion. The proposed approach provides a multi-hazard framework, which leads to more realistic performance and cost estimates. It also indicates the inspection and maintenance intervals in a way that the inspection and maintenance costs are optimized, while the safety of bridge is ensured.

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