This study is a method to improve the reliability and effectivity of maintenance. It is necessary to build the integrated management system of BIM throughout the design, construction and maintenance of the structure. In order to apply BIM, it was introduced structural record management from the design stage. And It helps to improve the reliability of maintenance.

The number of expressway structure management is continuously increasing, and the aging of structures is proceeding rapidly. In order to secure the safety of expressway structures, we propose improvement methods such as advancement of structure management system, lifetime improvement methods such as prevention of structure deterioration, and the preemptive reflection of the structure maintenance budget.

As a result to check basic physical characteristics of plyood and fabric board, both of them satisfied the criteria of KS F 3126 but hardened fabric board only showed changes in the absorption width expansion rate. This may imply that continuous expansion and swelling can occur if hardened fabric board is exposed to moisture for longtime, and it should be considered when selecting a product and mainteaning it.

As a result of abrasion resistance test of decoration wood-based flooring board laminated with PVC on plywood, compared to the flooring board laminated with general HPL surface decoration materials, it was available to secure far higher abrasion resistance. It seems to contribute to secure initial durability and maintenance of decoration wood-based flooring board as an important means, and it might be available for saving repair and maintenance costs due to flooring board issues.

Recently, there are few cases of the Precise Inspection for Safety and Diagnosis for transverse crack of CFRD. The presumable causes and characteristics of transverse cracks have suggested in this paper based on field survey and related NDT. Also, the maintenance of transverse crack of CFRD are proposed.

In the Gangwon province, severe freezing damage to road tunnels are occurred due to freezing condition such as snowfall, cold waves and icing. As a result, serious damage occurs on the lining and road surface of the tunnel entrance and exit. Therefore, it is necessary to develop appropriate mitigation methods to protect damage to people and property by freezing. In this paper, we introduce that the trend of research for reducing the freezing damage and the required performance to be secured for the maintenance of road tunnels in cold region and the future research plans.

The purpose of this study was to suggest the foundation of LDA-based model for infrastructure maintenance cost evaluation. The LDA-based model enables to evaluate not only overall maintenance cost, but also various combination of each cell of risk matrix.

This paper aims to develop a wireless unified-maintenance system(WUMS) to obtain real-time structural response of civil structures. The WUMS integrates the GPS module, the strain module and the acceleration module based on the standalone controller, and includes the RF module for remote measurement and the battery for long term operation. In order to evaluate the performance of the WUMS, a response test using a modal shaker and a modal test using a model bridge were performed. The test results using USMS were compared with those measured by wired system. Finally, the developed WUMS was appropriate to obtain the structural response of the civil structure in real-time, unified, and wirelessly.

In the case of Anchang Village, from the beginning of the project, public administration made an effort to have unique power by agreement with private organizations. Continue to be linked the civil society and the residents to protect the wisdom of the village and the policies of power generation from the start of the project. Even now the results are actively demonstrated. From this point, it is necessary to encourage private organizations to participate in future town planning projects. As a measure to that, it suggests that Corporate Social Responsibility within the region and local universities are to be linked the village.

Recently, there are few cases of the Precise Inspection for Safety and Diagnosis for transverse crack of CFRD. The presumable causes and characteristics of transverse cracks have suggested in this paper based on field survey and related NDT. Also, the maintenance of transverse crack of CFRD are proposed

In the Gangwon province, severe freezing damage to road tunnels are occurred due to freezing condition such as snowfall, cold waves and icing. As a result, serious damage occurs on the lining and road surface of the tunnel entrance and exit. Therefore, it is necessary to develop appropriate mitigation methods to protect damage to people and property by freezing. In this paper, we introduce that the trend of research for reducing the freezing damage and the required performance to be secured for the maintenance of road tunnels in cold region and the future research plans.

The purpose of this study was to suggest the foundation of LDA-based model for infrastructure maintenance cost evaluation. The LDA-based model enables to evaluate not only overall maintenance cost, but also various combination of each cell of risk matrix.

This paper aims to develop a wireless unified-maintenance system(WUMS) to obtain real-time structural response of civil structures. The WUMS integrates the GPS module, the strain module and the acceleration module based on the standalone controller, and includes the RF module for remote measurement and the battery for long term operation. In order to evaluate the performance of the WUMS, a response test using a modal shaker and a modal test using a model bridge were performed. The test results using USMS were compared with those measured by wired system. Finally, the developed WUMS was appropriate to obtain the structural response of the civil structure in real-time, unified, and wirelessly.

In the case of Anchang Village, from the beginning of the project, public administration made an effort to have unique power by agreement with private organizations. Continue to be linked the civil society and the residents to protect the wisdom of the village and the policies of power generation from the start of the project. Even now the results are actively demonstrated. From this point, it is necessary to encourage private organizations to participate in future town planning projects. As a measure to that, it suggests that Corporate Social Responsibility within the region and local universities are to be linked the village.