• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.258-261
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• 2003

Demolition is mort dangerous than construction and causes a lot of harmful environmental factors. But temporary fences used on demolition sites cannot play out their roles of blocking harmful environmental factors or securing stability and work space. They only block the view from the outside. This study begins with the possibility that the temporary fence can be installed prior to demolition. As a preceding step. we performed research on the actual conditions of using it. We then realized that it can be installed according to our research plan. First, we focused on actualizing the integration of temporary fences for demolition and construction. Here are the results of this study. First, we need to grasp the limiting factors of integration. Second, we ought to revise the Korean Architecture Standard Specification. Third, we should prepare against damage and transformation of fences. Finally, we can expect to reduce harmful environmental factors, cut down expenses, improve the working environment and raise the image of demolition by the integration of these fences.

• The Safety technology
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• no.73
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• pp.18-23
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• 2004

• The Safety technology
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• no.74
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• pp.22-27
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• 2004

• Korean Journal of Construction Engineering and Management
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• v.18 no.1
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• pp.83-89
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• 2017

Temporary structures provide the accessible working area when building a permanent building structure in the construction operation. Executed in a natural environment, the temporary structure is prone to the external influence factors of underground water, soil conditions, etc. These factors should be carefully considered in designing the temporary structure. The objective of this study is to apply the external influence factors in designing a more reliable earth retaining wall. The research methodology is based on the Taguchi method that has been studied to improve product quality in the industry. An orthogonal array was developed to analyze the interaction between the external influence factors and the internal influence factors. A sample case study demonstrated that the Taguchi method can be used in planning a more reliable temporary structure for earth retaining walls.

• Journal of the Korean Institute of Rural Architecture
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• v.5 no.3
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• pp.1-7
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• 2003

This study is to find out the betterment way of cost down in the architectural temporary work. To do so, it is more important to check every case above all and find and choice optimum way fitting a scene of a construction field. In addition, in case that the way to apply in proportion to a given condition is complicated, the way to find out cost down way is to adopt the individual peculiarity instead of the generality. Hereupon this study is rather to find out the better way to reduce such as material and manpower cost than to leave matters not to be settled to get the best way in the existing temporary work. So this study is composed with finding the existing problems, fixing the focus about the developmental way to reduce cost in the exterior and interior temporary work, presenting the new construction way and describing the merits and attentions of an improved exterior and interior temporary work.

• Korean Journal of Construction Engineering and Management
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• v.1 no.3 s.3
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• pp.108-115
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• 2000

The average height of buildings in most cities is increasing in an effort to more effectively use land. In addition, as construction technology develops, rapid construction methods have been pursued. However, while there have been great strides in construction technology, the development of a temporary structure that can support the high-rise building under construction and the rapid construction methods has been relatively limited. If the temporary structure is not built on an outer wall of a building being constructed, a worker may be injured or killed in a fall and building materials such as blocks and other objects may fall to the ground, causing the build-up of trash around the building and possible injuries to persons in proximity to the building. This paper proposes a Self Climbing Safety Fence for construction building(SCfence). SCfence was developed to solve the above problems, a tent has been setup to cover the outer wall of the building, or a falling preventing net has been pitched in a direction perpendicular to the outer wall of the building. A case study was performed to verify the validity of SCfence through comparing the safety and cost experience between SCfence and the existing method.

• Proceedings of the Korea Concrete Institute Conference
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• 2008.11a
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• pp.229-232
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• 2008

In rapid cycle construction, RC structure which is not cured fully can be loaded with construction load and this construction load can influence on the safety of construction and cracks on slabs. Therefore, to reduce the term of construction, the safety of construction and prevention of cracks should be assured against construction load. In the previous study, temperature load can significantly influence on the behavior of structure under construction. However, existing construction sequential analysis or design code do not consider temperature load reasonably. In the present study, through construction sequential analysis method using FE analysis, the behavior of structure under construction was analyzed according to temperature changes. According to the results of analysis, as the temperature falls, shoring load drops and the temperature rises, shoring load rises. These variations of shoring load can affect the safety of construction. Moment of slab goes up by fall in temperature. This increase of moment can cause cracks on the slab. Therefore to assure the safety on construction and prevent cracks on slabs, temperature load has to be considered reasonably in construction sequential analysis.

• Journal of Cadastre & Land InformatiX
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• v.46 no.2
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• pp.107-122
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• 2016

This paper examines the problems of officetel management and tests three types of hy-pothesis; use of officetel, the numbers of officetel, and ownership period to derive the efficient management in officetel as typical profitable real estate using survey data of officetel management satisfaction in Teheranro, Seoul. The problems classifies institutional inertia and lacks of management mind. This paper approaches to the internal and external problem concerning management from the viewpoint of actual owners getting out of fragmental investment value and investigates management solutions in the cost as well as institution aspect.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.29 no.2D
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• pp.183-190
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• 2009

In order to improve continuous success and stabilization of high-speed rail in the future, Using Frequency of high-speed rail should be enhanced by improving satisfaction of high-speed rail passenger. High-speed rail is needed to hold the priority in competition means by comparing the traits of service of domestic air lines. This study utilizes structural equation modeling to develop model for estimating factors influencing to service through conducting survey questionnaire. It also uses reliability analysis, correlation analysis, factor analysis to examine the rationalization of items and to establish hypothesis of this research. The results show that KTX contains 'inner service' item that is considered to be ameliorated and that domestic airline present low performance of 'outer service' item. In other words, moving section which partly is under a limited condition is needed to be improved. In addition, access to airport and transfer to other transportations have to be improved as they show the lowest satisfaction.