• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.11a
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• pp.221-222
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• 2022

In this study, the work flow of the construction process was analyzed based on construction monitoring for a building of the middle size beam-column system Precast Concrete(PC) apartment building supplied by LH, and the Arrow Daigram Method(ADM) network diagram of its construction was written. The results of this study are judged to be able to improve productivity by using the PC structure apartment building construction plan to calculate a reasonable construction period and prepare a process management method for the PC structure frame construction.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.04a
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• pp.129-130
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• 2022

Apartments, which are typical residential spaces, are reconstructed or remodeled according to aging. However, reconstruction or remodeling of apartment complexes or an individual building requires following relevant laws and policies and requires a lot of time. Therefore, there are cases where apartment residents choose remodeling that improves the living environment by renovating only the interior of their household. In order to improve the interior space of an apartment, various materials such as windows, toilets, walls, and floors are replaced, and lots of matters must be considered in this process. Several problems arise in the process of selecting a remodeling company and carrying out construction, and the problem must be resolved through owner's decision-making. This study analyzes the problems through the case of apartment interior remodeling and suggests ways to improve them.

• KIEAE Journal
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• v.7 no.5
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• pp.127-133
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• 2007

Each year the amount of construction wastes increases at a rapid pace. Particularly, wastes from apartment housing projects that make up 89.14% of the total construction projects have increased about 48% as compared with those of the year 2000. Construction wastes are therefore rising as an issue related to environmental problems and disposal costs. And there are ongoing studies of the disposal, control and recycling of construction wastes. Mitigation measures for the wastes, however, have been a rare subject of research that focuses on waste-generating factors by activity during apartment housing projects. Given that, the purpose of this study was to categorize construction wastes by work type and to identify the factors causing wastes in order to reduce them. This study investigated the amount of the wastes from apartment housing constructions by activity as related to disposal costs, and examined causes in the ordering, transport, material management and construction stage, respectively. The analysis results will likely bring about expectation effects that help reduce the generation of the wastes by establishing action plans.

• Proceedings of the Korea Concrete Institute Conference
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• 2006.11a
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• pp.169-172
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• 2006

Wall construction apartment built before 1988 years need internal examination reinforcement according to existing laws ans regulations at remodeling because do not earthquake resistant design. Established newly wall to interest paid back at the same time a the principal direction for wall construction apartment internal examination reinforcement, and satisfied internal examination standard because uses width displacement between floor. This study analyzes displacement value such as latitude and presented position of efficient reinforcement wall and wall quantity at earthquake resistant design of wall construction apartment.

• Korean Journal of Construction Engineering and Management
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• v.22 no.6
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• pp.107-119
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• 2021

Recently, interest in remodeling apartment houses has been increasing due to problems such as a lack of parking spaces for old apartment houses. However, no method was suggested to predict the construction period of the apartment remodeling project. Unlike general apartment new construction, apartment remodeling construction involves demolition or reinforcement work, so a realistic remodeling construction period calculation plan differentiated from the existing construction period should be proposed. Therefore, this study intends to present a model for deriving the construction period of the underground parking lot of the apartment remodeling construction. Each construction period was calculated based on 19 activities of underground parking lot remodeling work through review of previous studies and expert advice. Activity's workload data and productivity data were derived to calculate the construction period, and the number of inputs and equipment inputs by Activity were determined to correct the productivity data. The construction period of Activity was calculated using the derived data, and the criteria for calculating the overlapping period for each Activity were presented to enable realistic construction period and scheduled schedule. As a result of predicting the accuracy of the construction period through the verification of the case complex, it is expected that it will be possible to predict the approximate construction period of the underground parking lot of the apartment remodeling construction in the future.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2010.05a
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• pp.9-12
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• 2010

Conventional apartment building projects have favored wall slab structure for the ease of construction and economic viability. However, wall slab structure, consisting of bearing walls, makes remodeling a difficult challenge. In addition, as the amendment to the Building Act in November, 2005 incentivized easy-to-remodel Rahmen structure design for apartment building in terms of floor area ratio and the number of stories, were are seeing more use of PC construct method in apartment building projects gradually. However, PC construction method requires complex connections between beams and columns, making it difficult to install and remove formwork. Furthermore, it is not possible to reuse forms after removal, generating lots of construction wastes, and it is necessary to install new forms again when the size of connection changes in line with modification of column cross-section. Researchers in Korea and elsewhere in the world have focused on structural performance of connection in PC construction method, with little attention to alternative approaches to improving connection forms for PC construction method. Accordingly, this research aims to study an approach to improving connection forms for PC construction method.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2023.05a
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• pp.359-360
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• 2023

As data management and analysis technology advances, there is active discussion on how to utilize data generated in construction projects. Among them, the materials produced during the supervision work are highly useful because their generation cycle and format are regulated according to relevant laws. In this study, we analyzed whether the data produced during the supervision work in the construction phase of apartment housing can be utilized for project performance management. First, this study identified key data necessary for performance management through FGI with experts in the field of apartment housing. Next, we collected supervisory data from the case project and identified whether the data was generated, its cycle, and storage format. As a result of the analysis, the supervisory data contained various information that could measure the performance of construction projects and had the advantage of standardized data. In the future, utilizing supervisory data is expected to enable effective performance management of apartment housing construction projects.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2011.11a
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• pp.63-64
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• 2011

Recently, due to global warming, CO₂ emissions is one of the global issues over all areas including construction industry. In Korea, apartment housing has large ratio of building construction and its CO₂ emissions during the operation and maintenance has the most large amount of tatal life cycle of apartment housing. However, there are rare research related to this subject. So, this study investigates the CO₂ emissions of domestic apartment housing during the operation and maintenance. In the future, the results of this study can be utilized in further study to decrease CO₂ emissions strategy.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2017.05a
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• pp.266-267
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• 2017

As apartment buildings defect lawsuits become socioeconomic problems, an objective basis system for the term of warranty liability of reinforced concrete constructions is urgent. This study was carried out as a basic study for developing a basis system for the term of warranty liability. To do this, defect data actual collected in apartment complexes were collected and analyzed. As the result of checking the cumulative rate of defect occurrence in reinforced concrete construction by year, the point of time of reaching the 90% level was the 5th years, which was similar with the provision of the Apartment Building Management Act. However, the current Supreme Court precedent has decided that the term of warranty liability for the main structural parts in reinforced concrete construction shall be 10 years and the dispute is expected to continue in the future in the defect lawsuit.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2017.05a
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• pp.191-192
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• 2017

After 1980's, as economy was rapidly grown and real estate market was active, greatly increased in population has been supplied to the city. Accordingly, national apartment house market is located in the form of Urban Housing Culture. However, as time goes by the apartment houses where the supply of mass became superannuated and residential environment became poor. So, the environment of old apartment houses has been changed to improve with reconstruction. It has been changed in response to the demands of the times. It is one of essential part in a remodeling field for the future although it has some problems in the way that uses existing buildings.