• 국제초고층학회논문집
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• 제9권3호
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• pp.283-300
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• 2020

The Lakhta Center is a Multifunction Complex Development (MFCD) consisting of 1) an 86 story office tower rising 462 m above the ground to provide high-end offices for Gazprom Neft and Gazprom Group affiliates 2) a Multi-Function Building (MFB) that includes, a scientific/educational center, a sport center, a children's technopark, a planetarium, a multi-transformable hall, an exhibition center, shops, restaurants, and other public facilities 3) a Stylobate 4) "The Arch, which forms the main entrance to the tower, restaurants, and cafes 5) underground parking and 6) a wide range of large public plazas. While each of the MFCD buildings is technically challenging in its own right, the focus of the paper is to present the development and integration of the structural and foundation systems of the bowed, tapered, and twisted shape of the tower into the fabric of the tallest Tower in Europe.

• 대한조선학회논문집
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• 제42권5호
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• pp.542-549
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• 2005

Naval ships are complex weapon systems which play the integrated performance by system integration of many kinds of weapon systems and their leading ships are usually not disposed after test and evaluation but militarised. Then, strict project management is required for naval ship building projects by identifying problems early and by taking prefer measures in time against unexpected situations encountered in the process of the projects. EVMS is a project management system which can manage the schedule and the budget of a project concurrently and estimate the project's time duration and the cost at project completion. In this paper, the applicability and usefulness of WMS is studied for a assumed navai ship building project, in the environment of monetary fluctuations such as price index, wage increase rate and exchange rate.

• Wind and Structures
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• 제13권6호
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• pp.557-580
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• 2010

A new inflow turbulence generation method and a combined dynamic SGS model recently developed by the authors were applied to evaluate the wind effects on 508 m high Taipei 101 Tower. Unlike the majority of the past studies on large eddy simulation (LES) of wind effects on tall buildings, the present numerical simulations were conducted for the full-scale tall building with Reynolds number greater than $10^8$. The inflow turbulent flow field was generated based on the new method called discretizing and synthesizing of random flow generation technique (DSRFG) with a prominent feature that the generated wind velocity fluctuations satisfy any target spectrum and target profiles of turbulence intensity and turbulence integral length scale. The new dynamic SGS model takes both advantages of one-equation SGS model and a dynamic production term without test-filtering operation, which is particular suitable to relative coarse grid situations and high Reynolds number flows. The results of comparative investigations with and without generation of inflow turbulence show that: (1) proper simulation of an inflow turbulent field is essential in accurate evaluation of dynamic wind loads on a tall building and the prescribed inflow turbulence characteristics can be adequately imposed on the inflow boundary by the DSRFG method; (2) the DSRFG can generate a large number of random vortex-like patterns in oncoming flow, leading to good agreements of both mean and dynamic forces with wind tunnel test results; (3) The dynamic mechanism of the adopted SGS model behaves adequately in the present LES and its integration with the DSRFG technique can provide satisfactory predictions of the wind effects on the super-tall building.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.353-360
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• 2022

Due to the dense and complicated working environment, the construction industry is susceptible to many accidents. Worker's fall is a severe problem at the construction site, including falling into holes or openings because of the inadequate coverings as per the safety rules. During the construction or demolition of a building, openings and holes are formed in the floors and roofs. Many workers neglect to cover openings for ease of work while being aware of the risks of holes, openings, and gaps at heights. However, there are safety rules for worker safety; the holes and openings must be covered to prevent falls. The safety inspector typically examines it by visiting the construction site, which is time-consuming and requires safety manager efforts. Therefore, this study presented a worker-driven approach (the worker is involved in the reporting process) to facilitate safety managers by developing integrated computer vision and inertia sensors-based mobile applications to identify openings. The TensorFlow framework is used to design Convolutional Neural Network (CNN); the designed CNN is trained on a custom dataset for binary class openings and covered and deployed on an android smartphone. When an application captures an image, the device also extracts the accelerometer values to determine the inclination in parallel with the classification task of the device to predict the final output as floor (openings/ covered), wall (openings/covered), and roof (openings / covered). The proposed worker-driven approach will be extended with other case scenarios at the construction site.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.992-1000
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• 2022

Heritage buildings (HBs) as structures with historical and architectural relevance that form an integral part of contemporary society. HBs deserve to be protected for as long as possible to retain their significance. Therefore, prioritizing HB maintenance management (HBMM) is pertinent. However, the decision-making process of HBMM can be relatively daunting. The decision-making challenge may be attributed to the multiple 'stakeholders' expectation and requirement which needs to be met. To this end, professionals in the built environment have identified the need to apply the strategic concept of facilities management (FM) in decision making. However, studies exploring the application of FM in decision-making seem lacking. To bridge this gap, this study focuses on developing a framework for strategic decision-making HBMM, which helps achieve HBMM sustainability. At the study's inception, relevant works of literature in the domains of HBMM and FM were conducted. This review helped identify contemporary maintenance practices and their applicability to HBMM. Afterward, a conceptual framework to aid decision-making in HBMM was developed. This framework integrated the concept of FM scope (people, place, process, and technology) while ensuring that decisions and plans were made at strategic, tactical, and operational levels. The conceptual framework presents a holistic guide for professionals in HBMM to ensure that decision processes and outcomes are practical and efficient. It also contributes to the existing body of knowledge on the integration of FM in HBMM. Furthermore, it will help achieve HB sustainability through an effective decision-making process.

• KIEAE Journal
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• 제11권5호
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• pp.69-77
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• 2011

In order to solve social exclusion and segregation phenomenon and to realize social integration, the necessity of social combination and consensus has been presented and existing conception about the public lease apartment confronts a turning point due to the diversification of apartment supply system. With this social background, Eunpyeong New Town Project implemented by Seoul Metropolitan Government is the first example that supplied diverse apartments for social integration. Survey was made upon the residents aged 20 and over and living in combination apartments, lease apartments and common apartments for private ownership in the Enpyeong New Town Apartment Complex in section 1 area, and the survey sheets filled up by the respondents were collected by personal visits or by using specified gathering spots. Summary of study results is as follows: Firstly, regarding the combination method, respondents preferred the irregular combination of lease apartment units and common apartment units in the same apartment building at the top, analyzing by survey groups marked that residents of common apartment with initial ownership responded not to choose combination apartment complex or combination apartment in future. Secondly, the living consciousness with neighbors revealed that respondents were generally satisfied without difference between the residents of lease apartment and common apartment. As the demand and policies for diverse lease apartments are increasing recently, Eunpyeong New Town Project aimed for positive social integration and consensus will be evaluated as model case for social combination apartment in future. And it is necessary to introduce the policies that consider the differences in consciousness and interest of the residents among the lease apartments and common apartments.

• Spatial Information Research
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• 제18권1호
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• pp.49-56
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• 2010

시가지 범람 문제를 고려할 경우 침수심의 정량적인 수치계산에 의한 재해 위험을 평가하는 것이 중요하다. 본 연구에서는 2002년 막대한 시가지 침수 피해를 경험한 바 있는 삼척시를 대상으로 범람 모의 계산에 의한 시가지 침수피해 평가를 수행하였다, 입력자료의 변환과정에서 생길 수 있는 에러를 줄이기 위해 시가지 조도계수, 표고, 건물의 점유율 등은 ArcGIS에서 바로 전산화하여 시가지 범람모형을 구축하였으며 계산된 침수심을 토대로 격자별로 피해액을 산정하였다 본 연구를 통하여 강우유출, 침수심 모의 계산, 피해액의 정량적 산정이라는 일연의 과정이 통합적으로 수행되어 향후 시가지 배수계획에 기여할 것으로 기대된다.

• 한국측량학회지
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• 제23권2호
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• pp.109-116
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• 2005

3차원 공간 모형, 즉 3차원 CG 도시 모델은 건물이나 도로, 강 등의 사회 환경을 가상공간으로 표현하고 GIS(지리 정보 시스템)등의 정보 시스템에서 데이터를 축적${\cdot}$관리하여 광범위한 분야에서 다양한 활용이 기대되는 중요한 정보기반이다. 현재는 이러한 3차원 CG 도시 모델 구축을 위한 데이터 취득이나 모델 작성에는 많은 수작업이 필요하고 막대한 시간과 노력이 걸린다. 본 논문에서는 $\lceil$3차원 공간 데이터 기반$\rfloor$을 GIS와 CG로 통합화하고 자동 생성한 정보 시스템에 관하여 소개한다. 이 시스템에서는 GIS가 관리${\cdot}$축적한 수치지도상의 건물 경계선 다각형에 대하여 필터링, 다각형분할, 윤곽선의 생성 등의 처리를 하고 CG 시스템이 이것의 데이터를 받아서 지형의 도형 정보와 속성 정보를 설계하여 건물이나 도로 등의 3차원 CG 모델을 자동 생성한다.

• 한국조사연구학회지:조사연구
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• 제10권2호
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• pp.45-69
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• 2009

본 연구는 다원화된 한국사회의 사회통합 및 갈등해소를 위한 방안을 사회적 자본에서 찾고자 하였다. 이를 위해 사회적 자본을 (1) 일반적 타자에 대한 신뢰, (2) 국가 공공영역에 대한 신임, (3) 연줄망과 연결망을 포괄하는 네트워크, (4) 공동체 의식으로 구분하였고, 사회적 자본이 잠재된 갈등의식을 나타내는 갈등잠재지수에 어떤 영향을 미치고 있는지를 실증적으로 분석하여 다음과 같은 사실을 발견하였다. 첫째, 일반적 타자에 대해 신뢰가 높은 사람은 사회통합 지향적 경향을 보여 주었다. 둘째, 국가 공공영역의 절차적 공정성 및 민주적 운영을 신뢰하고 있는 사람들 역시 사회통합 지향적 경향을 보여 주었다. 하지만 특정 정권에 대해 신뢰가 높은 사람은 오히려 갈등 지항적 경향을 보여주었다. 셋째, 폐쇄적 연줄망을 활용하는 사람들은 갈등지향적인 반면, 개방적 연결망을 활용하는 사람들은 사회통합 지향적이었다. 넷째, 공동체규범의 내면화 정도는 사람들의 사회 통합적 지향성과 아무런 관련이 없었다. 이러한 결과들이 갖는 함의는 다음과 같다. 다원화된 한국사회의 실질적 사회통합을 위한 사회적 자본은 학연, 혈연 지연과 같은 전통적인 폐쇄적 연결망에 기반한 것이 아니라, 익명의 일반적 타자들에 대한 신뢰와 느슨하게 연결된 개방적 연결망에 기반해야 한다. 또한 실질적 사회통합은 공정한 국정운영 시스템에 대한 신임에 기초해야 하는 것이지, 특정 기관 혹은 정파에 대한 맹목적 신뢰에 기초해서는 안 된다.

• 한국실내디자인학회논문집
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• 제22권5호
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• pp.225-232
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• 2013

The spatial separation of male's and female's area due to the law of 'Naeoei' is one of the trademark features of residence by the building principle of 'Confucianism' in the upper class house in the late of the Chosun Dynasty. Thanks to modernized agriculture and commerce, the residence of 'Sinheung-Yangban' developed. And they were influenced by the economic and living characteristics than traditional custom. So the residence of 'Sinheung-Yangban' is very important in terms of the course of modernizing of the korean traditional residence. Researcher figures out the influences of the law of 'Naeoei' in residence and the characteristics of male's and female's field in terms of daily life with investigating the residence of 'Sinheung-Yangban' as the upper class house in the late of the Chosun Dynasty. Through this, the goal of this study is to find the properties of male's and female's field of upper class houses in the late of the Chosun Dynasty. With this study, the followings are the characteristics of male's and female's spatial composition of upper class houses in Gyong-gi Province in the late of the Chosun Dynasty. First, the traditional law of 'Naeoei' plays a primary role as the principle of building of upper class houses in Gyong-gi Province in the late of the Chosun Dynasty. With a natural result, there is a clear spatial separation as the male's and female's social role. Second, 'An-Chae' and 'Sarang-Chae' as male's and female's living space are separated physically, but real living life tends to be syntagmatically made with 'An-Madang' as the center. Third, spatial integration of 'An-Madang' as the center results in the development of architectural connection factors of 'An-Chae' and 'BaKat-Chae' adjoining 'An-Madang', facing 'Toei-Gan', 'Maru', and 'door'. Forth, the boundary of male's and female's areas is relatively clear between dwellers and visitors, but on the other hand, the separation of male's and female's spaces between family members has little significance.