• Smart Structures and Systems
• /
• 제13권3호
• /
• pp.407-418
• /
• 2014

The purpose of this paper is to present an Integrated Life Cycle Bridge Information Modeling that can be used throughout different phases of the bridge life cycle including: design, construction, and operation and maintenance phases. Bridge Information Modeling (BrIM) has become an effective tool in bridge engineering and construction. It has been used in obtaining accurate shop drawings, cost estimation, and visualization. In this paper, BrIM is used as an integrated tool for bridges life cycle information modeling. In the design phase, BrIM model can be used in obtaining optimum construction methods and performing structural advanced analysis. During construction phase, the model selects the appropriate locations for mobile cranes, monitors the status of precast components, and controls documents. Whereas, it acts as a tool for bridge management system in operation and maintenance phase. The paper provides a detailed description for each use of BrIM model in design, construction, and operation and maintenance phases of bridges. It is proven that BrIM is an effective tool for bridge management systems throughout their life phases.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2014년도 춘계 학술논문 발표대회
• /
• pp.198-199
• /
• 2014

In construction management the estimation procedure of construction expanses follows a series of submission phases: production of drawings, the assessment report, and the expanse report. In South Korea, it is a widely known issue that the expanse report only includes the net expanses at each construction phase and part, which makes it difficult to trace detailed basis from the records. This issue with inefficient record management should pose a number of problems, which result from discontinuation of construction record, unproductiveness for reproduction of records at each construction and submission phases for construction management, and failure to perform fair management among the contracting parties. Thus, the amendment in which the assessment report and the quantity estimation report reflect common codes to share throughout types of construction, space, and parts should be applied into practices so as to model production of acceptable reports and record.

• 한국BIM학회 논문집
• /
• 제7권2호
• /
• pp.16-24
• /
• 2017

It is very important to estimate accurate construction total cost needed early in the project. In the initial phase of the design, the project cost estimates are determined by total quantity from design documents and the variables that affect the calculation of the total cost of the project. In order to determine accurate total construction cost, the contractor has to produce detailed quantity information based on the drawings and specifications. The process of preparing quantification and cost estimation documents is still being worked out manually, and a lot of errors have been occurred in many cases. Recent advances in information technology have led to the BIM based quantity takeoff and cost estimation. However, there are some limits to the extent to which the current specifications for BoQ documents are computed from BIM model. This research analyze the current BoQ cases and analyze how to make quantity takeoff possible through BIM. The study defined five levels of quantity category that could be produced by BIM. Only about 40% or indirectly usable items can be used when information is extracted to BIM modelling. This is very insufficient to fill out the BoQ. The BoQ document structure quantity takeoff specifications should be simplified in order to BIM based cost estimation more efficiently.

• 교육시설 논문지
• /
• 제23권1호
• /
• pp.13-22
• /
• 2016

Recently, Korea has been established and operated International Schools manifesting to improve the nation's capacity of the foreign languages skill and to cultivate internationally trained professional manpower. In order to achieve the vision of a world-class educational organization, it has to be designed for the facility standards to meet the international accreditation standards. Therefore, the main purpose of this study is to research about basic resources through comparison of facility conditions between public schools in Korea and international accredited schools. By comparing those two different plan drawings are found the following things. First, Schools which established with International Accreditation Standard are prepared detailed criteria for the facility, Furthermore information about the furnishings included, in addition to specific equipments for classes are stated to be prepared. Secondly, it is more effective when special classrooms such as music and science are equipped with various spatial elements, enough educational equipment storage, teacher's study rooms, practical training rooms and student's activity rooms to support various teaching programs and learning efficiently. Lastly, there was a clear tendency that not only hardware but also software standards for the audiovisual room and library have been more enhanced to enable multidisciplinary educational approaches with the recent education training trend.

• Smart Structures and Systems
• /
• 제4권2호
• /
• pp.183-194
• /
• 2008

An important historical monument of Cyprus is an aqueduct that was built in 1747 to provide water to the city of Larnaca and to its port. Because of its importance to the cultural heritage of Cyprus, the aqueduct has been selected as one of the case-study monuments in the project Wide-Range Non-Intrusive devices toward Conservation of Historical Monuments in the Mediterranean Area (WIND-CHIME). Detailed drawings of the aqueduct obtained from the Department of Antiquities of Cyprus have been used for the development of a computational model. The model was fine-tuned through the measurement of the dynamic characteristics of the aqueduct using forced and ambient vibrations. It should be noted that measurement of the dynamic characteristics of the structure were performed twice in a period of three years (June of 2004 and May of 2007). Significant differences were noted and they are attributed to soil structure interaction effects due to seasonal variations of the water-level in a nearby salt-lake. The system identification results for both cases are presented here. This monument was used to test the effectiveness of shape memory alloy (SMA) pre-stressed devices, which were developed during the course of the project, in protecting it without spoiling its monumental value.

• Multiscale and Multiphysics Mechanics
• /
• 제1권2호
• /
• pp.143-156
• /
• 2016

Reinforced concrete (RC) structures require advanced analysis techniques for better estimation of their seismic responses, especially in the case of exhibiting complex three-dimensional coupling of torsional and flexural behaviors. This study focuses on validating a numerical approach for evaluating the seismic response of a three-dimensional unsymmetrical RC structure through the participation in the SMART 2013 international benchmark program. The benchmark program provides material properties, detailed drawings of the RC structure, and input ground motions for the seismic response evaluation. In this study, nonlinear constitutive models of concrete and rebar were formed and local tests were conducted to verify the constitutive models in finite element analysis. Elastic calibration of the finite element model of the SMART 2013 RC structure was performed by comparing numerical and experimental results in modal and linear time history analyses. Using the calibrated model, nonlinear earthquake analysis and seismic fragility analysis were performed to estimate the behavior and vulnerability of the RC structure with various ground motions.

• KIEAE Journal
• /
• 제2권3호
• /
• pp.3-10
• /
• 2002

The objectives of this research are to find the problems in the courtyards of the elementary schools and to provide the new design guidelines on the environmental design applicable to the court yard of the elementary schools. To analyze the current usage condition of the court yards of the elementary schools, sixty-three elementary schools in Seoul were investigated through the architectural drawings, and then nineteen of them were selected for the detailed investigations. The survey findings testified that the orientation of the courtyard's open direction and D/H ratio would be critically important for the architectural design of the courtyard in elementary schools. From these analyses, the following guidelines would be proposed on the courtyards for the improved elementary school design. Firstly, to increase the environmental condition of the courtyard, the orientation of the courtyard's open side would not be north. Secondly, to make the environmentally friendly courtyard, it is necessary to increase the D/H ratio. Sooner or later, the courtyard of the elementary schools would be introduced very largely. Thus, it is important to figure out the elements of the environmental design of the courtyard in elementary schools. The continuous research on the elements of the environmentally friendly design of the courtyard will provide the proper direction for the better design of the elementary schools.

• 한국항해항만학회:학술대회논문집
• /
• 한국항해항만학회 2006년도 추계학술대회 논문집(제1권)
• /
• pp.317-323
• /
• 2006

본 시험의 목적은 컨테이너터미널의 생산성을 향상시키기 위해서 기술개발 추진 중인 컨테이너 자기하역차량(ALV:Automated Lifting Vehicle)의 핵심 기술개발 요소 중 하나인 주행구동장치 (Gantry Travel Mechanism) 시제품을 제작하여, 무부하 및 부하 조건에서 각종 Test와 한계하중 실험 과정을 통하여 설게 Data의 확인과 상세 제작도면의 오류를 사전에 발견하여 최종 제작도면에 수정 반영함으로써 보다 완벽한 장비를 개발하는 것을 목적으로 한다.

• 정보관리연구
• /
• 제30권3호
• /
• pp.44-54
• /
• 1999

SGML(Standard Generalized Markup Language)의 디스크립션은 WIPO(World Intellectual Property Organization) Standard ST.32의 디스크립션과 더불어 자세히 기술되고있다. SGML의 이용에 대한 이점이 강조되고 있으며, 그것은 시스템 독립적이며 특허출판 및 전문 데이터베이스구축에 타당성이 있다는 것이다. WIPO Standard ST.32를 적용한 특허문헌의 내용구조는 ST.32에 따라 작성한 DTD로 표현하고 텍스트 자체는 DTD에 따른 범용 마크업을 사용하여 기술한다. 본고에서는 전체문헌, 특정 서브문서, 문단 등의 계층구조와 표, 도면, 화학구조식 등의 비계층구조로 되어 있는 문서구조를 어떻게 표현하는가에 대하여 예를들어 설명하였다. 그리고 특허 문헌처리에서 SGML의 효과에 대하여 논의하였다.

• Journal of Construction Engineering and Project Management
• /
• 제6권4호
• /
• pp.7-14
• /
• 2016

While the idea of the existence of a set of key factors for success in planning, designing and construction of projects is not new, it remains one of the most important issues in the field of construction management. This is due to project success factors are inputs to project management practice which can lead directly or indirectly to project success. This study identifies the success factors which can be used for improving the highway projects performance in Egypt during the project pre-construction and construction phases. Through a detailed literature review 35 success factors are identified. Furthermore, the AHP is adopted to prioritize the studied factors through the application of questionnaire survey. The study establishes that implementing an effective quality control and assurance systems, allow sufficient time for feasibility studies, design, drawing and tender preparation, effective cost control system and frequency of project budget updates, preparing adequate designs and drawings and determining sufficient time to implement the desired scope of work are the most important success factors for enhancing the highway projects performance in Egypt.