• 한국지진공학회논문집
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• 제21권2호
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• pp.105-114
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• 2017

Nonlinear analysis for seismic performance evaluation of existing building usually takes 4~5 times more than linear analysis based on KBC code. To obtain accurate results from the nonlinear analysis, there are a lot of things to be considered for nonlinear analysis modeling. For example, reinforcing layout, applied load and seismic details affect behavior of structural members for the existing building. Engineer-oriented computerized system was developed for engineers to evaluate effective seismic performance of existing buildings with abiding by seismic design principles. Using the engineer-oriented program, seismic performance evaluation of reinforced concrete building was performed. Nonlinear hinge properties were applied with real time multiple consideration such as section layout, section analysis result, applied load and performance levels. As a result, the building was evaluated to satisfy LS(Life Safety) performance level. A comparison between engineer-oriented and program-oriented results is presented to show how important the role of structural engineer is for seismic performance evaluation of existing buildings.

• 한국공간구조학회논문집
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• 제9권1호
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• pp.53-60
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• 2009

본 연구의 목적은 건축가와 구조엔지니어가 어떻게 밀접한 관계를 유지하면서 구조계획과 구조디테일을 발전시킬 수 있는 방법론에 대하여 논하고자 한다. 실제로 일반적인 건축물이 아닌 특수 건축물에서 구조적인 거동에 관한 조사 없이 디테일 해결이란 상당히 어렵다. 그러한 조사 없이 해결된 디테일은 힘의 흐름을 정확히 예측할 수 없고 단지 조형적인 이미지만 표현될 뿐이다. 건축가와 협력관계에서 디테일 해결하는 과정을 구조 엔지니어 입장에서 제시하고자 한다.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 1994년도 가을 학술발표회 논문집
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• pp.137-144
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• 1994

This study describes an application of a knowledge-based system for a part of the development of an integrated structural design system. In preliminary structural design procedure, most structural design operation are performed by structural engineer's manual method. These lack of systematic operation hampers the effective system integration. By introducing expert system to the structural planning stage, structural engineer can automate structural Planning process of an integrated structural design system for complex design. Engineering data management is receiving increasing attention due to complexity of information necessary for performing structural engineering operations. So, in this paper, we describe a methodology for automating conceptual structural design and developing a knowledge-based system integrated with database. At the end, we use an implemented example to support our methodology.

• 건축구조
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• 제13권3호
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• pp.10-12
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• 2006

• 건축구조
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• 제8권4호
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• pp.49-49
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• 2001

• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 춘계학술대회논문집C
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• pp.219-223
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• 2001

This paper introduces DS/Block-Structure - a structural analysis module of DS/Block, which is a Design System to simulate the behavior of a ship block in various crane operations and to evaluate its structural deformation using the finite element method. It runs based on a CAD program, Pro/ENGINEER, and structural analyses are performed by a developed FE code. Boundary conditions for the FE analysis of a ship block under lifting and turnover operation are also considered.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.188-195
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• 2022

Although issuing change orders is a common practice in the construction phase of any project, non-structural utility subcontractors are struggling and seek to find a way to reduce change orders. Therefore, this paper presents the analysis results on change orders to cultivate possible suggestions and solutions on how to reduce or minimize change orders in mechanical, electrical, and plumbing (MEP) works. Change orders in non-structural utility works are analyzed based on six categories such as rerouting and change of location, changes in weight, rejected design by Office of Statewide Health Planning and Development, District Structural Engineer, or the Structural Engineer of Record, unforeseen conditions, changed equipment, and owner-initiated change. The analysis findings showed that rerouting and changing location is the most significant cause, followed by unforeseen conditions. The results not only contribute to the existing body of knowledge on change order research area, but also help MEP contractors reduce the time and cost of change orders.

• 전산구조공학
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• 제5권1호
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• pp.15-22
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• 1992

이 글에서는 한정된 지면에서 P.C박스거더 교량의 설계 및 해석에 관하여 간략히 소개하였다. 구조해석 및 설계 등이 어떤 일정한 틀이 있어 모든 구조 Engineer들이 반드시 따라야 할 정형화된 절차가 있는 것이 아니라 최소한의 규정을 갖는 설계 및 시방규준들을 근간으로 구조 Engineer들 각자의 창의력과 공학적 판단 및 근거제시를 통해 수행됨에 비추어 볼 때 본 고의 내용은 하나의 예일 뿐이다. 본 지면을 빌어 강조하고 싶은 것은 최근의 교량이 장대화되고 다양한 시공법에 의한 시공절차로 건설됨으로 인해 완성구조계가 같은 교량일지라도 완성구조계에 도달하기까지의 구조계 및 하중/응력 상태가 다양하게 변화됨에 따라 구조 Engineer는 설계시에 반드시 시공과정을 철저히 모사(simulation)하고 시공중에서도 계속해서 현장의 변화되는 사항을 Feed-Back시키므로써 최근 시공중에 자주 발생되는 장대교량의 구조적인 문제점들을 미연에 방지하는 노력을 기울여야겠다.

• 국제초고층학회논문집
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• 제6권1호
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• pp.73-82
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• 2017

Vertical shortening in tall buildings would be of little concern if all vertical elements shortened evenly. However, vertical elements such as walls and columns may shorten different amounts due to different service axial stress levels. With height, the differential shortening may become significant and impact the strength design and serviceability of the building. Sometimes column transfers or other vertical structural irregularities may cause differential shortening. If differential shortening is not addressed properly, it can impact the serviceability of the building. This paper takes the perspective of a structural engineer in planning the design, predicting the shortening and its effects, and communicating the information to the contractor.

• 기술사
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• 제32권3호
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• pp.21-25
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• 1999