• 한국산학기술학회논문지
• /
• 제19권10호
• /
• pp.578-589
• /
• 2018

건물일체형 태양광 발전(BIPV) 시스템은 건축물에 태양광 발전시스템이 통합되어 건축물 기능과 태양광 발전 기능을 동시에 수행하는 대표적인 통합시스템이다. BIPV 시스템은 건축물 외피의 기능을 수행하면서 동시에 태양광 발전기능을 수행할 수 있다는 장점이 있지만, 건축물 설계 프로세스의 개념설계 단계에서부터 태양광 발전기능이 통합되어야 하고, 동시에 전력발전을 극대화할 수 있는 태양광 발전시스템의 설계가 필요하다. 이러한 요구사항에 대한 선행연구로서, 건축설계모델기반 BIPV 설계 프로세스에 관한 연구와 태양광 전력발전 성능 향상을 위한 모델기반 컴퓨터 시뮬레이션 결과들이 발표되었다. 그러나, BIPV 시스템의 요구사항이 명확하게 식별되어 체계적으로 반영되지 못하였고, 또한 시스템의 전력발전설계가 개념설계 단계에서부터 반영될 수 있도록 요구사항에 대한 시스템 아키텍쳐, 구조 및 거동이 정의되지 못하였으며, 그리고 BIPV 시스템의 전력발전 설계를 검증할 수 있는 모델이 제시되지 못하였다. 이러한 문제 들을 해결하기 위하여 본 연구에서는 BIPV 시스템의 요구사항을 체계적으로 모델링 하고 이를 기반으로 체계적인 전력발전 설계 방법을 연구하기 위하여 시스템 모델링 표준 언어인 SysML을 사용하여 전체시스템 관점에서 통합적이고 일관적인 설계 방법을 제시하였다. 구체적으로, 먼저 대상시스템(BIPV)에 대한 관련 표준, 사용자 및 설계자 등을 포함하는 이해당사자 들로부터의 요구사항을 식별하였다. 그리고 나서 domain model을 기반으로 BIPV 시스템 수준의 설계요구사항을 도출하였으며, 시스템 요구사항을 바탕으로 대상시스템의 SysML기반 기능 및 물리 아키텍쳐를 생성하였다. 또한 SysML 구조 모델과 거동 모델에 대한 설계를 구체화 하여 시스템의 구성 요소들 사이의 역할과 관계를 정의하였다. 마지막으로, 시뮬레이션이 가능한 SysML 모델(Parametric diagram)을 통하여 BIPV 시스템의 전력발전 성능을 평가하였다. 본 연구에서의 SysML 시스템 모델에 향후 건축물에 적용해야 하는 조건들을 반영하여 시스템 모델을 보강한다면 BIPV 시스템에서 전력발전을 통합적으로 연구할 수 있는 기회가 될 것이다.

• Architectural research
• /
• 제18권4호
• /
• pp.151-155
• /
• 2016

It is necessary to improve the performance of buildings with respect to the energy efficiency while improving the quality of occupants' lives through a sustainable built environment. During the design and development process, building projects must have a comprehensive, integrated perspective that seeks to reduce heating, cooling and lighting loads through climate-responsive designs. The aim of this study is to find an optimal thermal transmittance (U-values) for building envelope elements for low energy multi-rise residential buildings in the early design phase in Korea. The study found that using small U-values of $0.15w/m^2K$ for exterior walls, ceilings and floors and $1.0w/m^2K$ for south and north facing windows has resulted in energy reduction of 22.1%-59.4% in the south facing rooms and 43%-77.6% of the north facing rooms. It has also found the energy load reduction potential of using small U-values are higher on the north facing rooms. The findings of this study can be suggested to be used as a baseline case for low energy consumption studies. It can also be used to determine appropriate envelope materials and insulation values.

• 한국태양에너지학회 논문집
• /
• 제33권1호
• /
• pp.96-105
• /
• 2013

This study aims to investigate the energy performance of apartment in respect of complex design, building type and generation house layout and finally to produce the guide line for energy saving design. To grasp the present condition and problem about this subject, apartment building types were examined and representative types were extracted. Considering azimuth angle, private area, and generation number, building type of the subject apartment was classified in detail, energy simulation was conducted, and the effect to energy cost was compared. In the research, using VE energy simulation program, the heating and cooling load were calculated and converted to energy cost. It is expected that this analysed results will be basic data for the more integrated study. Research consequence can be summarized as follow: 1) Energy cost is compared according to several azimuth in plank '一' type apartment. As the results, calculated gas cost is the best in $49^{\circ}$, but total cost is in $-31^{\circ}$. 2) Apartment buildings of tower types are compared, it is resulted that 'Y' type (azimuth $-7^{\circ}$, $-20^{\circ}$) is the best in gas cost, but the total cost is worst because of high cooling load.

• Wind and Structures
• /
• 제18권4호
• /
• pp.391-422
• /
• 2014

The high frequency force balance (HFFB) technique provides convenient measurements of integrated forces on rigid building models in terms of base bending moments and torque and/or base shear forces. These base moments or forces are then used to approximately estimate the generalized forces of building fundamental modes with mode shape corrections. This paper presents an analysis framework for coupled dynamic response of tall buildings with HFFB technique. The empirical mode shape corrections for generalized forces with coupled mode shapes are validated using measurements of synchronous pressures on a square building surface from a wind tunnel. An alternative approach for estimating the mean and background response components directly using HFFB measurements without mode shape corrections is introduced with a discussion on higher mode contributions. The uncertainty in the mode shape corrections and its influence on predicted responses of buildings with both uncoupled and coupled modal shapes are examined. Furthermore, this paper presents a comparison of aerodynamic base moment spectra with available data sets for various tall building configurations. Finally, e-technology aspects in conjunction with HFFB technique such as web-based on-line analysis framework for buildings with uncoupled mode shapes used in NALD (NatHaz Aerodynamic Loads Database) is discussed, which facilitates the use of HFFB data for preliminary design stages of tall buildings subject to wind loads.

• 국제학술발표논문집
• /
• The 8th International Conference on Construction Engineering and Project Management
• /
• pp.343-352
• /
• 2020

Modular integrated construction (MiC) is an innovative construction method where components of a building are manufactured in an offsite factory, trucked to the job site in sections, set in place with cranes, and assembled together to form a whole building. Where circumstances merit, favorable conditions exist and implemented effectively; MiC improves project performance. However, several key factors need to converge during implementation to realize the full benefits of MiC. Thus, a thorough understanding of the factors which are critical to the success of MiC projects is imperative. Drawing on a systematic review of 47 empirical studies, this research identified 25 key success factors (KSFs) for MiC projects. Of these, the five topmost cited KSFs for MiC projects include effective working collaboration and communication among project participants; standardization, optimization, automation and benchmarking of best practices; effective supply chain management; early design freeze and completion; and efficient procurement method and contracting. The study further proposed a conceptual model of the KSFs, highlighting the interdependences of people, processes, and technology-related KSFs for the effective accomplishment of MiC projects. The set of KSFs is practically relevant as they constitute a checklist of items for management to address and deal with during the planning and execution of MiC projects. They also provide a useful basis for future empirical studies tailored towards measuring the performance and success of MiC projects. MiC project participants and stakeholders will find this research useful in reducing failure risks and achieving more desired performance outcomes. One potential impact of the study is that it may inform, guide, and improve the successful implementation of MiC projects in the construction industry. However, the rigor of the analysis and relative importance ranking of the KSFs were limited due to the absence of data.

• 한국태양에너지학회 논문집
• /
• 제28권3호
• /
• pp.15-20
• /
• 2008

Building-integrated photovoltaics(BIPV) are increasingly incorporated into new domestic and industrial buildings as a principal or ancillary source of electrical power, and are one of the fastest growing segments of the photovoltaic industry. This paper presents design, operational features analysis, and PCS(Power Conditioning System) of grid-connected 30kW BIPV set up on the library of Dongshin University. For a sustainable photovoltaics system in this area, the data of the BIPV system are collected and analyzed by monitoring system using LabView. PCS of the grid-connected BIPV system, also, is designed for optimal operation with characteristics suggested in this paper.

• 전산구조공학
• /
• 제9권1호
• /
• pp.23-32
• /
• 1996

본 논문에서는 건물 기초 설계의 자동화를 위한 규칙 기반 시스템을 개발하였다. 상부구조의 설계 결과와 지반 조사 보고서로부터의 지반에 관한 자료를 읽어 들여 허용지내력을 추정하고 주어진 상황에 적절한 기초형식을 추론하는 방법을 제안하였다. 허용지내력은 표준관입시험치로부터 추정하였고, 이를 바탕으로 각 기중과 벽체의 기초형식은 우선 독립기초와 벽체기초라고 가정하여 그 크기를 계산하고 각 기초의 중첩여부를 조사하여 중첩되는 기초들은 본 논문에서 개발한 기초 합병의 방법을 이용하여 새로운 기초형식으로 변경되도록 하였다. 개발된 시스템은 주어진 상부구조 설계결과와 지반조건에 대하여 적절한 기초형식을 선정하여 그에 따른 배근 설계를 쉽게 할 수 있도록 해준다.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2015년도 춘계 학술논문 발표대회
• /
• pp.109-110
• /
• 2015

Estimation of rebar quantity may be used as an index to evaluate the economic feasibility of structural designs. However, when using the software to estimate the rebar quantity, there may be some limitations such as data loss caused by human errors and estimation delays caused by increased input time, since the information on arrangement of rebar is inserted manually. To solve the problems of such quantity estimation software, it is necessary to develop a method on automatic input/output of structural design information for quantity estimation and an algorithm for accurate estimation of rebar quantity. The purpose of this study is to improve the existing rebar quantity estimation by connecting with the database on information related to rebar estimation and the algorithm for rebar estimation, in order to develop an algorithm to estimate an accurate, net rebar quantity. The study result can be used as basic data for development of software for efficient structural designs and automatic framework estimation of buildings.

• 한국BIM학회 논문집
• /
• 제13권4호
• /
• pp.36-44
• /
• 2023

Recently in Korea, efforts are underway to enhance smart construction by implementing Building Information Modeling (BIM) comprehensively across all sectors of the construction industry. This study focused on the adoption of BIM for prefab bridges currently executed in the industry and It examined the process of creating a BIM-based prefab bridge model that can support production. Additionally, it explored how prefab products made by manufacturers can be integrated with road alignments using BIM technology and how the DfMA (Design for Manufacturing and Assembly) approach, which supports production based on designed information, can be adopted. The process of creating the prefab bridge model aims to shorten production time, reduce costs, and enhance quality by leveraging digital information related to design and manufacturing within the BIM framework

• 한국조경학회지
• /
• 제35권1호
• /
• pp.9-19
• /
• 2007

This plan was submitted as part of an invited competition for the provincial park planning of Yeonin Mountain, which was held by the Gyeonggi Innovation Corporation in November, 2006. The proposed site is located at Seungan-ri, Gapyung-eup, Gapyung-gun, Gyunggi-do and covers about $150,010m^2$. The main goal of this project is to "Suggest a New Park Paradigm" by shedding old ways of thinking about parks through an integrated development concept. Planning was approached as follows: First, providing an unique theme to the support facilities area of Yeonin Mountain Piovincial Park. To achieve this theme, the Seungan support facilities area was designated to be home to a Seven Colored Theme Garden, currently named the Native Wild-flower Garden, while the Baekdun facilities area is to be centered on a Self-loaming Forest Camp, which will give the chance of a hands-on wildlife experience. With these themes, which create recreational goals that will encourage not only tourism but education as well, the foundation was laid for a multi-purpose park paradigm. Second, Developing a Core Facility Zone. To accomplish the development of a core facility zone, park buildings will be arranged in accordance with an integrated building lay-out for easy access and use, and the facilities specified by design for the Seven Colored Theme Garden are provided for the newly prepared site. This will allow focus on the user's viewpoint instead of the view of the planner or of ease of maintenance.