• Title, Summary, Keyword: Architectural Structure Engineering

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Design of an actuator for simulating wind-induced response of a building structure

  • Park, Eun Churn;Lee, Sang-Hyun;Min, Kyung-Won;Chung, Lan;Lee, Sung-Kyung;Cho, Seung-Ho;Yu, Eunjong;Kang, Kyung-Soo
    • Smart Structures and Systems
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    • v.4 no.1
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    • pp.85-98
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    • 2008
  • In this paper, excitation systems using a linear mass shaker (LMS) and an active tuned mass damper (ATMD) are presented to simulate the wind induced responses of a building structure. The actuator force for the excitation systems is calculated by using the inverse transfer function of a target structural response to the actuator. Filter and envelop functions are used to prevent the actuator from exciting unexpected modal responses and an initial transient response and thus, to minimize the error between the wind and actuator induced responses. The analyses results from a 76-story benchmark building problem for which the wind load obtained by a wind tunnel test is given, indicate that the excitation system installed at a specific floor can approximately reproduce the structural responses induced by the wind load applied to each floor of the structure. The excitation system designed by the proposed method can be effectively used for evaluating the wind response characteristics of a practical building structure and for obtaining an accurate analytical model of the building under wind load.

A Study on Development of Education System based on PBL for Architectural Structure Engineering (PBL을 기반으로 한 건축구조공학 교육시스템의 개발)

  • Kang, Jong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.1
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    • pp.51-58
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    • 2012
  • This paper deals with the development of educational system for Architectural Structure Engineering based on PBL(Problem-Based Learning). To develop this educational system, firstly, the eduction process for Architectural Structure Engineering is suggested by reviewing PBL and creativity. The suggested educational system is composed with hardware of structural model and courseware can be utilized in the education process. In this courseware, softwares for testing structures and teaching recommendations are involved. Finally, merits of this system in the real application are suggested and the complementariness are discussed for a future search.

Life Cycle Cost Breakdown Structure Development of Buildings through Delphi Analysis

  • Jeong, Jae-Hyuk;Shin, Han-Woo;Ryu, Han-Guk;Kim, Gwang-Hee;Kim, Tae-Hui
    • Journal of the Korea Institute of Building Construction
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    • v.12 no.5
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    • pp.528-538
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    • 2012
  • With domestic construction projects becoming bigger, more specialized and more advanced, the construction industry is striving to improve quality and quantity, and is diversifying functions and shapes. Nevertheless, the process of a construction project causes problems when we estimate construction price, because the cost breakdown structures are different in each step. The primary aim of this study was to estimate building life cycle cost using the Delphi method. The cost breakdown structure for life cycle cost was classified into planning, design, construction, maintenance and waste disposal, and each detailed classification was determined by estimating life cycle cost. Moreover, the developed cost breakdown structure is verified by consulting with experts to secure objectivity and validity.

A Study on Architectural Acoustic Characteristics of an Open Air Performance Hall with the Membrane Structure (테프론(TEFRON)막 구조 야외공연장의 건축음향특성 분석에 관한 연구)

  • Kim, Jung-Joong;Sohn, Jang-Yeul;Park, Hye-Na
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.649-653
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    • 2005
  • Recently, many membrane structure buildings are constructed with the trend of multi functional and high technological construction. The membrane structure has the characteristics such as distinguished architectural shape which can make variable space creation and can make economic use of material. Therefore, it is in the spotlight of sport complex, various concert hall, and public service buildings. However, the acoustic study of membrane structure has not been following up the increasing demand for the membrane structure. In this study, the acoustic characteristics of membrane structure will be studied and analyzed using architectural acoustic factors based on acoustic design theory And also, the differences between theoretical exhortation value and outcome of study will be studied with the basis of architectural acoustic material study.

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Computational Soil-Structure Interaction Design via Inverse Problem Formulation for Cone Models

  • Takewaki, Izuru;Fujimoto, Hiroshi;Uetani, Koji
    • Computational Structural Engineering : An International Journal
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    • v.2 no.1
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    • pp.33-42
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    • 2002
  • A computationally efficient stiffness design method for building structures is proposed in which dynamic soil-structure interaction based on the wave-propagation theory is taken into account. A sway-rocking shear building model with appropriate ground impedances derived from the cone models due to Meek and Wolf (1994) is used as a simplified design model. Two representative models, i.e. a structure on a homogeneous half-space ground and a structure on a soil layer on rigid rock, are considered. Super-structure stiffness satisfying a desired stiffness performance condition are determined via an inverse problem formulation for a prescribed ground-surface response spectrum. It is shown through a simple yet reasonably accurate model that the ground conditions, e.g. homogeneous half-space or soil layer on rigid rock (frequency-dependence of impedance functions), ground properties (shear wave velocity), depth of surface ground, have extensive influence on the super-structure design.

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Seismic Characteristics Evaluation According to Construction and Configuration Types of Fortress Structure (성곽구조물의 축조 및 구성형식에 따른 내진특성평가)

  • Kim, Ho-Soo;Yoo, Jun;Kim, So-Yeon;Kim, Jin-Wan
    • Journal of the Korean Association for Spatial Structures
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    • v.17 no.2
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    • pp.63-70
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    • 2017
  • In Korea, the occurrence frequency of earthquakes has recently increased, compared with the past. So, the various damages for cultural properties due to earthquake can be expected, and especially fortress structure is vulnerable to earthquake. Therefore, the resonable seismic characteristics evaluation is required to secure the safety for fortress structure with the various construction and configuration types. Also, we should consider the various applied load conditions as design variables. To this end, this study classifies fortress structures according to the construction and configuration types, and then applies the discrete element method to model and analyze fortress structures. Finally, the seismic characteristics is evaluated through slip condition due to the analysis results considering the various design variables.

An Experimental Study on the Application of Shelter Structure Using Deployable Scissors Systems (전개가능형 가위구조시스템을 이용한 쉘터구조물에의 적용성 검토에 관한 실험적 연구)

  • Lim, Ji-Sub;Choi, Sang-Soon;Jeong, Eul-Seok;Kim, Seung-Deog
    • Journal of the Korean Association for Spatial Structures
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    • v.14 no.3
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    • pp.101-108
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    • 2014
  • Recently, natural disasters such as earthquake, tsunami, typhoon and tornado are increasing, and cause huge economical loses and victim. Thus, when the disaster occurs, it is important to prepare emergency evacuation shelters for fast and easy construction compared to general building system. And, deployable structures will provide a great help for such aim. Deployable structures have the great advantage of being faster and easier to erect and dismantle compared to conventional building forms. In this study, we confirm the possibility of deployment for shelter structures using scissor structure system. First, Basic model was performed to recognize the appllicability of the deployable systems of the dome-shaped structure. Second, Advanced model that more improved inner space and deployment mechanism was confirmed.

Geometrical Parametric Study on Two-Way Beam String Structures (양방향 BSS 구조의 형상 매개 변수 연구)

  • Lee, Seunghye;Seo, Minhee;Park, Sangeun;Kim, Sun-Myung;Lee, Kihak;Lee, Jaehong
    • Journal of the Korean Association for Spatial Structures
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    • v.19 no.3
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    • pp.69-76
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    • 2019
  • A Beam String Structure (BSS) is a type of hybrid structures, which is composed of upper structural members, lower strings, and struts. Due to the advantages that the pre-tensioned strings elicit pre-caber of the upper structural members, the deflection can be greatly reduced without increasing the structural member size. In this study, a two-way beam string structure is proposed to endure bi-directional loading. The two-way beam string structure consists of two cable parts, namely, sagging and arch-shaped cables. A parametric study is presented aimed at proposing design guide lines of the two-way beam string structures. Numerical finite element analyses through the ABAQUS package were implemented to obtain their behaviors.

Analytical testing and evaluation of truss typed structures for tunnel maintenance

  • Lee, Dongkyu;Kim, Dohwan;Lee, Jaehong;Noh, Pilsung;Park, Sungsoo
    • Smart Structures and Systems
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    • v.15 no.4
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    • pp.949-961
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    • 2015
  • The goal of this study is to present numerical modeling and analytical testing in order to evaluate an innovative space truss typed temporary structure, which is used to maintenance and repair of road tunnels. The present space truss structure has merits to use UL-700 high strength steel tube as members and to carry out maintenance and repair works of road tunnels without blocking cars and transportations. Numerical modeling and analytical testing of the space truss are investigated by using commercial engineering software, i.e., ABAQUS 6.5-1, and then it is verified that the truss structure has both structural safety and effective function for maintenances and repairs of road tunnels.

Integrated Architectural Engineering Design Process Using BIM Tools (BIM 도구 활용을 통한 건축공학설계의 프로세스)

  • Kang, Da-Young;Shin, Kyoo-Chul
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.175-178
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    • 2010
  • Public institutions and owners have been introduced to use Building Information Modeling (BIM) tools. Learning BIM becomes an important factor in design process of undergrad program. The purpose of this study is to demonstrate an integrated architectural engineering design process using BIM tools. BIM education programs are analyzed to compare the level of detail in BIM education. An architectural engineering design class needs to involve BIM to introduce integrated process. An architectural engineering design process needs be based on understanding design, building structure, construction and building services. 3D Modeling helps understanding a building structure and checking environment-friendly element analysis. As a result of this research, new process of design education is proposed under four issues.

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