• Title, Summary, Keyword: 와렌 트러스

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A Study on Adaptation of Neural Network to Warren Truss Design (와렌 트러스 설계에의 신경망 적용에 관한 연구)

  • Shin, Dong Cheol;Lee, Seung Chang;Cho, Young Sang
    • Journal of Korean Society of Steel Construction
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    • v.15 no.4
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    • pp.413-422
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    • 2003
  • Most engineers tend to rely on their intuition or existing data in formulating structural design or preliminary estimate of various conditions. Because of these variations, the artificial neural network is used as an alternative design model of the warren truss since it can handle uncertainty through the probability method. This research validated the approximate structural design model of the warren truss, with its proper parameter values of the neural network and design process falling within 10 percent torrence of the different designs that resulted between this model and the MIDAS program. The suggested model for the process was adapted for the truss design using the member section table, while time saving and efficiency are based on the allowed range of torrence.

A Study on the Structural Behaviour of Staggered Truss System by the Shape of Truss (트러스 형태에 따른 스태거드트러스 골조시스템의 구조특성에 관한 연구)

  • Rha, Chang-Soon;Hong, Yoon-Soo;Yu, Eun-Jong
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.30 no.3
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    • pp.199-206
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    • 2017
  • This paper analyzed structural behaviors of the staggered truss system, typically used in low seismicity regions, resisting the lateral loads such as wind and seismic load. A comparative study of cost and efficiency was carried out by analysing and designing the 10- and 20-story buildings with various types of truss, including pratt, howe, warren, K-, and vierendeel, which may typically be used in staggered truss system. In design, column and truss members are selected in group, and the efficiency of the member design was judged by average demand capacity ratio of the all members in same group. And economic analysis of the system was investigated by the quantity of the structural members. As a result, staggered truss system with the pratt truss and warren truss showed the most economical and efficient performance for 10-story building, and 20-story building, respectively.

Seismic Performance Evaluation of Staggered Truss System by the Shape of Truss (트러스 형태에 따른 스태거드트러스 골조시스템의 내진성능 평가)

  • Hong, Yoon-Soo;Yu, Eun-Jong;Rha, Chang-Soon
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.30 no.5
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    • pp.397-404
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    • 2017
  • The purpose of this study is to evaluate the seismic performance of Staggered Truss Frame(STF) system while changing a shape of truss. The model of this project is a office building of ten floors with Pratt, Howe, Warren, K and Vierendeel truss system applied on each model. Next step is to select the section of elements which satisfy the highest demand capacity ratio by structure design considering gravity load, earthquake load and wind load and then calculate natural period, base shear and story drifts. On the basis of these values, Capacity Spectrum Method(CSM) shows the plastic behavior of STF system such as performance point of Design Earthquake(DE) and Maximum Considered Earthquake(MCE), yield state, plastic hinge etc. to be compared with other truss systems. As a result, Vierendeel STF system especially was found to have the highest strength and stiffness to the corresponding earthquake and all the models for each truss shape fulfilled the target performance level.