• Title/Summary/Keyword: de-construction

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A Study on the relationship between contemporary fashion and deconstructive architecture (해체주의 건축양식과 현대패션의 관계에 관한 연구)

  • 김혜정
    • Journal of the Korean Home Economics Association
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    • v.35 no.3
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    • pp.89-100
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    • 1997
  • The formal constructions of deconstructive architecture in the contemporary fashion expressed as intertexruality, difference and trace and the working of DIS and DE, and intertextuality in deconstructive has manifested itself as the intertextuality of material, hybridization of items, the blending of modes and the bi-sexuality of sexes. And the difference and trace found in fashion are fantastic and playful and come to exist as historicity. DIS and DE in fashion shows the retrogression of gravity through non-structural silhouette. Their disentring expression emerged as construction through mixture and repetition as well as overlapping of planes or spaces. And their disjuctive representation appeared in the form of mutual juxtaposition and substitution with the double-side of formal construction in fuctional terms.

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Buckling analysis of complex structures with refined model built of frame and shell finite elements

  • Hajdo, Emina;Ibrahimbegovic, Adnan;Dolarevic, Samir
    • Coupled systems mechanics
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    • v.9 no.1
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    • pp.29-46
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    • 2020
  • In this paper we deal with stability problems of any complex structure that can be modeled by beam and shell finite elements. We use for illustration the steel plate girders, which are used in bridge construction, and in industrial halls or building construction. Long spans, slender cross sections exposed to heavy loads, are all critical design points engineers must take into account. Knowing the critical load that will cause lateral torsional buckling of the girder, or load that can lead to web buckling, as an important scenario to consider in a design process.Many of such problem, including lateral torsional buckling with influence of lateral supports and their spacing on critical load can be solved by the proposed method. An illustrative study of web buckling also includes effects of position and spacing of transverse and longitudinal web stiffeners, where stiffeners can be modelled optionally using shell or frame elements.

The Expression-Form Decentering Phenomenon in Modern Fashion (현대패션에 나타난 탈중심화의 표현방식)

  • Kwon, Jung-Sook
    • Fashion & Textile Research Journal
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    • v.6 no.3
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    • pp.275-284
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    • 2004
  • Post-structuralism in Fashion tendency since the late 20th century has been developing in complicated and diverse modes. Post-structuralism has revealed the inconsistency of Western philosophy contering on rationalism, and has formed an important thought system of modern time through open thinking and various ways of expression. Among them, decentering which is formed from the concern for outlying 'others' while denying self-centered 'man himself, has supplied a new cognizance paradigm in the expression and interpretation of fashion formation. This paper has analyzed the expression-form of fashion in three ways: de-construction, discontinuance, and esthetic appreciation of the others. Finarly this study has supplyed, though decentering thinking, a new esthetic cognizance principle for fashion which is expressed in free and multiple meaning and form.

A MODEL FOR SELECTION, AWARDING, AND MONITORING OF PPP PROJECTS IN DEVELOPING COUNTRIES; HEALTH CARE FACILITIES IN COLOMBIA

  • Henry Arboleda-Mantilla;Carlos A. Arboleda
    • International conference on construction engineering and project management
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    • 2013.01a
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    • pp.344-351
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    • 2013
  • Private participation on public infrastructures projects is being promoted by governments of several developing countries, among them Colombia. As a result, several advantages such as service delivery efficiency, technology application and faster execution of the projects have been recognized. Hence, the Colombian Government is looking for schemes that allow the private investment in projects like hospitals, schools, prisons and public edification. In this paper, experiences in PPP from other countries were analyzed and adjusted to the Colombian environment. As a result, a model adapted to Colombia is presented, based on a well-developed case from Spain. The awarding process is defined by economic criteria, previous compliance of minimum technical exigencies. Once the infrastructure is operating, contractual periodical payments will be done, based on the performance of the facility.

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Power spectral density method performance in detecting damages by chloride attack on coastal RC bridge

  • Mehrdad, Hadizadeh-Bazaz;Ignacio J., Navarro;Victor, Yepes
    • Structural Engineering and Mechanics
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    • v.85 no.2
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    • pp.197-206
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    • 2023
  • The deterioration caused by chloride penetration and carbonation plays a significant role in a concrete structure in a marine environment. The chloride corrosion in some marine concrete structures is invisible but can be dangerous in a sudden collapse. Therefore, as a novelty, this research investigates the ability of a non-destructive damage detection method named the Power Spectral Density (PSD) to diagnose damages caused only by chloride ions in concrete structures. Furthermore, the accuracy of this method in estimating the amount of annual damage caused by chloride in various parts and positions exposed to seawater was investigated. For this purpose, the RC Arosa bridge in Spain, which connects the island to the mainland via seawater, was numerically modeled and analyzed. As the first step, each element's bridge position was calculated, along with the chloride corrosion percentage in the reinforcements. The next step predicted the existence, location, and timing of damage to the entire concrete part of the bridge based on the amount of rebar corrosion each year. The PSD method was used to monitor the annual loss of reinforcement cross-section area, changes in dynamic characteristics such as stiffness and mass, and each year of the bridge structure's life using sensitivity equations and the linear least squares algorithm. This study showed that using different approaches to the PSD method based on rebar chloride corrosion and assuming 10% errors in software analysis can help predict the location and almost exact amount of damage zones over time.

Investigation on the flexural behavior of an innovative U-shaped steel-concrete composite beam

  • Turetta, Maxime;Odenbreit, Christoph;Khelil, Abdelouahab;Martin, Pierre-Olivier
    • Steel and Composite Structures
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    • v.34 no.3
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    • pp.441-452
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    • 2020
  • Within the French CIFRE research project COMINO, an innovative type of composite beam was developed for buildings that need fire resistance with no additional supports in construction stage. The developed solution is composed of a steel U-shaped beam acting as a formwork in construction stage for a reinforced concrete part that provides the fire resistance. In the exploitation stage, the steel and the reinforced concrete are acting together as a composite beam. This paper presents the investigation made on the load bearing capacity of this new developed steel-concrete composite section. A full-scale test has been carried out at the Laboratory of Structural Engineering of the University of Luxembourg. The paper presents the configuration of the specimen, the fabrication process and the obtained test results. The beam behaved compositely and exhibited high ductility and bending resistance. The shear connection in the tension zone was effective. The beam failed by a separation between the slab and the beam at high deformations, excessive shear forces conducted to a failure of the stirrups in this zone. The test results are then compared with good agreement to analytical methods of design based on EN 1994 and design guidelines are given.

Effect of parameters on the tensile behaviour of textile-reinforced concrete composite: A numerical approach

  • Tien M. Tran;Hong X. Vu;Emmanuel Ferrier
    • Advances in concrete construction
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    • v.16 no.2
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    • pp.107-117
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    • 2023
  • Textile-reinforced concrete composite (TRC) is a new alternative material that can satisfy sustainable development needs in the civil engineering field. Its mechanical behaviour and properties have been identified from the experimental works. However, it is necessary for a numerical approach to consider the effect of the parameters on TRC's behaviour with lower analysis duration and cost related to the experiment. This paper presents obtained results of the numerical modelling for TRC composite using the cracking model for the cementitious matrix in TRC. As a result, the TRC composite exhibited a strain-hardening behaviour with the cracking phase characterized by the drops in tensile stress on the stress-strain curve. This model also showed the failure mode by multi-cracking on the TRC specimen surface. Furthermore, the parametric studies showed the effect of several parameters on the TRC tensile behaviour, as the reinforcement ratio, the length and position of the deformation measurement zone, and elevated temperatures. These numerical results were compared with the experiment and showed a remarkable agreement for all cases of this study.

The Construction of DCAF (DeCentralized Analysis Farm) (탈중심분산팜(DeCentralized Analysis Farm)의 구현)

  • 한대희;권기환;조기현;오영도;손동철;이지수
    • Proceedings of the Korean Information Science Society Conference
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    • 2004.04a
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    • pp.46-48
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    • 2004
  • 표준모형의 힉스입자를 찾는 것을 목적으로 미국 페르미 연구소에서 수행되고 있는 CDF 실험은 전 세계에 11개국 55개의 연구소가 참여하고 있다. 테바트론가속기에서 산출되어지는 데이타를 분석하는데는 많은 컴퓨팅 자원이 필요한데 Run IIb 기간동안 생성되는 데이타를 처리하고, 전 세계에 흩어져 있는 연구원들이 사용하기에는 페르미 연구소의 분석용 팜(Centralized Analysis Farm)은 자원이 부족하다. 따라서, 실험에 참여하고 있는 여러 나라의 컴퓨팅 자원을 공유할 수 있는 방안으로 DCAF(DeCentralized Analysis Farm)가 개발되었다. DCAF는 Grid 구현을 위한 중간 단계라 할 수 있으며, 궁극적으로 CMS의 Tier-1 환경과의 통합 구축을 목적으로 하고 있다.

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Structural novelty detection based on sparse autoencoders and control charts

  • Finotti, Rafaelle P.;Gentile, Carmelo;Barbosa, Flavio;Cury, Alexandre
    • Structural Engineering and Mechanics
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    • v.81 no.5
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    • pp.647-664
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    • 2022
  • The powerful data mapping capability of computational deep learning methods has been recently explored in academic works to develop strategies for structural health monitoring through appropriate characterization of dynamic responses. In many cases, these studies concern laboratory prototypes and finite element models to validate the proposed methodologies. Therefore, the present work aims to investigate the capability of a deep learning algorithm called Sparse Autoencoder (SAE) specifically focused on detecting structural alterations in real-case studies. The idea is to characterize the dynamic responses via SAE models and, subsequently, to detect the onset of abnormal behavior through the Shewhart T control chart, calculated with SAE extracted features. The anomaly detection approach is exemplified using data from the Z24 bridge, a classical benchmark, and data from the continuous monitoring of the San Vittore bell-tower, Italy. In both cases, the influence of temperature is also evaluated. The proposed approach achieved good performance, detecting structural changes even under temperature variations.