• Title/Summary/Keyword: Corrugated steel plate

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Numerical study on the performance of corrugated steel shear walls

  • Edalati, S.A.;Yadollahi, Y.;Pakar, I.;Emadi, A.;Bayat, M.
    • Wind and Structures
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    • v.19 no.4
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    • pp.405-420
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    • 2014
  • This paper examines the nonlinear behaviour of corrugated steel plate shear walls under lateral pushover load. One of the innovations in these types of walls which have used in recent years is the use of the corrugated steel shear walls rather un-stiffness plates. In the last decades many experimental studies have been done on the on the corrugated steel shear walls. A finite element analysis that includes both material and geometric nonlinearities is employed for the investigation. A comparison is made between the behaviour of steel shear walls with sinusoidal corrugated plate and trapezoidal corrugated plate. The effects of parameters such as the thickness of the corrugated plate, the corrugation depth in the corrugated plates and the corrugation length of the infill of the corrugated plates, are investigated. The results of this study have demonstrated that in the wall with constant dimensions, the trapezoidal plates have higher energy dissipation, ductility and ultimate bearing than sinusoidal waves, while decreasing the steel material consumption.

Buckling Behaviors of Plate Girder with Corrugated Steel Web (파형 복부판을 갖는 플레이트 거더의 좌굴거동)

  • Ji, Hyo-Seon
    • Journal of Korean Society of Steel Construction
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    • v.23 no.2
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    • pp.221-228
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    • 2011
  • Because steel plate girder bridge has big slenderness ratio, buckling is a major design factor. The objective of this study is to analyze the buckling behaviors of plate girder with I-girder and corrugated steel web and to examine the advantages of plate girder with corrugated steel web. Various parametric study according to the change of web height, web thickness, and load condition are examined. It is shown that plate girder with corrugated steel web is more effective than plate girder with I-girder and proper corrugated angle(${\theta}$) is $15^{\circ}{\sim}22^{\circ}$.

Seismic Behavior Investigation of the Corrugated Steel Shear Walls Considering Variations of Corrugation Geometrical Characteristics

  • Farzampour, Alireza;Mansouri, Iman;Hu, Jong Wan
    • International journal of steel structures
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    • v.18 no.4
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    • pp.1297-1305
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    • 2018
  • The corrugated steel plate shear walls have recently been proposed to address the seismic issues associated with simple steel plate shear walls; however, stiffness, strength, and ductility of the corrugated shear walls are significantly affected by varying the corrugation geometry under seismic loading. The present study investigates steel shear walls' models with corrugated or simple infill plates subjected to monotonic and cyclic loads. The performance of the corrugated steel plate is evaluated and then compared to that of the simple steel plates by evaluating the damping ratios and energy dissipation capability. The effect of corrugation profile angle, the existence of an opening, and the corrugation subpanel length are numerically investigated after validation of the finite element modeling methodology. The results demonstrate that incorporating corrugated plates would lead to better seismic damping ratios, specifically in the case of opening existence inside of the infill plate. Specifically, the corrugation angle of $30^{\circ}$ decreases the ultimate strength, while increasing the initial stiffness and ductility. In addition, the subpanel length of 100 mm is found to be able to improve the overall performance of shear wall by providing each subpanel appropriate support for the adjacent subpanel, leading to a sufficient buckling resistance performance.

The Study on problems in Construction of Corrugated Steel Underground Culverts and Complementary Measures Thereof (파형강판 지중암거의 시공상 문제점 및 보완에 대한 고찰)

  • Jung, Young-Hwa;Seong, Yoo-Kyeong;Chang, Dong-Hui
    • Journal of Industrial Technology
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    • v.28 no.A
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    • pp.133-140
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    • 2008
  • The Corrugated steel plate structure(CPS) can be applied to construction sites with various purposes, and the merits of CPS such as economical efficiency and swiftness can be utilized when it is constructed properly in consideration of its characteristics. However, in Korea, since the history of corrugated steel plate culvert is relatively short, there are not enough design standards. This research is prepared for finding out the causes through examining and analyzing the problems based on the examples from the existing constructions. Moreover, this study can be utilized in preparing designs and design standards of corrugated steel plate culvert in the future and devising prevention measures and complementary measures by studying construction methods considering features of construction sites and circumstances, several points to be considered while carrying out construction works and prevention measures of a problem with the existing structures.

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Numerical study on the structural performance of corrugated low yield point steel plate shear walls with circular openings

  • Shariati, Mahdi;Faegh, Shervin Safaei;Mehrabi, Peyman;Bahavarnia, Seyedmasoud;Zandi, Yousef;Masoom, Davood Rezaee;Toghroli, Ali;Trung, Nguyen-Thoi;Salih, Musab NA
    • Steel and Composite Structures
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    • v.33 no.4
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    • pp.569-581
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    • 2019
  • Corrugated steel plate shear wall (CSPSW) as an innovative lateral load resisting system provides various advantages in comparison with the flat steel plate shear wall, including remarkable in-plane and out-of-plane stiffnesses and stability, greater elastic shear buckling stress, increasing the amount of cumulative dissipated energy and maintaining efficiency even in large story drifts. Employment of low yield point (LYP) steel web plate in steel shear walls can dramatically improve their structural performance and prevent early stage instability of the panels. This paper presents a comprehensive structural performance assessment of corrugated low yield point steel plate shear walls having circular openings located in different positions. Accordingly, following experimental verification of CSPSW finite element models, several trapezoidally horizontal CSPSW (H-CSPSW) models having LYP steel web plates as well as circular openings (for ducts) perforated in various locations have been developed to explore their hysteresis behavior, cumulative dissipated energy, lateral stiffness, and ultimate strength under cyclic loading. Obtained results reveal that the rehabilitation of damaged steel shear walls using corrugated LYP steel web plate can enhance their structural performance. Furthermore, choosing a suitable location for the circular opening regarding the design purpose paves the way for the achievement of the shear wall's optimal performance.

Safety Assessment to Construction Position of Constructed Steel Structures under Declinating Earth Pressure (편토압을 받는 파형강판 구조물의 시공위치별 안전성 평가)

  • Lee, Sang-Hyun;Lim, Heui-Dae
    • Journal of the Korean Society of Safety
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    • v.23 no.1
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    • pp.28-34
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    • 2008
  • The corrugated steel plate structures is applied to the construction of mountain tunnel portal part with shallow depth, the tunnel on the outskirts of urban areas and ecology move passage. In this study, A finite element method is used for research the behavior of corrugated steel plate structures due to construction position under declinating earth pressure and excavation depth. A finite element method were performed varying construction position(10, 15, 20 and 25m) from slope and excavation depth from surface. The hoop thrust and moment, displacement of corrugated steel plate subjected to construction position and excavation depth is determined from a finite element method. From results of finite element method, it was found that the increase of thrust and the decrease of displacement as the amount of distance increase from slope with construction position. But the thrust and moment, displacement has not different value with excavation depth.

Analysis Model of Corrugated Steel Plates for Soil-Metal Box Culverts (지중강판 박스구조물을 위한 파형강판 해석 모델)

  • Choi, Dongho;Lee, Jongsun;Na, Hosung
    • Journal of the Korean GEO-environmental Society
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    • v.11 no.11
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    • pp.5-18
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    • 2010
  • In this paper, a 3-dimensional stiffened plate model for soil-metal box structures is proposed. 3-dimensional stiffened plate model is enable to model corrugated steel plates of soil metal box culverts considering section modulus and section properties of longitudinal and horizontal direction from a corrugated steel plate. Loading conditions which causes maximum displacement and maximum moment according to the step construction stages(a back filling to the top of the plate, a back filling to the maximum depth of cover, and loading of live loads) was applied and the behaviors of the soil metal box culverts was analyzed. Analysis results of 3-dimensional stiffened model were compared with those of 2-dimensional model, 3-dimensional equivalent plate model and 3-dimensional corrugated plate model. As results, the behaviors of 2-dimensional model and 3 dimensional equivalent model are different from 3-dimensional corrugated plate model but the result of 3-dimensional stiffened model has good agreement with that of 3-dimensional corrugated plate model.

Determination of Optimal Section for Corrugated Steel Plates (파형강판의 최적단면 결정)

  • Na, Ho-Sung;Choi, Dong-Ho;Yoo, Hoon
    • Journal of the Korean GEO-environmental Society
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    • v.12 no.3
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    • pp.5-12
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    • 2011
  • In this paper, after studying structural performance for the representative corrugated steel plate used in Korea, we proposed the optimum shape for section of corrugated steel plate considering a width of steel plates that can be produced currently in the factory. Using AISI(1986) in examination for the performance of the corrugated steel plate, we determined the mechanical limit of the optimum sections considering shear force and bending moment of corrugated steel plate and also determined the geometric limit of them considering formability, shapes and ratio between width of steel plate before forming and that after forming. As a result of examination for performance of steel plate applying algorithm for searching optimal sections algorithm developed in this study to the existing representative corrugated steel plate, allowable force and moment of inertia indicated the maximum values at bending radius 76mm and internal bending angle $50^{\circ}$. And as an application result of the optimum design system that used SS490 with 1,550mm of width and 4,700mm of length considering current production situation in Korea, we developed the new section with more than 2 times of structural performance comparing with existing corrugated steel plate.

A Study on Shear and Flexural Performance Evaluation of Circularly Corrugated Plate (원형 파형강판의 전단 및 휨 성능평가에 관한 연구 -전단 및 휨강도 설계식 제안-)

  • Moon, Seong Hwan;Oh, Sang Hoon
    • Journal of Korean Society of Steel Construction
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    • v.27 no.5
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    • pp.455-470
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    • 2015
  • This research suggest method to calculate more accurate shearing and bending force on corrugated steel plate that it is produced domestically. This research analyze limitation of former formula on domestic design standard and existing research. In addition The strength calculation formula on corrugated steel plate was proposed according to result of the experiment and FEM analysis. In this study, the result that compare experiment with analysis using the proposed shear buckling coefficient and limit width to thickness ratio indicate similar behavior. As the result of the research, It is judged that the structural member design and performance evaluation of the corrugated steel plate was conveniently applied.

The Evaluation of Structural Stability of Corrugated Steel Plate Method applied in High-Speed Railway Vertical Tunnel Structures (고속철도 수직구 터널구조물에 적용된 파형강판공법의 구조적 안정성 검토)

  • Chung, Jee-Seung;Shin, Hwa-Cheol;Kim, Jin-Gu
    • Journal of the Korean Society of Safety
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    • v.31 no.2
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    • pp.64-69
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    • 2016
  • In this paper, structural analysis of High-Speed railway vertical tunnel structures was performed to verify the structural stability. The corrugated steel plate method was applied to the vertical tunnel structures for its simple construction method and low cost. The structural stability of Wall, Connection and Storage section was performed with LRFD and ASD design method at joint part, buckling, stress and plastic hinge. From the results, all of vertical tunnel structures shown the structural stability regardless of design method and structure types. So, the application of corrugated steel plate in vertical tunnel structures instead of cast-in-placed concrete was quite enough.