Nonlinear Behaviors of Cable Spoke Wheel Roof Systems

Park, Kang-Geun; Lee, Mi-Hyang; Park, Mijin

doi:10.9712/kass.2017.17.1.031

Cited by 6 publications

(5 citation statements)

References 2 publications

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“…Cables always have a nonlinear behavior that has large displacement. The cable element has been studied of great interest for many years [1][2][3][4][5][6][7][8][9]. The objective of this study is to analysis the mechanical characteristics on the geometric nonlinear behavior of a radial cable roof system and a spoke wheel roof system for long span retractable cable roofs.…”

Section: Geometrical Nonlinear Analysis Of Retractable Large Spanmentioning

confidence: 99%

Design of large space cable roofs with retractable systems to open and close

2017

IJLTET

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Section: Geometrical Nonlinear Analysis Of Retractable Large Spanmentioning

confidence: 99%

Design of large space cable roofs with retractable systems to open and close

2017

IJLTET

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“…Cables having these advantages can be applied to the large span structures with lightweight roof alone or in combination with other structural elements. The use of cable systems in the large span roof and the structure with free form design can widen the possibility of the building construction in terms of economy and formability [5][6][7][8][9][10][11][12]. When using cables as structural members, it is difficult to expect the stability of cable system in a relaxed state.…”

Section: Design Concepts Of Cable Structures-mentioning

confidence: 99%

Design of cable net-membrane roofs with reverse curvature by nonlinear analysis

2017

IJLTET

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INTRODUCTIONThe cables are very high in tensile strength, but they have very low flexural stiffness occurring in large deformation. Therefore, the structural system with a small deformation as much as possible should be considered at building design, and the analysis considering geometric nonlinearity should be performed. In order to minimize the deformation of the cable roof system, it is should be ensured the necessary rigidity, a roof system with upward and downward curvatures is very effectively structural system. The cable roof system has that the ridge and valley cables are connected by bracing cables to resist the up and down load. The structural concept of a radial cable roof system is consists of outer compression ring and continuous radial truss cables. The outer circular ring acting compression forces is setting in equilibrium with the tensile forces of inner radial cables. The upper ridge cables and the lower valley cables with a large prestress are connected to ensure structural stability and rigidity. The ridge cables and the valley cables are prestressed in the reverse direction [1][2][3][4]. This paper is carried out analyzing and comparing the tensile forces of cables and deflection of curved roof systems by vertical loads. The elements for analysis uses a tension only cable element and a triangular membrane element with 3 degree of freedom in each node. The authors will estimate that the curved cable-membrane roof system with reverse curvature is one of a very effectively structural system according to the sag ratio of ridge cables and the rise ratio of valley cables.

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“…The retractable roof is designed as a full control system to overcome extreme outdoor environments such as extreme hot, cold weather, strong wind or sunlight, and also the cable roof greatly can reduce the roof weight compared to other rigid structural system [3][4][5][6][7][8][9][10]. …”

Section: Structural Systems Of Radial Cable Roofmentioning

confidence: 99%

“…Determining the pretension and initial sag of cable roof system is essential in a design process, and the shape of roof is changed by pretension. The flexible cable system has greatly affected on the sag and pretension [9]. This study is carried out comparing the tensile force and deflection of a cable spoke wheel system by the post height of center hub for the vertical load 0.25, 0.5, 0.75 and 1.0 kN/m 2 , respectively.…”

Section: Mechnical Characteristics Of Circular Cable Roof Systemsmentioning

confidence: 99%

“…Therefore, the geometric nonlinear analysis of cable systems does not exhibit typical nonlinear behavior, it is necessary to handle initial pre-stress forces, iterative numbers of load step, a data of convergence criteria, an artificial control data of negative cable and a choice of nonlinear iterative method. In this paper, it will be compared for the tensile force of cables and deflection of a roof for retractable circular cable structures according to the height of roof posts [3][4][5][6][7][8][9][10]. …”

Section: Introductionmentioning

confidence: 99%

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Mechanical characteristics of Circular cable roof systems

2017

IJIET

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Abstract-A circular cable roof system in this study is a type of structures in which the part of entire roof can be opened and closed. The circular cable roof system with reverse curvature cable trusses can effectively carry vertical load in up and downward direction, the outer roof is a fixed lightweight membrane and the middle part is a roof system that can be opened and closed. The retractable roof is designed as the control system of optimum environment in which the part of roof can be open or closed to overcome extreme outdoor environment such as extreme hot, cold weather or strong sunlight. This research is analyzed the mechanical characteristics of retractable circular cable roof systems for the internal force of cables and the deflection of a roof according to hub or post heights. The structural advantages of a radial cable roof system, a spoke wheel cable roof system and a cable network system are compared for the results of geometrical nonlinear analysis by using Midas 2016 software.

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Nonlinear Behaviors of Cable Spoke Wheel Roof Systems

Cited by 6 publications

References 2 publications

Design of large space cable roofs with retractable systems to open and close

Design of large space cable roofs with retractable systems to open and close

Design of cable net-membrane roofs with reverse curvature by nonlinear analysis

Mechanical characteristics of Circular cable roof systems

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