Dynamic Analyses and Simplified Methods for Evaluating Complicated Suspend-dome Structures Subjected to Sudden Cable Failure

Zhang, Chao; Lai, Zhichao; Yang, Xiaoqiang; Li, Qiang; Zhang, Zilong; Fu, Xindi

doi:10.1007/s13296-022-00676-1

Cited by 3 publications

(2 citation statements)

References 23 publications

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“…They discussed the structural displacement and load-carrying capacity after implementing 34 different cable failure scenarios. Chao Zhang et al [11] utilized an improved alternative load path implicit analysis method to simulate the beam-cable failure in a suspen-dome. They analyzed parameters including the failure time, failure path, and damping ratio, thereby providing recommended numerical values.…”

Section: Introductionmentioning

confidence: 99%

Study on the Dynamic Response of the Component Failure of Drum-Shaped Honeycomb-Type III Cable Dome with Quad-Strut Layout

Zhang

Zhu

et al. 2023

Buildings

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The drum-shaped honeycomb-type cable dome departs from traditional concepts and incorporates the idea of multiple strut configurations. It is the most diverse type of cable dome structure. Both cables and struts serve as the main load-bearing components. Analyzing the effects of local component failure is crucial for designing large-scale cable domes able to resist continuous collapse. A numerical analysis model using the ANSYS finite element method with a 120 m span is established. Dynamic analysis methods are employed to study the response of structural internal forces and displacements during the failure of different component types. By defining the internal force dynamic coefficient and change coefficient, the structural continuity collapse resulting from component failure is determined based on computational results and observation of structural deformations. Furthermore, the importance of the various components within the overall structure is classified. The research findings indicate that the failure of individual components does not cause overall instability of the structure. The importance level of the ring cables and some upper chord ridge cables is higher than that of the inclined cables. Class a struts have a higher importance level than class b struts. Additionally, the importance level of outer ring components is higher than that of inner ring components.

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Section: Introductionmentioning

confidence: 99%

Study on the Dynamic Response of the Component Failure of Drum-Shaped Honeycomb-Type III Cable Dome with Quad-Strut Layout

Zhang

Zhu

et al. 2023

Buildings

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“…In these cases, the traditional static methods (Park et al, 2007;Zhang et al, 2023) used in cable failure analysis cannot effectively simulate the real situation of the structure. For Solving structural dynamic response…”

Section: Introductionmentioning

confidence: 99%

A numerical method to solve structural dynamic response caused by cable failure

Li,

Xue,

et al. 2023

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PurposeInstantaneous unloading with equal force is usually used to simulate the sudden failure of cables. This simulation method with equivalent force requires obtaining the magnitude and direction of the force for the failed cable in the normal state. It is difficult, however, to determine the magnitude or direction of the equivalent force when the shape of the cable is complex (space curve). This model of equivalent force may be difficult to establish. Thus, a numerical simulation method, the instantaneous temperature rise method, was proposed to address the dynamic response caused by failures of the cables with complex structural form.Design/methodology/approachThis method can instantly reduce the cable force to zero through the instantaneous temperature rise process of the cable. Combined with theoretical formula and finite element model, the numerical calculation principle and two key parameters (temperature rise value and temperature rise time) of this method were detailed. The validity of this approach was verified by comparing it with equivalent force models. Two cable-net case with saddle curved surfaces were presented. Their static failure behaviors were compared with the dynamic failure behaviors calculated by this method.FindingsThis simulation method can effectively address the structural dynamic response caused by cable failure and may be applied to all cable structures.Originality/valueAn instantaneous temperature rise method (ITRM) is proposed and verified. Its calculation theory is detailed. Two key parameters, temperature rise value and temperature rise time, of this method are discussed and the corresponding reference values are recommended.

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A simplified approach to assess dynamic amplification due to accidental release of formwork traveller during the construction stages of bridges

Sánchez-Haro,

Capellán,

Pérez

et al. 2024

Engineering Structures

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Dynamic Analyses and Simplified Methods for Evaluating Complicated Suspend-dome Structures Subjected to Sudden Cable Failure

Cited by 3 publications

References 23 publications

Study on the Dynamic Response of the Component Failure of Drum-Shaped Honeycomb-Type III Cable Dome with Quad-Strut Layout

Study on the Dynamic Response of the Component Failure of Drum-Shaped Honeycomb-Type III Cable Dome with Quad-Strut Layout

A numerical method to solve structural dynamic response caused by cable failure

A simplified approach to assess dynamic amplification due to accidental release of formwork traveller during the construction stages of bridges

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