Form and Structural Properties of a New Lattice Shell String Structure

Yu, Yao; Zhang, Z.-h.; Ma, Guangying; Dong, Shilin

doi:10.20898/j.iass.2016.188.679

Cited by 1 publication

(3 citation statements)

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“…members and the magnitude of plastic strain in the models are increased significantly by reducing the structure span of the outer cable-supported latticed shell structure. (2) The results of the calculation examples show that the plastic members mainly occur in the mid-span and adjacent support members of the latticed shell under rare earthquakes. However, in the anti-seismic measures stipulated in the China's current national standard "Code for Seismic Design of Buildings," it is unreasonable to only pay attention to the reinforcement of the adjacent support rods.…”

Section: Declaration Of Conflicting Interestsmentioning

confidence: 94%

“…As the initial pretensions are related to the arched rise of the radial cable, 9 and 10 m were adopted as the cable arch rises to consider different initial pretensions. Documents 14,15 can be found for the approach used to derive the calculated initial pretension forces of members, which are not listed here due to space limitations. According to the different values of the above six parameters, the analysis schemes of the model are shown in Table 1.…”

Section: Calculation Modelmentioning

confidence: 99%

“…1 The inner and outer cable-supported latticed shell structure is a new type of cable-supported shell structure, which has been used in the natatorium and gymnasium project of the Yueqing Sport Center (Figure 1). 2 It differs significantly from traditional suspendome structure because of the different pretension support systems. The traditional suspendome is supported by inclined cables, looped cables, and struts.…”

Section: Introductionmentioning

confidence: 99%

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An analysis of the elastic-plastic seismic response of inner and outer cable-supported latticed shell structures

Yao

Zhou³

et al. 2022

International Journal of Space Structures

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This paper studies the elastic-plastic seismic response of 12 inner and outer cable-supported latticed shell structures under fortification intensity and rare earthquakes. The influencing factors of the 12 models were analyzed. These included span, initial pretension, bottom structure form, connection condition of support, rise-span ratio, and inner cable-supported latticed shell span. Based on the calculation results, we summarize the plastic region of the top latticed shell and the plastic development extent under 7-degree and 8-degree fortification intensity and rare earthquakes, the post-seismic cable force changes, and the development characteristics and distribution rules of residual deformation of top latticed shell. Our investigation indicates that the span, bottom structure form, and connection condition of the support are most sensitive to the elastic-plastic response of the inner and outer cable-supported latticed shell. A strong earthquake can cause a loss of pretension, which primarily happens at inner looped cables and inner inclined cables of the inner cable-supported latticed shell. Cable force change is more sensitive to the asymmetric bottom structure, the latticed shell with a high rise-span ratio, and the span of the inner cable-supported latticed shell. The inner and outer cable-supported latticed shell model loses less cable force after a strong earthquake, and the post-seismic loss ratio is less than 10%, even under the impact of a severe, 9-degree earthquake.

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Section: Declaration Of Conflicting Interestsmentioning

confidence: 94%

Section: Calculation Modelmentioning

confidence: 99%