Load resistance and hysteretic response of rhombic grid hyperboloid‐latticed shell subjected to combined vertical and horizontal loads

• Published in: The structural design of tall and special buildings 2018-08, Vol.27 (11), p.n/a
• Main Authors: Zhu, Bo‐Li, Guo, Yan‐Lin, Zhou, Peng, Zhang, You‐Hao
• Format: Article
• Language: English
• Subjects: Carrying capacity; Columns (structural); Deformation mechanisms; elastic buckling behavior; Failure mechanisms; FE numerical investigation; Finite element method; Horizontal loads; Hysteresis; hysteretic response; interactive design curve; Load; Load carrying capacity; Load resistance; Mathematical analysis; rhombic grid hyperboloid‐latticed shell (RGHLS) with and without a door opening; Safety margins; Stability; Transparency; Vertical loads
• ISSN: 1541-7794; 1541-7808
• DOI: 10.1002/tal.1481

Summary A new type of rhombic grid hyperboloid‐latticed shell (RGHLS) being investigated in this study is only formed by major and secondary inclined columns without any circumferential hoop members. This intends to achieve more transparency for architectural effect by neglecting its circumferential hoop members and lateral braces in radial direction of the RGHLS, and meanwhile, the RGHLS is expected to experience a significant strength reduction. This paper numerically investigates the load resistance and hysteretic response of such RGHLS subjected to combined vertical and horizontal loads by adopting finite element method, where multicolumn interaction instability failure mechanism and load‐carrying capacity of the RGHLS are being focused on. It was found that the RGHLS failed by multicolumn interactive instability between the major and secondary columns, with associated in‐plane and out‐of‐plane flexural deformations of the columns. The overall interactive load‐carrying capacity design curve N/Nu‐M/Mu of the RGHLS was proposed based on numerous finite element results. The results indicate that the strength design of the RGHLS with a door opening being adopted in the practical engineering application is reliable and rational with a certain amount of safety margin. At last, hysteretic response of the RGHLS is investigated according to the loading protocol specified in AISC341‐05.