Research on Mechanical Performance of an Irregular Kiewitt Dome Structure

Abstract:

Kiewitt dome structure is commonly used in spatial structures, on which many researches have been carried out. However, few researches focus on irregular dome structure. The mechanical performance of an irregular Kiewitt dome structure, cut by two vertical planes from a semi-sphere dome structure to form two openings supported by beams for architectural gates, is studied. The analysis and comparison of the dome structures with the opening or not, as well as the parametric analysis of section of the supporting beam, are conducted by SAP2000. Finally, nonlinear analysis is done by ANSYS. The results show that the existence of openings decreases the integrity of the structure and the members near the opening need to be strengthened. The stiffness of the arch beam has great effects on the vibration characteristics, the axial force distribution of the members, and the buckling modes of the structure. Proper arch beam section is recommended to meet the requirement of the structure.

• Periodical: Advanced Materials Research (Volumes 639-640)
• Pages: 171-176
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.639-640.171
• Online since: January 2013
• Authors: Qing Jun Chen, Ying Rui Chen, Guang Bin Pan, Yi Qun Zhang, Zheng Rong Jiang
• Keywords: ANSYS, Irregularity, Kiewitt Dome Structure, Nonlinearity, Opening, Sap2000

References

[1] S. Kato, I. Mutoh, M. Shomura. Collapse of semi-rigidly jointed reticulated domes with initial geometric imperfections. Journal of Constructional Steel Research, 1998, 48:145–168

DOI: 10.1016/s0143-974x(98)00199-0

[2] Y. Yang, F. Fan, S.Z. Shen. Isolation analysis of single layer Kewitte latticed spherical shell. World Earthquake Engineering. 2007,23(4):25-29 (in Chinese)

[3] X. D. Zhi, F. Fan, S.Z. Shen. Elasto-plastic instability of single-layer reticulated shells under dynamic actions. Thin-Walled Structures, 2010, 48: 837–845

DOI: 10.1016/j.tws.2010.04.005

[4] F. Zhou, S.Q. Wan. Stability analysis of single layer lattice shell. Science and Technology of Overseas Building Materials, 2007,28(3):119-122 (in Chinese)

[5] F. Liu, L.J. Li. Stability analysis of spatial latticed structures. Journal of South China University of Technology (Natural Science Edition), 2003, 31(suppl):26-29 (in Chinese)

[6] Q.J. Chen, Y. Qiu, H.B. Lin. Program of the skinning on the spatial member system structure and its practical application [J]. Spatial Structures. 2011, 17(1): 76-80 (in Chinese)

[7] H. Jing, H.J. Yang, L.J. Jin. Structural design of latticed shell of Yulin Science and Technology Museum, Building Structure, 2010, 40(12):86-88. (in Chinese)

[8] Technical specification for space frame structures(JGJ 7-2010). Bei Jing, China Building Industry publishing house. (in Chinese)