Seismic response analysis of long-span suspen-dome under multi-support excitations

Abstract

A practical suspen-dome project, Changzhou Gym roof, is adopted as an example and its transient analysis based on the multi-support excitations of the earthquake wave is carried out. Compared with the single support excitation, the position and value of the maximum stress under multi-support excitations both change and the amount of elements with obvious changes is large and more than 70% of the total. Moreover, when other terms are not changed, this influence will decrease as the span decreases, but increase as the traveling wave speed decreases. The final result indicates that the influence of the earthquake wave passage effect on the structure system is negative and cannot be ignored.

Keywords

suspen-dome / multi-support excitations / single support excitation / earthquake wave passage effect

References

[1] Mamoru K., Masaru A., Ikuo T. Design, tests and realization of “suspen-dome” system[J]. Journal of the IASS, 1999, 40(3): 179-192.

[2] Tatemichi I., Hatato T., Anma Y., et al. Vibration tests on a full-size suspen-dome structure[J]. International Journal of Space Structure, 1997, 12(4): 217-224.

[3] Chen Z., Li Yang. Parameter analysis on stability of a suspen-dome[J]. International Journal of Space Structure, 2005, 20(2): 115-124.

[4] Kang W., Chen Z., Lam H.-F., et al. Analysis and design of the general and outmost-ring stiffened suspen-dome structures[J]. Engineering Structures, 2003, 25(13): 1685-1695.

[5] Kitipornchai S., Kang W., Lam H.-F., et al. Factors affecting the design and construction of Lamella suspen-dome systems[J]. Journal of Constructional Steel Research, 2005, 61(6): 764-785.

[6] Luco J. E., Wong H. L. Response of a rigid foundation to a spatially random ground motion[J]. Earthquake Engineering and Structural Dynamics, 1986, 14(6): 891-908.

[7] Harichandran R. S., Vanmarcke E. H. Stochastic variation of earthquake ground motion in space and time[J]. Journal of Engineering Mechanics ASCE, 1986, 112(2): 154-174.

[8] Loh C. H., Yeh Y. T. Spatial variation and stochastic modelling of seismic differential ground movement[J]. Earthquake Engineering and Structural Dynamics, 1988, 16(4): 583-596.

[9] Hao H., Oliveira C. S., Penzien J. Multiple-station ground motion processing and simulation based on SMART-1 array data[J]. Nuclear Engineering Design, 1989, 111(3): 293-310.

[10] Kiureghian A. D., Neuenhofer A. Response spectrum method for multi-support seismic excitations[J]. Earthquake Engineering and Structural Dynamics, 1992, 21(8): 713-740.

[11] Heredia-Zavoni E., Vanmarcke E. H. Seismic randomvibration analysis of multi-support structural systems[J]. Journal of Engineering Mechanics ASCE, 1994, 120(5): 1107-1128.

[12] Lin J. H., Zhang Y. H., Li Q. S., et al. Seismic spatial effects for long-span bridges, using the pseudo excitation method[J]. Engineering Structures, 2004, 26(9): 1207-1216.

[13] Zerva A. Response of multi-span beams to spatially incoherent seismic ground motions[J]. Earthquake Engineering and Structural Dynamics, 1990, 19(6): 819-832.

[14] Perotti F. Structural response to non-stationary multiplesupport random excitation[J]. Earthquake Engineering and Structural Dynamics, 1990, 19(4): 513-527.

[15] Loh C. H., Lee S. Z. Aseismic displacement analysis of multi-supported bridge to multiple excitations[J]. Soil Dynamics and Earthquake Engineering, 1990, 9(1): 25-33.

[16] Hao H. Arch responses to correlated multiple excitations[ J] Earthquake Engineering and Structural Dynamics, 1993, 22(5): 389-404.

[17] Su L., Dong S., Kato Shiro. Seismic design for steel trussed arch to multi-support excitations[J]. Journal of Constructional Steel Research, 2007, 63(6): 725-734.

[18] Kato S., Su L. Effects of surface motion difference at footings on the earthquake responses of large-span gable structures[ J] Steel Construction Engineering JSSC, 2002, 36(9): 113-128.

[19] Kato S., Nakazawa S., Su L. Effects of wave passage and local site on seismic responses of a large-span reticular dome structure[J]. Steel Construction Engineering JSSC, 2003, 37(10): 91-106.

[20] Li J., Li Guoqiang. Introduction to the Seismic Engineering[M]. 1994, Beijing: Seismological Press.

[21] Luo Y., Wang Rong. Study on dynamic characteristics and behavior of cable dome subjected to multi-dimensional and multi-point seismic excitations[J]. Journal of Zhejiang University, 2005, 39(1): 39-45.