Covariance proper transformation-based pseudo excitation algorithm and simplified SRSS method for the response of high-rise building subject to wind-induced multi-excitation. (1st October 2015)

• Record Type: Journal Article
• Authors: Huang, D.M.; Zhu, L.D.; Chen, W.
• Is Part Of: Engineering structures. Volume 100(2015:Oct. 01)
• Page Start: 425
• Page End: 441
• Publication Date: 2015-10-01
• Subjects: High-rise building -- Multi-group and multi-point wind excitation -- Covariance proper transformation-pseudo-excitation algorithm -- Covariance proper transformation-simplified SRSS method -- SRSS combination method -- Main contribution load modes; Structural engineering -- Periodicals; Structural analysis (Engineering) -- Periodicals; Construction, Technique de la -- Périodiques; Génie parasismique -- Périodiques; Pression du vent -- Périodiques; Earthquake engineering; Structural engineering; Wind-pressure; Periodicals; 624.105
• DOI: 10.1016/j.engstruct.2015.05.040
• Languages: English
• ISSNs: 0141-0296

Abstract

Highlights: A CPT-PEA+ SRSS method for calculating responses caused by multi-wind excitation . A CPT-SSRSS +SRSS method for calculating responses caused by multi-wind excitation . The influence parameters on responses are analyzed based on the CPT-SSRSS method . The proposed CPT-PEA and CPT-SSRSS method are more effective than the SPT-PEA. Abstract: A fast pseudo excitation algorithm and a fast simplified SRSS method based on covariance proper transformation (CPT-PEA and CPT-SSRSS, respectively) combined with SRSS methodology are proposed for use in calculating the random vibrational responses of high-rise buildings subject to multi-group and multi-point wind excitations. A 492 m building is used as an example to illustrate application of the methods. The effects of different parameters on the response are analyzed using the CPT-SSRSS method. A comparison of the computed responses with those computed using a traditional CQC approach and measurements from wind tunnel tests on an aeroelastic model demonstrate the feasibility of the proposal to combine the CPT-PEA and CPT-SSRSS techniques with the SRSS method.