Analysis and Design for Large Span Corridor Structures between Twin-Tower Tall Buildings under Vertical Seismic Excitation
Abstract：To investigate vertical seismic responses of space corridors built between twin-connected-tower tall buildings, first time history analysis is applied with the input of vertical earthquake records, and the examples have varying tower heights and truss spans. Secondly, this type of structure is simplified as a 2-DOF system and analyzed in frequency domain, and the dynamic characteristics of its vertical seismic response are studied. The gravity coefficient method adopted by current China code for seismic design of buildings may not lead to safe results for the studied corridors. A practical design formula considering interaction between towers and corridors is suggested. A project example with truss at the top of a twin-tower super-tall building is analyzed with the suggested method and the time history method, and the results coincide well.
Keywords：Twin towerTall buildingSpace corridorVertical seismic excitationFrequency domainTime history analysis
Publication Date：2008-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：12( 63-74 )