Amirkabir University of Technology Amirkabir Journal of Civil Engineering 2588-297X 48 1 2016 05 21 Analytical Assessment of Pros and Cons for Prevalent Tall Building System in Comparison with Tube System Using ASCE7-05 Wind Load Specifications Analytical Assessment of Pros and Cons for Prevalent Tall Building System in Comparison with Tube System Using ASCE7-05 Wind Load Specifications 87 100 644 10.22060/ceej.2016.644 FA Navid Siahpolo Ph.D Candidate of Earthquake Engineering, Semnan University, Semnan, Iran Ali Kheyroddin Professor of Structure Engineering Department, Semnan University, Semnan, Iran 0000-0001-7802-2013 Mohsen Gerami Associate Professor of Earthquake Engineering Department, Semnan University, Semnan, Iran 0000-0002-4113-932X Journal Article 2012 12 26 Tall buildings classify as interior and exterior systems regarding to structural system. Important forms of exterior systems are tube, tube-in-tube w/o interior core, tube-in-tube with outrigger, braced tube and bundled tube. In order to evaluate pros and cons of each system, full 3D model implemented by using SAP2000 and seismic performance assessment defined as a major aim of this research. Shear absorption, story drift, inter story drift, shear lag factor (SLF), fundamental period and maximum along-wind displacement and acceleration are evaluated parameters. <br />The qualitative results showed that using aforementioned led to improve seismic response of building compared with tube system. However, a considerable effect on response reduction observed by using braced system. On the other hand, variation rate of SLF on columns located at tension flange was much uniform. In addition, SLF became one on the upper floors in all cases. Finally, by using braced tube, and maximum along-wind displacement and acceleration calculated with ASCE705 meet the comfort criterion of occupants. Tall buildings classify as interior and exterior systems regarding to structural system. Important forms of exterior systems are tube, tube-in-tube w/o interior core, tube-in-tube with outrigger, braced tube and bundled tube. In order to evaluate pros and cons of each system, full 3D model implemented by using SAP2000 and seismic performance assessment defined as a major aim of this research. Shear absorption, story drift, inter story drift, shear lag factor (SLF), fundamental period and maximum along-wind displacement and acceleration are evaluated parameters. <br />The qualitative results showed that using aforementioned led to improve seismic response of building compared with tube system. However, a considerable effect on response reduction observed by using braced system. On the other hand, variation rate of SLF on columns located at tension flange was much uniform. In addition, SLF became one on the upper floors in all cases. Finally, by using braced tube, and maximum along-wind displacement and acceleration calculated with ASCE705 meet the comfort criterion of occupants. https://ceej.aut.ac.ir/article_644_8c7bbbba95c1025975e548cee86dfadc.pdf