Integrated Optimal Design of Scissor-Jack-Damper for Super Tall Buildings under Human Comfort Constraint
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Bibliographic Details
| Author(s): |
Xin Zhao
(Tongji Architectural Design (Group) Co., Ltd., Shanghai, China)
Zhuang Ma (Department of Structural Engineering, Tongji University, Shanghai, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016 | ||||
| Published in: | IABSE Congress Stockholm, 2016 | ||||
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| Page(s): | 2750-2755 | ||||
| Total no. of pages: | 6 | ||||
| Year: | 2016 | ||||
| DOI: | 10.2749/stockholm.2016.2742 | ||||
| Abstract: |
Several damping device installation configurations, such as diagonal, chevron or toggle-brace have been widely applied to offer additional damping ratio for the super tall buildings. These configurations magnify the energy dissipation capacity of damping devices, thus facilitate their applications in tall buildings. Compared with other types of configuration, the scissor-jack-damper system owns unique advantages. Firstly, similar to the toggle-brace mechanism, the scissor-jack configuration can magnify the damper displacement for a given inter-story drift. Secondly, the scissor-jack system has good compactness and can reduce the blockage on interior space. Although the scissor-jack system has lots of advantages ,the utilization of scissor-jack-damper is still in the initial stage and has been rarely applied in engineering practices, especially in the field of wind resistance design. In this paper, the authors developed an energy consumption algorithm to find out the optimal placements. Then the minimum number of the scissor-jack-damper system can be obtained under human comfort constraint. The main structure can further be optimized under stiffness constraints for wind loads when the optimal placements and minimum number of scissor-jack-damper system have been derived. A250-meter real super-tall building project is employed to illustrate the applicability and validity of the integrated optimal design method for the scissor-jack damper system. |
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| Keywords: |
tall buildings scissor-jack-damper energy consumption algorithm human comfort
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