Global Analysis and Structural Performance of the Tubed Mega Frame

by Han Zhang

Institution: KTH Royal Institute of Technology
Year: 2014
Keywords: Tubed Mega Frame; high-rise buildings; ETABS; wind load; design response spectrum; Engineering and Technology; Civil Engineering; Building Technologies; Teknik och teknologier; Samhällsbyggnadsteknik; Husbyggnad; Degree of Master - Infrastructure Engineering; Teknologie masterexamen - Teknisk infrastruktur; Concrete Structures; Betongbyggnad
Record ID: 1338756
Full text PDF: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-147382


The Tubed Mega Frame is a new structure concept for high-rise buildings which is developed by Tyréns. In order to study the structural performance as well as the efficiency of this new concept, a global analysis of the Tubed Mega Frame structure is performed using finite element analysis software ETABS. Besides, the lateral loads that should be applied on the structure according to different codes are also studied. From the design code study for wind loads and seismic design response spectrums, it can be seen that the calculation philosophies are different from code to code. The wind loads are approximately the same while the design response spectrums vary a lot from different codes. In the ETABS program, a 3D finite element model is built and analyzed for linear static, geometric non-linearity (P-Delta) and linear dynamic cases. The results from the analysis in the given scope show that the Tubed Mega Frame structural system is potentially feasible and has relatively high lateral stiffness and global stability. For the service limit state, the maximum story drift ratio is within the limitation of 1/400 and the maximum story acceleration is 0.011m/sec 2 which fulfill the comfort criteria.