An Efficient Structural Analysis of Super Tall Mega Frame Buildings Using a Multi-level Condensation Method

Title
An Efficient Structural Analysis of Super Tall Mega Frame Buildings Using a Multi-level Condensation Method
Author(s)
강주원김현수[김현수]
Issue Date
201211
Publisher
ARCHITECTURAL INST JAPAN
Citation
JOURNAL OF ASIAN ARCHITECTURE AND BUILDING ENGINEERING, v.11, no.2, pp.343 - 350
Abstract
The mega frame system is considered to be suitable for skyscrapers, because it offers the structural efficiency of providing high rigidity against lateral loads, with a minimum amount of structural materials. Since the super tall mega frame building has a large number of elements and nodes, dynamic analyses of this system require significant computational resources. Therefore, a matrix condensation technique can be employed to efficiently predict the structural behavior of a mega frame structure. However, the computational resources required for the matrix condensation process of a super tall mega frame structure by a conventional condensation technique are significant, because hundreds of thousands of degrees of freedoms (DOFs) should be condensed. To overcome this difficulty, the purpose of this study is set as the development of an efficient matrix condensation method with accuracy for a mega frame structure. Mega elements, sub-mega elements and multi-level condensation techniques are developed for saving the computing resources required for matrix condensation. A special purpose computer program for the analysis of mega frame structures has been developed, and structural analyses of a 100-story mega frame structure were performed to verify the effectiveness of the proposed method. Based on the analysis results, it was confirmed that the proposed method could provide an efficient analytical model with outstanding accuracy, requiring significantly reduced computational efforts for both matrix condensation and structural analysis. Therefore, the developed computer program is expected to provide an efficient means for the preliminary design of mega frame structures.
URI
http://hdl.handle.net/YU.REPOSITORY/26987
ISSN
1346-7581
Appears in Collections:
건축학부 > 건축학부 > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE