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Column Spacing Variations And Secondary Beam Arrangement Affect The Performance Of Inclined Column Frame Structure

Posted on:2017-03-23Degree:MasterType:Thesis
Country:ChinaCandidate:Z Q ShaoFull Text:PDF
GTID:2272330503474839Subject:Structural engineering
Abstract/Summary:PDF Full Text Request
Inclined Column to force transmission path is clear, the force is simple, and relative to other types of conversions it has smaller mass stiffness mutation in transfer position, it can weaken the adverse effects on the structure conversion component of the overall seismic performance. Inclined Column, while having many advantages, but do not have the exact design specifications and guidelines, theoretical research is not sufficient, and less in the actual project application, and therefore become the current research focus.Flexible layout of column spacing can be used for construction to meet the diverse needs of function. Secondary beams can be used as constraint floors, reducing the thickness of floorslab and reinforcement ratio, increased interior space utilization. By selecting three different kinds of column spacing and two different kinds of secondary beam arrangement,SAP2000 is processed to structure modal analysis, response spectrum analysis, elastic analysis process, stress analysis and partial conversion Inclined Column Pushover analysis. The modal structure, deformation, lateral structural member at the transfer position and the internal force distribution of plastic hinges and the hinges order was used to explore other aspects of the change column spacing and secondary beams arranged in different ways to their seismic performance impact..By comparing the six models we found that: In the same column spacing, the structural rigidity of longitudinal secondary beams is greater than when the secondary beam arranged transversely. When the secondary beam longitudinal arrangement cycle with column space becomes larger, the transverse arrangement period and vice versa. In the case of multiple seismic action, between the transfer position at story drift mutation, the greater column spacing is,the greater the structural rigidity is mutations when the secondary beam arranged longitudinally, while the lateral stiffness of the opposite arrangement. Under the same column space, the level of the secondary beam structure arranged longitudinally at the level of the structure is less than the lateral transverse girders arranged at the lateral. Secondary beam arrangement of internal forces of the structure into smaller components. The larger column spacing, column oblique axial force increases. In rare earthquake, appeared early in the beam column hinge hinge, in line with the third level of "earthquake not fall." Inclined Column to appear at oblique column column hinges are not in line with the "strong column-weak beam" thought conducive to seismic.
Keywords/Search Tags:Inclined Column, Column spacing, Secondary beam layout mode, Pushover analysis, Seismic performance
PDF Full Text Request
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