EVALUATION OF SEISMIC DEFO RMATION DEMANDS USING NON- LINEAR PROCEDURES IN MULT ISTOR
Current time: 04-17-2021, 12:39 AM
Users browsing this thread: 1 Guest(s)
Author: TAFATNEB
Last Post: TAFATNEB
Replies 0
Views 1953

EVALUATION OF SEISMIC DEFO RMATION DEMANDS USING NON- LINEAR PROCEDURES IN MULT ISTOR
#1
EVALUATION OF SEISMIC DEFORMATION DEMANDS USING NON- LINEAR PROCEDURES IN MULTISTORY STEEL AND CONCRETE MOMENT FRAMES

Author: Sashi K. Kunnath and Erol Kalkan Department of Civil and Environmental Engineering University of California at Davis | Size: 271 KB | Format: PDF | Quality: Unspecified | Publisher: SET Journal of Earthquake Technology, Paper No. 445, Vol. 41, No. 1, March 2004, pp. 159-181 | Year: 2004 | pages: 23

[Image: 87979508991359183590.png]


[Image: info.png]

A key component of performance-based seismic evaluation is the estimation of seismic demands. In FEMA-356 (FEMA, 2000b), which is now recognized as the model for future performance-based seismic codes in the US, these demands are evaluated at the component level in terms of ductility demands or plastic rotations when using non-linear procedures. Since acceptance criteria for various performance objectives are assessed in terms of local component demands, it is essential that a rational basis be established for determining such demands. Of the non-linear procedures advocated in FEMA-356,
pushover procedures are becoming increasingly popular in engineering practice. However, there are still several unresolved issues in identifying appropriate lateral load patterns to be used in a pushover procedure. This paper investigates the correlation between demand estimates for various lateral load patterns used in non-linear static analysis. It also examines the rationale for using component demands over story and system demands. Results reported in the paper are based on a comprehensive set of pushover and non-linear time-history analyses carried out on eight- and twelve-story steel and concrete moment frames. Findings from this study point to inconsistencies in the demands predicted by different
lateral load patterns when using pushover analysis and also highlight some issues in the current understanding of local demand estimates using FEMA-based procedures.


[Image: mirror.png]
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:

http://forum.civilea.com/thread-27464.html
***************************************



[-] The following 8 users say Thank You to TAFATNEB for this post:
  • vardan, rezart, gulilero, zrilek, jcbv, slowet, ting tsai huang, malc
Reply


Possibly Related Threads…
Thread Author Replies Views Last Post
Non-Linear Seismic Response of Base-Isolated Frame Structures Using Rubber Bearings TAFATNEB 0 2,144 12-26-2014, 10:49 PM
Last Post: TAFATNEB
Seismic Demands on Steel Braced Frame Buildings with Buckling-Restrained Braces TAFATNEB 0 2,659 10-08-2014, 03:06 PM
Last Post: TAFATNEB
Behavior of high frequency modal responses in non linear seismic  analysis  TAFATNEB 0 1,444 04-17-2014, 10:57 AM
Last Post: TAFATNEB
Non-linear time history analysis of tall structure for seismic load using damper TAFATNEB 0 1,492 04-17-2014, 10:48 AM
Last Post: TAFATNEB
NON LINEAR SEISMIC ANALYSIS OF ANCIENT BUILDINGS Structural Characterization for Succ TAFATNEB 0 1,747 04-17-2014, 10:22 AM
Last Post: TAFATNEB



Users browsing this thread: 1 Guest(s)