a- Calculating V using Static Force Procedure according UBC97 section 1630.2:
Ft at Top
Floor Level
wx (KN) floor Height(m)
hx (m) wx*hxwx*hx /Σwi*hi
Fx / Floor KN
E4
Author: This sheet created by M. Abushady for comments & notes on it. Send an e-mail to [email protected]
B8
Seismic Zone Factor
B11
NEAR-SOURCE FACTOR For Zone 4 Only
B12
NEAR-SOURCE FACTOR For Zone 4 Only
B13
SEISMIC COEFFICIENT Ca
B14
SEISMIC COEFFICIENT Cv
B15
numerical coefficient representative of the inherent overstrength and global ductility capacity of lateralforce resisting systems, as set forth in Table 16-N or 16-P.
B16
numerical coefficient given in Section 1630.2.2
B17
Building Total Height
B18
Building Total Height
B19
elastic fundamental period of vibration, in seconds, of the structure in the direction under consideration
E19
Tetabs is the calculated period by Etabs, you can get it from File==> print table==> summary report. If you leave it blanked or equal zero, the V will calculated according Ta in Cell C19
B20
importance factor given in Table 16-K.
B28
The concentrated force Ft at the top
Earthquake Lateral Forces according UBC97:Project :- Project Name Designed by:- M.A.S. Rev00Building :- Tower Checked by:- M.A.S.
Ct Values0.0853 (0.035 in ft)for steel moment-resisting frames0.0731 (0.030 in ft)for RC moment-resisting frames and eccentrically braced frames0.0488 (0.020 in ft)for all other buildings
Z Seismic Zone Factor
0.40.320.40.40.440.36
0
Z Seismic Zone Factor
0.40.320.40.560.640.96
0
and eccentrically braced frames
all Etab & sap decoments are hereAccording Atkins manual http://www.4shared.com/folder/rp0IHgDL/ECP201-2008_Earthquak_Lateral_.html
Codes & international associations websites:A Beginner's Guide to Structural EngineeringInternational Organization for Standardization ISOEuroCodeAISC American Institute Of Steel ConstructionIBC CODEAWS CODE American National StandardRCSC RESEARCH COUNCIL ON STRUCTURAL CONNECTIONSASEC American Society of Civil EngineersACI American Concrete InstituteInternational Code CouncilAASHT Association of State Highway and Transportation OfficialsCalifornia Seismic Safety CommissionASME American Society of Mechanical EngineersUSACE United States Army Corps of EngineersNBC2005-CANADIAN CODE- NATIONAL RESEARCH CONCIL CANADAFEMA Federal Emergency Management AgencyNEHRP National Earthquake Hazards Reduction Program The National Institute of Building SciencesAWC American Wood CouncilAWWA CODE American Water Works AssociationANSI code American National Standards InstituteAmerican Iron and Steel InstituteSteel Deck InstituteThe Steel Joist InstituteCCFSS The Center for Cold-Formed Steel Structures AREMA CODE American Railway Engineering and Maintenance-of-Way Associationstructural engineers associationwww.seaint.orgSEAOC Structural Engineers Association of California ATC Applied Technology Council Structural Engineers Association of CaliforniaFHWA The Federal Highway AdministrationNCMA The National Concrete Masonry AssociationASME American Society of Mechanical Engineers The Council on Tall Buildings and Urban Habitat
*******Earthquakes data sites:**************************************The Consortium of Organizations for Strong-Motion Observation Systems
El Centro 1940-05-19 04:36:41 UTC PlotsCentral United States Earthquake ConsortiumEarthquake Hazards ProgramEuropean-Mediterranean Seismological CentreEuropean-Mediterranean ObservatoriesEGYPT National Research Institute of Astronomy and Geophysics (NRIAG)The Global Seismic Hazard Assessment Program (GSHAP) for PGAEgypt PGA(NOAA's National Weather Service)Pacific Tsunami Warning Center
Richter magnitude scaleOpenSHA is an open-source,Java-based platform for conducting Seismic Hazard Analysis The Earthquake Engineering Research InstitutePacific Earthquake Engineering Research Center, U.C. Berkeley PEEREarthquake Engineering Research Institute EERICenter for Engineering Strong Motion Data USGSNetwork for Earthquake Engineering Simulation (NEES) The Pacific Northwest Seismic NetworkGeotechnical Earthquake Engineering Portal
*****National Hurricane Center:*****************************************US National Hurricane Center
*****Bookstore websites:************************************************McGraw-HillJohn Wiley & Sons
*****Useful websites:************************************************xls design sheetsdownload projects dwg + models A Beginner's Guide to Structural Engineeringanything related to steel
unit convertlearning website learning websiteengineering videosA collection of online learning in all different subjects (Videos + Books)for ppt fileslearning wedsitelearning web siteunit convertconstructiondetails.us.cype.com
