C11: Rectangular Column Design

2.5.02 (2010/08/25):

• Corrected problem with long load case names.

2.5.01 (2010/08/13):

• Added AS3600 - 2009 (Australian) code.
• Mild steel bar designation aligned with global preferences.

2.5.00 (2010/07/05):

• New Release.

2.4.15 (2009/12/03):

• Corrected number of links on bending schedule for type 4 links.

2.4.14 (2009/07/10):

• Minor bug fixes: Eurocode, ACI code and detailed output.
• Removed Eurocode 2 - 1992.

2.4.13 (2009/07/07):

• Added Eurocode 2 - 2004.
• Added detailed equations in output.
• Corrected biaxial momet calculation in IS456 code.

2.4.12 (2009/03/27):

• Corrected column moment output in calcsheets for British and derived codes - did not always tally with graphical output.

2.4.11 (2009/02/20):

• Range check error fixed.

2.4.10 (2009/02/19):

• Tie link bar designation changed from alway.

2.4.09 (2009/02/04):

• Range check error fixed.

2.4.08 (2009/01/27):

• Recompiled for compatibility with user configurations.

2.4.07 (2009/01/19):

• Range check error fixed.

2.4.06 (2008/11/24):

• Correction for additional moments at centre of column in case where column pinned at both ends: AS3600 and ACI318 codes.

2.4.05 (2008/09/22):

• Corrected output for phi*Mub in calcsheet for AS3600 code.

2.4.04 (2008/09/08):

• Changed Calcsheet output of '0.95fy' in BS8110 - 1997 code to read '0.87fy' when fy>=500 MPa. Calculations were correct.

2.4.03 (2008/06/13):

• Corrected slenderness moments for Eurocode 2.

2.4.02 (2008/05/06):

• Fixed bar marks of middle stirrups in generated bending schedule.

2.4.01 (2008/04/01):

• Fixed display of scroll values on graphs.

2.4.00 (2008/03/25):

• Maintenance release

2.3.08 (2007/10/15):

• Added 3D view on bending schedule tab.

2.3.07 (2007/10/01):

• Changed level output on bending schedule to 3 decimal places if levels are in m.

2.3.06 (2007/08/31):

• Corrected graphs for maximum axial load capacity - was underestimated.

2.3.05 (2007/07/18):

• Corrected selection of critical section if reinforcement is nominal at top middle and bottom of column.

2.3.04 (2007/05/14):

• Program now designs for minimum moment about each axis separately.

2.3.03 (2007/04/11):

• Resized output table in calcsheet to show larger reinforcement values.

2.3.02 (2007/04/11):

• Mimimum moment only applied about weakest axis if there are no other moments.

2.3.01 (2007/04/10):

• Generation of bending schedules update to new Padds format.

2.3.00 (2007/03/12):

• Prokon Ver 2.3.00.

2.2.10 (2007/02/06):

• Added ACI 318 - 2005 code.

2.2.09 (2006/11/30):

• Corrected picture on B.S. page. Bar indication for vertical bars omitted bars if column not continuous and no X-X middle bars present.

2.2.08 (2006/10/10):

• Fixed error on calcsheets - final design axis graph always given as about X-X axis.

2.2.07 (2006/07/31):

• Fixed bending schedule with link type 2.

2.2.06 (2006/05/21):

• Fixed bug where to many stirrups were generated in schedule if more than one internal stirrup in X-ditrection in column.

2.2.05 (2006/04/20):

• Fixed problem where all load cases were added together as one.

2.2.04 (2006/04/10):

• Fixed problem where negative reinforcement is displayed with in second direction - occurred with low axial loads.
• Improved generation of default reinforcement.

2.2.03 (2006/03/30):

• Fixed divide by 0 error.

2.2.02 (2006/03/27):

• Minimum moment applied about both axes for calculation of reinforcement.
• Can now save bending schedule data with input file.

2.2.01 (2006/02/18):

• Maximum number of load cases increased from 50 to 200.

2.2.00 (2005/12/15):

• Maintenance release

2.1.08 (2005/06/30):

• Calculations for slenderness moments refined for ACI, Canadian and Australian codes.

2.1.07 (2005/03/08):

• Australian code added.
• Biaxial moment design corrected (design moment M' not calculated correctly in version 2.1.06).

2.1.06 (2005/03/15):

• Access violation when generating bending schedule fixed.

2.1.05 (2005/02/03):

• Design for slenderness in ACI code adjusted.
• Concrete Society report TR49 provisions for high strength concrete incorporated.
• Hong Kong Concrete Code - 2004 added.

2.1.04 (2004/11/25):

• Minor adjustments to Indian code provisions.

2.1.03 (2004/11/11):

• Nominal steel for Indian code set to 0.8% (Not 0.4%).

2.1.02 (2004/11/10):

• Indian code added.

2.1.01 (2004/10/05):

• Can limit maximum size of bars using preferences setting in Calcpad.

2.1.00 (2004/09/14):

• New version.

2.0.02 (2003/12/12):

• Column moments were only redrawn when scrolling.
• load input if load cases were numerical.

2.0.01 (1970/01/01):

• Now uses Windows Padds for generating schedules.
• Full schedule is now displayed.

2.0.00 (2003/05/08):

• New system library implemented. ' ID=.