Text Size

C02: Captain: Prestressed Beam/Slab Design

Ver. 3.0.14 2017/04/07
  • Corrected description in table on cable profiles tab being overwritten.
Ver. 3.0.13 2017/04/04
  • ACI318 - 2014 design code added.
Ver. 3.0.12 2017/03/22
  • Range check error fixed.
Ver. 3.0.11 2016/09/14
  • Rebuilt with Prokon Light style.
Ver. 3.0.10 2016/09/13
  • Range check error fixed.
Ver. 3.0.09 2016/06/13
  • Corrected range check error when viewing Sections and User Sections tabs with no sections defined.
Ver. 3.0.08 2016/05/12
  • Corrected underestimation of moment capacity for certain beams.
Ver. 3.0.07 2016/04/06
  • Corrected profile schedules for stepped long beams.
Ver. 3.0.06 2016/04/01
  • Corrected moment capacity underestimated for cable types 2 and 3.
Ver. 3.0.05 2016/03/02
  • Range check errors fixed.
Ver. 3.0.04 2016/02/01
  • Fixed check of b2 cable dimension in span - previous correction incomplete.
Ver. 3.0.03 2016/01/14
  • Fixed check of b2 cable dimension dimension in span.
Ver. 3.0.02 2016/01/06
  • Occasional range check error during start up, fixed.
Ver. 3.0.01 2015/12/09
  • Correction of licensing error introduced by maintenance release.
Ver. 3.0.00 2015/12/01
  • Major release.
  • Implemented new user interface library.
Ver. 2.6.08 2015/06/24
  • Limitation for cable dimension b2 relaxed for tapered sections.
Ver. 2.6.07 2014/08/27
  • Imperial units disabled.
Ver. 2.6.06 2014/08/26
  • Corrected missing diagrams/incorrect code selection problem.
Ver. 2.6.05 2014/07/23
  • Corrected compressive stress limits on 'Stresses at Transfer' graph for SABS0100 design code, values were too low.
Ver. 2.6.04 2014/04/09
  • Hong Kong - 2013 design code added.
Ver. 2.6.03 2014/01/23
  • Fixed error when using the Prosec link when the working folder has spaces in its name.
Ver. 2.6.02 2013/06/12
  • Modification to generation of harped tendons for cantilevers; in some cases the program chose L/R shorter than the span length.
Ver. 2.6.01 2013/02/11
  • HK 2004 design code added.
Ver. 2.6.00 2012/12/05
  • Major release.
Ver. 2.5.15 2012/10/24
  • ACI318 - 2011 design code added.
Ver. 2.5.14 2012/09/14
  • Improved design code selection dialogue box with large fonts display setting.
Ver. 2.5.13 2012/08/23
  • Demo version limited to fcu=13 and fy=190 MPa.
Ver. 2.5.12 2012/06/20
  • Adjusted compression limits on stresses at transfer graphs.
  • Cosmetic changes/corrections.
Ver. 2.5.11 2012/04/16
  • Added support for Eurocode 2-2004.
  • Added adjacent spans loaded load case to ACI 318-2005 calculations.
  • Refined punching shear calculations and plots.
Ver. 2.5.10 2012/03/01
  • Corrected calculation of upward forces for harped cables when L = length of beam.
Ver. 2.5.09 2012/02/07
  • Reading and saving of concrete code corrected.
Ver. 2.5.08 2011/08/12
  • Corrected "Send to Calcpad" function.
Ver. 2.5.07 2011/06/09
  • Descriptive identification header added to output file.
Ver. 2.5.06 2011/06/02
  • ULS end moments in slab/beam at first and last support corrected.
  • Fixed problem sending table grids from Calcsheets to CalcPad.
Ver. 2.5.05 2011/05/30
  • Tabular output now also listed at column faces if the option "Reduce moments to column face" selected.
  • Additional reinforcement added to tabular output.
Ver. 2.5.04 2011/05/17
  • Value of fy limited to 420 MPa for additional reinforcement calculations when using ACI codes.
Ver. 2.5.03 2011/05/16
  • Corrected ULS capacity calculations for ACI codes. Capacity was underestimated if multiple cable groups used.
  • Added conversion of fci when switching from cube/cylinder strengths when switching codes.
Ver. 2.5.02 2011/05/06
  • Corrected date string for design code.
Ver. 2.5.01 2010/07/22
  • Dataset now updated after table fill command.
Ver. 2.5.00 2010/07/05
  • New Release.
Ver. 2.4.16 2010/01/13
  • Corrected output graphs for imperial units.
  • Added notes on stress output graphs for ACI code.
Ver. 2.4.15 2009/01/27
  • Recompiled for compatibility with quest user configurations.
Ver. 2.4.14 2008/10/24
  • Corrected long term losses for cables shorter than the full beam length - losses were overestimated in this case.
Ver. 2.4.13 2008/09/15
  • Corrected additional rebar sometimes drawn outside beams.
  • Various smaller corrections/enhancements.
Ver. 2.4.12 2008/08/29
  • Fixed 'Error opening $Temp.c02' error.
Ver. 2.4.11 2008/08/28
  • Corrected corruption of output graphs on save.
Ver. 2.4.10 2008/08/11
  • Corrected corruption of output graphs by timed backups.
Ver. 2.4.09 2008/08/05
  • Corrected stiffness calculation of column heads.
Ver. 2.4.08 2008/07/31
  • Storing and retrieving of extra punching shear input into/from data file added.
  • Column moments corrected.
Ver. 2.4.07 2008/07/28
  • Mu capacities underestimated in certain beams near the beam ends - corrected.
Ver. 2.4.06 2008/07/23
  • Corrected shift in output graphs when switching between tabs.
Ver. 2.4.05 2008/07/09
  • Equivalent loads for change in NA on tapered sections refined - point moments placed at quarter positions.
Ver. 2.4.04 2008/06/24
  • Drawing of top reinforcement positions corrected for slabs/beams with upstands.
Ver. 2.4.03 2008/06/11
  • Correction to ends of harped tendons if R' or 'L' = 0.
  • Added equivalent point moments to either end of a varying cross section.
Ver. 2.4.02 2008/06/03
  • Corrected calculation of equivalent force: harped tendons when RH dead anchor fell on first cable inflection point in span.
Ver. 2.4.01 2008/04/01
  • Fixed display of scroll values on graphs.
Ver. 2.4.00 2008/03/25
  • Maintenance release.
Ver. 2.3.04 2007/08/31
  • Fixed problem - incomplete plots at right hand ends of force and moment diagrams.
Ver. 2.3.03 2007/05/22
  • Fixed access violation and divide by zero errors.
Ver. 2.3.02 2007/05/10
  • Fixed column stiffness modelling with column heads - columns were too stiff.
Ver. 2.3.01 2007/04/10
  • Fixed spikes in ULS moment capacity diagram.
Ver. 2.3.00 2007/03/12
  • Prokon Ver 2.3.00.
Ver. 2.2.09 2007/02/27
  • Fixed range check error.
  • Cable overhang added to cable length on schedule if the live end is at the end of the beam.
Ver. 2.2.08 2007/02/13
  • Changed profile scheduling to show cable support heights from soffit of slab.
Ver. 2.2.07 2007/02/02
  • Fixed range check error.
  • Added ACI318 - 2005.
  • Amended shear calcs for ACI318 - 1999.
Ver. 2.2.06 2007/01/08
  • Fixed range check error.
Ver. 2.2.05 2006/11/14
  • Column stiffness for column heads reduced instead of increasing total column stiffness.
Ver. 2.2.04 2006/10/25
  • Profile scheduling improved - vertical and horizontal dimensions separated.
Ver. 2.2.03 2006/06/23
  • For Britsih derived codes punching shear perimeters were drawn as circular - corrected to square.
  • (Calculations were based on square perimeters).
  • Fixed bug where harped cable end was in the same position as the cable kink in the span (denoted by Lo or Ro) - uplift force not added.
Ver. 2.2.02 2006/04/19
  • When converting to ACI code - converted to cylinder strength by dividing by 0.8 instead of multiplying.
  • ACI code value on stresses graphs should read '0.60*fci' not '0.45*fci'.
Ver. 2.2.01 2006/04/05
  • Divide by 0 error fixed when plotting loads.
  • Fixed calculation of equivalent loads on harped cables and double sloping beams segments.
  • Fixed dimensions depicting b1 and b3 on cable diagrams of harped cables.
Ver. 2.2.00 2005/12/15
  • Version 2.2 released.
Ver. 2.1.08 2005/09/21
  • Scaling of crackwidth diagram refined.
Ver. 2.1.07 2005/04/28
  • Load combinations adjusted: user to enter own weight portion.
  • Note on Load Combinations page clarified.
Ver. 2.1.06 2005/04/21
  • Secondary moments for very long beams fixed.
Ver. 2.1.05 2005/03/28
  • Help file corrected on punching shear.
  • Hong Kong and Australian codes disabled.
Ver. 2.1.04 2005/03/23
  • Punching shear:.
  • Warning added if Veff>2*Vcap.
  • Shear reinforment area were not divided by phi if Veff>1.6*Vcap.
Ver. 2.1.03 2004/12/02
  • ULS Moment corrected - on some problems the capacity lines departed the graph.
Ver. 2.1.02 2004/11/23
  • Punching shear diagrams always showed 'A' and 'B' even if column head was larger and 'C' and 'D' were to be displayed.
Ver. 2.1.01 2004/11/01
  • Range check error fixed - ocurred if 3 cable types were specified.
Ver. 2.1.00 2004/09/14
  • New version.
Ver. 2.0.06 2004/09/09
  • Plots of cable shapes for stepped beams not always correct in calcsheets.
Ver. 2.0.05 2004/05/17
  • Profile schedule vertical scale adjusted. Drawing of.
  • additional rebar mow based on section at centre.
  • Redraws of load cases done when focus changes on grid.
Ver. 2.0.04 2004/03/17
  • Reactions and secondary moments sometimes out of range on long beams.
Ver. 2.0.03 2004/01/29
  • Equivalent forces as a result of harped cables on a section with a y-offset corrected.
  • In this case the drawing of dimension b2 on the sketch is also corrected.
Ver. 2.0.02 2003/12/12
  • If column head was larger than cantilver span - access violation resulted.
Ver. 2.0.01 2003/10/27
  • Now uses Windows Padds for generating schedules.
Ver. 2.0.00 2003/08/05