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C01: Continuous Beam/Slab Design

Ver. 3.0.17 2017/01/06
  • Value of fy not read correctly form saved file since previous revision.
Ver. 3.0.16 2016/12/07
  • Restictions on cover relaxed.
Ver. 3.0.15 2016/12/02
  • Added cot(theta) shear angle to parameter grid for Eurocode 2.
Ver. 3.0.14 2016/11/24
  • Additional shear steel graph taking into account the entered longitudinal bars, now plotted.
Ver. 3.0.13 2016/10/17
  • Occasional exception in the case of a printer error now intercepted.
Ver. 3.0.12 2016/10/04
  • EC 2: Areas near midspans now indicate where no shear reinforcement is required.
Ver. 3.0.11 2016/08/26
  • Max number of beam elements that can be imported from Frame increased to 300 000.
Ver. 3.0.10 2016/07/22
  • EC 2: Shear enhancement close to supports added.
Ver. 3.0.09 2016/07/07
  • Range check error when starting with a new beam, fixed.
Ver. 3.0.08 2016/07/04
  • AS3600: Shear enhancement on supports, fixed.
  • Occasional exception when clicking on blank pictures, fixed.
  • Intervals for calculating results decreased from 0.25m to 0.1m.
Ver. 3.0.07 2016/07/04
  • AS 3600: Shear capacity fixed.
Ver. 3.0.06 2016/04/22
  • Orientation of sketches fixed.
Ver. 3.0.05 2016/04/12
  • If CB started from Frame design link, the frame output is now saved with the beam data.
Ver. 3.0.04 2016/04/01
  • Optimized redistribution refined.
Ver. 3.0.03 2016/03/02
  • Design link to Continuous Beam supported a max of 100 point loads on beams. This has now been increased to 1000.
Ver. 3.0.02 2016/01/05
  • "Running in demo mode" problem 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. 2.6.18 2015/06/10
  • Added support for New Zealand concrete design code NZS 3101 - 2006.
Ver. 2.6.17 2015/05/27
  • Button icons fixed.
Ver. 2.6.16 2015/05/12
  • Conservative error when generating bottom bars (introduced in ver 2.6.14), fixed.
Ver. 2.6.15 2015/04/23
  • Support added for partial UDL's Frame Analysis design links.
Ver. 2.6.14 2015/03/16
  • AS3600: Areas of bar sizes suggested adapted for nominal values as used in Australian codes.
Ver. 2.6.13 2015/02/17
  • Eurocode 2 - 2004: Allowance for partial fixity added.
Ver. 2.6.12 2015/02/12
  • Eurocode 2 - 2004: Shear resistance for members with inclined shear reinforcement, fixed.
Ver. 2.6.11 2015/02/06
  • HK Concrete - 2013: Elasticity modulus for concrete revised.
Ver. 2.6.10 2014/09/15
  • Occasional clipping of graphs on calcsheet fixed.
  • Size of Frame Analysis files supported doubled to 200 000 elements.
Ver. 2.6.09 2014/07/23
  • Updated symbol for concrete cube or cylinder strength to align with selected design code: fcu, fc' or fck.
  • ACI318-2005: Calculation of shear reinforcement fixed. The value of shear capacity Vc was underestimated in some cases of very low ULS shear force.
Ver. 2.6.08 2014/07/17
  • ACI and CSA codes: Calculation of shear enhancement close to supports fixed.
Ver. 2.6.07 2014/07/16
  • ACI318 - 2011: Shear steel diagrams fixed.
Ver. 2.6.06 2014/05/20
  • Detailing of flat slabs: Fixed occasional discrepancy between width of column strip and width of section.
Ver. 2.6.05 2014/05/09
  • Design link from Frame Analysis enhanced to support op to 100 000 nodes and elements.
Ver. 2.6.04 2014/05/05
  • Concrete elasticity modulus now also fixed in output file.
Ver. 2.6.03 2014/04/29
  • Concrete elasticity modulus fixed for HK Concrete - 2013 code.
Ver. 2.6.02 2014/04/07
  • Hong Kong - 2013 design code added.
Ver. 2.6.01 2013/01/29
  • Range check error when typing in new rebars, fixed.
Ver. 2.6.00 2012/12/05
  • Maintenance release.
Ver. 2.5.14 2012/09/14
  • Code selection dialog were not fully visible with large fonts selection.
Ver. 2.5.13 2012/08/20
  • Column for load descriptions added to Loads table.
Ver. 2.5.12 2011/06/10
  • Selection of column strip mode occasionally disrupted dispplay of sections on Sections input tab.
Ver. 2.5.11 2011/05/26
  • Design link with Frame updated to support new six-digit node format.
Ver. 2.5.10 2011/05/09
  • A tapered section crossing midspan of a beam, caused the interpolated section at midspan to appear on the sections page. This has now been corrected.
Ver. 2.5.09 2011/04/12
  • Exception after entering a 0 span number in the loads table, fixed.
Ver. 2.5.08 2011/02/11
  • When detailing slabs, the width of individual column strips can now be set (e.g. when designing slab with different span lengths in two directions).
  • Frame Analysis design link: For beams offset with rigid links (e.g. downstand beams), added the couple due to axial force in the beam to the design bending moment envelope.
Ver. 2.5.07 2010/10/18
  • Occasional file access error fixed.
Ver. 2.5.06 2010/10/13
  • Target setting added to Detailing Parameters for the generation of AutoPadds friendly schedules.
Ver. 2.5.05 2010/08/23
  • Problems with point loads within sloping UDLs, fixed.
Ver. 2.5.04 2010/08/16
  • Occasional file error 103 fixed.
Ver. 2.5.03 2010/08/11
  • Support added for AS3600 - 2009.
Ver. 2.5.02 2010/08/10
  • Bending schedule now makes use of high yield and mild steel bar designations defined using Prokon Options in Calcpad.
Ver. 2.5.01 2010/07/26
  • Vt and Vb labels on scrolling display of shear diagram were inverted.
Ver. 2.5.00 2010/07/05
  • New Release.
Ver. 2.4.20 2010/03/10
  • ACI 318 code: Calculation of shear reinforcement for very short beams (L<2d) refined.
Ver. 2.4.19 2010/02/26
  • "View" page now disabled after click "File / New" to prevent exceptions.
Ver. 2.4.18 2009/12/08
  • Size of graphs and fonts on calcsheets enlarged to improve readability.
Ver. 2.4.17 2009/10/22
  • Check added to verify that span numbers are within range when generating a bending schedule.
Ver. 2.4.16 2009/10/20
  • Problems with 3D display of reinforcing, fixed.
Ver. 2.4.15 2009/09/29
  • Problem with loading old files, fixed.
Ver. 2.4.14 2009/09/22
  • Occasional problem with design link from Frame, Fixed.
Ver. 2.4.13 2009/05/27
  • Button for detailed steel area calculations added to steel diagrams page.
Ver. 2.4.12 2009/04/07
  • Checks for adequate reinforcement added to Bending Schedule page.
Ver. 2.4.11 2009/03/17
  • Range check error when trying to detail bars longer then 65m, fixed.
Ver. 2.4.10 2009/01/27
  • Recompiled for compatibility with quest user configurations.
Ver. 2.4.09 2008/12/12
  • Diameter of middle bars now calculated according to latest version of SANS10100 (2000) code.
Ver. 2.4.08 2008/11/13
  • Shear enhancement is now ignored at ends op cantilever spans.
Ver. 2.4.07 2008/09/18
  • Overlapping buttons on Moment and Steel diagrams tabs, fixed.
Ver. 2.4.06 2008/09/04
  • Generation of shear reinforcement refined.
Ver. 2.4.05 2008/07/24
  • Maintenance release.
Ver. 2.4.04 2008/07/15
  • Maximum number of lines in Stirrups table now automatically increased if required.
Ver. 2.4.03 2008/05/29
  • Maximum number of rebars increased.
Ver. 2.4.02 2008/05/06
  • Revised HK2004 code (PNAP 296) now supported.
Ver. 2.4.01 2008/04/16
  • Scaling of reinforcing diagram improved for short deep beams.
Ver. 2.4.00 2008/04/01
  • Displaying of graph values fixed.
Ver. 2.3.24 2008/03/19
  • -.
Ver. 2.3.23 2008/03/17
  • Shear force problem when using ACI load combinations, fixed.
Ver. 2.3.22 2008/02/29
  • Shear reinforcement diagram fixed.
Ver. 2.3.21 2007/01/16
  • Problem with combined stirrups introduced in version 2.3.19, fixed.
Ver. 2.3.20 2007/12/06
  • Quantities section added to bottom of output file.
Ver. 2.3.19 2007/11/21
  • Shear reinforcing diagram now correctly adjust steel area for combined mild and high tensile steel stirrups.
Ver. 2.3.18 2007/10/15
  • Steel diagrams now updated if number of bars adjusted in "Main Reinforcing" table.
Ver. 2.3.17 2007/10/11
  • Number of stirrups shown in 3D view fixed.
Ver. 2.3.16 2007/10/05
  • Memory problems when generating 3D view of reinforcing, fixed.
Ver. 2.3.15 2007/10/03
  • Scale of bar diameters corrected on 3D view of reinforcing.
Ver. 2.3.14 2007/10/01
  • Main reinforcing tab : Bar and steel area diagrams now aligned.
  • Graphical editing of sections added.
  • 3D view of reinforcing added.
Ver. 2.3.13 2007/08/31
  • Option added for saving and loading default bending schedule parameters.
Ver. 2.3.12 2007/08/30
  • New revisions to Hong Kong code:.
  • Elasitcity modules for concrete adjusted to 3.46*sqrt(fcu/1.15)+3.21.
Ver. 2.3.11 2007/08/28
  • % Redistribution was not taken in account for limiting neutral axis depth when calculatiing of area of steel .
Ver. 2.3.10 2007/08/15
  • Reinforcing / Stirrups tab: High yield and mild steel stirrups can now be mixed.
Ver. 2.3.09 2007/06/22
  • Main Reinforcing tab: Updating of steel diagram fixed.
Ver. 2.3.08 2007/06/20
  • Maximum number of spans increased to 50.
  • Main Reinforcing tab: Highlighting of focused bar fixed.
  • Reinforcing diagrams on calcsheet now updated to show column or middle strip steel only if applicable.
Ver. 2.3.07 2007/06/14
  • Section scale on bending schedule was corrupt if top offset specified for all sections.
Ver. 2.3.06 2007/06/12
  • Programmed failed to terminate properly on some computers.
Ver. 2.3.05 2007/06/04
  • ACI 318 code: Check added to prevent occasional exception when generating reinforcing.
Ver. 2.3.04 2007/05/30
  • Error message added when dimension b <0 (Loads table).
Ver. 2.3.03 2007/05/13
  • Check added for illegal span numbers on main reinforcing tab.
Ver. 2.3.02 2007/04/12
  • ACI code: Fcu symbol changed to Fc.
  • Calculation of elasticity modulus adapted according to code.
Ver. 2.3.01 2007/03/30
  • Maximum number of section properties increased from 40 to 200.
Ver. 2.3.00 2007/03/12
  • Prokon Ver 2.3.00.
Ver. 2.2.29 2007/03/07
  • Problem with generation of bending schedules fixed.
Ver. 2.2.28 2007/02/14
  • Calculation of long tem deflections using entered reinforcing, now less sensitive.
  • for bars not extending right up to beam ends.
Ver. 2.2.27 2007/02/08
  • Support added for ACI 318 - 2005.
Ver. 2.2.26 2007/01/27
  • Moment and shear diagram tabsheet added for design link from Frame.
Ver. 2.2.25 2007/01/24
  • Design link from Frame occasionally reversed beams.
Ver. 2.2.24 2006/12/05
  • Generated shear reinfocrement sometimes one link short on right hand ends of spans.
Ver. 2.2.23 2006/11/16
  • Diameter of middle bars was limited by minimum diameter of bottom bars.
Ver. 2.2.22 2006/10/11
  • Detailing parameter added for specifying diameter of middle bars.
Ver. 2.2.21 2006/10/02
  • Error message added for invalid load cases.
Ver. 2.2.20 2006/09/20
  • Minor refinement to generation of reinforcement.
Ver. 2.2.19 2006/08/25
  • Improvements in positioning of rebar captions on bending schedule.
Ver. 2.2.18 2006/08/21
  • Minor refinements to generation of bending schedule.
Ver. 2.2.17 2006/08/17
  • Stirrups situated in top or bottom flanges now supported.
  • Graphical editing of shear reinforcing now added.
Ver. 2.2.16 2006/08/15
  • Support for BS8666 shape codes added.
  • Elasticity modulus for Hong Code now calculated separately.
Ver. 2.2.15 2006/08/09
  • Buttons added for adding or deleting bars on the Main Reinforcing tab.
Ver. 2.2.14 2006/07/31
  • Genereation of bending schedule refined.
Ver. 2.2.13 2006/07/18
  • Steel areas fixed for HK Concrete-2004.
Ver. 2.2.12 2006/06/18
  • Generated rebars can now optionally be numbered from left to right.
  • Position and length of rebars can now be adjusted with the mouse.
  • Bars can be deleted by first clicking on them and then pressing the delete key.
Ver. 2.2.11 2006/03/31
  • Occasional runtime error when generating reinforcement, fixed.
Ver. 2.2.10 2006/03/17
  • Provision made for negative a-dimension when entering UDL's.
Ver. 2.2.09 2006/03/07
  • Design link from Frame refined to support spaces in section names.
Ver. 2.2.08 2006/03/02
  • Stirrup and shear steel tables now cleared when generating reinforcing for slabs.
Ver. 2.2.07 2006/02/25
  • Program recompiled to avoid the occasional "Text parameters not set" error message.
Ver. 2.2.06 2006/02/09
  • SABS 0100 : Pattern loading: Minimum loads on spans increased from 1.0*DL to 1.2*DL (See 4.3.2.1.2).
  • Note that SABS 0100 differs from BS8110 in this regard.
Ver. 2.2.05 2006/02/09
  • Minor adjustment to pen colour when generating a bending schedule.
Ver. 2.2.04 2006/01/31
  • Design link from Frame now accommodates second order analyses also.
Ver. 2.2.03 2006/01/27
  • HK concrete-2004 code (5.1.3.2): Check added for adjacent spans loaded.
  • Improvements to user verification system.
Ver. 2.2.02 2006/01/18
  • Generation of multiple bending schedules fixed.
Ver. 2.2.01 2006/01/10
  • Filter added to check for illegal support numbers.
Ver. 2.2.00 2006/01/03
  • Maintenance release.
Ver. 2.1.23 2005/11/23
  • Maintenance release.
Ver. 2.1.22 2005/11/17
  • Design link from Frame updated to assume 300mm support widths.
Ver. 2.1.21 2005/11/15
  • Load factors now saved with data file.
Ver. 2.1.20 2005/11/08
  • Minor improvements to generation of bending schedule.
Ver. 2.1.19 2005/10/20
  • Concrete design code now saved with input file.
Ver. 2.1.18 2005/10/05
  • Logon problem experienced on some PC's, fixed.
Ver. 2.1.17 2005/09/14
  • Option added to generate bending schedules at a fixed scale.
Ver. 2.1.16 2005/09/01
  • Write access on \prokon\bin folder no longer required.
Ver. 2.1.15 2005/08/17
  • Parameters page now accessible when doing a designlink from Frame.
Ver. 2.1.14 2005/06/07
  • Problems with analysing beams with more than 4 spans for the Australian code, fixed.
Ver. 2.1.13 2005/06/02
  • Minor adjustment to nominal shear steel to accommodate differences between SA and British codes(affects SABS 0100 only).
Ver. 2.1.12 2005/05/23
  • Deflection diagram fixed (Version 2.1.11 problem only).
Ver. 2.1.11 2005/05/18
  • Generation of reinforcement improved.
Ver. 2.1.10 2005/04/18
  • Bending schedule preview enhanced.
Ver. 2.1.09 2005/04/06
  • Design link with Frame improved to support 2nd order analyses.
Ver. 2.1.08 2005/03/15
  • Recompiled for Padds compatibility.
Ver. 2.1.07 2005/02/25
  • Maintenance release.
Ver. 2.1.06 2005/02/23
  • Problems with logon status fixed.
Ver. 2.1.05 2005/02/18
  • Bendin Schedule: Option added for generating actual elevation of beam.
Ver. 2.1.04 2005/02/14
  • Australian (AS3600) and Hong Kong (2004) codes added.
Ver. 2.1.03 2004/10/21
  • Design link form Frame program refined.
Ver. 2.1.02 2004/10/15
  • Text height for generated bending schedule can now be set.
Ver. 2.1.01 2004/10/04
  • Design link form Frame program refined.
Ver. 2.1.00 2004/09/14
  • Maintenance release.
Ver. 2.0.11 2004/09/08
  • Maintenance release.
Ver. 2.0.10 2004/08/31
  • Generation of reinforcement for single span beam with compression steel fixed.
Ver. 2.0.09 2004/08/23
  • Generation of top steel for slabs rectified.
Ver. 2.0.08 2004/07/23
  • Problem with single span beams (new codes only), fixed.
Ver. 2.0.07 2004/07/20
  • ACI, Canadian, IS and Euro codes now supported.
Ver. 2.0.06 2004/04/28
  • Generation of top bars for short spans improved.
Ver. 2.0.05 2004/02/20
  • Bars with substantial overhang over left support were not drawn.
Ver. 2.0.04 2003/11/07
  • Range check error when generating reinforcing for very narrow beams, fixed.
  • Ctrl+left or right arrow now provides smooth scrolling on diagrams.
Ver. 2.0.03 2003/09/17
  • Problem when working folder name contains spaces, fixed.
Ver. 2.0.02 2003/09/04
  • Minor correction in generation of bending schedule.
Ver. 2.0.01 2003/08/28
  • New Windows version of Padds used for generating bending schedules.
Ver. 2.0.00 2003/08/05