Known Bugs & Limitations FP

[8/9/2011] Punching shear effective depth near slab edges

When a column is located less than 4*slab thickness away from a single column face the program will categorize this as a end or edge condition rather than an interior condition.  The critical perimeter is 3-sided.  If the program sees two differing slab thicknesses, one at its location and another at the edge of slab, it uses the effective depth of the slab at the edge.  This is conservative.  In other words, if a column is close enough to the slab edge (<4*h) but the column does not intersect the interface where the slab changes thickness, the program uses the lesser effective depth.  The only workaround would be to check these locations manually.  Note that if you had a larger slab thickness on the small edge slab, the program would use the lesser of effective depth.  Below is an image showing this case.  For column 1, the distance from face to edge of slab is less than 4*h, program will use effective depth of the 6″ slab since the column is not located within the 6″ slab.  For column 2, the program will use a weighted average of effective depth.  This has been reported to our development team and will be fixed for next release.

 

 

 

 

 

 

[6/30/2011] Reduced Live Load for pattern loading in ADAPT-Floor Pro (Has been fixed for Builder 2010 Build 1)

When you include skip patterns in a model and include the option to reduce live load, the program is incorrectly applying the LL reduction factor which can cause the loading to be underestimated for reduced patterns.  It is strongly recommend to not use the live load reduction option unless on one pattern is included.  The workaround is to determine the LLR factors.  You can do this by including the option to include LL reduction only to view the reduction factors for each sub-region and then deselect the option to turn this off.  After determining the factors, create a secondary live load case and apply the reduced live load to subregions.  For example, if the LL reduction factor is 0.6 for all regions and the non-reduced LL is 100 psf, you can create a new load case called “LLR” and apply 0.6*100 psf to each of the subregions.  When you create your load patterns, select this load case for the patterning.  NOTE: A fix for this bug is being implemented and will be ready for the next release (ADAPT-Builder 2010 Build 1).

[6/29/2011] Punching shear when drop caps/panels are modeled in Floor Pro

If a column capital or panel is modeled in Floor Pro, the local axes of the column and capital must be in the same direction, either positive or negative.  If they are not, when the program checks the the first critical section away from face of column, it will check the same local axis even though the side lengths don’t correlate.  For example:  Assume we have a 24″x14″ column that is rotated 90 deg.  In this case the local ‘r’ axis is in positive Global Y direction and the local ‘s’ axis is in negative Global X direction.  The  14″ dimension is in the X direction.  If a cap is modeled as 30″x40″ with zero deg. rotation angle, the local ‘r’ axis is in positive Global X direction and the ‘s’ axis is in positive Global Y direction.  The 30″ dimension is in X direction.  Graphically, this is correct, however, when the program checks punching for r-r direction of column (long column direction) it is using the same cap dimension which correlates with the column local axis.  In this case, it will use the 30″ (short side dimension of cap).  This can lead to conservative results where the cap would be ignored since the critical section would fall outside the plan dimension of the cap it is being checked against.

The workaround is to make sure the local axes of the column and cap are in the same direction, even if rotated by some angle.

[6/2/2011] Incorrect wall forces when user modifies vertical wall element division in the initialization file AND walls are modeled continuous (in length) through multiple slab regions with differing depths

If the vertical wall element division is increased to a value greater than the default of 2 in the initialization file in combination with walls running continous and connected to slabs of differing depths, the program in writing incorrect nodes to wall elements.  This results in incorrect wall forces being reported.  The line reactions at walls are correct.  The workaround is to divide the wall into multiple segments, one at each differing slab depth along its path.  An image is shown below as an example.  NOTE that ADAPT recommends to use the default wall division.

[03/28/2011] Flexural Capacity (required As) is incorrect when PT is used with a compression only area support (Has been fixed for Builder 2010 Build 1)

In ADAPT-MAT or Floor Pro, when an area spring is used and set to “Compression-only,” the flexural capacity is overly conservative when unbonded PT tendons are present.  The program will understimate the contribution of PT for the total section capacity which will lead to more required rebar than is necessary.  Their are two workarounds for this:

1. Set the PT tendons to “bonded” and modify the ultimate strength, Fpu, of the PT material property to some value less than 235 ksi.  The stress at nominal flexural strength, fps, for bonded strands is a function of the ultimate stress.  For unbonded strands, the fps,max = 235 ksi.

2. For Strength reinforcement design, run the model using a compression/tension spring.  It is recommended to review the design actions and determine if a multiplier needs to be applied to the Strength combinations so as to equate the design actions between a compression only and compression/tension model.

[03/17/2011] Distributed tendon mapping causes program to crash (Has been fixed for Builder 2010 Build 1) 

When a master tendon is mapped using the distributed mapping option, the properties of the previous mapping command are used.  If the master span selected from the previous does not exist in the tendon trying to be mapped, the program will crash.  For example, if a 5-span tendon is first mapped using Span 5 as the master span and then a 3-span tendon is mapped, the program retains Span 5 as the master span.  Since no Span 5 exists for a 3-span tendon, the program crashes.  To overcome this, you can go back to the previous tendon and set the master span to less than/equal to Span 3.

[03/16/2011] Incorrect two-way shear reinforcing spacing when drop caps/panels are used

When drop panels or drop caps are modeled the program checks punching shear inside of the drop and outside of the drop.  If ACI31-08 is the selected code AND reinforcing (i.e. studs or shear links) is required inside and outside of the drop, the program reports the spacing of reinforcement outside the face of drop incorrectly.  The current workaround is to select the ACI318-05 code for checking punching shear.  This has been reported to our development team and will be taken care of in the next update.

[01/21/2011] HELP menu non-functioning

In ADAPT-Builder Suite (including Floor Pro, MAT, SOG) when you select the HELP menu, a warning will appear showing RoboEx32.dll file missing in the program directory or C:/WINDOWS/system32.  If you select “OK” the HELP contents will still appear.  To resolve the problem, you can search and download the RoboEx32.dll file and place it in the Builder 2010 program folder.

[01/04/2011] Vector plot of cracked deflections is incorrect when more than one cracked combination is used

If more than one cracked load combination is defined, the results shown in ADViewer for vector plot values are incorrect for all cracked combinations except for the first.  The program is summing the deflection values for each additional combination.  The workaround is to subtract the values for the previous cracked combination to isolate the correct value.  An example is shown below.  This issue has been reported to our development team and will be fixed for the next release.

At a given vector, the values for 3 cracked deflection combos are shown.  The value for “Cracked 1” is correct.  For “Cracked 2,” to obtain the correct value you would take 4.5″ – 2.5″ = 2.0″.  For “Cracked 3,” to obtain the correct value you would take 10″ – (2.5″ + 4.5″) = 3″.

Cracked 1 – 2.5″

Cracked 2 – 4.5″

Cracked 3 – 10″

[11/10/2010] Allowable Stress Values for two-way shear when CSA 1994 is selected as the design code

When CSA 1994 is selected as the design code and punching shear is analyzed, the allowable stress as reported in the punching shear summary report is incorrect as is the stress ratio.  This has been reported to our development team and will be fixed for an upcoming release.

[7/22/2010] Allowable Stress Envelope in Floor Pro 2009 (Fixed in Builder 2010 Build 0)

When ACI318-08 is selected as the building code, the allowable stress envelope (gray shading) is not shown in the detailed stress diagrams for the Total Service condition.  This has been repaired for Builder 2010.

[6/8/2010] Strength capacity when tendons are stressed at alternate ends

When beam tendons are input in Floor Pro and the dead/live ends alternate, if the total quantity of tendons is an even integer, the program will only use half of the strands in determining section capacity and subsequently, reinforcement calculations.

A workaround is to use odd OR even number of tendons in any of the following conditions:

1. Dead end at left and all stressed from the right.

2. Dead end at right and all stressed from the left.

3.  All strands stressed from both ends (live/live).

[4/26/2010] Rebar Orientation in ADAPT-Builder (fixed in Builder 2010 Build 0)

Base rebar always uses the origin slab to recalculate its position in elevation. If the rebar is moved or copied to another slab, its position will be incorrect if the new slab does not match the elevation or thickness of the origin slab. Whenever the origin slab is modified (i.e. change in thickness or vertical position)  all bars that were created in this slab will be readjusted even if they are not located in this slab.  In other words, those bars copied or moved will also be repositioned.  The only way to change this and correctly position bars in other slabs is to redraw the rebar specific to that slab.   This doesn’t apply if rebar is copied from one .adm to another.

[4/23/2010] Tendon Import from ADAPT-PT 2010 to Floor Pro 2009 results in errors (Fixed for Builder 2010 Build 0)

When importing tendons from ADAPT-PT 2010 to ADAPT-Floor Pro 2009, the program will report two error messages stating the the following files are not found:

PT_TO_FP.end

FILENAME_pt.tdn

Unlike earlier versions of ADAPT-PT, the new version now compiles all intermediate and result files inside a MODELNAME subdirectory where the MODELNAME.ADB is located. This bug will be fixed for Builder 2010. As a workaround, the two files listed above need to be moved or copied to the directory where the .adb file and the subfolder is located.

[3/24/2010] Color scale values in ADViewer may not print (fixed for Builder 2010 Build 0)

When printing the graphical output in ADViewer (View Results) in Floor Pro, MAT or SOG, the values correlating to the color scale may not print.  As a workaround go to RESULT DISPLAY SETTINGS (red eyeglasses)>Color Contour – Intensity and change the font to Arial.

[3/19/2010] Floor Pro crashes when pre-prepared details are inserted in model window (fixed for Builder 2010 Build 0)

When a pre-prepared detail is selected and inserted from the “Rebar” Toolbar, the program crashes.  This is a known bug and has been reported to our development team for resolution.  A workaround is to import the detail from the FILE>Import>dwg/dxf command.  All prepared details are located in the program files directory.  They are as follows:

Adpt918 – Punching Shear Reinforcement Arrangement Shear Studs

Adpt919 – Punching Shear Reinforcement Arrangement Stirrups

ADPT931 – Typical Details of Continuous Spans

ADPT932 – Simply Supported Beam

ADPT933 – Typical Beam Section

[3/3/2010] Shear Reinforcement shown graphically in BuilderSUM (Fixed in Builder 2010 Build 0)

Shear reinforcement shown on summary sheets in BuilderSUM for individual load combinations may not match the envelope.  As a workaround, we recommend using the tabular reinforcement report.  This has been repaired for the upcoming release of Builder 2010.

[2/2/2010] Column Forces show “zero” in tabular report output

In some cases, ADAPT-Floor Pro shows “0” for axial forces in Lower Column tabular results report for columns where column height is less than twice of the beam depth and the column is bound on two sides by beams.  We are working on this issue and will have it fixed in a future release.  As a workaround, the column reactions can be viewed in tabular report format which shows the accurate values.

[1/29/10] Rebar shown on plan when DRD is inactive is incorrect (Fixed in Builder 2010 Build 0)

For Floor Pro-RC, when DRD is not active as a module, the rebar that the program reports graphically is 1-bar at each location.  This bug has been fixed  and will be included in the next release of Builder 2010.

[1/20/10] Rebar CGS outside of the slab region (Fixed in Builder 2010 Build 0)

In the case where the rebar minimum cover is specified in a way that the reinforcement is outside of the slab region, the program will show a “Out of memory” message when designing the slab. Workaround: go to Criteria -> Rebar Minimum Cover tab and decrease the top or bottom cover adequately.

 [1/20/10] Result viewer shows results in SI vs MKS units (fixed in Builder 2010 Build 0)

In the case where MKS units were selected for a model, the results are shown in SI units in the Result Viewer (FEM -> View Analysis Results). We are working on this issue and will have it fixed in a future release.

 [1/20/10] Beam stirrups are not exported in Auto CAD

At this time, beam stirrups shown in support line elevation views are not being exported to AutoCAD. We are working on this issue and will have it fixed in a future release.

Update:  To view beam stirrups in elevation, turn on all layers for the LAYER SETTINGS tab and then export as a dwg.

 [1/20/10] Loads other than DL and LL are not exported to ADAPT-PT

At this time, ADAPT-Floor Pro does not export the loads other than DL and LL to ADAPT-PT. This is a program limitation that we have prioritized to be included.

 [1/20/10] Line and point loads are not considered in Skip Patterns

At this time, ADAPT-Floor Pro does not consider point and line loads in skip patterns.  This is a current limitation of the software and will be considered for revising in a later release.  As a workaround, you can enter a patch load of unit width in lieu of a line load if you want it to be considered.

 [1/20/10] Only one “Cracked Deflection” combination can be considered at a time (fixed in Builder 2010 Build 0)

When the analysis/design option “Cracked Deflection” is considered in a Floor Pro model, this is only valid for one combination at a time for PT slabs.  Conventionally-reinforced slabs modeled in Floor Pro can have multiple cracked deflection combinations.  This is a limitation in the program.  We are working on implementing an automatic long-term deflection feature which will improve this functionality.

[1/29/10] Rebar shown on plan when DRD is inactive is incorrect (fixed for Builder 2010 Build 0)

For Floor Pro-RC, when DRD is not active as a module, the rebar that the program reports graphically is 1-bar at each location.  This bug has been fixed  and will be included in the next release of Builder 2010.

[4/23/2010] Tendon Import from ADAPT-PT is not working (has been fixed in Builder 2010 Build 0 when used with PT 2010)

While importing Tendons from ADAPT-PT it shows an error message stating some files (*.end) is not available. Please note that to facilitate file management unlike earlier versions now ADAPT-PT generates all intermediate and result files inside a MODELNAME subdirectory where the MODELNAME.ADB is located.  This bug will be fixed in next release of Builder. At present user needs to manually copy the files from subfolder to the location where the model file is located.