Details of changes made in ...
Release 4.40j, 30 Nov 2004
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Key changes:
- In 4.40i we inadvertently changed the beam span
validation check from >=0 to >0 thus stopping
the entry of 0 (true cantilever) - fixed.
- The presentation of calculations for true
cantilever members have been revised slightly (e.g.
length now described as 'Length', not 'Span')
- For beams extended as cantilevers using total
load entry, the actual maximum deflection on the span
is now calculated: previously the mid-span deflection
was calculated. The latter is still calculated for
Dead+Live load entry so that both LL and total load
deflections are being calculated at the same
point
- We have reduced the number of decimal places
shown on printouts in a number of cases so that
spurious accuracy is not implied.
- The load colour selected in the Beam Diagram
Options dialog was not visible on XP systems -
fixed
- When an OLE page was printed from within the
Print Project option the omit page heading option was
ignored - fixed
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Release 4.40i, 16 Nov 2004
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- The beam load, steel column and timber post load
edit dialogs now display a hint panel below the load
entry table which shows the input required in the
currently selected field. This should be of
particular help to new and occasional users.
- When using total load entry the steel column
dead/live percentages were lost on save and reload -
fixed
- With a lightly loaded timber beam, when you asked
the program to calculate the required width you could
get an answer of ? ? - fixed.
- The Beam, Span and Bring forward reaction, load
position fields now have spin buttons.
- If you try and save a project and the existing
file is read-only a message to this effect is now
displayed, giving you the option of overwriting the
existing file. Previously you just got a 'Could not
create backup' message - the non-obvious workaround
was just to save your project under another
name.
- The Project Manager item description now includes
the beam span or column or post length.
- The Project Manager and Toolbar fonts can now be
changed using the Configuration, Screen and Printer
fonts option
- The Catalogue Project Files option now
immediately displays a list of files with 'Open'
buttons next to each file name. Press the 'Change'
button to change the file mask.
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Release 4.40h, 26 July 2004
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- If you selected 'User defined' for a steel beam
bearing any text entered was lost when you saved and
reloaded a project - fixed
- If you selected 'Show notes in summary' in the
Project Details dialog (now renamed to Project
Details/Options) the padstone/bearing plate was
omitted from the project summary - fixed
- If the required thickness of a column baseplate
was less than 5mm, the thickness was reset to 5mm
even if you entered a thickness greater than this -
fixed
- The steel column baseplate edit dialog now shows
the actual minimum required dimensions in brackets
after the specified dimensions - the latter are never
changed by the program if they exceed the required
minima.
- A change has been made to the timber beam design,
calculate required width routine: if you got to the
end of the standard width list the program reverted
to checking a 50mm wide member. Now it progressively
increases the width in 10mm stages until a suitable
width is arrived at - this may be of use when
calculating the required floor joists sizing by
considering a 1m bay of floor and calculating the
total joist width/m required (e.g. 170mm = 3.62 x
47mm wide joists/m = joists at 275mm c/s
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Release 4.40g, 7 July 2004
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The key enhancement is a masonry strength
calculator: press the small button captioned '...' to
the right of each masonry strength field in the beam
edit dialog bearings page and you get a dialog into
which you can enter the masonry and mortar strengths,
unit type and bearing class. From these the factored
masonry strength is calculated automatically and an
explanatory calculation is added to the bearing
notes.
Other key changes and fixes:
- For beams, if you select total load entry the
loading duration column (used to enter D/L with
dead/live load entry) is now hidden
- When analyzing a beam extended as a cantilever
with separate live and dead load entry, when the
shear force was calculated with live loads on the
cantilever only, the effect of any live UDL was
mistakenly included which could have, in certain load
cases, shown a higher than correct maximum shear
force.
- The bearing page of the beam edit dialog and the
calculation algorithm have been amended slightly. The
masonry strength field caption is now prefaced with
'Factored' for the avoidance of doubt. The minimum
required bearing length (for padstones and bearing
plates) and plate thickness (for bearing plates) are
now shown in brackets after the respective fields. As
before, if you enter values that are greater than
these they will not be changed when you press
'Apply'. If the bearing length is less, it is now
rounded up to the next figure above the minimum (25mm
steps to 225mm then 50mm steps). The plate thickness
is rounded up to the next higher standard plate
thickness: 5, 6, 8, 10, 15, 20, 25, 30, 40, 50mm. For
each bearing there is now a small 'Recalc' button
that calculates the rounded minima bearing length and
plate thickness
- Similarly for column baseplates, if the length,
width or thickness entered exceeds the required
minimum value it will not be changed. Otherwise a
value rounded up as just described will be
returned
- With steel beams, where no section could be found
that was suitable within the section type and width
limits entered, the section displayed was the
lightest/shallowest in the section list. Now you will
see the last section checked that met these limits
with the usual warning message telling why it was not
suitable.
- You can now enter negative additional moments on
columns
- Copying and pasting an embedded OLE page gave two
views of the same data - changing either changed the
other too. Fixed
- Until now including one or more blank lines in
calculation notes forced a new line. Now one blank
line forces a new line and two blank lines includes a
blank line between paragraphs
- When visible, the Project Manager is now always
docked at the left of the program main window: i.e.
the option to display it as a floating window has
been removed.
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Release 4.40f, 23 March 2004
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One small fix: in 4.40e for twin/triple beams the
prefix 2No/3No was omitted from the section name. The
calculation itself was correct.
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Release 4.40e, 16 March 2004
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- Following present day usage, references to
'Stanchion' have been changed to 'Column'
- The steel grade is now shown next to the section
name on beam and column calculations
- 'HF' (hot-finished) and the weight and are now
added to hollow section names.
- For steel beam calculations deflection is shown
as a fraction of the span to tie in with the
deflection limits in BS449 (e.g. L/333 rather than
0.003L), Where you select L/200 as the deflection
limit this figure is printed as a reference value
rather than L/360
- When a beam extends as a cantilever beyond R2 the
cantilever span was not shown in the Project Summary
- fixed
- An alternative way of numbering pages has been
added: the Print dialog now offers you two options:
Sequential numbering (1,2,3...) as before, with the
first number selectable by the user; or 'Number by
content'. If you choose the latter, pages are given
the same number as the item, with a second number for
subpages, e.g. if a beam is item 12 in the Project
Manager and on the Project Summary, the printouts
will be numbered 12.1 and (if more than one sheet)
12.2, 12.3 etc
- By design calculated field entries ignore
extraneous text which may clarify an expression - e.g
'avg' or 'est'. To save risks of errors being
introduced, any instances of upper case 'O' are now
flagged as an error; until now 2O would have been
evaluated as 2, not 20.
- The Print Summary at start of Print Project pages
setting was not saved in the project file -
fixed
- Long beam descriptions could be overwritten by
the beam span - fixed
- Where beam bearing 1 had a user description only
this was printed with no explanation as to what it
was - fixed
- Where timber post loads created a net negative
moment this was subtracted from the unity expression
- fixed
- Timber beam notes were lost on save and copy -
fixed
- The Project Manager 'Expand' button status
(up/down) is saved when you exit and restored on
startup (when it is down and you click on an item in
the Project Manager its window is displayed in
expanded form)
- The calculator now includes keys to recall the
last expression ('#') and to calculate VAT (at 17.5%)
on the last result or current entry. To change the
rate at any time enter ++new value, the new
value being entered as a fraction, e.g. to make the
rate 15% enter ++0.15
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Release 4.40d, 13 January 2004
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- Problem running 4.40c on XP systems which were
caused by the C:\Windows\SDA_APPS.INI file not being
writeable fixed.
- Reading in a project with steel beam bearing
details of 'user defined' but no details entered gave
a range check error - fixed
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Release 4.40c, 8 January 2004
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- New help file name (sbw.chm) not
initialized correctly - fixed
- Some changes to the way in which an invalid steel
data file name is handled have been made
- The web update facility in 4.40a/b did not work -
fixed (4.40b fix unreliable)
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