INDEX
Building codes
Adaptation to the changes in the CTE (Spanish technical building code)
- The Ministry of Housing published in the Spanish Official State Bulletin
of Thursday, 23rd of April that several Basic Documents of the CTE had
undergone modifications. The majority of CYPE programs were adapted to these
changes in the 2009.1.k and 2009.1.l versions. In the 2009.1.m version, the adaptation
process has been completed by implementing the modifications relative to the
DB SI: Safety in case of fire.
Code implementation
- Code regarding loads on structures. Wind loads
- Wind Loads according to the National Building Code of Canada (NBC 05)
Part 4.1.7
This wind code has been implemented in the Portal Frame Generator and contemplates
a joint analysis of wind loading on all the frames introduced in the job.
- Code regarding loads on structures. Seismic loads
- Algerian Seismic Loading Code RPA 99 / VERSION 2003 (Algeria)
Implemented in CYPECAD and Metal 3D
- Code for Structural Design in the Republic of Panama (REP-04)
Implemented
in CYPECAD and Metal 3D
Improvements in the application of the
code relative to snow loads
- Code regarding loads on structures. Snow loads
- RSA (Code for Safety and Loads for Buildings and Bridge Structures)
-Portugal-
The snow accumulation effect has been implemented for this code in the Portal Frame
Generator.
- Eurocode 1 (Portugal) - EN 1991-1-4 (2005)
In the Portal Frame Generator, the user may select the town were the structure is
to be built and the program will automatically assign the corresponding topographic
altitude and climate zone.
Metal 3D and Integrated 3D Structures of CYPECAD
Improvements in the ultimate limit state reports of aluminium sections
- Check for shear buckling
Within the shear checks carried out by the program, an additional check for shear
buckling has been implemented for when the section web is slender.
- Check for
shear and bending
When the shear effect in the calculation of the design bending moment is negligible,
a justification text is generated.
- Bending checks of elements
When lateral buckling is negligible, a justification text is generated.
- Torsion,
shear, axial force, and biaxial bending checks of elements
When the combined effect of torsion and shear is negligible, upon calculating the
normal design forces, a justification text is generated.
- Check for torsion
The calculation of the plastic torsional modulus has been included in the checks
for torsion, so a more precise analysis is carried out.
- Sections with Iz > Iy
It is now possible to check
sections whose inertia in its Z-axis is greater than that of its Y-axis.
Portal Frame Generator
- The Canadian wind code has been implemented (as is indicated in the section Code
implementation - Code regarding loads on structures -Wind loads)
- Improvements in the application of the RSA (Portugal) and Eurocode 1 (Portugal)
codes, as is indicated in the section Improvements in the application of the code
relative to snow loads.
INDEX
CYPECAD
Detailed reports on ultimate limit state checks carried out on welded and rolled steel sections
introduced in Integrated 3D structures in CYPECAD and in Metal 3D.
- As of the 2009.1.h version, it is possible to obtain detailed reports on ultimate limit
state checks carried out on welded and rolled steel sections in Integrated 3D structures
in CYPECAD and in Metal 3D
As of the 2009.1.j version, it is also possible to obtain detailed
reports on ultimate limit state checks carried out on welded and rolled steel sections
introduced in CYPECAD (columns and beams)
To view these reports, having analysed the job, click on the following options:
- Columns
Results tab > Columns > Edit > select steel column > U.L.S.
button
Or alternatively:
Column Definition tab > Introduction > Columns, shear walls and
starts > Design
button > select steel column > U.L.S. button
- Beams
Results tab > Beams/Walls > Beam errors > select steel beam > U.L.S.
checks button
- Summarised column and beam reports
Click on the following option from
any tab File> Print > Job report > U.L.S. checks
for beams and columns.
Joists
- Matching of joist top reinforcement and positive moments for all the floor groups
of the building
It is possible to match the top reinforcement of joists and
their positive moments on all floor groups without the need of having to change to another
group. To do so, the commands Match
top reinforcement (Results tab > Joists > [Top reinf.] Match) and Match
joists (Results tab > Joists > [Bottom reinf] Match) contain two options: Match
in all groups and Match in current group.
- Joist force diagrams
per rib or per metre slab width
The joist force diagrams can be viewed with their values per rib or per metre slab
width. The way in which the results are expressed can be configured for viewing on screen
as well as for the joist force reports:
- On screen
In the Forces in joists dialogue box (Results
tab > Envelopes > Forces
in joists) two options have been included: Values per rib and Values
per metre width
- In joist force reports
In the Force envelopes report (from any tab > File > Print > Job
report > Forces in joists > select group(s)) the Values per rib and Values
per metre width options can also be activated.
Improvements in the use of the B.A.E.L. 91 code
- Ultimate limit state combinations for failure
The Use or Use category and Snow level can
be selected so the program may automatically generate the load combinations (in accordance
with the selection that has been carried out) for the analysis depending on the ultimate
limit states for failure of each material (concrete, foundation concrete, cold formed steel,
rolled steel and wood). To do so, new options have been implemented in the Limit
states dialogue (Job > General data > Limit states (combinations) button)
which allow for the Use and Snow level to be selected for the various materials.
Additionally,
two options have been incorporated in the same dialogue box which generate the combinations
of the BAEL 91 code bearing in mind the earthquake code in use:
- BAEL 91 option
The load combinations are generated taking into account the PS 92 earthquake code (France)
- RPS
2000 option
The load combinations are generated taking into account the RPS 2000 earthquake code
(Morocco).
Metal 3D and Integrated 3D structures in CYPECAD
Rotational
stiffness calculations for bolted connections
As of the 2009.1.g version, users
may introduce a value for the rotational stiffness at the ends of elements using the Fixity
at ends option, located in the Bar menu. Metal 3D calculates the initial rotational stiffness
of elements fixed to bolted connections which have been designed and displays them in the
Joints report so users may compare the value to that introduced.
As of the 2009.1.j version,
Metal 3D compares the rotational stiffnesses introduced by the user and those proposed by
the program, and displays the comparison in an agile and efficient way using the Rotational
stiffness option located in the Joints menu.
This option allows the user to automatically assign the rotational stiffnesses proposed by
the program as well as review them to decide which rotational stiffnesses to adopt.
Code check reports on rolled
steel sections for Eurocode 3 (France) - NF EN 1993 – 1-1/NA:
2007-05
- The number of codes is increased for which the detailed check reports on ultimate limit
states of welded and rolled steel sections are obtained. These reports are available for
the following codes and steel types:
- Rolled and welded sections:
- CTE DB SE-A (Spain)
- CAN/CSA S16-01 (Canada)
- Eurocode 3 (Generic, Bulgaria and Portugal)
- Eurocode 3 (France) - NF EN 1993-1-1/NA: 2007-05 (newly implemented)
- Cold formed steel sections
- NBR 14762 (Brazil)
INDEX
Newly implemented building codes
We have recently implemented the following building codes:
- Concrete Codes:
- ACI 318M-08 (USA)
- CIRSOC-2005 (Argentina)
- Eurocode 2 (Bulgaria)
- Seismic Codes:
- Decree #2, 23.07.2007 (Bulgaria)
- CSRC-2002 (Costa Rica)
- Snow loading according to national building codes:
- NBC05 (Snow loads generated
according to the Canadian Building Code for use in the Portal Frame Generator)
Metal 3D and integrated structures in CYPECAD
- Users can now edit steel cloumn to concrete column baseplate connections
- Users
can now introduce joints to an integrated 3D structure imported from a .DXF/.DWG
file
- Detailed Ultimate Limit State (ULS) calculations when the steel column has
been created using the option of introducing the column start on an existing
column
- We have augmented the number of
building codes for which you can now obtain USL calculations for both rolled
and welded steel members. The calculations are available for the following
building codes:
- Rolled and welded steel members:
- CTE DB SE-A (Spain)
- CAN/CSA S16-01 (Canada)
- Eurocode 3 (Generic, Bulgaria, and Portugal)
- Cold formed steel members:
INDEX
CYPECAD
New features in Integrated 3D structures
- CYPECAD’s Integrated 3D structures contain the same improvements and new features as Metal 3D
Metal 3D
Detailed ultimate
limit state check reports
- Metal 3D and CYPECAD’s Integrated 3D structures generate detailed ultimate limit
state check reports of rolled and welded steel sections for the CTE DB SE-A (Spain) and
CAN/CSA S16-01 (Canada) codes, and for cold formed steel sections for the NBR 14762 (Brazil)
code.
These reports contain all the checks carried out by the program for the section design
and therefore constitute an important document with which the user can:
- Verify the
design of the sections
- Optimise the design of the sections
The level of detail of these reports also provides an informative document,
allowing the user to know all the checks to which the section has been submitted.
More information can be found on these documents in the detailed ultimate limit state check reports.
Joints
New bolted connections
- Beam joint type: a main continuous element to which one or two orthogonal elements
are pinned to it.
- Two beam connection (with or without a bottom haunch) fixed to the flanges
of a column (continuous or non-continuous).
- Two beam connection (with or without a bottom haunch) fixed to the flanges
of a column (continuous or non-continuous) with an orthogonal beam pinned to
the web of the column.
- Two beam connection (with or without a bottom haunch) fixed to the flanges
of a column (continuous or non-continuous) with two orthogonal beams pinned to
the web of the column.
New options for connection design
- Stiffeners at haunch ends
Stiffeners may be used at haunch ends in column-beam connections and
at ridge connections even though they may not be required in the design
calculation. These two options can be activated in the Options dialogue (Joints > Options)
which now contains two tabs:
- Bolts: Contains bolt design options. These options
were available in previous versions.
- Stiffeners: Contains the two new options
that force the program to always provide stiffeners in column-beam and ridge
connections.
- Baseplate options
The same design options that are used in the Baseplates module are
used for the baseplate design in the Joints I module, except for the type
of anchorage of the bolt to the plate. These options are configured in the menu Baseplates > Options.
More
information on the properties of the two Metal 3D baseplate design modules can be found
in the Baseplates section.
Improvement in the joints analysis period
The time required for the joints design has been reduced with the use of multiprocessors
(the user must have one of the two following modules: Parallel analysis
with two processors or Parallel analysis with four processors).
Welded connection design in accordance to the ABNT NBR 8800:2008 (Brazil) code
Welded connection design has been updated for Brazil in accordance to the ABNT
NBR 8800:2008 code (Projecto de estruturas de aço e de estruturas mistas de aço
e concreto de edifícios).
Joints export in CIS/2 format
The option: Complete layout of the structure, including joints has been implemented.
Therefore, it is now possible to export all the joints designed by Metal 3D to CIS/2
format, if the corresponding permits have been acquired in the user license. No special
permits are necessary to export the geometry and properties of the nodes and bars;
the user is only required to have the Metal 3D license.
Other versions
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