ABNT NBR 15421:2006 (Brazil)
Projeto de estruturas resistentes a sismos - Procedimento.
Implemented in CYPECAD and Metal 3D.
Update history
CYPE 3D
ABNT NBR 14762:2010 (Brazil)
Dimensionamento de estruturas de aço constituídas por perfis formados a frio.
This Brazilian code has been implemented for cold formed steel sections. The sections which can be used are the same as those available with the NBR 14762:2001 code, which is currently no longer in force. Both codes are implemented in CYPECAD, Metal 3D and the Portal Frame Generator.
ABNT NBR 8800:2008 (Brazil)
Projeto de estruturas de aço e de estruturas mistas de aço e concreto de edificios.
As of the 2012.b version, Composite sections have been included for this Brazilian code. The ABNT NBR 8800:2008 code was implemented in previous versions for the design of welded and bolted connections resolved by the Joints I, Joints II, Joints III, Joints IV and Joints V modules, and for the design of rolled and welded simple steel sections in CYPECAD and Metal 3D.
NTE E.060: 2009 (Peru)
Concreto armado
Implemented in CYPECAD and Metal 3D.
NTCRC:2004 (Mexico)
Normas técnicas complementarias para diseño y construcción de estructuras de concreto para el Distrito Federal
Implemented in CYPECAD and Metal 3D.
NCh430.Of2008 (Chile)
Hormigón armado - Requisitos de diseño y cálculo
Implemented in CYPECAD and Metal 3D.
CBH 87 (Bolivia)
ICS 91.080.40 Estructuras de hormigón. Año 1987
Implemented in CYPECAD and Metal 3D.
ABNT NBR 6118:2007 (Brazil)
Projeto de estruturas de concreto – Procedimento
Implemented in CYPECAD and Metal 3D.
The design process of special aluminium sections has been optimised by now obtaining the shear plastic areas, as well as the reductions which, because of the tangential stresses due to the torsional moment and shear forces, arise when subject to normal forces: axial force and bending moments. This way, in checks where in previous versions, an elastic analysis was used (in accordance with the plastification criteria exposed in EC9), now a plastic analysis is carried out and, therefore, improved usage factors are obtained.
In this new version, aluminium sections requiring longitudinal welds can now be introduced in the Special aluminium sections editor. The program checks these sections taking into account the reduction of the resistance properties which arise in areas close to these welds: where the elastic limit of the material is affected significantly. The softened zone is referred to as the HAZ (heat affected zone), its extent and severity are calculated by the program.
In previous versions of the program, the automatic calculation of the susceptibility to local buckling due to compression was already included assuming that each of the flat elements making up the section buckled in an isolated manner (independent from the rest), and the possibility was included, for any other type of buckling other than the individual type to be considered, to modify the local buckling coefficient which affects the slenderness parameter associated to each element. In this new version, the automatic calculation of the susceptibility to local buckling due to compression considering the possibility that several elements can buckle together as if they were a single element, is also included, hence combined buckling modes are obtained. The program is able to detect and analyse the buckling in a group of elements in the following cases:
- Element sequence with all their ends aligned along a straight line
- Element sequence with all their ends arranged along a circumference arc with small curvature
- Element sequence making up a cell
The combined buckling is also studied if the elements making up the section have been stiffened, which is commonly referred to as buckling due to distortion. Regarding the stiffened elements, a new assistant has been implemented for the design with standard reinforcement in accordance with that exposed in EC9.
