The timber checks can be used for buildings and engineering constructions under observance of the following standards:

• DIN 1052:2008
• EN 1995-1-1:2010 and 1995-1-2:2010 as the base document
• DIN EN 1995-1-1:2010 and 1995-1-2/NA:2010-12 with the National Annex Germany
• OENORM EN 1995-1-1:2010 and 1995-1-2/NA:2011-09 with the National Annex Austria
• SS-EN 1995-1-1:2010 and 1995-1-2/NA:2010-12 with the National Annex Sweden

Actions, Design Situations The checks are carried out after the static calculation. For this purpose the load cases are assigned to the actions. Taking into account the preset safety factors and combination coefficients defined in DIN 1052, DIN 1055-100 or EN 1990, the program automatically calculates the internal forces for the desired design situations. Cross-Section Checks For every set of internal forces the modification factor kmod will be determined from the service class and the load-duration. Then the following checks will be performed: Tension parallel to the grain Compression parallel to the grain Bending Combined bending and axial tension Combined bending and axial compression Shear from lateral force Torsion Combined shear and torsion Buckling Check with Equivalent Beam Method The buckling checks are carried out according the equivalent beam method as described in DIN 1052, Chapter 10.3 respectively EN 1995, Chapter 6.3.2. Design Method for Fire Conditions Structural fire design is carried out according to the reduced cross-section method as described in EN 1995-1-2, Chapter 4.2.2. For this, the flame-edges, the duration of the fire and the charring rate ßn are evaluated. Utilization, Results The utilization is defined as the ratio between the action Ed and the resistance Rd of a cross-section. The following results are available: Utilization of the beams for each situation. Maximal utilization of the beams of all situations. Maximal utilization of the sections of all situations. Additionally the extremal design values for internal forces, support reactions, deformations, soil pressures and stresses are saved for all check situations. The detailed log also lists the decisive combination internal forces of all design situations for each result location.

DIN 1052 Manual EN 1995 Manual Actions and Design Situations Utilizations:  Maximum Bending Compression parallel to the grain Combined bending and axial compression Combined bending and axial tension Listing

References:

DIN 1052:2008-12
Entwurf, Berechnung und Bemessung von Holzbauwerken -
Allgemeine Bemessungsregeln und Bemessungsregeln für den Hochbau.
(Design of Timber Structures – Common Rules and Rules for Buildings).
Beuth Verlag GmbH, Berlin 2008.

DIN 1052 Berichtigung 1:2010-05 (Corrigendum 1:2010-05)
Entwurf, Berechnung und Bemessung von Holzbauwerken -
Allgemeine Bemessungsregeln und Bemessungsregeln für den Hochbau,
Berichtigung zu DIN 1052:2008-12.
(Design of Timber Structures – Common Rules and Rules for Buildings).
Beuth Verlag GmbH, Berlin 2010.

DIN 1055-100:2001
Einwirkungen auf Tragwerke.
Teil 100: Grundlagen der Tragwerksplanung, Sicherheitskonzept und Bemessungsregeln.
(Actions on Structures. Part 100: Basis of Design, Safety Concept and Design Rules).
Beuth Verlag GmbH, Berlin 2003.

DIN EN 1991-1-1/NA:2010-12
Nationaler Anhang – National festgelegte Parameter –
(National Annex – Nationally Determined Parameters –)
Eurocode 1: Einwirkungen auf Tragwerke –
Teil 1-2: Allgemeine Einwirkungen - Brandeinwirkungen auf Tragwerke.
( Eurocode 1: Actions on Structures – Part 1-2: General Actions – Actions on Structures exposed to Fire)
Publisher: DIN Deutsches Institut für Normung e.V., Berlin.
Beuth Verlag, Berlin 2010.

DIN EN 1995-1-1/NA:2010-12
Nationaler Anhang – National festgelegte Parameter –
(National Annex – Nationally Determined Parameters –)
Eurocode 5: Bemessung und Konstruktion von Holzbauten –
Teil 1-1: Allgemeine Regeln und Regeln für den Hochbau.
(Design of Timber Structures – Part 1-1: General – Common Rules and Rules for Buildings).
Publisher: DIN Deutsches Institut für Normung e.V., Berlin.
Beuth Verlag, Berlin 2010.

DIN EN 1995-1-2/NA:2010-12
Nationaler Anhang – National festgelegte Parameter –
(National Annex – Nationally Determined Parameters –)
Eurocode 5: Bemessung und Konstruktion von Holzbauten –
Teil 1-2: Allgemeine Regeln - Tragwerksbemessung für den Brandfall.
(Eurocode 5: Design of Timber Structures – Part 1-2: General – Structural Fire Design)
Publisher: DIN Deutsches Institut für Normung e.V., Berlin.
Beuth Verlag, Berlin 2010.

EN 1990:2002/A1:2005/AC:2010
Eurocode: Basics of Structural Design.
Publisher: CEN European Committee for Standardization, Brussels.
Beuth Verlag, Berlin 2010.

EN 1991-1-1:2002
Eurocode 1: Actions on Structures –
Part 1-1: General Actions.
Densities, Self-Weight, Imposed Loads for Buildings
Publisher: CEN European Committee for Standardization, Brussels.
Beuth Verlag, Berlin 2002.

EN 1991-1-2:2010
Eurocode 1: Actions on Structures –
Part 1-1: General Actions – Actions on Structures exposed to Fire
Publisher: CEN European Committee for Standardization, Brussels.
Beuth Verlag, Berlin 2010.

EN 1995-1-1:2010
Eurocode 5: Design of Timber Structures –
Part 1-1: General – Common Rules and Rules for Buildings.
Publisher: CEN European Committee for Standardization, Brussels.
Beuth Verlag, Berlin 2010.

EN 1995-1-2:2010-12
Eurocode 5: Design of Timber Structures – Part 1-2: General – Structural Fire Design
Publisher: CEN European Committee for Standardization, Brussels.
Beuth Verlag, Berlin 2010.

Harrington, J.; Jacob, M.; Short, C.
Handbook on structural timber design to Eurocode 5.
Publisher: National Council for Forest Research and Development (COFORD).
COFORD, Dublin 2006.

ÖNORM B 1990-1:2004-05
Eurocode: Grundlagen der Tragwerksplanung –
Nationale Festlegungen zu ÖNORM EN 1990 Anhang A1:2003.
(Basics of Structural Design – National Specifications for OENORM EN 1990 Annex A1:2003).
Publisher: ON Österreichisches Normungsinstitut, Vienna.
Österreichisches Normungsinstitut, Vienna 2004.

ÖNORM B 1991-1-2:2003-12
Eurocode 1: Einwirkungen auf Tragwerke –
Teil 1-2: Allgemeine Einwirkungen - Brandeinwirkungen auf Tragwerke.
Nationale Festlegungen zu ÖNORM EN 1991-1-2.
(Eurocode 1: Actions on Structures – Part 1-2: General Actions – Actions on Structures exposed to Fire. National Specifications for OENORM EN 1991-1-2.)
Publisher: ON Österreichisches Normungsinstitut, Vienna.
Österreichisches Normungsinstitut, Vienna 2003.

ÖNORM B 1995-1-1:2010-08
Eurocode 5: Bemessung und Konstruktion von Holzbauten –
Teil 1-1: Allgemeine Regeln und Regeln für den Hochbau.
Nationale Festlegungen zu ÖNORM EN 1995-1-1.
(Design of Timber Structures – Part 1-1: General – Common Rules and Rules for Buildings.
National Specifications for OENORM EN1995-1-1).
Publisher: ON Österreichisches Normungsinstitut, Vienna.
Österreichisches Normungsinstitut, Vienna 2010.

ÖNORM B 1995-1-2:2011-09
Eurocode 5: Bemessung und Konstruktion von Holzbauten –
Teil 1-2: Allgemeine Regeln - Bemessung für den Brandfall.
Nationale Festlegungen zu ÖNORM EN 1995-1-2.
(Design of Timber Structures – Part 1-2: General – Structural Fire Design.
National Specifications for OENORM EN 1995-1-2).
Publisher: ON Österreichisches Normungsinstitut, Vienna.
Österreichisches Normungsinstitut, Vienna 2011.

Porteous, J.; Abdy, K.
Structural Timber Design on Eurocode 5.
Blackwell Publishing Ltd, Oxford 2007.

SS EN 1990:2010-12
Application of SS EN 1990
Publisher: Swedish Board of Housing, Building and Planning (Boverket).
Boverket, Karlskrona 2010.

SS EN 1991-1-2:2010-12
Application of SS EN 1991-1-2
Publisher: Swedish Board of Housing, Building and Planning (Boverket).
Boverket, Karlskrona 2010.

SS EN 1995-1-1:2010-12
Application of SS EN 1995-1-1.
Publisher: Swedish Board of Housing, Building and Planning (Boverket).
Boverket, Karlskrona 2010.

SS EN 1995-1-2:2010-12
Application of SS EN 1995-1-2
Publisher: Swedish Board of Housing, Building and Planning (Boverket).
Boverket, Karlskrona 2010.

Werner, G.; Zimmer, K.
Holzbau 2 - Dach- und Hallentragwerke nach DIN 1052 (neu 2008) und Eurocode 5.
(Timber Structures 2 – Roof and Hall Structures According to DIN 1052 (new 2008) and Eurocode 5.).
4., neu bearbeitete Auflage. (4th newly reworked edition).
Springer Verlag, Berlin 2010.