B11 | Crack Width Verification | Update Information

01/20

Correction:

For centric constraints and different requirements for the crack width verification at top and bottom side of the cross section, the calculations are based on the worst-case assumptions. In the output block, which documents the authoritative assumptions, however the allowable crack width was given incorrectly.

In the dialog for durability, the reinforcing steel diameter on top side was in some cases overwritten by the reinforcing steel diameter at the bottom.

02/19

Eurocodes

The current Austrian national annex ÖNORM B 1992-1-1:2018-01 was implemented.

Corrections

Smaller internal corrections

01/19

Correction

Smaller internal corrections

02/18

Correction

smaller internal corrections

01/18

Correction

For the crack width proof under load was an incorrect assignment of the parameters from top and bottom corrected in some cases, when cross section has overall tension stress.

02/17

Correction

Program crash while reading ASCII file fixed.

01/17

Correction

The output profile can be saved now.

02/16

Eurocodes

BS EN 1992:2015 and DIN EN 1992:2015 implemented.
Design with early constraint: The dafault for fct,eff is changed to 0,65 * fctm.
Following a recommendation in Beton-und Stahlbetonbau 3/2015 p.183 is for the German Annex for slow hardening concrete possible reduction of the reinforcement for Eq. 7.1 and the left part of Eq. 7.5.1DE no longer recognized.

01/16

Correction

English language settings: Crash when lower deviation the minimum reinforcement. Issue is fixed.

02/15

Addition

Preset design standard can be defined in the project properties.

Correction

User interface and output results representation corrected.
Item template functionality reactivated.

01/15

Correction

For the calculation of the constraining force in floor slabs due to bottom friction is just used the design value of the friction coefficient , the recommended safety factor is 1,35.

Addition

New Version of the National Annex for United Kingdom and Germany implemented:
BS EN 1992:2009 and DIN EN 1992:2013.

01/13B

Correction

Output for minimum reinforcement for centric indirect action in the case of a bottom flange was missing.
An in durability dialogue changed diameter on bottom side was not included in the proofs of minimum reinforcement.

01/13A

Correction

In case of DIN EN 1992-1-1 exposure classes for alkali attack have been added.

For the Check of foundation plates with centrical restraint the issue of Asu was added.

The Output for printer was improved for the sections material and durability.

01/13

Correction

Inputview:
Reinforcement with 2 decimal places as in the outputview

Output view, Minimum reinforcement at centric restraint:
crack width now with 2 decimal places, steel stress was with a factor of 10 too small

new position:
Error in standard selection was eliminated

Addition

DIN EN 1992-1-1/NA Berichtigung 1:2012-06
ÖNorm B 1992-1-1:2011-12-01
NEN-EN 1992-1-1+C2:2011/NB:2011
PN-EN 1992-1-1:2008/NA:2010
CSN EN 1992-1-1/NA:2011
EN 1992-1-1:2004 /AC:2010

02/11B

Correction

Option shorttime load was not saved for foundation plates.

02/11A

Correction

Display of wk and Ds in the input view was with factor 10.
For evidence of hydration for floor slab and wall in new position now that short-term exposure is not activated.
For details and the new detection method on wall now see in B11-help, first chapter, notes for the new version 02/11.

02/11

Extension

DIN EN 1992-1-1/NA Berichtigung 1:2012-06
ÖNorm B 1992-1-1:2011-12-01
NEN-EN 1992-1-1+C2:2011/NB:2011
PN-EN 1992-1-1:2008/NA:2010
CSN EN 1992-1-1/NA:2011
EN 1992-1-1:2004 /AC:2010

Extension

verification according EN 1992-1-1, annexes of Germany, Austria, Belgium, Netherlands, Czech Republic and United Kingdom.
verification wall on foundation: new procedure according the textbook of lohmeyer 9. edition

01/11A

Correction

DIN 1045-1 (2008), minimum reinforcement centric train:
Minas in Equation 127 was exceeded.

01/11

Correction

in strain determination was the time factor for the E-module was not considered

Extension

internal adjustments

01/13B

Correction

Minimum reinforcement for T-beam cross section:
- An amended diameter of the bars on the side of the plate was not taken into account for this check.
- At centric restraint and plate on the bottom side was not issued Minas for the plate
- At centric restraint and plate on the top side MinAs was determined with kc < 1.0 something too small,
the formal output of this line has been corrected