Special aspects of crack width calculation

Recommendations for the building practice

Crack widths have a significant influence on the durability of reinforced concrete members. Therefore, the limitation of crack widths is an indispensable aspect of the design work, and is often decisive for the selection of detail and amount of reinforcement. In general, crack formation is dependent on a large number of influencing factors and boundary conditions, which are included in the normative approaches in a simplified, engineering form. Deviating boundary conditions cannot be considered or can only be taken into account to an approximate extent. In addition, it should be noted that the...

Related articles:

Issue 02/2017 Background and explanations to the new DBV Code of Practice

Limitation of crack formation in reinforced and ­prestressed concrete

On the occasion of the introduction of Eurocode 2 DIN EN 1992 “design of concrete structures” including the associated national annexes for building construction and bridge construction in 2012 and...

more
Issue 02/2021

Cracking behavior of reinforced-concrete elements with multiple-layer reinforced cross sections when using large bar diameters

The formation of cracks is an inherent feature of reinforced-concrete construction. The width of any cracks occurring needs to be limited to a non-detrimental extent, however, in order to permanently...

more
Issue 06/2022

Cracking behavior and splitting failure mode in textile-reinforced concrete

The existing knowledge of the bond behavior of reinforced concrete cannot be transferred “as is” to textile-reinforced structures. The bond between textile reinforcement and concrete is dependent on...

more
Issue 02/2016 Bending elements and columns

Reviewing the additional rules for large diameter bars ­according to EC2 –

Background The use of bar diameters larger 32 mm enables a significant simplification to be achieved in the reinforcement layout of highly stressed reinforced-concrete elements such as columns,...

more
Issue 11/2021 Monday, 15th November → Innovation workshop (5)

MasterFiber: The sustainable and efficient reinforcement for precast concrete

MasterFiber structural polymeric fibers have been established for a long time ago in flooring and pavement applications replacing steel mesh or steel fibers. In recent years they have been used as...

more