Checks According to DIN 1045-1, Structures Made out of Concrete, Reinforced Concrete and Prestressed Concrete

Start

Overview
Modeling

News
New Features

Products
Price List

Service
User Tips
Problem Solving

Study Version
Introductory Course

Gallery

Contact

Checks According to DIN 1045-1
Structures Made out of Concrete, Reinforced Concrete and Prestressed Concrete

The InfoCAD program system can be used to conduct ultimate limit state and serviceability checks for any 2D and 3D loaded beam or shell structure. Elements with no prestress as well as prestressed elements with subsequent bond, without bond, with external prestressing and in mixed construction can be analyzed.

Actions, Design Situations

The actions according to DIN 1055-100 are simply mapped to the load cases by the user. The program then automatically creates the decisive design values for the ultimate limit state and serviceability limit state while considering the safety factors and combination coefficients. For each combination different design situations can be defined for the construction and end states. When conducting the check, the extreme values deriving from all combinations and situations applies. Optionally, the checks can be carried out for all possible combinations of internal forces.

Ultimate Limit State Checks

Minimum reinforcement for securing ductile behavior of the element
Bending with or without longitudinal force or longitudinal force only
Lateral force under consideration of the minimum level of reinforcement
Pure torsion and torsion with lateral force
Checks against punching shear
Checks against fatigue for concrete, bending, lateral force and torsion reinforcement as well as for tendons

Checks at the Serviceability Limit State

Limiting the concrete compressive stresses
Limiting the reinforcing steel stresses
Limiting the prestressing steel stresses
Minimum reinforcement for the limit of the crack width
Limiting the crack width via direct calculation
Check of decompression
Limiting deformations

Ultimate Limit State

The dimensioning of the reinforcement is performed separately on a per checks basis for the modeled design situations. This is determined individually for each combination of internal forces. The final outcome is a result of the extreme value derived from all calculated reinforcements. In the check against fatigue, the reinforcement that was previously determined is, if necessary, increased iteratively until the required stress range is met.

Serviceability

If required, the checks are carried out in state II under consideration of the calculated maximum reinforcement. In order to attain the required crack width, the minimum reinforcement is increased, if necessary.

Situation	Load Capacity	Serviceability
Permanent, temporary Extraordinary Earthquake	Longitudinal reinforcement Lateral reinforcement Torsional reinforcement Punching shear
Characteristic (Rare)	Robustness reinforcement	Concrete compressive stress Reinforcing steel stress Decompression class A Crack reinforcement Crack width class B
Frequent Fatigue	Reinforcing steel fatigue Prestressing steel fatigue Concrete fatigue	Decompression class B Crack width class C, D
Quasi-permanent		Concrete compressive stress Prestressing steel stress Decompression class C Crack width class E, F Deformations

Results

The calculated reinforcement can be output graphically (contours, color gradient, section or numerically) or in table form. This can be selected either for individual checks or for the entire reinforcement. The checks are documented in a detailed log.