: Cracked sections are critical for accurate rigid and flexible diaphragm modeling and basement two-stage analysis. 2. Identifying Crack-Prone Areas (Failure Inspection)
Imagine designing a 10-story building with a cracked version. The software might indicate the columns are safe, but due to a tampered solver, they actually fail under seismic loads. You would be legally and professionally liable for any collapse.
Navigate to the or Analysis Settings in ideCAD. Locate the Stiffness Modifiers (or Crack Modifiers) tab. idecad structural crack
) and the mean strain difference between concrete and reinforcing steel (
: The natural period of the building increases when cracked stiffness is applied, which directly impacts the calculated seismic base shear. Standard Code-Based Stiffness Modifiers : Cracked sections are critical for accurate rigid
). If cracks exceed the allowable width, you must take action. Step 4: Redesign and Re-analyze If the cracking is too severe:
Determination and Limitation of Story Drifts per ASCE 7-16 §12.12 The software might indicate the columns are safe,
The capability in ideCAD Structural refers to the software's advanced modeling of cracked section properties for seismic and structural analysis. This feature allows engineers to more accurately simulate the real-world behavior of concrete elements—such as beams, columns, and walls—under load by reducing their stiffness to account for inevitable cracking. Key Aspects of the Cracked Section Feature
ideCAD's strength lies in its workflow. Instead of using separate programs for analysis and design, ideCAD performs these steps concurrently. A. Modeling and Analysis
: Cracked sections increase the overall flexibility of the building. This results in larger lateral displacements (P-Delta effects) during seismic events.
) is exceeded. These high-stress zones are highly susceptible to cracking. Non-linear and Cracked Section Analysis