Seismic Grade: Determined by Standards
The seismic grade of seismic bracing is determined according to relevant standards based on: seismic fortification intensity (region), seismic fortification category (Class A/B/C/D), design parameters (seismic action), and code requirements (mandatory installation). Industry experts note that determining the seismic grade involves an assessment based on standards: seismic design parameters are established using the local fortification intensity and the building’s seismic fortification category;
the installation of seismic bracing is a mandatory code requirement, executed according to design drawings and standards, and subject to verification during the detailed design phase.
Determined by Standards
- Fortification Intensity: Regional intensity (seismic), the foundation;
- Seismic Category: Class A/B/C/D (category), classification;
- Design Parameters: Seismic action (parameters), calculation;
- Code Requirements: Mandatory installation (code), compliance;
- Detailed Design: BIM detailing (design), verification.
Key Determination Points
First, regional intensity.
Determining the fortification intensity (region) is the foundation.
Second, category classification.
Classifying the seismic category (building) ensures proper matching.
Third, parameter calculation.
Calculating seismic action (parameters) is critical to the design.
Fourth, code compliance.
Ensuring mandatory installation (code) compliance prevents omissions.
Pitfalls to Avoid
First, “ignoring standards.”
Failure to follow standards (omitting installation) affects compliance.
Second, “incorrect parameter calculation.”
Errors in seismic parameters (insufficient design) occur during calculation.
Third, “design omissions.”
Lack of detailed design (disorderly installation) requires BIM verification.
Trends and Reminders
Seismic bracing is becoming mandatory, driven by the widespread adoption of seismic standards (requiring mandatory installation) and the implementation of BIM (digital design).
For purchasers, the recommended approach is to “specify based on standards, calculate parameters, and verify detailed designs.”
Determining the seismic grade ensures safety and regulatory compliance.
