Technical Bulletins
June 2019
TB_002: The ρ Factor & Deflection
Per ASCE7 section 12.3.4.1 there are conditions where ρ factor can be 1.0, one of them is for drift calculation and P-delta effects. However per section 12.12.1.1 for seismic force-resisting systems solely comprising moment frames in structures assigned to seismic design category D,E or F the design story drift (Δ) [...]
May 2019
TB-001: Analysis & Design Pitfalls in Steel Moment Frame Structures
In the era of computerized structural analysis and design, advanced building regulations are developed to more precisely calculate the performance of structures in such extreme loading conditions as earthquakes. Structural engineers using the commercially available software are entitled to receive in-depth knowledge about each piece of software they use, along [...]