June 17, 2016
Why Do Seismic Brace Story Forces Change My Existing Code Checks?
It is possible for seismic (OCBF or SCBF) vertical braced connections to have some limit state code checks lower than those for the same non-seismic connection.
Happy Earth Day on April 22! As structural engineers, our role extends beyond construction; it’s a commitment to sustainability that spans the entire lifecycle of a building. Let's explore how we can make every building a story of continuous rebirth. Birth of a Building: Sustainable Foundations Our journey begins with choosing sustainable materials like bamboo or recycled steel, setting a foundation that reduces the initial environmental impact. Local sourcing and eco-friendly manufacturing processes are crucial in minimizing the carbon footprint right from the start. Life: Efficiency in Action During its operational phase, a building's sustainability depends on our designs. Energy-efficient systems, smart water management, and superior insulation ensure that the building remains functional and adaptable, promoting a longer lifespan with minimal environmental impact. Twilight Years: Planning for Flexibility As buildings age, planning for future modifications becomes essential. Designing with modularity allows parts to be upgraded or replaced easily, extending the building's useful life and delaying deconstruction. End of the Line: Deconstruction Over Destruction Eventually, every building reaches the end of its useful life. Here, we focus on dismantling so materials can be reused or recycled. This phase is about keeping materials out of landfills and re-entering them into the production…
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It is possible for seismic (OCBF or SCBF) vertical braced connections to have some limit state code checks lower than those for the same non-seismic connection.
Vertical Diagonal Brace connections and Vertical Chevron Brace connections may be designed as Special Concentric Braced Frame (SCBF) connections in RISAConnection v6.
This webinar shows users how to design and detail brace connections including gussets to meet the AISC 341/358 Seismic Provisions.
Vertical Diagonal Brace connections and Vertical Chevron Brace connections may be designed as Ordinary Concentric Braced Frame (OCBF) connections in RISAConnection v6.
RISAConnection v6 has introduced the ability to design vertical brace connections per the seismic design provisions of the AISC 341-10 Seismic Design Manual.
The Pacific Earthquake Engineering Research center (PEER) has a large library of measured earthquake records. Below is an example of how to quickly convert one of these records into a format that can be imported into RISA.
Time history analysis solves for normal analysis results (joint displacements, member forces, code checks, etc.) based on loading that varies with time. For some analyses it may be useful to view an animation of the deflected shape of the structure as a function of time. This blog topic serves as a...
In the Seismic Loads dialog there is a checkbox for “Include structure weight in base shear”.
RIAFloor designs the gravity system and then integrates with RISA-3D to design the lateral system. Only the lateral members are taken from RISAFloor over to RISA-3D. The loading is automated in this integration so one of the most common questions is: what loads are transferred when switching from...
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