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Author Message
  Topic: A Macro to calculate KZ Parameter - Eurocode (NL)
Dr. N. Subramanian

Replies: 4
Views: 6211

PostForum: SEFI General Discussion   Posted: Thu May 25, 2023 11:36 pm   Subject: Re: A Macro to calculate KZ Parameter - Eurocode (NL)
Dear Er. Someshwar Ganti


I appreciate your boldness!

Warm regards
Subramanian


Hi

i have noticed that the xls sheet is protected, well if someone wants to post a help to users, in m ...
  Topic: Main approaches for controlling the stiffness and damping of a structure
Dr. N. Subramanian

Replies: 13
Views: 12873

PostForum: SEFI General Discussion   Posted: Fri Apr 28, 2023 4:29 pm   Subject: Re: Main approaches for controlling the stiffness and damping of a structure
Replies by Er. Ron Hamburger


What are acceptable methods to determine shear wave velocity of soils in upper 100 feet?


There are several methods for doing this. Some involve boring holes int ...
  Topic: Main approaches for controlling the stiffness and damping of a structure
Dr. N. Subramanian

Replies: 13
Views: 12873

PostForum: SEFI General Discussion   Posted: Fri Apr 28, 2023 4:26 pm   Subject: Re: Main approaches for controlling the stiffness and damping of a structure
Replies by Er. Ron Hamburger


Is there any way to dissipate energy in flat plate with shear wall system during the earthquake? Can you put some wall with less stiffness than other to dissipate en ...
  Topic: Main approaches for controlling the stiffness and damping of a structure
Dr. N. Subramanian

Replies: 13
Views: 12873

PostForum: SEFI General Discussion   Posted: Fri Apr 28, 2023 4:22 pm   Subject: Re: Main approaches for controlling the stiffness and damping of a structure
Reply by Er. Ron Hamburger


Why are there two different earthquake levels defined: maximum considered earthquake, and design earthquake? What is the relationship between them?


This is becaus ...
  Topic: Main approaches for controlling the stiffness and damping of a structure
Dr. N. Subramanian

Replies: 13
Views: 12873

PostForum: SEFI General Discussion   Posted: Fri Apr 28, 2023 4:19 pm   Subject: Re: Main approaches for controlling the stiffness and damping of a structure
Replies by Er. Ron Hamburger



Do you have a good resource for determining the modal response factors (i.e., mass participation) for a uniformly distributed system (i.e., a simple span beam)?
...
  Topic: Main approaches for controlling the stiffness and damping of a structure
Dr. N. Subramanian

Replies: 13
Views: 12873

PostForum: SEFI General Discussion   Posted: Fri Apr 28, 2023 4:14 pm   Subject: Re: Main approaches for controlling the stiffness and damping of a structure
Replies by Er. Ron Hamburger


As structural consultants, should we explain to clients the benefits of using a seismic risk category higher than the normative limit or do we limit ourselves to the ...
  Topic: Main approaches for controlling the stiffness and damping of a structure
Dr. N. Subramanian

Replies: 13
Views: 12873

PostForum: SEFI General Discussion   Posted: Fri Apr 28, 2023 4:11 pm   Subject: Re: Main approaches for controlling the stiffness and damping of a structure
Reples by Er. Ron Hamburger

Is it required to apply torsional amplification factor when doing dynamic analysis (response spectrum analysis) and limit the amplification factor to 3?


Per ASCE 7 ...
  Topic: Main approaches for controlling the stiffness and damping of a structure
Dr. N. Subramanian

Replies: 13
Views: 12873

PostForum: SEFI General Discussion   Posted: Fri Apr 28, 2023 4:09 pm   Subject: Re: Main approaches for controlling the stiffness and damping of a structure
Replies by Er. Ron Hamburger

Do we need to consider vertical ground motion in calculating P-Delta effect?

Vertical seismic response need not be considered when evaluating P-delta effect. This i ...
  Topic: Main approaches for controlling the stiffness and damping of a structure
Dr. N. Subramanian

Replies: 13
Views: 12873

PostForum: SEFI General Discussion   Posted: Fri Apr 28, 2023 4:07 pm   Subject: Re: Main approaches for controlling the stiffness and damping of a structure
Reply by Er. Ron Hamburger

Please comment on the "strong column weak beam" approach to design of seismic structures? Is it still considered acceptable?


The strong column-weak beam a ...
  Topic: Main approaches for controlling the stiffness and damping of a structure
Dr. N. Subramanian

Replies: 13
Views: 12873

PostForum: SEFI General Discussion   Posted: Fri Apr 28, 2023 4:04 pm   Subject: Re: Main approaches for controlling the stiffness and damping of a structure
Replies by Er. Ron Hamburger

Why was linear time history response added as an alternative to linear response spectrum analysis? What are its anticipated advantages?

Linear time (response) histo ...
 
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