Search found 837 matches

by huffte
13 Nov 2019, 15:41
Forum: 05-Referencing and license issues
Topic: SeismoMatch used in scientific articles
Replies: 2
Views: 18

Re: SeismoMatch used in scientific articles

3 instances, for example: SeismoMatch: Tim Huff, 'Partial Isolation as a Design Alternative for Pile Bent Bridges in the New Madrid Seismic Zone', American Society of Civil Engineers, Practice Periodical on Structural Design and Construction, Volume 21, Issue 2, May 2016, https://doi.org/10.1061/(AS...
by huffte
13 Nov 2019, 15:25
Forum: 03-Analytical/modelling capabilities
Topic: analysis and results
Replies: 7
Views: 10748

Re: analysis and results

From the SeismoBuild Help System: 'SeismoBuild is a Finite Element package for structural assessment, capable of carrying out all the Code defined checks, taking into account both geometric nonlinearities and material inelasticity. . . . eigenvalue and pushover analysis are supported'. SeismoStruct ...
by huffte
14 Oct 2019, 23:45
Forum: 03-Analytical/modelling capabilities
Topic: mass in eigenvalue analysis
Replies: 1
Views: 80

Re: mass in eigenvalue analysis

You have flexibility in generating the system mass. The software permits you to choose the method used in generating the system mass in the 'Project Settings' --> 'Gravity and Mass' dialogue.
by huffte
14 Oct 2019, 23:40
Forum: 03-Analytical/modelling capabilities
Topic: eigenvalue analysis
Replies: 1
Views: 85

Re: eigenvalue analysis

The number of possible reasons for discrepancies is too large to detail here. I would suggest that you double-check to ensure that both programs are indeed modeling the exact same structure in terms of: (1) mass source (2) element densities (3) inclusion or exclusion of shear deformation in stiffnes...
by huffte
07 Oct 2019, 15:28
Forum: 02-Getting started with the modelling
Topic: Modelling tower
Replies: 9
Views: 5080

Re: Modelling tower

Hi Camilo. I am not sure what you mean by the "screen conformed by beams". As far as how to determine when instability occurs, I would say look at the hysteretic plots. For example plot tower tip displacement versus load factor in the post-processor. For a ductile structure, you will eventually see ...
by huffte
27 Sep 2019, 13:56
Forum: 02-Getting started with the modelling
Topic: Regarding adaptive pushover analysis
Replies: 10
Views: 9071

Re: Regarding adaptive pushover analysis

Try to push to 10 mm, just for an example. If you observe no inelastic behavior in the resulting hysteretic plots, the run again and try to push to 20 mm. If the building fails before it gets to 10 mm, then either you are finished and have identified the limit state of collapse. Or, you could run ag...
by huffte
18 Sep 2019, 00:02
Forum: 02-Analytical capabilities
Topic: PGA matching
Replies: 6
Views: 5964

Re: PGA matching

If indeed, you do wish to scale a record to a specific PGA, then you are correct and it is quite simple. Very seldom, if ever however, do design codes and specifications recommend or require records to be modified in this manner. Typically, a more realistic approach is to minimize mean-square-error ...
by huffte
17 Sep 2019, 15:02
Forum: 03-Analytical/modelling capabilities
Topic: Push-over with initial displacement
Replies: 3
Views: 146

Re: Push-over with initial displacement

Hi Hanggara. Two methods come to mind. I am sure there are others. But I will offer up the following: 1. Create the model in the displaced geometry. For example, if the roof nodes have a 3 inch offset due to damage, then create the nodes 3 inches from their ideal location. This method has the disadv...
by huffte
14 Sep 2019, 19:21
Forum: 02-Getting started with the modelling
Topic: Modelling tower
Replies: 9
Views: 5080

Re: Modelling tower

Hi camilocorrea. I looked the model over this weekend and couldn't identify any problems. I'm not sure what you are trying to simulate. But the loads are enormous. Shear failures are indicated in the performance criteria at a vertical load of about 59,000,000 pounds and the maximum attained load is ...
by huffte
11 Sep 2019, 13:33
Forum: 03-Analytical/modelling capabilities
Topic: Advtantage of Modified IMK curve of BWBN Curve
Replies: 2
Views: 125

Re: Advtantage of Modified IMK curve of BWBN Curve

As to the advantages and disadvantages of each, I cannot fully attest. However, I believe you will find that the 'Smooth' model in SeismoStruct effectively corresponds to the BWBN model to which you refer. So both options are actually available in SeismoStruct. Best of luck in your work.