Search found 8 matches

by ESTRUCTO
10 Jun 2025, 22:46
Forum: 03-Analytical/modelling capabilities
Topic: Incremental Dynamic Analysis (PGA vs Drift)
Replies: 5
Views: 5135

Damping used in Incremental Dynamic Analysis (IDA)

Hi.

I am performing an IDA analysis to a 4 levels regular plane concrete frame. I have an issue to considering the damping that I must use. I have defined infrmFBPH Element Class to beam and columns elements, but I note that there is a DAMPING button to define the values. After, in the SETTINGS ...
by ESTRUCTO
24 Oct 2024, 17:05
Forum: 02-Getting started with the modelling
Topic: Loads
Replies: 5
Views: 10665

Re: Loads

Dear Zoi, the information below is the error message:

Estimated size of output file: 3971 kB


Permanent Loading
-----------------------------------------

LF= 0.00000, LF_incr= (Iter:128 => Prd_Ite)
LF= 0.00000, LF_incr= (Iter:128 => Diverge)
LF= 0.00000, LF_incr= (Iter:131 => Prd_Ite)
LF= 0 ...
by ESTRUCTO
17 Oct 2024, 16:03
Forum: 02-Getting started with the modelling
Topic: Loads
Replies: 5
Views: 10665

Re: Loads

Hi.

I have modeled 6 floor 2D concrete frame, and I have to execute an Adaptative Pushover. I have assigned the Dead Loads and Live Loads as ELEMENT LOADS, but when the RUN start, the program is not recongnizing this loads and an error message appears. There is no LF factor (0.00), LF increment (0 ...
by ESTRUCTO
17 Oct 2024, 14:56
Forum: 02-Getting started with the modelling
Topic: Loads
Replies: 5
Views: 10665

Re: Loads

Hi.

I have modeled 6 floor 2D concrete frame, and I have to execute an Adaptative Pushover. I have assigned the Dead Loads and Live Loads as ELEMENT LOADS, but when the RUN start, the program is not recongnizing this loads and an error message appears. There is no LF factor (0.00), LF increment (0 ...
by ESTRUCTO
08 Apr 2024, 17:45
Forum: 02-Getting started with the modelling
Topic: how to model chord rotation for plastic hinges
Replies: 11
Views: 18598

What hysteretic curve us used with infrmFBPH?

Hi.

I want to use the infrmFBPH model for concrete members, but I do not know what hysteretic curve is used by seismostruct to define the plastic hinge F-D curve (MIMK, for example). I know that infrmDBPH element class uses by deffault MIMK_bilin curve.

Thanks.
by ESTRUCTO
31 Oct 2023, 16:48
Forum: 02-Getting started with the modelling
Topic: Element Classes
Replies: 4
Views: 8603

Re: Element Classes

Hi,

I am verifying the differences between element classes, and I have a question. ¿Can I use the elfrmH element for plastic hinges of beams and columns for a Adaptative Pushover Analysis, instead infrmFBPH or infrmDBPH? The definition is very extensive, but the user can obtain all parameters from ...
by ESTRUCTO
18 Jul 2023, 01:59
Forum: 02-Getting started with the modelling
Topic: Define yielded rebar in materials
Replies: 11
Views: 22263

Re: Define yielded rebar in materials

Thanks a lot.

ASCE 41-17 (10.2.2.1.2) indicate "Nominal material properties, or properties specified in construction documents, shall be taken as lower-bound material properties. Corresponding expected material properties shall be calculated by multiplying lower-bound values by a factor taken from ...
by ESTRUCTO
14 Jul 2023, 16:27
Forum: 02-Getting started with the modelling
Topic: Define yielded rebar in materials
Replies: 11
Views: 22263

ASCE 41-17 Expected Strength Materials Properties

Hi.

I want to compare a SAP2000 Pushover example analysis with the same example using SEISMOSTRUCT Pushover analysis, but I am not really sure how to introduce the ASCE 41-17 Table 10-1 FACTORS TO TRANSLATE LOWER-BOUND MATERIAL PROPERTIES TO EXPECTED STREGTH MATERIAL PROPERTIES:

Concrete: 1.50 ...

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