AmQuake Forums

Calculate period of the idealized SDOF system

null@example.com (ABserklaž) — Mon, 14 May 2012 10:46:50 +0000

Hello,
could you please answer me the following questions:

Is it posible and where in AmQuake to calculate period of the idealized SDOF system T* , and how to see it?
Is it posible and where to calculate period of real 3d geometry system, and how to see it?

Thank you!

Height of piers and seismic verification condition

null@example.com (pannkaka) — Wed, 11 Jan 2012 11:20:39 +0000

Hello,

could you please answer me the following 2 questions:

- why is the seismic verification for ULS preformed through the check d(n)>=pd*dtULS. Is this according to EC? In EC I cannot find any additional parameter pd=1,5.

- which height of piers is taken into account for the seismic analysis. For example, if I have a pier situated between 2 windows, is the height of the pier reduced or is its height taken as the elevation height?

Thank you!

Prototype vs. model

null@example.com (robb) — Wed, 30 Nov 2011 14:20:51 +0000

Hello!

One quick question. Is AmQuake intended to test only prototypes i.e. full size structures, or is it suitable for models as well e.g. “full size / 5”

Mesh generation

null@example.com (concordia2) — Sun, 26 Jun 2011 16:17:51 +0000

When the option "Ceilings without bending stiffness" is inactive i.e. when the program takes the bending stiffness i account, how is the stiffness calculated and taken in the calculation for different nodes?

DLS output explanation

null@example.com (BogdanDum) — Thu, 02 Jun 2011 04:01:54 +0000

I'd like to have documented the "CF_damage" and the "Damage status" (together w/ its options: SD, FD, MV, M, V) in the View menu. Could you please quickly point me to some links or dox explaining what are these about (eventually how is the software calculating these)?
Thanks.

Target displacement restriction

null@example.com (concordia2) — Mon, 30 May 2011 21:56:26 +0000

In EC 8 Annex Condition 6 says:
dt<3det
When the program calculates the target displacement, the analysis isn't stoped after reaching this condition. In some examples I made the model fit the ag requirement although condition 6 was not met. Any info would be helpful
Thx in advance

Import DXF

null@example.com (navi33) — Mon, 30 May 2011 17:49:35 +0000

In version 1.20 I've discovered some problems with DXF import. The problem is that "Import DXF" dialog can't accept previously defined materials. This problem appears when selecting previously defined wall material and parapet material.

It is possible to use the option to import new material properties and they are accepted, but you need to import new material property every time you use "Import DXF" so you end up with at least 5-6 material properties for one type of wall.

I've been using almoust every version of AmQuake so far, and "Import DXF" dialog worked correctly in every version except version 1.20. I hope that it will be fixed soon.

Coef. of cracked wall stiffness

null@example.com (concordia2) — Mon, 16 May 2011 13:02:09 +0000

Coef. of cracked wall stiffness = This parameter defines the reduction of initial wall stiffness due to the tensile cracking. The recommended value is 0.50 (see EN 1998-1, Section 4.3.1 (7)).

How is this parameter taken into account during the calculation. Is the cross section stiffness automaticly reduced to 1/2 in the begining or is this factor included somehow else?

Calculation output

null@example.com (navi33) — Thu, 24 Mar 2011 00:09:29 +0000

Is it possible to get the values of:
1. Gamma - Transformation factor between MDOF and SDOF
2. m_eq - Equivalent mass of SDOF

I have been searching trough the calculation output and software documentation.
It looks like that there is no way of getting these crucial values from the resources currently available.
I need Gamma and m_eq values to round up the presentation of Amquake's pushover analysis for my project.

Regards

Old version validation examples

null@example.com (concordia2) — Thu, 17 Mar 2011 00:15:39 +0000

Hi i tried to run the provided validation examples in the new version of amquake and the results differ a lot including some examples not even reaching the target displacement, whereas in the old version they had ag resistance 0,3
Thx in advance

Print statement issue

null@example.com (concordia2) — Tue, 07 Dec 2010 15:24:35 +0000

Hi
every time when i try to print the results into rtf file with a model that has more then one floor the program crashes. This happens when i try to print the dispacements of the ULS step and when I include any of the results with all steps included. Is there a way to get the results into a .txt file or any other form that can be used for modifying?

Upgrade policy

null@example.com (hlaci) — Sat, 24 Jul 2010 01:03:03 +0000

Hi,

I would like to know what your upgrade policy is.

Are both the minor and major upgrades free, or do you charge extra for major upgrades? If so, how much will you charge for major upgrades?

Thank you.

Data input question

null@example.com (hlaci) — Tue, 13 Jul 2010 19:34:16 +0000

When introducing wall elements, should these elements intersect or should they only be tangent?

Welcome to AmQuake forum

null@example.com (jcervenka) — Thu, 01 Jul 2010 09:06:47 +0000

Dear AmQuake users:

I would like to welcome you to this newly established forum for exchaging information, comments and experiences with our new software AmQuake.

AmQuake program can evaluate a masonry building regarding its seismic safety. It is based on EC8, EC6 and EC2 taking into account national annexes of 10 European countries. It is using a pushover analysis combined with equivalent frame method to evaluate the structural safety during earthquakes.

We encourage you to submit your comments, questions or experiences into this forum so that other engineers can use it as an additional source of usefull information about the program.

We sincerely hope that you will like our program, and we are looking forward to you suggestions for future improvements.

With best regards

Jan Cervenka
CEO Cervenka Consulting, LTD,
Na Hrebenkach 55
Prague, Czech Republic

Buying licence ?

null@example.com (jure1503) — Wed, 23 Jun 2010 11:44:45 +0000

I would like to buy a licence of this new program. Who should I pay money for licence?

I hope that this program works without big or importand mistakes or bugs?