Does CSI SAFE program take into account the in-plane force from earth pressure in the analysis?

There is a building with 5 basement levels. Top-down sequence is going to be applied. This deep excavation is modeled using Plaxis software. The basement RC slab are used as horizontal strut to...

09 October 2017 7,511 3 View

Moment capacity of shear wall which have spandrel?

Now, I need to calculate the section capacity of this shear wall. For shear, the shear capacity is sum of 2 parts of piers. However, for moment, it is not like that. If I consider it is as a gross...

02 March 2016 7,067 10 View

How can I specify acceptance strains of concrete and steel materials for immediate occupancy, life safety and collapse prevention levels?

09 October 2015 5,546 4 View

Why ASCE 7 requires that the design base shear determined using MRS is not less than 85 percent of the base shear determined using ELF?

08 September 2015 9,819 0 View

How do we know residual strength of concrete and steel rebars?

How do we know Residual strength of Concrete and Steel rebars? For example: Steel Grade 60, and Concrete f'c=28 MPa in American standard.

08 September 2015 3,432 3 View

How do they calculate Deflection amplification factor in ASCE 7 standard?

How do they calculate Deflection amplification factor, Cd, in ASCE 7 standard?

08 September 2015 480 0 View

How do we define Response Spectrum Functions in different damping ratios in ETABS?

In ETABS, I defined Response Spectrum Functions in UBC97, ASCE 7-10 and Eurocode 8-2004 types, howerver these Response Spectrum Functions use only 5% damping ratio. When I change the damping ratio...

06 July 2015 5,308 9 View

Why is there a difference between natural period of ETABS model and the one of PERFORM 3D model?

I modelled a building (Dual shear wall/frame building) by using ETABS and PERFORM 3D with the same meshing. However, I got the difference between natural time period of ETABS model and the one of...

05 June 2015 7,121 12 View

How can I determine the parameters of concrete material in PERFORM 3D software?

In the attached picture, there are Trilinear Relationship and related parameters of concrete material in PERFORM 3D software. How to determine these parameters (compression stress FY, FU;...

04 May 2015 8,692 4 View

How do engineers calculate Reduction factor in the seismic code? Is there any method to determine Reduction factor without Pushover or NLRHA?

01 February 2015 7,199 3 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View