Members failing : Not able to enter Fyld Design parameter in IS800 LSD ( STAAD Pro Connect)

Question

A part of my project is to make a PEB Industrial Shed using, built-up sections. I am just considering the primary frame in design. 
 Problem :My all members are failing. 
 As per my understanding, it is because it is not assigning Fyld, in IS800 LSD. I came to know this as I can manually enter it from the code, but not using the design menu. 
 I tried design using IS800, but I am not able to enter Kx and Ky there. 
 Kindly help, attaching my file. IS 2.1.STD

Abhisek M · Answer

In your file if you use Track 2 parameter then you will be able to see the detailed report. From that report you will find the members are failing as the flange is slender and STAAD does not allow bending design for slender flanges. 
 
 You may refer the below link to know more. 
 https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/31733/i-sections-with-slender-flanges-not-being-checked-for-flexure-as-per-is-800-2007 
 You may increase the thickness of flange or reduce the width of flange in such a way that it comes out of slender range as per table 2 of IS800:2007 code.

Members failing : Not able to enter Fyld Design parameter in IS800 LSD ( STAAD Pro Connect)

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