# How do you define LY and LZ in STAAD?

## How do you define LY and LZ in STAAD?

LY and LZ is effective length along local Y and Z axis respectively, which length is STAAD use to find Slenderness of member. UNB and UNT is unsupported length of the member bottom and Top respectively, which length is STAAD use to calculate bending capacity.

### What is the Indian design code for steel in STAAD pro?

Code Steel Concrete
British BS5950 BS8110
Frensh CM 66 Ad 80 B.A.E.L
Indian IS800 IS456

Bentley Technical Support Group. How does one change the value of the yield strength of steel? FYLD is one of the items specified as parameters for steel design. The STAAD Technical Reference manual and International Design Codes manual contain information on specifying parameters for steel design.

What is the default density of concrete in staad?

there is no option to directly define the concrete density. However the software internally uses a value of about 150 lb/ft3 as the density for concrete.

## What is ky and kz in STAAD?

STAAD includes Ky, Kz, Ly, Lz ,MAIN and TMAIN parameters under design. These parameters govern the slenderness calculation and allowable axial compressive stress of a member in design. Ky and Kz are the effective length factor along Y and Z axes respectively.

### What is ky and kz in STAAD pro?

The parameters LY, LZ, KY and KZ are used for computing the allowable stresses in axial compression. They are used in calculating Ky*Ly/ry and Kz*Lz/rz. The default value of Ly and LZ is the member length. The default value of KY and KZ is 1.0.

How do I activate my design code on staad pro?

Steps to Reproduce

1. Go to Design page inside Modeling Mode.
2. Select Steel and choose EN 1993-1-1:2005 as Current Code.
3. Click on Define Parameters.
4. Select any parameter and click on Add.

What is the density of steel we are using staad design?

Materials properties assigned in Modeling of Steel Structure To define the material of the composite beams, using define menu sections are created. In that dialogue box we get a steel section for steel beams,and steel column. To assign slab as per required dimension. steel density is 78.5kN/m3.

## How does staad pro calculate bending moment?

To view the Bending Moment Diagrams, select the Beam page from the left side. From the top menu bar, choose Results – View value. Under Ranges, choose All. (The All button means the Bending moment diagram will be displayed for all members.)

### How to design steel structures in Staad pro?

One of the major steps in design of steel structures in STAAD Pro is defining the Design Parameters. Two types of parameters we need to define while designing steel structures. One set is used for strength design of structures and another for serviceability design.

What are the parameters we need to define while designing steel structures?

Two types of parameters we need to define while designing steel structures. One set is used for strength design of structures and another for serviceability design. In strength design, we need to define the effective lengths of structural members with respect to their local bending axes as one of the parameters.