How to see Reinforcement details in Staad.pro?

After you run analysis you can either see in output or postprocessing.

• First method

As shown in figure below to see output u have to click on icon

OUTPUT FILE OF STAADPRO

You will see concrete design option on left click on that

BEAM REINFORCEMENT RESULT IN STAADPRO

You can see reinforcement on right side.

• Second method

or you can see in postprocessing also. Run analysis , go to postprocessing. Than click on beam or column whose reinforcement you want to see. small window will open. Click on concrete design there you can see reinforcement.

BEAM REINFORCEMENT IN POSTPROCESSING IN STAADPRO

Member Incidence command in Staadpro

Example of Member incidence command

1 1 3; 2 3 4; 3 4 2;

Above line indicates member number(1) , starting node (1), and ending node number (3).

member number(2) , starting node (3), and ending node number (4)

member number(3) , starting node (4), and ending node number (2)

separated by single spaces.

Unit Command in Staadpro

UNIT METER KN

The sixth line in editor defines the unit. Above line defines unit is in meter and KiloNewton.

You are allowed to input data and request output in almost all commonly used engineering unit systems including MKS1, SI2, and FPS3. 

In the input file, the user may change units as many times as required. Mixing and matching between length and force units from different unit systems is also allowed. 

The input unit for angles (or rotations) is degrees. However, in JOINT DISPLACEMENT output, the rotations are provided in radians. For all output, the units are clearly specified by the program.

How to apply Floor load in Staad pro?

When you apply a floor load to a slab panel, the program calculates the equivalent load and apply the load to the beams bordering the slab as a uniformly distributed load. You do not have to calculate the equivalent load manually and apply them to the beams.
The program will calculate the tributary area for these members and calculate the appropriate members loads. Floor load is used for two way distribution.

The following assumptions are made while transferring the area/floor load to member load:

• The member load is assumed to be a linearly varying load for which the start and the end values may be of different magnitude.
• These loading types should not be specified on members declared as MEMBER CABLE, MEMBER TRUSS, MEMBER TENSION, MEMBER COMPRESSION, or CURVED.

Floor load is used in situations where the basic entity (plate, solid or surface) which acts as the medium for application of that load, is not part of the structural model.

General Format
FLOOR LOAD

{ YRANGE f1 f2 FLOAD f3 (XRA f4 f5 ZRA f6 f7) { GX | GY | GZ } (INCLINED)

    YRANGE f1 f2 FLOAD f3 (XRA f4 f5 ZRA f6 f7) { GX | GY | GZ } (INCLINED)
  or
 YRANGE f1 f2 FLOAD f3 (XRA f4 f5 ZRA f6 f7) { GX | GY | GZ } (INCLINED)
 or
_FloorGroupName FLOAD f3 { GX | GY | GZ } (INCLINED) }

JOINT COORDINATE COMMAND SPECIFICATION IN STAADPRO

Example 1

JOINT COORDINATES

1 10.5 2.0 8.5

2 0.0 0.0 0.0

3 5.25 0.0 8.5 6 50.25 0.0 8.5

In this example, X Y Z coordinates of joints 1 to 6 are provided. Note that the joints between 3 & 6 will be generated with joints equally spaced from 3 to 6. Hence, joint 4 will have coordinates of 20.25 0.0 8.5 and joint 5 will have coordinates of 35.25 0.0 8.5.

These commands allow the user to specify and generate the coordinates of the joints of the structure. The JOINT COORDINATES command initiates the specification of the coordinates. The REPEAT and REPEAT ALL commands allow easy generation of coordinates using repetitive patterns.

General Format

JOINT COORDINATES (CYLINDRICAL (REVERSE)) (NOCHECK)

band-spec

i1, x1, y1, z1, ( i2, x2, y2, z2, i3 )

REPEAT n, xi1, yi1, zi1, (xi2, yi2, zi2,..., xin, yin, zin)

REPEAT ALL n, xi1, yi1, zi1, (xi2, yi2, zi2,..., xin, yin,

zin)

n is limited to 150

JTORIG xOrigin yOrigin zOrigin

band-spec = (NOREDUCE BAND)

Where:

NOCHECK = Do not perform check for multiple structures or orphan

joints.

Description

The command JOINT COORDINATES specifies a Cartesian Coordinate System. Joints are defined using the global X, Y and Z coordinates. The command JOINT COORDINATES CYLINDRICAL specifies a Cylindrical Coordinate System. Joints are defined using the r, q and z coordinates. JOINT COORDINATES CYLINDRICAL REVERSE specifies a Reverse Cylindrical Coordinate system. Joints are defined using the r, y and q coordinates.

JTORIG causes the program to use a different origin than (0, 0, 0) for all of the joints entered with this JOINT COORDINATES command. It is useful in instances such as when the center of cylinder is not at (0, 0, 0) but at a different point in space. The JTORIG command should be entered on a separate command line.

Basically after the joint coordinates are entered or generated, then the xOrigin, yOrigin, and zOrigin values are added to the coordinates. For example a cylinder could be generated about the Y axis then moved by this command to its proper place. To create multiple offset structural parts, enter additional JOINT COORDINATES commands, each one followed by its JTORIG command. 

STAAD USES TWO TYPES OF COORDINATE SYSTEMS

STAAD uses two types of coordinate systems to define the structure geometry and loading patterns. 

1. Global coordinate system
2. Local coordinate system

Global coordinate system

The Global coordinate system is an arbitrary coordinate system in space which is utilized to specify the overall geometry & loading pattern of the structure. 

Example of Joint Coordinates command in StaadPro

Example of Joint Coordinate command in editor is represented by

JOINT COORDINATES

1 0 0 0; 2 6.5 0 0; 3 0 5.4 0; 4 6.5 5.4 0

Here 1 represent joint number, and 0 represent x, y, z coordinate of joint separated by single space.

Similarly 2 is joint number, 

               6.5 is x coordinate , 

              0 is y coordinate and 

              0 is z coordinate.

What does input width command means in Staadpro?

If you open your Staad file editor, you will find fifth line having following information:

INPUT WIDTH 79

it shows allowable width of code line in the editor.

Calculation of UDL for 9" thk wall on beam for Staadpro?

Thickness of 9" thk wall is 230 mm= 0.23 m

Brick Density be 18 Kn/m3

Wall Height = 825mm =0.825 m (Note: here exclude depth of beam, it is being consider in properties of beam).

Uniformly distributed load for beam = 0.23 * 0.825 *18 = 3.42 Kn/m

Viewing node and beam numbers in staadpro

To view node and beam number, right click anywhere in drawing area.
Dialog box will appear.
In it choose Labels.

Turn the node points, node numbers and beam numbers on.

Than click OK.
The structure will display node points, node number and beam number.

Staadpro- Generating the model geometry

• First select add beam option given under geometry icon in menu bar. This will initiate a grid in the main drawing area as shown below.

 The directions of the global axes (X,Y,Z) are represented in the icon in lower left hand corner of the drawing area.

• Snap Node/ Beam Dialog box appear in the data area on the right side of the screen.

Linear tab :    is for placing the construction lines perpendicular to one another.
Radial tab:     it enables construction lines to appear in a spider- web style.
Irregular tab:  used to create grid lines with unequal spacing that lie on the global planes or on an inclined planes.

Staadpro-Structure Geometry and Coordinate System

Particular structure is an assembly of components such as beams, columns, slabs, plates etc. Typically, modelling of the structure geometry consists of two steps:

 

 -Identification and description of joints or nodes.

-Modelling of members or elements through specification of connectivity between joints.

Staadpro-Define Structure type

First define which type of structure it is:

Space type:

                 is the structure where the geometry , loading cause the structure to deform in all 3 global axes (X, Y and Z).

Plane type:

                   is the structure where the geometry , loading and deformation is restricted to global X-Y plane only.