Week 1 Challenge

QUESTION:-

1. 1. Write the steps involved to upload a .std file through web mail?
2. Name the different materials that can be designed using STAAD Pro.
3. Is it possible to capture images in STAAD Pro? If yes how?
4. Name the three ways by which you can create a model.
5. Write the steps followed to assign properties in a model.

2. 1. Name any six design parameter involved in RCC design.
2. What are the different cursor types available in STAAD Pro?
3. How will you generate different views for a model? State the steps involved.
4. Explain the procedure to define a “Simply Supported” condition in STAAD Pro
5. Name any five topics that you will include while creating DBR.
6. Describe the term “Multi material design” of STAAD Pro.

3. 1. Name the structure systems in STAAD Pro? Explain each system?
2. Explain the coordinate system adopted in STAAD Pro software.
3. Elaborate DBR and its uses.
4. Explain the different types of analysis options in STAAD pro.
5. Explain the difference between Fixed and Fixed But condition.

Practical
1. Create a STAAD Model with the following Specification
a. A beam of span 16m
b. Support : Fixed on one end and Roller support(Horizontal) on the other end
c. A point load of 50 kN at the mid-point
d. Draw SFD and BMD using software

ANSWER:-

1.)

1

2

Different materilas that can be design using STAAD pro are

• concret
• aluminium
• steel
• and stainless steel.

3

YES

open the page whichever page you want to capture image and select capture Image from

4

select the new Model and select New Project

1. Open Structure Wizard and start creating new project
2. Open building planner mode and start creating Project

5

• GO to the analytical Model
• 
• Go to properties

• Go to define and Add properties

2.)

1

six design parameter involved in RCC design are

1. Section code book.
2. Grade of concrete .
3. Grade of Steel.
4. Maximum Size of Reinforcement.
5. Minimum Size of Reinforcement.
6. Number of bars.

2

Different cursor types available in STAAD Pro are

1. Node Cursor.
2. Beam Cursor.
3. plate Cursor.
4. Solid Cursor.
5. Geometry Cursor.
6. Member Cursor.
7. Plate and Solid Cursor.
8. Load Cursor.

3

1. You need to prepare the geometry tab.
2. Then specify the properties tab.
3. Then assign the materials tab.
4. Run Design Tab.
5. Assign specifications tab and run analysis.

4

5

1. Introduction.
2. Design Code.
3. Materilas For Sub Structure And Super Structure.
4. Cover of Reinforcement.
5. Loads.
6. Design reports.

6

• After analysis a structure has to be designed to carry loads acting on it considering a certain factor of safety.
• In India structures are designed by using various Indian codes for both concrete and steel structures.
• The design in STAAD.Pro supports over 70 international codes and over 20 U.S. codes in 7 languages.
• After designing the structure it is again analyzed and results of analysis for each beam and column is shown in the output file

3.)

1

2

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.

Conventional Cartesian Coordinate System - This coordinate system is a rectangular coordinate system (X, Y, Z) which follows the orthogonal right hand rule. This coordinate system may be used to define the joint locations and loading directions.

Cylindrical Coordinate System - In this coordinate system, the X and Y coordinates of the conventional Cartesian system are replaced by R (radius) and 9 (angle in degrees). The Z coordinate is identical to the Z coordinate of the Cartesian system and its positive direction is determined by the right hand rule

Reverse Cylindrical Coordinate System - This is a cylindrical type coordinate system where the R- O plane corresponds to the X-Z plane of the Cartesian system. The right hand rule is followed to determine the positive direction of the Y axis.

Local coordinate system - A Local coordinate system is associated with each member or element) and is utilized in MEMBER END FORCE output or local load specification. Each axis of the local orthogonal coordinate system Is also based on the right hand rule. Note that the local coordinate system is always rectangular. A wide range of cross-sectional shapes may be specified for analysis. These include rolled steel shapes, user specified prismatic shapes etc..

3

DBR (DESIGN BASIC REPORT) shall mean a planning report that documents the major design criteria and includes recommended project elements, planning level drawings, preliminary schedules, and cost estimates.

4

5

When the FIXED or FIXED BUT type of support is specified, for those degrees of freedom which are to be treated as fully restrained, STAAD assumes the displacements to be known quantities whose value is zero. Hence, those degrees of freedom are not considered for the stiffness matrix, and their value is not calculated. (For the FIXED BUT support type, if any degrees of freedom are assigned a spring using the KFX thru KMZ terms, those are treated as unknowns and their displacements are calculated).

When the ENFORCED or ENFORCED BUT type of support is specified, for those degrees of freedom which are to be treated as restrained, STAAD assigns a spring with a very high spring stiffness translational stiff springs for translational restraints, and rotational stiff springs for rotational restraints. Those degrees of freedom which are free to displace are assigned springs of zero stiffness. Hence, for all the 6 degrees of freedom at such supports, the displacements are calculated. The ones which have a stiff spring will end up having a negligible displacement, and those with zero-stiffness-springs will have a displacement based on the structure geometry, properties and loading.

The following are some of the ramifications of using the two support types

1. Even though the two types follow different approaches, the end result - joint displacements, member forces and support reactions - should be the same.
2. Since the number of unknowns is less in the former method compared to the latter, the time required to compute the results will also be comparatively less using the first method. If the model is large, there may be a significant reduction in time required to perform the analysis.
3. For supports directly attached to plates or solids, if the supports are subjected to artificial displacements (called sinking support or support settlements), the effects caused by such displacements can be computed only if the ENFORCED type of support is used. In STAAD, support displacement loads cannot be applied to such models when the FIXED type of support is specified.
4. For the ENFORCED BUT type, there is no provision to specify a spring constant. The only choices, which are built into the program, are - zero stiffness or very high stiffness. So, if a user plans to assign his/her own spring constant, the FIXED BUT type is the only choice.
5. If the engineer plans to analyze a model in which support conditions change depending on the loading condition (hence he/she specifies the support command multiple times in the model), there are a few restrictions on how the supports must be assigned. These are mentioned in Section 5.38 of the Technical Reference manual where the CHANGE command is described. The ENFORCED support may offer a way to overcome some of those restrictions.

PRACTICAL

Aim:-

To create a STAAD PRO model following given procedure.

Procedure:-

.

Conclusion:-

SFD and BMD of the above beam is shown.

Result:-

SFD and BMD of the above beam is shown.