Bentley staad pro v8i Step By Step Procedure

Bentley staad pro v8i Step By Step Procedure: STAAD or STAAD pro is defined as Structural Analysis and Design Computer Program which is officially developed by Research Engineers International in Yorba Linda, CA. Its old version is Staad - III which is supported in Windows and it was used by lowa State University for educational purposes for civil and structural engineers.

Bentley staad pro v8i Step By Step Procedure

Design any type of model and share your design data with your design team with confidence using Bentley staad pro v8i. You can draw any type of complex designs with staad pro any where in the world with Bentley staad pro v8i with 80 International codes with confidence and perfection. STAAD OR (STAAD. Pro) is a structural analysis and designed computer program originally designed by Research Engineers International in Yorba Linda CA.

Bentley staad pro v8i Step By Step Procedure

The latest version of STAAD, Pro v8i  have detailed information of addition of changes made when compare to old version. Design any type of culverts, petrochemical plants, tunnels, bridges, and piles. Reduce delays and product cost designs to your clients with more accuracy. capabilities of staad. pro is analyze gravity and lateral load. Designing and analyze of complex or simple structures for a wide range of loading conditions including those by gravity such as dead and live loads, Including skip conditions, with combination of lateral loads including wind and seismic

Checking designs of cold formed sections. Design light gauge steel members using a comprehensive cold formed sections library with out need of using a separate- special purpose material.

 Features effecting the analyses and design engine

Eurocode 8 contains specific requirements and recommendations for building structures that are to be constructed in sesimic regions. These fundamentals requirements have been provided to ensure that structure can sustain the seismic loads without collapse and also-where required avoid suffering unacceptable damage and can continue to function after an exposure to a sesimic event.

Description:

a)  Structure Modeling:

 To perform the geometry checks per Eurocode8, STAAD.Pro must first calculate the center of mass for each defined floor. Specifying a response spectrum loading accomplishes this.

From modelling general-Load & Definition tab:

1. Select the load case where the EC8 sesimic response spectrum definition will be added.

2.Click Add... to open The Add new Load Items box.

3.Select Response spectra>Response Spectrum in the Load items list.

4.Choose EURO(EC8)-2004 from the code list.

5.Set Response Spectrum options.

6.Click Add to add the new response spectrum to the current load case.

b)Analysis:

All the analysis methods for design and evalution of the perfomance of a structure mentioned in Eurocode, as listed in following, have already implemented in STAAD.Pro

• Linear static (called "lateral force method")
• Linear model response spectrum analysis
• Non- Linear static analysis (push-over analysis)
• Non-Linear dynamic analysis (Time-history analysis)

c) Post Processing

The earth quake mode has been provided to the users to check the structure conforms to the basic geometric recommendations made in EC8. This mode will be activated if the analysis has been successful and if user has right privileges to access Ec8 module.  

Geotechnical Engineering Laboratory Manual pdf

Geotechnical Engineering Laboratory Manual pdf:  Geo technical is a branch of engineering concerned with engineering behavior of earth material. In  geotechnical engineering, soils are consider a three-phase material composed of rock or mineral particles, water and air. The voids of soil, the space in between mineral particles, contain water and air.

Geotechnical Engineering Laboratory Manual pdf

The engineering properties of soils are affected by four main  factors: The predominate size of  mineral particles, The type of mineral particle, the grain size distribution, the relative quantities of mineral, water and air present in soil matrix. Fine particles(fines) are defined as particles less than 0.075 mm diameter.

Geotechnical Engineering Laboratory 

Some of the soil properties are should analyze by the geotechnical engineers for designing earthworks, retaining structures, and foundation are: Unit Weight, Porosity, Void ratio, Permeability, Compressibilty, Shear strength, Atterberg limits.

Some of the Geo Technical laboratory experiments are

1. Determination of moisture content.
2. Determination of specific gravity.
3. Field density test.
4. Grain size analysis.
5. Determination of consistency limit.
6. Density index/Relative index.
7. Permeability test
8. Proctor test. 
9. Vane shear test.  
10. Direct shear test.
11. Unconfined Compression test.
12. Undrained Trixial test.
13. Consolidation test.
14. California bearing radio test.

                     DETERMINATION OF MOISTURE CONTENT

OBJECTIVE:

Determine the natural content of the given soil sample.

SCOPE OF THE EXPERIMENT:

We should know the natural moisture content in soil to learn about the all soil mechanics. The natural moisture in soil gives the state of soil in that field.

DEFINITION

The natural water content also called the natural moisture content is the ratio of weight of water to weight to the weight of solid in a given mass of soil. The ratio is expressed in percentage.

APPARATUS REQUIRED:

1. Non-corrodible air-tight container.
2. Electric oven, maintain temperature between 1050C to 1100c
3. Desiccator.
4. Balance of sufficient sensitivity.

PROCEDURE:

1. Clean the with lid dry it with and weigh it (W1).
2. Take specimen of sample in the container and weigh with lid (W2).
3. Keep the container in the oven with lid removed. Dry specimen to constant weight maintaining the temperature between 1050c to 1100c for a peroid varying with the type of soilbut usually 16 to 24 hours.
4. Record the final constant weigh (W3) of the container with dried soil sample. peat and other organic soils are to be dried at lower temp says 600c possibly for longer peroid.

Certain soil contain gypsum which on heating loses its water if crystallization. If suspected that gypsum is present in soil sample used for moisture content determination shall be dried at not more than 800C and possibly for longer time.

Record the observation.

RESULT: The natural moisture content of the soil sample is -----

GENERAL REMARKS:

A container without lead can be used. When moist sample is weighed immediately after placing the container and oven dried sample is weighed immediately after cooling a desiccator.

What is autocad Learn autocad computer-aided design applications and shortcut commands and Free download autocad Tutorial

Auto cad is created by a company called Auto desk. Where auto means automatic and cad means computer aided designing and drafting. It was introduced in 1982. It is developed and design by USA based company auto desk for designing and developing of drafting and modelling files.Users can draw both 2D drawing and 3D model files.Auto-Cad is most widely used technical and is used in various streams such as Architecture, Mechanical, Gis (Geographical information system) and electrical and electronic, multimedia etc.

What is autocad Learn autocad computer-aided design applications and shortcut commands and Free download autocad Tutorial

Auto-cad basically divided in to sections they are 1) auto cad 2d drafting & allocation

2) Isolated 3) 3D

What is autocad Learn autocad computer-aided design applications

It consist of two types of drawings two dimensional  and three dimensional drawing. In 2D dimensional drawing we can drawing in x- axis and y-axis. so in two-dimensional the plane visible only in two-dimensional only. In 3D we can draw a part in three planes In x direction, y-direction and in Z-direction. With the help of auto cad we can draw layouts of buildings, bridges, office infrastructures etc and we can edit the drawing dimension and the plan of drawings can be edit easily.This auto-cadd models used for designing aircraft's, manufacturing,buildings,trusses,bridges etc.,

Some of the advantages of auto-cad is reducing the design timing and producing effective proto- type  faster, can acquire highest quality of product and accuracy. Auto cad is used for wire frame modelling, surface modelling, solid modelling .

In Auto-cad we can give geometry,dimension,tolerance, surface finish, Material specification for a part easily and can be editable for feature use. It is a user-friendly. Drawing sheet formats in auto-cad some of them are Drawing sheet standards are

1. 210 MM X 297 MM -A4
2. 297 MM X 420 MM-A3
3. 420 MM X 594 MM -A2
4. 594 MM X 841 MM -A1
5. 841 MM X 1189 MM-A0

Saving formats of auto-cad files are .dwg format and .dwt formats.

 Some of the auto-cad formulas used for in drawing are

1.circle C enter

2.rectangle REC enter

3.line L enter

4. Erase E enter

5. Print/plot ctrl+p Enter

6. Undo U

7.Multi line Ml enter

8. Trim Tr Enter

9. Extend EX Enter

10.Offset O Enter

11. Move M Enter

12.Copy CO Enter

13. Stretch S Enter

14. Mirror MI Enter

15.Rotate RO Enter

16.Fillet F Enter

17. Chamfer CHa Enter

18. Array AR enter

19. Layer LA Enter

20. Text

21.Dim

22. Scale/sc Enter

23. Boundary hatch Bhatch/H enter

24.Hatch edit Hatch Edit/HE enter

This are some the short cuts used in auto cad to draw 2d drawings in autocad.