Kursach Stroimeh

Contents

Contents

Introduction

1. General information about goat cranes

2. Select the primary geometric dimensions of the truss

3. Examination of geometric stability of truss

4. Determination of forces in panel rods from constant action

loadings

5. Draw Influence Lines

6. Determination of total calculated forces in rods of specified

panels

7. Select Rod Sections

8. Calculation of welded joints

9. Determining the greatest bending moment in the vertical

planes and cutting force

List of used literature

Paper

Explanatory note 25 pages, 8 figures, 4 tables, 6 sources.

In the course project, a goat crane bridge was designed.

The purpose of the project is to develop a goat crane bridge with specified parameters.

In the process of operation, analysis of existing structures of goat cranes was carried out.

Calculations of the steel structure of the goat crane bridge were made and an assembly drawing of the goat crane bridge was developed.

Introduction

When performing this course work, the main truss of the goat crane is calculated and designed, its analysis is carried out, ways are determined to improve and improve the design and maintenance of this mechanism, taking into account modern development traditions. During the course work, the necessary skills of engineering calculations of metal structures, design and layout of assemblies and panels of trusses are acquired. Calculations of this truss are carried out using the method of limit states. When designing the truss, special attention was paid to metal saving and the processability of the design.

Conclusion

As a result of the course project, the goat crane bridge with the specified loads was calculated. Geometric parameters of the goat crane bridge were determined (number and length of panels; truss height).

- lines of force influence in truss rods are built;

- the greatest forces in the rods are determined;

- rods are selected;

a maximum bending moment in the vertical plane of 1070.9 N m and a cutting force of 16.8 kN is determined;

- the beam has been checked for strength.

An assembly drawing of the gantry crane truss, a specified truss panel and a panel welded assembly was made, in which the largest number of rods in the A1 format converges.