Steel frame of a one-storey production building - course project

Contents

Introduction

1. Source Data

2. Cross Frame Design and Calculation

2.1. Development of a communication system

2.1.1 Coverage Links

2.1.2 Links between columns

3. Frame Dimensions

3.1. Vertical dimensions

3.2. Horizontal dimensions

4. Determining Frame Loads

4.1. Constant and temporary load on the farm

4.2. Temporary frame loads

5. Frame Calculation

6. Calculation and Design of Rafter Truss

6.1. Source Data

6.2. Design lengths of truss rods

6.3. Fitting Cross Sections of Truss Rods

6.4. Calculation and Design of Truss Nodes

7. Calculation of crane beam

7.1. Load on crane beam

7.2. Determination of calculation forces

7.3. Select Beam Section

7.4. Selection of stiffening ribs

7.5. Calculation of connections of belts of crane beams with wall

7.6. Designing and Calculating the Beam Support Part

8. Production Building Stepped Column Calculation

8.1. Source Data

8.2. Defining Calculated Column Lengths

8.3. Sample section of the top of the column

8.4. Sample section of the bottom of the column

8.5. Operation node of crane beams

8.6. Column Base Calculation

List of sources used

Application

Application

Introduction

The concept of "metal structures" combines their structural shape, manufacturing technology and installation methods. The level of development of metal structures is determined on the one hand by the needs of the national economy, and on the other hand by the capabilities of the technical base: the development of metallurgy, metalworking, construction science and technology. Based on these provisions, the history of the development of metal structures can be divided into five periods.

Metal structures are used today in all types of buildings and engineering structures, especially if significant spans, height and loads are required. The demand for metal structures is extremely large and constantly increasing. The basis for meeting this need is the large volume of steel produced in the country, metal structures factories and specialized installation organizations equipped with advanced technology, specialized design organizations and research institutes.

Depending on the structural shape and purpose, metal structures can be divided into eight types: industrial buildings, large-span pavements of buildings, bridges and racks, sheet structures, towers and masts, frames of multi-storey buildings, crane and other movable structures, other structures.

The starting material for all structures is rolled metal, produced according to a single standard: sheet, angle, channel, I-beam, pipe, etc. All various structural shapes are assembled from this material.

All structures are united by one manufacturing process, which is based on cold metal processing (cutting, bending, hole formation, etc.) and the connection of parts into structural elements and complexes (assembly and welding operations).

Source Data

Span - 24 m;

Sections of elements - belts from paired angles;

Height on the support - 2250 (along the axes) mm;

The pitch of the columns is 12 m;

Crane lifting capacity - 200 t;

Crane rail elevation - 13.5 m;

The length of the building is -96 m;

Base concrete class - C12/15;

Steel brand - C345;

Construction site - Minsk;

Crane operation mode - 1K;

Coating type - Cold by run.

Cross Frame Design and Calculation

2.1 Development of communication system

The links ensure spatial immutability of the frame, stability of the compressed elements of the supporting frame and joint work of all structures. Communications perceive and transmit braking and wind effects on the foundation, provide the necessary installation conditions for the structure elements.

2.1.1 Coverage Links

The links between the trusses, creating a common spatial stiffness of the frame, ensure the stability of the compressed elements of the girder from the plane of the trusses, and the redistribution of local loads. The coating link system consists of horizontal and vertical links. Horizontal are located in the planes of the lower (Fig. 2.1) and upper (Fig. 2.2) truss belt. The elements of the upper belt of the rafters are compressed, so it is necessary to ensure their stability from the plane of the trusses. Roofing plate ribs and runs can be considered as supports preventing displacement of upper units from the plane of the truss provided that they are fixed from longitudinal movements by links .

To secure the plates and runs from longitudinal displacements, transverse ties are arranged along the upper girders of the trusses, which are preferably located at the ends of the workshop so that they provide spatial rigidity of the coating.

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