Reinforced concrete frame of one-storey industrial building

Contents

Contents

Source Data

Arrangement of single-storey industrial building frame with bridge crane

1.

Selection of structural elements of the IPF frame

1.1.

Columns

1.1.

Fachwerk columns

1.1.

Rafter structure

1.1.

Coating slabs

1.1.

Crane beam

1.1.

Curtain Panels

Cross Frame Layout and Load Collection

2.

Collection of loads on the transverse frame

2.1.

Constant loads

2.1.

Temporary loads

Static BDR and Frame Calculation

Column Design

List of literature used

Source Data:

Pitch of columns in longitudinal direction, m

12

Number of spans in longitudinal direction, m

7

Number of spans in transverse direction, m

2

Height to bottom of rafter structure, m

13,2

Type of rafter structure

BDR

Span of rafter structure

18

Crane lifting capacity

10

Concrete class of columns

B40

Concrete class of trusses

B35

Class of non-stressed reinforcement

A500C

Class before. of stressed reinforcement

K1500

Type of roof structure

1

Type of curtain panels

PSYA

Wall panel thickness, mm

300

Projected Column Axis

B

Column Design Section Number

1

Ambient humidity

80

Level of responsibility of the building

IІ

City of Construction

Saratov

Terrain type (for wind)

B

Arrangement of reinforced concrete frame of one-storey industrial building with bridge crane

1.1. Select structural elements of the IPF frame.

1.1.2. Fachwerk columns.

Installation of flyworks columns is provided at end walls to receive loads from end panels. Depending on the elevation of the top of the rafter structure, a column is assigned: KF-132

1.1.4. Coating plates.

The coating plate is assigned based on the pitch of the columns of the building in the longitudinal direction - PPM - 120.30, where:

PPM - ribbed coating plate;

120 - nominal length of the plate, dm;

30 - nominal width of the plate, dm.

The thickness of the roof (according to the type 5 task) is 140 mm.

1.1.5. Crane beam.

The crane beam is assigned based on the pitch of the columns of the building in the longitudinal direction.

BOD - 120, where

BOD - crane beam;

120 is the nominal length of the beam.

1.1.6. Curtain panels.

As per the assignment, external walls are designed from prefabricated PXIA 300 curtain panels made of concrete on D800 density grade porous aggregate, 300 mm thick. The dimensions of glazing are assigned taking into account the lifting capacity of bridge cranes. Overall dimensions of wall panels are assigned according to individual assignment taking into account unified dimensions.

For longitudinal walls: PSYA 300-120, where:

PSYa - the panel wall with cellular filler;

240 - nominal panel thickness, mm;

120 - nominal panel length, dm.

For face walls taking into account a binding of the bearing columns to marking axes of the building: PSYa-300.

Cross Frame Layout and Load Collection

2.1.Assembly of loads on the transverse frame.

The transverse frame of a single-story frame industrial building experiences constant loads: from the own weight of the coating and columns, crane beams, etc., and various time loads: from snow cover, wind pressure, vertical and horizontal pressure of bridge cranes.

Design of rafter structure. Gable lattice beams BDR18

4.1. Designing a grid gable beam.

The beam consists of upper and lower belts and struts. The lower belt is pre-stressed, which eliminates the appearance of excessive deflections.

Designing an Extracentrically Compressed Solid Column

Determination of the main combinations of calculated forces in the section 1-1 of the column along the axis B. Since the values ​ ​ of bending moments in the section 1-1 are all of the same sign, symmetrical reinforcement is taken in the column.

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