DOUBLY REINFORED BEAM (PARTIALLY FIXED)Experiment No:-13

 

Experiment No:-13

 

DOUBLY REINFORED BEAM (PARTIALLY FIXED)

Aim:-

To draw the Doubly reinforced beam (partially

fixed) using AutoCAD software

Problem

The following are the particulars of a doubly reinforced

Clear span = 6.0 m

Size of beam = 380 X 760 mm

Wall thickness = 400 mm

Bearing on wall = 400 mm

Tensile steel:  5 nos. 20 mm ф with two bars bent up near support at l/7 distance. Bars are in two tires (3 bars straight in lower tier and 2 bars in upper tier are bent up)

Spacer bar: 20 mm ф @ 1.0 m c/c

Anchor bars: 2-12 mm ф

Side face reinforcement: 2-12 mm ф (on each face)

Stirrups: 8 mm ф 2 legged @ 250 mm c/c throughout

Draw longitudinal section and two cross section (one at mid span and other near the support).

Anchorage and curtailment of reinforcement may be adopted with standard values and any more data required may be assumed suitably.

Draw the following views to suitable scale.

1. Longitudinal section J/he beam showing reinforcement details.

2. Top and bottom plans showing arrangement of bars.

3. Cross sectional view of the beams at mid span and at supports.

4. Prepare a bar bending schedule.

 

 

 

 

 

 

Procedure:

1. switch on the computer

2. Open Auto CAD 2014

3. Setting units

( ii) set the unit as decimal & millimeter

4. Setting limits

5. Zoom – All

6. Using Line command Doubly reinforced beam

(partially fixed) are drawn.

7. using hatch command where our necessary

8. Dotted lines are drawn using line type.

Result: Thus the Doubly reinforced beam (partially fixed) are drawn using Auto CAD 2014 software

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