Example for beam flexure design, Civil Engineering

Assignment Help:

Example for Beam Flexure Design

Select the lightest W section for the simply supported beam shown below.  The beam length is 12ft.  The nominal loading is: wd = 4.0 kip/ft (including beam weight) and wl = 8.5 kip/ft.  Use grade 50 steel and assume lateral bracing is provided only at the ends of the section.

1823_Example for beam flexure design.png

Solution:

Load Factors are: 1.2 for dead load and 1.6 for live load as per ASCE 7 specifications (these are also shown in the concrete portion of the provided manual).

Wtotal = 1.2*4.0 kip/ft + 1.6*8.5 kip/ft = 18.4 kip/ft

L = 12 ft

Mu = WL2 / 8 = 18.4 kip/ft * (12 ft) 2 / 8 = 331.2 kip*ft

φMn = 331.2 kip*ft

Enter the chart with the moment needed and the unbraced length as shown below:

φMn =331.2, Lb = 12'

Answer : W18x55


Related Discussions:- Example for beam flexure design

Explain the departure of a line - transportation, Explain the Departure of ...

Explain the Departure of a line - Transportation Departure of a line is the distance that the line extends in an east or west direction. A line that runs towards east has a pos

Raised check rails for obtuse crossing, Raised Check Rails for obtuse cross...

Raised Check Rails for obtuse crossing In order to provide guided path way in throat portion of 1 in 8 1/2 BG obtuse diamond crossing, the check rails are raised by welding of

Define reinforcing steel - limitations of ultrasonic system, Define Reinfor...

Define Reinforcing Steel - Limitations of Ultrasonic System? The sound velocity measurement taken parallel to the reinforcing bars embedded in the concrete will be markedly hig

Steady and uniform flow, During steady and uniform flow through an open cha...

During steady and uniform flow through an open channel of uniform cross section, a person claims that the specific energy of the fluid remains constant. A second person claims that

Verify the total active thrust on the wall per lineal metre, A smooth backe...

A smooth backed vertical wall is 6.3 m high and retains a soil with a bulk unit weight of 18 kN/m 3 and φ = 18°. The top of the soil is level with the top of the wall and is horiz

Design of steel beam column with hot rolled steel built-up s, how to comput...

how to compute the compound elements particularly outstanding element of compression flange if 2-ismb300 are placed side by side

Couple, Properties of a couple

Properties of a couple

Estimating, a 45 cm deep roof beam is provided on 30 cm wall of a room size...

a 45 cm deep roof beam is provided on 30 cm wall of a room size 3.0m*5.0m . calculate the quantity of steel required in beam on percentage basis.

Determine the percentage of sand, A certain soil has 99% by weight finer th...

A certain soil has 99% by weight finer than 1 mm, 80% finer than 0.1 mm, 25% finer than 0.01 mm, 8% finer than 0.001 mm. Draw the grain-size distribution curve and determine the pe

Dams, types of dams

types of dams

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd