Necessity of reinforcement in precast concrete manhole units, Civil Engineering

Assignment Help:

Necessity of reinforcement in precast concrete manhole units

Precast concrete manholes are generally constructed by placing the bases of manholes firstly. Walls of precast manholes are formed by placing the precast concrete rings one on top of other up to the required height. Someone can notice that reinforcement used for resisting the lateral earth pressure and surface loads aren't considered in a number of designs. It is discussed in Concrete Pipe Association of Great Britain which analysis of soil pressures shows that standard unreinforced precast units are capable of resisting uniformly distributed pressures (for example loading condition in a manhole) down to a depth of 150m. If very great road traffic and side loads are encountered, an extra concrete surround of about 150mm may be provided.

109_Necessity of reinforcement in precast concrete manhole units.png

Fig: A precast concrete manhole

 


Related Discussions:- Necessity of reinforcement in precast concrete manhole units

Recognize the losses of prestress, Recognize the losses of prestress Re...

Recognize the losses of prestress Recognising the losses of prestress which take place after the prestressing OF concrete structural elements, it is to be appreciated that pres

Determine the final volume of the compacted soil, 30,000-yd 3 of banked so...

30,000-yd 3 of banked soil from a borrow pit is stockpiled before being trucked to the jobsite.  The soil has 28% swell and shrinkage of 18%.  The final volume of the compacted so

Retaioning walls, what are the uses of retaining wall?!

what are the uses of retaining wall?!

What is gravity flow, Gravity flow is fluid flowing because of the forces o...

Gravity flow is fluid flowing because of the forces of gravity alone and not to an applied pressure head. In the Bernoulli equation, the pressure term is omitted, and the height an

Find the youngs modulus of the rod, Find the Youngs modulus of the rod: ...

Find the Youngs modulus of the rod: A composite rod is made by joining a copper rod end to end with a second rod of different material but of same cross-section. At 25oC, the

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

Explain civil fe hydraulics and hydrologic systems, Explain Civil Fe Hydrau...

Explain Civil Fe Hydraulics and Hydrologic Systems When spills occur at grade on soils in areas where unconfined aquifers are present, remediation procedures to remove the poll

Extreme fiber stresses at the mid span section of the beam, Extreme fiber s...

Extreme fiber stresses at the mid span section of  the beam A pre-stressed concrete beam, of  cross section 300 mm x 500 mm and 8 m span, is pre-stressed with a parabolic tend

Plane table surveing, in plane table surveying which activity is done first...

in plane table surveying which activity is done first whether centering or levelling?

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