Approach span to its neighbouring inner spans, Civil Engineering

Assignment Help:

Question-Why is span length ratio of end span, approach span to its neighbouring inner spans typically about 0.75?

 

Answer-From aesthetic point of view, odd number of spans with reduce in length in direction of abutment is desirable. In addition, spans of equal length are found to be tedious. However, an arrangement of irregular span lengths is not recommended since it gives a feeling of disquiet.


From structural point of view, for a multi-span bridge with alike span length, sagging moment at mid-span of the end span, approach span is largest. In order to cut this moment, span length of an end span, approach span is designing to be 0.75 of inner spans.
However, ratio should not be less than 0.40 because of effect of uplifting at end span, come close to span support.

 


Related Discussions:- Approach span to its neighbouring inner spans

Correction for construction period, You are aware that construction of any ...

You are aware that construction of any type of structure takes sometime. Pressure due to the building will be applied gradually and not instantaneously. Excavation for the construc

What do you mean by internal fiction, Q. What do you mean by Internal ficti...

Q. What do you mean by Internal fiction? Absorptive materials have some elastic fibrous or porous structures that would be extended and compressed at the time of sound wave pro

Determine a cylindrical specimen of saturated clay, A cylindrical specimen ...

A cylindrical specimen of saturated clay, 4.5 cm in diameter, and 9 cm long, is tested in an unconfined compression apparatus. Search the cohesion if the specimen fails at an ax

Shear lag in typical box-girder bridge, Shear lag in typical box-girder bri...

Shear lag in typical box-girder bridge For multiple-cell box girders, there are normally two arrangements. First one is that independent cells are connected by their top flang

Cavities under structures., This is the title for my thesis for masters in ...

This is the title for my thesis for masters in structural engineering. Is it possible to make for me the literature review? I already have my references.

Define well steoning, Q. Define Well Steoning? It is the side wall of w...

Q. Define Well Steoning? It is the side wall of well foundation. It is built of masonry or cement concrete not less than M 10 grade, sufficient bond rods should be provided to

Cargo handling facilities, Cargo Handling Facilities: All water transp...

Cargo Handling Facilities: All water transport terminals require cargo handling facilities. Cranes of various sizes are used. In docks, traveling cranes are popular (Figure).

Gas welding be erected in upright position, Question Explain some reaso...

Question Explain some reasons why should acetylene gas cylinders used for gas welding be erected in upright position? Answer Acetylene gas is usually used for gas wel

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