What is multiple-cell box girder, Civil Engineering

Assignment Help:

Q. What is Multiple-cell box girder?

Multiple-cell box girder: cells connected by top flanges vs. cells connected both by top and bottom flanges

When the depth of a box girder bridge exceeds 1/6 or 1/5 of the bridge width then it's recommended to be designed as a single cell box girder bridge. Though if the bridge depth is smaller than 1/6 of the bridge width then a twin-cell or multiple cell is a better choice. Though even for wider bridges with small depths, the number of cells must be minimized since there isn't much improvement in transverse load distribution when number of cells of box girder is increased to three or more. 

For multiple-cell box girders there are usually two arrangements. First one is that independent cells are connected by their top flanges only while other one is that the cells are connected both at the bottom and top flanges. From structural point of view it's recommended to adopt the second arrangement. For the case of cells connected by top flanges only, their flanges are heavily stressed in transverse direction owing to flexure that can't be effectively distributed across the cross section.

2180_What is Multiple-cell box girder.png

Fig. Box girder with cells connected by top flanges and cells connected both by top and bottom flanges.


Related Discussions:- What is multiple-cell box girder

What is admixtures, Q. What is Admixtures? These are the substance whic...

Q. What is Admixtures? These are the substance which are added to the concrete to improve its qualities either its placing or in its subsequent performance. An admixture may be

#title., desirable properties in green concrete

desirable properties in green concrete

Major bridge and important bridge, Major bridge - Major bridge is one of wh...

Major bridge - Major bridge is one of which has a total linear waterway of 18 m or more for multiple span and total linear water way of 12 m or more for single span. Important b

Explain the inventory inspections - inspection of bridge, Explain the Inven...

Explain the Inventory inspections - Inspection of Bridge? These inspections are normally performed following new construction, modifications, or repair to establish as-built or

What is bore hole, What is Bore Hole In exploration of  area of  limit...

What is Bore Hole In exploration of  area of  limited extent  the borings should preferably be located near the comers of  the area. A minimum of three holes should be made un

What do you mean by plain elastomeric pads, Q. What do you mean by Plain el...

Q. What do you mean by Plain elastomeric pads? Plain pads are used for light or moderate loadings. Plain pads have a tendency to bulge under heavy loadings. In order to reduce

Estimation of loading carrying capacity, Question While designing mini...

Question While designing mini-piles , should strength of grout be disused during estimation of loading carrying capacity? Answer While designing min-piles, there will

Docks, DOCKS: Types of Docks Docks are artificial enclosures ...

DOCKS: Types of Docks Docks are artificial enclosures for the reception of ships. Three types of docks are found : (a)        Harbour Docks, or Wet Docks, which ar

Modes of transport, Modes of Transport Various Modes of Transport ...

Modes of Transport Various Modes of Transport There are several modes of transport which can be developed by a country. In every country, the principal modes exist ar

Find the size of the foundation required, A steam turbine with base 6 m × 3...

A steam turbine with base 6 m × 3.6 m weighs 10,000 kN. It is to be placed on a clay soil with c = 135 kN/m 2 . Find the size of the foundation needed if the factor of safety is to

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