• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer
Civil Sir

Civil Sir

A to Z Civil Guides

Search Here...


  • Brick
  • RCC
  • Tile
  • Cement
  • Concrete

Why depth of beam is greater than its width?

Why depth of beam is greater than its width? Hi guys in this article we know about why depth of beam is more than its with and how how depth of beam is correlate with its width.

As we know beam is flexural member possesing compression and tension, compression in upper chamber of concrete fibre and tension in in bottom Chamber of concrete fibre. More quantity of steel reinforcement is provided in bottom Chamber of concrete fibre in tension zone and comparatively less quantity of steel reinforcement is provided in bottom Chamber of concrete fibre in compression zone.

Why depth of beam is greater than its width?
Why depth of beam is greater than its width?

Actually a beam design is best if there is more material at the top and at the bottom with a vertical piece connecting the top and bottom. This is because the bottom of a beam is in maximum tension and the top in maximum compression at midpoint of span. The connecting vertical piece resists shear which occurs mainly toward the support points. Therefore the steel I beam exists for this reason. The best wood beams are also shaped like an I beam (sometimes a plywood vertical with 2×4 at top and bottom). In concrete, steel reinforcing rods are mainly in the bottom to resist tension, but in other locations for different load conditions.

◆You Can Follow me on Facebook and Subscribe our Youtube Channel

You should also visits:-

1)what is concrete and its types and properties

2) concrete quantity calculation for staircase and its formula

Why depth of beam is greater than its width?The major function of beam is to resist bending moment generated by applied transverse load or to resist the deflection which generates again high Moment on beam. Increase bending moment and deflection in overcome by increasing depth of beam and providing more quantity of steel in in bottom tension zone of concrete fibre. So this applied Moment is resisted through the special property of beam “EI” which includes type of material (Modulus of Elasticity) and dimensions of beam (width & depth).

Now in general all beams are designed as rectangular type due to simple, rapid construction and provides good support to the slab.

The various type of rcc slab load like live load dead load runs horizontally from all sides of slab and transversely applied on rcc beam, now RCC beam structure vertically transferred all the load acting on it to column and column and transfer it’s all building structure load safely to bed of soil.

Major load in a structure is mostly the Dead Load ( self load ) which covers minimum roughly 60% of the total load and it is always in downward direction. So to resist the Moment (induced by the loading), modulus of elasticity property comes into picture and as material is fixed so Modules of Elasticity(E) does not change. So to resist large moment caused by downward load , Moment of Inertia (I) value has to be increased which is dimensional property of beam.

Moment of inertia is the second moment of Area which means that to increase the MoI Either the Area to be increased or the distance from the Neutral Axis to the center of the Area is to increased. As distance from the Neutral Axis to the center of the Area is squarly proportional to the MoI, it will be easy and economical to increase the distance. ( MoI = A*r^2)

Why depth of beam is greater than its width? to resist the bending moment caused by transverse loading acting on beam, depth of beam (parallel to the loading plane) is to be increased. Increasing width can also provide large MoI but that will not be economical to do. That’s why beams have depth more than width.

More Important Posts:―

  1. How much steel is required for 1500 sq ft house
  2. Cement consumption in plaster 1:6 for 1m2 area
  3. What size lvl to span 26 feet
  4. How to calculate no of bricks, cement and sand for 1m3 brickwork
  5. How much sand do i need for a 12×12 or 10×10 patio

Primary Sidebar

Categories

  • AAC block (19)
  • Asphalt (1)
  • beam (9)
  • board (2)
  • Brick (61)
  • Cement (105)
  • Cement test types (2)
  • Compressive strength (10)
  • Concrete (294)
  • deck (6)
  • door (1)
  • drywall (20)
  • feet (1)
  • flooring (17)
  • gallon (1)
  • garage (2)
  • garage door (2)
  • gravel (6)
  • joists (8)
  • Land measurement (20)
  • mulch (2)
  • Paint/ putty calculator (21)
  • plywood (3)
  • Rate Analysis for civil work (2)
  • RCC (176)
  • Road/ highway (13)
  • Roof slab (41)
  • sand (2)
  • siding (17)
  • soil (1)
  • Soil mechanic (10)
  • span (9)
  • Tile (32)
  • Uncategorized (832)
  • wallpaper (5)
  • Weight of Steel (50)
  • सिविल नॉलेज इन हिंदी (19)

Recent Posts

  • How tall is a 4, 2, 3, 5, 6, 7, 10 & 14 step stringer
  • What is column size for 16 feet span for residential building
  • What is column size for 24 feet span for residential building
  • What is column size for 18 feet span for residential building

Popular Post

How tall is a 4, 2, 3, 5, 6, 7, 10 & 14 step stringer…

What is column size for 16 feet span for residential building

What is column size for 16 feet span for residential…

What is column size for 24 feet span for residential building

What is column size for 24 feet span for residential…

What is column size for 18 feet span for residential building

What is column size for 18 feet span for residential…

What is column size for 22 feet span for residential building

What is column size for 22 feet span for residential…

What is column size for 21 feet span for residential building

What is column size for 21 feet span for residential…

Footer

About Us

At CivilSir, we share all the information related to civil engineering. So if you are a civil engineering student this is the best platform where you can improve your knowledge.

Newsletter

To get update of latest post signup below by giving you email address.

Follow Us

DMCA.com Protection Status

Copyright © 2023 CivilSir About Us Guest PostContact usPrivacy policySitemap