How to work out cutting length for column circular stirrups

This construction video is recorded to provide you some useful tips for estimating the cutting length of the circular column stirrups.

Here the radius of the column is taken as 400 mm.

Dia of stirrup is taken as 8 mm

Concrete Cover is taken as 40 mm

Stirrups are also known as Links or Rings or Transverse Reinforcement. Stirrups are applied in Beams and Columns. The stirrups remain vertical in a beam and horizontal in a column.

Benefits of column stirrups :
To settle and withstand the longitudinal (main) steel bars in columns to bulging below the vertical forces (compression force) particularly in the middle of the column prior to get to the concrete.

Increase the quantities (diameter or by spacing) of stirrups at both ends of the column with the intension of combating the horizontal forces which produce horizontal shear forces on both ends of the column.

Go through the following video, to get the detailed process.

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Published By
Rajib Dey
www.constructioncost.co
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Porotherm Bricks : Properties, Advantages and Applications

Porotherm clay bricks are special type of bricks made using natural clay, coal ash, rice husk, and granite slurry. Apart from the common size 400x200x200mm, they come in various sizes. They help in providing walling system which aids in thermal insulation resulting in cooler interiors in hot summer and warm interior in cold seasons. These clays apart from being environmentally friendly, they are economical and easy to use.

Properties:

a. The compressive strength is greater than 3.5MPa.
b. High thermal and sound insulation.
c. Low weight.
d. High fire resistance.
e. Density range from 694 to 783 kg/m3.
f. Large size but light in weight.
g. Water absorption is around 15.

Advantages:

1. Environmental Friendly: Porotherm bricks are made up of recycled materials hence, they’re eco friendly.
2. Cost Effective: Porotherm bricks save lot of energy by cutting operation and construction cost.
3. Speed of Construction: Due to its lightweight nature and ease of handling, it increases the speed of construction.
4. High Durability: They’re highly durable and can easily resist fire and carbonation, thus possess long life.
5. Thermal Insulation: Perforation of these bricks results in great thermal insulation.
6. Good Strength: Porotherm bricks are manufactured at high temperatures. It’s composition includes teeracotta which adds strength to the brick. Compressive strength of porotherm brick is greater than 3.5MPa.

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Published By
Rajib Dey
www.constructioncost.co
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Quantity Take-off in Earthwork Volume Calculation

Quantity Take-off software is also used in calculating Earthwork Volume and this earthwork is done to restructure the topography of a site to get the design levels.

There are various types of methods of volume calculation that can be approved to find earthwork quantities; there are various civil engineering projects like road work, irrigation canal project, tank survey, earth moving, etc. for which different calculation methods are used. Some of them are invented in many time ago when the computer or calculator were not invented and still now are being used. Besides this, nowadays industry practices of various kinds of volume calculation which are discussed here to help the readers to choose the right one.

Earthworks: These are engineering works made through the moving and/or processing of huge quantities of soil and unshaped rock. Earthwork is done to restructure the topography of a site to get the design levels. Earthwork includes cutting and filling to get the needed topography.

• Cutting: It is the procedure of digging earth material from a work location or borrows pits to reach the desired topography.

It is the procedure of moving the excavated material or extra earth material to work a location to reach the desired topography.

Applications of Earthwork: Earthwork is done in the projects like Road works, Railways, Irrigation project such as canals and dams, other common earthwork applications are land grading to reconfigure the topography of a site or to fix slopes. Method of Earthwork Calculation: There are four popular types of earthwork calculation which written below:

• Section method
• Average method
• Division by Square method
• Contour method

At first, an earthwork calculation survey needs to do on the site. During this survey, the site elevations of the existing at various points of the work site are stubborn. All the calculations are done depending upon these values.



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Published By
Rajib Dey
www.constructioncost.co
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