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Showing posts with label Designs. Show all posts
Showing posts with label Designs. Show all posts

Saturday, March 14, 2020

Advantages and Disadvantages of On-site and Off-site Construction

The needs and restrictions at your construction project may make you choose between one of the two main methods of construction: on-site and off-site. Both are widely used in today’s construction industry, depending upon the requirements at the site and according to design.

What is On-Site Construction?
On-site construction is the more traditional method. Here, structures are assembled from raw materials at the site itself, hence the name. The method has to be carried out sequentially and materials needs to be stored and used at the site.


What is Off-Site Construction?
With modern technologies, off-site method of construction has become possible. In this, parts or blocks of the structure are constructed in a designated factory or yard in standardized process. Then, these pre-built blocks are carried to the project site where they are assembled together to form the structure.


Both of the above methods have their own advantages and disadvantages, which make them suitable to different scenarios. Let’s discuss them below.

On-Site Construction

Advantages:

1. Customized Design: Since there is no restriction on what shape of objects are available of construction, there are limitless customization options in this manner. In fact most non-standard designs have to rely upon the on-site method just for this.
2. Alteration: After the construction you can easily modify the structure with this method. It doesn’t require you to depend upon third-party construction factories to add or change a room in your house that has been constructed in the traditional method.
3. Space-friendly: Transporting precast blocks in tight urban areas can get simply impossible. More often, it’s prohibitively expensive. In these scenarios you have no choice but to construct everything on-site.
Advantages and Disadvantages of On-site and Off-site Construction

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Published By
Rajib Dey
www.constructioncost.co

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Thursday, August 22, 2019

Some vital guidelines for measuring staircase dimensions and designs

A staircase mainly includes a series of steps which involve a tread (the horizontal portion, where the foot stands) and a riser (the vertical portion).
In every step, there are one or more landings, handrails, and a small nosing. The latter obtrudes from the tread over the lower step, facilitating to raise its size devoid of inclusion of centimeters to the overall dimensions of the staircase.
By using the following formula, find out the exact dimensions of a convenient and efficient staircase in accordance with its use.
2 Risers + 1 Tread = 63-65 cm
The required space to attain these optimal dimensions is unavailable sometimes, but it's suggested to approach them as much as possible.
A schematic illustration of a steep and low-transit staircase.
(2 x 21) + (1 x 21) = 63 cm
A schematic illustration of an optimal staircase.
(2 x 18) + (1 x 28) = 64 cm
A schematic illustration of a loose staircase, desirably for exterior application.
(2 x 13) + (1 x 39) = 65 cm
Sample measurement of a staircase that should be 2.60 meters high.
1. Workout the required number of steps - Assume an ideal riser of 18 cm, the height of the space is divided with the height of each step. The result should always be rounded up:
260/18 = 14.44 = 15 steps
2. Workout the height of every riser - The height of the space is divided with the number of steps already acquired:
260/15 = 17.33 cm height for each riser.
3. Workout the width of the tread - It can be calculated with the following formula:
(2 x 17.33 cm) + (1 x tread) = 64
Each tread will be computed as 29.34 cm
The consequential staircase will contain 15 steps of 29.34 cm of tread and 17.33 cm of riser.
Based on the use and local regulations, there should be a minimum width of 80 cm for stairs in single-family homes, and more than 1.00 meters in public buildings.
Preferably, a stairway shouldn't contain in excess of 15 steps in a row. After 15 steps, a landing should be arranged. It's suggested that a landing is calculated minimum the same as 3 treads.
The height among the steps and the ceiling should remain 2.15 meters at minimum. The height of the handrail differs among 80 and 90 cm from each step.
Some vital guidelines for measuring staircase dimensions and designs
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Published By
Rajib Dey
www.constructioncost.co
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