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Yearly Archives: 2017

Design of Roof Purlins

Roof purlins are members used to directly support roof sheeting materials, and could be made of timber or steel. In timber construction, purlins are...

Analysis of Trusses Using Direct Stiffness Method: A Solved Example

An indeterminate truss is supported and loaded as shown above, using the direct stiffness method, obtain the displacements, support reactions, and internal forces that...

Stress Increment in Soil under a Pad Foundation

When foundations are constructed, they increase the net pressure in the soil. The knowledge of this stress increment is very important for estimating the...

99.99% of people will be clueless about this puzzle….

The values given for the following triangles were obtained using a consistent relationship. I really do not expect a lot of people to be...

Design of Cantilever Retaining Wall Supporting Lateritic Earth Fill

Cohesive soil profiles due to their nature are partially self supporting up to an extent called the critical depth (the critical depth is given...

Analysis of Arch-Frame Structure with Tie Element: A solved Example

An arch is supported on frame with different levels of supports as shown above. The frame is supported on a hinge at support A...

What is wrong with this section structural detailing?

A section of a beam profile is shown above. BASED ON THE GIVEN DATA ONLY AND WITHOUT MAKING ANY ASSUMPTIONS, identify the technical error(s)...

Analysis and Design of Curved Circular Beams in a Reservoir

Beams that are curved in plan are often found in buildings, circular reservoirs, bridges, and other structures with curves. Curved beams always develop torsion...

Preparation of Bar Bending Schedule For Floor Slabs

Bar bending schedule is an important structural working document that shows the disposition, bending shape, total length, and quantity of all the reinforcements that...

How to Carry Out Concrete Mix Design

Concrete mix design is the process of specifying and proportioning the quantity of concrete ingredients (cement, sand, gravel, and water) required to produce concrete...

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