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How to Achieve Grade 25 Concrete on Site

The characteristic compressive strength of concrete to be used in construction is usually specified in the working drawings, design calculation sheets, and...

Structural Design of Ribbed Slabs

Ribbed slab is a type of reinforced concrete slabs in which some of the volume of concrete in the tension zone is...

Construction of Underground Water/Septic Tanks by Sinking

Underground water retaining structures have wide applications in residential, commercial, and industrial buildings. According to Lagos State Development Laws (2005), a building...

3D Soil-Structure Interaction Analysis of Cantilever Retaining Walls

Retaining walls are structures used to retain earth fill, and have found wide applications in buildings and highway construction. Traditionally, cantilever retaining...

Formulas for Calculating Different Properties of Concrete from Compressive Strength

The most basic test done on concrete in most laboratories is the compressive strength test. Sometimes other properties of concrete such as...

Structural Design of Encased Steel Columns

Composite sections of concrete and steel have a lot of advantages especially in the structural performance and fire resistance of a building....

Difference between Autogenous and Drying Shrinkage of Concrete

Autogenous shrinkage is caused by self-dessication in young concrete as water is consumed during hydration reaction. This occurs majorly within the early...

Specification of Concrete for Water Retaining Structures

In the year 2018, we made a successful publication on Analysis and Design of Swimming Pools and Underground Water Tanks. In this post, we...

Analysis and Design of Cantilever Retaining Walls on Staad Pro

In this post, we are going to show how cantilever retaining walls can be analysed and designed on Staad Pro software, and also compare...

An Investigation on the Analysis of Beam and Raft Slab Using Staad Pro

Modern codes of practice are increasingly recognising the computational power of structural analysis  softwares. Staad Pro is a renowned structural analysis and design software...

Use of Polystyrene in Ribbed Slabs: Structural Design Example

For long span slabs in a building subjected to light load, ribbed slabs are more economical than solid slabs. In ribbed slab construction, reduction...

How to Design RC Beams for Heavy Shear Load

Shear failure usually occurs in form diagonal cracks, and must be checked under ultimate limit state during the structural design of buildings. In reinforced...

Most Read

Analysis of Wind Load on Bridge Decks

In the design of bridges, environmental actions such as wind, snow, and temperature should also be considered alongside traffic actions. In this...

Important checklists before casting concrete on site

Concreting or casting days are usually big days for site engineers. It is very typical to see engineers and project managers work...

Modeling and Analysis of Spherical LPG Tanks

Spherical tanks are used in several applications such as water storage, nuclear cooling, and storage of liquefied gases such as liquefied natural...

How to build your rate and quote for concrete

In civil engineering construction works, contractors bidding for a job are always required to specify the rate they will use in executing...