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Monday, May 25, 2020

Ubani Obinna

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A dynamic civil engineer with vast experience in research, design, and construction of civil engineering infrastructures. He is a member of the Nigerian Society of Engineers. Reach him at ubani@structville.com

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...

Calculation of Natural Frequency of Multi-Storey Frames

A multi-storey building can develop lateral vibrations in the two principal directions and torsional vibration around its vertical shear centre axis. The natural frequency...

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...

Analysis of Moving Load on Bridges Using Staad Pro

Every code of practice for bridge design has provision for modelling of traffic action as moving loads. This is similar to the idea of...

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...

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Design of Pile Foundation System for Bridge Piers

Piles are the most preferred type of foundation for supporting the piers of overhead bridges. They offer greater resistance to vertical...

Design of Bridge Pier and Pier Cap

Bridge pier caps are horizontal structural members used for transferring bridge deck loads to the piers, before they are transferred to...

Structural Stability of a Ten-Storey Braced Steel Frame

Structural stability is broadly defined as the capacity of a structure to recover equilibrium. As a topic in structural engineering, it...

What is the immediate solution to these geohazards?

Erosion, landslides, earthquakes, etc are identified are geohazards which normally require significant engineering efforts to put their effects under control. While...
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