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Reinforced Concrete Design

Structural Design of Corbels

Ubani Obinna - 0
A corbel is a very short structural cantilever member projecting from a wall or a column for the purpose of carrying loads. In reinforced...
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Reinforced Concrete Design

Lapping of Reinforcements and Use of Rebar Couplers – Peculiarities and Differences

Ubani Obinna - 0
In reinforced concrete buildings, it is almost impossible to carry out construction without lapping reinforcements at one point or another. This is due to...
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Concrete

The Role of Compression Steel in Deflection of Reinforced Concrete Structures

Ubani Obinna - 0
Deflection is one of the most important serviceability limit state criteria in the design of reinforced concrete structures. Excessive deflection in a structure can...
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Opinion

Engineers React to Large Span Cantilever Slab Construction

Ivy Ugorji - 11
A structural engineer posted a picture of a large cantilever slab construction on LinkedIn, and so many reactions have followed the picture due to...
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Concrete

Cracking Due to Edge Restraint and Early Thermal Effects in Concrete

Peace Ikpotokin - 0
Crack width is calculated by multiplying the crack inducing strain by the crack spacing (i.e. the movement over a length equal to the crack...
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Concrete

Coefficient of Thermal Expansion of Concrete

Ubani Obinna - 1
Coefficient of thermal expansion is defined as the change in unit length per degree of temperature change. In a concrete element, it is therefore...
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Concrete

Restraint and Restraint Factors of Concrete

Ubani Obinna Uzodimma - 0
If movement (expansion and/or contraction) is restricted within a young concrete element, tensile stresses will develop which will lead to cracking. This restriction to...
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Concrete

Cracking in Concrete

Peace Ikpotokin - 1
Eurocode recognises that cracking is normal in concrete subjected to bending, shear, torsion, and restraint from movement (clause 7.3.1 EN 1992 1-1). Cracking is...
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Concrete

Crack Width and Crack Spacing Calculation in Concrete

Ivy Ugorji - 1
Cracking occurs in concrete when the restrained strain exceeds the tensile strain capacity of the concrete. In critical elements like water retaining structures, crack...
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Reinforced Concrete Design

Minimum Area of Steel for Imposed Deformation Cracking

Peace Ikpotokin - 0
Minimum reinforcement is provided to ensure that yielding does not occur, and by so doing, cracking is adequately controlled in a concrete section. The...
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Artificial Intelligence

Deep Learning can be used to Detect Cracks in Fire Damaged Structures

Ubani Obinna - 0
Researchers from Ewha Womans University, Seoul, South Korea, have proposed a machine learning technique for detecting surface cracks on fire damaged concrete. Even though...
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Uncategorized

Important checklists before casting concrete on site

Ubani Obinna - 1
Concreting or casting days are usually big days for site engineers. It is very typical to see engineers and project managers work very hard...
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Most Read

Guidelines for Tying of Reinforcement

Construction Ubani Obinna - 0
In the construction of reinforced concrete structures, reinforcement bars must be tied together in order to hold them in place and to also facilitate...
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Cost of Reinforcement Works in Nigeria

Construction Ubani Obinna - 1
Installation of reinforcements is an important item of work in the construction of reinforced concrete structures. The cost of reinforcement works therefore significantly impacts...
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Design of Shear Walls

Eurocode 2 Ubani Obinna - 0
Shear walls are structural members that provide additional lateral stiffness to a building by resisting shear, moment, and axial forces, which are produced due...
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Technical Guide: Detailing and Arrangement of Beam Reinforcements on Site

Beams Mubarak Shittu - 3
Beams are horizontal structural elements used for supporting lateral loads. In conventional reinforced concrete structures, beams usually receive load from the floor slab, but...
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EDITOR PICKS

Elastic Analysis of Circular Plates

Slabs Ubani Obinna - 0
A plate is a flat structural element that has a thickness that is small compared with the lateral dimensions. Plates are bounded by two...
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Shear Wall-Frame Interaction in High-Rise Buildings

Frames Ubani Obinna - 0
Shear walls and frames (comprising of columns and beams) are distinct structural systems that can be used in resisting lateral actions in high-rise buildings....
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Effects of Wind on Billboard Structures

Steel Structures Ubani Obinna - 0
Billboards are large outdoor advertising structures that are found along highways and city centres. Due to their large size and flexibility for creative output,...
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POPULAR POSTS

Structural Analysis and Design of Residential Buildings Using Staad.Pro, Orion, and Manual Calculations

Structural Analysis Ubani Obinna Uzodimma - 31
This should be a long post, but I am going to try and keep it as brief as possible. This post is more like...
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PRACTICAL ANALYSIS AND DESIGN OF STEEL ROOF TRUSSES TO EUROCODE 3: A SAMPLE DESIGN

Structural Analysis Ubani Obinna Uzodimma - 28
1.0 INTRODUCTION The most widespread alternative for roof construction in Nigeria is the use of trusses, of which timber and steel are the primary choice...
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Can you identify the cause of failure of this building?

Construction Ubani Obinna - 24
Structural failure is real, and it is the duty of structural engineers to identify all possible modes of failure in a structure, and design...
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