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STRUCTURAL DESIGN

Concrete

Formulas for Calculating Different Properties of Concrete from Compressive Strength

Ubani Obinna - 0
The most basic test done on concrete in most laboratories is the compressive strength test. Sometimes other properties of concrete such as...
Read more
Concrete

Difference between Autogenous and Drying Shrinkage of Concrete

Ubani Obinna - 0
Autogenous shrinkage is caused by self-dessication in young concrete as water is consumed during hydration reaction. This occurs majorly within the early...
Read more

Manual Design of Beam and Raft Foundation to Eurocode 2 (free PDF download)

Eurocode 2 Ubani Obinna Uzodimma - 4
In our last post, we considered the analysis of beam and raft foundation of a G+1 building using Staad Pro software. In this particular...

Structural Design of Flat Slabs to Eurocode 2

Eurocode 2 Ubani Obinna Uzodimma - 2
Flat slabs can offer economical solutions to wider floor spans in a reinforced concrete building. Flat slabs are slabs that are supported directly by...

Example on Structural Design of Waffle Slab

Eurocode 2 Ubani Obinna Uzodimma - 0
Waffle slabs can be described as the equivalent of 2-way solid slabs especially when the spans are large, and ribbed system is to be...

Use of Polystyrene in Ribbed Slabs: Structural Design Example

Concrete Ubani Obinna Uzodimma - 3
For long span slabs in a building subjected to light load, ribbed slabs are more economical than solid slabs. In ribbed slab construction, reduction...

GENERAL CIVIL ENGINEERING

Daily Questions

8 Top Civil Engineering Questions (Part 2)

Ubani Obinna Uzodimma - 2
(1) For the structure shown in the figure below, which of the following is the most likely bending moment diagram considering linear first order...
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Eurocode 3

Buckling Amplification Factor for Portal Frames Sensitive to 2nd Order Effects

Ubani Obinna Uzodimma - 1
In order to evaluate the sensitivity of a portal frame to 2nd order effects, the buckling amplification factor αcr has to be calculated. This calculation...
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Statically Determinate Structures

Deflection of Elastic Systems Using Castigliano’s Theorem

Ubani Obinna Uzodimma - 0
Castigliano's method for calculating displacements is an application of his second theorem, which states: If the strain energy of a linearly elastic structure can be...
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RESEARCH REVIEW

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STRUCTURAL ANALYSIS

Structural Analysis

Structural Analysis of Portal Frames Subjected to Gravity Load

Ubani Obinna Uzodimma - 0
Gravity actions are normally used for verification of portal frames for lateral, buckling, and torsional stability. Elastic analysis and design of portal...
Read more
Bridges

Analysis and Design of Box Culvert Using Staad Pro

Ubani Obinna Uzodimma - 2
In our last post, we were able to establish how we can load box culverts properly. If you missed the post, kindly follow the...
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Bridges

Loading and Design of Box Culverts to Eurocodes

Ubani Obinna Uzodimma - 10
Introduction A culvert is a drainage structure designed to convey storm water or stream of limited flow across a roadway. Culverts can consist of single...
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BS 5950

Preliminary Plastic Analysis of Portal Frames

Ubani Obinna Uzodimma - 2
Steel portal frames provide economical solution for construction of industrial structures, warehouses, churches or other buildings with large enclosures. The loading scheme on portal...
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Latest Reviews

Concrete

Bonding of Old and New Concrete

Ubani Obinna Uzodimma - 7
In construction, there always comes a time when there is need to bond old hardened concrete (substrate) with fresh concrete topping/overlay. This post aims...
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Problems of Civil Engineering Consultancy in Nigeria

Guides Ubani Obinna Uzodimma - 2
The wealth creation cycle in construction industry revolves around the political climate, economy, government policies, availability of resources, technology, and skilled manpower. Thousands of...

Use of Rice Husk Ash in Concrete: Literature Review

Concrete Ubani Obinna Uzodimma - 1
1.0 Introduction A pozzolan is a siliceous or aluminosiliceous material that, in finely divided form and in the presence of moisture, chemically reacts with the...

GENERAL

Formulas for Calculating Different Properties of Concrete from Compressive Strength

Concrete Ubani Obinna - 0
The most basic test done on concrete in most laboratories is the compressive strength test. Sometimes other properties of concrete such as...
Read more

Structural Design of Encased Steel Columns

Column Ubani Obinna - 0
Composite sections of concrete and steel have a lot of advantages especially in the structural performance and fire resistance of a building....
Read more

Difference between Autogenous and Drying Shrinkage of Concrete

Concrete Ubani Obinna - 0
Autogenous shrinkage is caused by self-dessication in young concrete as water is consumed during hydration reaction. This occurs majorly within the early...
Read more

Specification of Concrete for Water Retaining Structures

Concrete Ubani Obinna - 0
In the year 2018, we made a successful publication on Analysis and Design of Swimming Pools and Underground Water Tanks. In this post, we...
Read more

Comparative Design of Triangular Pile Cap with free PDF download

Foundations Ubani Obinna Uzodimma - 1
In our post on Structural Aspects of Pile Foundation Design, we showed how we can determine the number piles required to support...
Read more

CONCRETE STRUCTURES

Formulas for Calculating Different Properties of Concrete from Compressive Strength

Ubani Obinna - 0
Concrete
The most basic test done on concrete in most laboratories is the compressive strength test. Sometimes other properties of concrete such as...
Read more

FOUNDATIONS

Foundations

Structural Aspects of Pile Foundation Design: A Practical Example

Ubani Obinna Uzodimma - 3
Geotechnical engineers are expected to hand over soil investigation report to structural engineers, who will proceed to provide the longitudinal reinforcements needed for the...
Read more

Calculation of Collapse Settlement of Collapsible Soils

Geotechnical Engineering Ubani Obinna Uzodimma - 0
Civil engineers are always faced with one challenge or another on site, and one of the major challenges on site has to do with...

On Consolidation Settlement of Pile Groups

Eurocode 7 Ubani Obinna Uzodimma - 1
When a group of piles are founded on saturated clays, the pile group undergoes time dependent consolidation settlement. This can be calculated using the...

Analysis of Beams on Elastic Foundation

Beams Ubani Obinna Uzodimma - 0
Introduction When a beam lies on elastic foundation under the action of externally applied loads, the reaction forces of the foundation are proportional at every...

STEEL DESIGN

Column

Structural Design of Encased Steel Columns

Ubani Obinna - 0
Composite sections of concrete and steel have a lot of advantages especially in the structural performance and fire resistance of a building....
Read more

Structural Analysis of Portal Frames Subjected to Gravity Load

Structural Analysis Ubani Obinna Uzodimma - 0
Gravity actions are normally used for verification of portal frames for lateral, buckling, and torsional stability. Elastic analysis and design of portal...

Preliminary Plastic Analysis of Portal Frames

BS 5950 Ubani Obinna Uzodimma - 2
Steel portal frames provide economical solution for construction of industrial structures, warehouses, churches or other buildings with large enclosures. The loading scheme on portal...

Simplified Design of Welded Connection to Eurocode 3

Connection Design Ubani Obinna Uzodimma - 1
In our previous post, we were able to present an example on the design of fillet welds for truss members using two different approaches....

Construction

Concrete

Difference between Autogenous and Drying Shrinkage of Concrete

Ubani Obinna - 0
Autogenous shrinkage is caused by self-dessication in young concrete as water is consumed during hydration reaction. This occurs majorly within the early...
Read more
Concrete

Specification of Concrete for Water Retaining Structures

Ubani Obinna - 0
In the year 2018, we made a successful publication on Analysis and Design of Swimming Pools and Underground Water Tanks. In this post, we...
Read more
Construction

What Engineers and Architects Should Know About Site Instruction

Ubani Obinna Uzodimma - 0
A site instruction is a formal written order given by the heads of a project to contractors or sub-contractors on specific projects issues such...
Read more
Geotechnical Engineering

Calculation of Collapse Settlement of Collapsible Soils

Ubani Obinna Uzodimma - 0
Civil engineers are always faced with one challenge or another on site, and one of the major challenges on site has to do with...
Read more

LATEST ARTICLES

Concrete

Formulas for Calculating Different Properties of Concrete from Compressive Strength

Ubani Obinna - 0
The most basic test done on concrete in most laboratories is the compressive strength test. Sometimes other properties of concrete such as...
Read more
Column

Structural Design of Encased Steel Columns

Ubani Obinna - 0
Composite sections of concrete and steel have a lot of advantages especially in the structural performance and fire resistance of a building....
Read more
Concrete

Difference between Autogenous and Drying Shrinkage of Concrete

Ubani Obinna - 0
Autogenous shrinkage is caused by self-dessication in young concrete as water is consumed during hydration reaction. This occurs majorly within the early...
Read more
Concrete

Specification of Concrete for Water Retaining Structures

Ubani Obinna - 0
In the year 2018, we made a successful publication on Analysis and Design of Swimming Pools and Underground Water Tanks. In this post, we...
Read more
Foundations

Comparative Design of Triangular Pile Cap with free PDF download

Ubani Obinna Uzodimma - 1
In our post on Structural Aspects of Pile Foundation Design, we showed how we can determine the number piles required to support...
Read more
Construction

What Engineers and Architects Should Know About Site Instruction

Ubani Obinna Uzodimma - 0
A site instruction is a formal written order given by the heads of a project to contractors or sub-contractors on specific projects issues such...
Read more
Foundations

Structural Aspects of Pile Foundation Design: A Practical Example

Ubani Obinna Uzodimma - 3
Geotechnical engineers are expected to hand over soil investigation report to structural engineers, who will proceed to provide the longitudinal reinforcements needed for the...
Read more
Geotechnical Engineering

Calculation of Collapse Settlement of Collapsible Soils

Ubani Obinna Uzodimma - 0
Civil engineers are always faced with one challenge or another on site, and one of the major challenges on site has to do with...
Read more
Structural Analysis

Structural Analysis of Portal Frames Subjected to Gravity Load

Ubani Obinna Uzodimma - 0
Gravity actions are normally used for verification of portal frames for lateral, buckling, and torsional stability. Elastic analysis and design of portal...
Read more
Eurocode 7

On Consolidation Settlement of Pile Groups

Ubani Obinna Uzodimma - 1
When a group of piles are founded on saturated clays, the pile group undergoes time dependent consolidation settlement. This can be calculated using the...
Read more
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Most Popular

PRACTICAL ANALYSIS AND DESIGN OF STEEL ROOF TRUSSES TO EUROCODE 3: A SAMPLE DESIGN

Eurocode 3 Ubani Obinna Uzodimma - 26
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...
Read more

Structural Analysis of Portal Frames Subjected to Gravity Load

Structural Analysis Ubani Obinna Uzodimma - 0
Gravity actions are normally used for verification of portal frames for lateral, buckling, and torsional stability. Elastic analysis and design of portal...
Read more

Structural Aspects of Pile Foundation Design: A Practical Example

Foundations Ubani Obinna Uzodimma - 3
Geotechnical engineers are expected to hand over soil investigation report to structural engineers, who will proceed to provide the longitudinal reinforcements needed for the...
Read more

Structural Design of Swimming Pools and Underground Water Tanks

Concrete Ubani Obinna Uzodimma - 28
I spent a large part of the last few months developing the contents of this booklet on 'Structural Design of Underground Water Tanks and...
Read more
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Recent Comments

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EDITOR PICKS

Comparative Design of Triangular Pile Cap with free PDF download

Foundations Ubani Obinna Uzodimma - 1
In our post on Structural Aspects of Pile Foundation Design, we showed how we can determine the number piles required to support...
Read more

Analysis and Design of Cantilever Retaining Walls on Staad Pro

Concrete Ubani Obinna Uzodimma - 3
In this post, we are going to show how cantilever retaining walls can be analysed and designed on Staad Pro software, and also compare...
Read more

Manual Design of Beam and Raft Foundation to Eurocode 2 (free PDF download)

Eurocode 2 Ubani Obinna Uzodimma - 4
In our last post, we considered the analysis of beam and raft foundation of a G+1 building using Staad Pro software. In this particular...
Read more

POPULAR POSTS

Structural Design of Swimming Pools and Underground Water Tanks

Concrete Ubani Obinna Uzodimma - 28
I spent a large part of the last few months developing the contents of this booklet on 'Structural Design of Underground Water Tanks and...
Read more

PRACTICAL ANALYSIS AND DESIGN OF STEEL ROOF TRUSSES TO EUROCODE 3: A SAMPLE DESIGN

Eurocode 3 Ubani Obinna Uzodimma - 26
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...
Read more

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

Column Ubani Obinna Uzodimma - 24
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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