Month: July 2019

Algeria Wins AFCON 2019

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In a repeat of earlier group game, Algeria once again edged Senegal by one goal to win AFCON 2019. Senegal were hoping to clinch their first ever African cup of Nations title, but ended in disappointment.

Algeria got their goal on their very first attack. It was a surprise goal as Baghdad Bounedjah’s deflected shot rises so high and then dips beyond the Senegalese goal keeper into the net. The Senegal goal keeper didn’t make an attempt to save as he was rooted to his spot and watched helplessly as the ball dipped into the net.

Senegal 0, Algeria 1 !, this was not according to the script for Senegal. They have never won the AFCON, and this was a good chance for them. After the goal it was attack, attack for Senegal. They were even awarded a penalty in the 61st minute by the referee which was overturned by VAR. In the end , for all Senegal efforts they got NOTHING, as Algeria held on to win AFCON 2019.

Match Statistics. Senegal vs Algeria.

This is the second African Cup of Nations trophy for Algeria, 19 yeas after they won the first. Coincidentally in the final 19 years ago they beat Nigeria 1-0. They scored the goal very early in the game and defended well until the end. Algeria has been the best team of the tournment and desere to be champions.

Nigeria’s striker Odion Ighalo won the Golden Boot award. He is the highest goal scorer in the tournament with 5 goals.

Retaining Wall Design with Excel.

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Retaining walls are designed and constructed to retain certain amount of soil at a particular location. Retaining wall must prevent any movement of soil it is designed to hold back so as not to cause damage to buildings properties nearby.

A good retaining wall must adequately resist sliding and overturning forces of the retained soil acting on it. To achieve this , the retaining wall must be designed to determine the correct size and amount of reinforcement required.

The design of retaining walls is very tedious and time consuming. However you can take advantage of this free retaining wall design SPREADSHEET to aid your design. It is a free spreadsheet created with Microsoft excel that designs retaining walls to BS 8110.

Credit goes to the Reinforced Concrete Council UK for making this spreadsheet free.

You can download  RETAINING WALL DESIGN WITH EXCEL SPREADSHEET HERE

You can also watch the video through this link; https://www.youtube.com/watch?v=3PF43tc41f4

How to use Retaining wall design with excel.

You enter data into cells with blue text.

In the first six rows of the spreadsheet you can enter name of project, client, date, job title and even logo.

From row 7 to row 21, you see a diagrammatic retaining wall explaining member dimensions and forces acting on it.

Row 22 to 26 you enter or edit retaining wall dimensions such as length and thickness of stem and base.

You enter material properties data such as strength and factor of safety for concrete and steel in row 27 to 32.

Enter soil properties data in row 33 to 41.

Lastly you enter load data in rows 43 to 53.

If data you have entered is ok, you will see design status read VALID in row 7.

Check the stability calculations by clicking the STABILITY TAB at the bottom of the spread sheet.

Required calculated Reinforcement for retaining wall can be viewed by clicking the DESIGN TAB. Similarly you can click the WEIGHT, Diagrams, Crackwidth and Notes TAB for more information.

To use excel spreadsheet to aid your design of pad footings you can read this POST

Virtual Reality (VR Gaming)

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PS4 VR Hadset.

Virtual reality gaming is the latest generation gaming system that puts the player in a virtual 3D environment. For some virtual 3D games, it would seem as if the player is really in the game. (that’s why it is called virtual reality).
Virtual reality games are usually played with a VR headset(also called head mounted display ). the virtual reality headset will typically take the form of Head mounted googles with a screen in front of the eyes. (see Picture below of the PS4 virtual reality headset).
VR gaming is already attracting more gamers and investors. Since it is still very much in development, it will at some point eventually overshadow the conventional video gameplay system. (in which a gamer controls characters displayed on a non 3D screen).

The VR gaming problem.

People who play VR games are prone to motion sickness. Because virtual reality creates the illusion that one is in the game, when in reality, it is not,it creates a communication breakdown between the brain and bodysystem. for example in a VR game where the player appears to be moving in the virtual world, the brain might send signals to the body believing there is actual movement while the body might not respond adequately because it is actually stationary (or vice-versa), this communication breaking causes dizziness or tiredness during game play.

However practice makes perfect, as one continues to play VR games, the body eventyually ajusts, but this may not be the game for everyone.

If one experiences dizziness or other forms of sickness during VR gaming, it is strongly advised to stop immediately then continue when the body is fine.

However ,Virtual Reality Gaming is fast evolving and it is the latest happening in the gaming world at the moment.

Types of Glass, Uses and Properties.

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Generally all types of glass is produced by mixing silica with other additives such as sodium potassium carbonate, lime, manganese oxide and subjecting the mixture to very high heat. Silica is the main constituent of glass but to make it durable, lime or lead oxide is added. Glass items are manufactured by blowing, flat drawing, pressing and rolling.

Properties of Glass.

Glass is strong and durable, inert to the atmosphere, good electrical insulator, absorbs, reflects or transmits light, available in many colours and easy to clean.

Types of glass and their use.

Potash Lime Glass:

Mainly a mixture of potassium silicate and calcium silicate. Also known as hard glass. It is used in the manufacture of glass articles that have to withstand high temperatures.

Common Glass:

It is basically a mixture of sodium silicate, calcium silicate and iron silicate. It is brown, green or yellow in colour. Used mainly in the manufacture of bottles.

Soda Lime Glass:

Consists of sodium silicate and calcium silicate. It is fusible at low temperature and this property makes it easy to form to required shape. It is used in the production of items such as laboratory tubes and window panes.

Potash Lead Glass:

Consists mainly of potassium silicate and lead silicate. It has bright lustre and great refractive power. Used in the manufacture of artificial gems, electrical bulbs, lenses, prisms and so on.

Special Glass:

This type of glass is produced by altering the basic ingredients and adding a few more. Examples of special glasses includes; Fibre glass, Foam glass, Bullet proof glass, Structural glass, Wired glass, Ultraviolet ray glass, Perforated glass and so on

USA Defeat Netherlands to Win Women’s World Cup

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USA Defeat Netherlands to Win Women's World Cup
USA Win 2019 FIFA Women’s World Cup

Goals from Megan Rapinoe and Rose Lavelle ensured that USA Defeat Netherlands to Win Women’s World Cup for the second consecutive time.

Netherlands defended resolutely in the first half hoping to catch USA on the break. The USA were very careful and first half ended 0-0. The Netherlands continued with the same approach in the second half, allowing the USA to do the attacking.

However, luck ran against them in the 58 minute when the VAR adjudged Barcelona defender Stefanie van der Gragt’s to have fouled Alex Morgan in the 18 yard box. Indeed the defender’s high boot caught the striker as was shown in the replays.

Penalty was awarded to USA and Megan Rapino coolly slotted home to give the USA a one goal lead. The Netherlands had no choice but to come out of their shells. But 8 minutes later Rose Lavelle scored the second goal after a fine run to end Netherlands hopes of wining the cup.

The match statistics reflected very much the nature of the game. USA had 13 shots in total while Netherlands had 3 shots. Of the 13 shots by the USA, 4 shots were on target while 2 of Netherlands 3 shots were on target.

You can watch match highlights and to see how USA Defeat Netherlands;

USA definitely is the best team of the tournament. They had already laid down a daunting marker after they demolished Thailand 13-0 in their first match.. USA’s Megan Rapinoe is the golden boot winner and best player of the tournament. USA has now won the title for the fourth time.

In the 3rd place playoff, Sweden defeated England 2-1.

SEE HERE to view FIFA Women’s 2019 Quarter final results. To view Semi Final, Third Place and Final results CLICK HERE.


Column Design with Excel

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Column design 1

Column design with excel, named RCC 52 is a free program you can use to carry out your column design. This program was created with Microsoft Excel by the Reinforced Concrete Council United Kingdom. It designs to British Standard (BS) 8110. RCC 52 can really aid your design as it can design up to six columns at once.

How to use column design with excel; RCC 52.

The program is very easy to understand and use. you enter data in blue cells.

In the first rows of the spreadsheet you can enter project name, title, name of design, date, page and so on.

At the second set of rows you enter strength of concrete and steel, factors of safety and cover to reinforcement.

In the third set of rows, enter proposed column dimensions and and number of reinforcement bars.

In the bar arrangement section, you enter the highest bar diameter you want to use.

Directly under the column chart is the load cases section. There are six load cased which means six columns can be designed at once. You can design vertical row of columns from top to bottom. you will be required to enter pre-calculated load and moment acting on the columns.

Column design

By using the generated column chart with the bar arrangement table, you will know which columns have valid design. You can keep trying out several column dimensions, and number of reinforcement bars until an economic design is achieved.

You can watch video on how Column Design with Excel works; https://www.youtube.com/watch?v=4gcxiFNeMkI

To download column design with excel spreadsheet; CLICK HERE.

For information on how to obtain and use Pad footing/foundation Design with excel, READ THIS ARTICLE.