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The Types of Bridges

the main types of bridges with details

Bridges are essential when it comes to passing all kind of gaps/spans for civil engineers so the types of bridges as well. When we have discussed any kind and any types of bridges there can be complications especially with the less experienced civil engineers, even I had confusions in the past, moreover if English is not your native language it can be more confusing. These days I am preparing some documentation about my professional engineering career and I have found these drawings. They are showing clearly the types of the bridges in the simplest way.

The drawing above shows the 4 main types of bridges, even LOADs, SUPPORT and COMPRESSION Points.

The 4 Main Types of Bridges:

  1. Beam Bridges: This type of bridges are mostly chosen also cost effective based on the performance. Can be built in different spans based on the design. Especially chosen for the ease of construction.
  2. Truss Bridges: You will remember them from the western movies, the railroad bridges … 🙂 But be careful about the maintenance part.
  3.  Arch Bridges: Visually my favourite but the foundations need to be firm. Commonly used in the old world by the Roman Empire especially for water transportation, I have seen marvellous stone arch bridges.
  4. Suspension Bridges: If you have to pass long spans this is the type you are going to use but not cost friendly as beam bridges.

The drawing below shows more detailed bridges like floating bridges, bascule bridges and etc.

My main purpose is to make a small base for engineers looking for types of the bridges, at least having an idea about them.

We can use more detailed drawings and bridges but my aim is to keep the list as simple and less confusing as it can be.

The List of Bridges

2nd Dispute Boards Seminar

Attend to a Dispute Board Hearing

Do you want to attend a Dispute Board Hearing!. Alone, the Dispute Adjudication Boards (DABs) term is frightening the construction professionals…. But now you have a chance to attend to a mock dispute board hearing. 

one of my projects there was millions of dollars (literally) disputed amount that was basically the result of the different point of views to the works executed and of course interpretation of the Contract. But at the end, millions of dollars were on the table waiting for a resolution. I was telling myself “just the total amount of the basic interest rate and man hours spend for the disputed works could start and finish a middle scale construction project”. As a result, I witnessed myself how costly and time-consuming can be for those kinds of unresolvable disputes. 

Last years, I got a chance to attend a training by UAE Society of Engineers  called “Arbitration in Construction under FIDIC Contracts”. In the training, I learnt the fundamentals about disputes, arbitration, boards, and etc.. Moreover main differences between Arbitration and Dispute Adjudication.  But I was curious to see a live Dispute Board Hearing after the training…

Couple of days before I got an invitation mail from Dispute Boards MENA which was calling (me) for 2nd Dispute Borads Mena Seminar. At the end, I will have the chance to attend a Dispute Board Hearing even it is mock. If I would stay in Emirates up to meeting date which I don’t know yet. But if I am around,  I will definitely attend Mock Dispute Board Hearing. 

Besides, as indicated in the programme one-hour Networking will be another advantage of the day for you.

Part of the invitation mail which is self-explanatory: 

The seminar will consist of an introduction to DABs followed by a mock dispute board hearing during where listed DB MENA practitioners will take on the roles of the Contractor, the Engineer and the DAB. Specifically, the Contractor will present his case to the DAB and the Engineer will respond on behalf of the Employer. Having heard both cases, the DAB will give a decision and share the reasons for reaching it.

Details for the Mock Dispute Board Hearing: 

Date: Wednesday 13th April 2016
Time:
6:30pm – 7:00pm – Networking and Refreshments
7:00pm – 8:00pm – Mock DAB Hearing
8:00pm – 8:30pm – Q&A
Venue: Conference Centre, Block 1, Dubai Knowledge Village. A car park is located directly across the road from the Conference Centre for those driving to the venue.
Presenting the Mock DAB Hearing:
Representing the Contractor: Andy Hewitt
Representing the Engineer: Gordon Clark
Representing the DAB: TBA
Fees: Dispute Boards MENA is a non-profit initiative. We, therefore, ask for a fee of AED 100 per person to cover the costs of running the event.

For more information website of the Dispute Boards MENA: http://www.disputeboardsmena.com/

For Registering the event: https://www.eventbrite.com/e/2nd-dispute-boards-mena-seminar-how-dispute-boards-save-time-and-money-on-construction-projects-tickets-21600080422

India Real Estate Outlook – H1, 2014

Previous days I have seen the report about India Real Estate Outlook – H1, 2014 which have been prepared by Knight Frank India and want to share it with you but due to my busy schedule I just have time.

As a former expat worked in India. I have interest and expectations from India for the future. Even though India have its own dynamics, way of working and many many more …

Lets talk about the Report:
It was the election year and it effected as slow economic growth, inflation, etc. so:
Construction market was less stable.
As a result of elections, market did not want to launch new projects.
The extreme demand will continue in India in my opinion.
As a result of the elections market will gain power again.
And also as far as my observations and discussions with Indians the new President “Modi” has already a positive psychological expectations for the future.

for Knight Frank India web site click Here : http://www.knightfrank.co.in/
For the the report click Here : http://www.slideshare.net/KnightFrankIndia/india-real-estate-outlook-slide-share

Which One Is Better; 4 Way Stop Vs Roundabout

this is a global question; Which One Is Better; 4 Way Stop Vs Roundabout
I can write lots of thing through the experiments and researches to determine which one is better but there is a fact that Americans are fan of 4 way stop and English are definitely on roundabout side. but lets watch the Mythbusters episode trying to find out the answer… “Which One Is Better; 4 Way Stop Vs Roundabout ”

http://www.youtube.com/watch?v=OvoFjirrgYA

Personally I still feel more relax with 4 way stops than roundabouts which the NY Times article “Roundabouts: Efficient or Annoying?” which can be read at here shows that some are thinking like me.

Last, for low density roads it seems like roundabouts are better (of course with the countries people tend to obey the traffic rules) however depending on the actual traffic flows a 4 way intersection with intelligent traffic lights could be quicker overall for medium or high density roads.

Gulf Construction Overview 2014

value of projects in GCC
Value of Projects in GCC

Gulf is famous for its remarkable construction projects so get commercial and discuss about Gulf Construction Overview 2014. It seems like it will be another impressive year for Gulf Region but for Dubai my expectation is so high for next year that Dubai recently working on projects (FEED Phase) for Expo 2014.

Gulf Construction Overview 2014 Report is prepared by The MEED projects which is database covers over 12,000+ projects across 52 sectors and sub-sectors with over 17,000 key contacts in 18 countries within the MENA region. Meed projects also preparing a country-by-country assessment/report of the construction projects sector specific for the MENA.

Top construction projects awarded in GCC in 2014
Top Construction Projects Awarded in GCC / 2014

For detailed report you can visit MEED Projects website from here. I can say that it is a desirable source for the ones who/which is tendering/looking jobs in GCC. Also I would like to have a full copy too 🙂

Lets go through the highlights of the Report;

  • It is also one of the most challenging. Contractors must battle with each other to win work in a competitive environment where price is all important. They must deal with high temperatures, aggressive ground conditions, a multitude of import and visa requirements, projects where the scope can evolve daily, and a complex permitting landscape. ( My Note: Permitting is one of the major challenges for Infrastructure)
  • According to MEED Insight’s GCC Construction report, there has been close to $575bn in construction contracts awarded in GCC countries since 2005. A total of $221bn is currently under execution.
  • According to MEED Insight GCC Construction 2014 report, the region has a strong forward pipeline of projects with $420bn-worth of construction projects in the tender evaluation, design or study stages. Most immediately there is some $83bn-worth of projects in the tender stages. The largest segment of this is road
    and street work in Qatar and Saudi Arabia along with infrastructure for Saudi Arabian education projects.
  • In terms of known planned and un-awarded projects, Saudi Arabia remains the largest market thanks mainly to its huge housing, education, healthcare and railway plans. The UAE is the second-largest market, a position it is expected to consolidate as it continues to announce a raft of new real estate schemes. Such has been the acceleration in announced projects in the federation over the past six months, it is feasible to expect that the UAE may well overtake Saudi Arabia in terms of future construction project values. Qatar is in third spot thanks to its ambitious project plans, including the express way and local roads programmes,
    mega-real estate projects such as Lusail and Msheireb, and tunneling schemes on its metro network. The other three GCC states remain relatively small in comparison.
Construction projects out to tender by type and value
Construction Projects out to Tender by Type and Value

How to Build Speed Humps

Speed Hump construction

I should admit that I am a bit obsessed with speed humps, especially as a civil engineer how to build speed humps which I see a lot of speed humps which are just built without any projection nor calculation; some too short, some too high and some with so short intervals that I saw three speed humps built side by side which you feel you are on the off road and etc.; But in total making me annoying.

So I tried to gather various sources together and prepare a reference; here is how to build speed humps by specifications and standards; Read More

Engineering in the Ancient World

Engineering in the Ancient World Book Cover1Lets talk about the ancient world and especially “Engineering in the Ancient World” through a book named as same as the topic which I have read recently which have enlightened me about some topics especially hydraulic engineering.

Especially the topic “Water supplies and engineering” was my favorite as it answered many questions in my mind about engineering in ancient times. For example the explanation of how they bored water tunnels from different locations and connecting each nearly without any Read More

List of Turkish Technical Consultancy Companies

For years I am working with international projects with multinational teams/companies. Some of the projects I stepped into from the scratch and realized that the companies have issues in a new market/country as to build up team, collaboration with local laws – legislation and also codes, specifications, standards and etc.

Besides that presently in construction sector if you are at the client part, it will be needed for a technical consultant for sure. What I observed is; as the consulting business start to boom in the industry there started to be established lots of new consultancy firms but lots of them do not have a background for specializing the field of the business. As a result; reliable consultant is a must for my point of view and hard to locate in the market especially in 3rd world countries…

For the foreign companies which have project(s) in Turkey it is more critical to make the right choice that would affect all the project’s success so I wanted to share the List of Turkish Technical Consultancy Companies as below.

The list is generated due to the Association of Turkish Consulting Engineers and Architects (ATCEA) web site which seems the most reliable source.