Hoover dam bridge construction animated

Hoover dam bridge construction animated

Tour inside Burj Khalifa (Burj Dubai)

148 floors in the sky: The view from the Burj Khalifa

Far above the desert, in the heart of the city of Dubai, stands the tallest building in the world. A stunning tower of steel, concrete and glass.

Flow Table Test

Flow Table Test

This test was covered by BS 1881 : 105 : 1984. The test is appropriate for concrete of high and very high workability, including flowing concrete which would exhibit a collapse slump.

How to move loads in the expansion joints in bridge

How to move loads in the expansion joints in bridge

Staircas-reinforced details

Staircas-reinforced details

Pre-Engineered Buildings (PEB)

Pre-engineered buildings are buildings that are built in factories and are made of steel that are shipped to site and bolted together. PEB (Pre-engineered Building) revolution the construction market using built up sections in place of conventional hot rolled sections. A large column free area is the utmost requirement for any type of industry which is provided by PEB.

Typical Pre-engineered Building

PEB concept involves the steel building systems which are pre designed and prefabricated. As the name itself indicates, there is involvement of pre engineering of structural elements. The basis of PEB is to provide the section at the specified location only according to the need at that spot. The sections may differ along the length according to the bending moment diagram. The use of optimal least section leads to the effective saving of steel and also reduction in the cost.

Various systems of PEB – Pre-Engineered Buildings:

Primary system:

This system involves tapered or parallel columns or tapered beams which are called rafters. Base of column is either fixed or pinned based on the load requirements.

Secondary system:

It consists of purlins, grits which are the side claddings and eave struts stiffened by sag rods. This system also includes the flange stiffeners which joins the untied flanges of the PEB primary system to the secondary system.

Wind bracing system:

Rod bracing and the portal system are the two types of wind bracing systems. Each one is chosen accordingly depending on design and functional requirement.

Accessories:

This part includes the Turbo ventilator, ridge vents, Flashings, gutters, down pipes, ladders etc.

Advantages of PEB – Pre-Engineered Buildings:

• Construction time: PEB reduces the total construction cost by the least 40% which leads to faster occupancy and early revenue.
• Lower cost: Saving is accomplished in design, manufacturing and erection cost.
• Large clear span: In PEB the buildings can be given up to 90m clear spans which is the important advantage of PEB with column free space.
• Flexibility of expansion: PEB can be easily expanded in length by adding additional bays.
• Quality control: PEB’s are manufactured under controlled conditions depending on the site and hence the quality is assured.
• Low maintenance: PEB’s have high quality paint systems for cladding which gives long durability and low maintenance costs.

Pre-engineered Building Under Construction

Applications of Pre-Engineered Buildings – PEB:

Some of the many applications of PEB are:

• Factories, Warehouses, Workshops, Offices
• Gas stations
• Showrooms
• Aircraft hangers
• Metro stations
• Vehicle parking sheds
• Schools, Indoor stadium roofs
• Bridges, Railway platform shelters
• Outdoor stadium canopies

PEB are more advantageous than the conventional structures in economy, speed of construction and simple erection. As these structures have a wide scope, they must be preferred and utilized.

PEB Assembly

Video below shows step by step assembly of a Pre engineered structure.

Pothole repair technology

Future Pothole Repairing Machine
Future Road Repair Technology

Lifting concrete with foam

FOAM JACKING

Foam jacking is a fast, economical repair process for correcting settled and unstable concrete. From sidewalks to interstates, and everything in between, foam jacking is economical, fast and effective for economically correcting settlement and instability.

Virtual Reality for Construction

Paradoxically, Virtual Reality (VR) technologies are still lagging behind the visions that people have for their use. However, VR has already demonstrated its capacity to change the ways we design, make decisions about, and produce built environments.

Self healing concrete

self healing concrete

Self Compacting Concrete (SCC)

Here is the video of Self Compacting Concrete (SCC) also known as Self Consolidating Concrete. It is a highly flowable, non-segregating concrete that can spread into place, fill the formwork and encapsulate the reinforcement without any mechanical/external application of consolidation or compaction.

Sanitation technology

Sanitation technology

When you're a badass operator

When you're a badass operator

Now that's attachment

the modern paver laying technology enables a higher work pace

The underwater room - manta resort pemba, tanzania

The underwater room - manta resort pemba, tanzania

These Safety Gloves Can Withstand Nails Hammers And Knives

These gloves could save your fingers a lot of pain.

They are the mark VIII safety gloves, and they are incredibly robust.

They have a special lining all the way through the fingers.

They are made from nitrile and cotton.

The gloves were designed by a chilean inventor.

He is now looking to manufacture the gloves on a large scale.

Construction of Arch Bridge

 

Construction of Arch Bridge

How tower cranes erected themselves

Ever wonder how cranes that build high-rise buildings get built? 
They can build themselves upwards!

Tunnel Excavation & Methods of Construction

Tunnel Excavation & Methods of Construction

How to use casing in borehole for pile foundation

This construction briefly explains how to apply casing in bore hole for pile foundation. Here Length of Casing points to 5m and usefully it is maintained among 5 to 10m. In order to set exact position of casing, it is most suitably to assign 2 point from the reference of center point of casing and get the equivalent distance of both the points from that reference point. When the casting will be put into bore hole, the distance will be calculated from both points to casting for maintaining the perfectness.