The Different Stages Of Bridge Construction

Bridge construction has come a long way. Thanks to advancements in technology, lighter and more durable materials are now available to ensure that new bridges can accommodate greater loads. The construction process is also a lot faster because of the introduction of a multitude of different heavy construction equipment. This article explains the many stages involved in the construction of a bridge.

Bridge Construction Planningbridge con

One of the most interesting things about bridge construction is that it requires the knowledge and skills of engineers from different disciplines including civil, electrical, geological, mechanical and computer sciences. As with all construction projects, building a bridge starts with thorough planning. The different characteristics of the bridge are determined such as the bridge site details, aesthetics, resources and equipment to be used. There are several types of bridges, with the most popular ones being the beam, arch and suspension bridges.

There are cases in which bridges are categorised by the purpose it serves, like a road bridge or a pedestrian pavement. It can also be categorised as either fixed or movable. A different dynamic is involved in movable bridges, as they require different construction methodologies. This is because the bridge must be equipped with the capability of being piloted or lifted to allow marine traffic to move under it.

 

Building The Foundation

One of the most critical areas of bridge construction is the creation of its foundation. Extremely detailed geotechnical investigations are required for the planning of the bridge foundation. The first order of business is to determine the type of bridge foundation to be used. This primarily depends on the soil strata and the desired characteristics of the bridge. It pays to understand that the characteristics of the soil play an important role in identifying the capacity of the bridge to bear its load. When building the superstructure, engineers take into consideration not only the technical requirements but also the construction methodology and aesthetics of the bridge. Once the foundation plans are in place, construction of such bridges start. It will always need a concrete pump. This can include a line or boom pump, which is hired on a contractual basis. This is the most important part of the bridge hence the importance on the correct concrete pump for the job. Many companies offer these services such as https://www.youtube.com/watch?v=SzwG_18zq4Y  A Melbourne based company which was used on many projects is  www.concretepumpingmelbourne.com

The Different Loads Acting On A Bridge

It is essential to learn that vehicle loads aren’t the only type of load acting on a bridge. When constructing a bridge, engineers must factor in other forces such as winds and earthquakes. High-speed winds are responsible for the collapse of several bridges across the globe. Winds at tremendous speeds can cause the bridge to vibrate and create damages to its weak elements and even major components. Special reinforcements must be made to ensure that the bridge can withstand high-speed winds and strong earthquakes.

Testing Of Bridges

The building of a bridge is a very expensive construction project. Minor mistakes can amount to thousands or even millions of dollars. For this reason, all necessary tests must be done before the actual construction of the bridge. A variety of investigations and tests can help identify bridge behavior when subjected to different dynamic loads. With the help of computer programs, engineers can access essential information regarding the effect of high-speed winds, earthquakes and other elemental forces acting on a bridge. Possible defects in design and structure can be identified with the help of new technology.

Different types of Construction Projects:

Construction of any project involves the designing and building of structures that are meant for a particular use. It also requires the assembling of all the infrastructure that is needed for making the project of utilitarian value. Most construction projects require preparing the site, providing the necessary foundations, completing the structure, and then putting in all the mechanical, electrical and plumbing services that are needed to make the building or structure functional.

Commercial Construction Software
Commercial Construction Software

There are many types of construction projects, each one of which fulfils a particular need that its stakeholders may require from it. Types of projects can be:

Residential

Commercial

Institutional

Industrial

Transport related

Heavy construction

Housing is a basic need for humans, and residential development can again be of many different types, like cottages, single unit dwellings, houses, apartments, condominiums and others. These buildings are designed by architects and need to follow local laws and building codes. Investing in a housing for rental income can also make for sensible property acquisitions.

Commerce is a vital part of any society, and this requires the building of structures that are geared to accommodate a large number of people who will come to these buildings for carrying out certain commercial activities. It is necessary to pay a lot of attention to safety and security in the design and construction of these projects.

Institutions like schools, colleges, hospitals, sports facilities, stadiums, large shopping malls and various buildings for public use are projects that need a lot of attention to their individual use and have structures designed to take all the loads and provide the infrastructure that people using and visiting the buildings will require. The requirements of local authorities for the provision of infrastructure needed by citizens may also be part of these institutional projects.

Industries need many specialised construction structures that will be required to fulfil the particular requirements of each industry. These projects will require its builders to have specialized knowledge about the industry before the designs and construction of these projects can commence. Buildings will have large spans and heights, need installation of heavy lifting equipment, and have extensive requirements for power and water. Quite often these added needs can be significant construction projects in themselves. They will also involve the installation of machinery that is meant to carry out the production of the items that are part of the commercial activities of the industry.

Transport related construction projects may require the construction of roads, bridges, culverts, tunnels and can also include rail lines, airports, and ports. Each of these projects requires specialized knowledge and the extensive use of heavy machinery. Ports require the construction of underwater and marine structures. Maintaining these projects to allow them to provide the required service is also quite often quite demanding and also needs adequate attention from engineers.

Heavy construction projects can involve the building of dams, sewage treatment plants, filtration plants, flood control, dredging and many other projects that often fall in the domain of governments.

Every construction project needs adequate attention from technical staff and engineers who are experienced in each type of construction.