Huge reinforcement structures

REINFORCED CONCRETE CONSTRUCTION

There are two methods of fabricating reinforced concrete. The first is to pour the liquid material into forms at the building site; this is so-called in situ concrete. Insitu reinforced concrete, precast concrete and structural steel are popular and dominates in the framing market of multi storey buildings. The In Situ reinforcement concrete structural frame is common used as a frame for both single and multi-storey buildings such as residential flats and commercial offices. The use of reinforced in-situ cast concrete as a structural material for building is a frame combination with columns, beams, reinforced concrete floors and roof.

 In huge reinforced concrete structures, it is often difficult to distribute the reinforcing bars, especially at the connection regions, to keep the spacing between bars within the minimum acceptable limits as recommended in the global specifications standard, by using the common methods such as, overlapping or welding, therefore, a new method for bonding was introduced, using mechanical joints and electro fusion bonding method, and comparing these methods with the maximum strength of reinforcing bars without joints and the failure location within maximum strength limits outside the joints.

 

COST

Cost is one of the crucial factors need to be considered in the selection of structural framing options and this costs of framed structures can be affected by the market condition. The insitu reinforced concrete frame is much cost efficiency compared to the steel structural frame. This is due to steel is particularly volatile and always influence by the exchange rates due to international competitions. Adversely, cement price is more stable. Cement is one of the main components in the concrete mixture and thus cause the concrete price generally will be cheaper. Therefore it is wisely no to propose steel frame as its price fluctuate more frequently in comparing with concrete.

SPEED OF CONSTRUCTION

In principle, the insitu reinforced concrete frame has a disadvantage in term of construction speed it is relatively slow due to the time consumed for curing.

ABILITY TO STANDARDIZE

The insitu reinforced concrete frame is more flexible and tolerant in any alteration during the construction process. Any subsequence alteration is straightforward and it would not much affect the following construction sequence, process, cost and importantly greater delay would not happen.