Reinforced Concrete Columns

How to add reinforced concrete columns to an existing building

Reinforced concrete columns are mostly utilized to carry plenty of a building. They move these loads appropriate safe soil bearing capacity. Occasionally a building might have only the load bearing walls. These structure might not safely carry an extra floor above. The house could also require a roof differ from light weight materials like galvanized iron sheets to the heavier concrete or clay roofing tiles. These will warrant more bracing of the unit to carry these extra loads.

The reinforced concrete columns in a building could be finished using plaster render, cladding’s or left using the concrete color. No matter the finish, it will give good aesthetics to the wall facades. These columns might be erected free standing or within the building fabric. They might have the usual rectangular or square form, though it might also have the circular form. It is very important to measure the factors where to erect columns. This is to ensure that all the required supports are put in place before any cuttings are carried out safely.

The method of adding reinforced concrete columns, is by marking out all the points to add columns. The walls and roofs are supported making use of props and bracing. The columns ought to be place at all building corners and any load bearing walls intersections. The wall is cut carefully up to the beam the beam level. Concrete at the roof beam level is hacked and taken out to expose the reinforcement. The wall opening must have a masonry toothing. A pit is excavated for the foundation base and column starter bars. The base and the column is then cast and vibrated nicely.

The column starter is treated after 7 days. Extra reinforcement is put into the roof level and joined using the beam steel. Hoop iron is done at alternate courses passing through the steel from both wall ends. This is to permit the wall to become strengthened after the cutting. Form work is then carried out. Concrete is cast and vibrated. The form work is taken out after seven days of curing. The procedure is repeated at every point where are going to a reinforced concrete column. The appropriate finish is then carried out to fit with the existing wall surface facades.

This article might useful for you, talk about Reinforced Concrete Houses and the Climate.

Reinforced Concrete Foundation

How to do a reinforced concrete foundation

Foundations are utilized to carry the load of a building t the ground. This can be a secure soil bearing capacity. The foundation concrete that’s reinforced with steel permits buildings to be done more storeys upwards. This implies the concrete base will take more loads. The trench should be excavated to the necessary depth. This has to be difficult when tested with a mattock. Concrete must not be put in loose soils. This could trigger the house to collapse. The diameter for the reinforcement bars to use is from a quarter inch.

In a reinforced concrete foundation, the work commences by excavating a trench to necessary depths. The trench width is about two feet wide. The depth ought to be on hard ground and may differs from site to site. High yield bars are cut and linked together. They’re made into 3 long bars that could run the entire length of the trench. These would be the top bars. Extra bottom bars running the across the width of the trench are tied to the top ones. A spacing of 8 inches is done when mixing the reinforcement bars.

The foundation trench bottoms are created level to receive the concrete. A blinding layer of two inches thickness is then combined with the trench and made level. The Thickness of the foundation concrete is marked with steel pegs pushed into the blinding. This can mark the height of concrete which is eight inches thick. Reinforcement is then laid into the trench. This will not rest directly on the blinding layer. Spacer blocks are put below to permit the concrete to flow below. They offer cover to the steel. This spacers ought to be two inch thick.

When the reinfocement is positioned in the trench, concreting can proceed. Care ought to be taken to prevent debris entering the trench. This would be cleaned out. In the case of a sloping site, the foundation is stepped a complete masonry course. The concrete is combined in the ration of one part cement, two parts sand and three parts ballast. The set mix is then poured into the reinforcement. It ought to be leveled with pegs already placed. After that it spread as it is being vibrated. It ought to be completely cured for minimum seven days to attain strength.

Also read the article about reinforced concrete houses and the climate.

Steel Truss Detailing

More recently Steel truss are popular in residential and industrial construction and that’s the reason why require of steel truss detailing are raided everyday. A steel truss, or lattice structure, is a structural assembly of small interconnected components. Trusses could be built to match numerous requirements. There’s considerable design flexibility for roof trusses, but basic rules can be used as original guidelines. Steel trusses present efficient routes for distributing services. It could have a rectangular settings, steering clear of the potential intrusion of diagonal members, if the joints are rigid.

The nature steel truss enables the analysis of the structure uses a couple of assumptions and the application of Newton’s laws of motion according t branch of physics referred to as statics. For reasons of analysis, trusses are assumed to be pin jointed where the straight elements meet. This assumption implies that members of the truss is only going to act in tension or compression.

The individual steel truss frame will be fabricated and hot-dip galvanized in the shop. The frame unit From splice connector to splice connector will be completely assembled by welding the primary truss members and bolting the transverse angle members as found in the plans. All required attachment plates such as the bearing stiffeners, grating support plates, sole plates and light support member components ought to be attached in the shop as well.

The technique of temporarily shoring the truss elements will give a level and plumb alignment to ensure that excessive force isn’t necessary to align the truss elements and it can avoid damage to the truss system.

You can also read similar article about Steel Reinforced Concrete.

Steel Reinforced Concrete Detailing

When steel is embedded in concrete in a manner that aids it in carrying imposed loads, the mixture in called reinforced concrete. The steel might contain welded wire fabric or expanded metal mesh but more regularly it includes reinforcing bars.

These days, most of the buildings located in industrialized countries use steel reinforced concrete to create the buildings better tougher and better able to endure the ravages of time and weather. Reinforcing the concrete that is to be applied to the building adds tensile strength to the concrete, which makes it much more resilient and more flexible that standard concrete, which aids in preventing cracking and damage. Steel reinforced concrete works extremely well in many building applications, including floors, supports, beams, frames and walls.

Steel-reinforced concrete bridges are one of the most popular type of bridge constructed. Actually, almost all highway bridges is of this type and is most often encountered along interstate highways. For additional strength and support, the concrete utilized in constructing these bridges is usually reinforced with imbedded steel bars, normally referred to as rebar.

Reinforced concrete could fail because of insufficient strength, resulting in mechanical failure, or caused by a reduction in its durability. Corrosion and freeze cycles might harm badly designed or constructed reinforced concrete.

After this, you can also read similar article about Introduction to Steel Reinforced Concrete.