The decorative beams are constructed from concrete formed in form work that is designed with particular features. They are distinct from normal rectangular beams with a down stand. They are able to include arches or feature beams. The structural strength of concrete is maintained and only the exterior alters from the standard surface. The formwork is designed in the desired form before being fabricated. The details should be fabricated on external or internal beams in the process of casting concrete.
The decorative beams are placed on any flooring. The arched beams that are internal are designed for openings that do not have windows or doors. They can also be utilized when the door or window has an arched top. When they are external they are built between walls or columns at the entryway or on the verandas outside. The arch is measured at least a foot away from the end of the wall or column. The most prominent ones feature the pattern carved inside the work sides.
To create attractive feature beams begin by completing the side form work and then trace the pattern to be fabricated. Three or two pieces of timber with a thickness of 2 inches are used to create the decorative recess in the concrete. These pieces are then nailed to the side of the form work. In the case of a beam that is one and a half feet, three pieces are employed and separated equally. Half-round timber is utilized and the flat piece is attached to the side and the round portion is used to create the recess within the concrete.
Once the sides work is completed then it is put into the correct position. Prior to any further work taking place, it is thoroughly cleaned so that concrete does not stick to it. The reinforcements are then put inside , and once they are ready, concrete is cast as normal. The concrete is allowed to cure while being dried for at least seven days. The form work is taken care not to strike it off, thereby breaking the formed elements. The desired painting is then done using the exterior finishing.
In the realm of construction materials concrete is one of God’s best gifts to humanity! There’s there is no other way to describe concrete than that. The elements that make up concrete are abundant in nature and therefore, it is economical to create – as well as eco-friendly due to the fact that it does not have any products. Did you know that concrete is recyclable also? A further 10-points in the sustainability department.
Seven and seven and a half cubic kilometers concrete are made every year! There is more than a cubic meter concrete for every woman, child and cat on the planet! Concrete is used to construct many different structures, including roads, pipes foundations, bridges, parking areas, walls, and more than 50% of infrastructures! As user-friendly as it is, in all of its benefits that I’m not surprised.
Modern concrete is composed of a mix composed of Portland concrete, aggregate and water. The type of aggregate you use depends on the purpose you intend to utilize the product in the end. Mortar, for instance is basically Portland cement and sand, however concrete is a more coarse aggregate and sand. Despite its incredible compressive strength however, it is significantly weaker in strength in tensile, and has to be reinforced with an material that has more tensile strength to be dependable for the majority of building projects.
The most commonly used reinforcing material are steel “rebars” that is abbreviated as reinforcement bars. Other techniques and materials like grids, plates, or fibers are employed in lesser quantities but rebar is by far the most popular. There is also what’s known as pre-stressed cement, which is identical to regular reinforced concrete, except that the rebar on the tension face is positioned into tension just prior to the concrete pour and then released when the concrete has been cured.
In a typical concrete beam, there’s an “outer face” and an “inner face”. If the beam is subjected to an arc of flex, a curve will take shape. The outer face, also known as tensile, will feel tensile strain and the inside, or compressive face will be subject to compressive stress. The pre-stressed rebar that is placed on the outside of the beam results in an inbuilt compressive force on this face. That means that when loads are placed on the beam, the built-in compression will be reduced but it won’t translate into a tensile strength – until the load is able to overcome the compression of the rebar.
With all its amazing features You may be thinking about what the downsides are. It’s not all as many but there are some. Concrete will eventually develop cracks. We’re sorry, but it’s the truth. However well you’ve followed the rules you’ll never be able to escape of this one. This is another reason to reinforce. Cracks are inevitable, however the reinforcement will keep it in place and prevent the damage from becoming worse.
Because concrete has a very low thermal expansion coefficient and the repeated freezing and thawing cycles, they are among the primary factors that cause cracking of concrete. The preventative measures, such as the addition of expansion joints that take the strain of these cycles are extremely helpful in the preservation that your concrete has. Precast Concrete Beams are easily available and are very effective to do fast work in small time.
The design of beams is a subject of high fascination for structural engineers as well as contractors. Beam design is a crucial element in the creation and construction of a structure. Most structural beams consist of steel, wood, or concrete. Each of these building materials reacts differently when under the pressure of a load. Each offers its own distinct advantages.
Concrete beams are usually found in commercial construction like the construction of parking decks that are multi-level or hospitals, as well as large hotels. Concrete beams are also used for bridges as well as highway support. Certain concrete beams are utilized together with steel beams to give them extra strength. Modern concrete beams could comprise a hybrid that is a mix of conventional concrete and glass fiber reinforced polymer (GFRP) and Carbon FRP.
Concrete is a sturdy construction material, however it is prone to cracking and water damage. Iron bars are usually added to beams to provide the strength and stability of areas susceptible to stress. Concrete beams are also favored because of their capacity to absorb vibration and sound.
A very popular kind for steel beams is known as the I-beam. The I-shaped beams are sturdy and reasonably priced. Steel beams can support huge loads and not experiencing large amounts of deflection, as they distribute the weight of the structure on the Flange of the beam. Steel beams are able to be treated to prevent corrosion and oxidation, particularly when placed in close proximity to or under water, like for bridge construction.
Wood beams are commonplace in homes. They can be joined together or notched for extra strength. Wood beams are affordable and can be easily modified according to the requirements of a builder. However, they’re vulnerable to rot and infestation. Specially treated beams of wood are available now that can withstand decay, insects and moisture which makes them a desirable material for beams for the majority of homeowners.
Flitch beams are specifically designed beams that connect steel plates with adjacent wood panels, creating one structural beam. They are durable but are also less costly and lighter than steel beams. The structure of a flitch will result in a decrease of the overall dimensions of the beam. the wood exterior permits builders to secure the beam onto other wooden structures within the house.