Part 2 deals with construction using in-situ concrete as a wall material as distinct from use, when reinforced, as a material with which to construct only a building's frame
Part 2 deals with construction using in-situ concrete as a wall material as distinct from use, when reinforced, as a material with which to construct only a building's frame CIRIA.
In situ concrete is used for foundations and for structural skeleton frames
In situ concrete is used for foundations and for structural skeleton frames. In low-rise buildings, where vertical gravity loads are the main concern, a number of framing systems are used to channel the flow of load through the floors to the columns for spans of six to 12 metres (20 to 40 feet). Concrete block walls with brick facing and punched openings (discrete windows entirely surrounded by the facing material) spanned by concealed steel lintels can be used for exterior bearing walls where the interior is a skeleton frame of steel or timber. The use of interior bearing walls so greatly reduces the flexibility needed in these buildings that they are only rarely found.
Framed building, structure in which weight is carried by a skeleton or framework, as opposed to being supported by walls. Steel and reinforced concrete are the most common materials in large contemporary structures. The essential factor in a framed building is the frame’s strength. Timber-framed or half-timbered houses were common in medieval Europe. During the 19th century, brick or stone walls continued to bear loads, though cast-iron framing was sometimes used supplementarily, being embedded in walls or sometimes freestanding.
mass construction Building materials are used in two basic ways
mass construction Building materials are used in two basic ways. In the first way they are used to support the loads on a building and in the second way they are used to divide the space in a building. Walls made up of blocks both support the building and divide the space in the building. 2. In another type of construction, sheet materials are used to form walls, which act as both space-dividers and structural support. Timber, concrete and some plastics can be made into large rigid sheets and fixed together to Unit 1: Properties and shapes Page 8 of 9. form a building. These building are lighter and faster to construct than buildings made up of blocks.
A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel-reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior paving.
In book: Non-Destructive Testing in Civil Engineering 2000, p. 83-592. p The new concrete Standards give rules for in-situ checking if the hardened concrete in structure achieved the designed compressive strength according the request the class of concrete. Cite this publication. Using the different examination methods will be the main aim on evaluations of concrete strength, always in comparing with requested design class.
Precast concrete frames are cast in the same way as precast concrete . Totally precast concrete floors are composed of units, which are totally cast at the plant.
Precast concrete frames are cast in the same way as precast concrete cladding, but as they are designed as structural elements have heavier reinforcement than is required for non-structural cladding. Elegant connections are required between columns and beams to transfer considerable forces without adversely affecting the visual appearance of the frame. The precast walls can be load bearing or only partition walls.
CivilDigital E-Books & Journals Building Technology e-books Various Types of In-situ Concrete Floor Systems. This system consists of beams framing into columns and supporting slabs spanning between the beams Figure. It is a very traditional system. Various Types of In-situ Concrete Floor Systems. There are many concrete floor systems from which the designer can select an economical and technically satisfactory solution. Traditionally, concrete floor systems are reinforced using bars, fabric or using high-strength strand which is stressed. The relatively deep beams provide a stiff floor capable of long spans, and able to resist lateral loads.
Concrete slabs can be prefabricated off-site and lowered into place or may be poured in-situ using formwork Excellence in architectural technology.
Concrete slabs can be prefabricated off-site and lowered into place or may be poured in-situ using formwork. If reinforcement is required, slabs can be pre-stressed or the concrete can be poured over rebar positioned within the formwork. It spreads the load imposed by a number of columns, walls, and so on, over a large area, and can be considered to ‘float’ on the ground in a similar way to a raft floating on water. It is often used for lightly-loaded buildings on weak or expansive soils such as clays or peat. For more information, see Types of raft foundation. Excellence in architectural technology.