Introduction to composite construction advantages of. Added to that, the forms shall be properly cleaned and oiled but not in such amount as to run onto bars or concrete construction joints. It offers acceptable and satisfactory performance in most cases. Once you have your floor plan design, you are now ready to plan for.
Solid floors are a lot more substantial and require the ground to be made up in layers of ground sub base, sand, compacted hard core, damp proof membrane, insulation and concrete. Slabs can be onground, suspended, or a mix of both. A floor is the bottom surface of a room or vehicle. Prior to the placement of reinforcement for concrete floor slab construction, inspect and check forms to confirm that the dimensions and the location of the concrete members conform to the structural plans. Concrete floor construction concrete construction magazine. Construction tn54 published in 1985 industrial floors and pavements. A good concrete floor must be even better built than a road. A guide to the home building manual final 1 october 2014 ii foreword. Structural design for residential construction cynthia chabot, p. It is assumed that this was not part of the original building and was added. The adoption of concrete floor footings speeds the completion of the ground floor. As such, loadbearing wall systems are presented in this chapter. Design and construction of concrete floors outlines the key principles needed for the production of a good floor which can be relied on to not only support and restrain other parts of the building, but also to meet the needs of the user.
Suspended slab under construction, with the formwork still in place. Guide for concrete floor and slab construction aci 302. Specific design requirements for concrete floor construction are found in aci 360r for slabsonground, aci 223r for shrinkagecompensating concrete floors, and aci 421. Exposed concrete floor and finishes, its construction and applications exposed concrete floors are suitable for various applications is used for warehouses, galleries etc. A six storey building for a commercial complex has plan dimensions as shown in figure 1.
Guide to concrete floor and slab construction author. The building is located in seismic zone iii on a site with medium soil. Foreword the quality of a concrete floor or slab is highly dependent on achieving a hard and durable surface that is flat, relatively free of cracks, and at the proper grade and elevation. But material limitations, design and construction practices, and severe exposure conditions can cause concrete to deteriorate, which may result in aesthetic, functional, or structural problems. The overall tendency is to shrink and this can cause cracking at an early age. Suspended slab formwork and rebar in place, ready for concrete pour. Acis guide for floor and slab construction, aci 302. Woodframe floor systems and concrete slabongrade floors are discussed in this chapter. Such floors have very specialized applications narrowaisle warehouses, but the techniques used.
Concrete floor slabs may be in situ or prefabricated. Manual for the design of reinforced concrete building. Types of construction type i this concrete and steel structure, called fire resistive when first built at the turn of the century, is supposed to confine a fire by its construction. Loadbearing wall systems of any construction type can and should be considered as part of building framing discussions. Precast concrete floor slabs are lifted from the ground up to the final height by lifting cranes. Phoenix, az posttensioned slabs reinforced concrete shear walls. The quality of a concrete floor or slab is highly dependent on achieving a hard and durable surface that is flat, relatively free of cracks, and at the proper grade and elevation. Concrete construction when a contractor finds that something wont fit, or when the architect or owner thinks that the walls arent vertical or straight or that the floors arent flat or level enough, someone is unhappy with the degree of tolerance achieved. Concrete block walls 9 masonry construction for crawl spaces 11 sill plate anchors 11 reinforcing in poured walls 11 masonry veneer over frame walls 12 notch for wood beams 12 protection against termites 12 chapter 4.
Raised wood floor assemblies may be constructed in any soil type. Reinforcing steel for slabs is primarily parallel to slab. Concrete slab floors come in many forms and can be used to provide great thermal comfort and lifestyle advantages. Cement concrete flooring is one of the most common types of flooring provided in houses. Steps to placing a superflat floor concrete construction. Structural concrete structures reinforced concrete construction. Wcd1 details for conventional wood frame construction. The titles listed below are available online in pdf. Depending on the shear strength of the steel brackets, additional lateral bracing may be required. Building regulations 4 plans construction detail drawings. Sci p300, composite slabs and beams using steel decking.
Lowest composite deckslab weight per square foot for the specified concrete. Cip 6 joints in concrete slabs on grade what are joints. Chapter 5 addresses the design of concrete floors as it relates to their constructibility. It is based on data and knowledge considered to be true and accurate and is offered for consideration, investigation and verification by the user, but we do not warrant the results to be obtained. The floor construction is robust due to the continuity achieved between the decking, reinforcement, concrete and primary structure. In platformframe construction, first floor joists are completely covered with sub flooring to form a platform upon which exterior walls and interior partitions are. With freezer rooms using insulated concrete floor and drop in panel floor remove the inside metal from the base of the panel for 75% of the floor insulation height. Rupture depth of an unreinforced concrete slab on grade pdf. Although coldformed steel framing for floor systems also is permitted by the irc, it is not covered here. Concrete floors are very durable and are relatively maintenance free during their long life.
This type of construction in which the building elements listed in ibc table 601 are of noncombustible materials, such as concrete. Fully enclosed foundations for raised wood floor construction are typically specified with continuous. Best practices guidelines for concrete construction. For technical classification purposes the determining factor has been first, the type of external wall construction and second, the roof and floor construction. However if there were any problems with the original laying of the base it is possible that, if you have an existing concrete floor, it may need some repair or maintenance after it has been down for a period of time.
Concrete floor slabs on ground 15 types of floor construction 15 basic requirements 15 combined slab and foundation 15. Commercial building structural design and analysis major. Floors types of floors methods of construction of floor. Speed of construction concrete floors can be constructed quickly. The exceptional durability of portland cement concrete is a major reason why it is the worlds most widely used construction material. The building code requirements for structural concrete code covers the materials, design, and construction of structural concrete used in buildings and where applicable in nonbuilding structures. There are 2 types of floor construction used in construction today. They can be insulated, both underneath and on the edges. Construction system, for definitive reasons, is the manner of constructing the whole or dominant part of the house 1. Where a special floor structure like a floating floor is laid upon another floor then both may be. Additional construction details drawings as well as the small selection of foundation, wall, floor and roof construction detail drawings shown here, many of the building notes have a related construction detail drawing, with specific dimensions eg rafter sizes, spans, insulations types, for purchase with the building.
For bca building classes 7 and 8 where the coldroom is greater than 10% of the building floor area, the ipca code of practice will apply. Concrete expands and shrinks with changes in moisture and temperature. Properties of the surface are determined by the mixture. Concrete industrial floor and pavement design t34 published in 1985 industrial floors and pavements. By concrete construction staff download the pdf version of this article. Design and construction of concrete floors sciencedirect. A lot of variety exists in flooring and there are different types of floors due to the fact that it is the first thing that catches your eye when you walk into a house, as it spans across the length and. Easy to construct and maintain economical as compared to tiles, marbles flooring stepbystep procedure for cement concrete floor construction first properly compact the earth in the plinth. An appendix for the structural design of foundations using limit state philosophy as foreseen by envec7, has also been included.
Chapter 3 design loads for residential buildings 3. Pdf guide for concrete floor and slab construction. Some postframe buildings built on concrete piers may also use a castinplace concrete floor, a raised floor system or a dirt or gravel floor. Reported by committee 302 american concrete institute. A concrete slab is a common structural element of modern buildings, consisting of a flat. Irregular cracks are unsightly and difficult to maintain but generally do not affect the integrity of concrete. Maybe the construction operations werent precise enough. Exposed concrete floor and finishes construction and. Flooring is the general term for a permanent covering of a floor, or for the work of installing such a floor covering. Posttensioned slabcolumn connection whe report 68, serbia and montenegro poured on the ground in forms, one on top of the other, as shown in figure 11. Acknowledgements issued also in french under title.
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