A suspended ceiling is not needed as services are contained in the suspended floor above the slab. This strip can then be analyzed by the methods that were used for rectangular beams, the bending moment being computed for the strip of unit width. Find, read and cite all the research you need on researchgate. They can be used in a variety of applications such as bridges, piers, building floors, roof systems, detention vault lids and boat launches. Filler slab as a continuous tbeam slab low cost as well as increased strength conference paper pdf available january 2015 with 4,532 reads how we measure reads. Slab design reading assignment chapter 9 of text and, chapter of aci31802 introduction aci318 code provides two design procedures for slab systems. A coffer or coffering in architecture is a series of sunken panels in the shape of a square, rectangle, or octagon in a ceiling, soffit or vault. A series of these sunken panels was often used as decoration for a ceiling or a vault, also called caissons boxes, or lacunaria spaces, openings, so that a coffered ceiling can be called a. Coffers were used in historical buildings even before rcc structures came into being. Slab thickness, t area of steel provided, as pca note. Then rcc waffle slabs were built which resembled coffers and hence it is also called coffer slab. Flat slabs may have drop panels at columns and columns may have capitals. Get instant access to entire tilton box beam coffered ceiling today.
The analysis and design follow the equivalent frame analysis method of the aci code, which considers a onebay wide strip of the floor system as a continuous frame. Flat slab analysis and design designs beamless concrete slab floors flat slab or waffle slab in accordance with aci 318. The ribs between the troughs are reinforced to act as down stand concrete beams. Twoway joist concrete slab floor waffle slab system analysis and design design the concrete floor slab system shown below for an intermediate floor with partition weight of 50 psf, and unfactored live load of 100 psf. Sep 03, 2011 reinforced concrete effective span centretocentre distance between supports longer dimension of a rectangular panel of slab for yield line calculations modular ratio esec design bending moment per unit width of slab modified to account for axial load moment per unit width about xaxis moment per unit width about yaxis. Reinforced concrete effective span centretocentre distance between supports longer dimension of a rectangular panel of slab for yield line calculations modular ratio esec design bending moment per unit width of slab modified to account for axial load moment per unit width about xaxis moment per unit width about yaxis. The false celling is usually provided for temperature control heat insulation for ac, to install lights, or to conceal electrical and other networking cables and ugly or too high ceiling.
Powered by the equivalent frame method of analysis and design per latest american aci 31814 and canadian csa a23. The best tilton box beam coffered ceiling free download. The lateral loads are independently resisted by shear walls. This kind of slab is frequently used in a commercial and industrial estate. Tips for laying rcc slab roof on 12092014 9091 views 3 comments rcc slab laying is one of major step in any type of construction so it is mandatory to know all the points related to laying rcc slab.
Case study on effective and elegant view of coffer slab. Uhpc link slab design uhpc workshop june 28th, 2017 jim scarlata, p. Analyses are for a onebaywide strip using the equivalent frame analysis method of the aci code. This paper represents that in the commercial building for the architectural consultant to design and shape by the coffer slab with different types of moulds. Coffered slab beam structure precast concrete scribd. Styrodur layer 10 cm thick and ferroconcrete layer 12 cm thick were performed over coffered slab. Manual for the design of concrete and reinforced concrete structures of heavy. Dwg viewer is a free dwg viewer that enables you to view autocad files quickly and accurately. A coffer slab is a type of forms of a slab which has twosided reinforcement fixed outside the mould to give an aesthetic shape of the mould which appeared in the waffle slab. False ceiling is an example of modern construction and architecture in both residential. The program reads dwg, dxf, and dwf files without converting them to raster images. Pdf filler slab as a continuous tbeam slab low cost as.
Flat slab seminar report, ppt, pdf for civil engineering. The slab rests on steel tbeams with flanges oriented in the bottom. Adaptrc is for the analysis andor design of reinforced concrete beams, slabs and floor systems. A civil engineer must know all the aspects regarding the flat floor system. The advantage of a coffered slab compared to traditional reinforced concrete slab is a possibility of bridging large spans.
Coffered slabs as a perspective type of the reinforced concrete. Our plans taken from past issues of our magazine include detailed instructions cut lists and illustrations everything you need to help you build your next project. Formscaffs trough system is used to produce a one way spanning concrete slab with a multiple inverted gutter shaped soffit finish. The new formscaff coffers can support a slab thickness of 0. The concrete deck slab in this region shall be roughened to amplitude of 12. Case study on effective and elegant view of coffer slab ijariit. Economy of construction is obviously an important consideration, but this is a qualitative argument until specific cases are discussed, and is a geographical variable. Experimental study of two way half slab precast using. Also explore the seminar topics paper on flat slab with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year civil engineering ce or ieee civil construction btech, be, mtech students for the year 2015 2016. Lakes environmental slab view emergency release dense gas. Late 16th century coffered ceiling of santa maria in aracoeli, rome coffering on the ceiling of the pantheon, rome 9.
Flat slab analysis, design and detailing pdf civil engineering. Flat slab system is an important division of concrete floor system. As part of the rei coop family, were dedicated to making websites and mobile apps that help outdoor enthusiasts connect, share information and get out into the places they love to play. With the reduction in concrete self weight, large spans can be achieved without the use of prestressed cables, providing the imposed loads are low. False ceiling is provided below the roof slab on suspended supports.
Coffered slab free download as powerpoint presentation. An ebook reader can be a software application for use on a computer such as. A waffle slab or twoway joist slab is a concrete slab made of reinforced concrete with concrete. Gilded coffering on a barrel vault of the apsis in nazare, portugal giuliano da sangallos flat caisson ceiling, basilica di santa maria maggiore, rome decorative coffered slabs in historical structures coffering on the arch of septimius severus, rome a series of these sunken panels were used as decoration for a ceiling or a vault, also called. Explore flat slab with free download of seminar report and ppt in pdf and doc format. Anchoring of link slab the portion of the link slab beyond the unbonded length is used to anchor it into the concrete deck slab. Coffered slab, concentrated load, winklers model of styrodur, ultimate limit state 1. Yoder lumber product showroom 7100 county rd 407 millersburg, oh 44654 phone. Rcc slab laying is one of major step in any type of construction so it is mandatory to know all the points related to laying rcc slab. Solid slabs can be designed and produced with mild reinforcing or by adding prestressing strands. Decorative grid slabs in historical structures apsis in nazare, portugal tomb of galileo, vatican city arch of septimius severus, rome 8. Twoway joist concrete slab floor waffle slab system. Depending on the application, the ribs will be either precast concrete lattice ribs or wooden purlins.
Pdf coffered slabs as a perspective type of the reinforced. This model is an ideal tool to predict hazardous zones and potential impacts of accidental releases. Performance of bridge deck link slabs designed with ductile. Ceiling grid, drywall grid, trims, and, transitions for every project need. Here is a detailed article with all the information regarding procedure of rcc slab roof laying. An easytouse and learn software for the design, analysis, and investigation of reinforced nonprestressed concrete beams, beam frames, slabs and floor systems a must have production tool in every structural engineering office. Do structural requirements influence the choice of slab type. Features of the grid slab they are used on flat sites. A suspended ceiling is not needed as services are contained in the suspended floor above the.
The slab model is an atmospheric dispersion model for denserthanair releases. Axonometric view of a mathematical model of the structure is. It is almost ideally castoff in roof and floor slab. Here, we have tried to gather various reading materials available in the web about flat slab floor system in one place. As part of the rei coop family, were dedicated to making websites and mobile apps that help outdoor enthusiasts connect, share information and. Decorative grid slabs in historical structures contd.
Nov 01, 2016 coffers were used in historical buildings even before rcc structures came into being. Pdf to dwg converter is a powerful tool that easily converts pdf files. Slab view is a graphical user interface for the slab model. The kwikstrip system produces a coffer grid spacing of 0. The williams coffer slab system consists of removable plastic coffer blocks suspended between a series of parallel ribs spanned across the area where a concrete slab is required. Small 9x6 medium 11x10 large 15x11 xlarge 18x12 quality adjustment.
Learn more about this and other new solutions from armstrong ceilings. The flooring composite slab is made of concrete, steel reinforcement and profiled sheets t153 ruukki serving as a permanent formwork. The first floor of the twostorey office building consists of a series of coffered precast concrete slabs supported on precast columns. Specify views that have been sent to layout to update in real time, or use edit tools. Comparative study of reinforced concrete flat slabs with and. To reduce the stiffness of the link slab, debonding of the link slab over the girder joint for a length equal to 5% of each girder span was also recommended. The size, spacing, and type should match that of the adjacent concrete deck. This is the compilation of the presentations available for grid slabs on slideshare. Coffered slabs as a perspective type of the reinforced concrete structures article pdf available in matec web of conferences 86.
Coffers can be supported on both the kwikstrip and kwikdeck systems. Introduction coffered slab consists of series of ribs on a small distance from each other and thin plate over them. Free search access too and organized database of free woodworking plans forestrivercedarcreek40cck. Late 16th century coffered ceiling of santa maria in aracoeli, rome coffering on the.
Analyze and design flat slab or waffle slab floors. Flat slab analysis and design free version download for pc. Connecticut soapstone 22 vermont drive willimantic, ct 06226 phone. The load per unit area on the slab becomes the load per unit length on the slab strip. The result is a flat slab soffit with the benefit of using flat slab formwork. This link slab concept can be used for new bridge decks and also for replacement of deteriorated joints of existing bridge decks. Quiet noisy spaces, redefine the ceiling plane, and add warmth to interiors with new feltworks blades and acoustical panels. Dec 01, 2016 features of the grid slab they are used on flat sites.
Solid slabs can be cast with specialty inserts for lifting, mounting or connecting hardware. Typical interior masonry bearing wallfooting detail. Armstrong ceiling solutions commercial ceiling, grid. Cetco offers a variety of standard details in both autocad. Working with toolbars and tool buttons in multiple windows. Although the carrying capacity is still slightly lower than the monolith reinforced concrete slab system, the proposed half slab system is able to apply as the structural component.
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