Chapter 12 cofferdams and seal courses pile buck magazine. Formscaffs coffer system is used to produce concrete slabs with a. Then rcc waffle slabs were built which resembled coffers and hence it is also called coffer slab. Waffle slab design and anlaysis as equivalent solid slab. Civil engineering design 1 analysis and design of slabs 20067 dr. Hand calculations for structural designs and details are. Design floors and foundations reliably and efficiently, saving time and money, and overcoming the most common concerns you face as a designer. Complete and integrated software for precast flooring. Prestressed waffle slabs knowledgebase concrete design c02. Determine the equivalent thickness of a solid slab, that is with the same section modulus. Dam is any artificial barrier and its appurtenant works. Design methods such as bandeddistributed flat slabs rely on yield line solutions even though designers treat it as a normal flexural design. Which type of slab is the most effective solution to concrete structures.
Design based on geotechnical engineering software including the following programs spw 911 by pilebuck international inc. Flat slab analysis and design designs beamless concrete slab floors flat slab or waffle slab in accordance with aci 318. However, there are some pitfalls to avoid, that often catch out the unwary. Safe is the ultimate tool for designing concrete floor. This is the compilation of the presentations available for grid slabs. Design of waffle slab in etabs tutorial part 1 youtube. When designing a waffle coffer slab, can the following method be used or are there errors or flaws in the approach. Integrated reinforced and posttensioned concrete slab design software. Slabs is a program that can be used by structural engineers to perform a static analysis and design of reinforced concrete slab systems of any shape, including suspended slabs and slabsonground. Download free demo updated august 8, 2019 soilstructure slab on grade software simplifies the calculation of a.
Find a new slurry wall machine that fits your needs and save as much as 50% over competing equipment. The focus is on roads and bridges highwaysnear the coast that are always, or occasionally during storms, influenced by coastal tides and waves. Reinforced concrete slab and beam design software adaptrc. Design of reinforced concrete structures ii twoway slabs. Aec 3d culvertsslabs is a solution helping civil engineers to quickly design and plan slab type cross drainage structures or minor bridges for highwaycanal projects.
A properly reinforced coffer or waffle slab can span the same distances as a regular slab would, weighing far less. The williams coffer slab system consists of removable plastic coffer. This calculator will estimate the require concrete volume to fill the width, height and depth given. A wide range of commercial software is available to aid designers with the efficient and economic design of steel framed buildings and bridges. In addition, the steel sector has developed a number of free software packages and spreadsheet tools to aid designers, which are presented here. To design the coffered panels, duffy says the som team essentially made a 3d map of the ceiling and capitals, and then segmented it into a taxonomy of pieces. Concrete design software for concrete beam slab design analysis software. The top selling software program with over 2000 users world wide. Economically design posttensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality. Cofferdam design braced sheet piles and a base slab. With the automated slab generation and design tools in safi, the longitudinal reinforcement required to withstand bending forces is calculated according to the design.
Each piece is a molded coffered panel measuring approximately 9 feet 2 inches by 8 feet 9 inches. What is the best reinforced concrete design software. Software including the following programs spw 911 by pilebuck international inc. Input uniformly distributed loads independent of slab geometry. Design of reinforced concrete structures ii twoway slabs 1 1. Analysis, design and investigation of beams, one and twoway slab systems, flat plate, flat slab, waffle slab and slab bands. A cofferdam is a structure that retains water and soil that allows the enclosed area to be pumped out and excavated dry. Increase your efficiency with bidirectional links to the industry leading bim products. Rcc design and detailing could be performed for ten different boundary conditions option to save the design. World leading software in geotechnical engineering. Finite element software is commonly used for flat slab design in first world.
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. The assembly of the coffer blocks is done on the ground before being lifted into position between the supporting ribs. Flat slab analysis, design and detailing pdf civil. He developed a project economic design of two way rcc slabs and this slab. The latest and most sophisticated design software has been used used to analyse and design the system. The coffer blocks used in the coffer slab are manufactured from plastic, making them light and easy to handle. The elements can be triangular, rectangular or quadrilateral. The lateral loads are independently resisted by shear walls. Complete design of rcc waffle slab using excel for punching shear check. Depending on the application, the ribs will be either precast concrete lattice ribs or wooden purlins. The kwikstrip system produces a coffer grid spacing of 0. Easy to use software becoming more widely available very accurate if used properly better than grillage.
Use the print button located on the right menu to print calculated data. This paper deals with the problem of optimum design of reinforced concrete twoway ribbed waffle slabs using genetic algorithms. They are either oneway spanning systems known as ribbed slab or a twoway ribbed system known as a waffle slab. Software for builders and remodelers chief architect. Reinforcement implementation, static and dynamic analysis for reasons regarding behaviour, safety and economical design, the twoway slab is far more efficient than the equivalent oneway slab. Static analysis using the reinforced concrete slab wall design utility provided reinforcement contour plots for the slabs and also provided. Whether the project is local or overseas, design codes from around the globe are available for reinforced concrete and posttensioned slab design. Simply input the data required within the appropriate box and select update button located of the bottom.
The result is less labor and quick and easy installation. 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. Cofferdams are commonly used for construction of bridge piers and. Inducta engineering concrete buildings design software. The williams coffer slab system has been designed for use in both commercial and residential applications and can be engineered to suit any project where concrete slabs are required. Flooroffice, the complete and fully integrated software solution for hollowcore flooring and precast industries, supports all types of prefab floors. Retainwall is a software mainly developed for the purpose of designing a concrete or masonry retaining wall. In this example we will design a cofferdam system, supporting a 20ft excavation. Dhex is a software tool that is made to demonstrate the chemical design calculations of double pipe hairpin heat exchangers. Reinforced concrete slab design and detailing guidelines for depth of slab, loads on slab, reinforcement guide for oneway and twoway slabs as per is 456.
Our design software will significantly assist a qualified engineer arrive at a solution which speeds the design process for floors and slabs. The structural modeling used in most commercially available software, where stems are considered as disjointed from the topping slab does not deliver the advantages associated with waffle slab slab construction. Posttensioned, reinforced concrete slab design software ram. In reality, sandwich slabs are ribbed slabs with a slab placed both to their upper and lower surface. However, when considering design for shear, the spherical void formers used in the cobiax system result. Oneway simply supported slab analysis and design of the slab similar to design of simply supported beam as indicate in the previous chapter. This spreadsheet program provides for the design and analysis of posttensioned concrete oneway beam and slab systems and twoway flat plate slab systems. Cofferdam design example braced sheet piles and a base. Avoid long narrow elements can lead to roundoff errors in some software. 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. And it requires a lot of redistribution to make it work.
The analysis and design follow the equivalent frame analysis. 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. Diy coffee table coffee table design glass coffee tables coffee cups home design wood table design live edge furniture outdoor furniture live edge table this live edge table design includes custom cut glass, 2 floating slabs. Two way slab design to aci free download and software. Static analysis using the reinforced concrete slab wall design utility provided reinforcement contour plots for the slabs. Pdf optimum design of reinforced concrete waffle slabs.
Cofferdam, cofferdam design, cellular cofferdams deep. Deep excavations deep excavation design and construction. Search all products, brands and retailers of slab calculations. For girder slab formwork, wooden or aluminum girders are crosswisemounted and covered with formlining of choice. Design of waffle slab without beams by direct design method 32 32 32 c 1 c 2 c 3 c 4 2 c. Design calculation of weight reduced concrete slabs. It helps you design from the simplest to very complex deep excavation systems. Nov 01, 2016 coffers were used in historical buildings even before rcc structures came into being. Jun 30, 2016 the purpose of this hec25 document is to provide guidance for the analysis, planning, design and operation of highways in the coastal environment hice. This catalogue does not contain any design detail but lists and depicts. Coffer dams can be classified into many types depending upon the depth, soil conditions, and fluctuations in the water level and type of. This pdf file contains a chapter of 23 pages with various aspects of flat slabs including four example of flat slab design.
The slab is represented by a mesh of slab segments called elements joined to each other at nodes. Conduit is an enclosed channel used to convey flows through or under a dam. The latest and most sophisticated design software has been used used to analyse and design. A waffle slab is a twoway concrete slab reinforced by ribs in two directions. Post tension slab design software structural engineering. Slab and column design for the great western hospital, swindon. For 1m slab width, moment, shear force, oneway continuous slab for continuous slab, moment and shear force can be obtained from table 3.
Jun 5, 2017 two way concrete joist system waffle slab. When coffers cover the ceiling and columns architect magazine. For 1m slab width, moment, shear force, oneway continuous slab for continuous slab. The program offers wide range of sophisticated features for precise design, planning, analysis and production of 3d2d drawings. Highly appreciated design and analysis tool, one in a kind. Types of cofferdams and their construction details. Technical advice centre toll free help line 0800 205 029.
The model and analysis have been designed with deepex shoring design software. Difficult beam and slab analyses are a thing of the past with our concrete design software. Download two way rcc slab designing excel sheet template. Concrete slab design software free download concrete. Design all columns in a building with the click of a button. Design the concrete floor slab system shown below for an intermediate floor with partition. Sandwich slabs may have the disadvantage of a larger weight compared to the ribbed. This spreadsheet is an extremely efficient tool and allows to quickly design two way slabs to aci code. This publication seeks to introduce fe methods, explain how concrete can be successfully modelled and how to interpret the results. Powered by a sophisticated fem solver increasing capacity and substantially speeding up solution for large and complex models, spmats v8. The installers formwork drawing of a twoway slab detailing and design of earthquake resistant buildings made of reinforced concrete. Slab calculations structural calculations archiproducts. Rcc design and detailing could be performed for ten different boundary conditions option to save the design projects in local storage. There is a lot of concrete design software and rightfully so, because concrete is used in so many ways.
Ribbed floors consisting of equally spaced ribs are usually supported directly by columns. Flat slab analysis and design free version download for pc. A program to design of two way slab by direct design method, a report submitted to the department of. Reinforced and posttensioned concrete slab design software. Transfer slabs can be used instead of beamand slab. The rcc slab designing tool is developed by shankar toyal, student of indian institute of technology, bhubaneswar. Twoway joist concrete slab floor waffle slab system. Finite element fe analysis, is a popular powerful computer method of analysing flat slab concrete structures. Technical note 5 slab does not adequately represent the mechanical properties of a stemmed floor system for analysis and design. Detailed calculation steps presented for verification.
Useful rcc slab design app with clean and intuitive user interface. Posttensioned concrete design spreadsheet program a pdh. Reinforced concrete slab design and detailing guide is456. A computer program is written using matlab to perform the structural analysis and design of waffle slabs by the direct design method. You can perform reinforcement designs, long term deflections, beam designs, reactions, automatic two way action, effective moment of inertia, and. 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. Design elevated concrete slabs with or without posttensioning. Cofferdam design braced sheet piles and base slab youtube. The program is divided into three separate screens, which correspond to the three major areas of concern in the design of a posttensioned member. Consider all major aspects of slab design including service, ductility, and strength limit states, codeprescribed requirements, longterm deflections, punching shear, and walking vibration.
Rcc slab design is a free app for designing one way and two way reinforced concrete slab systems as per indian standards. Here is two way rcc slab designing excel sheet template for download. How to design reinforced concrete flat slabs using finite. Cofferdam is a temporary structure enclosing all or part of the construction area so that construction can proceed in the dry. Concrete volume estimator calculator slab engineers edge. Millano complex cras justo odio, dapibus ac facilisis in, egestas eget quam. Reinforced concrete slab and beam design software adaptrc 2017 product overview 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. Concrete design software for concrete beam slab design. The software will do all the thermal calculations involved in the design. Slab formwork essentially consists of a horizontal loadbearing structure which supports the formlining and transfers the forces into the shoring. Suspended slabs can include flat, twoway, waffle, and ribbed framing systems. Jan 01, 2012 wall street business magnate stephen chu, winner of the strathmores whos who registry honoring the most successful business tycoons in the world, says the demolisher betting system lived up exactly to its billing.
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