Manual for design and detailing of reinforced concrete to the september 20 code of practice for structural use of concrete 20 2. The rib reinforcement follows the same rules with the beam reinforcement. Users of the software can specify any configuration of typical top and bottom reinforcement wire mesh by bar size or. Features of the grid slab they are used on flat sites. It also checks the reinforcement detailing to ensure that the design is codecompliant and. Sofistik reinforcement detailing significantly accelerates the creation of 2d reinforcement sheets out of 3drebar models in revit. Founded in 1904 and headquartered in farmington hills, michigan, usa, the american concrete institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete. Using this column design software you can analyse and design piles, columns, beams, solid slabs and ribbed slabs straightforward, working to ec2, bs8110 and hong kong design codes. Manual for design and detailing of reinforced concrete to.
Adc analysing and designing reinforced concrete beams. The actual process of detailing has not changed dramatically. Reinforced concrete design 1 design of slab examples. A slightly deeper section is required but these stiffer floors facilitate longer spans and provision of holes. Structural ribbed concrete slabs the cupolex floor slab can be fully or partially suspended on piles, stem walls or gradeedge beams. The reinforced concrete waffle slab ribbed slab cross section reinforcement detail comprises ribbing beams reinforcement, slab top wire mesh, waffles dimensioning, voids width and depth, slab. Twoway joist concrete slab floor waffle slab system. Twoway concrete floor slab with beams design and detailing design the slab system shown in figure 1 for an intermediate floor where the story height 12 ft, column crosssectional dimensions 18 in. Adc is the ultimate beam design software for concrete column design. Additional reinforced internal ribs are then used in the slab by introducing pontex, the structural cupolex accessory to provide a structure capable of spanning between foundations or piles.
The amount and location of mild reinforcement placed in the slab is a function of userdefined design strips and typically specified reinforcement. Cross sections of twoway concrete floor at the slab edge. Oasys adc will automatically work out the worst moment and shear envelopes of applied patched loads. The spacing between the ribs should be in general 2030 inch. Reinforced concrete modeling and detailing software. A flat plate system will be considered first to illustrate the impact longer spans and heavier applied loads.
Products books volume a the reinforcement ii slabs ribbed slab. The aim of the project is to learn more about structures behaviour what will help to find new design methods, both computer aided and ready solutions in form of tables and diagrams. Planbar is the cad solution specifically for the precast concrete industry. Detailing and design of circular rcc slab using etabs tutorial one way circular rcc slab is a simply simply supported slab in most cases twoway circular slab design and detailing using autocad. Creation of bar lists, bending schedules and cut lists for wire meshes is included as well. The main reference for detailing is the istructe standard method of detailing structural concrete, 3rd edition, which is named as ncci in the uk national.
Ribbed and waffle slabs they provide a very good form of construction where slab vibration is an issue, such as laboratories and hospitals. Working with design of a reinforcement concrete slab. Introduction to ribbed slab design using safe2016 youtube. Ribbed or waffle slab is a slab system which consists of series of parallel reinforced concrete t beams framing into reinforced concrete girders. Ribbed rafts can be used for many structures when a flat level for the first floor is not required. The floor system of a structure can take many forms such as in situ solid slab, ribbed slab, or precast units. It has got detailed worked example of all cocncete elements, including ribbed and waffle slabs. The program calculates and details the slab reinforcement, either as an arrangement of individual bars, a pattern of prefabricated meshes, or a combination of both. The best book to refer to is reinforced concrete design to eurocode by bill mosley. For design such this slab i mean detailed reinforcement can be in robot. The girders on the raft may be either down or up the slab. Bamtec carpet reinforcement system advantages, design.
Slabs beam reinforcement detailing linkedin slideshare. The program also checks the reinforcement detailing to ensure the design is codecompliant and buildable. First, find number of rods required for main reinforcement and distribution. Simply supported one way slab main reinforcement effective depth.
Slab supported on two sides and bending takes place predominantly in one direction only is called one way slab. Waffle slab plan view reinforcement detail faculdade. Slab supported directly by columns are called flat slab. The product consists of software and a set of families, which can easily be modified to meet national or company standards. Fire test of concrete slab reinforced with epoxycoated bars. Therefore, main reinforcement is placed in the shorter direction, while the longer direction is provided with shrinkage reinforcement to limit cracking, as shown in figure 8. The slab is the flange of the beam and the extended part is the web. However, many detailed provisions are different to those that were in bs 8110. Slab may be supported on walls or beams or columns.
Ribbed slabs oneway joists introducing voids to the soffit of a slab reduces dead weight and increases the efficiency of the concrete section. Reinforcement concrete slabs are used in floors, roofs, and walls of buildings and as the decks of bridges. The minimum required reinforcement in the support areas is provided in two alternative ways. A ribbed raft consists of a stiffened slab by girders in x and ydirections. Pdf optimum design of reinforced concrete waffle slabs. Ribbed slabs are made up of wide band beams running between columns with narrow ribs spanning the orthogonal direction. This software program should be useful to rebar detailers working in construction and civil engineering projects. The ribs are tapered in crosssection in its lower part. L center to center distance between the support b depth of slab. Models can have columns, braces, walls, and ramps connected from the floors above and below. This structural design software is easy to use and is ideal for both building and foundation designers to assist with column design and more.
The other half span rebars are formed with a straight length. Waffle slabs tend to be deeper than the equivalent ribbed slab. Slab reinforcement tool slab reinforcement tool creates reinforcement to irregularly shaped concrete slabs. Reinforced concrete modeling and detailing software with proconcrete software you can model reinforced concrete with any combination of reinforcing, as 3d parametric objects.
Generates sorted, weighed and accumulated bar lists. Planbar combines the advantages of threedimensional models and excellent drawing preparation. Effective span of slab shall be lesser of the two 1. Detailing and design of rcc circular slab using etabs tutorial. The reinforcement areas are calculated automatically from the strap finite element analysis results. However, mainly as far as the stirrups are concerned, the amount of placed rebars is not as large as it is in beams. Slabs may span in one direction or in two directions and they may be supported on monolithic concrete beam, steel beams, walls, or directly by the structures columns. At the point when the depth of web or rib in a beam crosses 750 mm, the side face reinforcement of cross sectional area at the very least 0. To obtain the moment on ribs you can present the moment along ribs direction and then divide this moment by spacing between ribs. 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. Reinforced concrete detailing software and automatic bar bending schedules. Reinforced concrete design examples geotec software. Ribbed and waffle slabs types, advantages, disadvantages. Suspended slabs can include flat, twoway, waffle, and ribbed framing systems.
This way, you can work depending on project and status, as required by your personal workflow. How to detail reinforcements of twoway slabs quora. Rebarwin is a rebar detailing software application. Reinforcement detailing of reinforced concrete slabs. It is also possible to splice the reinforcing bars. See more ideas about reinforced concrete, civil engineering and civil engineering construction. Design of slab examples and tutorials by sharifah maszura syed mohsin example 1. The reinforcement is created as reinforcing bar reinforcement that represents a steel bar used to reinforce a concrete structure the steel bars are usually ribbed and they are used to increase the tensile strength of concrete. Reinforcement detail of waffle slab cross section this is basically a cad dwg drawing with a typical waffle slab cross section reinforcement detail. This system is cost effective, because finite element analysis in which a detailing software is integrated and manufacturing robotics are combined in bamtec system, around 75% of materials employed in cut and bent reinforcement is needed in this system. Slab reinforcement and beam reinforcement details daily. Slab reinforcement tool creates reinforcement to irregularly shaped concrete slabs. For modeling of this slab it can be from orthotropic slab.