Slab engineering reinforced concrete slab design assistant. I am submitting it to you and i want students or professional engineers to download it and use it for their studies or projects. Rcc slab design is a free app for designing one way and two way reinforced concrete slab systems as per indian standards. Powered by the equivalent frame method of analysis and design per latest american aci 31814 and canadian csa a23. Detailed flexural and shear reinforcement with aci torsion effects and. If a slab is supported on all the four sides but the ratio of longer span l to shorten span b is greater than 2, then the slab will be considered as one way slab. On the other hand one way slabs span in shorter direction and is designed for one way bending. Models can have columns, braces, walls, and ramps connected from the floors. Slab types can be decided through side ratio calculation through bs8 110 reference such. Oneway wide module joist slab in the lower middle is a variation on the oneway. Yes, the software does check one way shear in two way slabs. If the ratio of longer span to shorter span is more than two, the slab is considered as one way slab and the same is designed considering that only shorter span contributes the load and bending moments.
Design of slab examples and tutorials by sharifah maszura syed mohsin example 1. Chapter 3 design of rectangular beams and oneway slabs 12. For example, when parallel walls connect to either side of a continuous slab, oneway action results. One way slab has two types namely simply supported slab and one way continuous slab. To enforce one way action, assign small m11 or m22 stiffness modifiers to the slab. The ratio lb which is less than 2 is known as two way slab. Safe provides unmatched benefits to the engineer with its truly unique combination of power. In this video you will learn how to analyze and design different slab types plate and ribbed slabs prota software. 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. Detailing and design of earthquake resistant buildings made of reinforced concrete. One way slab is supported by two parallel beams or walls. One way slab design simplified online design of concrete structures. Design of a two way rcc slab structural engineering. Reinforced concrete slab and beam design software adaptrc.
This spreadsheet program provides for the design and analysis of posttensioned concrete one way beam and slab systems and two way flat plate slab systems. One way wide module joist slab in the lower middle is a variation on the one way. A one way slab is a slab in which its length divided by its breadth is greater than or equal to 2. Design of a two way rcc slab structural engineering forum.
An easytouse and learn software for the design, analysis, and investigation of reinforced nonprestressed. Ce 433, fall 2006 slab design example 1 6 design a oneway slab for an exterior bay of a multistory office building using the information specified below. Oneway slabs one way slabs are the easiest to design as the direction is simple and are usually designed as set of beam strips spanning in one direction. Aug 15, 2016 download code one way slab design spreadsheet. Analysis and design of slabs one way civil engineers pk. Download free demo updated august 8, 2019 soilstructure slab on grade software simplifies the calculation of a. This spreadsheet is an extremely efficient tool and allows to quickly design two way slabs to aci code. Rectangular beams and oneway slabs page 3 of 9 design of rectangular beams and oneway slabs continued a. Suspended slabs can include flat, twoway, waffle, and ribbed framing systems. In this specific case the bars provided are o10100. It is based on a single story frame, featuring the equivalent frame modeling of the aci code as an option. In this channel you can learn about online civil engineering softwares. Oneway slab design spreadsheet civil engineering community. Slab consists of two types which are one way slab and two way slabs.
This system is similar to the twoway flat plate system except there is a drop panel to provide extra thickness around the columns. The program is divided into three separate screens, which correspond to the three major areas of concern in the design of a posttensioned member. Design of an oneway reinforced concrete slab with rcsolver software program according to eurocode 2 specifications. One way slab is a slab which is supported by beams on the two opposite sides to carry the load along one direction. Bondek design softare welcome to the lysaght bondek design software user guide. Advanced slab design mode enables concrete slabs defined with or without holes to be designed using the ramconcept or adaptbuilder software. Slab support condition solid slabs continuous at one end solid slabs continuous at both ends simple span solid slabs cantilever. In the absence of advanced analysis software, like fem modelling, it was necessary to idealize the slabs, oneway or twoway slabs, to use direct methods for the design. Total load is carried in the direction perpendicular to the supporting beam. Two way slabs are normally supported from four sides.
Types of one way slab one way slab may be solid hollow ribbed 6. Sep 12, 2019 a one way slab is a slab in which its length divided by its breadth is greater than or equal to 2. Calculate aspect ratio aspect ratio 2 longer spanshorter span 2. The spreadsheet named rcc31 designs to bs 8110 and it is free. One way slab is supported on two opposite side only thus structural action is only at one direction.
Two way slab design oneintheeye structural 3 jun 08 05. Calculation of approximate depth from deflection criteria cl 23. Application of lb ratio in first figure slab is supported on two opposite sides only. Selection of exposure classifications a1, a2, b1 and b2. For the simplicity in design, one way slabs are designed in per meter strips. Posttensioned, reinforced concrete slab design software ram. Design new and investigate existing reinforced concrete beams, standard and wide module joists, and one way slab systems. According to the way loads are transferred to supporting beams and columns, slabs are classified into two types. Safe is the ultimate tool for designing concrete floor and foundation systems.
Our design software will significantly assist a qualified engineer arrive at a solution which speeds the design process for floors and slabs. Nov 27, 20 one way slab oneway slabs are those slabs with an aspect ratio in plan of 2. Analysis and design of one way and two way slab in staad. May 02, 2017 one way slab is a slab which is supported by beams on the two opposite sides to carry the load along one direction. In the absence of advanced analysis software, like fem modelling, it was necessary to idealize the slabs, one way or two way slabs, to use direct methods for the design. In its design mode, the program determines the deflection and reinforcement for a user defined geometry, material and loading.
Generally, there are two types of slab which are one way and two way slabs. Slab is one of the most famous part of a construction project. Two way slab design by direct design method as per aci 31811. These modifiers, available through assign area stiffness modifiers, should be applied relative to the local axes and the desired direction of one way action. Load transfer in a oneway slab, b twoway slab nilson fig. For 1m slab width, moment, shear force, oneway continuous slab for continuous slab, moment and shear force can be obtained from table 3. Jun 14, 2017 download two way slab design excel sheet template. In other words, it can be said that, twoway slabs span in both directions. One way slab design simplified online design of concrete. Adaptrc is for the analysis andor design of reinforced concrete beams, slabs and floor systems.
Two way slab design by direct design method as per aci 31811, step by step procedure and limitations of direct design method for two way slab is presented. Lb2 is one way slab lb examples and tutorials by sharifah maszura syed mohsin example 1. Definition of one way and two way slab with images. Slab types can be decided through side ratio calculation through bs8 110 reference such as. Oneway simply supported slab analysis and design of the slab similar to design of simply supported beam as indicate in the previous chapter. One way and two way slabs as floor systems are the most conventional forms of. Oneway shear results are available through display show reinforcement display type change to shear reinforcement. Here ratio of longer span of slab to the shorter span of slab is greater than 2.
This check is based on design strips, and follows a procedure similar to that for beam shear design. This system is similar to the two way flat plate system except there is a drop panel to provide extra thickness around the columns. From framing layout all the way through to detail drawing production, safe integrates every aspect of the engineering design process in one easy and intuitive environment. Two way slab design to aci free download and software. Simply supported slab upliftment of corners continuous slab no upliftment. Reinforcement implementation, static and dynamic analysis the structural frame consists of four columns, two beams and one slab. One way shear results are available through display show reinforcement display type change to shear reinforcement. Difference between one way slab and two way slab simple.
Slabs are usually used in floor and roof construction. For example, when parallel walls connect to either side of a continuous slab, one way action results. To enforce oneway action, assign small m11 or m22 stiffness modifiers to the slab. While two way slabs also consist of two types namely simply supported two way slab and constrained slab.
Chapter 3 design of rectangular beams and oneway slabs. The design of a oneway slab will lead to reinforcement mainly in the bearing direction. Nov 14, 2018 in this video lecture you are able to learn about analysis and designing of rcc slab by using staad pro v8i software. For uniformly distributed loads of w per square foot of the slab, each strip acts approximately like a simple beam uniformly loaded by its share of w. The rest of the floor can be slightly thinner with less dead weight. Twoway slab design panel select boundary condition of slab for upliftment of corners. Download two way slab design excel sheet template for free. Usually, when a slab is supported by a beam the support is considered to be pinned. Rcc design and detailing could be performed for ten different boundary conditions option to save the design projects in local storage. Slabs having supports on less than four sides can be designed as one way. Design floors and foundations reliably and efficiently, saving time and money, and overcoming the most common concerns you face as a designer. Slab engineering reinforced concrete slab design assistant becomes the ultimate tool for slab design in a simple and intuitive way.
Civilax is the knowledge base covering all disciplines in civil engineering. In a oneway slab the need for reinforcement appears mainly in the span and along the bending direction. 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. When a rectangular slab is supported on all the sides and the lengthtobreadth ratio is less than two, it is considered to be a twoway slab. Ram concept contains an advanced feature set that allows for the design of a wide variety of floor systems including posttensioned, reinforced concrete and hybrid systems, elevated slabs and matraft foundations, oneway slabs, twoway slabs, beams, and joist systems. The oneway slab is deflected in one way direction and primary reinforcement is placed in one direction whereas. Safe provides an immensely capable yet easytouse program for structural designers, provideing the only tool necessary for the modeling, analysis, design, and detailing of concrete slab systems and foundations. These modifiers, available through assign area stiffness modifiers, should be applied relative to the local axes and the desired direction of oneway action. The following simplified design is valid when length2width of slab and for 15ft or 4. Calculate hmin and round it to higher 10mm multiple. Simply supported one way slab a rectangular reinforced concrete slab is simplysupported on two masonry walls 250 mm thick and 3.
Detailed calculation steps presented for verification. Useful rcc slab design app with clean and intuitive user interface. One way slab design spreadsheets to eurocode 2 engineering. On the other hand oneway slabs span in shorter direction and is designed for one way bending.
Plan view of floor system assume partitions will not be damaged by deflections. Economically design posttensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality. This spreadsheet program provides for the design and analysis of posttensioned concrete oneway beam and slab systems and twoway flat plate slab systems. Flat slab analysis and design free version download for pc. In a finite element software like scia engineer, when the slab is supported. Flat slab analysis and design designs beamless concrete slab floors flat slab or waffle slab in accordance with aci 318. Posttensioned concrete design spreadsheet program a pdh. Ram concept contains an advanced feature set that allows for the design of a wide variety of floor systems including posttensioned, reinforced concrete and hybrid systems, elevated slabs and matraft foundations, one way slabs, two way slabs, beams, and joist systems. Reinforced concrete design 1 design of slab examples and.
Analysis, design and investigation of beams, one and twoway slab systems, flat plate, flat slab, waffle slab and slab bands. Analysis results from software are directly used in design. The following simplified design is valid when length2width. The slab has to carry a distributed permanent action of 1.
The ratio of longer span l to shorter span b is equal or greater than 2, considered as one way slab because this slab will bend in one direction i. Yes, the software does check oneway shear in twoway slabs. Bondek works as composite slab saving on concrete and reinforcement costs. However, a slab with length breadth ratio of not less than 1. Dec, 2017 in other words, it can be said that, two way slabs span in both directions. Summary of bill of quantities civil works bar bending schedule. One way slab being supported on two opposite sides only leads to the structural action in single direction. The necessary bars derive from the calculated required reinforcement. One way slabs are such slabs in which the loads are shared only by the shorter direction of the slab.