The thing you want to do first is to get the right. Nov 20, 2016 design of flat slab with drop in safe 2016 part duration. The original source is the paper the reinforcement of slabs in accordance with a predetermined field of moments, rh wood, concrete, february 1968, and a followon letter from gst armer, concrete, april 1968. The woodarmer method is a structural analysis method based on finite element analysis used to design the reinforcement for concrete slabs. Plate global moments and wood armer ram staad opentower. Powered by a sophisticated fem solver increasing capacity and substantially speeding up solution for large and complex models, spmats v8. For 1m slab width, moment, shear force, oneway continuous slab for continuous slab, moment and shear force can be obtained from table 3. Inducta software now includes the latest version of australian standards for design of concrete structures. I am undertaking the design of a large piled concrete slab to bs en 1992 analysis in staad and design by hand. The axial force, moments and shears for a particular strip are recovered from the analysis on the basis of the wood armer tech. From the superstress analysis results woodarmer determines the reinforcement moments in the top and bottom of the slab according to wood and.
As a standalone program, it analyzes and designs individual floor levels one at a time. In the recently revised code for bridges irc 1122011, there is a recommendation to adopt threelayer sandwich model for the design of reinforced concrete slab. Powered by the equivalent frame method of analysis and design per latest american aci 31814 and canadian csa a23. Fe quad design compare woodarmer capra maury baumann method. Wood armer moments for reinforcement design of plate elements.
Woodarmer can significantly change the design actions present. Tekla software solutions for advanced building information modeling and structural engineering are part of trimble offering. Concrete design twisting moments wood armer structural. Wood armer moment calculation tool at graitec james b. Nov 14, 2017 area loading drawing meshing load assign uniform shell view shear,bending, axial moment sap2000 duration. Special reinforcement detailing is sometimes necessary to cover twisting moments at the exterior slab corners. Creation and modification of the slab model, execution of the analysis. Slab and wall design for meshed plate elements as per eurocode211. Graitec uk supersuite woodarmer moment calculation tool. Column design software for regular and complex profiles. Design all columns in a building with the click of a button. Wood armer method is preferred in thick plate analysis in.
It is common, that design engineer doesnt know, which method his program uses. Slab design for nonorthogonal reinforcement directions based on the wood armer formula. Sep 03, 2011 woodarmer design moment for top reinforcement in ydirection woodarmer design moment for bottom reinforcement in ydirection woodarmer design moment for top reinforcement in xdirection wood armer design moment for bottom reinforcement in xdirection ultimate negative moment capacity of slab per unit width about an axis parallel to h. Input uniformly distributed loads independent of slab geometry.
Unlike other 2d diaphragmbased slab design programs, adaptfloor pros true. Flat slab analysis and design free version download for pc. Woodarmer is a postprocessor to superstress and is used to aid the design of reinforced concrete slabs and bridge decks idealised as grillages, it forms part of the superload package, or can be supplied separately as a bolt on module to superstress. The locations of the strips are usually governed by the locations of the slab supports. Structural modelling and analysis of concrete floor slabs based on. Safe automates the analysis and design process for the structural engineer, resulting in more sophisticated designs produced with less engineering labor.
Steel frame design menu items will be omitted if a model analysis category of 3d is not in use, and menu items will be greyedout if your software licence key does not currently support them. To calculate the top design moments upper and lower limits are required for each direction, the limits in the x direction are taken as mx1 and mx2, similarly my1 and my2 in the y direction. This article deals with common not only woodarmer methods of concrete slab reinforcement design incorporating twisting moments, design of skew angle reinforcement etc. In general, for reinforced concrete slabs, it is required to design for mx and my only. 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 of reinforced concrete solid slab bridge civil. Integrated reinforced and posttensioned concrete slab design software adaptfloor pro product overview with its ability to model full multistory concrete buildings, floor pro delivers value beyond other singlelevel slab design programs.
Oct 15, 2014 when reinforcement is arranged nonorthogonally or in more than two directions the design moments must be obtained in the principal directions of the reinforcement p and q, this is, we need to obtain from our fe software np, nq, npq and mp, mq, mpq before applying wood and armer rule or any similar rule. I would like to design a mosque with a help of a software, where there are several domes. In case the generated dxf or dwg file doesnt show the zones you may need to save the rtd file and restart robot first. Wood frame design software programs for structural. This method was developed by considering the normal moment yield criterion johansens yield criterion aiming to prevent yielding in all directions. On the expansion side, the soil subgrade modulus is 100 kcf because the contractor could not match the soil properties under the existing foundation slab, which is 200 kcf. Slab reinforcement design for milton keynes theatre. Wood and armer method wood and armer proposed one of the most popular design methods that explicitly incorporate twisting moments in slab design. Wood, the reinforcement of slabs in accordance with a predetermined field of moments.
Oneway simply supported slab analysis and design of the slab similar to design of simply supported beam as indicate in the previous chapter. Slab design for nonorthogonal reinforcement directions based on the woodarmer formula. I am undertaking the design of a large piled concrete slab to bs en 1992. Method of calculating plate and shell reinforcement wood. Design of flat slab with drop in safe 2016 part duration. Nowadays finite element software is used for the design and analysis of reinforced concrete slabs. Wood frame design software for structural engineering companies. Woodarmer has been enhanced from an original program produced by babtie.
Assuming a positive moment is one which produces tension on the top surface. Jan 23, 2017 ram concept flat plate torsional stiffness reduction offline trent byrne mon, jan 23 2017 7. Automatic generation of static wind and seismic loads for flexible floors. We designed it with the end user in mind at every step in the process, and it really shows. Effect of mxy on design of a slab free download as powerpoint presentation. Space gass software to analyses and design floor slab based on. May 08, 2017 for case studies using sap2000 safe nodal method and safe internal method wood armer for thin and thick plates. It outlines the design process for concrete slabs, followed by analysis. Auto tendons for preliminary design perform a quick and accurate preliminary design check considering tendons. Currently it lists menu items for rc slab design, steel frame design, export to steelcomposite frame design, and design combinations. Reinforced concrete solid slab bridge by mak guo shao, bridge engineer. Unjustified reinforcement when using safe models for raft foundations supported on soil can be detected in case of irregular geometry of models, unsymmetrical grids of columns, shear walls near the edge of the raft, etc. On applying the necessary loads and boundary conditions, the wood armer moments could be checked graphically as well as in form of table. Describes ways of accouting for twisiting moment in designinig a slab.
Ram concept flat plate torsional stiffness reduction ram. Strand7 reinforced concrete design capabilities post. Flat slab design tekla structural designer user assistance. Youre not going to find a better program for your business than our wood frame software for structural engineering.
Animations of results particularly useful for animating construction stages, mode shapes, viewing of structural response to moving loads and seismic events, and for investigating the spread of concrete cracking or yielded material can be created and saved as avi files for use in other windows applications. A number of recent projects have made use of the wood armer reinforcement facilities in. Wood armer moments these are moments to be resisted by each layer of reinforcement calculated according to the published equations, which allow designers to make allowance for plate bending and twisting moments when designing the reinforcement within a reinforced concrete panel. At any point in the slab, the normal moments in a direction. Reinforced and posttensioned concrete slab design software. I was just wondering whether i need to calculate the result wood armer moments by hand using the local moments x, y and xy or whether i can rely on the global moments. The available reinforcement results consist of woodarmer moments, calculated steel area. How to save rc panel reinforcement zones to dwg \ dxf file. Robot how to save rc slab reinforcement zones as dxf dwg. Flat slab analysis and design designs beamless concrete slab floors flat slab or waffle slab in accordance with aci 318.
Design of concrete slabs reinforcement methods of fem. The conception of determining equivalent moment is authored by wood and armer. When reinforcement is arranged nonorthogonally or in more than two directions the design moments must be obtained in the principal directions of the reinforcement p and q, this is, we need to obtain from our fe software np, nq, npq and. For an irregular hypothetical slab as shown below, the wood armer moment result in the direction of reinforcement i.
Wood armer is a postprocessor to superstress and is used to aid the design of reinforced concrete slabs and bridge decks idealised as grillages, it forms part of the superload package, or can be supplied separately as a bolt on module to superstress. This method provides simple equations to design a concrete slab based on the output from a finite element analysis software. Setting up a test file in ram concept and quick hand calculations shows that using wood armer can significantly change the design actions present. Auto design midas engineering software structural design. The wood armer method is a way of optimising reinforcement design in a reinforced concrete slab. Effect of mxy on design of a slab spreadsheet microsoft excel. Hi how do i obtain the wood armer moments my and mx from a fe grillage model to design the slab deck.
760 875 776 1494 37 430 397 1147 935 979 1304 1180 331 380 1331 563 835 649 1164 1142 1188 547 1515 1057 641 363 852 364 304 1403 1188 23 708 1592 1450 1033 728 108 1399 1003 572 893 352