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Cantilever Retaining Wall Design Software

Sheet pile design software DeepXcav is the premier sheet pile design sofware in the world, years ahead of other sheet pile software. 12Th Planet Be Blatantly Obvious there. D Title Description Price Rating Dagra Software to digitize data from graphs for Engineering design calculations and analysis. Cantilever Retaining Wall Design Software' title='Cantilever Retaining Wall Design Software' />List of Programs Bridge. Art. net Portal. Suite of programs for structural engineering. Frame analysis package includes basic program RSTAB, RSTAB 2. D, steel structures add ons STEEL, KAPPA, LTB, FE LTB, EL PL, PLATE BUCKLING. Oasys Software Retaining wall design from Oasys is the software of choice for engineers needing to define and solve embedded retaining wall design problems. Incorporated Stability Checks. Frew allows the user to run limit equilibrium analyses on each construction stage within the program. This allows the user to determine the wall toe depth more easily. This feature considers the fixed or free earth mechanism. The analysis considers groundwater levels, groundwater flow, surcharges and multiple prop positions. The output shows the calculated toe level for each stage and the lowest calculated toe level can be used to automatically generate nodes. Alternatively, if the user would like to specify the toe level, this feature could be bypassed. Analysis MethodsSafe flexibility method the soil is represented as an elastic solid with the soil stiffness matrices being developed from pre stored stiffness matrices calculated using the Safe finite element program. This method is ideally limited to a soil with linearly increasing stiffness with depth, but empirical modifications are used for other cases. Mindlin method the soil is represented as an elastic solid with the soil stiffness based on the integrated form of the Mindlin Equations. This method can model a wall of limited length in plan but is ideally limited to a soil with constant stiffness with depth but again empirical modifications are used for other cases. Subgrade reaction method the soil is represented as a series of non interactive springs. This method is considered to be unrealistic in most circumstances. Frew is a program to analyse the soil structure interaction problem of a flexible retaining wall, for example a sheet pile or diaphragm wall. The wall is represented as a line of nodal points and three stiffness matrices relating nodal forces to displacements are developed. One represents the wall in bending and the others represent the soil on each side of the wall. The soil behaviour is modelled using one of three methods The program analyses the behaviour for each stage of the construction sequence. At each stage it calculates the force imbalance at each node imposed by that stage and calculates displacement and soil stresses using the stiffness matrices. If the soil stresses are outside the active or passive limiting pressures correction forces are applied and the problem solved iteratively until the stresses are acceptable. Allowance can be made for arching within the soil body when calculating the active and passive limiting pressures. The following input parameters are included in the analysis The program gives results for earth pressures, shear forces and bending moments in the wall, strut forces and displacements. These are presented in tabular form and can be plotted diagrammatically. In addition the number of iterations, the displacement error between successive interactions and the maximum earth pressure error are output. A video giving an overview of the analysis methodology and advanced analysis options can be viewed here Advanced Analysis Options Undrained to Drained Modelinginitialise stresses with drained materials. Switch to undrained soils. Model sequence. Apply estimated undrained pore pressure profile to undrained materials no movementSwitch to drained parameters no movementSwitch to long term pore pressures. Frew will now calculate the undrained pore pressure based on the Mohr Coulomb or Modified Cam Clay models. The user can do this by assigning a drained material to the undrained material in the Property Table see below and the program uses this as a basis for its pore pressure calculation. This enables the user to bypass the manual sequence outlined below that was required for the modeling of drained to undrained soils and vice versa. Typical Modelling Sequence Advanced Analysis Options Wall relaxation and creep. Frew enables the user to specify the wall relaxation which can be used to model creep. Creep is modeled by applying the relaxation and change in Youngs Modulus. Advanced Analysis Options Modelling Axi Symmetric Problems. Sliding-calculations-1.png' alt='Cantilever Retaining Wall Design Software' title='Cantilever Retaining Wall Design Software' />Frew provides facilities for analysis of a plain strain excavation e. Modeling of Props and Anchors. Struts may be inserted or removed at any node at any stage in the analysis. More than one strut may be defined at a particular node, and not all struts need to act simultaneously. Modeling an applied moment or moment restraint. An applied moment or a moment restraint at a node can be modelled by using a strut with an inclination of 9. Modeling of Props and Anchors. Stressing an anchor may be modeled by specifying a strut with a pre stress force equal to the stressing force and a zero stiffness. The stiffness of zero would maintain a constant force at the point of application throughout the analysis. In subsequent stages after the anchor is locked off it is usually convenient to remove this strut and insert a strut that models both the pre stress and stiffness of the anchor. Inclined anchors are modeled by specifying an inclination to the horizontal and if they are not applied at the vertical axis of the wall a lever arm can be specified to allow for this. Easy Inputs Model Wizard and Graphical Input. The New Model Wizard is accessed by selecting the File NewCtrlN option from the main menu, or by clicking the New button on the Frew toolbar. The New Model Wizard is designed to ensure that some basic settings and global data can be easily entered. Clicking Finish completes the wizard and creates Stage 0 with the input data. The graphical input view will open to allow entry of node levels if these are being created manually. If automatic node generation was selected, the graphical input view will show a single soil zone extending the full depth of the problem. More soil zones can be added as required to set up the initial ground profile for Stage 0. Strut and surcharge data is added separately, and additional stages created. A video showing how the wizard and graphical input can be used to create a file is available here Easy Inputs Automatic Node Generation. Frew now generates the nodes automatically based on inputted levels of stratigraphy, struts etc. This option also allows the user to input the toe level of the wall or use the toe level calculated from the stability check. The whole process, including the setting up of the problem, the stability analysis and the automatic node generation is demonstrated in this tutorial video Easy Inputs Batch Analysis for Multiple Toe Levels. Frew allows the user to specify a number of toe levels. By doing this, they can create a number of files with wall toe depths at different levels. Consequently, the outputs and performance of the walls at different toe depths can be compared. A demonstration showing how to set this up and create the multiple files is available in this video tutorial Partial Factors. Frew allows the user to specify partial factors, which can be applied to material properties or surcharge input parameters. A pre defined list of code compliant partial factors are also available Graphical and Tabular Outputs. The graphical and tabular outputs in Frew have been developed for use by Eningeers in design and as images in reports. The tabular outputs can be printed by stage or exported to excel for further analysis. The graphical output enables the user to zoom and scale. Specific outputs can be chosen e.