FEDRA Masonry design according to Eurocode 6


The program FEDRA is an efficient tool for a complete design of masonry buildings, according to Eurocode 6. The masonry design is based on finite element analysis of each wall. The concrete floors and columns are designed according to Eurocode 2, and the timber roofs according to Eurocode 5. The seismic loads are defined as static horizontal loads, with a reverse triangular distribution. The building is defined with a drawing package included in the program. The building topology, load transferring, finite element modelling and dimensioning are automatically performed.
Masonry design according to Eurocode 6 Concrete design according to Eurocode 2 Foundation design according to Eurocode 7 Seismic design according to Eurocode 8 Roof design according to Eurocode 5	Lite version available for one floor buildings

		With the program's drawing package you can quickly define the building elements (walls, beams, columns, window and door openings) as well as the properties (dimensions, materials) of the building elements. The program's expert system performs an automatic topology recognition of the building structure and produces the structural model, with an automatic load transferring, and finite element mesh generations. Finite element analysis is used to compute the horizontal wall stiffness for distributing the seismic forces, and to compute the stresses in the walls, in order to do the dimensioning according to Eurocode 6. A detailed report is produced, which includes analytical computations and drawings for the floor plans and reinforcement. The computation process is done automatically. All it takes is a click at the [Compute] button.
		Defining the building's structure All the building properties are defined easily through windows. The [Help] on each of these windows directs you to the corresponding help topic.
		Drawing package In the object oriented drawing package the necessary building elements (walls, window and door openings, beams columns) can be easily defined. You can edit the properties of each building element from a property window. With a click of the mouse you can create, place on the drawing, move around and delete the various building elements. With the copy paste actions you can copy building elements from one floor to the other. Export the drawings as DXF files
		Plates The concrete floor solution in vertical loads is done considering the beams as space grillage and by moving the loads as to obtain the worse loading conditions. The design of concrete two-way slabs is based on the Marcus method. The plate topology (slab dimensions, support conditions and loading), and beam position,is automatically recognised from the plan view of the building. A full design report is produced, with drawing plans for the reinforcement (in case of concrete floors).
		Finite element analysis A finite element analysis is performed for each wall in its plane for the computation of the stiffness. A distribution of the seismic forces is performed by using these stiffnesses. After all the loads are computed a finite element analysis for each wall is performed in its plane for the computation of the stresses. These stresses are used for the strength checks according to Eurocode 6. Plane stress quadrilaterals with four nodes are used. The finite element mesh is generated automatically, keeping an element (width/height) ratio less than 2.
		Design methodology The Design of the masonry buildings is based on the assumption that the maximum part of the vertical and horizontal loads are taken from the masonry. The design of concrete floors in vertical loading is performed considering the beams as space grillage. The live loads are placed on the spans to obtain the worse loading conditions. The concrete slabs are solved using the Marcus method. The horizontal seismic forces on each floor are considered as equivalent static loads. The floors are assumed to act as horizontal stiff diaphragms. For the distribution of the seismic forces on the walls, the stiffness of each wall is computed using finite element analysis. The wall stresses are computed by finite element analysis of each wall on its plane. These stresses are used for the strength checks according to Eurocode 6. The design of concrete element is according to Eurocode 2.
		Library of Masonry Units and Mortars A library of Masonry Units and Mortars is included in the program. The masonry units and mortar libraries can be easily adapted to the characteristics of the masonry of the region the program is used, and the requirements of the National application Document of Eurocode 6.
		Library of Masonry Walls Fedra contains a library of standard walls that enables you to define your model by specifying a few parameters only. The masonry wall library can be easily adapted to the characteristics of the masonry of the specific region the program is used, and the requirements of the National application Document of Eurocode 6.
		Properties of masonry walls Masonry walls are defined from the wall units, the mortar and the wall type. A specialised property window assists you to create new masonry walls or edit the properties of the existing ones. The masonry wall library, included in the program, can be easily adapted to the characteristics of the masonry of the specific region the program is used, and the requirements of the National application Document of Eurocode 6.
		Gunites (concrete jackets) You have the option of strengthening the walls of existing masonry buildings using gunites (concrete jackets). A special designed module assists you to define the properties of the concrete jackets (gunites) and the increased wall strength due to the concrete jacket is computed .
		Libraries of material properties Concrete Reinforced steel Mortar Masonry units Masonry walls The material properties, the load combination factors and the design code parameters can be adjusted by the user, to meet the requirements of their region and their native national application document for Eurocodes.
		Timber Roof Design Timber roofs are designed using Eurocode 5. A selection of five commonly used truss types is included in FEDRA. A detailed analysis is performed according to Eurocode 5. All the load combinations of the Eurocode 5 are considered All the checks of the truss elements in combined loading are performed The nailed joints are designed Natural periods of the trusses are computed For a wider variety of roof types please consider our separate program WOODexpress.
		Timber Floor Design

		Preview reports There is a full report preview. In the report which is produced, all the computations and the design process are shown in detail, with references to design code paragraphs. Any error at the solution, inadequate dimensions, or design code requirements, which are not satisfied, are shown in red.
		On line Help A context-sensitive Help system, guides you through the use of the program and the Eurocode provisions. On-line user's manual and frequently asked questions (F.A.Q.) are included in the program. A user's manual is included You can preview, or print the program user's manual. You can select to view it as a Word (doc) or as an Acrobat (pdf) document. Revised: november 01, 2022.


Design methodology and dimensioning