CALCULATION OF THE MULTILANE COMPOUNDS WASHER PASTED INTO THE SOFTWARE SYSTEM SCAD

Ariskin М.V., Zagarina М.С.

Penza State University of Architecture and Construction

Present paper is logical continuation of the previously published work [1], [2], [3], [4].

The calculation is performed using design-computing complex SCAD. Implements complex, finite element modeling of static and dynamic design diagrams, checking stability, choice unfavorable combinations of forces, selection of fixtures concrete structures, check the bearing capacity of steel structures. The following explanatory note describes only actually used in the calculations of the title object capabilities of the complex SCAD.

Pic. 1 The settlement scheme of connection on HS

Connection monolithic model mathematically described as binding sites for all relevant degrees of freedom.

Design scheme is defined as a system with a sign 5. This means that we consider a system of general form, which strain and its main unknowns represented by linear movement of the nodal points along the axes X, Y, Z and rotations around these axes.

Possible move nodes finite element computational schemes are limited by external constraints that prohibit some of these movements.

Connecting point to the nodes of finite element (end section members) have the same displacement from the specified nodes.

Shell finite elements, geometrical shape that a small area of the element is flat (which form a polyhedron inscribed in the actual curved shape of the middle surface of the shell). For these elements, in accordance with the ideology of the finite element method, the true form of movement inside the approximately represented simplified dependencies. Description of the stress state associated with a local coordinate system whose axes X1 and Y1 are arranged in a plane and an axis of the element X1 is directed from the first node to the second, and the Z1 axis is orthogonal to the surface of the element.

At present the design scheme of plate elements for which the output voltage along axes other than the axis of the local coordinate system elemental. Vyravnivanie axes are shown [4].

Calculation results are selectively. All information obtained by calculating the information is stored electronically.

Voltage decreases with increasing pitch placement goals, as can be seen that the voltage at the lower plate is significantly greater than under the middle and upper indicating uneven distribution of efforts between the washers. It should be noted that the calculation in the program complex SCAD produced in flat performances and for orthotropic body, thus necessary to calculate the approximate to the real structure. Unfortunately in the software package SCAD this is not possible, ie you need to use software package that allows you to produce ANSYS to perform volumetric solution of the problem, and wood material given in the form of an anisotropic body.

References:

1. Modern trends in building design [Text] / MV Ariskin [etc.] / / Young scientist. - 2012. - № 10. - P. 31-33.

2. Economic efficiency in designing complex Allplan compared with existing CAD-systems [Text] / MV Ariskin [etc.] / / Young scientist. - 2013. - № 5. - P. 32-35.

3. Application multilayered compounds in wooden structures in building practice [Text] / MV Ariskin [etc.] / / Young scientist. - 2013. - № 5. - P. 35-38.

4. Protection from shock and vibration accompanying: exponential approximation of trigonometric functions [Text] / Danilov AM [etc.] / / Regional architecture and engineering. 2012. № 3. Pp. 85-88.