Geometric and Static Analysis of the Historical Trusses in Roman Catholic Church of the Holy Kozma and Damian in the Abramová Village

Abstract

This paper treats the stability of two superposed gravitating streams rotating about the axis transverse to the horizontal magnetic field. The critical wave number for instability is found to be affected by rotation for propagation perpendicular to the axis about which the system rotates. The critical wave number for instability is not affected by rotation when waves propagate along the axis of rotation. The critical wave number is affected by both the magnetic field and the streaming velocity in both cases. Both the magnetic field and the rotation are stabilizing, while the streaming velocity is destabilizing.

Analysis of proportional conception of the historical truss Church of St. Martin in Dolní Újezd

“…Information on proportional and geometric conception may be a guideline for a recovery methodology in relation to the conservation of historic buildings. [8,9] The similar analysis of the truss and its proportional relations in the All Saints Church in Vlčovice in Silesia revealed the similar method "n plus 2" was used to determine the truss height (Figure 7), in the rural house in Vápenná [4,5] as well as in the Trinity Church in Klimkovice (also situated in Silesia) is the use of the similar principle to determine a truss height -the principle of "n plus one". The main difference is in the number of x units within a side of the basic square defining the truss structure.…”

“…This principle has also been identified in other historical roof trusses of Slovakia and Czechia, which we were analysing (eg. roof trusses on a churches in the village of Bela Dulice, Abramova, Okolicne, Klimkovice, Vlčovice and others [3,4,6]). …”

Proportional and Structural Analysis of the Historical Truss of Church of St. Bartholomew in Mladočov

“…As in other investigations of trusses, in this case, the principle of the principle "n plus k" was to determine the height of the church depending on its width. For example at the trusses of churches in Dolný Újezd [1], St. Catherine in Banská Štiavnica [14], Klimkovice [15], St. Nicolaus in Podunajské Biskupice [16], St. Cozma and Damianus in Abramova [17] and others [18]. Fig.…”

Proportions and static Analysis of a Historical Truss in a Rural House in Vápenná Village

“…After previous examinations of historical trusses of primarily sacral buildings it was found that one of the most commonly used principles for determining the essentials truss dimensions is a principle we dubbed "n plus one" [4]. It is a principle determining the height of a truss based on its width as follows: the width is divided into 2n units and the height is then (n + 1) units.…”