SU894111A1

SU894111A1 - Method of forming openwork shells

Info

Publication number: SU894111A1
Application number: SU762366989A
Authority: SU
Inventors: Александр Дмитриевич Ярмоленко
Priority date: 1976-06-02
Filing date: 1976-06-02
Publication date: 1981-12-30

Description

(54) СПОСОБ ОБРАЗОВАНИЯ СЕТЧАТЫХ ОБОЛОЧЕК(54) METHOD FOR FORMATION OF NET SHELLS

ii

Изобретение относитс к строительству, а именно к образованию поверхностей сетчатых оболочек.The invention relates to the construction, in particular to the formation of the surfaces of mesh shells.

Известен способ образовани сетчатых оболочек путем нат жени зат жек решетки , образованной из гибких плетей, расположенных взаимно перпендикул рно и соединенных в узлах пересечений шарнирами с ос ми враш,ений, перпендикул рными плоскости решетки 1.There is a known method of forming mesh shells by pulling the lattices formed of flexible lashes arranged mutually perpendicularly and connected at the intersection nodes by hinges with the vrash, avenia axes perpendicular to the plane of the grille 1.

Недостатком известного способа вл етс ограниченность вариабельности получаемых оболочек, так как таким способом получают оболочку только положительной Гауссовой кривизны, и, кроме того, выполнение стабилизации последовательно в два этапа - монтаж оболочки и собственно стабилизаци - повышает трудоемкость и усложн ет технологию ее возведени .The disadvantage of this method is the limited variability of the resulting shells, since in this way only a shell of positive Gaussian curvature is obtained, and, moreover, stabilization is performed successively in two stages — the installation of the shell and the stabilization itself — increases the complexity and complexity of its erection technology.

Цель изобретени - снижение трудоемкости возведени оболочки.The purpose of the invention is to reduce the complexity of the construction of the shell.

Указанна цель достигаетс тем, что в способе образовани сетчатых оболочек путем нат жени зат жек решетки, образованной из гибких плетей, расположенных взаимно перпендикул рно и соединенных в узлах пересечений шарнирами с ос ми врашеНИИ , перпендикул рными плоскости решетки, решетку предварительно разбивают на расположенные в шахматном пор дке пр моугольные зоны с границами, проход ш,ими вдоль плетей, соедин ют ст жкой узлы пересечений , .расположенные симметрично по обеим сторонам от каждой обшей вершины смежных зон на их диагонал х, и нат гивают ст жки.This goal is achieved by the fact that in the method of forming the retina shells by tightening the grids made of flexible bands, arranged mutually perpendicular and connected at the intersection nodes with hinges with the axes of the head, perpendicular to the plane of the grid, the grid is previously divided into staggered In the order of the rectangular zones with boundaries, the passage ш, along the lashes, they connect the intersection knots, which are located symmetrically on both sides of each common vertex of the adjacent zones on their diagrams. nal x and tensioned bale tie.

На фиг. 1 изображена разбита на зоны решетка оболочки до нат жени ст жек, вид в плане; на фиг. 2 - то же, после нат жени FIG. Figure 1 shows the lattice of the shell up to the tension of the struts, plan view; in fig. 2 - the same after tension

10 ст жек, вид в плане; на фиг. 3 - то же, вид сбоку.10 items, plan view; in fig. 3 - the same, side view.

Сетчата оболочка включает решетку 1, котора образована из расположенных взаимно перпендикул рно гибких плетей 2. В The mesh shell includes a grid 1, which is formed from mutually perpendicularly arranged flexible rods 2. In

5 местах пересечений гибкие плети,соединены шарнирами 3 с ос ми вращений, перпендикул рными плоскости решетки. Кажда гибка плеть представл ет собой металлический профиль или дерев нный брус.5 intersections flexible scourge, connected by hinges 3 with the axis of rotation, perpendicular to the plane of the lattice. Each flexible whip is a metal profile or a wooden bar.

Поверхность сетчатой оболочки образуют The surface of the retina is formed

20 следуюшим образом.20 as follows.

Claims

The grid 1 is placed on a horizontal surface. Thereafter, it is divided into rectangular zones with boundaries 4 extending along the lashes. Then install the straps. For this purpose, a network of rectangular zones 5, arranged in a checkerboard pattern, is selected. Each zone 5 has four vertices 6, common with adjacent zones located in a staggered manner with it. After that, the straps 7 are installed so that they pass over the common vertices of adjacent zones along their diagonals and connect the intersection nodes of the lashes symmetrically located on both sides of the common vertex. Then they form the surface of the shell, the tension of the installed straps. Each strand is, for example, a cable attached by ends to the intersection nodes of the lash strips and provided with a lanyard or pulley tensioner. The tension of strains leads to the transformation of a flat lattice into a spatial shell that combines the surfaces of positive and negative Gaussian curvature. Coatings of this type are easy to transport in rolls to remote areas. The invention allows to significantly simplify the erection of the shell and form the surface of the coating of any shape. The invention of the method of forming the mesh shells by tightening the grids formed of flexible lashes arranged mutually perpendicularly and connected at the intersection nodes by hinges with rotation axes perpendicular to the plane of the lattice, characterized in that the lattice is divided into staggered rectangular zones with boundaries extending along the lashes, they are connected to the intersection nodes, which are located symmetrically on both sides of each common vertices of adjacent zones on their diagonal x, and tighten straps. Sources of information taken into account in the examination 1. Carl Fried Mutfchler und partner, Frei Otto und partner. D-ie Multihalle auf der Bundesgartenschau. “Baumeister, 1975, No. 8, s. 711 (prototype).