SU727792A1

SU727792A1 - Arch truss

Info

Publication number: SU727792A1
Application number: SU782666892A
Authority: SU
Inventors: Иван Леонидович Кузнецов; Рафаэль Казиханович Сафин
Original assignee: Казанский инженерно-строительный институт
Priority date: 1978-09-07
Filing date: 1978-09-07
Publication date: 1980-04-15

Description

(54) АРОЧНАЯ ФЕРМА(54) AROMA FARM

Изобретение относитс к строительным конструкци м и может быть использовано при возведении облегченньпс покрытий .The invention relates to building structures and can be used in the construction of lightweight coatings.

Известна арочна ферма, включающа по са и решетку, образованную из стоек и раскосов l.The arched truss is known, comprising a ca and a grating formed of the uprights and braces l.

Однако выполнение решетки из стоек и раскосов требует повышенного расхода материала., ,However, the implementation of the lattice racks and braces requires an increased consumption of material.,

Известна и друга арочна ферма| включающа по са и решетку, образованную двум непрерьшными по длине волнообразно изогнутыми элементами, расположенными чередующимис грюбн ми по обе стороны фермь 2j,Known and friend arched farm | including a ca and a lattice formed by two wavelength-curved elements that are continuous along the length, alternating grooves on both sides of a farm 2j,

У этой фермы мала несуща способность и сложна конструкци элементов рещетки.This truss has low carrying capacity and complex structure of the lattice elements.

Цель изобретени - повыщение несущей способности и упрощение конструкции .The purpose of the invention is to increase the carrying capacity and simplify the design.

Поставленна цель достигаетс тёМ) что предлагаема арочна ферма, включающа по са и решетку, образованную двум непрерьюными по длине волнообразно изогнутыми элементами, расположенными чередующимис гребн ми по обе стороны фермы снабжена стойками, расположенными в плоскост х, проход щих через противосто щие гребн волн изогнутых элементов.The goal is achieved by the weeds) that the proposed arched truss includes a ca and a lattice formed by two continuous length wavy bent elements arranged alternating ridges on both sides of the truss equipped with racks located in planes passing through the opposing ridge waves of bent elements .

Сечение по сов и стоек имеет коробчатую форму.The cross section of the owls and racks is box-shaped.

На фиг, 1 изображена описьгоаем§; арочна ферма, общий вид| на фиг. 2 - фрагмент арочной фермы, волнообразно изогнутые элементы расположены в параллельных плоскост х: на фиг. 3 - то же, волнообразно. изогнутые элементы расположены перекрестно.Fig, 1 is depicted as follows; arched farm, general view | in fig. 2 is a fragment of an arched truss, wave-like curved elements are arranged in parallel planes; in FIG. 3 - the same, undulating. curved elements are arranged crosswise.

Claims

The arch truss includes the upper i and the lower 2 traces, interconnected by a lattice formed by two wavelength-continuous, uninterrupted elements 3, located on both sides along the lines. The arched truss is equipped with uprights 4 located in the crests of the bones passing through the opposing crests of the waves of the bent elements 3. The manufacture of the arched truss is carried out as follows. Between the upper 1 and lower 2, Zaplat pot stands 4 and wavy elements 3, which can be located both in parallel planes and in cross planes, fix themselves. The invention makes it possible to save metal for the fabrication of the grid within the range of 200-25%. Claim 1. Arched truss, consisting of sax and grids formed by two continuous wavelength bent elements located on both sides of the rim, is distinguished by the fact that, in order to increase the bearing capacity and simplify the design, it is equipped with uprights located in planes passing through the opposing crests of waves of curved elements. 2. A farm according to Claim 1, st. T and ch ayu so that the cross section of the columns and columns has a box-like shape. Sources of information taken into account in the experiment 1. Melnikov N. P. Metallic structures. M., stroiizdat ,, 1973, p. 69

2. US patent number 3400509, cl. 52-694, 1968 (prototype).