SU70153A1 - Lattice arched design - Google Patents

Description

Famous archway coistructures iiMeioiiuie paraljie .TbHfjie along sa and cross braces are known.

A distinctive feature of the design being described is that both on each of its arches are made of rods that can perceive only tensile stresses.

To accomplish this feature, the ends of the rods should be freely drawn into the lugs mounted in the arch nodes and fixed in them with nuts.

Each new rod can be made up of two parts connected by longitudinal bolts between each other, missing from the eyelet holes fixed in the abutting ends of the rod parts.

Parallel arches are interconnected by girders, in which diagonals abut on which lugs are mounted to fasten the rods.

The arches are made of prefabricated elements in the form of crosses, the ends of which are adjacent to the purlins.

The radial rods are mounted so that they can only work on stretching.

The drawings show diagrams of a famous truss consisting of one csa and a lattice; FIG. 1-scheme of the lattice arched structure described; FIG. 2 - the node of this lattice structure of 1, made of reinforced concrete; . 3 - cross-section of the eye; FIG. 4 is a diagram of the middle joint and the arched structure, of concrete made of reinforced concrete; FIG. 5 is a variant of a structural assembly made of metal; FIG. 6 and 7 are sections along A-A and BB, respectively; FIG. 8-second variant | t of the lattice apo4HO i assembly made of metal; FIG. 9 - a constructive first release, a gap of a joint on a clear rod in the middle of the panel, front view; FIG. 10 - the same, cross-section along BB.

In the static relation 1 and the described arched structure (Fig. 4) is two trusses of the known single-poke con. NO 701532

Structures iitjHca KOTOiUxix form along the arched truss under consideration, and the bracing and stanchions form a filling.

Depending on the load, sa will only work on stretching (Fig. 1).

The lattice arched structure can be expanded in the concrete and metal. Construction units with reinforcement of reinforced concrete elements are shown in FIG. 2--4.

A radial rod / of round steel is inserted into the tube 2 and therefore does not have a circuit with concrete at the nodal points and can work only for stretching. On both sides of this rod, two rings 3 of such a perimeter are placed so that the forces arising in them are completely perceived by the forces of the stage with concrete. The two rings are equipped with eyes 4, to which the ends of the pins 5, 1X are made of round steel and are cut at the ends with nuts. With such an attachment, but sa will work only for stretching.

The diagonal bracing 6 of precast concrete, made in the shape of a cross, trims close to the nodes during the middle third of its cross section, and the upper and lower third (trimmed in Fig. 2) connected with the outlets of reinforcement 7 from the node, are concreted in place.

The connection between parallel arched structures is carried out by means of runs located perpendicular to the plane of the arched structures and adjacent to them in the nodes. These irogons at the same time are also supports for the lattice in the nodes: they are adjacent to the braces 6, they also have lugs 4 for 5 and 5 for radial rods. The purlin is reinforced with radial reinforcement 9 and clamps 8.

FIG. 4 shows a diagram of the middle joint of an arched structure made of reinforced concrete. Both halves of the arched truss of the Sonrikas are tangential to each other. The connection between the two halves is carried out by means of rods - diagonal and radima, passed from one half to the other.

FIG. 5 - 7 shows the design of the node, completed from IU, a la. The braces of the composite rod 10 are made of two vertical sheets // located in the plane of the nodal fasos, and two loading corners 12. The tonal diagonal braces 10 are welded in the shape of a cross and are fastened in knots to the knobs of the embedment 13 on the jaws with inserts N.

The radial rod / passes between the gussets 15 and is attached to them by means of treads 16n horizon. This diaphragm is made of sheet steel. A clear rod and 1 of round steel iodine are guided to the vertical diaphragms 19 and the screen, 1 are attached with them with the help of nuts. Thus, the new 1H and radial / rods can work only on the same P1e.

FIG. 8 shows the second narnag of the metal assembly; here, the new rods 20 are made of sheet steel and are located in the plane of the gussets 24. to which they are attached with double lining 21 on the seals. In order to desaturate the work on the rod, only for stretching, in the middle of the panel, the lateral sheets are cut and the joint ix is not covered by longitudinal bolts 22, passed through holes 23 of the tweezers 23 (Fig. 9 and 0).

The described construction can be used in various engineering structures (bridges, racks, hydraulic structures, etc.) with a large lifting load.

Claims (6)

1. Lattice arched structure with cross-braces in each panel and parallel by themselves, characterized in that both of each arch are made of rods that can perceive only tensile forces. 2. The form of construction according to claim 1, characterized in that the ends of the core rods are freely passed into the holes of the lugs mounted in the nodes, and secured with nuts from the side of each node. 3. The form of construction according to claim 1, characterized in that the hinged rods are each (each) of two separate parts interconnected by longitudinal bolts through the openings of the gap, fixed at the abutting ends of the rod parts. 4. The form of the design according to paragraphs. 1 and 2, characterized in that the parallel arches are interconnected by purlins into which the braces abut and on which the holes are mounted to fasten the lateral rods. 5. The form of the design according to paragraphs. 1 and 4, characterized in that the arches of the arches are made of prefabricated elements in the form of crosses, the ends of which are adjacent to the purlins. 6. The form of the design according to paragraphs. 1-5, characterized by the use of radial rods mounted so that they can work only on stretching. FIG 4 13 10 2 21st