SU94952A1 - The device butt joint reinforcing beams - Google Patents

Description

The need for a prefixing device (iiari) Si xeiiiibix of the same-augmented concrete; 1; 1спт; х (beams, sa sf farms and structures) can be a connection with a lot of durable equipment, significant 1), and 11 . Therefore, the section of the design with ilOMOHUi STIICHO and

correspondingly, its capacity of shchek and the airiness of joining the parts into my power system is a task. The recalculation of this task in the okay-network is especially expedient when the device is complex and difficult to assemble, but with respect to the assembly of the joints of both the reinforced concrete elements and the reinforcement of these elements. The creation of a rational-type joint should contribute to the further development of pre-tensioned structures and more quickly their introduction into production in connection with a decrease in the required level of lifting equipment.

The invention relates to a device for the joint of the soydipine reinforcing beams, with ends at the ends, and metal boxes, and consists of the rod (vk, tadyi a) inserted into the anchor glasses with the end sector and s, m projection, and the input 1 m and into engagement with the protrusion mn inside c-akaia iri turning the inserted rod (vc: 1ad1; 1n: a) oiTiociiTe.Tbiio of its axis.

This butt arm ;; TypHOio nuzka nosvol: doesn’t require quick connection of ir bundles with small dimensions of the joint design.

FIG. 1 of the drawing shows a device butt about a connection in a close-cut section; in fig. 2 - cut io / - / on flash. one; FIG. 3-section II - // in FIG. I; pas figs. 4 is a second variant of the device in longitudinal section. The design of the joint consists of two anchor stacks 1 (Figs. 1-3), into which the ends of reinforcement beams are inserted, with the removal of the joint. The cups are lengthened as compared with ordinary ones. Inside the left cup / ring 2 is welded out of the two halves of the sockets 8 with noMoiiu of welding 6. This KOJibuo rests on / inward into the recess of steel rod 3 (; insert). BiiyrpH the right of the cup / there are four protrusions 5, between which there are promsujki, iozpo .; When the rod (liner) 3 is pushed into the anchor and the required length, it is rotated by 45 °, which will lead to the coincidence of the projections 5 with the sector projections 4 of the liner. This completes the closure of the joint.

The control over the correctness of the joint closure is carried out with the help of the tool. The gap between the ends of the anchor bolts is measured, and also with the incorrect installation of the insert, it will not turn: 1. The presence of gaps between the insert and the concrete of the anchors provides the possibility of transferring the insert inside the glasses and its precise installation. .After checking that the rod (liner) is properly installed, the joint is sealed with cement mortar, which is poured through the holes 7. Making the liner 3 and the ring 2 and the protrusions 5 should be dried, accurately and checked by the razor-shaped cups. In the same way, it is necessary to pay special attention to the installation accuracy and their mutual arrangement so that the two abutting elements of the main anchors are located on one straight line and have an i.e. axes of the element.

Tension of anchors of nronsvodnts after hardening of concrete of a structure, nrichs: 1 under anchor glasses are placed the usual forks and; n1b. A joint can be installed and with a symmetrical insert, if its end is done in the same manner as the right end. Such a solution makes it possible to insert the insert on the place of work, but slightly increases its length and the length of the left glass, i.e., it leads to a certain increase in metal consumption.

The second variant of the joint design (Fig. 4) differs from that of the joint, that the oshfangte 3 has its origin. This is a junction: it sounds like a mustache; it is also connected in the junction of the pre-initiation of IAI; same: pykh reinforced concrete; l; elements, ensure the .ch11st of the rotation of the vkchadna (;

Augsiaiai koiit zu; -; cn of the butt joint n) OBei) eiJa calculation and allows you to arrange the arcs of: the aturian beams with 3; ., with a diameter of 5 mm. The force transmitted at the junction, ms-delivery, can reach 60 g w more.

For all the elements 1, 2, 3., 4, and 5 of the design of the proposed rules, steel of grade Art. 3, but it is possible to use steel of higher grades, which will lead to a certain decrease in metal consumption, but the latter is not so important, given the compactness of the design and the simplicity of the closure of the joint. For especially powerful reinforcing beams, higher grades of steel may still be necessary mainly for constructive considerations. A more perfect joint design of the second variant requires the insertion of the liner 3 and onor parts 2 and 4 but the ball-like surfaces, which somewhat complicates the manufacture and cost of the joint increases, but also the T: J and the other are justified, which is obtained by the convenience of the assembly of the console-1-arm; 1I prn my)).

P e;:. m e t i h o b e e e :: l

1. Device butt. - an idiom of reinforcement bars in a pre-straight reinforced concrete structure having, at its ends, anchor metal cups, characterized by the use of a rod (liner) inserted into anchor cups with end-sector protrusions that engage with protrusions inside the cup when turning

an inserted rod (liner) of the rod (insert) and its relative axis. internal heights that arise from them. The form of the implementation of the devices of anchor glasses is

According to claim 1, characterized in that the ball surfaces on it1) are wound. that the end vstuny connecti1n1tel- 3 94952

7 /

Fkg 2

FIG.

FIG. 3