CN203393615U

CN203393615U - Plug pin type steel strand stopping device

Info

Publication number: CN203393615U
Application number: CN201320306464.6U
Authority: CN
Inventors: 刘杳华; 黄金生; 魏玉吉; 张明; 周佑斌
Original assignee: CCCC SHEC Fourth Engineering Co Ltd Anhui Branch
Current assignee: CCCC SHEC Fourth Engineering Co Ltd Anhui Branch
Priority date: 2013-05-31
Filing date: 2013-05-31
Publication date: 2014-01-15
Anticipated expiration: 2023-05-31

Abstract

The utility model discloses a plug pin type steel strand stopping device and belongs to the field of constructional engineering. The plug pin type steel strand stopping device comprises a base and further comprises an upper beam and a lower beam. The lower beam is perpendicularly arranged on the base. A first rectangular groove with an opening facing downwards is formed in the upper portion of the lower beam. A second rectangular groove with an opening facing upwards is formed in the lower portion of the upper beam. A first plug pin is fixed at one end of the upper beam and a second plug pin is fixed at the other end of the upper beam. A first pin hole is formed in one end of the lower beam and a second pin hole is formed in the other end of the lower beam. The shape of the first plug pin is matched with the shape of the first pin hole, while the shape of the second plug pin is matched with the shape of the second pin hole. The plug pin type steel strand stopping device of the utility model is convenient to operate, small in occupied area and capable of effectively preventing broken steel strands from flying and hurting people and guaranteeing safety of construction workers.

Description

A kind of bolt-type steel strand arrester

Technical field

The utility model belongs to building engineering field, more particularly, relates to a kind of bolt-type steel strand arrester.

Background technology

Prestressed concrete is through the development of over half a century progressively ripe along with partial prestressing concept, and having broken through concrete can not tension and the constraint of cracking, has greatly expanded its range of application.At present, prestressed concrete has become the topmost a kind of structural meterials of domestic and abroad bridge engineering, for the larger bridge of span, the prestressing steel using mostly is steel strand, but the disadvantages such as weight is large, easy-to-rust that these class steel still have, the stretching process that adds steel strand is to carry out the external of stretch-draw crossbeam, needs to accept the pulling force from hundred tons of the one-tenth of jack, very easily stress is concentrated and the accident such as burst apart, fracture, to around construction workman produce great life danger.For example: China Patent No. is 201110145481.1, open day is on December 28th, 2011, disclose the patent document that a name is called prestressing force anti-fatigue girder, this utility model belongs to technical field of civil engineering, is specifically related to a kind of prestressing force anti-fatigue girder.By top flange, bottom flange, web, the bearing stiffener prestressing force anchor slab of holding concurrently, anchor hole, high-strength prestress steel strand, anchoring stiffening plate, anchor head, arc, bearing steel corbel and anti-sidesway cushion block form, in the anchor hole about web symmetry, to penetrate prestress wire near the tension edge of a wing, after stretch-draw, use anchor head anchoring, thereby the tensile region of girder steel is produced to precompression, make it consider after Relaxation of prestressing that compressive stress is greater than the lower tensile stress of deadweight and add tired tensile stress amplitude, Ze Liang bottom flange can not enter tension under deadweight and fatigue loading compound action yet, thereby solved fatigue problem.This utility model makes design Fatigue Stress Amplitude in bottom flange be confined to allow Fatigue Stress Amplitude to bring up to approach design strength f from former, anti-fatigue ability significantly improves, the brittle fracture of the labor that weakens is the strength problem of ductility, the ultimate strength of bottom flange almost doubles, and has significantly improved the stock utilization of high strength steel.

China Patent No. is 02235214.7, open day is on December 25th, 2002, the patent document that a name is called prestressed large-span solid abdomen steel beam structure system is disclosed, this utility model discloses a kind of prestressed large-span solid abdomen steel beam structure system, the single span girder steel or the multispan continuous steel beam that comprise I-shaped or box section, and in the both sides of its steel beam web plate, be provided with two groups of symmetrical presstressed reinforcing steels along its length, these presstressed reinforcing steel both ends are anchored on the ground tackle being fixed on girder steel.Every group of presstressed reinforcing steel be a branch of more than, elongated or only at girder steel, bear tensile stress compare great position and arrange along girder steel, it can be parallel with steel beam web plate or be an angle with steel beam web plate.Presstressed reinforcing steel is bent and pass the preformed hole on frange plate, on the girder steel frange plate that it is corresponding with presstressed reinforcing steel bending place and web, increases and is welded with the gusset of putting more energy into.Steel structure girder installation in position and fixing after, by two groups of presstressed reinforcing steels being carried out to stretch-draw, girder steel applied to prestressing force form prestressed large-span solid abdomen steel beam structure system, can be used for steel building that beam span is larger or bridge etc.

Above-mentioned girder steel is applied very extensive in the manufacture process of the larger bridge of span, and it is in work progress, and steel strand are in the external tension of girder steel, and need workman to operate to adjust the connecting portion of steel strand.If the stress moment applying the excessive tensile strength that causes surpassing steel strand, the accident that easily breaks, does not arrange safeguard measure, great threat workman's life security, and also there is no the device of this respect in prior art.

Summary of the invention

the problem that 1, will solve

For the above-mentioned problems in the prior art, the utility model provides a kind of bolt-type steel strand arrester, its top rail vertically inserts in lower transverse beam by latch, and use screw fastening, easy to operate, floor space is little, can effectively prevent from that post-rift steel strand from flying up to hurt sb.'s feelings, and guarantees constructor's safety.

2, technical scheme

In order to address the above problem, the technical scheme that the utility model adopts is as follows.

A steel strand arrester, comprises base, also comprises top rail, lower transverse beam, and described lower transverse beam is vertical on base; The top of described lower transverse beam has the first rectangular recess that Open Side Down; The bottom of described top rail has the second rectangular recess of opening upwards; One end of described top rail is fixed with the first latch, and the other end is fixed with the second latch; One end of described lower transverse beam is provided with the first pin-and-hole, and the other end is provided with the second pin-and-hole; The shape of the shape of described the first latch and the first pin-and-hole matches; The shape of the shape of described the second latch and the second pin-and-hole matches.

Further, described the first latch, the second latch, the first pin-and-hole, the second pin-and-hole are equipped with measure-alike screw fastening hole.

Further, the thickness of described the first latch, the second latch is 0.5cm.

Further, the groove depth of described the first rectangular recess, the second rectangular recess is 2cm.

3, beneficial effect

The technical scheme that adopts the utility model to provide, compares with existing technology, has following beneficial effect:

(1) the utility model bolt-type steel strand arrester, comprise top rail, lower transverse beam, base, lower transverse beam is vertical on base, top rail vertically inserts in lower transverse beam by latch, and use screw fastening, easy to operate, floor space is little, can effectively prevent that post-rift steel strand from flying up hurts sb.'s feelings, and guarantees constructor's safety;

(2) the first latch of the utility model bolt-type steel strand arrester, the second latch, the first pin-and-hole, the second pin-and-hole are equipped with measure-alike screw fastening hole, guarantee that lower and upper cross-member connects fastening;

(3) groove depth of the rectangle straight trough on the lower and upper cross-member of the utility model bolt-type steel strand arrester is 2cm, contributes to steel wire bundle smoothly through straight trough, has improved the limit effect of arrester.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

In figure: 1, top rail; 2, lower transverse beam; 3, base; 4, the first latch; 5, the second latch; 6, the first pin-and-hole; 7, the second pin-and-hole.

The specific embodiment

For the ease of it will be appreciated by those skilled in the art that below in conjunction with accompanying drawing, utility model is further described.

As shown in Figure 1, a kind of bolt-type steel strand arrester, comprises base 3, also comprises top rail 1, lower transverse beam 2, and lower transverse beam 2 is vertical on base 3; The top of lower transverse beam 2 has the first rectangular recess that Open Side Down; The bottom of top rail 1 has the second rectangular recess of opening upwards; One end of top rail 1 is fixed with the first latch 4, and the other end is fixed with the second latch 5; One end of lower transverse beam 2 is provided with the first pin-and-hole 6, and the other end is provided with the second pin-and-hole 7; The shape of the shape of the first latch 4 and the first pin-and-hole 6 matches; The shape of the shape of the second latch 5 and the second pin-and-hole 7 matches.

The first latch 4, the second latch 5, the first pin-and-hole 6, the second pin-and-hole 7 are equipped with measure-alike screw fastening hole; The thickness of the first latch 4, the second latch 5 is 0.5cm; The groove depth of the first rectangular recess, the second rectangular recess is 2cm.

Steel strand are being carried out before stretch-draw, junction at steel strand and finish rolling screw thread, by lower transverse beam 2 be laterally vertically positioned over steel wire bundle below, make steel strand between lower and upper cross-member, again the latch at the two ends of top rail 1 is inserted in corresponding pin-and-hole, and with screw fastening, now the rectangular recess of lower and upper cross-member is to being connected into a sealing rectangle frame, 1 pair of steel strand that break of top rail play the effect of blocking.

Above content is only to the utility model structure example and explanation; affiliated those skilled in the art make various modifications to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the design of utility model or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.

Claims

1. a bolt-type steel strand arrester, comprises base (3), it is characterized in that: also comprise top rail (1), lower transverse beam (2), described lower transverse beam (2) is vertical on base (3); The top of described lower transverse beam (2) has the first rectangular recess that Open Side Down; The bottom of described top rail (1) has the second rectangular recess of opening upwards; One end of described top rail (1) is fixed with the first latch (4), and the other end is fixed with the second latch (5); One end of described lower transverse beam (2) is provided with the first pin-and-hole (6), and the other end is provided with the second pin-and-hole (7); The shape of the shape of described the first latch (4) and the first pin-and-hole (6) matches; The shape of the shape of described the second latch (5) and the second pin-and-hole (7) matches.

2. bolt-type steel strand arrester according to claim 1, is characterized in that: described the first latch (4), the second latch (5), the first pin-and-hole (6), the second pin-and-hole (7) are equipped with measure-alike screw fastening hole.

3. bolt-type steel strand arrester according to claim 2, is characterized in that: the thickness of described the first latch (4), the second latch (5) is 0.5cm.

4. bolt-type steel strand arrester according to claim 1, is characterized in that: the groove depth of described the first rectangular recess, the second rectangular recess is 2cm.