CN210916980U - Assembled cable-girder anchoring structure - Google Patents

Abstract

The utility model discloses an assembled cable beam anchor structure, its structure mainly comprises steel shaft, flange, bolt, pin, connecting plate, cable connection steel bushing etc. that shear. The method is characterized in that: a shear-resistant steel shaft is connected between the two steel girder webs and is bolted with the steel girder webs; the inner side and the outer side of the steel girder web plate are respectively provided with a flange which is connected with the steel girder web plate into a whole through six high-strength bolts; the connecting steel plate is connected with the shear steel shaft through a sleeve at the tail part of the connecting steel plate, and the displacement is limited through five uniformly distributed bolts; the connecting steel plate is welded with the inhaul cable connecting steel sleeve. The utility model has the advantages that compared with the traditional anchoring structure, the assembly type operation is realized, and the working efficiency is improved; the shear-resistant steel shaft between the webs can rotate before being fixed, so that the device can adapt to stay cables at different angles; and the cable beam anchoring structure is easy to replace when damaged. In general, the assembly type cable beam anchoring structure not only meets the use requirement of a bridge, but also can improve the construction progress and is easy to replace.

Description

An assembled cable beam anchoring structure

technical field

The utility model belongs to the field of bridge engineering, in particular to a novel assembled cable-girder anchoring structure applied to cable-stayed bridges.

Background technique

Cable-stayed bridges are more and more favored by engineers due to their simple structure, beautiful shape and strong spanning ability, and are widely used in the construction of long-span bridges. As the span of the cable-stayed bridge increases, in order to reduce the self-weight of the main span of the bridge, or to balance the self-weight difference between the main span and the side span, the main span is often made of steel box girder. When the steel box girder is used as the main girder of the long-span cable-stayed bridge, the anchorage connection between the cable-stayed cable and the steel box girder is one of the key issues in the design. During the Jiji earthquake in 1999, the cable anchorage occurred in the Jilu Bridge. Shock damage such as failure, warping and deformation of steel cable gaskets. Common cable-beam anchorage forms have complex structures, do not have prefabricated operating conditions, have low construction efficiency, and are not easy to replace when damaged. Therefore, it is necessary to invent a new prefabricated cable-beam anchorage structure.

SUMMARY OF THE INVENTION

The utility model provides an assembled cable-beam anchoring structure, which has the following advantages under the premise of having the normal use function of the traditional anchoring structure: all components can be prefabricated in advance, which realizes the assembled operation and greatly improves the work efficiency; The shear-resistant steel shaft between the two cables can be rotated before being fixed, so it can adapt to different inclination angles of different stay cables; due to the assembly type, it is easy to replace when the cable-beam anchoring structure is damaged. In general, the prefabricated cable-girder anchoring structure not only meets the use requirements of the bridge, but also improves the construction progress and is easy to replace.

In order to achieve the above purpose, the utility model provides an assembled cable-beam anchoring structure, which is mainly composed of a shear-resistant steel shaft, a flange, a bolt, a bolt, a connecting steel plate, and a cable connecting steel sleeve.

The prefabricated cable-beam anchoring structure is characterized in that: a shear-resistant steel shaft is connected between the two steel main beam webs, and the shear-resistant steel shaft is in the shape of a bolt rod and is bolted to the main beam web by bolts; A flange is arranged on the inner and outer sides of the web of the main girder, which are connected together by six high-strength bolts to improve the shear resistance of the web of the steel main girder; The distributed five bolts limit the displacement. For the convenience of installation, there is a certain gap between the sleeve connecting the tail of the steel plate and the flange on the inner side of the steel main beam web; the connecting steel plate and the cable connecting the steel sleeve are welded.

The prefabricated cable-beam anchoring structure is characterized in that: the shear-resistant steel shaft is in the shape of a bolt rod, which is connected with other components by the principle of bolts, and 5 limit holes are reserved on it; the flange surface is a full plane; the connecting steel plate The overall shape is a trapezoid, with a steel sleeve at the end, and the steel sleeve reserves 5 limit holes that are consistent with the position and diameter of the shear steel shaft.

In the prefabricated cable-beam anchoring structure, shear-resistant steel shafts, flanges, bolts, bolts, connecting steel plates, and cable-connecting steel sleeves are all made of steel, and the surface is galvanized and then painted.

The prefabricated cable-beam anchoring structure is characterized in that: the shear-resistant steel shaft is made of high-quality carbon structural steel, the flange is made of high-strength stainless steel, the bolts are made of high-strength bolts, and the connecting steel plates and steel sleeves are made of Q400 steel.

The advantages of the present utility model and the beneficial effects produced are:

1. It has great advantages in construction progress. All components can be prefabricated in the factory in advance, and most of the components are connected by bolting. The operation is simple, the welding operation is less, the assembly operation is realized, and the work efficiency is greatly improved;

2. The shear-resistant steel shaft between the webs can be rotated before being fixed, so it can adapt to different inclination angles of different stay cables. It does not take time to design the inclination angle in advance, and the angle adjustment is simple and easy. One set of anchoring structure is suitable for the whole bridge. Can be mass produced;

3. The maintenance cost is low, and the replacement of the prefabricated cable-beam anchoring structure is simple and easy, which effectively reduces the workload and cost of maintenance.

Description of drawings

Figure 1 is a three-dimensional model diagram of an assembled cable beam anchor structure.

Figure 2 is a front view of an assembled cable beam anchor structure.

Figure 3 is a top view of an assembled cable beam anchor structure.

Figure 4 is a three-dimensional model of the shear steel shaft.

Figure 5 is a three-dimensional model of the flange.

Figure 6 is a three-dimensional model diagram of the bolt.

Figure 7 is a three-dimensional model diagram of connecting steel plates.

The names and corresponding numbers of each part shown in the figure: steel main beam web 1, shear steel shaft 2, flange 3, bolt 4, connecting steel plate 5, bolt 6, cable connecting steel sleeve 7.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings.

As shown in the attached drawings, this prefabricated cable-beam anchoring structure is composed of shear steel shaft 2, flange 3, bolt 4, bolt rod 6, connecting steel plate 5, and cable connecting steel sleeve 7. All components can be made in advance in the factory. prefab. During the construction process, first install flange 3 on the inner and outer sides of the steel main beam web 1, the central aperture of flange 3 is consistent with the reserved aperture of steel main beam web 1, and is connected as a whole by 6 high-strength bolts 4, and then welded in advance. The completed connecting steel plate 5 and the cable connecting steel sleeve 7 are lifted to the working area, and the steel sleeve at the tail of the connecting steel plate 5 is aligned with the center of the flange 3. For the convenience of installation, connect the tail sleeve of the steel plate 5 and the inner side of the main beam web 1 Leave a certain gap between the blue and 3, and finally insert the shear steel shaft 2 from the outside of the web on one side of the steel main beam, pass through the tail sleeve of the connecting steel plate 5, and then pass through the web on the other side of the steel main beam, adjust the shear steel Align the shaft 2 and the connecting steel plate 5 with the reserved limit hole, insert the bolt 6 into the limit hole to connect and fix, adjust the angle of the shear steel shaft 2 according to the cable angle of the cable-stayed bridge, and then tighten the shear steel shaft 2 The end nut completes the assembly.

In the drawings, the shear steel shaft 2 is made of high-quality carbon structural steel, the flange 3 is made of high-strength stainless steel, the bolt 4 is made of high-strength bolt, and the connecting steel plate 5 and the steel sleeve are made of Q400 steel.

The above is only to illustrate the principle of the present utility model by the method of illustration, not to limit it to the specific structure and scope of application, so all the corresponding modifications and equivalents that may be used belong to the application of the present utility model. patent scope.

Claims (2)

1. An assembled cable-beam anchoring structure, consisting of a shear-resistant steel shaft (2), a flange (3), a bolt (4), a bolt (6), a connecting steel plate (5), and a cable connecting steel sleeve (7) ), which is characterized in that a shear-resistant steel shaft (2) is connected between the two steel main beam webs (1), and the shear-resistant steel shaft is in the shape of a bolt rod, which is bolted to the steel main beam web through bolts (4). A flange (3) is arranged on the inner and outer sides of the steel main beam web (1), and is connected into one body by six high-strength bolts (4); the connecting steel plate (5) is connected to the shear steel shaft ( 2) Connection, the displacement is limited by the evenly distributed five bolts (6), and there is a certain gap between the sleeve at the end of the connecting steel plate (5) and the flange (3) on the inner side of the main beam web (1); the connecting steel plate ( 5) Weld between the steel sleeve (7) connecting the cable. 2. The prefabricated cable-beam anchoring structure according to claim 1, characterized in that: the shear steel shaft (2) is made of high-quality carbon structural steel, the flange (3) is made of high-strength stainless steel, and the connecting steel plate (5) and the steel The sleeve is made of Q400 steel.

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