阅读说明：本技术 一种磁悬浮轨道梁后浇段钢筋套筒连接结构及连接工艺 (Magnetic suspension track beam post-cast section steel bar sleeve connection structure and connection process ) 是由 杨根明 罗利 胡云洁 陈艳 于 2021-02-20 设计创作，主要内容包括：本发明公开了一种磁悬浮轨道梁后浇段钢筋套筒连接结构及连接工艺,设置在两个轨道梁之间,包括若干个设置在轨道梁底部内侧面上的套筒和设置在套筒内的钢筋,钢筋的长度小于轨道梁与轨道梁的间距且大于轨道梁与轨道梁间距的二分之一,轨道梁与轨道梁的底部之间浇筑有混凝土层。本发明的有益效果是：本方案预制的轨道梁上不需要在连接处预埋钢筋,能够提高轨道梁预制的效率,缩短轨道梁的生产周期,并且使轨道梁便于运输,而有利于降低运输成本,后期不需要再进行钢筋定位、调直等工作,不会对轨道梁的表面造成破坏。(The invention discloses a post-cast section steel bar sleeve connecting structure and a post-cast section steel bar sleeve connecting process of a magnetic suspension track beam, wherein the steel bar sleeve connecting structure is arranged between two track beams and comprises a plurality of sleeves arranged on the inner side surfaces of the bottoms of the track beams and steel bars arranged in the sleeves, the length of the steel bars is smaller than the distance between the track beams and is larger than one half of the distance between the track beams, and a concrete layer is poured between the track beams and the bottoms of the track beams. The invention has the beneficial effects that: the prefabricated efficiency of track roof beam can be improved to the pre-buried reinforcing bar of junction that need not be on this scheme prefabricated track roof beam to make the track roof beam be convenient for transport, and be favorable to reducing the cost of transportation, work such as reinforcing bar location, alignment need not carry on again in the later stage, can not lead to the fact destruction to the surface of track roof beam.)

1. The utility model provides a magnetic suspension track roof beam post-cast section reinforcing bar muffjoint structure, sets up between two track roof beams (1), its characterized in that: the steel bar fixing device comprises a plurality of sleeves (4) arranged on the inner side face of the bottom of a track beam (1) and steel bars (3) arranged in the sleeves (4), wherein the length of each steel bar (3) is smaller than the distance between the track beam (1) and is larger than one half of the distance between the track beam (1) and the track beam (1), and a concrete layer (2) is poured between the track beam (1) and the bottom of the track beam (1).

2. The magnetic suspension track beam post-cast section steel bar sleeve connecting structure according to claim 1, characterized in that: the sleeves (4) on the two track beams (1) are arranged in a staggered mode at equal intervals along the length direction of the track beams (1).

3. The post-cast section steel bar sleeve connecting structure of the magnetic suspension track beam according to claim 1 or 2, characterized in that: two layers of sleeves (4) are arranged on the track beam (1) along the height direction of the track beam (1).

4. The post-cast section steel bar sleeve connecting structure of the magnetic suspension track beam according to claim 3, characterized in that: the sleeves (4) arranged on the two track beams (1) along the height direction are arranged in a staggered mode.

5. The post-cast section steel bar sleeve connecting structure of the magnetic suspension track beam according to any one of claims 1, 2 and 4, wherein: the steel bar (3) is provided with threads, and the sleeve (4) is internally provided with internal threads matched with the steel bar (3) for use.

6. The magnetic suspension track beam post-cast section steel bar sleeve connecting structure according to claim 5, characterized in that: the adjacent reinforcing steel bars (3) are mutually bound.

7. The magnetic suspension track beam post-cast section steel bar sleeve connecting structure according to claim 1, characterized in that: and a cable hole (5) parallel to the length direction of the track beam (1) is formed in the concrete layer (2).

8. The utility model provides a magnetic suspension track roof beam post-cast section reinforcing bar muffjoint technology which characterized in that: the method comprises the following steps:

step S1: prefabricating the track beam (1) according to any one of claims 1 to 7, wherein a prepared hole is arranged on the inner surface of the lower connection part of the track beam (1), and a sleeve (4) is arranged in the prepared hole;

step S2: transporting the prefabricated track beam (1) to a construction site, positioning and installing the track beam (1) in place, and installing the steel bars in the sleeves (4);

step S3: concrete is poured between the joint of the track beam (1) and the track beam (1), and the reinforcing steel bars (3) and the poured concrete form a concrete layer (2).

9. The process of connecting the post-cast section steel bar sleeve of the magnetic suspension track beam according to claim 8, wherein the process comprises the following steps: the sleeves (4) in the step S1 are evenly distributed along the length direction of the track beam (1) at equal intervals, and the sleeves (4) on the two corresponding track beams (1) are arranged in a staggered mode.

10. The process of connecting the post-cast section steel bar sleeve of the magnetic suspension track beam according to claim 8, wherein the process comprises the following steps: threads are arranged in the sleeve (4), and external threads which are matched with the sleeve (4) are arranged on the steel bar (3); the reinforcing steel bars (3) on the two track beams (1) are mutually bound.

Technical Field

The invention relates to the field of magnetic suspension track construction, in particular to a steel bar sleeve connecting structure and a steel bar sleeve connecting process for a post-cast section of a magnetic suspension track beam.

Background

At present, most post-cast section beam and slab concrete in China are reinforced by pre-embedded steel bars and concrete pouring at joints, redundant concrete at the joints is chiseled out during connection to expose partial steel bars, the exposed steel bars are straightened and staggered one by one, and are bound or welded by steel bars with the same specification, and concrete is poured for curing. This connection has several disadvantages: 1. the burrs at the joints have poor apparent mass of concrete before the concrete is poured. 2. The precast slab post-cast section is inconvenient to transport due to the fact that the steel bars are embedded and extend outwards. 3. Because the pre-buried overhanging reinforcing bar of post-cast section is exposed outside, be polluted easily before concreting.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a steel bar sleeve connecting structure and a steel bar sleeve connecting process for a post-cast section of a magnetic suspension track beam, which are used for improving the construction efficiency of the post-cast section of the track beam, reducing the transportation difficulty and the transportation cost and shortening the construction period.

The invention is realized by the following technical scheme: the utility model provides a magnetic suspension track roof beam post-cast section reinforcing bar muffjoint structure, sets up between two track roof beams, includes that a plurality of setting is sleeve and the reinforcing bar of setting in the sleeve on track roof beam bottom medial surface, and the length of reinforcing bar is less than track roof beam and track roof beam's interval and is greater than the half of track roof beam and track roof beam interval, has pour the concrete layer between the bottom of track roof beam and track roof beam.

Further, in order to better implement the invention, the sleeves on the two track beams are staggered at equal intervals along the length direction of the track beams.

Further, in order to better realize the invention, two layers of sleeves are arranged on the track beam along the height direction of the track beam.

Further, in order to better implement the invention, the sleeves arranged along the height direction on the two track beams are arranged in a staggered mode.

Furthermore, in order to better realize the invention, the steel bar is provided with threads, and the sleeve is internally provided with internal threads matched with the steel bar for use.

Further, in order to better implement the present invention, adjacent reinforcing bars are bound to each other.

Further, in order to better realize the invention, a cable hole parallel to the length direction of the track beam is arranged in the concrete layer.

The utility model provides a magnetic suspension track roof beam post-cast section reinforcing bar muffjoint technology which characterized in that: the method comprises the following steps:

step S1: prefabricating a track beam, arranging a reserved hole on the inner surface of the joint of the lower part of the track beam, and installing a sleeve in the reserved hole;

step S2: transporting the prefabricated track beam to a construction site, positioning and installing the track beam in place, and installing the steel bars in the sleeves;

step S3: and concrete is poured between the connection parts of the track beams, and the reinforcing steel bars and the poured concrete form a concrete layer.

Further, in order to better implement the present invention, the sleeves in step S1 are uniformly distributed along the length direction of the track beam at equal intervals, and the sleeves on two corresponding track beams are staggered with each other.

Furthermore, in order to better realize the invention, the sleeve is internally provided with threads, and the steel bar is provided with external threads which are matched with the sleeve; and the reinforcing steel bars on the two track beams are mutually bound.

The beneficial effect that this scheme obtained is: .

The prefabricated efficiency of track roof beam can be improved to the pre-buried reinforcing bar of junction that need not be on this scheme prefabricated track roof beam to make the track roof beam be convenient for transport, and be favorable to reducing the cost of transportation, work such as reinforcing bar location, alignment need not carry on again in the later stage, can not lead to the fact destruction to the surface of track roof beam.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a partial top view of FIG. 1;

the concrete-filled steel rail comprises 1-a rail beam, 2-a concrete layer, 3-a steel bar, 4-a sleeve and 5-a cable hole.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

Example 1:

as shown in fig. 1 and 2, in this embodiment, a magnetic suspension track beam post-cast section steel bar sleeve connection structure is arranged between two track beams 1, and includes a plurality of sleeves 4 arranged on the inner side surface of the bottom of the track beam 1 and steel bars 3 arranged in the sleeves 4, the length of each steel bar 3 is smaller than the distance between the track beam 1 and is larger than one half of the distance between the track beam 1 and the track beam 1, and a concrete layer 2 is poured between the bottom of the track beam 1 and the track beam 1.

After this scheme is prefabricated track roof beam 1, because there is not pre-buried reinforcing bar in the junction of track roof beam 1 and the transportation of being convenient for, can effectively reduce track roof beam 1's cost of transportation, will transport prefabricated track roof beam 1 to the job site. The two track girders 1 are connected to each other to form an integral structure by installing reinforcing bars 3 in sleeves 4, connecting the reinforcing bars 3 of the two track girders 1 to each other, and casting concrete between the two track girders 1 to form a concrete layer 2.

When prefabricating track roof beam 1, make sleeve 4 according to construction requirement evenly distributed, after track roof beam 1 is prefabricated, can directly install the reinforcing bar 3 of suitable size, suitable specification in sleeve 4 at the scene, need not straighten, fix a position reinforcing bar 3 itself again, be favorable to improving the efficiency of construction, shorten construction cycle. When installing reinforcing bar 3, need not destroy track roof beam 1's surface, be favorable to guaranteeing the completedness and the pleasing to the eye of track roof beam 1 structure.

Example 2:

on the basis of the above embodiments, in the present embodiment, the sleeves 4 on the two track beams 1 are staggered at equal intervals along the length direction of the track beams 1.

Make sleeve 4 crisscross setting, can make the reinforcing bar 3 of installation on two reinforcing bars 3 avoid each other, make reinforcing bar 3 keep straight and do not take place to interfere to be favorable to making 3 evenly distributed of reinforcing bar, make the intensity of 2 places of concrete layer of pouring formation keep unanimous.

In this embodiment, two layers of sleeves 4 are disposed on the track beam 1 along the height direction of the track beam 1.

Therefore, the density of the steel bars in the concrete layer 2 can be increased to enhance the strength of the concrete layer 2 and increase the connection strength of the two track beams 1. Depending on the thickness of the joint, three or more sleeves 4 can also be provided to ensure sufficient strength of the concrete layer 2 at the joint.

In this embodiment, the sleeves 4 arranged along the height direction on the two track beams 1 are arranged in a staggered manner. So that the reinforcing steel bars 3 are mutually avoided in the vertical direction, mutual interference is avoided, and the uniform distribution of the reinforcing steel bars 3 is facilitated to ensure the strength of the concrete layer 2.

Example 3:

on the basis of the above embodiment, in this embodiment, the reinforcing bar 3 is provided with a thread, and the sleeve 4 is provided with an internal thread used in cooperation with the reinforcing bar 3. Therefore, the reinforcing steel bar 3 and the sleeve 4 can be connected through the threads, so that the connection strength of the reinforcing steel bar 3 and the sleeve 4 is enhanced.

In this embodiment, the adjacent reinforcing bars 3 are bound to each other. Thereby enabling the mutual connection between the reinforcing bars 3 and the reinforcing bars 3, and contributing to the improvement of the strength of the concrete layer 2.

Example 4:

on the basis of the above embodiments, in the present embodiment, the concrete layer 2 is provided with a cable hole 5 parallel to the length direction of the track beam 1. Therefore, cables can be conveniently laid in the cable holes 5, and the risk that the cables are exposed and damaged is avoided.

In this embodiment, other undescribed contents are the same as those in the above embodiment, and thus are not described again.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.