Prefabricated pier column segment profile steel connecting structure

Abstract

The utility model discloses a prefabricated pier column segment profile steel connecting structure which comprises a bearing platform, the top of the bearing platform is vertically connected with a pier column, the top of the pier column is connected with a pier cap, the pier column comprises an upper half part and a lower half part, the bottom of the upper half part and the top of the lower half part are each provided with a profile steel embedded part, and the bottom of the upper half part is provided with a profile steel embedded part. Profile steel embedded parts are embedded in the profile steel embedded parts, the profile steel embedded parts at the two ends are oppositely arranged and connected through profile steel buckles, and cast-in-place concrete layers are arranged outside the profile steel embedded parts; by arranging the profile steel embedded parts, the problem of pain points of the existing prefabricated pier can be effectively solved, and the effects of being easy and convenient to construct, economical, reliable and resistant to earthquake damage are achieved.

Description

Technical Field

[0001] The utility model relates to the field of assembled bridge piers, in particular to a prefabricated pier column segment steel connection structure. Background Art

[0002] Prefabricated bridge piers are based on the idea of ​​breaking the whole into parts. The overall structure is decomposed into several prefabricated components. After the prefabricated components are processed and manufactured inside the factory, the segmented prefabricated components are transported to the construction site and then assembled into a whole in a certain way, thereby realizing the construction technology of excellent overall structure.

[0003] At present, due to the splicing between segments, prefabricated bridge piers have many problems such as insufficient overall performance, difficult design and construction, complex on-site construction and the need for quality assurance. The connection methods used for prefabricated and assembled piers at home and abroad have the problems of complicated procedures, the need for temporary brackets to assist in construction, difficult precision control, inability to detect grouting quality, poor construction quality in cold areas in winter, poor node force or force transmission performance, poor integrity, unsuitability for high-intensity areas, and high cost.

[0004] Therefore, there is an urgent need for a prefabricated pier segment steel connection structure that can solve the above-mentioned problems existing in the existing prefabricated bridge piers. Utility Model Content

[0005] The utility model aims to provide a prefabricated pier column segment steel connection structure to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above purpose, the utility model provides the following solutions:

[0007] The utility model provides a prefabricated pier column segment steel connection structure, comprising a cap, the top of the cap is vertically connected to the pier, the top of the pier is connected to the pier cap, the pier comprises an upper half and a lower half, the bottom of the upper half and the top of the lower half are both provided with a steel embedded part, the steel embedded part has steel embedded parts embedded therein, the steel embedded parts at both ends are arranged relatively to each other and connected by steel buckles, and the outside of the steel embedded parts is provided with a cast-in-place concrete layer.

[0008] Preferably, the foundation, the pier column and the pier cap are all prefabricated structures.

[0009] Preferably, overlapping longitudinal reinforcement is provided between the upper part and the lower part.

[0010] Preferably, the steel embedded part comprises a cross steel, the bottom of the cross steel is connected to a bottom steel, an edge of the bottom steel is provided with a groove, and the steel buckle is limited in the groove.

[0011] Preferably, a rib is provided between the cross-shaped steel and the bottom shaped steel.

[0012] Preferably, a steel mortise and tenon is provided at the middle portion of the outer side of the bottom steel section, and the steel mortise and tenon comprises a tenon head and a tenon groove, and the tenon head and the tenon groove match each other.

[0013] Compared with the prior art, the utility model has achieved the following beneficial technical effects:

[0014] The utility model provides a prefabricated pier column segment steel connection structure that is easy to construct. The utility model adopts steel buckle connection technology, eliminates on-site welding work, does not require temporary brackets, reduces construction preparation work to the greatest extent, reduces construction difficulties, and effectively improves construction efficiency.

[0015] The utility model provides a prefabricated pier column segment steel connection structure with simple connection, easy control of accuracy and detectability. The utility model abandons conventional grouting sleeves, bellows, socket-type and other connection methods, and is easier to control the position and accuracy during installation, which is convenient for workers to operate. Compared with other connection methods, it can better ensure the quality of on-site construction.

[0016] The utility model provides a prefabricated pier column segment steel connection structure which can be used for low-temperature construction in cold areas. The utility model can first construct the connection part with less temperature influence, and then pour concrete in the node range when the temperature is highest during the day.

[0017] The utility model provides a prefabricated pier segment steel connection structure with better integrity and more reasonable force, which is more suitable for high-intensity areas. The steel structure connector of the utility model can withstand most or all axial forces, shear forces and bending moments, and the load transfer is more in line with the design theory than the connection of grouting sleeves. The ductility of steel is better than that of concrete. Therefore, by adopting this connection method, the seismic performance of the node part is better than that of the full cast-in-place structure or grouting sleeves and other connection forms, which is more suitable for high-intensity areas.

[0018] The utility model provides a prefabricated pier column segment steel connection structure with good economic efficiency. The utility model proposes a new node connection form, in which ordinary concrete or fine stone concrete can be used in the node area. Compared with the three main node splicing forms of prefabricated bridge piers at this stage, only the steel cost of the connection parts is increased, so the cost can be well controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A schematic diagram of the overall structure of a prefabricated pier column segment steel connection structure provided by the utility model;

[0021] Figure 2 A schematic elevation diagram of a steel embedded part in a prefabricated pier segment steel connection structure provided by the utility model;

[0022] Figure 3 A schematic plan view of the middle-shaped steel embedded parts in the upper part of a prefabricated pier column segment steel connection structure provided by the utility model;

[0023] Figure 4 A schematic plan view of a medium-shaped steel embedded part in the lower part of a prefabricated pier column segment steel connection structure provided by the utility model;

[0024] Figure 5 A three-dimensional schematic diagram of a steel clip in a prefabricated pier segment steel connection structure provided by the utility model;

[0025] In the figure: 1: pier cap, 2: pier column, 3: embedded part of steel section, 4: embedded part of steel section, 4-1: cross steel section, 4-2: rib plate, 4-3: groove, 4-4: bottom steel section, 5: cast-in-place concrete, 6: steel section clip, 7: steel section mortise and tenon, 7-1: steel section tenon, 7-2: steel section mortise and tenon groove, 8: steel bar overlap, 9: cap. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model aims to provide a prefabricated pier column segment steel connection structure to solve the problems existing in the prior art.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Embodiment 1:

[0030] The present embodiment provides a prefabricated pier segment steel connection structure, including a cap 9, the top of the cap 9 is vertically connected to the pier 2, the top of the pier 2 is connected to the pier cap 1, the pier 2 includes an upper part and a lower part, the bottom of the upper part and the top of the lower part are provided with a steel embedded part 3, a steel embedded part 4 is embedded in the steel embedded part 3, the steel embedded parts 4 at both ends are relatively arranged and connected by a steel clip 6, a cast-in-place concrete layer 5 is provided on the outside of the steel embedded part 4, the cast-in-place concrete layer 5 can be made of cast-in-place ordinary concrete or fine stone concrete, which can better control the cost and play a role in corrosion and impact protection for the internal steel embedded parts, the steel embedded parts 4 of the node themselves can withstand most or all of the axial force, shear force and bending moment, the load transfer is more in line with the design theory, and is suitable for high-intensity areas.

[0031] As an implementation method, the foundation 9, the pier column 2 and the pier cap 1 are all prefabricated structures, and the factory prefabrication can effectively save construction time.

[0032] As an implementation mode, overlapping longitudinal reinforcement 8 is provided between the upper half and the lower half.

[0033] As an implementation method, the steel embedded part 4 includes a cross steel 4-1, which is a web perpendicular to each other, and the edge of the web is provided with a flange. The cross steel 4-1 is provided with bolts (omitted in the view) to increase the shear strength of the contact surface. The bottom of the cross steel 4-1 is connected to the bottom steel 4-4, and the edge of the bottom steel 4-4 is provided with a groove 4-3. The steel clip 6 is limited in the groove 4-3, so that the node connection method is simple and fast, easy to control the position and accuracy, and not affected by environmental factors.

[0034] As an implementation method, a rib 4-2 is provided between the cross-shaped steel 4-1 and the bottom shaped steel 4-4, which can effectively improve the bending and shearing resistance of the node.

[0035] As an implementation method, a steel mortise and tenon 7 is provided in the middle part of the outer side of the bottom steel section 4-4, and the steel mortise and tenon 7 includes a tenon 7-1 and a tenon groove 7-2, and the tenon 7-1 and the tenon groove 7-2 cooperate with each other. In this embodiment, the tenon 7-1 is provided on the outer side of the upper bottom steel section 4-4, and the tenon groove 7-2 is provided on the outer side of the lower bottom steel section 4-4, so that the steel embedded parts of the upper part and the steel embedded parts of the lower part can be accurately aligned by the two. Of course, in other embodiments, the positions of the tenon 7-1 and the tenon groove 7-2 can be interchanged.

[0036] The utility model uses specific examples to illustrate the principle and implementation of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A prefabricated pier column segment steel connection structure, comprising a cap, the top of which is vertically connected to a pier column, the top of which is connected to a pier cap, characterized in that: The pier column comprises an upper part and a lower part, the bottom of the upper part and the top of the lower part are both provided with a steel embedded part, and a steel embedded part is embedded in the steel embedded part. The steel embedded parts at both ends are arranged relatively to each other and connected by steel buckles, and a cast-in-place concrete layer is provided on the outside of the steel embedded part.

2. The prefabricated pier segment steel connection structure according to claim 1 is characterized in that: The bearing platform, the pier column and the pier cap are all prefabricated structures.

3. The prefabricated pier segment steel connection structure according to claim 1, characterized in that: Overlapping longitudinal reinforcement is arranged between the upper part and the lower part.

4. The prefabricated pier segment steel connection structure according to claim 1, characterized in that: The steel embedded part comprises a cross steel, the bottom of which is connected to a bottom steel, a groove is provided at the edge of the bottom steel, and the steel buckle is limited in the groove.

5. The prefabricated pier segment steel connection structure according to claim 4 is characterized in that: A rib plate is provided between the cross-shaped steel and the bottom shaped steel.

6. The prefabricated pier segment steel connection structure according to claim 4, characterized in that: A steel mortise and tenon is provided at the middle part of the outer side of the bottom steel section, and the steel mortise and tenon comprises a tenon head and a tenon groove, and the tenon head and the tenon groove match each other.

Images