Stable supporting system suitable for double-T-beam structure
By setting end crossbeams and embedded steel plates at both ends of the double T-beam, and combining them with plate rubber bearings and bearing pads to form a triangular support structure, the problem of bearing detachment in the double T-beam structure is solved, and the stability and construction efficiency of the bridge are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- COMM DESIGN INST CO LTD OF JIANGXI PROV
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-01
AI Technical Summary
In existing double-T beam structures, uneven stress on plate rubber bearings can cause some bearings to come loose, which in turn leads to other bearing defects such as bulging and shear deformation.
By setting end crossbeams at both ends of the double T-beams and pre-embedding steel plates on their bottom surfaces to connect plate rubber bearings, a triangular stable support structure is formed. The combination of pre-embedded steel plates, plate rubber bearings and bearing pads is used to achieve load transfer and structural support, thereby enhancing the stability and seismic performance of the bridge.
It effectively solved the problem of the four supports of the double T-beam being disconnected, improved the stability and construction efficiency of the bridge, and enhanced the load transfer capacity and seismic resistance.
Smart Images
Figure CN224186599U_ABST
Abstract
Description
A robust support system suitable for double T-beam structures Technical Field
[0001] This utility model relates to the field of bridge engineering technology, and in particular to a stable support system suitable for double T-beam structures. Background Technology
[0002] The superstructure of the double T-beams mainly adopts a prefabricated assembly construction process. First, standardized prefabrication is carried out in the factory. Then, the prefabricated components are transported to the construction site by special transportation equipment. The double T-beams are placed at the support positions using bridge erecting machines or heavy hoisting equipment. Finally, the steel bars protruding from the wet joints, end beams and diaphragms are welded or mechanically tied on site and connected by cast-in-place concrete to form rigid nodes. In this way, multiple independent prefabricated double T-beams are formed into an overall load-bearing structural system.
[0003] The conventional support system consists of plate rubber bearings installed at the bottom of the beam ribs at the ends of the double T-beams, forming a simple support system with four bearings. Under dead and live loads, the plate rubber bearings are subjected to uneven stress, which can cause some bearings to come loose, leading to other bearings suffering from bulging, shear deformation, and other defects due to greater stress. Summary of the Invention
[0004] (a) Technical problems to be solved
[0005] To overcome the shortcomings of existing technologies, a stable support system suitable for double T-beam structures is proposed to solve the problem that uneven stress on current plate rubber bearings can lead to some bearings coming loose, which in turn causes other bearings to bulge, shear deformation, and other defects due to excessive stress.
[0006] (II) Technical Solution
[0007] This utility model is achieved through the following technical solution: This utility model proposes a stable support system suitable for double T-beam structures, including double T-beams, wherein two adjacent double T-beams are connected by cast-in-place wet joints.
[0008] The double T-beam is provided with an end crossbeam at each end of the beam, and two beam ribs are provided on each side of the end crossbeam.
[0009] Pre-embedded steel plates are provided on the bottom end faces of the beam ribs on both sides of the end crossbeam at one end of the double T beam.
[0010] An embedded steel plate is provided at the middle of the bottom end face of the other end crossbeam of the double T-beam;
[0011] Furthermore, the bottom end face of the pre-embedded steel plate is connected to a plate-type rubber support.
[0012] Furthermore, the bottom end face of each of the plate rubber bearings is supported and connected with a bearing pad.
[0013] Furthermore, the double T-beam is a simply supported structural system.
[0014] Furthermore, the width of the bottom end face of the end beam and the width of the bottom end face of the beam rib of the double T beam are both greater than the width of the embedded steel plate.
[0015] Furthermore, the end beam is located between the two ends of the double T-beam and is connected to the double T-beam with steel bars, and then cast in concrete to form a whole.
[0016] Furthermore, the plate rubber bearing is rectangular, and the top surface of the plate rubber bearing contacts the embedded steel plates on the bottom surfaces of the two beam ribs of the double T beam and the embedded steel plates on the bottom surface of the end cross beam, so that its bottom surface is supported on the bearing pad stone respectively.
[0017] (III) Beneficial Effects
[0018] Compared with the prior art, this utility model has the following advantages:
[0019] 1. In this utility model, by setting two plate rubber supports on the bottom surface of the double T beam rib at one end and setting one plate rubber support on the bottom surface of the end cross beam at the middle of the other end, a triangular stable support is formed, thereby effectively solving the problem of the four supports of the double T beam being disconnected under dead load and live load. Attached Figure Description
[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0021] Figure 1 is a side view of the present invention.
[0022] Figure 2 is a schematic diagram of the structure of this utility model from below;
[0023] Figure 3 is a schematic diagram of a cross-sectional structure on one side of this utility model;
[0024] Figure 4 is a schematic diagram of the cross-sectional structure of the other side of this utility model;
[0025] In the diagram: Double T-beam-1, End crossbeam-2, Embedded steel plate-3, Plate rubber bearing-4, Bearing pad stone-5. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0027] Please refer to Figures 1-4. This utility model provides a stable support system suitable for double T-beam structures, including double T-beams 1. The double T-beams 1 are simply supported structural systems, which makes them simple to bear force, more convenient to construct, and increases the scope of application. The two adjacent double T-beams 1 are connected by cast-in-place wet joints, which makes it easy to transfer prestress in terms of structural performance, realize the overall stress-bearing work, and increase the anti-corrosion effect and construction efficiency.
[0028] Each of the two ends of the double T-beam 1 is provided with an end crossbeam 2 to strengthen stability, and each end crossbeam 2 is provided with two beam ribs on its side to increase the stress strength. The end crossbeam 2 is set between the two ends of the double T-beam 1, so that the end crossbeam 2 can easily bear and distribute the force transmitted by the longitudinal beam, increasing the stability of the bridge. It is connected to the double T-beam 1 with steel bars and cast with concrete to form a whole, which increases its connectivity.
[0029] Pre-embedded steel plates 3 are provided on the bottom end faces of the beam ribs on both sides of the end crossbeam 2 at one end of the double T beam 1 to provide support. At the other end of the double T beam 1, a pre-embedded steel plate 3 is provided in the middle of the bottom end face of the end crossbeam 2. The pre-embedded steel plate 3 makes it easier to fix and assemble the equipment later, providing convenience for building construction. The width of the bottom end face of the end crossbeam 2 and the width of the bottom end face of the beam rib of the double T beam 1 are both greater than the width of the pre-embedded steel plate 3, which facilitates the support of the pre-embedded steel plate 3 and avoids the situation where external protrusions cause inconvenience in installation.
[0030] Furthermore, the bottom end face of the pre-embedded steel plate 3 is connected to a rectangular plate rubber bearing 4, which plays the role of load transfer and structural support. It is also suitable for horizontal displacement and rotation, increasing the effect of seismic isolation and seismic resistance. The bottom end face of the plate rubber bearing 4 is supported and connected to the bearing pad stone 5 for support and load bearing, which facilitates the adjustment of height difference and slope. The top end face of the plate rubber bearing 4 contacts the pre-embedded steel plate 3 on the bottom end face of the two beam ribs of the double T beam 1 and the pre-embedded steel plate on the bottom end face of the end cross beam 2, so that its bottom end face is supported on the bearing pad stone 5 respectively. In this way, after the plate rubber bearing 4 and the bearing pad stone 5 are connected, the plate rubber bearing 4 and the bearing pad stone 5 can provide force support and reinforcement.
[0031] Working principle: Two pre-embedded steel plates 3 are connected to one side of the two beam ribs on the side of the end crossbeams 2 set at both ends of the double T beam 1, and the other side of the end crossbeam 2 is connected to the bottom end face of the middle of the two beam ribs with a pre-embedded steel plate 3. Plate rubber bearings 4 are connected to the lower end of the pre-embedded steel plates 3, and the lower end of the plate rubber bearings 4 is supported by bearing pads 5, thus forming a triangular support structure, which can stably support the double T beam and effectively solve the problem of the four supports being disconnected.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A stable support system suitable for double T-beam structures, comprising double T-beams (1), wherein two adjacent double T-beams (1) are connected by cast-in-place wet joints, characterized in that; The double T-beam (1) has an end crossbeam (2) at each end of the beam, and two beam ribs are provided on each side of the end crossbeam (2); the bottom surfaces of the beam ribs on both sides of the end crossbeam (2) at one end of the double T-beam (1) are provided with embedded steel plates (3); the middle of the bottom surface of the end crossbeam (2) at the other end of the double T-beam (1) is provided with an embedded steel plate (3); and the bottom surface of the embedded steel plate (3) is connected to a plate rubber support (4).
2. The stable support system for a double-T beam structure according to claim 1, characterized in that: The bottom end face of the plate rubber bearing (4) is supported by bearing pads (5).
3. A stable support system suitable for double-T beam structures according to claim 1, characterized in that: The double T-beam (1) is a simply supported structural system.
4. A stable support system suitable for double-T beam structures according to claim 1, characterized in that: The width of the bottom end face of the end beam (2) and the width of the bottom end face of the beam rib of the double T beam (1) are both greater than the width of the embedded steel plate (3).
5. A stable support system suitable for double-T beam structures according to claim 1, characterized in that: The end beam (2) is set between the two ends of the double T beam (1) and is connected to the double T beam (1) with steel bars and then cast with concrete to form a whole.
6. A stable support system suitable for double-T beam structures according to claim 2, characterized in that: The plate rubber bearing (4) is rectangular, and the top surface of the plate rubber bearing (4) contacts the pre-embedded steel plate (3) on the bottom surface of the two beam ribs of the double T beam (1) and the pre-embedded steel plate on the bottom surface of the end beam (2), so that its bottom surface is supported on the bearing pad (5).