A hollow bridge pier with vase head type anti-falling beam force measuring function

Abstract

The utility model relates to a hollow pier of vase head type anti-falling beam force measuring which belongs to the technical field of city bridge pier design, including the curve section pier and straight line section pier of upper and lower connection, the pier top is provided with two groups of symmetrically arranged support hydraulic force measuring device, support hydraulic force measuring device can not only monitor control support counterforce when construction, can also monitor control support counterforce after bridge, improve structure safety, the support hydraulic force measuring device top is provided with the support of connecting bridge pier and bridge pier upper structure, the pier top is provided with two groups of symmetrically arranged air hole, the air hole is inserted with the limit rod connected with bridge pier upper structure, and the limit rod is connected with bridge pier upper structure and forms the limiting device, can limit the displacement of two directions simultaneously, and the limiting device is outside leakage, affects the problem of beautiful appearance, the pier inside is hollow structure, reduces the dosage of concrete, and hollow structure can also reduce the influence of hydration heat, thereby improving construction quality.

Description

Technical Field

[0001] This utility model belongs to the field of urban bridge pier design technology, and relates to a vase-shaped anti-fall beam force-measuring hollow pier, especially a vase-shaped anti-fall beam force-measuring hollow pier with double curved expanded head reinforced concrete on both the front and side of the pier of an urban landscape bridge. Background Technology

[0002] Traditional urban overpass "flower vase" piers are implemented in the following ways:

[0003] 1. Solid Vase-Shaped Pier: The vase-shaped pier is a single unit, changing from a smaller rectangular cross-section to a larger rectangular cross-section. The facade consists of two straight sections with equal cross-sections at the top and bottom, as well as a curved section in the middle. The side maintains a straight solid cross-section.

[0004] 2. Separated vase-shaped pier: The vase-shaped pier consists of two columns and a connecting beam. The columns change from a smaller rectangular cross-section to a larger cross-section. The column facade mainly consists of a straight section with uniform cross-section at the bottom and a curved section with varying cross-section at the top, while the side maintains a straight and uniform cross-section.

[0005] While traditional vase stools are widely used, they also have their shortcomings:

[0006] 1. The lateral dimensions of a solid, integral vase-shaped pier are limited by the support spacing. When the lateral dimension is large, and the central part of the pier is not hollowed out, a large amount of concrete is used. When the pier volume is large, the solid section causes the concrete to generate a large amount of heat of hydration, affecting the quality of concrete pouring and potentially impacting structural durability. A split vase-shaped pier directly transfers the force from the superstructure to the columns through supports, thus transmitting it to the foundation. Therefore, the columns have a smaller amplitude in curved sections to facilitate direct force transmission, resulting in a thinner structure. However, when the overall bridge landscape requires a sense of solidity, this thin structure can appear unstable, contradicting the design intent and weakening the bridge's sense of weight, leading to a less than expected aesthetic effect.

[0007] 2. Traditional vase-shaped piers do not have pre-reserved load-bearing positions for the stop blocks, so additional bridge pier blocks need to be installed on the vase-shaped piers. The landscape effect is generally poor, or the stop blocks can usually only restrict displacement in one direction, and the limiting device is exposed, which affects the aesthetics.

[0008] 3. The piers do not have the function of bearing force measurement. For multi-bearing systems, this may lead to the bearings coming loose, affecting structural safety.

[0009] 4. Traditional vase-shaped piers, for ease of construction, do not have curved surfaces on the sides, maintaining straight lines, which lacks a sense of spatial three-dimensionality and has a relatively simple shape. Utility Model Content

[0010] In view of this, in order to solve the problems of traditional integral solid vase-shaped piers which use a lot of concrete, the solid cross-section of which causes the concrete to generate a large amount of heat of hydration, affecting the quality of concrete pouring and potentially affecting structural durability; the block usually can only restrict one direction and the landscape effect is generally poor; and the pier does not have a support force measuring tool, which affects structural safety, this utility model provides a vase-shaped expanded-head anti-fall beam force measuring hollow pier.

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] A vase-shaped, expanded-head, anti-fall beam hollow bridge pier includes a curved section pier and a straight section pier connected vertically. Two sets of symmetrically arranged hydraulic force measuring devices are installed at the top of the pier. Above the hydraulic force measuring devices are supports connecting the pier and its superstructure. Two sets of symmetrically arranged ventilation holes are opened at the top of the pier. Limiting rods connected to the superstructure are inserted into the ventilation holes. Adhesive-filled rubber blocks are placed between the limiting rods and the ventilation holes to temporarily fix the limiting rods. The limiting rods are connected to the superstructure to form a limiting device. The pier is hollow inside.

[0013] Furthermore, the ventilation holes are located on the upper part of the pier and communicate with the hollow structure. The ventilation holes also serve as limiting holes, combining the two functions into one. This satisfies both ventilation requirements and limiting functions, reducing the need for additional blocks and improving the aesthetics of the bridge. The limiting device is formed by connecting the limiting rod to the superstructure of the pier. When the superstructure of the bridge is a concrete structure, the limiting rod can be anchored into the concrete. When it is a steel beam structure, stiffening ribs are used to weld the limiting rod to the steel beam. This can simultaneously limit displacement in both longitudinal and lateral directions, which is a significant advantage over traditional unidirectional limiting blocks (which can usually only limit displacement in one direction). The limiting device is built into the ventilation holes and is not exposed outside the pier, solving the problem of the traditional limiting device being exposed and affecting the aesthetics.

[0014] Furthermore, the limiting rod is made of high-strength steel, and its diameter is slightly smaller than that of the vent hole; thus ensuring the limiting function while allowing for slight displacement.

[0015] Furthermore, the hydraulic force measuring device for the support is shaped like a support pad stone, similar to the structure of a hydraulic jack.

[0016] Furthermore, a pier cap and pile foundation are sequentially installed below the piers on the straight sections.

[0017] Furthermore, the bridge piers use rounded transitions on both the inner and outer sides of the curved sections of the facade and sides, with the rounded sections tangent to the vertical sections to form tangent points; the height of the rounded transitions on the facade and sides is consistent, forming a spatial arc line.

[0018] Furthermore, the upper facade and the top side of the bridge piers have been cut inwards, resembling a diamond shape.

[0019] Furthermore, the top width of the bridge pier's facade is 8.448m, the bottom width is 4.5m, the top width of the side facade is 8.704m, and the bottom width is 4m.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. This utility model discloses a vase-shaped, flared-head type anti-fall beam hollow bridge pier, the pier's interior employing a hollow structure. This reduces the amount of concrete used, and the hollow structure also reduces the impact of hydration heat, thereby improving construction quality.

[0022] 2. The vase-shaped anti-fall beam force-measuring hollow bridge pier disclosed in this utility model has four ventilation holes that also serve as limiting holes on the top of the pier, and high-strength steel limiting rods are inserted therein. It can simultaneously limit displacement in two directions, solving the problem that traditional limiting blocks can usually only limit displacement in one direction, and the limiting device is exposed, affecting the aesthetics. At the same time, it reduces the need for additional pier blocks.

[0023] 3. The vase-shaped expanded-head anti-fall beam hollow bridge pier disclosed in this utility model has a hydraulic force measuring device for the bearings that can monitor and control the bearing reaction force during construction and can also monitor and control the bearing reaction force after the bridge is completed, thereby ensuring the uniform or reasonable stress distribution of the multi-bearing system bridge and improving the safety of the structural system.

[0024] 4. This utility model discloses a vase-shaped, expanded-head, anti-fall beam, force-measuring hollow bridge pier. The pier's inner and outer lines of the changing sections on both the facade and side surfaces use rounded transitions. These rounded transitions are tangent to the vertical sections, forming a spatial arc on both the facade and side surfaces, creating a spatial variation effect and enhancing the pier's three-dimensionality. The length of the curved transition sections is consistent with the pier's width, ensuring that piers of different widths maintain the same harmonious proportions. The significant variations in the curves on both sides contribute to a strong sense of spatial depth. Furthermore, an inward-cutting effect is applied near the top of both the facade and side surfaces, making the pier's top resemble a diamond, further enhancing the sense of spatial depth. The pier's robust structure gives a feeling of solidity.

[0025] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0027] Figure 1 This is a schematic elevation view of the hollow bridge pier with an expanded vase-shaped anti-fall beam for measuring force according to this utility model.

[0028] Figure 2 This is a side elevation diagram of the vase-shaped anti-fall beam force-measuring hollow bridge pier of this utility model.

[0029] Figure 3 This is a schematic diagram of the top surface of the vase-shaped anti-fall beam force-measuring hollow bridge pier of this utility model;

[0030] Figure 4 This is a schematic diagram of the bottom cross section of the hollow bridge pier with an expanded vase-shaped anti-fall beam for force measurement, which is the present invention.

[0031] Figure 5 This is a schematic diagram of the limiting hole of the hollow bridge pier with the vase-shaped expanded head anti-fall beam force measuring device of this utility model.

[0032] Attached reference numerals: 1. Straight section pier; 2. Curved section pier; 3. Pier cap; 4. Pile foundation; 5. Hydraulic force measuring device for bearing; 6. Bearing; 7. Ventilation hole; 8. Limiting rod; 9. Hollow structure; 10. Rubber block. Detailed Implementation

[0033] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] like Figures 1-4 The diagram shows a vase-shaped, expanded-head type anti-fall beam hollow bridge pier, comprising a curved section pier 2 and a straight section pier 1 connected vertically. Below the straight section pier 1, a pile cap 3 and a pile foundation 4 are arranged sequentially. The interior of the pier is a hollow structure 9. Two sets of symmetrically arranged ventilation holes 7 are opened at the top of the pier. The ventilation holes 7 are located on the upper part of the hollow structure 9 and communicate with the hollow structure 9. The ventilation holes 7 also serve as limiting holes. The ventilation holes 7 and the limiting holes are combined into one, which satisfies the ventilation requirements and realizes the limiting function, reduces the design of additional blocks, and improves the aesthetics of the bridge.

[0035] A limiting rod 8, connected to the superstructure of the bridge pier, is inserted into the vent 7. The limiting rod 8 is made of high-strength steel, and its diameter is slightly smaller than that of the vent 7. A rubber block 10, which is used for bonding and filling, is placed between the limiting rod 8 and the vent 7. The rubber block 10 is as follows: Figure 5As shown, it can temporarily fix the limiting rod 8. That is, it ensures the limiting function while allowing small displacement.

[0036] The limiting rod 8 is connected to the superstructure of the bridge pier to form a limiting device. When the superstructure of the bridge is a concrete structure, the limiting rod 8 can be anchored into the concrete. When it is a steel beam structure, stiffening ribs are used to weld the limiting rod 8 to the steel beam. This can limit the displacement in both longitudinal and lateral directions at the same time, which is a significant advantage compared to the traditional unidirectional limiting block (which can usually only limit the displacement in one direction). The limiting device is built into the vent hole 7 and is not exposed, which solves the problem of the traditional limiting device being exposed and affecting the aesthetics.

[0037] Two sets of symmetrically arranged hydraulic force measuring devices 5 are installed on the top of the bridge pier, each shaped like a bearing pad. The hydraulic force measuring device 5 is a technology well-known to those skilled in the art; it is a device used to monitor the stress on bearings 6 in engineering structures such as bridges and buildings, and is widely used in structural health monitoring. Its working principle is as follows: The core of the hydraulic force measuring sensing system is a hydraulic force sensor. When the bearing 6 is subjected to a vertical load, the pressure is transmitted through the bearing 6 body to the hydraulic force sensor. The hydraulic oil chamber inside the sensor will generate corresponding oil pressure changes due to pressure variations, and these changes are sensed by the pressure-sensitive element within the sensor. The hydraulic force sensor converts the sensed pressure change into an electrical signal (such as a current signal) and transmits the signal to an external testing instrument or monitoring system via a transmitter. For example, the hydraulic sensor generates a small displacement through a thin film, changing the resistance value and thus outputting a standard current signal. After receiving the signal transmitted by the sensor, the testing instrument or monitoring system, through calibration and calculation, converts the electrical signal into an actual force value, thereby achieving real-time monitoring of the vertical bearing capacity of the bearing 6. This is a passive monitoring of the magnitude of the force.

[0038] In this patent, the hydraulic force measuring device 5 for the support is similar to a hydraulic jack structure, but with appropriate modifications to resemble a support pad. The modified device includes a valve switch to allow for the opening and closing of the oil circuit at any time. Its working principle is as follows: Pressure oil is transmitted to the jack through the oil circuit via hydraulic cylinders, pistons, and other components. Pascal's law amplifies the pressure generated by the small piston to the large piston, thus generating a lifting force. Once the lifting force is determined, the required reaction force of the support 6 for the structural system can be obtained. The oil circuit is then closed. If subsequent readjustment of the support 6 force is needed, it can be readjusted by reconnecting the oil circuit. This hydraulic force measuring device 5, connected via a valve and with hydraulic adjustment of the lifting height, can actively adjust and monitor the magnitude of the support 6 force to meet the stress requirements of the structural system.

[0039] Above the hydraulic force measuring device 5, there is a support 6 that connects the pier and the superstructure of the pier.

[0040] The upper facade and the top of the sides of the bridge piers are cut inwards, resembling a diamond shape.

[0041] The bridge piers feature rounded transitions on both the inner and outer sides of their curved sections on the facade and sides. These rounded sections are tangent to the vertical sections, forming tangency points. The rounded sections on the facade and sides create a spatial arc, giving the piers a sense of spatial variation and enhancing their three-dimensionality. The length of the curved sections remains consistent with the pier width, ensuring harmonious proportions for piers of varying widths. The significant variations in the curves on both sides contribute to a strong sense of spatial depth. Furthermore, an inward-curving effect near the top of both the facade and sides gives the piers a diamond-like shape, further enhancing the sense of spatial depth. The piers' robust structure conveys a sense of solidity and stability.

[0042] Example

[0043] The pedestrian bridge in this city has a pier top width of 8.448m, a bottom width of 4.5m, a side top width of 8.704m, and a side bottom width of 4m. The facade and sides feature curved transitions at the same height, forming a spatial arc.

[0044] The construction steps for this bridge pier are as follows:

[0045] S1. Construction of pile foundation 4; S2. Construction of pier cap 3; S3. Construction of straight section pier 1 using steel formwork in stages according to pier height; S4. Construction of curved section pier 2 using steel formwork in one stage, reserving 4 ventilation holes 7; S5. Construction of hydraulic force measuring device 5 for bearing on top of pier; S6. Construction and installation of bearing 6; S7. Installation of limit bar 8 in ventilation hole 7.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A vase-shaped, flared-head type anti-fall beam hollow bridge pier, comprising a curved section pier and a straight section pier connected vertically, characterized in that, The top of the pier is equipped with two sets of symmetrically arranged hydraulic force measuring devices. Above the hydraulic force measuring devices, there is a support connecting the pier and the superstructure of the pier. The top of the pier has two sets of symmetrically arranged ventilation holes. A limiting rod connected to the superstructure of the pier is inserted into the ventilation hole. The limiting rod is connected to the superstructure of the pier to form a limiting device. The pier is hollow inside.

2. The vase-shaped, flared-head type anti-fall beam force-measuring hollow bridge pier as described in claim 1, characterized in that, The vent is located on the upper part of the hollow structure and communicates with the hollow structure; the vent also serves as a limiting hole.

3. The vase-shaped, flared-head type anti-fall beam force-measuring hollow bridge pier as described in claim 1, characterized in that, The limiting rod is made of high-strength steel, and its diameter is slightly smaller than that of the vent hole. A rubber block is placed between the limiting rod and the vent hole.

4. The vase-shaped, flared-head type anti-fall beam force-measuring hollow bridge pier as described in claim 1, characterized in that, The hydraulic force measuring device for the support is shaped like a support pad.

5. A vase-shaped, flared-head type anti-fall beam, force-measuring hollow bridge pier as described in claim 1, characterized in that, The straight section of the bridge pier is provided with a pile cap and pile foundation in sequence below it.

6. The vase-shaped, flared-head type anti-fall beam force-measuring hollow bridge pier as described in claim 1, characterized in that, The bridge piers feature rounded transitions on both the inner and outer sides of the curved sections on the facade and sides. The rounded sections are tangent to the vertical sections, forming a tangent point. The height of the rounded transitions on the facade and sides is consistent, forming a spatial arc.

7. A vase-shaped, flared-head type anti-fall beam force-measuring hollow bridge pier as described in any one of claims 1-6, characterized in that, The top width of the bridge pier is 8.448m, the bottom width is 4.5m, the top width of the side is 8.704m, and the bottom width is 4m.

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