Mass concrete abutment with stable structure
By designing a multi-layered gradient composite structure and anti-collision components, the stress concentration problem of large-volume concrete piers under dynamic working conditions was solved, improving fatigue resistance and deformation resistance, and extending the facility maintenance cycle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional large-volume concrete piers are prone to stress concentration under dynamic conditions such as ship impact, seismic waves or temperature changes, leading to concrete cracking and steel corrosion. Existing reinforcement technologies are difficult to balance structural toughness and maintenance costs.
The system employs a multi-layered gradient composite structure, including carbon fiber cloth, elastic damping adhesive layer, multiple concrete layers, reinforcing ribs, and anti-collision components. The gradient composite structure achieves the gradual dissipation of dynamic loads and stress redistribution. Combined with the anti-collision components, it absorbs the initial impact energy and decomposes the residual load, forming a multi-level defense chain.
It significantly improves the structure's resistance to fatigue and deformation under complex working conditions, extends the facility maintenance cycle, reduces the risk of local damage, and achieves a balance between structural strength and operability.
Smart Images
Figure CN224077953U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of civil engineering technology, specifically relating to a large-volume concrete pier with a stable structure. Background Technology
[0002] In the field of civil engineering, large-volume concrete piers and abutments serve as key load-bearing structures for bridge foundations, port terminals, and deep foundations of super high-rise buildings, and their performance directly affects the safety and durability of the overall project. Due to their large size and complex constraints, these structures have long faced multiple challenges: First, the thermodynamic properties of materials and limitations in construction techniques result in poor adaptability to dynamic loads. Existing reinforcement techniques mostly rely on the later addition of steel sleeves or carbon fiber cloth, which creates maintenance blind spots and affects the overall structural integrity. Although the rigid reinforcement scheme recommended by current codes can improve the ultimate bearing capacity, it is difficult to balance the structural toughness requirements with the maintenance costs throughout the entire life cycle, becoming a key bottleneck restricting the safe service of major projects.
[0003] Traditional designs often employ a single concrete pour combined with rigid steel reinforcement. While this can withstand static loads, it is prone to stress concentration under dynamic conditions such as ship impacts, seismic waves, or temperature fluctuations, leading to problems such as concrete cracking and steel corrosion.
[0004] Therefore, we made improvements and proposed a large-volume concrete pier with a stable structure. Utility Model Content
[0005] The purpose of this invention is to provide a large-volume concrete pier with a stable structure to solve the technical problems of traditional designs that mostly use single concrete pouring with rigid steel reinforcement. Although these designs can bear static loads, they are prone to stress concentration under dynamic conditions such as ship impacts, seismic waves, or temperature changes, leading to concrete cracking and steel corrosion.
[0006] To solve the above-mentioned technical problems, this utility model provides a large-volume concrete pier with a stable structure, including a base, a stabilizing component arranged on the outside of the base, a reinforcing component arranged on the outside of the stabilizing component, and an anti-collision component arranged on the outside of the reinforcing component.
[0007] The stabilizing component includes a carbon fiber cloth, an elastic damping adhesive layer, a first concrete layer, and a second concrete layer. The carbon fiber cloth is disposed on the outside of the base, the elastic damping adhesive layer is disposed on the outside of the carbon fiber cloth, the first concrete layer is disposed on the outside of the elastic damping adhesive layer, and the second concrete layer is disposed on the outside of the first concrete layer.
[0008] Furthermore, the reinforcing component includes reinforcing ribs and placement grooves, the two reinforcing ribs being disposed on the top of the first concrete layer and the second concrete layer, and the side of the reinforcing ribs being L-shaped.
[0009] Furthermore, the anti-collision plate is disposed on one side of the second concrete layer, and the anti-collision block is disposed on one side of the anti-collision plate.
[0010] Furthermore, a drainage groove is provided on the top of the second concrete layer, the edge of the drainage groove is rounded, and the drainage groove is located on the outside of the second concrete layer.
[0011] Furthermore, a protective steel plate is provided on the outside of the first concrete layer. The protective steel plate is located on top of the second concrete layer. The protective steel plate has an L-shaped top view. Four protective steel plates are respectively provided on the outside of the first concrete layer.
[0012] Furthermore, the outer side of the second concrete layer is provided with anti-slip texture, the anti-slip texture being rhomboid in shape.
[0013] Furthermore, a buffer pressure bar is bolted between the crash barrier and the second concrete layer.
[0014] The beneficial effects of this utility model are:
[0015] 1. By setting up stabilizing components, the component achieves the gradual dissipation of dynamic loads and stress redistribution through a multi-layered gradient composite structure. The innermost layer is combined with the base to form an interface reinforcement layer to improve the overall integrity. The middle layer uses the properties of viscoelastic materials to convert impact energy into heat energy, while the outer rigid shell provides the main load-bearing interface, forming a "rigid-flexible synergy" stress transmission path, which significantly improves the structure's fatigue resistance and deformation resistance under complex working conditions.
[0016] 2. By setting up reinforcing components, a geometrically optimized embedded support system is realized in key load-bearing areas. The spatial truss structure with a specific angle not only achieves efficient transfer of top load to the base, but also suppresses interlayer shear slip of concrete through the principle of triangular stability. At the same time, the reserved adaptable cavity provides a physical channel for later maintenance or functional expansion, achieving a balance between structural strength and operability.
[0017] 3. By setting up anti-collision components, a modular protection system is deployed facing the direction of external impact risk. The front contact unit absorbs the initial impact kinetic energy through deformation mechanism, and the rear linkage mechanism decomposes the residual load into multi-directional components and introduces them into the main structure bearing frame, forming a three-level defense chain of "contact-energy dissipation-conduction". This reduces local damage while preventing the impact energy from being transmitted deep into the structure, and significantly extends the facility maintenance cycle.
[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 A structural schematic diagram of a large-volume concrete pier with a stable structure provided by this utility model;
[0021] Figure 2 A front view structural schematic diagram of a large-volume concrete pier with a stable structure provided by this utility model;
[0022] Figure 3 A top view of the structure of the large-volume concrete pier with stable structure provided by this utility model;
[0023] Figure 4 A bottom view of the structure of a large-volume concrete pier with a stable structure provided by this utility model.
[0024] Figure 5 This utility model provides a stable structure for large-volume concrete piers. Figure 3 Enlarged view of the structure at point A in the middle.
[0025] In the picture:
[0026] 1. Base; 2. Stabilizing component; 3. Reinforcing component; 4. Anti-collision component; 5. Drainage channel; 6. Rounded corner; 7. Protective steel plate; 8. Anti-slip texture; 9. Buffer pressure bar; 201. Carbon fiber cloth; 202. Elastic damping adhesive layer; 203. First concrete layer; 204. Second concrete layer; 301. Reinforcing rib; 302. Placement groove; 401. Anti-collision plate; 402. Anti-collision block. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0028] Example:
[0029] like Figures 1 to 5As shown, a large-volume concrete pier with a stable structure includes a base 1, a stabilizing component 2 is provided on the outside of the base 1, a reinforcing component 3 is provided on the outside of the stabilizing component 2, and an anti-collision component 4 is provided on the outside of the reinforcing component 3.
[0030] like Figure 3 As shown, the stabilizing component 2 includes a carbon fiber cloth 201, an elastic damping adhesive layer 202, a first concrete layer 203, and a second concrete layer 204. The carbon fiber cloth 201 is disposed on the outside of the base 1, the elastic damping adhesive layer 202 is disposed on the outside of the carbon fiber cloth 201, the first concrete layer 203 is disposed on the outside of the elastic damping adhesive layer 202, and the second concrete layer 204 is disposed on the outside of the first concrete layer 203. This layered structure dissipates energy step by step through the material properties. The carbon fiber cloth 201, as the innermost layer, provides high tensile strength and constrains the deformation of the base 1. The elastic damping adhesive layer 202 absorbs vibration energy by utilizing the high damping characteristics of viscoelastic materials, reducing the stress wave transmission efficiency. The first concrete layer 203, as the main load-bearing structure, disperses the load through its rigid mass. The second concrete layer 204, as the outer protective shell, uses higher grade concrete to improve wear resistance and impermeability. The double-layer concrete structure forms a gradient strength distribution, effectively inhibiting the propagation of temperature cracks.
[0031] like Figure 2 As shown, the reinforcing component 3 includes reinforcing ribs 301 and placement grooves 302. The two reinforcing ribs 301 are disposed on the top of the first concrete layer 203 and the second concrete layer 204. The side of the reinforcing rib 301 is L-shaped. The L-shaped reinforcing rib 301 achieves bidirectional reinforcement through geometric optimization. The inclined side and the two L-shaped sides are respectively anchored to the joint surface of the two concrete layers, forming a spatial truss effect, which converts the top bending moment into axial force. The placement groove 302 serves as a prefabrication assembly interface to ensure accurate positioning of the reinforcing rib 301. Its cavity structure also reduces the accumulation of hydration heat in the concrete. A bending reinforcement part is provided at the apex of the L-shape to avoid brittle failure caused by stress concentration.
[0032] like Figure 3 As shown, the anti-collision component 4 includes an anti-collision plate 401 and an anti-collision block 402. The anti-collision plate 401 is disposed on one side of the second concrete layer 204, and the anti-collision block 402 is disposed on one side of the anti-collision plate 401. The graded anti-collision system adopts a stiffness gradient design. The anti-collision plate 401 is made of low yield strength steel and absorbs the initial collision kinetic energy through plastic deformation. The anti-collision block 402 has a built-in closed-cell foam aluminum core material and uses the closed-cell structure to crush and achieve secondary energy dissipation. The two form a two-stage attenuation of impact force through different failure modes.
[0033] like Figure 5As shown, a drainage groove 5 is provided on the top of the second concrete layer 204. The edges of the drainage groove 5 are rounded 6. The drainage groove 5 is located on the outer side of the second concrete layer 204. The drainage system adopts a fluid dynamics optimized design; the rounded edges 6 eliminate turbulence generation, improving drainage efficiency by more than 30%; the bottom of the groove is set with a 2% longitudinal slope, combined with a superhydrophobic coating treatment on the surface, to achieve a self-cleaning effect with a water droplet contact angle >150°. The outer position avoids the main stress zone, and the groove depth is controlled to 2 / 3 of the thickness of the concrete protective layer, balancing drainage function and structural integrity.
[0034] like Figure 1 As shown, a protective steel plate 7 is provided on the outer side of the first concrete layer 203. The protective steel plate 7 is located on top of the second concrete layer 204. The top view shape of the protective steel plate 7 is L-shaped. Four protective steel plates 7 are respectively provided on the outer side of the first concrete layer 203. The protective steel plates 7 adopt a form-position matching protection system. The L-shape forms a two-way constraint edge, and a high-strength chemical anchor is pre-embedded at the apex of the L-shape. A shear key array is provided on the inner surface of the steel plate to form a composite shear interface with the concrete. The four-way arrangement constitutes a continuous closed hoop effect, which transforms the local impact load into a circumferential stress distribution.
[0035] like Figure 2 As shown, the outer side of the second concrete layer 204 is provided with anti-slip texture 8. The anti-slip texture 8 is rhomboid in shape, and the surface texture is optimized by contact mechanics, which has both anti-slip and water-guiding functions. The geometric accuracy is ensured by CNC grooving process, and the edge chamfering treatment avoids stress concentration.
[0036] like Figure 5 As shown, a buffer pressure bar 9 is bolted between the crash barrier 401 and the second concrete layer 204, which can buffer the kinetic energy between the crash barrier 401 and the second concrete layer 204.
[0037] In summary, when using this stable large-volume concrete pier structure: the structure adopts a multi-level collaborative working mechanism, with the inner layer of carbon fiber cloth 201 constraining the deformation of the matrix, the middle layer of elastic damping adhesive absorbing vibration energy, and the outer double-layer concrete forming a gradient strength system: the main load-bearing layer disperses the load, the high-grade protective layer enhances durability, and the temperature gradient inhibits crack propagation; the L-shaped reinforcing ribs 301 obliquely span the concrete joint surface to form a spatial truss, converting bending moment into axial force, and their prefabricated interface setting reduces hydration heat, while the bending reinforcement eliminates stress concentration; The anti-collision system combines low-yield steel plates with closed-cell aluminum foam cores to achieve dual-stage energy dissipation through plastic deformation and cell crushing, while the inclined design guides the collision load. The drainage system uses streamlined channels and a superhydrophobic coating. The protective steel plates form a composite shear interface through a four-way shear key array and chemical anchors. The diamond-shaped surface texture (3-5mm protrusions) with a 45° orientation achieves anisotropic friction and water conduction, while the buffer pressure bar 9 works together to absorb the remaining kinetic energy. Each subsystem achieves energy dissipation in stages and stress transmission through stiffness gradient and geometric optimization.
[0038] All the devices selected in this application are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0039] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0041] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A stable structure of mass concrete pier characterized by, Include: The base (1), the outer side of the base (1) is provided with a stabilizing assembly (2), the outer side of the stabilizing assembly (2) is provided with a reinforcing assembly (3), the outer side of the reinforcing assembly (3) is provided with an anti-collision assembly (4); The stabilizing assembly (2) comprises carbon fiber cloth (201), elastic damping adhesive layer (202), first concrete layer (203) and second concrete layer (204), the carbon fiber cloth (201) is arranged on the outer side of the base (1), the elastic damping adhesive layer (202) is arranged on the outer side of the carbon fiber cloth (201), the first concrete layer (203) is arranged on the outer side of the elastic damping adhesive layer (202), and the second concrete layer (204) is arranged on the outer side of the first concrete layer (203).
2. A stable mass concrete pier according to claim 1, wherein The reinforcing assembly (3) comprises reinforcing ribs (301) and placing grooves (302), the two reinforcing ribs (301) are arranged on the top of the first concrete layer (203) and the second concrete layer (204), and the side of the reinforcing rib (301) is L-shaped.
3. A stable mass concrete pier according to claim 2, wherein The anti-collision assembly (4) comprises an anti-collision plate (401) and an anti-collision block (402), the anti-collision plate (401) is arranged on one side of the second concrete layer (204), and the anti-collision block (402) is arranged on one side of the anti-collision plate (401).
4. A stable mass concrete pier according to claim 3, wherein The top of the second concrete layer (204) is provided with a drainage groove (5), the edge of the drainage groove (5) is a fillet (6), and the drainage groove (5) is located on the outer side of the second concrete layer (204).
5. A stable mass concrete pier according to claim 4, wherein The outer side of the first concrete layer (203) is provided with a protective steel plate (7), the protective steel plate (7) is located on the top of the second concrete layer (204), the top view shape of the protective steel plate (7) is L-shaped, and four protective steel plates (7) are arranged on the outer side of the first concrete layer (203).
6. A stable mass concrete pier according to claim 5, wherein The outer side of the second concrete layer (204) is provided with anti-skid lines (8), and the anti-skid lines (8) are rhombic.
7. A stable mass concrete pier according to claim 3, wherein The anti-collision plate (401) and the second concrete layer (204) are connected with a buffer hydraulic rod (9).