CN210916988U - High-performance anti-seismic pier structure system with replaceable plastic hinges - Google Patents
High-performance anti-seismic pier structure system with replaceable plastic hinges Download PDFInfo
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- CN210916988U CN210916988U CN201921413090.1U CN201921413090U CN210916988U CN 210916988 U CN210916988 U CN 210916988U CN 201921413090 U CN201921413090 U CN 201921413090U CN 210916988 U CN210916988 U CN 210916988U
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Abstract
The utility model discloses a high performance antidetonation pier structure system with removable plasticity hinge belongs to the bridge engineering field, including cushion cap, removable plasticity hinge festival section, reinforced concrete pier festival section etc.. Embedding anchor bars and connecting sleeves in the bearing platform; the replaceable plastic hinge section comprises a PVC pipe, an SMA rib, a high-strength steel bar, a stirrup, high-ductility concrete, a lower connecting plate, an upper connecting plate and the like; the reinforced concrete pier segment comprises longitudinal bars, stirrups, common concrete, a bottom connecting plate and the like. The bearing platform is connected with the lower connecting plate of the replaceable plastic hinge segment through a high-strength bolt, and the upper connecting plate of the replaceable plastic hinge segment is connected with the bottom connecting plate of the reinforced concrete pier segment through a high-strength bolt. The utility model discloses have better bending stiffness, bearing capacity and power consumption ability under normal service condition and in the earthquake. The replaceable plastic hinge segment can be conveniently replaced after an earthquake and is easy to repair.
Description
Technical Field
The utility model relates to a bridge engineering field, concretely relates to high performance antidetonation pier structure system with removable plasticity hinge.
Background
China is a country with multiple earthquakes, and is between the Pacific earthquake zone and the Eurasia earthquake zone of the Earth. The bridge is used as an important component of life line engineering, once the bridge is damaged by an earthquake, casualties and economic losses are serious, and the repair difficulty is high. In addition, the damage of the bridge can also cause traffic interruption, which affects the development of disaster relief work after earthquake, so that rescue workers cannot arrive in time, and disaster relief materials cannot be delivered in time, thereby aggravating the degree of secondary disaster of earthquake. Therefore, the seismic performance of the bridge is of great concern.
At present, a bridge pier structure based on a ductile earthquake-resistant design has large bending moment of a potential plastic hinge area under the action of an earthquake, and is often damaged. Once the plastic hinge area is seriously damaged, the bridge pier is greatly deviated and difficult to repair, and the problem of reconstruction is faced. It can be seen that, the current bridge pier earthquake-resistant structure system based on ductility has three problems: firstly, the deformation capacity of the plastic hinge area of the conventional pier structure is insufficient, the plastic hinge area is often seriously damaged after the earthquake, and the plastic hinge carrying capacity is reduced due to the damage and the damage of concrete; secondly, after the plastic hinge area is seriously damaged, larger residual displacement is caused, and the plastic hinge area is difficult to repair; thirdly, the pier is difficult to repair after the earthquake, the plastic hinge area can not be replaced, the elasticity is always kept outside the plastic hinge area, and the economic loss is increased due to the total reconstruction.
A novel bridge structure system based on the function of recovering after earthquake or the function of rapidly recovering after earthquake is the development trend of earthquake resistance of future engineering. The plastic hinge area of the pier needs to maintain larger bearing capacity and larger deformation capacity, and simultaneously needs smaller residual displacement after earthquake, can be repaired and is easy to replace after local damage. The bridge structure new system capable of recovering the function is more beneficial to realizing the high performance, controllable damage and repairability of the bridge structure in the strong earthquake area.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve pier plasticity hinge district shock resistance not enough, restore the problem of difficulty after the shake, provide a high performance antidetonation pier structure system with removable plasticity hinge.
In order to realize the purpose, the utility model discloses a technical scheme be:
a high-performance anti-seismic pier structural system with replaceable plastic hinges comprises a bearing platform, replaceable plastic hinge sections, reinforced concrete pier sections and the like. Embedding anchor bars and connecting sleeves in the bearing platform; the replaceable plastic hinge section comprises a PVC pipe, an SMA rib, a high-strength steel bar, a stirrup, high-ductility concrete, a lower connecting plate, an upper connecting plate and the like; the reinforced concrete pier segment comprises longitudinal bars, stirrups, common concrete, a bottom connecting plate and the like.
The bearing platform is provided with the replaceable plastic hinge section, the replaceable plastic hinge section is provided with the reinforced concrete pier section, the bearing platform is connected with the lower connecting plate of the replaceable plastic hinge section through the high-strength bolt, and the upper connecting plate of the replaceable plastic hinge section is connected with the bottom connecting plate of the reinforced concrete pier section through the high-strength bolt.
The anchor bars and the connecting sleeves are embedded in the bearing platform, and the connecting sleeves are used for connecting the high-strength bolts and the anchor bars.
The replaceable plastic hinge section is filled with high-ductility concrete, the PVC pipe is embedded inside, the SMA ribs and the high-strength steel bars penetrate through the pipe, and the SMA ribs and the high-strength steel bars can be alternately and symmetrically arranged.
According to the high-performance anti-seismic pier structural system with the replaceable plastic hinges, the lower ends of the reinforced concrete pier segments are provided with the bottom connecting plates so as to be connected with the replaceable plastic hinge segments.
The high-performance anti-seismic pier structure system with the replaceable plastic hinge is characterized in that the SMA rib, the high-strength steel bar threaded hole and the bolt hole connected with the bearing platform are reserved in the lower connecting plate.
The high-performance anti-seismic pier structure system with the replaceable plastic hinge is characterized in that the SMA rib, the high-strength steel bar threaded hole and the bolt hole connected with the bottom connecting plate are reserved in the upper connecting plate.
The utility model provides an foretell high performance antidetonation pier structural system with removable plasticity hinge, the bottom connecting plate reserves vertical muscle screw hole and the bolt hole of being connected with the upper junction plate.
According to the high-performance anti-seismic pier structural system with the replaceable plastic hinges, upsetting is carried out on two ends of the SMA rib and the high-strength steel bar, and threads are arranged so as to be connected with the reserved threaded holes of the lower connecting plate and the reserved threaded holes of the upper connecting plate.
According to the high-performance anti-seismic pier structural system with the replaceable plastic hinge, the lower end of the longitudinal bar is upset and provided with threads so as to be connected with the steel bar threaded hole of the bottom connecting plate.
The top end of the anchor bar is thickened and provided with threads so as to be in matched connection with the threads of the connecting sleeve pre-embedded in the bearing platform.
The utility model has the advantages of it is following:
1. the utility model discloses a removable plasticity hinge festival section adopts high ductility concrete and SMA muscle and high-strength steel bar, and the SMA muscle has the super elastic capacity, can provide good from reset ability and certain power consumption ability, and high ductility concrete has good ductility performance, can effectively reduce plasticity hinge district concrete fracture, avoids plasticity hinge district concrete to take place seriously broken, guarantees sufficient bearing capacity and good power consumption ability, consequently compares with prior art, the utility model provides a high performance antidetonation pier structural system with removable plasticity hinge has better bending stiffness, bearing capacity and power consumption ability under the normal use condition with in the earthquake.
2. The utility model discloses a removable plasticity hinge festival section is connected through high strength bolt and cushion cap and reinforced concrete pier festival section, can conveniently change after the shake, easily restores, in time makes the bridge resume to lead to the car, saves out the valuable time for the rescue after the calamity.
Drawings
Fig. 1 is a structural system structure schematic diagram of a high-performance earthquake-proof pier with replaceable plastic hinges.
Fig. 2 is a schematic view of a replaceable plastic hinge joint section of a high-performance anti-seismic pier structural system with a replaceable plastic hinge.
Fig. 3 is a sectional view a-a of fig. 1.
Fig. 4 is a schematic view of a tie-up plate of a high-performance seismic pier structure with replaceable plastic hinges.
Fig. 5 is a schematic view of a lower connecting plate of a high-performance earthquake-resistant pier structural system with replaceable plastic hinges.
Fig. 6 is a schematic view of a bottom connection plate of a high-performance earthquake-resistant pier structural system with replaceable plastic hinges.
Fig. 7 is a schematic view of an anchor bar of a high-performance anti-seismic pier structural system with a replaceable plastic hinge.
Fig. 8 is a schematic view of a high-performance seismic pier structural system connecting sleeve with replaceable plastic hinges.
Fig. 9 is a schematic view of SMA bars and high-strength bars of a high-performance anti-seismic pier structural system with replaceable plastic hinges.
Fig. 10 is a schematic view of longitudinal bars of a high-performance earthquake-resistant pier structural system with replaceable plastic hinges.
Fig. 11 is a schematic view of an embodiment of a high-performance earthquake-resistant pier structural system with replaceable plastic hinges.
Fig. 12 is a schematic view of a second embodiment of a high-performance earthquake-resistant pier structural system with replaceable plastic hinges.
Fig. 13 is a third schematic view of an embodiment of a high-performance earthquake-resistant pier structural system with replaceable plastic hinges.
In the figure: 1-a bearing platform; 1-1-anchor bar; 1-1-1-anchor thread; 1-2-connecting sleeve; 1-2-1 connecting sleeve threads; 1-3-first plain concrete; 2-replaceable plastic hinge segments; 2-1-PVC pipe; 2-2-SMA bar and high strength steel bar; 2-2-1-SMA rib and high-strength reinforcing steel bar thread; 2-3-a first stirrup; 2-4-high ductility concrete; 2-5-lower connecting plate; 2-5-1-a first SMA rib and a high-strength steel bar threaded hole; 2-5-2-first bolt hole; 2-6-upper connecting plate; 2-6-1-a second SMA rib and a high-strength steel bar threaded hole; 2-6-2-second bolt hole; 2-7-a first high-strength bolt; 3-reinforced concrete pier segment; 3-1-longitudinal ribs; 3-1-1-longitudinal rib thread; 3-2-a second stirrup; 3-3-second common concrete; 3-4-a bottom connection plate; 3-4-1-longitudinal rib threaded holes; 3-4-2-a third bolt hole 3-5-a second high-strength bolt; 3-6-screw cap; 4-a capping beam; and 5, tying a beam.
Detailed Description
The following description of the embodiments of the present invention with a high performance anti-seismic pier structure system with replaceable plastic hinges is provided with the following drawings:
as shown in fig. 1-9, the utility model provides a high performance antidetonation pier structural system with removable plasticity hinge mainly includes cushion cap 1, removable plasticity hinge festival section 2, reinforced concrete pier festival section 3 etc.. Anchor bars 1-1 and connecting sleeves 1-2 are pre-embedded in the bearing platform 1; the replaceable plastic hinge section 2 comprises a PVC pipe 2-1, SMA bars, high-strength steel bars 2-2, first stirrups 2-3, high-ductility concrete 2-4, lower connecting plates 2-5, upper connecting plates 2-6 and the like; the reinforced concrete pier segment 3 comprises longitudinal bars 3-1, second stirrups 3-2, second common concrete 3-3, bottom connecting plates 3-4 and the like.
The bearing platform 1 is provided with a replaceable plastic hinge section 2, the replaceable plastic hinge section 2 is provided with a reinforced concrete pier section 3, the bearing platform 1 is connected with a lower connecting plate 2-5 of the replaceable plastic hinge section through a first high-strength bolt 2-7, and an upper connecting plate 2-6 of the replaceable plastic hinge section is connected with a bottom connecting plate 3-4 of the reinforced concrete pier section through a first high-strength bolt 3-5.
The anchor bars 1-1 and the connecting sleeves 1-2 are embedded in the bearing platform 1, and the connecting sleeves 1-2 are used for connecting the first high-strength bolts 2-7 and the anchor bars 1-1.
The replaceable plastic hinge section 2 is filled with high-ductility concrete 2-4, a PVC pipe 2-1 is embedded inside the replaceable plastic hinge section, SMA ribs and high-strength steel bars 2-2 penetrate through the PVC pipe 2-1, and the SMA ribs and the high-strength steel bars 2-2 can be alternately and symmetrically arranged.
And the lower end of the reinforced concrete pier segment 3 is provided with a bottom connecting plate 3-4 so as to be connected with the replaceable plastic hinge segment 2.
And a first SMA rib, a high-strength steel bar threaded hole 2-5-1 and a first bolt hole 2-5-2 connected with the bearing platform 1 are reserved in the lower connecting plate 2-5.
And a second SMA rib, a high-strength steel bar threaded hole 2-6-1 and a second bolt hole 2-6-2 connected with a connecting plate 3-4 at the bottom of the reinforced concrete pier segment are reserved in the upper connecting plate 2-6.
And a longitudinal rib threaded hole 3-4-1 and a third bolt hole 3-4-2 connected with the upper connecting plate 2-6 are reserved in the bottom connecting plate 3-4.
Two ends of the SMA rib and the high-strength steel bar 2-2 are upset and provided with threads 2-2-1 so as to be connected with a first SMA rib and high-strength steel bar threaded hole 2-5-1 of the lower connecting plate 2-5 and a second SMA rib and high-strength steel bar threaded hole 2-6-1 of the upper connecting plate 2-6.
The lower end of the longitudinal rib 3-1 is upset and provided with a thread 3-1-1 so as to be connected with a threaded hole 3-4-1 of the longitudinal rib of the bottom connecting plate 3-4.
The top end of the anchor bar 1-1 is thickened and provided with threads 1-1-1 so as to be connected with the threads 1-2-1 of the connecting sleeve 1-2 pre-embedded in the bearing platform 1 in a matching manner.
The utility model discloses several kinds of embodiment in the engineering:
as shown in fig. 11, a replaceable plastic hinge is arranged in a single-column pier structure, a replaceable plastic hinge section 2 is arranged on a bearing platform 1, a reinforced concrete pier section 3 is arranged on the replaceable plastic hinge section 2, a bent cap 4 is arranged on the reinforced concrete pier section 3, and the replaceable plastic hinge section 2 has good bending rigidity, bearing capacity and energy dissipation capacity.
As shown in fig. 12, a replaceable plastic hinge is arranged in a double-column pier structure, a replaceable plastic hinge section 2 is arranged on a bearing platform 1, a reinforced concrete pier section 3 is arranged on the replaceable plastic hinge section 2, a replaceable plastic hinge section 2 is arranged on the reinforced concrete pier section 3, a cover beam 4 is arranged on the replaceable plastic hinge section 2, the replaceable plastic hinge sections 2 are arranged at the upper end and the lower end of the pier, the self-resetting capability can be better provided to reduce the residual displacement and the plastic hinge angle of the pier, and the damage of an earthquake to the pier is effectively reduced.
As shown in fig. 13, a replaceable plastic hinge is arranged in the pier structure provided with the tie beam, a replaceable plastic hinge segment 2 is arranged on the bearing platform 1, a reinforced concrete pier segment 3 is arranged on the replaceable plastic hinge segment 2, a replaceable plastic hinge segment 2 is arranged on the reinforced concrete pier segment 3, a capping beam 4 is arranged on the replaceable plastic hinge segment 2, the tie beam 5 is arranged between the reinforced concrete pier segments 3, and the replaceable plastic hinge segment 2 is arranged at two ends of the tie beam 5 and connected with the reinforced concrete pier segment 3. The structural system has enough lateral bearing capacity and better self-resetting capacity in normal use and earthquake, and after strong earthquake, other parts except the plastic hinge area keep elasticity, and the plastic hinge area can be replaced after being damaged, so that the structural system has better economical efficiency.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. The utility model discloses an arrange the form and use quantity also not be limited to above embodiment, can optimize the selection according to the engineering reality, do not break away from everywhere the utility model discloses a technical scheme's content, the foundation the utility model discloses a technical principle is all still to any modification, the equivalent change and the decoration that above embodiment goes on the technical scheme's within range.
Claims (8)
1. The utility model provides a high performance antidetonation pier structure system with removable plasticity hinge which characterized in that: the pier comprises a bearing platform (1), a replaceable plastic hinge segment (2) and a reinforced concrete pier segment (3);
the bearing platform (1) is provided with a replaceable plastic hinge segment (2), and the replaceable plastic hinge segment (2) is provided with a reinforced concrete pier segment (3).
2. A high performance seismic pier structural system with replaceable plastic hinges as claimed in claim 1, wherein: anchor bars (1-1) and connecting sleeves (1-2) are embedded in the bearing platform (1); the replaceable plastic hinge section (2) comprises a PVC pipe (2-1), an SMA rib and a high-strength steel bar (2-2), a first stirrup (2-3), high-ductility concrete (2-4), a lower connecting plate (2-5) and an upper connecting plate (2-6); the reinforced concrete pier segment (3) comprises longitudinal bars (3-1), second stirrups (3-2), common concrete and a bottom connecting plate (3-4); the bearing platform (1) is connected with a lower connecting plate (2-5) of the replaceable plastic hinge section (2) through a first high-strength bolt (2-7); the replaceable plastic hinge segment upper connecting plate (2-6) is connected with a reinforced concrete pier segment (3) bottom connecting plate (3-4) through a second high-strength bolt (3-5);
an anchor bar (1-1) and a connecting sleeve (1-2) are embedded in the bearing platform (1), and the connecting sleeve (1-2) is used for connecting a first high-strength bolt (2-7) and the anchor bar (1-1);
the replaceable plastic hinge section (2) is filled with high-ductility concrete (2-4), a PVC pipe (2-1) is embedded inside the replaceable plastic hinge section, SMA ribs and high-strength steel bars (2-2) penetrate through the PVC pipe (2-1), and the SMA ribs and the high-strength steel bars (2-2) are arranged alternately and symmetrically;
the lower end of the reinforced concrete pier segment (3) is provided with a bottom connecting plate (3-4) so as to be connected with the replaceable plastic hinge segment (2).
3. A high performance seismic pier structural system with replaceable plastic hinges as claimed in claim 2, wherein: and a first SMA rib and high-strength steel bar threaded hole (2-5-1) and a first bolt hole (2-5-2) connected with the bearing platform (1) are reserved in the lower connecting plate (2-5).
4. A high performance seismic pier structural system with replaceable plastic hinges as claimed in claim 2, wherein: and a second SMA rib and high-strength steel bar threaded hole (2-6-1) and a second bolt hole (2-6-2) connected with the bottom connecting plate (3-4) are reserved in the upper connecting plate (2-6).
5. A high performance seismic pier structural system with replaceable plastic hinges as claimed in claim 2, wherein: and a longitudinal rib threaded hole (3-4-1) and a third bolt hole (3-4-2) connected with the upper connecting plate (2-6) are reserved in the bottom connecting plate (3-4).
6. A high performance seismic pier structural system with replaceable plastic hinges as claimed in claim 2, wherein: the two ends of the SMA rib and the high-strength steel bar (2-2) are upset and provided with threads (2-2-1) so as to be connected with a first SMA rib and high-strength steel bar threaded hole (2-5-1) of the lower connecting plate (2-5) and a second SMA rib and high-strength steel bar threaded hole (2-6-1) of the upper connecting plate (2-6).
7. A high performance seismic pier structural system with replaceable plastic hinges as claimed in claim 2, wherein: the lower end of the longitudinal bar (3-1) is upset and provided with a thread (3-1-1) so as to be connected with a longitudinal bar threaded hole (3-4-1) of the bottom connecting plate (3-4).
8. A high performance seismic pier structural system with replaceable plastic hinges as claimed in claim 2, wherein: the top end of the anchor bar (1-1) is upset and provided with threads (1-1-1) so as to be matched and connected with the threads (1-2-1) of the connecting sleeve (1-2) pre-buried in the bearing platform (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921413090.1U CN210916988U (en) | 2019-08-28 | 2019-08-28 | High-performance anti-seismic pier structure system with replaceable plastic hinges |
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| CN201921413090.1U CN210916988U (en) | 2019-08-28 | 2019-08-28 | High-performance anti-seismic pier structure system with replaceable plastic hinges |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468693A (en) * | 2019-08-28 | 2019-11-19 | 北京工业大学 | A kind of high-performance anti-seismic Bridge Pier Structure System with replaceable plastic hinge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468693A (en) * | 2019-08-28 | 2019-11-19 | 北京工业大学 | A kind of high-performance anti-seismic Bridge Pier Structure System with replaceable plastic hinge |
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