CN112030725B - Self-resetting bridge pier column structure system with built-in grading energy consumption device and construction method - Google Patents
Self-resetting bridge pier column structure system with built-in grading energy consumption device and construction method Download PDFInfo
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- CN112030725B CN112030725B CN202010846165.6A CN202010846165A CN112030725B CN 112030725 B CN112030725 B CN 112030725B CN 202010846165 A CN202010846165 A CN 202010846165A CN 112030725 B CN112030725 B CN 112030725B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
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Abstract
The invention discloses a self-resetting bridge pier column structure system with a built-in grading energy consumption device and a construction method, wherein the self-resetting bridge pier column structure system comprises: the bridge pier column is wrapped with bridge pier embedded parts around and borne by a bridge abutment, and the bridge abutment and the bridge pier column are connected through unbonded prestressed steel bars; the graded energy dissipation device is embedded in the outer wall surface of the embedded part of the pier and is detachably connected with the pier column and the abutment; the graded energy dissipation device comprises a first energy dissipation plate and a second energy dissipation plate, a plurality of protruding portions are arranged on at least one side face of the first energy dissipation plate, groove portions corresponding to the protruding portions are arranged on the second energy dissipation plate, and the first energy dissipation plate is embedded in the outer wall face of the pier embedded part; the second energy dissipation plate is arranged on the outer side of the first energy dissipation plate and detachably connected with the pier embedded part; and grouting a gap between the first energy dissipation plate and the second energy dissipation plate to form a concrete energy dissipation part. The method reduces the repair time of the self-resetting bridge pier column structure system after the earthquake, reduces the repair cost and greatly enhances the durability of the self-resetting bridge pier column structure system.
Description
Technical Field
The invention belongs to the field of bridge engineering, and particularly relates to a self-resetting bridge pier column structure system with a built-in grading energy consumption device and a construction method.
Background
A number of major earthquakes occurring in recent years, such as the north ridge earthquake, the sakashen earthquake, and the wenchuan earthquake in 2008, have caused great damage to bridges in earthquake zones. The bridge is used as a key link of a traffic hub lifeline, plays an important role in transporting rescue materials and rescuing lives in earthquake relief, and has great significance in researching a novel earthquake-resistant system of the bridge. Severe structural failure often results in bridges being repaired for use after several months, so failure of traffic lifeline bridges, in addition to direct infrastructure loss, indirectly results in immeasurable socio-economic losses. Therefore, people put forward new requirements on the anti-seismic design concept and the structural form of the pier, and researches show that the residual deformation can be used as an important and effective earthquake damage index and a key index for resisting aftershock. Admittedly, the ductile design can prevent the bridge from collapsing in strong earthquake, but the plastic deformation capability thereof just causes the irreparability of the structural damage, and the ductile bridge pier can not be used continuously because the residual deformation after the earthquake exceeds the limit value. Therefore, a novel self-resetting bridge pier column structural system which effectively combines the elastic self-resetting capability and the plastic energy consumption capability needs to be designed.
Disclosure of Invention
The invention provides a self-resetting bridge pier column structure system with a built-in grading energy consumption device and a construction method thereof, aiming at solving the technical problems in the background art, the self-resetting bridge pier column structure system effectively combines the elastic self-resetting capability and the plastic energy consumption capability, can provide enough compressive strength and energy dissipation effect in strong earthquake, can replace the energy consumption device in time after being damaged, and greatly reduces the maintenance time and the maintenance cost.
The technical scheme of the invention is as follows:
a self-resetting bridge pier column structure system with built-in grading energy consumption devices comprises: the pier column is wrapped with pier embedded parts around; the abutment is arranged below the bridge pier and used for bearing the bridge pier column, and the abutment and the bridge pier column are connected through unbonded prestressed steel bars with an elastic reset function; the graded energy dissipation device is embedded in the outer wall surface of the pier embedded part and is detachably connected with the pier column and the abutment; the graded energy dissipation device comprises a first energy dissipation plate and a second energy dissipation plate, a plurality of protruding portions are arranged on at least one side face of the first energy dissipation plate, groove portions corresponding to the protruding portions are arranged on the second energy dissipation plate, and the first energy dissipation plate is embedded in the outer wall face of the pier embedded part and detachably connected with the abutment; the second energy dissipation plate is arranged on the outer side of the first energy dissipation plate and detachably connected with the pier embedded part, and the protruding part is embedded in the groove part; and gaps among the first energy dissipation plate, the second energy dissipation plate and the pier stud are grouted to form a concrete energy dissipation part.
Preferably, the second energy consumption plate is provided with a plurality of grouting holes.
Further preferably, a plurality of the grading energy consumption devices are arranged and are uniformly distributed along the circumferential direction of the pier stud.
Preferably, a notch for embedding the graded energy dissipation device is reserved in the outer wall surface of the pier embedded part 2.
Further preferably, the abutment is composed of an upper steel plate, a lower steel plate and a connecting steel plate arranged between the upper steel plate and the lower steel plate, and the abutment column is arranged on the upper steel plate.
Further preferably, the bottom embedded part is embedded in the bottom of the pier column, the bottom embedded part faces the abutment and protrudes to form a first limiting part, the middle part of the upper steel plate faces the lower steel plate and is concave to form a second limiting part correspondingly matched with the first limiting part, and the first limiting part is embedded in the second limiting part and used for limiting the side movement of the pier column.
Further preferably, when the pier column and the abutment are poured, a steel bar hole is reserved in the bridge column and the abutment, and the unbonded prestressed steel bars penetrate through the steel bar hole and penetrate through the pier column and the abutment.
Preferably, bolt holes are reserved in the bottom of the first energy dissipation plate and the upper end of the second energy dissipation plate, and the first energy dissipation plate and the second energy dissipation plate are detachably connected with the abutment and the pier stud through high-strength bolts respectively.
A construction method of a self-resetting bridge pier column structure system with a built-in grading energy consumption device is used for machining the self-resetting bridge pier column structure system with the built-in grading energy consumption device, and comprises the following specific steps:
s1: the pier column and the abutment are constructed in a cast-in-place or prefabricated mode; when in pouring, steel bar holes are reserved in the bridge pier columns and the bridge abutment, and the steel bar holes of the bridge abutment are strictly aligned with the steel bar holes of the bridge pier columns; a notch for installing the grading energy consumption device is reserved on the outer wall surface of the pier embedded part;
s2: the first energy dissipation plate is arranged in the gap and connected with the abutment through a high-strength bolt, the second energy dissipation plate is arranged on the outer side of the first energy dissipation plate, and the groove part is correspondingly embedded with the convex part; the second energy dissipation plate is connected with the pier embedded part through a high-strength bolt;
s3: grouting the gaps among the first energy dissipation plate, the second energy dissipation plate and the pier columns through the grouting holes of the second energy dissipation plate to form a concrete energy dissipation part;
s4: the unbonded prestressed reinforcement penetrates through the reserved reinforcement hole to be connected with the bridge pier column and the bridge abutment and is anchored on the bridge abutment, and construction of the self-resetting bridge pier column structure system is completed.
The invention provides a self-resetting bridge pier column structure system with a built-in grading energy consumption device and a construction method thereof, which have the following advantages and positive effects compared with the prior art:
according to the invention, by arranging the graded energy consumption device, the protruding part of the first energy consumption plate and the groove part of the second energy consumption plate are mutually embedded and matched, and the concrete energy consumption part is formed by grouting between the protruding part and the groove part of the second energy consumption plate; and further, the first energy consumption plate and the second energy consumption plate continue to perform plastic deformation until the protruding portions and the groove portions collide with each other, the plurality of protruding portions and the plurality of groove portions achieve graded energy consumption along the longitudinal direction of the bridge pier, and the energy in the earthquake input structure system is dissipated, so that the bridge pier and the bridge abutment are maintained in an elastic state, the bridge pier structure is effectively protected, and a good earthquake-proof effect is achieved. After the earthquake, if the graded energy consumption device is seriously deformed, the anti-contention performance of the bridge pier column structure can be recovered only by replacing a new graded energy consumption device, so that the repairing time after the earthquake is greatly reduced, the repairing cost is reduced, the durability of the bridge pier column structure system is greatly enhanced, the quick repairing performance after the earthquake is greatly improved, and the method is a breakthrough and development of the traditional pier column node system.
Drawings
The above and other features and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view of a self-resetting bridge pier column structure system with a built-in graded energy dissipation device according to the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic structural diagram of a staged energy dissipation device according to the present invention;
FIG. 4 is a schematic structural view of an abutment according to the present invention;
FIG. 5 is a schematic view of the connection between the graded energy dissipation device and the pier embedded parts and the abutment.
Description of the symbols:
1-pier stud; 2-embedded parts of piers; 3-grading energy consumption devices; 301-a first energy consumption plate; 302-a boss; 303-a second energy consumption plate; 304-groove section; 305-grouting holes; 4-abutment; 401-upper steel plate; 402-lower steel plate; 403-connecting steel plates; 404-a first limiting part; 405-a second stop; 5-unbonded prestressed reinforcement; 6-steel bar pore canal; 7-bottom embedded part; 8-longitudinal ribs.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
Referring to fig. 1 to 5, the present embodiment provides a self-resetting bridge pier stud structure system with a built-in graded energy dissipation device, including: the pier column 1 is wrapped with pier embedded parts 2 around; the abutment 4 is arranged below the bridge pier and used for bearing the bridge pier column 1, and the abutment 4 is connected with the bridge pier column 1 through unbonded prestressed reinforcement 5 with an elastic reset function; the graded energy dissipation device 3 is embedded in the outer wall surface of the embedded part of the abutment column 1 and is detachably connected with the abutment column 1 and the abutment 4; the graded energy dissipation device 3 comprises a first energy dissipation plate 301 and a second energy dissipation plate 303, a plurality of protruding portions 302 are arranged on at least one side face of the first energy dissipation plate 301, groove portions 304 corresponding to the protruding portions 302 are arranged on the second energy dissipation plate 303, and the first energy dissipation plate 301 is embedded in the outer wall face of the pier embedded part 2 and detachably connected with the abutment 4; the second energy dissipation plate 303 is arranged on the outer side of the first energy dissipation plate 301 and detachably connected with the pier embedded part 22, and the protruding portion 302 is embedded in the groove portion 304; gaps among the first energy dissipation plate 301, the second energy dissipation plate 303 and the pier columns 1 are grouted to form concrete energy dissipation parts.
According to the invention, by arranging the graded energy consumption device 3, the convex part 302 of the first energy consumption plate 301 and the concave part 304 of the second energy consumption plate 303 are mutually embedded and matched, and the concrete energy consumption part is formed by grouting between the convex part 302 and the concave part 304; further, the first energy consumption plate 301 and the second energy consumption plate 303 continue to be subjected to plastic deformation until the protruding portions 302 and the groove portions 304 collide with each other, and the plurality of protruding portions 302 and the plurality of groove portions 304 achieve graded energy consumption along the longitudinal direction of the bridge pier to dissipate energy input into a structural system, so that the bridge pier 1 and the bridge abutment 4 are maintained in an elastic state, the bridge pier structure is effectively protected, and a good anti-seismic effect is achieved. After the earthquake is over, if the graded energy consumption device 3 is seriously plastically deformed, the anti-contention performance of the bridge pier column structure can be recovered only by replacing the new graded energy consumption device 3, so that the time for repairing after the earthquake is greatly reduced, and the repairing cost is reduced.
In the embodiment, the first energy dissipation plate 301 and the second energy dissipation plate 303 are made of Q225LY type low yield steel,
in this embodiment, referring to fig. 3, preferably, a plurality of grouting holes 305 are formed in the second energy consumption plate 303, concrete paddles are poured into a gap between the first energy consumption plate 301 and the second energy consumption plate 303 through the grouting holes 305 during pouring, and a concrete energy consumption part is formed after solidification, so that energy consumption of the self-resetting bridge pier column structure system is realized by using excellent compression resistance of the concrete energy consumption part, and meanwhile, when the concrete energy consumption part is crushed, a part of vibration energy is also consumed. Of course, in other embodiments, the location of the grouting holes 305 is not limited to the above or shown in the drawings, and may be disposed on the side of the first energy dissipation plate 301 not opposite to the pier stud 1 and the second energy dissipation plate 303.
In this embodiment, referring to fig. 5, a plurality of graded energy dissipation devices 3 are preferably arranged, and the graded energy dissipation devices 3 are uniformly distributed along the circumferential direction of the pier column 1, so that balanced energy dissipation for the pier column 1 is realized from a plurality of directions, and the pier column 1 is effectively prevented from deflecting or tilting. For example, in the present embodiment, if the cross section of the abutment column 1 is rectangular, four graded energy dissipation assemblies are disposed at four corners of the rectangular abutment column 1, and certainly in other embodiments, if the cross section of the abutment column 1 is circular, the plurality of graded energy dissipation devices 3 are circumferentially disposed on the outer sidewall of the abutment column 1; of course, in other embodiments, the positions where the plurality of graded energy consumption devices 3 are arranged are not limited to the above-mentioned manner, and may not be arranged evenly in the circumferential direction.
In this embodiment, referring to fig. 5, a notch for embedding the graded energy dissipation device 3 is reserved in the outer wall surface of the pier embedded part 2, and the graded energy dissipation device 3 is convenient to mount or dismount after the pier column 1 and the abutment 4 are poured.
In the present embodiment, referring to fig. 4 and 5, the abutment 4 is composed of an upper steel plate 401 and a lower steel plate 402 with a connecting steel plate 403 disposed therebetween, and the pier stud 1 is installed on the upper steel plate 401; abutment 4 plays the effect of support, partial pressure to pier column 1, when preventing that pier column vibrations slope stretch-draw does not have bonding prestressing steel, and it is too big not to have bonding prestressing steel atress to produce too big local pressure and squash the concrete in abutment 4 at the anchor tip.
Further preferably, in this embodiment, a bottom embedded part 7 is embedded in the bottom of the pier column 1, the bottom embedded part 7 protrudes toward the abutment 4 to form a first limiting portion 404, the middle portion of the upper steel plate 401 is recessed toward the lower steel plate 402 to form a second limiting portion 405 correspondingly matched with the first limiting portion 404, and the first limiting portion 404 is embedded in the second limiting portion 405 to limit the lateral movement of the pier column 1. During the earthquake, pier column 1 produces the micro-swing to there is the tendency of side shift in 1 bottom of pier column and abutment 4 production contained angle and pier column 1 bottom, and first spacing portion 404 inlays and locates and helps restricting the side shift of pier column 1 in the spacing portion 405 of second, provides certain ductility for pier column 1, has slowed down the contact destruction of concrete column and abutment 4 at pier column lower extreme department, has improved the local bearing performance of structure.
In this embodiment, when preferred pier stud 1 and abutment 4 were pour, reserve reinforcing bar pore 6 in it, unbonded prestressed reinforcement 5 passes reinforcing bar pore 6 and runs through pier stud 1 and abutment 4 to the anchor is on the lower steel sheet 402 of abutment 4, because unbonded prestressed reinforcement 5 can realize from restoring to the throne function under elastic deformation, and effective stretch-draw and do not produce and buckle are realized to unbonded prestressed reinforcement 5 in the earthquake, thereby pier stud 1 can rely on unbonded prestressed reinforcement 5 to realize elasticity from restoring to the throne.
In this embodiment, referring to fig. 4 and 5, bolt holes are reserved at the bottom of the first energy dissipation plate 301 and at the upper end of the second energy dissipation plate 303, and the first energy dissipation plate 301 and the second energy dissipation plate 303 are detachably connected to the abutment 4 and the pier column 1 through high-strength bolts, respectively. When the first energy dissipation plate 301 and the second energy dissipation plate 303 need to be replaced and disassembled, the bolts are disassembled, new graded energy dissipation devices 3 are installed again, the bolts are anchored in the reserved bolt holes, the graded energy dissipation devices 3 can be connected with the pier stud 1 and the abutment 4 by tightening the bolts, replacement time is greatly shortened, and working efficiency is improved.
Example 2
The embodiment provides a construction method of a self-resetting bridge pier column structure system with a built-in graded energy consumption device, which is used for processing the self-resetting bridge pier column structure system with the built-in graded energy consumption device in the embodiment 1, and the specific construction steps are as follows:
s1: the pier stud 1 and the abutment 4 are constructed in a cast-in-place or prefabricated mode; during pouring, steel bar holes are reserved in the abutment column 1 and the abutment 4, and the steel bar holes of the abutment 4 are strictly aligned with the steel bar holes of the abutment column 1, so that the unbonded prestressed steel bars 5 can smoothly pass through the steel bar hole channels 6 of the abutment column 1 and the steel bar hole channels 6 of the abutment 4, and effective tensioning is realized; meanwhile, a notch for installing the graded energy consumption device 3 is reserved on the outer wall surface of the pier embedded part 2;
s2: the first energy dissipation plate 301 is arranged in the gap and connected with the abutment 4 through a high-strength bolt, the second energy dissipation plate 303 is arranged on the outer side of the first energy dissipation plate 301, and the groove part 304 is correspondingly embedded with the convex part; the second energy consumption plate 303 is connected with the pier embedded part 2 through a high-strength bolt;
s3: grouting the gaps among the first energy dissipation plate 301, the second energy dissipation plate 303 and the pier column 1 through the grouting holes 305 of the second energy dissipation plate 303 to form a concrete energy dissipation part;
s4: the unbonded prestressed reinforcement 5 penetrates through the bridge pier column 1 and the abutment 4 through the reserved reinforcement hole and is anchored on the abutment 4, and construction of the self-resetting bridge pier column structure system is completed.
Specifically, in step S1, when the pier stud 1 and the abutment 4 are prefabricated or cast in place, the pier stud is provided with corresponding longitudinal bars and stirrups according to stress; pouring the pier embedded part 2 and the pier stud 1 at the same time, and pouring concrete in the abutment 4.
In step S2, the prefabricated abutment column 1 and abutment 4 are butted, and the first energy dissipation plate 301 and the second energy dissipation plate 303 are connected to the abutment 4 and abutment column 1 by bolts, respectively, so as to initially connect and mount the abutment column 1 and abutment 4.
In step S4, the unbonded prestressed reinforcement 5 of the present invention may be made of high strength steel strand with strength grade of 320 and 1860N/mm2 and diameter of 8.6-15.2 mm; the tensioning method adopts a post-tensioning method, and special grease is coated on the surface of the prestressed reinforcement to prepare the unbonded prestressed steel strand. When the unbonded prestressed steel bar 5 is tensioned from the reserved steel bar pore 6, the initial tension of the prestressed steel bar is ensured to be moderate, so that the prestressed steel bar can not only have good self-resetting performance, but also can be always in an elastic stage without entering a plastic stage, and the reduction of rigidity or the generation of residual deformation are prevented.
The construction method of the self-resetting bridge pier column structure system with the built-in grading energy consumption device, provided by the invention, adopts cast-in-place or prefabricated part assembly, and is clear and simple and convenient to construct; and the graded energy dissipation device is detachably connected with the pier stud and the abutment, so that the assembly and disassembly are very convenient, the requirements of quick updating and repairing after earthquake are met, the durability of the pier stud structure system of the bridge and the quick repairing performance after the earthquake are ensured, and the pier stud node system is a breakthrough and development of the traditional pier stud node system.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, it is still within the scope of the present invention if they fall within the scope of the claims of the present invention and their equivalents.
Claims (9)
1. The utility model provides a built-in hierarchical power consumption device from restoring to throne bridge pier column structure system which characterized in that includes:
the pier column is wrapped with pier embedded parts around;
the abutment is arranged below the bridge pier and used for bearing the bridge pier column, and the abutment and the bridge pier column are connected through unbonded prestressed steel bars with an elastic reset function;
the graded energy dissipation device is embedded in the outer wall surface of the pier embedded part and is detachably connected with the pier column and the abutment;
the graded energy dissipation device comprises a first energy dissipation plate and a second energy dissipation plate, a plurality of protruding portions are arranged on at least one side face of the first energy dissipation plate, groove portions corresponding to the protruding portions are arranged on the second energy dissipation plate, and the first energy dissipation plate is embedded in the outer wall face of the pier embedded part and detachably connected with the abutment; the second energy dissipation plate is arranged on the outer side of the first energy dissipation plate and detachably connected with the pier embedded part, and the protruding part is embedded in the groove part; and gaps among the first energy dissipation plate, the second energy dissipation plate and the pier stud are grouted to form a concrete energy dissipation part.
2. The self-resetting bridge pier structure system with built-in graded energy dissipation devices of claim 1, wherein the second energy dissipation plate is provided with a plurality of grouting holes.
3. The self-resetting bridge pier structure system with built-in graded energy dissipation devices according to claim 1, wherein a plurality of graded energy dissipation devices are arranged, and are uniformly distributed along the circumference of the bridge pier.
4. The self-resetting bridge pier column structure system with the built-in graded energy dissipation device according to claim 1 or 3, wherein a notch for embedding the graded energy dissipation device is reserved in an outer wall surface of the pier embedded part.
5. The self-resetting bridge pier structural system with built-in graded energy dissipation devices according to claim 1, wherein the abutment is composed of an upper steel plate and a lower steel plate with a connecting steel plate disposed therebetween, and the bridge pier is mounted on the upper steel plate.
6. The self-resetting bridge pier column structure system with the built-in graded energy dissipation device according to claim 5, wherein a bottom embedded part is embedded in the bottom of the pier column, the bottom embedded part protrudes towards the abutment to form a first limiting portion, the middle of the upper steel plate is concave towards the lower steel plate to form a second limiting portion correspondingly matched with the first limiting portion, and the first limiting portion is embedded in the second limiting portion to limit the lateral movement of the pier column.
7. The self-resetting bridge pier column structure system with the built-in graded energy dissipation device according to claim 1, wherein a steel bar hole is reserved in the bridge pier column and the abutment when the bridge pier column and the abutment are poured, and the unbonded prestressed steel bars penetrate through the bridge pier column and the abutment through the steel bar hole.
8. The self-resetting bridge pier column structure system with built-in graded energy dissipation devices according to claim 1, wherein spiral holes are reserved at the bottom of the first energy dissipation plate and at the upper end of the second energy dissipation plate, and the first energy dissipation plate and the second energy dissipation plate are detachably connected with the bridge abutment and the bridge pier column through high-strength bolts respectively.
9. A construction method of a self-resetting bridge pier column structure system with a built-in graded energy consumption device, which is used for processing the self-resetting bridge pier column structure system with the built-in graded energy consumption device of any one of claims 1 to 8, and is characterized by comprising the following concrete steps:
s1: the pier column and the abutment are constructed in a cast-in-place or prefabricated mode; reserving a steel bar pore passage in the bridge pier column and the bridge abutment during pouring, wherein the steel bar pore passage of the bridge abutment is strictly aligned with the steel bar pore passage of the bridge pier column; a notch for installing the grading energy consumption device is reserved on the outer wall surface of the pier embedded part;
s2: the first energy dissipation plate is arranged in the gap and connected with the abutment through a high-strength bolt, the second energy dissipation plate is arranged on the outer side of the first energy dissipation plate, and the groove part is correspondingly embedded with the protruding part; the second energy dissipation plate is connected with the pier embedded part through a high-strength bolt;
s3: grouting the gaps among the first energy dissipation plate, the second energy dissipation plate and the pier columns through the grouting holes of the second energy dissipation plate to form a concrete energy dissipation part;
s4: the unbonded prestressed reinforcement penetrates through the bridge pier column and the abutment through the reserved reinforcement hole and is anchored on the abutment, and construction of the self-resetting bridge pier column structure system is completed.
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| CN114412259B (en) * | 2021-10-11 | 2023-06-09 | 北京建筑大学 | Graded energy dissipation self-resetting assembled pier column |
| CN114263098A (en) * | 2022-01-17 | 2022-04-01 | 郑州大学 | Mortise and tenon type self-resetting pier with half-moon-shaped energy dissipater |
| CN114232467A (en) * | 2022-02-07 | 2022-03-25 | 郑州大学 | Prefabricated assembly pier with multi-plastic section energy dissipation capacity |
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| CN102304892A (en) * | 2011-07-29 | 2012-01-04 | 清华大学 | External energy-consumption self-resetting bridge pier stud structure system and realization method thereof |
| CN103526691A (en) * | 2013-10-31 | 2014-01-22 | 中铁二院工程集团有限责任公司 | Basic shock insulation structure for pier |
| CN203769122U (en) * | 2014-03-28 | 2014-08-13 | 武汉大学 | Self-restoration constraint brickwork wall with external friction dampers |
| CN104213651A (en) * | 2014-08-13 | 2014-12-17 | 同济大学 | Shear wall corner replaceable energy dissipation component and energy dissipation structure |
| CN107489201A (en) * | 2017-08-04 | 2017-12-19 | 同济大学 | Adjustable coupling beam node energy dissipation apparatus and antidetonation coupling beam node |
| CN107905363A (en) * | 2017-11-13 | 2018-04-13 | 湖南大学 | A kind of full assembly concrete beam column connector and beam-to-column joint method based on energy consumption part and shearing-resistant member |
| CN207597244U (en) * | 2017-12-14 | 2018-07-10 | 长安大学 | A kind of energy dissipating Self-resetting bridge pier structure with replaceable foot part component |
| CN108049517A (en) * | 2018-01-11 | 2018-05-18 | 重庆大学 | A kind of external replaceable energy consuming components Self-resetting RC frame foot joints |
| CN207812686U (en) * | 2018-01-11 | 2018-09-04 | 山东大学 | Unilateral buckling-restrained formula concrete column-steel beam connecting node |
| CN110258308A (en) * | 2019-07-09 | 2019-09-20 | 长沙理工大学 | Self-resetting concrete pier with replaceable buckling-restrained energy-dissipation steel plate at bottom |
| CN110468986A (en) * | 2019-07-13 | 2019-11-19 | 河南大学 | It is a kind of to wave Self-resetting shock-absorption system and construction method for underground station center pillar |
| CN110359633A (en) * | 2019-07-29 | 2019-10-22 | 东南大学 | A kind of concrete foot joint of the replaceable energy consumption connection component containing high ductility |
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