CN217174348U - C-shaped steel-friction damper combined energy dissipation structure - Google Patents
C-shaped steel-friction damper combined energy dissipation structure Download PDFInfo
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- CN217174348U CN217174348U CN202123418257.3U CN202123418257U CN217174348U CN 217174348 U CN217174348 U CN 217174348U CN 202123418257 U CN202123418257 U CN 202123418257U CN 217174348 U CN217174348 U CN 217174348U
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Abstract
The utility model relates to a C-shaped steel-friction damper combined energy dissipation structure, which comprises a connecting base, a large C-shaped steel energy dissipation device and a friction device; the connecting base comprises a left connecting base and a right connecting base which are symmetrically arranged, and the large C-shaped steel energy dissipation device and the friction device are arranged between the left connecting base and the right connecting base; the C-shaped steel-friction damper combined energy dissipation structure is arranged at the connecting position of a pier column and a tie beam, when earthquake load is suffered, the large C-shaped steel energy dissipation device can absorb transverse load energy dissipation through deformation, and the friction device can absorb longitudinal load energy dissipation through self relative friction. The utility model discloses the area tie beam double column mound among the mainly used bridge field has realized that the tie beam can assemble, removable, can restore, has reduced the life cycle cost, becomes the brittle failure mode of the shearing destruction of tie beam and destroys for the ductility, has strengthened the anti-seismic performance of double column mound, has realized the abundant power consumption under the earthquake action.
Description
Technical Field
The utility model relates to a bridge engineering field, in particular to C shape steel-friction damper combination formula power consumption structure.
Background
With the rapid increase of economic strength in China, the demand of traffic infrastructure is increasing day by day, and the technical requirements on basic buildings such as roads, bridges and the like are higher and higher. However, the width of the member in China is large, the terrain is complex, particularly the mountain in the southwest area is surrounded, the height difference of the terrain is great, the difficulty of the traditional field construction mode is great, the construction period is long, the environment is polluted by pouring concrete in the field, and meanwhile, the quality of the concrete cannot be strictly guaranteed. The prefabrication and assembly technology ensures the quality of concrete due to the characteristics of factory prefabrication and field assembly, reduces the field environmental pollution and pouring procedures, and shortens the construction period, so the prefabrication and assembly technology is valued and developed.
China is located between the Pacific earthquake zone and the Eurasian earthquake zone, the fracture zone is widely distributed, particularly in the southwest region, the damage of earthquake action is very easily caused, and the earthquake resistance of a bridge lower structure (bridge pier) directly determines the safety performance of the whole bridge, so that the rapid prefabrication assembly is realized and the earthquake resistance of the double-column high pier in the mountainous area is ensured to become another research content. The double-column pier, especially the double-column pier with the tie beam, is usually high in height, and is divided into different sections to be assembled on site during prefabrication and assembly, and the seismic performance of the structure is determined by the seismic performance of the joint positions of the sections.
The tie beam has the functions of improving the transverse rigidity of the bridge, improving the lateral bearing capacity of the bridge pier and reducing the displacement of the pier top, and the tie beam is damaged before the bridge pier and consumes seismic energy to serve as a capacity protection component to protect the bridge pier. It is urgently needed to provide a tie beam-pier stud connection structure which can ensure the connection performance and can realize the sustainable working capability.
The existing tie beam-pier column connection is roughly divided into three types, one type is a metal damper, energy consumption is generated by utilizing the deformation of the metal damper, and corresponding connection performance is provided; the second one is a friction damper, which utilizes the friction force when the materials are contacted to provide energy consumption and connection performance, and has simple stress form, but the friction force is not easy to control when the deformation is large; the third is auxiliary bracing, namely the tie beam pier stud is directly cast in situ and connected, the anti-buckling bracing is arranged on the periphery of the tie beam pier stud, and the bracing is utilized to dissipate energy and provide anti-seismic performance. However, the support is often arranged obliquely between the connecting position of the tie beam and the pier bottom, and the required arrangement space is large.
Based on the above reasons, it is urgently needed to provide a prefabricated assembling structure for pier stud-tie beam connection, which provides sufficient bearing capacity and energy consumption capacity while satisfying the prefabricated assembly of the double-pier stud with tie beam, so as to improve the overall anti-seismic performance of the double-pier stud, and meanwhile, the double-pier stud can be quickly replaced when damaged, thereby realizing sustainable working capacity and promoting the development and perfection of the double-pier prefabricated assembly technology.
SUMMERY OF THE UTILITY MODEL
In order to effectively solve tie beam prefabrication assembly, power consumption and the removable problem of high intensity area tie beam double column mound mentioned in the above-mentioned technical background, the utility model provides a C shape steel-friction damper combination formula power consumption structure has both realized pier stud-tie beam hookup location's assembly, hookup location's the continuation power consumption and tie beam segment section's is removable, can strengthen pier stud tie beam hookup location's ductility again, realizes the continuation power consumption, can also practice thrift the construction site, reduces bridge full life cycle cost, promotes the development and the perfection of tie beam double column mound prefabrication assembly technique.
The utility model adopts the technical proposal that:
a C-shaped steel-friction damper combined energy dissipation structure comprises a connecting base, a large C-shaped steel energy dissipation device and a friction device; the connecting base comprises a left connecting base and a right connecting base, the left connecting base and the right connecting base are symmetrically arranged, and the large C-shaped steel energy dissipation device and the friction device are arranged between the left connecting base and the right connecting base; the large C-shaped steel energy dissipation device and the friction device are fixedly connected with the pier stud through the left connecting base, and the large C-shaped steel energy dissipation device and the friction device are fixedly connected with the tie beam through the right connecting base; the C-shaped steel-friction damper combined energy dissipation structure is arranged at the connecting position of a pier column and a tie beam, when earthquake load is suffered, the large C-shaped steel energy dissipation device can absorb transverse load energy dissipation through deformation, and the friction device can absorb longitudinal load energy dissipation through self relative friction.
Furthermore, the left connecting base and the right connecting base have the same structure and respectively comprise a base steel plate, a base steel plate connecting bolt, a base steel plate connecting steel bar and connecting square steel; the base steel plate is a rectangular steel plate, and a plurality of through holes are arranged on the base steel plate in a surrounding manner; the base steel plate connecting steel bars are a plurality of steel bars, the number of the steel bars is matched with the number of the through holes in the base steel plate, the base steel plate connecting steel bars are embedded in the pier columns or the tie beams, and the ends of the base steel plate connecting steel bars are exposed out of the pier columns or the tie beams; the end of the base steel plate connecting steel bar penetrates through the through hole in the base steel plate and is in threaded connection with the base steel plate connecting bolt, and one side of the base steel plate is tightly attached to the pier stud or the tie beam through the base steel plate connecting bolt; the connecting square steel is fixedly arranged in the middle of the other side of the base steel plate, and the base steel plate is connected with the friction device through the connecting square steel.
Further, the friction device comprises a left friction pretightening force steel plate, a right friction pretightening force steel plate, small C-shaped steel, a concave side friction steel plate and a convex side friction steel plate; the centers of the outer sides of the left friction pre-tightening force steel plate and the right friction pre-tightening force steel plate are respectively fixedly connected with the connecting square steel of the left connecting base and the right connecting base; the concave side friction steel plate and the convex side friction steel plate are positioned between the left friction pre-tightening force steel plate and the right friction pre-tightening force steel plate, one side of the concave side friction steel plate and one side of the convex side friction steel plate are convex-concave matching surfaces, and the other sides of the concave side friction steel plate and the convex side friction steel plate are fixedly connected with the friction pre-tightening force steel plate and the right friction pre-tightening force steel plate respectively; the pretightening force is controlled to be exerted between the left friction pretightening force steel plate and the right friction pretightening force steel plate through a plurality of small C-shaped steels; two ends of the small C-shaped steel respectively penetrate through the left friction pretightening force steel plate and the right friction pretightening force steel plate, and the small C-shaped steel anchoring nut is fixedly connected with the left friction pretightening force steel plate and the right friction pretightening force steel plate through threads.
Furthermore, the large C-shaped steel energy dissipation devices are arranged at the top and the bottom between the left connecting base and the right connecting base.
Furthermore, the large C-shaped steel energy consumption device comprises a large C-shaped steel base, large C-shaped steel, a fixing bolt and a fixing nut; the large C-shaped steel base is rectangular and strip-shaped, a plurality of slots are formed in the large C-shaped steel base, and one side of the large C-shaped steel base is fixedly connected with the base steel plate; the large C-shaped steel is arranged between two large C-shaped steel bases, and two ends of the large C-shaped steel are positioned in the slots of the large C-shaped steel bases; the fixing bolts penetrate through the large C-shaped steel base and the plurality of slots of the large C-shaped steel base and are in threaded connection with the fixing nuts; and anchor holes are formed in the two ends of the large C-shaped steel, which are positioned in the slots, and the large C-shaped steel is sleeved on the fixing bolts through the anchor holes.
Further, the opening of the large C-shaped steel faces the outer side of the C-shaped steel-friction damper combined energy dissipation structure.
The beneficial effects of the utility model are that:
1. the utility model provides a C shape steel-friction damper combination formula power consumption structure to friction device wherein, carries out the anchor by little C shape steel in order to provide the required axial force of friction, produces relative displacement and realizes the power consumption purpose by concave side friction steel sheet and convex side friction steel sheet. For the large C-shaped steel energy consumption device, when the earthquake action is large, the large C-shaped steel begins to yield, and the energy consumption purpose is achieved through the yield deformation of the large C-shaped steel. A C-shaped steel-friction damper combined energy dissipation structure achieves full dissipation of seismic energy through a C-shaped steel-friction damper combined energy dissipation mode.
2. The C-shaped steel-friction damper combined energy dissipation structure overcomes the technical difficulty that the connecting position of a pier stud tie beam with a beam-tied double-column pier is difficult to assemble, the assembly of the tie beam is realized, the full-prefabricated assembly of the beam-tied double-column pier is facilitated, under the action of an earthquake, the C-shaped steel-friction damper combined energy dissipation structure is damaged before reinforced concrete structures of pier stud sections and tie beam sections, the fuse effect of the connecting position of the pier stud tie beam is provided, and after the earthquake, the quick repair after the earthquake can be realized only by replacing the same energy dissipation structure. The C-shaped steel-friction damper combined energy dissipation structure realizes the functions of assembly, replacement and repairability of the prefabricated assembled double column piers with the tie beams, and simultaneously reduces the whole life cycle cost of the double column piers with the tie beams.
3. Because the length-to-fineness ratio of the tie beam of the cast-in-place strip tie beam double-column pier is smaller, the actual bridge earthquake damage is usually the shearing damage of the end part of the tie beam and belongs to brittle damage, the ductile damage of the connecting position of the tie beam of the pier column cannot be realized, and the integral earthquake resistance of the double-column pier is not facilitated. The C-shaped steel-friction damper combined energy dissipation structure is used for the pier stud tie beam connecting position, the damage of the C-shaped steel-friction damper combined energy dissipation structure mainly occurs to the combined energy dissipation structure position, the ductility damage is achieved, the C-shaped steel-friction damper combined energy dissipation structure is safer than the traditional cast-in-place connection, the sustainable working capacity of the pier stud tie beam connecting position is improved, and the anti-seismic performance of the pier stud tie beam connecting position is greatly enhanced.
Drawings
Fig. 1 is a schematic view of the installation of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
fig. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic view of the top surface structure of the present invention;
FIG. 5 is a schematic structural view of the connection base of the present invention;
FIG. 6 is a schematic view of the detachable structure of the connection base of the present invention;
FIG. 7 is a schematic structural view of the large C-shaped steel energy dissipation device of the present invention;
FIG. 8 is a schematic view of the split structure of the large C-shaped steel energy dissipation device of the present invention;
fig. 9 is a schematic structural view of the friction device of the present invention;
fig. 10 is a schematic view of the friction device according to the present invention;
in fig. 1-10, 1-connecting base, 2-large C-shaped steel energy dissipation device, 3-friction device, 4-left connecting base, 5-right connecting base, 6-pier stud, 7-tie beam, 8-base steel plate, 9-base steel plate connecting bolt, 10-base steel plate connecting steel bar, 11-connecting square steel, 12-left friction pretightening steel plate, 13-right friction pretightening steel plate, 14-small C-shaped steel, 15-concave side friction steel plate, 16-convex side friction steel plate, 17-small C-shaped steel anchoring nut, 18-large C-shaped steel base, 19-large C-shaped steel, 20-fixing bolt, 21-fixing nut, 22-slot, 23-anchoring hole.
Detailed Description
The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the present invention, certain specific details are set forth. However, the present invention may be fully understood by those skilled in the art for those parts not described in detail.
Furthermore, those skilled in the art will appreciate that the drawings are provided solely for the purposes of illustrating the invention, features and advantages thereof, and are not necessarily drawn to scale.
Also, unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it means "including but not limited to".
Example referring to fig. 1-10, the present invention provides a C-shaped steel-friction damper combined energy dissipation structure, which is composed of a connection base 1, a large C-shaped steel energy dissipation device 2 and a friction device 3.
As shown in fig. 1, a C-shaped steel-friction damper combined energy dissipation structure can be arranged at the end of the tie beam 7 at the connecting position of the pier stud 6 and the tie beam 7, and the connection of the energy dissipation structure and the main structure is realized through the connecting base 1. It should be noted that the end of the tie beam 7 at the connecting position of the pier stud 6 and the tie beam 7 is only the best arrangement position selected for explaining the scheme, and the tie beam can be arranged at other positions in practical engineering application.
As shown in fig. 2-4, a C-shaped steel-friction damper combined energy dissipation structure comprises a connection base 1, a large C-shaped steel energy dissipation device 2 and a friction device 3;
specifically, the connecting base 1 comprises a left connecting base 4 and a right connecting base 5, the left connecting base 4 and the right connecting base 5 are symmetrically arranged, and the large C-shaped steel energy dissipation device 2 and the friction device 3 are arranged between the left connecting base 4 and the right connecting base 5; the large C-shaped steel energy dissipation device 2 and the friction device 3 are fixedly connected with the pier stud 6 through the left connecting base 4, and the large C-shaped steel energy dissipation device 2 and the friction device 3 are fixedly connected with the tie beam 7 through the right connecting base 5; the C-shaped steel-friction damper combined energy dissipation structure is arranged at the connecting position of a pier column 6 and a tie beam 7, when earthquake load is suffered, the large C-shaped steel energy dissipation device 2 can absorb transverse load energy dissipation through deformation, and the friction device 3 can absorb longitudinal load energy dissipation through self relative friction.
The embodiment also provides a concrete structure for connecting the base 1, the large C-shaped steel energy consumption device 2 and the friction device 3:
as shown in fig. 5 to 6, the left connecting base 4 and the right connecting base 5 have the same structure, and both include a base steel plate 8, a base steel plate connecting bolt 9, a base steel plate connecting steel bar 10, and a connecting square steel 11;
specifically, the base steel plate 8 is a rectangular steel plate, and a plurality of through holes are arranged on the rectangular steel plate in a surrounding manner; the base steel plate connecting steel bars 10 are a plurality of steel bars, the base steel plate connecting steel bars 10 are high-strength steel bars, the number of the base steel plate connecting steel bars 10 is matched with that of the through holes in the base steel plate 8, the base steel plate connecting steel bars 10 are embedded in the pier column 6 or the tie beam 7, the end heads of the base steel plate connecting steel bars are exposed out of the pier column 6 or the tie beam 7, and the length of the embedded sections of the base steel plate connecting steel bars 10 meets the anchoring length requirement specified by the specification; the end of the base steel plate connecting steel bar 10 penetrates through a through hole in the base steel plate 8 and is in threaded connection with a base steel plate connecting bolt 9, the base steel plate connecting bolt 9 is a high-strength bolt, and one side of the base steel plate 8 is tightly attached to the pier stud 6 or the tie beam 7 through the base steel plate connecting bolt 9; the connecting square steel 11 is fixedly arranged in the middle of the other side of the base steel plate 8, and the base steel plate 8 is connected with the friction device 3 through the connecting square steel 11, so that the friction device 3 and the connecting base 1 are stressed cooperatively to generate the same deformation.
The connecting base 1 is arranged at the disconnection position of the tie beam 7 and is used for connecting the large C-shaped steel energy dissipation device 2 and the friction device 3. When the earthquake load acts, the connecting base 1 can be integrally disassembled and replaced, or only part of the structure can be replaced, the specific size is determined according to the size of the tie beam 7, the external dimension is consistent with the tie beam 7, and the thickness dimension is determined according to the requirement of the bending resistance bearing capacity.
As shown in fig. 7-8, the friction device 3 includes a left friction pre-tightening steel plate 12, a right friction pre-tightening steel plate 13, a small C-shaped steel 14, a concave side friction steel plate 15 and a convex side friction steel plate 16;
specifically, the centers of the outer sides of the left friction pretightening force steel plate 12 and the right friction pretightening force steel plate 13 are respectively fixedly connected with the connecting square steel 11 of the left connecting base 4 and the right connecting base 5; the concave side friction steel plate 15 and the convex side friction steel plate 16 are positioned between the left friction pretightening force steel plate 12 and the right friction pretightening force steel plate 13, one side of the concave side friction steel plate 15 and one side of the convex side friction steel plate 16 are convex-concave matching surfaces, and the other side of the concave side friction steel plate 15 and the other side of the convex side friction steel plate 16 are respectively fixedly connected with the friction pretightening force steel plate and the right friction pretightening force steel plate 13; the pre-tightening force is controlled to be exerted between the left friction pre-tightening force steel plate 12 and the right friction pre-tightening force steel plate 13 through a plurality of small C-shaped steels 14; the small C-shaped steel 14 is made of mild steel materials, two ends of the small C-shaped steel 14 penetrate through the left friction pretightening force steel plate 12 and the right friction pretightening force steel plate 13 respectively, and the small C-shaped steel anchoring nut 17 in threaded connection is fixedly connected with the left friction pretightening force steel plate 12 and the right friction pretightening force steel plate 13.
The pre-tightening force is controlled and applied through the small C-shaped steels 14, the axial pressure required by friction between the concave side friction steel plate 15 and the convex side friction steel plate 16 is provided, and the concave side friction steel plate 15 and the convex side friction steel plate 16 are always kept in a pressed state and are not separated. The purpose of the small C-shaped steel 14 being C-shaped is to allow a certain vertical deformation, avoiding direct shear damage. The friction device 3 is fixed in the middle of the connecting base 1, when the device is subjected to earthquake load, vertical relative motion is generated on two sides of the tie beam 7, the concave side friction steel plate 15 and the convex side friction steel plate 16 are driven to generate vertical relative motion, and the concave side friction steel plate 15 and the convex side friction steel plate 16 perform relative friction to absorb longitudinal load energy consumption.
As shown in fig. 9-10, the large C-shaped steel energy dissipation device 2 is disposed at the top and bottom between the left connection base 4 and the right connection base 5.
Specifically, the large C-shaped steel energy consumption device 2 comprises a large C-shaped steel base 18, large C-shaped steel 19, a fixing bolt 20 and a fixing nut 21; the large C-shaped steel base 18 is rectangular and strip-shaped, a plurality of slots 22 are formed in the large C-shaped steel base 18, and one side of the large C-shaped steel base 18 is fixedly connected with the base steel plate 8; the number of the large C-shaped steels 19 is a plurality, the large C-shaped steels 19 can be made of mild steel materials, the yield point is easily reached, the energy consumption caused by plastic deformation is increased, the large C-shaped steels 19 are arranged between the two large C-shaped steel bases 18, and the two ends of the large C-shaped steels 19 are positioned in the slots 22 of the large C-shaped steel bases 18; the fixing bolts 20 penetrate through the large C-shaped steel base 18 and the slots 22 of the large C-shaped steel base 18 and are in threaded connection with the fixing nuts 21; two ends of the large C-shaped steel 19, which are positioned in the slot 22, are provided with anchor holes 23, two ends of the large C-shaped steel 19 are sleeved on the fixing bolt 20 through the anchor holes 23, and the fixing bolt 20 is a high-strength bolt. The opening of the large C-shaped steel 19 faces the outer side of the C-shaped steel-friction damper combined energy dissipation structure.
The large C-shaped steel energy dissipation device 2 is arranged at the top and the bottom of the connecting base 1 by adopting the structure, provides main bending-resistant bearing force action, and can absorb transverse load energy dissipation through deformation when being subjected to great deformation caused by earthquake load. The specific size of the large C-shaped steel energy dissipation device 2 is determined according to the calculation result of the bending resistance bearing capacity of the section of the tie beam 7, and the bending resistance bearing capacity of the large C-shaped steel energy dissipation device 2 and the bending resistance bearing capacity of the section of the tie beam 7 are consistent.
Claims (6)
1. A C-shaped steel-friction damper combined energy dissipation structure is characterized in that: the C-shaped steel-friction damper combined energy dissipation structure comprises a connecting base, a large C-shaped steel energy dissipation device and a friction device; the connecting base comprises a left connecting base and a right connecting base, the left connecting base and the right connecting base are symmetrically arranged, and the large C-shaped steel energy dissipation device and the friction device are arranged between the left connecting base and the right connecting base; the large C-shaped steel energy dissipation device and the friction device are fixedly connected with the pier stud through the left connecting base, and the large C-shaped steel energy dissipation device and the friction device are fixedly connected with the tie beam through the right connecting base; the C-shaped steel-friction damper combined energy dissipation structure is arranged at the connecting position of a pier column and a tie beam, when earthquake load is suffered, the large C-shaped steel energy dissipation device can absorb transverse load energy dissipation through deformation, and the friction device can absorb longitudinal load energy dissipation through self relative friction.
2. The C-shaped steel-friction damper combined dissipative structure according to claim 1, wherein: the left connecting base and the right connecting base are identical in structure and respectively comprise a base steel plate, a base steel plate connecting bolt, a base steel plate connecting steel bar and connecting square steel; the base steel plate is a rectangular steel plate, and a plurality of through holes are arranged on the base steel plate in a surrounding mode; the base steel plate connecting steel bars are a plurality of steel bars, the number of the steel bars is matched with that of the through holes in the base steel plate, the base steel plate connecting steel bars are embedded in the pier columns or the tie beams, and the ends of the base steel plate connecting steel bars are exposed out of the pier columns or the tie beams; the end of the base steel plate connecting steel bar penetrates through the through hole in the base steel plate and is in threaded connection with the base steel plate connecting bolt, and one side of the base steel plate is tightly attached to the pier stud or the tie beam through the base steel plate connecting bolt; the connecting square steel is fixedly arranged in the middle of the other side of the base steel plate, and the base steel plate is connected with the friction device through the connecting square steel.
3. The C-shaped steel-friction damper combined dissipative structure according to claim 2, wherein: the friction device comprises a left friction pre-tightening force steel plate, a right friction pre-tightening force steel plate, small C-shaped steel, a concave side friction steel plate and a convex side friction steel plate; the centers of the outer sides of the left friction pre-tightening force steel plate and the right friction pre-tightening force steel plate are respectively fixedly connected with the connecting square steel of the left connecting base and the right connecting base; the concave side friction steel plate and the convex side friction steel plate are positioned between the left friction pre-tightening force steel plate and the right friction pre-tightening force steel plate, one side of the concave side friction steel plate and one side of the convex side friction steel plate are convex-concave matching surfaces, and the other sides of the concave side friction steel plate and the convex side friction steel plate are fixedly connected with the friction pre-tightening force steel plate and the right friction pre-tightening force steel plate respectively; the pretightening force is controlled to be exerted between the left friction pretightening force steel plate and the right friction pretightening force steel plate through a plurality of small C-shaped steels; two ends of the small C-shaped steel respectively penetrate through the left friction pretightening force steel plate and the right friction pretightening force steel plate, and the small C-shaped steel anchoring nut is fixedly connected with the left friction pretightening force steel plate and the right friction pretightening force steel plate through threads.
4. The C-shaped steel-friction damper combined dissipative structure according to claim 2, wherein: the large C-shaped steel energy dissipation device is arranged at the top and the bottom between the left connecting base and the right connecting base.
5. The C-shaped steel-friction damper combined dissipative structure according to claim 4, wherein: the large C-shaped steel energy dissipation device comprises a large C-shaped steel base, large C-shaped steel, a fixing bolt and a fixing nut; the large C-shaped steel base is rectangular and is provided with a plurality of slots, and one side of the large C-shaped steel base is fixedly connected with the base steel plate; the number of the large C-shaped steel is a plurality of, the large C-shaped steel is arranged between two large C-shaped steel bases, and two ends of the large C-shaped steel are positioned in the slots of the large C-shaped steel bases; the fixing bolts penetrate through the large C-shaped steel base and the plurality of slots of the large C-shaped steel base and are in threaded connection with the fixing nuts; and anchor holes are formed in the two ends of the large C-shaped steel, which are positioned in the slots, and the large C-shaped steel is sleeved on the fixing bolts through the anchor holes.
6. The C-shaped steel-friction damper combined dissipative structure according to claim 5, wherein: the opening of the large C-shaped steel faces to the outer side of the energy dissipation structure of the C-shaped steel combined type graded yield damper combined type.
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