CN211947908U - Double-column type concrete-filled steel tube pier with replaceable energy-consuming corrugated steel connecting beam - Google Patents

Abstract

The utility model relates to a take double-column type steel pipe concrete pier of removable power consumption ripple steel company roof beam, including bent cap, pier stud and cushion cap, the bent cap with the cushion cap between set up two pier studs side by side, a serial communication port, two pier studs between horizontal interval set up a plurality of removable power consumption ripple steel company roof beams, every removable power consumption ripple steel company roof beam include removable ripple power consumption section and enhancement linkage segment, ripple power consumption section include top flange, bottom flange and power consumption ripple steel web, top flange, bottom flange and power consumption ripple steel web fixed connection. The utility model is suitable for a ground seismic region, construction are convenient, can restore fast after shaking.

Description

Double-column type concrete-filled steel tube pier with replaceable energy-consuming corrugated steel connecting beam

Technical Field

The utility model relates to a bridge engineering field, concretely relates to take removable power consumption corrugated steel even beam's double column type steel pipe concrete pier and construction method thereof.

Background

China is located between the Pacific earthquake zone and the Eurasian earthquake zone, the earthquake zones are widely distributed and dispersed, and the earthquake fortification intensity of a plurality of areas is more than 7 to 8 degrees. The bridge is an important junction of traffic lifeline engineering, the construction cost is high, and once the bridge is damaged by an earthquake, the bridge is extremely difficult to repair after the earthquake. Experience and training of earthquake damage investigation and earthquake relief work of earthquake of past times show that due to the fact that bridges of traffic life line engineering in earthquake areas are damaged, disaster relief actions and recovery work after earthquake are seriously hindered, and economic loss and casualties caused by the fact cannot be measured. Therefore, the problem of ensuring the earthquake safety of the bridge structure which is an important component of the lifeline engineering is particularly important, and the guarantee of the earthquake safety of the bridge structure becomes an urgent need for the economic and social development of China.

The main principle of the existing bridge earthquake-proof design is a ductile earthquake-proof design, the rigidity, the strength and the ductility of a bridge structure are comprehensively considered, a pier is designed into a ductile member, the capability design is adopted to emphasize the safety degree difference to protect a capability protection member, the structure is ensured to react in a ductile mode under the condition of a major earthquake, and a brittle failure mode is avoided. The pier, which is a ductile member, dissipates seismic energy by elastic-plastic deformation of the plastic hinge region, reducing seismic response. But the ductility design method can not avoid the damage of the pier, especially the plastic hinge area, and generate larger lateral residual displacement, thereby bringing great difficulty to the post-earthquake repair. And most of the traditional piers are reinforced concrete piers, so that the deformation capacity is small, the anti-seismic performance is poor, the cross section and the dead weight are large, the foundation load is increased, the construction is complicated, and the construction period is long. In recent years, with the development of composite structures and the increasing demand for prefabricated and assembled high-efficiency construction, steel pipe concrete composite piers with excellent seismic performance and high construction efficiency are increasingly used in the design of large bridge engineering piers. Based on the above background, the engineering industry is in urgent need to introduce a more advanced design scheme for bridge pier column structure system.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the above-mentioned not enough that exists among the prior art, provide a two column type steel pipe concrete pier that is applicable to seismic region, construction facility, can quick prosthetic area removable power consumption corrugated steel even roof beam after shaking. In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

the utility model provides a take double-column type steel pipe concrete pier of removable power consumption ripple steel company roof beam, includes bent cap, pier stud and cushion cap, the bent cap with the cushion cap between set up two pier studs side by side, its characterized in that, two pier studs between horizontal interval set up at least one removable power consumption ripple steel company roof beam, every removable power consumption ripple steel company roof beam includes removable ripple power consumption section and reinforced connection section, ripple power consumption section include top flange, bottom flange and power consumption ripple steel web, top flange, bottom flange and power consumption ripple steel web fixed connection, link to each other through the node between removable power consumption ripple steel company roof beam and the pier stud.

Preferably, the node include end plate and connecting plate, the end plate is the I-shaped steel roof beam, set up the bolt entrance to a cave on end plate and the connecting plate respectively, fixed connection between end plate and the steel core concrete pier. The reinforced connecting sections are arranged at two ends of the corrugated energy consumption section. The steel pipe concrete pier column is characterized in that a plurality of stiffening ribs are welded on the two sides of the bottom of the steel pipe concrete pier column in a fillet mode, and the steel pipe concrete pier column is connected with the bearing platform through high-strength bolts.

The utility model discloses a substantive characteristics lie in:

the strength and thickness of the steel material selected by the reinforcing connecting section 11 are greater than those of the steel material selected by the corrugated energy consumption section 12. When an earthquake occurs, the damage and deformation of the replaceable energy-consuming corrugated steel connecting beam 2 can be mainly concentrated on the energy-consuming section, so that the integral damage and damage to the pier are reduced. After the earthquake, the replaceable energy-consumption corrugated steel connecting beam 2 is replaced, so that the pier can be quickly repaired, the time for recovering the normal use function of the pier is shortened, and the disaster relief efficiency is effectively improved.

The reinforced connecting section 11 is an I-shaped steel beam, and a bolt hole is formed in the reinforced connecting section 11. The reinforced connecting section 11 is made of I-shaped steel beams, construction is convenient, force transmission is clear and reliable, the steel beams can be directly purchased to be suitable for size, construction cost is saved, and construction efficiency is improved.

The corrugated energy dissipation section 10 comprises an upper flange 13, a lower flange 14 and an energy dissipation corrugated steel web 15, wherein the upper flange 13, the lower flange 14 and the energy dissipation corrugated steel web 15 are fixedly connected through welding. Due to the arrangement of the energy-consumption corrugated steel web plate 15, the energy-consumption corrugated steel web plate 15 has higher buckling stability, plane external rigidity and lateral rigidity, higher shear bearing capacity, plane external stability and energy consumption capacity, shear yield of the whole section of the energy-consumption corrugated steel web plate can be achieved, and the material utilization rate is high.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the double-column pier stud adopts a steel pipe concrete structure, has excellent anti-seismic performance and high construction efficiency, and is convenient for prefabrication and assembly; the double-column type steel pipe concrete pier has the advantages that at least one replaceable energy-consumption corrugated steel connecting beam is replaceably arranged between the double-column pier columns, the structural member is high in shearing resistance and bearing capacity, good in ductility, large in initial rigidity and good in out-of-plane stability, the overall energy consumption capacity of the double-column type steel pipe concrete pier can be remarkably improved, the strength and the rigidity of the double-column type pier are improved, and the seismic response and the residual displacement of the double-column type pier are reduced; when an earthquake occurs, most of earthquake energy can be absorbed by the fuse action of the replaceable energy-consumption corrugated steel coupling beam, the damage of column limbs is effectively reduced, the energy-consumption corrugated steel coupling beam is only required to be replaced after the earthquake, the main body structure of the double-column type steel pipe concrete pier does not need to be repaired, and the normal use function of the pier can be quickly recovered.

Drawings

Fig. 1 is a schematic view of the overall structure of the utility model.

Fig. 2 is a schematic cross-sectional view of a double pier.

Fig. 3 is a schematic view of a node of an energy-consuming corrugated steel connecting beam and a round steel pipe concrete pier stud.

Fig. 4 is a schematic view of a replaceable energy dissipating corrugated steel coupling beam.

Reference numerals: the steel pipe concrete pier stud 1, removable power consumption ripple steel even roof beam 2, node 3, cushion cap 4, bent cap 5, stiffening rib 6, high strength bolt 7, end plate 8, connecting plate 9, ripple power consumption section 10, strengthen the linkage segment 11, bolt 12, upper flange 13, lower flange 14, power consumption ripple steel web 15.

Detailed Description

The invention is explained in detail with reference to the drawings of the embodiments:

the double-column type concrete-filled steel tube pier with the replaceable energy dissipation corrugated steel coupling beam shown in figure 1 comprises: the energy-consumption corrugated steel connecting beam comprises a cover beam 5, pier columns 1 and a bearing platform 4, wherein two pier columns are arranged between the cover beam 5 and the bearing platform 4 in parallel, and a plurality of replaceable energy-consumption corrugated steel connecting beams 2 are arranged between the two pier columns at transverse intervals.

As shown in fig. 1, in this embodiment, the pier is a concrete filled steel tube pier 1, the concrete filled steel tube pier 1 is fixedly connected to the platform 4, a plurality of stiffening ribs 6 are fillet welded on both sides of the bottom of the concrete filled steel tube pier 1, and the concrete filled steel tube pier 1 is connected to the platform 4 by high-strength bolts 7. The inner wall of the steel pipe is provided with the stud, so that the connection between the concrete and the steel pipe wall is improved. The steel pipe concrete pier stud 1 has excellent anti-seismic performance and high construction efficiency.

In this embodiment, as shown in fig. 1-3, the replaceable energy-consuming corrugated steel coupling beam 2 is connected with two piers 1 through a node 3. The node 3 comprises an end plate 8 and a connecting plate 9, wherein the end plate 8 is an I-shaped steel beam, and bolt holes are respectively formed in the end plate 8 and the connecting plate 9. The end plate 8 and the concrete filled steel tube pier 1 are fixedly connected through welding.

As shown in fig. 4, in this embodiment, the replaceable energy-consuming corrugated steel coupling beam 2 includes a replaceable energy-consuming corrugated section 10, two ends of the replaceable energy-consuming corrugated section 10 are respectively provided with a reinforcing connecting section 11, the replaceable energy-consuming corrugated steel coupling beam 2 is fixedly connected to the two pillars 1 through the two reinforcing connecting sections 11 at the two ends, and the reinforcing connecting section 11 plays a role in connecting and reinforcing the support. The corrugated energy consumption section 10 and the reinforced connection section 11 are fixedly connected through welding, so that the construction is simple, and the force transmission is clear and reliable. The strength and thickness of the steel material selected by the reinforcing connecting section 11 are greater than those of the steel material selected by the corrugated energy consumption section 10. When an earthquake occurs, the damage and deformation of the replaceable energy-consuming corrugated steel connecting beam 2 can be mainly concentrated on the energy-consuming section, so that the integral damage and damage to the pier are reduced. After the earthquake, the replaceable energy-consumption corrugated steel connecting beam 2 is replaced, so that the pier can be quickly repaired, the time for recovering the normal use function of the pier is shortened, and the disaster relief efficiency is effectively improved.

As shown in fig. 4, in this embodiment, the reinforced connecting section 11 is an i-beam, and the reinforced connecting section 11 is provided with a bolt hole. The reinforced connecting section 11 is made of I-shaped steel beams, construction is convenient, force transmission is clear and reliable, the steel beams can be directly purchased to be suitable for size, construction cost is saved, and construction efficiency is improved.

As shown in fig. 3, in this particular embodiment, the reinforcing connecting segments 11 and the end plates 8 are connected by bolts 12 through the connecting plates 9. The bolt 12 is connected and is convenient for quick installation and change of removable power consumption corrugated steel even roof beam 2, improves the efficiency of construction, reduces this pier normal use function recovery time.

As shown in fig. 4, in this embodiment, the corrugated energy dissipation section 10 includes an upper flange 13, a lower flange 14 and an energy dissipation corrugated steel web 15, and the upper flange 13, the lower flange 14 and the energy dissipation corrugated steel web 15 are fixedly connected by welding. The energy dissipation corrugated steel web 15 has high buckling stability, plane external rigidity and lateral rigidity, high shear bearing capacity, out-plane stability and energy dissipation capacity, shear yield of the whole section of the energy dissipation corrugated steel web, and high material utilization rate.

The utility model discloses take removable power consumption corrugated steel even beam's double column type steel core concrete pier's concrete construction steps as follows:

(1) the steel pipe concrete pier stud 1 can adopt the prefabricated mode construction, and a plurality of stiffening ribs 6 of 1 bottom surface welding of steel pipe concrete pier stud are at the 1 side position welding end plate 8 of the steel pipe concrete pier stud of removable power consumption corrugated steel even roof beam 2 of design installation for connect removable power consumption corrugated steel even roof beam 2.

(2) The bearing platform 4 can be constructed in a cast-in-place or prefabricated mode. And a high-strength bolt connecting hole is reserved in the top surface of the bearing platform 4 and used for connecting and fixing the concrete filled steel tube pier column 1 and the high-strength bolt 7 of the bearing platform 4.

(3) Removable power consumption corrugated steel even roof beam 2 is installed after cushion cap 4 and double-column type steel pipe concrete pier stud construction finish, carries out bolt 12 with end plate 8 through connecting plate 9 and is connected.

Claims (4)

1. The utility model provides a take double-column type steel pipe concrete pier of removable power consumption ripple steel company roof beam, includes bent cap, pier stud and cushion cap, the bent cap with the cushion cap between set up two pier studs side by side, its characterized in that, two pier studs between horizontal interval set up at least one removable power consumption ripple steel company roof beam, every removable power consumption ripple steel company roof beam includes removable ripple power consumption section and reinforced connection section, ripple power consumption section include top flange, bottom flange and power consumption ripple steel web, top flange, bottom flange and power consumption ripple steel web fixed connection, link to each other through the node between removable power consumption ripple steel company roof beam and the pier stud.

2. The double-column type concrete-filled steel tube pier as claimed in claim 1, wherein the node comprises an end plate and a connecting plate, the end plate is an I-shaped steel beam, bolt holes are respectively formed in the end plate and the connecting plate, and the end plate is fixedly connected with the concrete-filled steel tube pier.

3. The double column type concrete-filled steel tube pier according to claim 1, wherein the reinforcing connection sections are provided at both ends of the corrugated energy dissipation section.

4. The double-column concrete-filled steel tube pier according to claim 1, wherein a plurality of stiffening ribs are fillet-welded on the two sides of the bottom of the pier column, and the pier column is connected with the bearing platform through high-strength bolts.

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