CN218116544U - Underground structure and viaduct combined construction earthquake-resistant structure - Google Patents
Underground structure and viaduct combined construction earthquake-resistant structure Download PDFInfo
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- CN218116544U CN218116544U CN202221817498.7U CN202221817498U CN218116544U CN 218116544 U CN218116544 U CN 218116544U CN 202221817498 U CN202221817498 U CN 202221817498U CN 218116544 U CN218116544 U CN 218116544U
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Abstract
The utility model discloses a combined construction earthquake-resistant structure of an underground structure and a viaduct, which belongs to the technical field of building structure shock absorption and comprises an elevated structure, an underground structure and a connecting strut, wherein one end of the connecting strut is abutted against the bottom of the elevated structure, and the other end of the connecting strut is inserted in the underground structure; and the lateral outer wall of the underground structure and the end face of the bottom, which is contacted with the soil body, are provided with first buffer layers, and the upper end face of the underground structure and the end face of the soil body are provided with waterproof layers, so that the underground structure has better shock resistance and buffer capacity while having waterproof performance. And the connecting strut connects elevated structure and underground structure as a whole for when the earthquake takes place, first buffer layer can play good absorption and dispersion to the impact load that the earthquake produced, and underground structure is to the shear failure of connection structure when reducing vibrations simultaneously, is showing the security that improves this underground structure and elevated bridge co-construction antidetonation structure, possesses better feasibility of implementation, economic nature and reliability.
Description
Technical Field
The utility model belongs to the technical field of building structure shock attenuation, concretely relates to underground structure and overpass co-construction earthquake-resistant structure.
Background
In some reconstruction areas of old urban areas, in order to relieve the situation that urban traffic is increasingly tense and save urban building space, underground structures and viaduct co-building structures are adopted by more and more cities.
The combined construction project of the underground structure and the viaduct is used as a traffic hub of a city, the upper part of the combined construction project is a bridge span structure, the lower part of the combined construction project is a frame structure, the stress and force transmission modes of the underground structure and the viaduct are obviously different, the stress mechanism of the combined structure is more complex, and the research on the anti-seismic performance of the combined construction project of the underground structure and the viaduct is less at present.
The existing underground structure and the viaduct adopt a rigid node connection mode, so that the vertical span is large, the horizontal shock resistance is weak, and the problem that the whole upper bridge collapses and the underground structure is damaged is easily caused when an earthquake occurs.
SUMMERY OF THE UTILITY MODEL
To the above defect of prior art or improve in the demand one or more, the utility model provides an underground structure and overpass build earthquake-resistant structure jointly for solve current underground structure and overpass build the unstable problem that just meets the earthquake and destroy easily of structure jointly.
In order to achieve the above object, the utility model provides an underground structure constructs earthquake-resistant structure with overpass is built jointly, it includes:
the device comprises an elevated structure arranged on the ground and an underground structure arranged in a soil body, wherein a connecting strut is vertically arranged between the elevated structure and the underground structure in a penetrating manner;
one end of the connecting strut is abutted against the bottom of the elevated structure, and the other end of the connecting strut is inserted in the underground structure;
the lateral outer wall and the end face of the bottom of the underground structure, which is contacted with the soil body, are provided with first buffer layers, and the end face of the upper part of the underground structure, which is contacted with the soil body, is provided with a waterproof layer.
As a further improvement of the present invention, the underground structure comprises a first structural plate, a second structural plate and a third structural plate which are arranged along the vertical direction at intervals;
a supporting structure plate is arranged among the first structure plate, the second structure plate and the third structure plate, the supporting structure plate vertically penetrates through the second structure plate, and the upper end and the lower end of the supporting structure plate are respectively abutted against the first structure plate and the third structure plate;
the first structural slab and the third structural slab are circumferentially and externally provided with lateral structural slabs, and the lateral structural slabs, the first structural slab and the third structural slab surround to form a passing space of an underground structure.
As a further improvement, the underground structure with be equipped with connecting reinforcement between the first buffer layer, connecting reinforcement both ends are inserted respectively and are established the underground structure with in the first buffer layer.
As the utility model discloses a further improvement, the connecting reinforcement stretches into the one end of underground structure is still overlapped and is equipped with the water-swelling seal ring, the rainwater inflation seal ring is pre-buried in the underground structure.
As a further improvement, the two ends of the connecting steel bars stretch into the underground structure and the length of the first buffer layer is 8-15 cm.
As a further improvement of the utility model, the thickness of the first buffer layer is 40-60 cm.
As a further improvement of the present invention, the connecting strut is vertically penetrated by the first structural plate and the second structural plate, and the connecting strut is abutted against the bottom of the third structural plate.
As a further improvement of the present invention, the connecting support is disposed through the gap between the first structural plate and the second structural plate to form a second buffer layer.
As a further improvement, the second buffer layer encircles the setting and is in the connecting support column periphery, and the second buffer layer with the clearance department of connecting support column is equipped with the waterstop, the waterstop both ends are inlayed respectively and are established connecting support column with in the second buffer layer.
The above-described improved technical features may be combined with each other as long as they do not conflict with each other.
Generally, through the utility model discloses above technical scheme that conceive compares with prior art, and the beneficial effect that has includes:
(1) The utility model discloses a structure is built with overpass to underground structure, mainly sets up first buffer layer and waterproof layer through the terminal surface department at underground structure and soil body contact, and wears to establish at the connecting strut the terminal surface department of underground structure sets up second buffer layer and galvanized steel sheet waterstop for the connecting strut possesses better waterproof performance and antidetonation shock-absorbing capacity with underground structure junction, utilizes the rigidity difference between the first buffer layer clearance soil body and the underground structure simultaneously, and then improves this underground structure and the earthquake resistance and the stability of overpass built-up structure jointly.
Drawings
FIG. 1 is a schematic sectional view of an earthquake-proof structure built by an underground structure and an overhead bridge according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure diagram of the lateral structural plate and the first buffer layer in the embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the connection between the connecting strut and the first structural plate according to the embodiment of the present invention;
throughout the drawings, like reference numerals designate like features, and in particular:
1. an elevated structure; 2. connecting the supporting columns; 3. a first buffer layer; 4. a waterproof layer; 5. a first structural panel; 6. a second structural panel; 7. a third structural panel; 8. a support structure plate; 9. a lateral structural panel; 10. connecting reinforcing steel bars; 11. a water stop ring expanding when meeting water; 12. a water stop; 13. a second buffer layer; 14. and (5) pile foundations.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Example (b):
referring to fig. 1 to 3, the earthquake-resistant structure built by the underground structure and the viaduct in the preferred embodiment of the present invention includes an elevated structure 1 located above the ground and an underground structure located in the soil, a connecting pillar 2 vertically penetrates between the elevated structure 1 and the underground structure, one end of the connecting pillar 2 abuts against the bottom of the elevated structure 1, and the other end thereof is inserted into the underground structure, so as to form a base body of the elevated structure 1 and the underground structure; meanwhile, the lateral outer wall and the end face where the bottom of the underground structure is in contact with the soil body are provided with first buffer layers 3, and the end face where the upper portion of the underground structure is in contact with the soil body is provided with a waterproof layer 4. This application sets up first buffer layer 3 through side direction outer wall and bottom at underground structure and soil body contact, and the portion sets up waterproof layer 4 above that, make this underground structure itself still possess better antidetonation buffer capacity when possessing waterproof performance, and overhead structure 1 is connected for whole through connecting strut 2 and underground structure itself, make the overall structure that underground structure and overhead structure 1 build the formation jointly possess the buffering shock resistance equally, when the earthquake takes place, this first buffer layer 3 can play good absorption and dispersion to the impact load that the earthquake produced, underground structure is to connection structure's shear failure when reducing vibrations simultaneously, show the security that improves this underground structure and overhead bridge build the antidetonation structure jointly, possess better enforceability, economic nature and reliability.
Further, the elevated structure 1 itself in this application is a viaduct, and the connecting pillars 2 are bridge pier structures of the viaduct. Meanwhile, the underground structure comprises a first structural plate 5, a second structural plate 6 and a third structural plate 7 which are arranged at intervals in the vertical direction; wherein, still be equipped with supporting structure board 8 between the three structural slab, this supporting structure board 8 is vertical to be set up and wear to establish on second structural slab 6 to supporting structure board 8 upper and lower both ends respectively the butt on the terminal surface of first structural slab 5 and third structural slab 7. Furthermore, a lateral structural plate 9 is arranged on the circumferential outer side of the first structural plate 5 and the third structural plate 7, and the lateral structural plate 9, the first structural plate 5 and the third structural plate 7 surround to form a main body space of the underground structure. Preferably, in the actual setting process, the underground structure is an underground passage structure which is a rectangular cylinder structure.
Preferably, in order to ensure the stability of the underground structure in the soil body, there are also provided pile foundations 14 at the bottom of the underground structure, which abut against the bottom of the underground structure to support it.
Preferably, the number of connecting struts 2 in the present application may be one or more, preferably two, and the actual number thereof is selected according to the design and load-bearing capacity of the elevated structure 1.
Preferably, the buffer layer in the present application is a foam concrete structure, and a waterproof agent is added in the foam concrete structure, so that the buffer layer has a shock absorption effect and a waterproof function, and the buffer layer herein includes the first buffer layer 3 and the second buffer layer 13. Preferably, the thicknesses of the first buffer layer 3 and the second buffer layer 13 in the present application are between 40 and 60cm.
Further, as the utility model discloses a preferred embodiment, still be equipped with connecting reinforcement 10 between underground structure in this application and the first buffer layer 3, the both ends of this connecting reinforcement 10 are inserted respectively and are established in underground structure and first buffer layer 3. Specifically, the length of the connecting steel bar 10 extending into the underground structure and the two ends of the first buffer layer 3 is 8-15 cm. Because first buffer layer 3 itself is different with underground structure material, this makes and appears the separation easily between first buffer layer 3 and the underground structure, sets up connecting reinforcement 10 structure for this reason and connects the two fixedly, and 8 ~ 15cm stretches into the connecting reinforcement 10 of length simultaneously and can guarantee basically that first buffer layer 3 and underground structure between the stability.
Preferably, in order to avoid connecting reinforcement 10 and the junction of underground structure to take place the separation, still be provided with water inflation seal ring 11 in this connecting reinforcement 10 inserts the one end of underground structure, should meet water inflation seal ring 11 and can avoid connecting reinforcement 10 and underground structure junction to take place the corrosion problem, improve connecting reinforcement 10 and underground structure connection's stability.
Preferably, the waterproof capability of the underground structure is improved, and the end face of the underground structure attached to the first buffer layer 3 is further brushed with waterproof paint.
Further, lay waterproof layer 4 on the underground structure top surface for compound polymer from gluing membrane waterproofing membrane in this application, this waterproof layer 4 is the plane and lays on 5 top surfaces of first structural slab, and waterproof layer 4 lays and stretches out 1 ~ 1.5m at the both ends of 5 top surfaces of first structural slab, make waterproof layer 4 carry out the cladding to the turn department of underground structure, take place the condition of leaking in order to avoid the concatenation department of underground structure, avoid the condition of leaking to take place for the connection end of first structural slab 5 and side direction structural slab 9 promptly. After the waterproof layer 4 is lapped on the lateral structural slab 9, the two ends of the waterproof layer 4 are closed by polysulfide sealant, so that the waterproof layer 4 is tightly attached to the lateral structural slab 9.
Further, the connecting strut 2 in the present application vertically penetrates the first structural plate 5 and the second structural plate 6, and the bottom of the connecting strut 2 abuts on the end face of the third structural plate 7. Although the connecting struts 2 are vertically penetrated by the first structural plate 5 and the second structural plate 6, so that the elevated structure 1 is integrally connected with the underground structure. However, the penetration of the connecting strut 2 causes voids in the first structural plate 5 and the second structural plate 6, and in order to avoid leakage between the first structural plate 5 and the exterior and between the upper and lower end faces of the second structural plate 6, it is necessary to provide a waterproof design at the joint between the connecting strut 2 and the first structural plate 5 and the second structural plate 6. Specifically, a second buffer layer 13 is disposed at a gap between the first structural plate 5 and the second structural plate 6 where the connecting strut 2 penetrates. Further preferably, the second buffer layer 13 is attached to the first structural plate 5 and the second structural plate 6, a water stop 12 is further disposed between the second buffer layer 13 and the connecting strut 2, and two ends of the water stop 12 are respectively embedded in the connecting strut 2 and the second buffer layer 13, so as to reduce the possibility that external running water penetrates into the underground structure. This second buffer layer 13 can avoid taking place the rigidity collision between connecting strut 2 and the underground structure, improves the stability of the setting of this connecting strut 2. Preferably, the waterstop 12 is a galvanized steel waterstop.
Further, the connection structure is also required to be arranged at the position where the connection pillar 2 covers the second buffer layer 13, and the connection structure is the connection steel bar 10, so as to increase the connection stability between the connection pillar 2 and the second buffer layer 13.
Further preferably, the waterproof layer 4 is also arranged between the third structural plate 7 and the first buffer layer 3 in the present application, so that the bottom of the underground structure also has a good waterproof capability.
The underground structure and the viaduct in the utility model jointly build the anti-seismic structure, when an earthquake happens, most of earthquake capacity can be absorbed by the first buffer layer 3 around the underground structure at first, and then is transmitted to the underground structure; when earthquake load is further transmitted to the elevated structure 1 through the underground structure, part of earthquake energy can be absorbed by the second buffer layer 13 between the underground structure and the connecting strut 2, and the second buffer layer 13 of the underground structure and the connecting strut 2 can ensure that the connecting strut 2 performs reciprocating motion with a certain amplitude, so that the connecting strut has a horizontal limiting function and a resetting characteristic. In the process, the influence of earthquake load on the underground structure is greatly reduced, the earthquake-resistant performance of the connecting support columns 2 is improved, the shearing damage of the underground structure to the connecting support columns 2 is reduced, and the stability of the elevated structure 1 is ensured.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides an underground structure constructs earthquake-resistant structure with overpass combination which characterized in that includes:
the device comprises an elevated structure arranged on the ground and an underground structure arranged in the soil body, wherein a connecting strut is vertically arranged between the elevated structure and the underground structure in a penetrating manner;
one end of the connecting strut is abutted against the bottom of the elevated structure, and the other end of the connecting strut is inserted into the underground structure;
the lateral outer wall and the end face of the bottom of the underground structure, which is in contact with the soil body, are provided with first buffer layers; and a waterproof layer is arranged on the upper part of the underground structure and the end face of the underground structure, which is in contact with the soil body.
2. An underground structure and an overhead bridge combined earthquake-resistant structure as claimed in claim 1, wherein the underground structure comprises a first structural plate, a second structural plate and a third structural plate which are arranged at intervals along the vertical direction;
a supporting structure plate is arranged among the first structure plate, the second structure plate and the third structure plate, the supporting structure plate vertically penetrates through the second structure plate, and the upper end and the lower end of the supporting structure plate are respectively abutted against the first structure plate and the third structure plate;
the first structural slab and the third structural slab are circumferentially and externally provided with lateral structural slabs, and the lateral structural slabs, the first structural slab and the third structural slab surround to form a passing space of an underground structure.
3. An underground structure and viaduct combined earthquake-resistant structure as claimed in claim 2, wherein a connecting steel bar is arranged between the underground structure and the first buffer layer, and two ends of the connecting steel bar are respectively inserted into the underground structure and the first buffer layer.
4. The underground structure and viaduct co-construction earthquake-resistant structure according to claim 3, wherein a water-swelling water stop ring is further sleeved at one end of the connecting steel bar extending into the underground structure, and the water-swelling water stop ring is embedded in the underground structure.
5. An underground structure and viaduct combined earthquake-resistant structure as claimed in claim 3, wherein the length of the connecting reinforcing steel bar extending into the underground structure and the first buffer layer is 8-15 cm.
6. An underground structure and viaduct combined earthquake-resistant structure as claimed in claim 1, wherein the thickness of the first buffer layer is 40-60 cm.
7. An underground structure and viaduct co-building anti-seismic structure according to claim 2, wherein said connecting pillars vertically penetrate said first structural slab and said second structural slab, and the bottom of said connecting pillars abuts against the end face of said third structural slab.
8. An underground structure and viaduct combined earthquake-resistant structure as claimed in claim 4, wherein a second buffer layer is arranged at the position where the connecting strut penetrates through the gap between the first structural plate and the second structural plate.
9. The underground structure and viaduct combined earthquake-resistant structure according to claim 8, wherein the second buffer layer is arranged around the periphery of the connecting support, a water stop is arranged at the gap between the second buffer layer and the connecting support, and two ends of the water stop are embedded in the connecting support and the second buffer layer respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221817498.7U CN218116544U (en) | 2022-07-14 | 2022-07-14 | Underground structure and viaduct combined construction earthquake-resistant structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221817498.7U CN218116544U (en) | 2022-07-14 | 2022-07-14 | Underground structure and viaduct combined construction earthquake-resistant structure |
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| Publication Number | Publication Date |
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| CN218116544U true CN218116544U (en) | 2022-12-23 |
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| CN202221817498.7U Active CN218116544U (en) | 2022-07-14 | 2022-07-14 | Underground structure and viaduct combined construction earthquake-resistant structure |
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| CN (1) | CN218116544U (en) |
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