CN110886197B - Bridge without expansion joint and construction method - Google Patents
Bridge without expansion joint and construction method Download PDFInfo
- Publication number
- CN110886197B CN110886197B CN201911347801.4A CN201911347801A CN110886197B CN 110886197 B CN110886197 B CN 110886197B CN 201911347801 A CN201911347801 A CN 201911347801A CN 110886197 B CN110886197 B CN 110886197B
- Authority
- CN
- China
- Prior art keywords
- connecting column
- column
- bridge
- filling layer
- main beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
-
- 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
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a bridge without expansion joints and a construction method, wherein the bridge without expansion joints comprises a bridge deck; the integral abutment comprises a first connecting column, a second connecting column, a connecting assembly and a pile foundation, wherein the first end of the first connecting column is fixed on the pile foundation, the second end of the first connecting column and the second end of the second connecting column are connected through the connecting assembly, the connecting assembly comprises an arch part, the arch part is provided with an arc surface, and a main beam is connected with the second connecting column and the bridge deck. A bridge construction method without expansion joints comprises the steps of fixing a first connecting column to a pile foundation, fixing a main beam to a second connecting column, connecting the second connecting column with the first connecting column through a connecting assembly, enabling the second connecting column to swing along an arc-shaped surface relative to the first connecting column, pouring bridge decks, sealing and fixedly connecting gaps among the first connecting column, the connecting assembly and the second connecting column, and pouring end beams. The bridge without the expansion joint and the construction method have strong horizontal deformation resistance.
Description
Technical Field
The invention relates to the technical field of bridges, in particular to a bridge without expansion joints and a construction method.
Background
The bridge can take place the flexible deformation when temperature variation, in order to eliminate deformation to the structure influence, generally can set up the expansion joint in bridge structure, set up telescoping device on the expansion joint, but telescoping device is fragile or inefficacy, influences the normal use of bridge. At present, a seamless bridge with expansion joints is mostly adopted, and expansion deformation of a bridge upper structure is mainly born by pile foundations due to the elimination of expansion devices. In order to meet the expansion deformation of the bridge body and improve the anti-seismic performance, a flexible pile foundation is generally adopted, but the pile foundation bears the vertical bearing capacity of an upper structure and the horizontal force transmitted by deformation, and the stress condition is complex and the structure is unfavorable.
Disclosure of Invention
Based on the above, it is necessary to provide a bridge without expansion joints and a construction method for solving the problem of poor vertical bearing capacity and horizontal deformation resistance of pile foundations.
A bridge without expansion joints, comprising:
a bridge deck;
The integral bridge abutment comprises a first connecting column, a second connecting column, a connecting component and a pile foundation, wherein the first end of the first connecting column is fixed on the pile foundation, the first end of the second connecting column is used for connecting and supporting the bridge deck, the second end of the first connecting column and the second end of the second connecting column are connected through the connecting component and are arranged at intervals, the connecting component comprises an arch part, the arch part is provided with an arc surface, so that the second connecting column can swing along the arc surface relative to the first connecting column, and
And the main beam is connected with the second connecting column and the bridge deck.
Foretell no expansion joint bridge is equipped with integral abutment, and the second end of first spliced pole and second spliced pole is connected through coupling assembling, and the second spliced pole can for first spliced pole is followed the arcwall face and is swung, can absorb the horizontal deformation of bridge betterly, and improves the vertical bearing capacity of pile foundation.
In one embodiment, the connecting assembly includes an arch portion and a connecting portion, the connecting portion is protruding on the arch portion, the arch portion is connected with the first connecting column, and the connecting portion is connected with the second connecting column.
In one embodiment, at least one of the following is included:
The first connecting column comprises a first column body and a first filling layer, wherein the first column body is hollow, the first filling layer is filled in the first column body, the height of the first filling layer is smaller than that of the first column body, so that the first column body reserves a containing cavity to contain the arched part, and/or,
The second connecting column comprises a second column body and a second filling layer, the second column body is hollow, the second filling layer is filled in the second column body, and the second filling layer is provided with a slotted hole to accommodate the connecting portion.
In one embodiment, the first column and/or the second column are steel pipes, and the first filling layer and/or the second filling layer are concrete.
In one embodiment, the device further comprises a transition piece, wherein the second end of the first connecting column and the second end of the second connecting column are arranged at intervals relatively, and the transition piece is arranged at intervals between the second end of the first connecting column and the second end of the second connecting column.
In one embodiment, the second connecting column is provided with a mating opening, and at least part of the main beam is arranged through the mating opening and is connected with the second connecting column into a whole.
In one embodiment, the main beam comprises a first wing plate, a web plate and a second wing plate, the first wing plate and the second wing plate are oppositely arranged, the web plate is vertically or nearly vertically connected so that the main beam is I-shaped, the second connecting column comprises a first section, a second section and a third section, the first section and the second section are oppositely arranged on two sides of the web plate, the first section and the second section are clamped between the first wing plate and the second wing plate, and the third section is connected to the bottom of the second wing plate.
In one embodiment, the bridge further comprises an end beam, wherein the end beam is connected with the first connecting column, the second connecting column and the bridge deck.
In one embodiment, the end beam comprises a bracket and a bracket filling layer, a plurality of shear nails are convexly arranged on the peripheries of the first connecting column and the second connecting column, the bracket filling layer is poured on the bracket, so that the bracket filling layer is fixedly connected with the shear nails and the bracket, a round hole is formed in the main beam, and the bracket can penetrate through the round hole.
A bridge construction method without expansion joints comprises the following steps:
Fixing the first connecting column to the pile foundation;
Fixing a main beam on a second connecting column, connecting the second connecting column with the first connecting column through a connecting component, wherein the connecting component comprises an arched part, the arched part is provided with an arc surface, a gap is reserved between the first connecting column and the second connecting column, and the second connecting column can swing along the arc surface relative to the first connecting column so as to eliminate bending moment caused by the self-weight of the main beam on the second connecting column;
Pouring a bridge deck so that the bridge deck is fixed to the main beams;
sealing and solidifying the gaps of the first connecting column, the connecting assembly and the second connecting column to form an integral bridge abutment;
and pouring the end beam.
According to the expansion joint-free bridge construction method, the second ends of the first connecting column and the second connecting column are connected through the connecting assembly, the second connecting column can swing along the arc-shaped surface relative to the first connecting column, bending moment caused by self weight of the main beam during construction is eliminated, bending resistance of the connecting position of the first connecting column and the second connecting column is increased, horizontal deformation of a bridge can be well absorbed, and vertical bearing capacity of a pile foundation is improved.
Drawings
FIG. 1 is a side view of an embodiment of a bridge without expansion joints (where the first and second connecting posts are not connected);
FIG. 2 is an exploded schematic view of a second connection post of the expansion joint-free bridge shown in FIG. 1;
FIG. 3 is a schematic illustration of the connection of a second connection post to a main beam of the expansion joint-free bridge shown in FIG. 1;
FIG. 4 is a front view of a portion of an embodiment of a bridge without expansion joints (wherein the first and second connecting posts are not connected);
FIG. 5 is a cross-sectional view taken along the A-A plane of FIG. 4;
FIG. 6 is a side view of an embodiment of a bridge without expansion joints (where a first connecting column and a second connecting column are connected);
FIG. 7 is a front view of a portion of an embodiment of a bridge without expansion joints (wherein a first connecting column and a second connecting column are connected);
FIG. 8 is a cross-sectional view taken along the B-B plane of FIG. 7;
FIG. 9 is a partial front view of an alternate embodiment of an integral abutment (with first and second connection posts connected);
FIG. 10 is a cross-sectional view taken along the C-C plane of FIG. 9;
FIG. 11 is a partial front view of yet another embodiment of an integral abutment (with first and second connection posts connected);
FIG. 12 is a D-D sectional view of FIG. 11;
FIG. 13 is a partial front view of yet another embodiment of an integral abutment (with first and second connection posts connected);
fig. 14 is a sectional view taken along the plane E-E of fig. 13.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 6, an expansion joint-free bridge of an embodiment includes a deck slab 100, an integral abutment 200, a main girder 300 and an end girder 400.
Referring to fig. 1, the integral abutment 200 includes a pile foundation 210, a first connecting post 220, a second connecting post 230 and a connecting assembly 240, wherein a first end 221 of the first connecting post 220 is fixed on the pile foundation 210, a first end 231 of the second connecting post 230 is used for connecting and supporting the bridge deck 100, a second end 222 of the first connecting post 220 and a second end 232 of the second connecting post 230 are connected by the connecting assembly 240, referring to fig. 4, the connecting assembly 240 is provided with an arc-shaped surface 240a, and the arc-shaped surface 240a protrudes upwards towards the second connecting post 230, so that the second connecting post 230 can swing along the arc-shaped surface 240a relative to the first connecting post 220.
Specifically, referring to fig. 1, the pile foundation 210 includes a pile body 211 and a pile column 212, wherein the pile column 212 is inserted into the pile body 211 and partially exposed, and the partially exposed pile column 212 is connected to a first end 221 of a first connection column 220.
In some embodiments, the post 212 is connected to the first end 221 of the first connection post 220 by welding. In other embodiments, the post 212 and the first end 221 of the first connecting post 220 may be further connected by riveting.
In some embodiments, the pile body 211 is concrete, the pile body 212 is a hollow steel pipe, and because the connection part of the pile foundation 210 and the first connecting column 220 is stressed greatly and is easy to damage, if the first connecting column 220 is directly inserted into the pile foundation 210, the first connecting column 220 is difficult to repair after being damaged, so that the bridge use is affected, the pile body 211 is provided with the pile body 212 to reduce the bearing bending moment of the first connecting column 220, prolong the service life of the first connecting column 220, and absorb the horizontal and longitudinal deformation of the bridge well through the cooperation of the concrete and the hollow steel pipe, and improve the vertical bearing capacity of the pile foundation 210. In other embodiments, pile body 211 is concrete, pile 212 is a concrete column, and pile 212 is integrally connected with pile body 211.
In some embodiments, the pile 212 is a single layer hollow steel pipe. In other embodiments, the pile 212 may be a double-layer single-layer hollow steel pipe, i.e. two layers of steel pipes are coaxially sleeved, and concrete is poured into the cavity between the two layers of steel pipes to improve the vertical bearing capacity and horizontal deformation resistance of the pile foundation 210.
In some embodiments, the pile body 211, the pile column 212 and the first connecting column 220 are all cylindrical and coaxially arranged, which is beneficial to balancing the stress of the pile foundation 210 and improving the structural stability. In other embodiments, the pile body 211, the pile 212 and the first connecting column 220 may have square columns, prisms or other irregular shapes.
Referring to fig. 4, the connecting component 240 includes an arch portion 241 and a connecting portion 242, the arch portion 241 is disposed on the arch portion 240a, the connecting portion 242 is convexly disposed on the arch portion 241, the arch portion 241 is connected to the first connecting post 220, and the connecting portion 242 is connected to the second connecting post 230.
Specifically, referring to fig. 1 in combination, the first connection column 220 includes a first column 223 and a first filling layer 224, the first column 223 is hollow, the first filling layer 224 is filled in the first column 223, and the height of the first filling layer 224 is smaller than that of the first column 223, so that an accommodating cavity (not shown in the drawing) can be reserved at the upper end of the first column 223 to accommodate the arch portion 241.
In some embodiments, the first column 223 is a hollow steel tube and the first filler layer 224 is concrete. In other embodiments, the first column 223 may also be a concrete column.
In some embodiments, the total height of the arch portion 241 and the connecting portion 242 is 50-300mm, and the height difference between the first filling layer 224 and the first column 223 is 50-200mm, so that the arch portion 241 can be well located in the first column 223 and the connecting portion 242 is partially exposed outside the first column 223, and the connecting portion 242 partially exposed outside the first column 223 is connected with the second connecting column 230. In other embodiments, the total height of the arch portion 241 and the connecting portion 242 may be less than 50mm or greater than 300mm, and the height difference between the first filling layer 224 and the first column 223 may be less than 50mm or greater than 200mm.
In some embodiments, the arcuate surface 240a is disposed on the arcuate portion 241, the arcuate surface 240a is convex toward the second connection post 230, the arcuate portion 241 is connected to the first connection post 220, and the connection portion 242 is connected to the second connection post 230. In other embodiments, the arcuate surface 240a is convex toward the second connection post 230, the connection portion 242 is connected to the first connection post 220, and the arcuate portion 241 is connected to the second connection post 230.
Referring to fig. 1, the second connecting post 230 includes a second post 233 and a second filling layer 234, the second post 233 is hollow, the second filling layer 234 is filled in the second post 233, and a slot 235 is formed in the middle of the second filling layer 234 to accommodate the connecting portion 242.
In some embodiments, the second column 233 is a hollow steel tube and the second filler layer 234 is concrete. In other embodiments, the second column 233 may also be a concrete column.
In some embodiments, referring to fig. 5, the connecting portion 242 is rectangular and the slot 235 is rectangular to match the connecting portion 242, so as to better position the second connecting post 230, and if the connecting portion 242 is cylindrical, the second connecting post 230 is easy to rotate relative to the first connecting post 220 about the connecting portion 242, so that the torque of the first connecting post 220 is increased, and the stability of the integral bridge 200 is affected. In other embodiments, the connecting portion 242 may have a prismatic shape or other irregular shape, and the slot 235 may have a prismatic shape or other irregular shape.
In some embodiments, the arch portion 241 and the connecting portion 242 are of a split structure, the arch portion 241 is provided with a receiving space, and the connecting portion 242 is directly inserted into the receiving space, so that the assembly is convenient. In other embodiments, the arch portion 241 and the connecting portion 242 may be integrally formed, so that the overall structure is good and the strength is high.
In some embodiments, the number of the connecting portions 242 is one and is located at the center of the arch portion 241 to equalize the stress of the connecting device. In other embodiments, the number of the connecting portions 242 may be at least two and arranged in parallel to the arch portion 241 at intervals.
In some embodiments, the number of integral bridge decks 200 is multiple and spaced side-by-side to stabilize the bridge structure. In other embodiments, the plurality of integral abutments 200 can also be arranged in a circular array or other irregular arrangement.
Referring to fig. 1 and 4, the girder 300 is connected to the second connection post 230, and then the second connection post 230 and the first connection post 220 are connected through the connection assembly 240, and then the bridge deck 100 is cast. Because the main beam 300 is located at one side of the second connecting column 230 and has a weight, the second connecting column 230 is pressed, so that the second connecting column 230 can swing left and right along the arc surface 240a relative to the first connecting column 220, which is used for eliminating bending moment caused by the self weight of the main beam 300 during construction, increasing the bending resistance of the connecting position of the first connecting column 220 and the second connecting column 230, and prolonging the service life of the structure.
In some embodiments, referring to fig. 4 and 5, the filling surface 234a of the second filling layer 234 after filling the second pillar 233 is planar, the arched portion 241 is semi-cylindrical and the bottom surface is rectangular, so that the second connecting pillar 230 swings along the arc-shaped surface 240a of the arched portion 241 relative to the first connecting pillar 220.
In other embodiments, referring to fig. 9 and 10, a filling surface 234a of the second filling layer 234 after being filled in the second post 233 is an upwardly convex arc surface, and a curve radius of the filling surface 234a is larger than a curve radius of an arc surface 240a of the arch portion 241, so as to prevent the arch portion 241 from interfering with the swing of the second connecting post 230, the arch portion 241 is a semi-cylindrical shape and the bottom surface is rectangular in cross section.
In still other embodiments, referring to fig. 11 and 12, the filling surface 234a of the second filling layer 234 after filling the second cylinder 233 is planar, the arched portion 241 is hemispherical and the bottom surface is circular in cross section.
In other embodiments, referring to fig. 13 and 14, a filling surface 234a of the second filling layer 234 after being filled in the second post 233 is an upwardly convex arc surface, and a curve radius of the filling surface 234a is larger than a curve radius of an arc surface 240a of the arch portion 241, so as to prevent the arch portion 241 from interfering with the swing of the second connecting post 230, the arch portion 241 is hemispherical and the bottom surface is circular in cross section.
Further, referring to fig. 1, in order to facilitate the second connection post 230 to swing relative to the first connection post 220, the second end 222 of the first connection post 220 and the second end 232 of the second connection post 230 are disposed at opposite intervals to eliminate bending moment caused by the dead weight of the main beam 300 during construction, the integral bridge 200 further includes a transition piece 201, and the transition piece 201 is disposed at an interval between the second end 222 of the first connection post 220 and the second end 232 of the second connection post 230.
Preferably, in some embodiments, the second ends 222 of the first connection posts 220 and the second ends 232 of the second connection posts 230 are spaced apart by a spacing of 100-300mm. In other embodiments, the spacing between the second ends 222, 232 of the first and second connection posts 220, 230 may be less than 100mm or greater than 300mm.
In some embodiments, the first connection post 220 and the second connection post 230 are both hollow cylindrical and coaxially disposed. In other embodiments, the first connecting post 220 and the second connecting post 230 may also have a hollow square post shape or other irregular shapes.
In some embodiments, the transition piece 201 is in an integral strip structure and is enclosed at the interval between the first connecting post 220 and the second connecting post 230, the transition piece 201 is connected with the first connecting post 220 and the second connecting post 230 by welding, and the transition piece 201 is made of steel. In other embodiments, the transition piece 201 may also be a split-joint structure.
Referring to fig. 1, the main beam 300 is connected to the second connecting post 230 and the bridge deck 100. Specifically, the second connecting post 230 is provided with a mating opening, and at least part of the main beam 300 is connected with the second connecting post 230 into a whole through the mating opening, so that the main beam 300 is fixedly connected with the second connecting post 230, and unstable connection between the main beam 300 and the second connecting post 230 is avoided, and the structure is unstable.
In some embodiments, the main beam 300 is connected to the second connection post 230 by welding. In other embodiments, the main beam 300 may also be connected to the second connection post 230 by riveting.
In some embodiments, referring to fig. 2, the second connecting post 230 is provided with a mating opening to form a first segment 236, a second segment 237 and a third segment 238, referring to fig. 3, the main beam 300 includes a first wing plate 310, a web 320 and a second wing plate 330, the first wing plate 310 and the second wing plate 330 are disposed opposite to each other and are connected to the web 320 vertically or nearly vertically so that the main beam 300 is i-shaped, the first segment 236 and the second segment 237 are disposed on opposite sides of the web 320, respectively, the first segment 236 and the second segment 237 are sandwiched between the first wing plate 310 and the second wing plate 330, and the third segment 238 is connected to the bottom of the second wing plate 330. In other embodiments, the main beam 300 may be in a shape of a king, an L, a W, or other irregular shapes, and the number of the segments included in the second connecting post 230 may be greater than three and in different splicing manners, so long as a part of the main beam 300 structure can be embedded in the second connecting post 230, so as to ensure the stability of the structural connection.
In some embodiments, the first segment 236 and the second segment 237 are semi-arc sheets, the third segment 238 is hollow cylindrical, and the cavity formed by the first segment 236 and the second segment 237 is disposed coaxially with the third segment lumen. In other embodiments, the first segment 236 and the second segment 237 may be in a U-shape, the third segment 238 is in a hollow square column shape, and the cavity formed by the first segment 236 and the second segment 237 is disposed coaxially with the cavity of the third segment.
Further, the bridge without expansion joints further includes an intermediate beam (not shown in the drawings), in some embodiments, since the number of main beams 300 is at least two and the plurality of main beams 300 are arranged at intervals side by side, the main beams 300 extend in the lateral direction, and the intermediate beam is vertically arranged between two adjacent main beams 300 and extends in the longitudinal direction, so as to connect the plurality of main beams 300 to ensure structural stability.
Referring to fig. 6 and 7, the end beam 400 is connected to the first connection post 220, the second connection post 230 and the bridge deck 100, and is disposed side by side with a space from the middle beam to reinforce and connect the plurality of integral bridge decks 200.
Specifically, the end beam 400 includes a bracket and a bracket filling layer (not shown in the drawings), referring to fig. 7, a plurality of shear pins 225 are protruded on the outer peripheries of the first connecting column 220 and the second connecting column 230, and the bracket filling layer is poured on the bracket to fix the bracket filling layer with the shear pins 225 and the bracket, so that the end beam 400 is fixedly connected with the first connecting column 220, the second connecting column 230 and the bridge deck 100. The support is steel bar, and the support filling layer is concrete.
Further, referring to fig. 3, when the bracket intersects with the web 320 of the main beam 300, a round hole 301 is formed in the web 320 of the main beam 300, and in some embodiments, the diameter of the round hole 301 is greater than or equal to 2.5 times that of the steel bar, so that the steel bar can be smoothly threaded through the round hole 301. In other embodiments, the diameter of the circular hole 301 may be less than 2.5 times the diameter of the rebar, so long as the rebar can be threaded out of the circular hole 301.
Referring to fig. 7, the bridge without expansion joints further includes a bridge plate 500, and the junction between the end beam 400 and the bridge deck 100 forms a step surface 110, and the bridge plate 500 is connected to the step surface 110 and integrally connected to the bridge deck 100, for preventing the end of the bridge without expansion joints from sinking. Specifically, the access panel 500 is a reinforced concrete structure.
The bridge without expansion joints is provided with the integral bridge abutment 200, the integral bridge abutment 200 comprises pile foundations 210, first connecting columns 220, second connecting columns 230 and connecting assemblies 240, the second ends of the first connecting columns 220 and the second connecting columns 230 are connected through the connecting assemblies 240, the second connecting columns 230 can swing along arc-shaped surfaces 240a relative to the first connecting columns 220, the horizontal deformation of the bridge can be well absorbed, the vertical bearing capacity of the pile foundations 210 is improved, part of the main beams 300 are embedded into the second connecting columns 230 and are connected with the second connecting columns 230 into a whole, the stability of structural connection can be improved, middle beams are vertically arranged between two adjacent main beams 300 to connect the plurality of main beams 300, the structural stability is guaranteed, and the end beams 400 and the bridge plates 500 are arranged to prevent the end parts of the bridge from settling.
The construction method of the bridge without the expansion joint comprises the following steps:
fixing the first connection post 220 to the pile foundation 210;
Specifically, referring to fig. 1, the pile foundation 210 includes a pile body 211 and a pile column 212, the pile column 212 is inserted into the pile body 211 and fixed by casting concrete, the first connecting column 220 includes a first column 223 and a first filling layer 224, a first end 221 of the first column 223 is connected with the pile column 212 by welding, the first filling layer 224 is filled into the first column 223, and the height of the first filling layer 224 is smaller than that of the first column 223, so that the first column 223 is kept in a cavity to accommodate the connecting component 240.
Further, in order to facilitate the assembly of the subsequent end beam 400, before the first end 221 of the first column 223 is connected to the pile 212 by welding, a plurality of shear pins 225 may be welded on the outer periphery of the second end of the first column 223, and after the shear pins 225 are protruded on the first column 223, the first column 223 is connected to the pile 212 and the first filling layer 224 is filled in the first column 223.
The main beam 300 is fixed to the second connection post 230, the second connection post 230 is connected with the first connection post 220 through the connection assembly 240, a gap is reserved between the first connection post 220 and the second connection post 230, the connection assembly 240 is provided with an arc-shaped surface 240a, and the arc-shaped surface 240a of the connection assembly 240 protrudes upwards towards the second connection post 230, so that the second connection post 230 can swing along the arc-shaped surface 240a relative to the first connection post 220, and the bending moment caused by the self weight of the main beam 300 is eliminated.
Specifically, referring to fig. 1 to 3, the second connection post 230 includes a second post 233 and a second filling layer 234, at least a portion of the main beam 300 is embedded in the second post 233 and integrally connected to the second post 233 by welding or riveting, the arched portion 241 of the connection assembly 240 is placed in the first post 223, the connection portion 242 is inserted in the arched portion 241, the second filling layer 234 is filled in the second post 233, the second post 233 with the main beam 300 fixed thereon is erected above the first connection post 220 by hanging, and the connection portion 242 of the connection assembly 240 is inserted in the slot 235 of the second filling layer 234, so that the arc surface 240a of the connection assembly 240 protrudes upward toward the second connection post 230, and the second connection post 230 can swing along the arc surface 240a relative to the first connection post 220.
In some embodiments, before the main beam 300 is connected to the second post 233, a plurality of shear pins 225 may be welded to the outer periphery of the second post 233 and the main beam 300 to facilitate subsequent assembly. In other embodiments, the shear pins 225 may also be connected to the main beam 300 by staking.
Further, in order to facilitate the swing of the second connection post 230, the second ends 222 and 232 of the first and second posts 223 and 233 are spaced apart, and the second ends 222 and 232 of the first and second posts 223 and 233 are closed by welding the transition piece 201 at the gap.
Further, the middle beam is vertically disposed between two adjacent main beams 300, so that the plurality of main beams 300 are connected and the structure is kept stable.
The deck slab 100 is poured such that the deck slab 100 is secured to the main beam 300.
Specifically, in some embodiments, when the deck slab 100 is cast-in-place, the form is erected with the main beams 300 as supports and the deck slab 100 is poured through the concrete, and the form is removed after the concrete has reached the designed strength. In other embodiments, when the deck slab 100 is prefabricated, the prefabricated deck slab 100 segments are installed first, and then the deck slab 100 segment gaps are poured with concrete to form the overall deck slab 100 structure.
In some embodiments, after the deck slab 100 is poured, the space between the first connection post 220, the connection assembly 240, and the second connection post 230 is closed and consolidated to form the monolithic bridge abutment 200. Specifically, the dimensions of the space between the second end 222 of the first connecting post 220 and the second end 232 of the second connecting post 230 are measured, the transition piece 201 is welded to the space, please refer to fig. 7 and 8, grouting holes and grouting holes 250 are formed in the first connecting post 220 and/or the second connecting post 230, grouting material or cement mortar 600 is filled into the cavity surrounding the connecting assembly 240 through the grouting holes and the grouting holes 250, grouting material or cement mortar 600 is cured, and after the grouting material or cement mortar 600 is sealed and consolidated, the first connecting post 220 and the second connecting post 230 are connected into a whole from bottom to top to form the integral bridge abutment 200. In other embodiments, the first connecting post 220, the connecting component 240 and the second connecting post 230 are not sealed and fixed after the bridge deck 100 is poured without gaps at the intervals of the first connecting post 220, the connecting component 240 and the second connecting post 230.
Further, end beam 400 is cast. Specifically, the end beam 400 and the bottom formwork are installed, the reinforcing steel bars of the end beam 400 are bound, the side formwork is installed, and concrete is poured, and after the concrete reaches the design strength, the bottom formwork and the side formwork are removed, so that the end beam 400 is fixedly connected with the second connecting column 230, the first connecting column 220 and the bridge deck 100.
In some embodiments, after the deck slab 100 is poured, the space between the first connection post 220, the connection assembly 240, and the second connection post 230 is closed and consolidated to form the monolithic bridge abutment 200. In other embodiments, after the bridge deck 100 and the end beam 400 are poured, the gaps between the first connecting column 220, the connecting component 240 and the second connecting column 230 are sealed and fixed to form the integral bridge abutment 200, so that bending moment generated by the components such as the main beam 300 and the bridge deck 100 due to dead weight can be better eliminated, and horizontal deformation of the bridge can be better absorbed.
Further, the filling and pouring of the butt strap 500 after the construction is completed, and finally the paving of the bridge deck is perfected, so that the bridge structure is stable, and the end part of the bridge is prevented from sedimentation.
According to the expansion joint-free bridge construction method, the girder 300 is connected to the second connecting column 230, the second connecting column 230 is connected with the first connecting column 220 through the connecting assembly 240, the second connecting column 230 can swing along the arc-shaped surface 240a relative to the first connecting column 220, bending moment caused by the self weight of the girder 300 during construction is eliminated, bending resistance of the connecting position of the first connecting column 220 and the second connecting column 230 is increased, the bridge deck 100 is poured, the first connecting column 220, the connecting assembly 240 and the second connecting column 230 are sealed and fixed, so that the integral bridge abutment 200 is formed, horizontal deformation of the expansion joint-free bridge can be well absorbed, and vertical bearing capacity of the pile foundation 210 is improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911347801.4A CN110886197B (en) | 2019-12-24 | 2019-12-24 | Bridge without expansion joint and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911347801.4A CN110886197B (en) | 2019-12-24 | 2019-12-24 | Bridge without expansion joint and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110886197A CN110886197A (en) | 2020-03-17 |
| CN110886197B true CN110886197B (en) | 2024-12-03 |
Family
ID=69753008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911347801.4A Active CN110886197B (en) | 2019-12-24 | 2019-12-24 | Bridge without expansion joint and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110886197B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110983958B (en) * | 2019-12-24 | 2025-01-14 | 深圳市市政设计研究院有限公司 | Integral bridge abutment and construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265619A (en) * | 2018-04-10 | 2018-07-10 | 深圳市市政设计研究院有限公司 | A kind of bridge abutment structure and its construction method for jointless bridge |
| CN207715914U (en) * | 2017-10-30 | 2018-08-10 | 福州鹏飞制冷设备有限公司 | A kind of spherical shape aseismatic bearing |
| CN110983958A (en) * | 2019-12-24 | 2020-04-10 | 深圳市市政设计研究院有限公司 | Integral bridge abutment and construction method |
| CN211922259U (en) * | 2019-12-24 | 2020-11-13 | 深圳市市政设计研究院有限公司 | Bridge without expansion joint |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3811854B2 (en) * | 2002-05-10 | 2006-08-23 | 清水建設株式会社 | Vibration control mechanism |
| CN104831618B (en) * | 2015-04-20 | 2016-07-06 | 福州大学 | An abutment reaming structure for optimizing the deformation capacity of integral abutment bridges |
-
2019
- 2019-12-24 CN CN201911347801.4A patent/CN110886197B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207715914U (en) * | 2017-10-30 | 2018-08-10 | 福州鹏飞制冷设备有限公司 | A kind of spherical shape aseismatic bearing |
| CN108265619A (en) * | 2018-04-10 | 2018-07-10 | 深圳市市政设计研究院有限公司 | A kind of bridge abutment structure and its construction method for jointless bridge |
| CN110983958A (en) * | 2019-12-24 | 2020-04-10 | 深圳市市政设计研究院有限公司 | Integral bridge abutment and construction method |
| CN211922259U (en) * | 2019-12-24 | 2020-11-13 | 深圳市市政设计研究院有限公司 | Bridge without expansion joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110886197A (en) | 2020-03-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100797194B1 (en) | Concrete composite column and building construction method using the same | |
| KR101645538B1 (en) | Double wall and double wall structure produced by using double wall | |
| CN108571070B (en) | Prefabricated steel tube concrete ring beam connecting structure and construction method | |
| KR20100054889A (en) | Development of fabricated internally confined hollow concrete filled tube using corrugated tube | |
| CN111576619B (en) | Production method of high-strength concrete post-cast assembled frame system | |
| KR101325245B1 (en) | Bridge Post which is assembled by precasted units | |
| CN105926427B (en) | Pier beam transition connecting construction | |
| CN106087707A (en) | A kind of accessory configurations preventing existing bridge lateral from toppling and construction method thereof | |
| CN107476470A (en) | Steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls and its construction method | |
| KR101962853B1 (en) | Joint for Precast Beam and Columns | |
| CN111411721A (en) | A prefabricated prefabricated sub-beam composite member | |
| CN110886197B (en) | Bridge without expansion joint and construction method | |
| CN114687294B (en) | Prefabricated steel tube concrete and reinforced concrete assembled bridge and construction method thereof | |
| CN110983958B (en) | Integral bridge abutment and construction method | |
| CN209261005U (en) | Precast splice type superimposed sheet suspension type support construction | |
| Mashal et al. | Quasi-static cyclic tests of half-scale fully precast bridge bents incorporating emulative and posttensioned low damage solutions | |
| CN211922259U (en) | Bridge without expansion joint | |
| CN212175459U (en) | Integral abutment | |
| CN117758601B (en) | Assembled pier without bearing platform for high-intensity areas and construction method | |
| CN105714934A (en) | Node connecting structure of assembled circular concrete-filled steel tube special-shaped column-in-column and construction method of node connecting structure | |
| CN118547799A (en) | An assembled shear wall energy dissipation and shock absorption joint connection structure and construction method thereof | |
| CN215518321U (en) | Bamboo arch bridge arch foot and arch base embedding structure | |
| CN216076559U (en) | Assembled self-adaptation vertical deformation's concrete structure system | |
| KR102503181B1 (en) | Concrete box girder and bridge using the same | |
| JP5029271B2 (en) | Structure of a continuous I-girder bridge and its I-girder near its intermediate support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |