CN111827084A - Frame pier connected with concrete column through steel cross beam and construction method - Google Patents
Frame pier connected with concrete column through steel cross beam and construction method Download PDFInfo
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- CN111827084A CN111827084A CN202010606634.7A CN202010606634A CN111827084A CN 111827084 A CN111827084 A CN 111827084A CN 202010606634 A CN202010606634 A CN 202010606634A CN 111827084 A CN111827084 A CN 111827084A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention provides a frame pier connected with a concrete column through a steel cross beam and a construction method, and relates to the technical field of bridge construction. The frame pier comprises a steel cross beam and a pier stud, a steel-concrete combination section is arranged at the joint of the steel cross beam and the pier stud, the steel-concrete combination section comprises a top steel plate, a bottom steel plate and a vertical plate, shear nails, stiffening ribs and rib plates are arranged on the steel-concrete structure section, a pier stud transition section is arranged above the pier stud, main ribs and the reinforcing ribs extend out of the top of the pier stud by preset lengths, during assembly, the main ribs and the reinforcing ribs on the pier stud penetrate through reserved holes in the bottom steel plate of the steel cross beam, post-cast concrete is poured into pouring holes in the top steel plate, post-cast concrete is cured, and after post-cast concrete curing is completed, connection between the steel cross beam and the pier stud is realized; the construction method corresponds to the structure of a frame pier. The structure and the construction method have small influence on the railway and the road below, the construction safety risk is small, the assembling speed of the beam and the pier stud is high, the stress is reliable, the cost is low, and the foundation stress can be reduced.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a framed pier connected with a concrete column through a steel cross beam and a construction method.
Background
When projects such as railways, municipal works, highways and the like are crossed with small angles such as the existing railways and roads, the frame type piers are often adopted, the frame piers are used for crossing barriers, and small-span beam bodies such as simply supported beams are arranged above the frame piers, so that the economic efficiency is better.
In the past, a frame pier is usually constructed in a cast-in-place mode, pier columns and cross beams are constructed by a support method, the height of the support is high, the construction risk is large, and the construction interference is large, and if the cross beams are constructed by a prefabricated assembly method, the construction speed can be obviously improved, and the construction interference can be reduced; the cross beam is usually made of a steel structure, the steel structure has the advantages of light dead weight, convenience in transportation and hoisting, particular suitability for a long-span cross beam and the like, but the problems that the joint between the steel cross beam and the pier stud is complex in stress, the steel-concrete connection structure is difficult to process, and how to ensure the rapid assembly between the steel cross beam and the pier stud and the like exist; meanwhile, if the steel beam and the pier stud of the frame pier are assembled at one time and form consolidation between the steel beam and the pier stud, the first-stage self weight of the upper beam body above the frame pier, the second-stage self weight of the bridge deck attachment and the like cause bending of the pier bottom, so that the stress of the foundation is increased, and the difficulty in designing the foundation is often caused. Therefore, it is an urgent problem to develop a frame pier connected with a concrete column through a steel beam and a construction method thereof.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a frame pier connected with a concrete column through a steel cross beam and a construction method, so that the influence on a railway and a road below is small, the construction safety risk is small, the assembly speed of the cross beam and the pier column is high, the stress is reliable, the cost is low, and the stress of a foundation can be reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a frame pier connected with a concrete column through a steel beam, which comprises the steel beam and the pier column, wherein a steel-concrete combining section is arranged at the joint of the steel beam and the pier column, the steel-concrete combining section comprises a top steel plate, a bottom steel plate and a vertical plate, shear nails, stiffening ribs and rib plates are arranged on the steel-concrete structure section, a pier column transition section is arranged above the pier column, main ribs and the stiffening ribs extend out of the top of the pier column by preset lengths, during assembly, the main ribs and the stiffening ribs on the pier column penetrate through reserved holes in the bottom steel plate of the steel beam, post-cast concrete is poured into pouring holes in the top steel plate, the post-cast concrete is cured, and after the post-cast concrete is cured, the connection between the steel beam and the pier column is realized.
Furthermore, the top steel plate is located the top surface of steel-concrete combined section, set up pouring hole and exhaust hole on the top steel plate.
Further, the end steel sheet is located the bottom surface of steel-concrete combination section, set up a plurality of preformed holes on the end steel sheet, it is a plurality of the preformed hole will a plurality of bar steel sheet regions are cut apart into to the end steel sheet, every the size in preformed hole is greater than the outline of owner muscle, every all be equipped with the floor in the bar steel sheet region and strengthen.
Furthermore, the riser is located the steel-concrete joint section with all around the pier stud meets, simultaneously pier stud center department sets up the riser, this department riser with temporary support in the pier stud corresponds, temporary support corresponds with temporary support column.
Furthermore, a transition plate is arranged at the transition section of the pier stud, the transition plate comprises a columnar structure formed by four vertical steel plates in a surrounding mode, the height of the columnar structure is the same as the stacking height of the temporary support column and the temporary support, the upper portion of the transition plate is connected with the steel cross beam, the lower portion of the transition plate is connected with the top of the pier stud, and a shear nail and a stiffening rib are arranged on the transition plate.
Further, the shear nails are dispersedly arranged on the top steel plate and the vertical plate; the stiffening ribs are dispersedly arranged on the top steel plate and the vertical plate of the steel beam; and at the joint of the steel beam and the pier stud, the shear nails and the stiffening ribs are connected with post-cast concrete.
Furthermore, the rib plates are arranged on the top steel plate, the vertical plates and the bottom steel plate of the steel cross beam, a plurality of rib plates are arranged along the inner contour of the steel cross beam, a plurality of reinforcing steel bar holes are formed in the rib plates, and the perforated reinforcing steel bars penetrate through the reinforcing steel bar holes and are welded and fixed with the vertical plates on two sides.
Furthermore, the pier stud is prefabricated or cast in place, a pier stud transition section is arranged at the top of the pier stud, the outer contour shape of the pier stud transition section is the same as that of a transition plate of the steel cross beam, and the outer contour size of the pier stud transition section is larger than that of other positions of the pier stud;
the main reinforcement adopts the reinforcing bar of pier stud self configuration, the strengthening rib anchor is in inside the pier stud.
Furthermore, a one-time consolidation mode is adopted between the steel cross beam and the pier stud, a transition plate, a temporary support column and a temporary support are not arranged, a splicing seam is laid at the top of the pier stud during construction, and high-strength mortar is adopted as the splicing seam.
The invention provides a construction method of a frame pier connected with a concrete column through a steel cross beam, which comprises the following steps:
firstly, pier stud construction, namely prefabricating and assembling a steel cross beam;
step two, constructing a temporary support column at the top of the pier column, and mounting a temporary support on the temporary support column;
or paving splicing seams on the top surfaces of the piers without arranging temporary support columns and temporary supports;
step three, hoisting the steel beam, aligning the steel beam with the pier stud, and penetrating the main ribs and the reinforcing ribs on the pier stud into the reserved holes in the bottom steel plate;
fourthly, supporting the steel beam through a temporary support, and erecting a beam body above the steel beam;
or, supporting the steel beam through the splicing seam, and erecting a beam body above the steel beam;
pouring post-cast concrete from the pouring holes in the top steel plate to complete the construction of the steel-concrete combined section;
and step six, pouring concrete after maintenance, and finishing construction.
The invention has the beneficial effects that:
the invention provides a frame pier connected with a concrete column through a steel cross beam and a construction method, which can obtain the following effects:
1. through setting up the steel crossbeam, alleviateed the crossbeam weight, be convenient for transportation and hoist and mount, construction speed is fast, construction interference is little.
2. Through structures such as shear nails and perforated steel bar shear keys arranged in the steel cross beam, the strength of the connecting part is obviously increased, mutual force transmission between the steel cross beam and post-cast concrete is ensured, the load force transmission path is clear, and the quality is easy to guarantee.
3. The construction tolerance of assembling between steel crossbeam and pier stud is big, assemble simply fast, easily penetrates between pier stud owner muscle and the steel crossbeam, and the rigid connection is formed through the back concreting between the two, and the atress is safe, solves the problem of atress in coordination between steel crossbeam and pier stud.
4. The steel beam and the pier stud are connected in stages, namely the steel beam and the pier stud are hinged firstly and then are solidified, the steel beam and the pier stud are connected through the temporary support firstly, the upper beam body is erected, and then the steel beam and the pier stud are solidified. Thereby avoiding the foundation from being stressed greatly due to one-time consolidation and solving the problem of difficult foundation design.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic front view of a frame pier connected to a concrete column via a steel beam according to an embodiment of the present invention;
fig. 2 is a schematic top-view structural view of a frame pier connected to a concrete column through a steel cross beam according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a pier of a frame pier connected to a concrete column through a steel cross beam according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a steel beam of a frame pier connected to a concrete column through the steel beam according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a steel-concrete joint section of a frame pier connected to a concrete column through a steel cross beam according to an embodiment of the present invention;
fig. 6 is a schematic sectional view-i of fig. 5 illustrating a frame pier connected to a concrete column by a steel beam according to an embodiment of the present invention;
fig. 7 is a schematic sectional view ii-ii of fig. 5 illustrating a frame pier connected to a concrete column by a steel cross beam according to an embodiment of the present invention;
fig. 8 is a schematic sectional view of the iii-iii structure of fig. 5 of a frame pier connected to a concrete column by a steel beam according to an embodiment of the present invention;
fig. 9 is a schematic view of the structure of the section iv-iv of fig. 5 of a frame pier connected to a concrete column by a steel beam according to an embodiment of the present invention;
fig. 10 is a schematic view of a temporary support structure of a frame pier connected to a concrete column by a steel cross beam according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a frame pier connected to a concrete column through a steel cross beam according to a second embodiment of the present invention.
Icon:
1-a steel beam;
2-pier stud;
21-pier column transition section;
3-main reinforcement;
31-reinforcing ribs;
4-a steel-concrete combined section;
5-post-pouring concrete;
6-top steel plate;
61-a perfusion hole;
62-vent hole;
7-bottom steel plate;
71-preformed hole;
8-a vertical plate;
9-a transition plate;
10-shear pins;
11-a rib plate;
12-reinforcing steel bar holes;
13-punching reinforcing steel bars;
14-a stiffener;
15-temporary support columns;
16-a temporary support;
17-splicing seam.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1 to 10, a schematic structural diagram of a frame pier connected to a concrete column through a steel beam 1 according to an embodiment of the present invention is provided, and the frame pier and a construction method of the frame pier according to the present invention are described with reference to fig. 1 to 10, and specific structures and steps are as follows.
The embodiment of the invention provides a frame pier connected with a concrete column through a steel cross beam 1, as shown in fig. 1-9, a frame pier connected with a concrete column through a steel beam 1 comprises the steel beam 1 and the pier column 2, a steel-concrete joint section 4 is arranged at the joint of the steel beam 1 and the pier column 2, the steel-concrete joint section 4 comprises a top steel plate 6, a bottom steel plate 7 and a vertical plate 8, a shear nail 10, a stiffening rib 14 and a rib plate 11 are arranged on the steel-concrete joint section, a pier column transition section 21 is arranged above the pier column 2, a main rib 3 and a reinforcing rib 31 extend out of the top of the pier column 2 by a preset length, during assembly, the main reinforcement 3 and the reinforcing rib 31 on the pier stud 2 penetrate the preformed hole 71 on the bottom steel plate 7 of the steel beam 1, then the post-cast concrete 5 is poured in the pouring hole 61 on the top steel plate 6, and maintaining the post-cast concrete 5, and realizing the connection between the steel beam 1 and the pier stud 2 after the post-cast concrete 5 is maintained.
Specifically, the top steel plate 6 is positioned on the top surface of the steel-concrete combined section 4, and the top steel plate 6 is provided with a pouring hole 61 and an exhaust hole 62; the pouring holes 61 are used for pouring the post-cast concrete 5, and the exhaust holes 62 ensure exhaust in the construction process of the post-cast concrete 5 so as to ensure the pouring compactness.
Specifically, the bottom steel plate 7 is located at the bottom of the reinforced concrete combining section 4, a plurality of preformed holes 71 are formed in the bottom steel plate 7, the bottom steel plate 7 is divided into a plurality of strip-shaped steel plate areas through the preformed holes 71, the size of each preformed hole 71 is larger than the outer contour of the main rib 3, and a rib plate 11 is arranged on each strip-shaped steel plate area for reinforcement; the cross beam bottom steel plate 7 can be ensured to provide tensile capacity so as to bear the bending moment of the steel-concrete combined section 4.
Specifically, the riser 8 is located all around that steel-concrete combined section 4 and pier stud 2 meet, sets up riser 8 in pier stud 2 center department simultaneously, and this department riser 8 corresponds with the interim support 16 in the pier stud 2, guarantees that steel beam 1 supports on interim support 16 under the dead weight effect, and interim support 16 corresponds with interim support column 15.
Specifically, the transition plate 9 is arranged on the pier stud transition section 21, the transition plate 9 comprises a columnar structure formed by four vertical steel plates in a surrounding mode, the height of the columnar structure is the same as the stacking height of the temporary support columns 15 and the temporary support bases 16, the upper portion of the transition plate 9 is connected with the steel cross beam 1, the lower portion of the transition plate 9 is connected with the top of the pier stud 2 and serves as a construction template of post-cast concrete 5, and the temporary template does not need to be arranged when the post-cast concrete 5 is poured; the transition plate 9 is provided with shear nails 10 and stiffening ribs 14, so that force transmission between the transition plate and the post-cast concrete 5 is ensured, and when the frame pier is stressed, the stress is strengthened.
Specifically, (as shown in fig. 10) temporary support column 15 sets up at pier stud 2 top, temporary support 16 is set up above temporary support column 15, temporary support column 15 and temporary support 16 play the effect of supporting steel crossbeam 1, when steel crossbeam 1 supports on temporary support 16, be articulated between steel crossbeam 1 and pier stud 2, do not transmit the moment of flexure, when setting up the upper portion roof beam body on steel crossbeam 1, the first stage dead weight load of upper portion roof beam body does not produce moment of flexure effect to the basis, only after having constructed casting concrete 5, form just transmit the second stage dead weight after the knot between steel crossbeam 1 and pier stud 2, the moment of flexure that live load etc. produced, consequently, the atress of basis has been greatly reduced, be favorable to the design of basis.
Specifically, the shear nails 10 are dispersedly arranged on the top steel plate 6 and the vertical plate 8, so as to play a role in connecting the steel beam 1 with the post-cast concrete 5; at the joint of the steel beam 1 and the pier stud 2, the shear nails 10 are connected with post-cast concrete, when the steel beam 1 bears vertical force, the vertical force is transmitted to the post-cast concrete 5 through the shear nails 10, and when the steel beam 1 bears bending moment, load is transmitted to the post-cast concrete 5 through the tensile strength of the shear nails 10 at one side and the compressive strength of the shear nails 10 at the other side; the stiffening ribs 14 are dispersedly arranged on the top steel plate 6 and the vertical plate 8 of the steel beam 1 to ensure that the steel plates have enough stability, and the stiffening ribs 14 are connected with the post-cast concrete 5 at the joint of the steel beam 1 and the pier stud 2; the connection between the steel plate and the post-cast concrete 5 can be reinforced.
Specifically, the rib plates 11 are arranged on a top steel plate 6, a vertical plate 8 and a bottom steel plate 7 of the steel beam 1, a plurality of rib plates 11 are arranged along the inner contour of the steel beam 1, integrity and stability between the steel plates are guaranteed, a plurality of reinforcing steel bar holes 12 are arranged on the rib plates 11, and perforated reinforcing steel bars 13 penetrate through the reinforcing steel bar holes 12 and are welded and fixed with the vertical plates 8 on two sides; the rib plate 11, the perforated steel bar 13 and the post-cast concrete 5 in the steel bar hole 12 form a shear key, when the top steel plate 6, the vertical plate 8 and the bottom steel plate 7 on the steel beam 1 are stressed, tensile resistance is provided jointly through the shear resisting action of the perforated steel bar 13 and the post-cast concrete 5 poured in the perforated steel bar 13 and the steel bar hole 12, when the vertical plate 8 bears bending moment or the top steel plate 6 and the bottom steel plate 7 bear bending moment, the connection strength between the steel beam 1 and the post-cast concrete 5 is improved obviously through the joint stress of the shear nails 10, the rib plate 11 and the perforated steel bar 13.
Specifically, the pier stud 2 is prefabricated or cast in place, the pier stud transition section 21 is arranged at the top of the pier stud 2, the outer contour shape of the pier stud transition section 21 is the same as the shape of the transition plate 9 of the steel beam 1, the outer contour size of the pier stud transition section 21 is larger than that of other positions of the pier stud 2, connection between the pier stud transition section and the transition plate 9 is guaranteed, meanwhile, the end face of the pier stud transition section can be used as a bottom formwork of post-cast concrete 5, and a temporary formwork does not need to be erected during pouring.
Specifically, the reinforcing bar of main muscle 3 adoption pier stud 2 self configuration, reinforcing rib 31 anchor is inside pier stud 2, it has sufficient anchor length to guarantee that main muscle 3 and reinforcing rib 31 stretch into reinforced concrete combining section 4, when steel crossbeam 1 atress, pour into concrete 5 through the back and anchor and pass power to wearing the bond parcel of main muscle 3 and reinforcing rib 31 wherein, thereby guarantee and 2 load transmission within a definite time of pier stud, reinforcing rib 31 plays the effect that increases bending resistance and shear capacity, and simultaneously, preformed hole 71 sets up sufficient trompil space, main muscle 3 and reinforcing rib 31 penetrate conveniently, the greatly reduced construction degree of difficulty.
Specifically, the post-cast concrete 5 is one of high-strength concrete, Ultra High Performance Concrete (UHPC) or self-compacting shrinkage-compensated concrete.
The construction method corresponding to the frame pier connected with the concrete column through the steel beam 1 in the embodiment of the invention comprises the following steps:
a construction method of a frame pier connected with a concrete column through a steel beam 1 comprises the following steps:
step one, pier stud 22 construction, and steel beam 11 prefabrication is completed.
And step two, constructing a temporary support column 1515 on the top of the pier column 22, and installing a temporary support 1616 on the temporary support column 1515.
And step three, hoisting the steel beam 11, aligning the steel beam 11 with the pier stud 22, and penetrating the main ribs 33 and the reinforcing ribs 3131 on the pier stud 22 into the reserved holes 7171 on the bottom steel plate 77.
And fourthly, supporting the steel beam 11 through the temporary support 1616, and erecting a beam body above the steel beam 11.
And step five, pouring the post-cast concrete 55 from the pouring hole 6161 on the top steel plate 66 to finish the construction of the steel-concrete combined section 44.
And sixthly, pouring concrete 55 after maintenance, and finishing construction.
The frame pier connected with the concrete column through the steel cross beam 1 and the construction method have the following advantages: by arranging the steel beam 1, the weight of the beam is reduced, the beam is convenient to transport and hoist, the construction speed is high, and the construction interference is small; through the arrangement of the shear nails 10, the perforated steel bars 13, the shear keys and other structures in the steel beam 1, the strength of the connecting part is obviously increased, the mutual transmission of the force between the steel beam 1 and the post-cast concrete 5 is ensured, the load transmission path is clear, and the quality is easy to ensure; the assembly construction tolerance between the steel beam 1 and the pier stud 2 is large, the assembly is simple and quick, the main reinforcement 3 of the pier stud 2 is easy to penetrate into the steel beam 1, rigid connection is formed between the main reinforcement 3 and the steel beam 1 through post-pouring concrete, the stress is safe, and the problem of cooperative stress between the steel beam 1 and the pier stud 2 is solved; the steel beam 1 and the pier stud 2 are connected in stages, namely the steel beam 1 and the pier stud 2 are hinged and then are solidified, the steel beam 1 and the pier stud 2 are connected through the temporary support 16, an upper beam body is erected, and then the steel beam 1 and the pier stud 2 are solidified; thereby avoiding the foundation from being stressed greatly due to one-time consolidation and solving the problem of difficult foundation design.
Example two
As shown in fig. 11, for a frame pier connected with a concrete column through a steel beam 1 according to a second embodiment of the present invention, when the stress on the foundation is not controlled, a primary consolidation mode may be adopted between the steel beam 1 and the pier column 2, including the connection features of the first embodiment except for the transition plate 9, the temporary support columns 15 and the temporary supports 16 and the connection features associated with the transition plate 9, the temporary support columns 15 and the temporary supports 16, which are not described herein again; during construction, the splicing seams 17 are laid at the tops of the pier studs 2, the splicing seams 17 are made of high-strength mortar, the steel beam 1 is hoisted and placed on the splicing seams 17 during construction, the main ribs 3 and the reinforcing ribs 31 penetrate into the steel-concrete combined section 4, the concrete 5 is poured after pouring, and the assembly between the steel beam 1 and the pier studs 2 is completed.
The construction method corresponding to the frame pier connected with the concrete column through the steel beam 1 in the second embodiment of the invention comprises the following steps:
step one, constructing a pier stud 2, and prefabricating and assembling a steel beam 1;
secondly, paving a splicing seam 17 on the top surface of the pier stud 2 without arranging the temporary support column 15 and the temporary support 16;
step three, hoisting the steel beam 1, aligning the steel beam 1 with the pier stud 2, and penetrating the main ribs 3 and the reinforcing ribs 31 on the pier stud 2 into the preformed holes 71 on the bottom steel plate 7;
fourthly, supporting the steel beam 1 through the splicing seams 17, and erecting a beam body above the steel beam 1;
pouring concrete 5 from the pouring holes 61 on the top steel plate 6 to finish the construction of the steel-concrete combined section 4;
and step six, pouring concrete 5 after maintenance, and finishing construction.
The frame pier connected with the concrete column through the steel cross beam 1 and the construction method have the following advantages: by arranging the steel beam 1, the weight of the beam is reduced, the beam is convenient to transport and hoist, the construction speed is high, and the construction interference is small; through the arrangement of the shear nails 10, the perforated steel bars 13, the shear keys and other structures in the steel beam 1, the strength of the connecting part is obviously increased, the mutual transmission of the force between the steel beam 1 and the post-cast concrete 5 is ensured, the load transmission path is clear, and the quality is easy to ensure; the assembly construction tolerance between the steel beam 1 and the pier stud 2 is large, the assembly is simple and quick, the main reinforcement 3 of the pier stud 2 is easy to penetrate into the steel beam 1, rigid connection is formed between the main reinforcement 3 and the steel beam 1 through post-pouring concrete, the stress is safe, and the problem of cooperative stress between the steel beam 1 and the pier stud 2 is solved; when the foundation stress is not controlled, a one-time consolidation form is adopted between the steel beam 1 and the pier stud 2, the transition plate 9, the temporary support column 15 and the temporary support 16 are not arranged, the splicing seam 17 is laid at the top of the pier stud 2 during construction, high-strength mortar is adopted for the splicing seam 17, the steel beam 1 is hoisted and placed on the splicing seam 17 during construction, the main rib 3 and the reinforcing rib 31 penetrate into the steel-concrete combined section 4, the post-pouring concrete 5 is poured again, the assembly between the steel beam 1 and the pier stud 2 is completed, the assembly speed is high, the stress is reliable, the cost is low, and the foundation stress can be reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a frame pier through steel crossbeam and concrete column connection which characterized in that: including steel beam and pier stud, the steel beam with the pier stud department of meeting establishes the steel-concrete section that combines, the steel-concrete section that combines includes top steel sheet, end steel sheet and riser, set up shear force nail, stiffening rib and floor in the steel-concrete structure section, the pier stud top sets up the pier stud changeover portion, and main muscle and strengthening rib stretch out the pier stud top and predetermine length, and during the assembly, main muscle and strengthening rib on the pier stud penetrate the steel beam the preformed hole on the end steel sheet, again pour the post-cast concrete in the pouring hole on the top steel sheet, right post-cast concrete carries out the maintenance, treats realize after the post-cast concrete maintenance the steel beam with be connected between the pier stud.
2. A frame pier connected with a concrete column through a steel beam according to claim 1, wherein: the top steel plate is positioned on the top surface of the reinforced concrete combining section, and the top steel plate is provided with a filling hole and an exhaust hole.
3. A frame pier connected with a concrete column through a steel beam according to claim 1, wherein: the end steel sheet is located the bottom surface of reinforced concrete joint section, set up a plurality of preformed holes on the end steel sheet, it is a plurality of the preformed hole will a plurality of bar steel sheet regions are cut apart into to the end steel sheet, every the size in preformed hole is greater than the outline of main muscle, every all be equipped with the floor in the bar steel sheet region and strengthen.
4. A frame pier connected with a concrete column through a steel beam according to claim 1, wherein: the riser is located the reinforced concrete joint section with all around the pier stud meets, simultaneously pier stud center department sets up the riser, this department riser with temporary support in the pier stud corresponds, temporary support corresponds with temporary support post.
5. A framed pier connected to a concrete column through a steel beam according to claim 4, wherein: the pier stud transition section is provided with a transition plate, the transition plate comprises a columnar structure formed by four vertical steel plates in a surrounding mode, the height of the columnar structure is equal to the stacking height of the temporary support column and the temporary support, the upper portion of the transition plate is connected with the steel cross beam, the lower portion of the transition plate is connected with the top of the pier stud, and the transition plate is provided with shear nails and stiffening ribs.
6. A frame pier connected with a concrete column through a steel beam according to claim 1, wherein: the shear nails are dispersedly arranged on the top steel plate and the vertical plate of the steel beam; the stiffening ribs are dispersedly arranged on the top steel plate and the vertical plate of the steel beam;
and at the joint of the steel beam and the pier stud, the shear nails and the stiffening ribs are connected with post-cast concrete.
7. A frame pier connected with a concrete column through a steel beam according to claim 1, wherein: the rib plates are arranged on the top steel plate, the vertical plates and the bottom steel plate of the steel beam, a plurality of rib plates are arranged along the inner contour of the steel beam, a plurality of reinforcing steel bar holes are formed in the rib plates, and the perforated reinforcing steel bars penetrate through the reinforcing steel bar holes and are welded and fixed with the vertical plates on two sides.
8. A frame pier connected with a concrete column through a steel beam according to claim 1, wherein: the pier column is prefabricated or cast in place, a pier column transition section is arranged at the top of the pier column, the outer contour shape of the pier column transition section is the same as that of a transition plate of the steel cross beam, and the outer contour size of the pier column transition section is larger than that of other positions of the pier column;
the main reinforcement adopts the reinforcing bar of pier stud self configuration, the strengthening rib anchor is in inside the pier stud.
9. The frame pier connected with the concrete column through the steel cross beam as claimed in claim 1, wherein a form of one-time consolidation is adopted between the steel cross beam and the pier column, a transition plate, a temporary support column and a temporary support are not arranged, a splicing seam is laid at the top of the pier column during construction, and high-strength mortar is adopted as the splicing seam.
10. A construction method of a frame pier connected with a concrete column through a steel cross beam is characterized by comprising the following steps:
firstly, pier stud construction, namely prefabricating and assembling a steel cross beam;
step two, constructing a temporary support column at the top of the pier column, and mounting a temporary support on the temporary support column;
or paving splicing seams on the top surfaces of the piers without arranging temporary support columns and temporary supports;
step three, hoisting the steel beam, aligning the steel beam with the pier stud, and penetrating the main ribs and the reinforcing ribs on the pier stud into the reserved holes in the bottom steel plate;
fourthly, supporting the steel beam through a temporary support, and erecting a beam body above the steel beam;
or, supporting the steel beam through the splicing seam, and erecting a beam body above the steel beam;
pouring post-cast concrete from the pouring holes in the top steel plate to complete the construction of the steel-concrete combined section;
and step six, pouring concrete after maintenance, and finishing construction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010606634.7A CN111827084A (en) | 2020-06-29 | 2020-06-29 | Frame pier connected with concrete column through steel cross beam and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010606634.7A CN111827084A (en) | 2020-06-29 | 2020-06-29 | Frame pier connected with concrete column through steel cross beam and construction method |
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| CN111827084A true CN111827084A (en) | 2020-10-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016420A (en) * | 2021-11-23 | 2022-02-08 | 兴泰建设集团有限公司 | Assembly type construction method for single pier column steel bridge |
| CN114232501A (en) * | 2022-01-18 | 2022-03-25 | 宁波市高等级公路建设管理中心 | Bent cap pier stud integration template structure |
-
2020
- 2020-06-29 CN CN202010606634.7A patent/CN111827084A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016420A (en) * | 2021-11-23 | 2022-02-08 | 兴泰建设集团有限公司 | Assembly type construction method for single pier column steel bridge |
| CN114016420B (en) * | 2021-11-23 | 2024-02-13 | 兴泰建设集团有限公司 | Single pier column steel bridge assembly type construction method |
| CN114232501A (en) * | 2022-01-18 | 2022-03-25 | 宁波市高等级公路建设管理中心 | Bent cap pier stud integration template structure |
| CN114232501B (en) * | 2022-01-18 | 2023-12-12 | 宁波市高等级公路建设管理中心 | Integrated template structure of capping beam pier column |
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