CN115075120A - Continuous beam No. 0 block oblique crossing orthogonal system and construction method thereof - Google Patents
Continuous beam No. 0 block oblique crossing orthogonal system and construction method thereof Download PDFInfo
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- CN115075120A CN115075120A CN202210800453.7A CN202210800453A CN115075120A CN 115075120 A CN115075120 A CN 115075120A CN 202210800453 A CN202210800453 A CN 202210800453A CN 115075120 A CN115075120 A CN 115075120A
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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
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- E01D19/00—Structural or constructional details of bridges
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- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
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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
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- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
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Abstract
The invention discloses a continuous beam No. 0 block oblique crossing orthographic construction system and a construction method thereof, wherein the system comprises a pile foundation, a bearing platform, a pier stud, a temporary consolidation, a formwork structure and a No. 0 block, the pile foundation, the bearing platform, the pier stud and the No. 0 block are sequentially arranged from bottom to top, the formwork structure is used for pouring the No. 0 block, the temporary consolidation and the formwork structure are both arranged on the bearing platform, the top of the temporary consolidation is connected with the No. 0 block in an anchoring manner, the formwork structure is abutted against the formwork structure, the directions of a pile foundation central line, a bearing platform central line, a temporary consolidation central line and a formwork structure central line are the same as the direction of the No. 0 block central line, and an oblique crossing angle is arranged between the pier stud and the No. 0 block. The center line of the pile foundation, the center line of the bearing platform and the center line of the No. 0 block are set to be consistent, the condition of the skew crossing of the No. 0 block in temporary consolidation is met, the engineering calculation amount is reduced, the construction is simplified, the size of the top surface of the bearing platform is increased, an installation foundation is provided for the formwork structure and the skew crossing of the temporary consolidation, the construction procedures are reduced, and the construction cost is reduced.
Description
Technical Field
The invention belongs to the technical field of continuous beam construction, and particularly relates to a continuous beam No. 0 block oblique crossing orthogonal system and a construction method thereof.
Background
In bridge construction, under many conditions, bridge positions are subject to line trends, so that inclined bridges appear in many overpasses and river-crossing bridges, and with the continuous development of times and the continuous improvement of computer levels, the design scheme of oblique beam crossing and oblique pier body crossing is widely applied in the process. The design scheme can reduce the disturbance of the pier to the water flow, increase the width of the channel and facilitate flood discharge; the oblique angle does not exist, so that the box girder only has bending moment and does not generate torque, and the stress of the support is more balanced; compared with an orthogonal bridge, the bridge span is reduced, and the manufacturing cost is saved.
In the design scheme that the oblique crossing of the beam is positively made and the oblique crossing of the pier stud is obliquely made, the support is arranged to be obliquely crossed relative to the pier top cap, and most space of the pier top cap is occupied, so that when a No. 0 block is constructed, the traditional scheme of setting reinforced concrete internal consolidation on the pier top cannot be realized, and only external consolidation can be carried out.
In the river-crossing bridge, pier columns and a river channel are arranged in parallel according to the design scheme, when foundation design is carried out, the direction of a pile foundation of a bearing platform is generally designed to be consistent with the direction of a pier, and in order to ensure that No. 0 blocks are obliquely crossed, the conventional method is to add a foundation outside a main body structure again, so that not only is investment increased, but also the working procedure of No. 0 block construction is increased, and the construction time of the No. 0 block is prolonged; the temporary consolidation outside the No. 0 block can only be consistent with the direction of a pier column, namely the temporary consolidation of the No. 0 block is obliquely done, the construction method can cause uneven stress of the temporary consolidation, because of the existence of an oblique angle, the bending and twisting coupling effect is obvious, the stress is complex, the design and calculation workload is large, and the material waste can be caused, in addition, the traditional temporary consolidation of the No. 0 block is mostly pressed by adopting the modes of steel pipe concrete, concrete columns and the like, the prestressed material is pulled, the consolidation columns of the steel pipe concrete, the concrete columns and the like can not be recycled, a lot of building waste can be generated, the steel waste is caused, and the requirement of green construction can not be met; traditional die carrier structure sets up the basis in the cushion cap outside, satisfies the orthogonal base of 0 number block die carrier structure bevel, then adopts suitable die carrier structure to be under construction, and sets up the basis that satisfies 0 number block die carrier bevel and just do in the cushion cap outside, has not only increased the construction process of 0 number piece, has prolonged the engineering time of 0 number piece, but also can increase the cost, and demolising of basis can also increase building rubbish, unsatisfied green requirement of being under construction.
Disclosure of Invention
The invention aims to provide a continuous beam No. 0 block diagonal orthographic construction system and a construction method thereof, and aims to solve the problems that foundations need to be additionally arranged, working procedures and working hours need to be prolonged when No. 0 block diagonal orthographic construction is carried out, and temporary consolidation columns such as concrete-filled steel tubes and concrete columns are difficult to turn around and waste building materials.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a system is being done to continuous beam No. 0 piece bevel, includes pile foundation, cushion cap, pier stud, concreties temporarily, die carrier structure, template structure and No. 0 piece, pile foundation, cushion cap, pier stud and No. 0 piece set gradually from bottom to top, the template structure is used for pouring of No. 0 piece, concreties temporarily and the die carrier structure all sets up on the cushion cap, concreties temporarily the top and is connected with No. 0 piece anchor, die carrier structure and template structure butt, pile foundation central line, cushion cap central line, concreties temporarily central line, die carrier structure central line and No. 0 piece central line coincidence, set up the bevel angle between pier stud and No. 0 piece.
Furthermore, the temporary concretion comprises upright columns and anchoring steel bars, the upright columns are arranged in two rows and are respectively arranged on the left side and the right side of each pier column, each row of upright columns are arranged at intervals in the transverse bridge direction, and two ends of each upright column are respectively connected with the bearing platform and the No. 0 block through a first connecting piece and a second connecting piece; the anchoring reinforcing steel bars are arranged on the front side and the rear side of the upright post, and the top and bottom ends of the anchoring reinforcing steel bars are respectively connected with the bearing platform and the No. 0 block in an anchoring manner.
Furthermore, each row of upright posts are connected through a connecting rod; the upright post is connected with the pier post through an additional connecting piece, the additional connecting piece comprises an additional rod and an embedded plate, the embedded plate is arranged in the pier post, one end of the additional rod is fixedly connected with the upright post, and the other end of the additional rod is fixedly connected with the embedded plate.
Furthermore, the stand column is a large-diameter hollow seamless steel pipe column, and the anchoring steel bar is a finish rolling threaded steel bar.
Furthermore, each row of upright columns comprises four upright columns which are arranged at intervals, and the upright columns at the two ends are respectively arranged corresponding to the two middle webs of the No. 0 block; the anchoring steel bars are vertically arranged on the front side and the rear side of the upright columns at the two ends, six anchoring steel bars are arranged on each side, the top ends of the anchoring steel bars extend out of the top surface of the No. 0 block, and corrugated pipes are sleeved on the anchoring steel bars in the No. 0 block; and a transverse partition plate is arranged at the position of the No. 0 block corresponding to the anchoring reinforcing steel bar.
Further, the first connecting piece is a flange; the second connecting piece comprises a flange, I-shaped steel and a beam bottom embedded plate, the flange is arranged at the top of the upright post, the bottom end of the I-shaped steel is connected with the flange, and the top end of the I-shaped steel is connected with the beam bottom embedded plate.
Furthermore, the die carrier structure comprises bottom columns, distribution beams and disc buckle supports, wherein the bottom columns are vertically arranged on the bearing platform at intervals, the distribution beams comprise distribution beams in the bridge direction and distribution beams in the transverse bridge direction, the distribution beams in the bridge direction are arranged at the tops of the bottom columns, and the distribution beams in the transverse bridge direction are arranged at positions, corresponding to the bottom columns, of the distribution beams in the bridge direction; the plate buckle support is arranged at the top of the distribution beam, and the top of the plate buckle support is abutted to the template structure.
Furthermore, the distance between the transverse bridge-direction distribution beams is consistent with the distance between the disc buckle support vertical rods along the bridge direction; the adjacent bottom columns are connected through a cross brace.
Further, a permanent support is arranged at the top of the pier stud, and the direction of the center line of the permanent support is the same as that of the center line of the No. 0 block.
A construction method of a continuous beam No. 0 block oblique crossing orthogonal system comprises the following steps,
step one, a design stage:
1) designing a pile foundation and a bearing platform: designing the sizes of the pile foundation and the bearing platform according to the size of the No. 0 block;
2) temporary consolidation design: designing the sizes and the layout positions of the upright posts and the anchoring steel bars according to the construction requirements;
3) the die carrier structural design: designing the sizes and the layout positions of the disc buckle support, the distribution beam and the bottom column according to the construction requirements;
step two, checking and calculating stage: calculating the stress, strength, rigidity and stability of the pile foundation, the bearing platform, the temporary consolidation and the formwork structure;
step three, construction stage:
1) pile foundation and bearing platform construction: the center line of the pile foundation and the center line of the bearing platform are superposed with the center line of the No. 0 block, and flanges and anchoring steel bars are pre-buried when the bearing platform is constructed;
2) pier column construction: an oblique angle is arranged between the pier stud and the No. 0 block, and an embedded plate is arranged on the pier body during pier stud construction;
3) and (3) temporary consolidation construction: hoisting the upright post, welding a connecting rod on the upright post, installing an additional rod, and then lengthening the anchoring steel bar;
4) construction of a formwork structure: installing a bottom column, laying a distribution beam along the bridge direction on the top surface of the bottom column, laying a distribution beam along the bridge direction, and finally erecting a disc buckle support on the distribution beam;
5) and (3) temporary consolidation supplementary construction: fixedly arranging a flange, I-shaped steel and a beam bottom embedded plate of a second connecting piece at the top of the upright post, and then installing a permanent support;
6) construction of No. 0 block: binding the reinforcing steel bars of the No. 0 block, sleeving the corrugated pipe on the anchoring reinforcing steel bars, arranging a transverse partition plate at the position of the No. 0 block corresponding to the anchoring reinforcing steel bars, then installing a template structure, and pouring concrete;
and step four, dismantling the template structure, the mould frame structure and the temporary consolidation.
The invention has the following beneficial effects:
1. the invention provides a continuous beam No. 0 block diagonal orthogonal system and a construction method thereof, which set the center line of a pile foundation and the center line of a bearing platform to be consistent with the center line of the No. 0 block, meet the condition of orthogonal implementation of No. 0 block temporary consolidation, stabilize the temporary consolidation structure, reduce the engineering calculation amount, simplify the construction, increase the size of the top surface of the bearing platform, provide an installation foundation for the formwork structure and the orthogonal implementation of the temporary consolidation diagonal, avoid the additional arrangement of a foundation and the final disassembly step outside the bearing platform in the traditional orthogonal implementation of the No. 0 block diagonal, reduce the construction procedures and reduce the construction cost.
2. According to the oblique crossing positive system of the No. 0 block of the continuous beam and the construction method thereof, provided by the invention, the large-diameter hollow steel pipe and the twisted steel bar are adopted as temporary concretions in the system, so that the temporary concretions can be conveniently recycled, and the material utilization rate is improved; the flange, the I-steel and the beam bottom embedded plate are used as beam bottom adjusting sections, and a permanent support is prevented from being stressed before system conversion; the mould frame system of 'bottom column + disc buckle support' is adopted, the skew of No. 0 block is guaranteed to be done well, time saving and high efficiency are achieved, the manufacturing cost is saved, and the construction safety can be guaranteed.
3. The invention provides a continuous beam No. 0 block oblique crossing orthographic construction system and a construction method thereof.
Drawings
FIG. 1 is a schematic cross-bridge view of an oblique crossing orthogonal system according to the present invention;
FIG. 2 is a schematic forward-bridge view of a cross-crossing forward-acting system according to the present invention;
FIG. 3 is a schematic representation of a temporary consolidated transverse bridging structure according to the present invention;
FIG. 4 is a schematic representation of a temporary consolidated forward-bridge structure according to the present invention;
FIG. 5 is a schematic view of the relative positions of the temporary consolidation and pier stud according to the present invention;
FIG. 6 is a schematic view of the position of the distribution beam along the bridge direction according to the present invention;
FIG. 7 is a schematic view of a distribution beam placement location according to the present invention;
FIG. 8 is a schematic structural view of a first connecting member according to the present invention;
fig. 9 is a schematic structural view of a second connecting member according to the present invention.
In the figure: 1-bearing platform, 2-pier column, 3-temporary consolidation, 31-upright column, 32-anchoring steel bar, 4-formwork structure, 41-bottom column, 42-distribution beam, 43-coil buckle support, 5-formwork structure and No. 6-0 block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
As shown in figures 1-9, the invention provides a continuous beam No. 0 block oblique crossing orthogonal system, which comprises a pile foundation, a bearing platform 1, a pier stud 2, a temporary consolidation 3, a formwork structure 4, a formwork structure 5 and a No. 0 block 6, wherein the pile foundation, the bearing platform 1, the pier stud 2 and the No. 0 block 6 are sequentially arranged from bottom to top, the formwork structure 5 is used for pouring the No. 0 block 6, the temporary consolidation 3 and the formwork structure 4 are both arranged on the bearing platform 1, the top of the temporary consolidation 3 is connected with the No. 0 block 6 in an anchoring manner, the formwork structure 4 is abutted against the formwork structure 5, wherein the directions of a pile foundation central line, a bearing platform 1 central line, a temporary consolidation 3 central line and a formwork structure 4 central line are the same as the direction of the No. 0 block 6, an oblique crossing angle is arranged between the pier stud 2 and the No. 0 block 6, the size of the bearing platform 1 is larger than the design size of a conventional bearing platform 1, and further, in the design scheme that the continuous beam oblique crossing is positively made and the pier stud 2 is obliquely made, the oblique crossing of the temporary consolidation 3 and the formwork structure 4 is realized, the foundation is prevented from being additionally arranged outside the main body structure, and the construction process is simplified.
The bridge direction refers to the direction of the central axis of the bridge, and the transverse bridge direction refers to the direction perpendicular to the central axis of the bridge.
The top of pier stud 2 sets up permanent support, and permanent support central line is the same with the 6 central line directions of No. 0 piece.
The temporary consolidation 3 comprises upright columns 31, anchoring steel bars 32, connecting rods, additional connecting pieces, first connecting pieces and second connecting pieces, wherein the upright columns 31 are arranged in two rows and are respectively arranged at the left side and the right side of the pier column 2, each row of upright columns 31 is transversely arranged in the bridge direction and comprises four columns which are arranged at intervals, and in each row of upright columns 31, the upright columns 31 at the two ends are respectively arranged corresponding to the two middle webs of the No. 0 block 6; the anchoring steel bars 32 are vertically arranged at the front side and the rear side of the upright columns 31 at the two ends, six anchoring steel bars are arranged at each side, the anchoring depth of the bottom ends of the anchoring steel bars 32 and the bearing platform 1 is not less than 300cm, the top ends of the anchoring steel bars extend out of the top surface of the No. 0 block 6, the corrugated pipes are sleeved on the anchoring steel bars 32 in the No. 0 block 6, preferably, the length of each corrugated pipe is 10cm higher than the structural surface of the No. 0 block 6, and cement paste is prevented from entering the corrugated pipes; the upright columns 31 which are sequentially adjacent in the transverse bridge direction are connected into a whole through connecting rods, the connecting rods are welded with the upright columns 31, preferably, the connecting rods are horizontally arranged from top to bottom, the height of the first connecting rod from the top surface of the bearing platform 1 is 8m, and the distance between the second connecting rod and the first connecting rod is 8 m; the additional connecting pieces comprise additional rods and embedded plates, the embedded plates are arranged in the pier stud 2, one end of each additional rod is fixedly connected with the upright post 31, the other end of each additional rod is fixedly connected with the embedded plates, the pier stud 2 and the temporary consolidation 3 are connected into a whole, the integral anti-overturning capacity is enhanced, preferably, each upright post 31 is connected with the pier stud 2 through two groups of additional connecting pieces, the height of the first group of additional connecting pieces from the top surface of the bearing platform 1 is 8m, and the distance between the second additional connecting piece and the first additional connecting piece is 8 m; the first connecting piece is a flange, the flange is preset at the top of the bearing platform 1, and the upright column 31 is connected with the bearing platform 1 through the flange; the second connecting piece comprises a flange, I-shaped steel and a beam bottom embedded plate, the flange of the second connecting piece is arranged at the top of the upright column 31, the bottom end of the I-shaped steel is connected with the flange, and the top end of the I-shaped steel is connected with the beam bottom embedded plate, so that the upright column 31 is connected with the No. 0 block 6.
The upright columns 31 are preferably large-diameter hollow seamless steel pipe columns, the steel pipe columns are made of Q235 materials, the diameter of each steel pipe column is 800mm, the wall thickness of each steel pipe column is 16mm, and the distance between every two adjacent upright columns 31 along the bridge direction is 180cm, 200cm and 180cm in sequence; the anchoring bar 32 is preferably a finish-rolled deformed steel bar having a diameter of 32 mm; the connecting rod is preferably 20# channel steel or I-shaped steel and has the length of 600 cm.
The die carrier structure 4 comprises bottom posts 41, distribution beams 42 and disc buckle brackets 43, the bottom posts 41 are vertically arranged on the bearing platform 1 at intervals, the bottom posts 41 are connected with the bearing platform 1 through flanges, preferably, the adjacent bottom posts 41 are connected through a cross brace, so that the bottom posts 41 are connected into a whole, and the stability of the die carrier structure is enhanced; the distribution beams 42 include distribution beams along the bridge direction, which are disposed on the tops of the bottom pillars 41, and distribution beams along the bridge direction, which are disposed on the positions corresponding to the bottom pillars 41. Preferably, the distribution beam 42 is 40 a-shaped I-steel, the I-steel is arranged in a mode of combining 6m, 9m and 12m, the joints are in butt joint, and the butt joint positions are arranged at the top of the bottom column 41 and the top of the distribution beam along the bridge direction; the dish is buckled support 43 and is set up at distribution beam 42 top, and dish is buckled support 43 top and template structure 5 butt, and the interval of horizontal bridge to distribution beam is unanimous with the interval of dish knot support 43 pole setting in the same direction as the bridge, and preferred 120cm combines together with 90cm, and the dish that corresponds the web position is buckled support 43 pole setting in the same direction as the bridge interval and is 60cm, and the dish that corresponds the cabinet bottom plate position is buckled support 43 pole setting in the same direction as the bridge interval and is 90cm, and standard step is 150cm, and the top step is encrypted and is handled, and the maximum is 100 cm.
The bottom template of the template structure 5 is a wood template, the panel is a phenolic aldehyde film-coated plywood, the secondary keel is 10 multiplied by 10cm square timber, and the main keel is 14# I-steel.
The position of block No. 0 6 corresponding to anchoring reinforcing steel bar 32 is provided with a transverse clapboard, the transverse bridge width of the transverse clapboard is 120cm, the transverse bridge width is 40cm, and the reinforcement of the transverse clapboard is constructed according to drawings.
A construction method of a continuous beam No. 0 block oblique crossing orthographic system comprises the following steps,
step one, design stage
1) Pile foundation, design of cushion cap 1: designing the pile foundation and the bearing platform 1 into oblique crossing and positive making, namely the direction of the center line of the pile foundation and the center line of the bearing platform 1 is consistent with the direction of the center line of the No. 0 block 6, arranging an oblique crossing angle between the pier stud 2 and the No. 0 block, designing the size of the bearing platform 1 according to the size of the No. 0 block 6, and providing a foundation for oblique crossing and positive making of the temporary consolidation 3 and the formwork structure 4;
2) temporary consolidation 3 design: adopting a stand column 31 and an anchoring steel bar 32 as temporary consolidation 3, wherein the stand column 31 is a large-diameter hollow seamless steel pipe column, the anchoring steel bar 32 is finish-rolled deformed steel bar, and the sizes and the arrangement positions of the stand column 31 and the anchoring steel bar 32 are designed according to construction requirements;
3) the die carrier structure 4 is designed: designing a die carrier structure 4 on the basis of the bearing platform 1, wherein the die carrier structure 4 comprises a disc buckle support 43, a distribution beam 42 and a bottom column 41 from top to bottom, and the sizes and the arrangement positions of the disc buckle support 43, the distribution beam 42 and the bottom column 41 are designed according to construction requirements;
step two, checking and calculating stage: using MIDAS software to model, and calculating the stress, strength, rigidity and stability of the pile foundation, the bearing platform 1, the temporary consolidation 3 and the die carrier structure 4;
step three, construction stage
1) Pile foundation and bearing platform 1 construction: the center line of the pile foundation and the center line of the bearing platform 1 are consistent with the center line of the No. 0 block 6 in direction, when the bearing platform 1 is constructed, flanges and anchoring steel bars 32 are pre-embedded, and the flanges are used for fixing the upright columns 31 and the foundation columns 41;
2) and (3) pier stud 2 construction: when the pier stud 2 is constructed, an embedded plate is arranged on the pier body and used for connecting and fixing an additional rod;
3) and (3) temporary consolidation construction: firstly chiseling cement around a flange on a bearing platform 1, then hoisting an upright column 31, adjusting the verticality and the plane position of the upright column 31, connecting the upright column 31 and the flange by using a bolt, welding a connecting rod on the upright column 31, and then arranging an additional rod to enable the upright column 31 and a pier stud 2 to be connected into a whole; then, the anchoring steel bar 32 is lengthened by a special connector;
4) constructing a die carrier structure 4: installing the bottom column 41 of the die carrier structure 4, wherein the installation method of the bottom column 41 is the same as that of the upright column 31, and after the installation of the bottom column 41 is finished, a scissor brace is welded on the bottom column 41; then laying a distribution beam 42, firstly laying a distribution beam along the bridge direction on the top surface of the bottom column 41, then laying a distribution beam along the bridge direction, and finally erecting a disc buckle bracket 43 on the distribution beam 42;
5) and (3) temporary consolidation 3 supplementary construction: the flange, the I-shaped steel and the beam bottom embedded plate of the second connecting piece are fixedly arranged at the top of the upright column 31, then a permanent support is arranged, the flange, the I-shaped steel and the beam bottom embedded plate are jointly used as a beam bottom adjusting section, and the permanent support is ensured not to be stressed before system conversion;
6) construction of No. 0 block 6: binding the steel bars of the No. 0 block 6, sleeving the corrugated pipe on the anchoring steel bar 32 in the No. 0 block 6, arranging a diaphragm plate at the position of the No. 0 block 6 corresponding to the anchoring steel bar 32, then installing a template structure 5, pouring concrete, constructing a continuous beam standard block by a suspension casting method, constructing a side span cast-in-place section by a full-hall support method, and constructing a closure section by a hanging frame method;
step four, dismantling the template structure 5, the die carrier structure 4 and the temporary consolidation 3: and (3) after grouting for 24h in the hole channel of the No. 0 block 6, dismantling the template structure 5 and the die carrier structure 4, and after grouting for 24h in the hole channel of the side span closure section, dismantling the temporary consolidation 3 when the beam body is converted from a double-cantilever state to a single-cantilever state.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. A continuous beam No. 0 block oblique crossing orthogonal system is characterized by comprising a pile foundation, a bearing platform (1), pier columns (2), a temporary consolidation (3), a formwork structure (4), a formwork structure (5) and No. 0 blocks (6), the pile foundation, the bearing platform (1), the pier stud (2) and the No. 0 block (6) are arranged in sequence from bottom to top, the template structure (5) is used for pouring a No. 0 block (6), the temporary consolidation structure (3) and the die carrier structure (4) are both arranged on the bearing platform (1), the top of the temporary consolidation block (3) is connected with a No. 0 block (6) in an anchoring way, the die carrier structure (4) is abutted against the template structure (5), pile foundation central line, cushion cap (1) central line, temporary consolidation (3) central line, die carrier structure (4) central line and No. 0 piece (6) central line coincidence, set up the skew angle between pier stud (2) and No. 0 piece (6).
2. The continuous beam No. 0 block oblique crossing orthographic construction system according to claim 1, wherein the temporary consolidation (3) comprises upright columns (31) and anchoring steel bars (32), the upright columns (31) are arranged in two rows and are respectively arranged on the left side and the right side of each pier column (2), each row of upright columns (31) is arranged at intervals in the transverse bridge direction, and two ends of each upright column (31) are respectively connected with the bearing platform (1) and the No. 0 block (6) through a first connecting piece and a second connecting piece; the anchoring steel bars (32) are arranged on the front side and the rear side of the upright post (31), and the top and the bottom of the anchoring steel bars are respectively connected with the bearing platform (1) and the No. 0 block (6) in an anchoring manner.
3. The continuous beam No. 0 block skew orthogonal system according to claim 2, wherein each row of columns (31) is connected through a connecting rod; the upright post (31) is connected with the pier post (2) through an additional connecting piece, the additional connecting piece comprises an additional rod and an embedded plate, the embedded plate is arranged in the pier post (2), one end of the additional rod is fixedly connected with the upright post (31), and the other end of the additional rod is fixedly connected with the embedded plate.
4. The continuous beam No. 0 block skew orthogonal system according to claim 2, wherein the columns (31) are large-diameter hollow seamless steel pipe columns, and the anchoring bars (32) are finish-rolled threaded bars.
5. The continuous beam No. 0 block skew crossing orthographic system according to claim 2, wherein each row of the upright columns (31) comprises four columns arranged at intervals, and the upright columns (31) at two ends are respectively arranged corresponding to two middle webs of the No. 0 block (6); the anchoring steel bars (32) are vertically arranged on the front side and the rear side of the upright columns (31) at the two ends, six anchoring steel bars are arranged on each side, the top ends of the anchoring steel bars (32) extend out of the top surface of the No. 0 block (6), and corrugated pipes are sleeved on the anchoring steel bars (32) in the No. 0 block (6); and a transverse clapboard is arranged at the position of the No. 0 block (6) corresponding to the anchoring steel bar (32).
6. The continuous beam No. 0 block skew orthogonal system of claim 2, wherein the first connector is a flange; the second connecting piece comprises a flange, I-shaped steel and a beam bottom embedded plate, the flange is arranged at the top of the upright column (31), the bottom end of the I-shaped steel is connected with the flange, and the top end of the I-shaped steel is connected with the beam bottom embedded plate.
7. The continuous beam No. 0 block diagonal orthogonal system according to claim 1, wherein the formwork structure (4) comprises bottom columns (41), distribution beams (42) and disc buckle supports (43), the bottom columns (41) are vertically arranged on the bearing platform (1) at intervals, the distribution beams (42) comprise distribution beams in the bridge direction and distribution beams in the transverse bridge direction, the distribution beams in the bridge direction are arranged at the tops of the bottom columns (41), and the distribution beams in the transverse bridge direction are arranged at positions of the distribution beams in the bridge direction corresponding to the bottom columns (41); the coiling buckle bracket (43) is arranged at the top of the distribution beam (42), and the top of the coiling buckle bracket is abutted against the template structure (5).
8. The continuous beam No. 0 block diagonal orthogonal system as claimed in claim 7, wherein the spacing of the transverse bridge-direction distribution beams is consistent with the spacing of the vertical rods of the coil buckle bracket (43) along the bridge direction; the adjacent bottom columns (41) are connected through a cross brace.
9. The continuous beam No. 0 block oblique crossing orthographic system according to claim 1, wherein a permanent support is arranged at the top of the pier column (2), and the direction of the center line of the permanent support is the same as that of the center line of the No. 0 block (6).
10. The construction method of the continuous beam No. 0 block cross-linked orthogonal system according to any one of claims 1 to 9, characterized by comprising the steps of,
step one, a design stage:
1) pile foundation and bearing platform (1) design: designing the sizes of the pile foundation and the bearing platform (1) according to the size of the No. 0 block (6);
2) temporary consolidation (3) design: designing the sizes and the layout positions of the upright columns (31) and the anchoring steel bars (32) according to construction requirements;
3) the die carrier structure (4) is designed: designing the sizes and the layout positions of the coiling buckle bracket (43), the distribution beam (42) and the bottom column (41) according to construction requirements;
step two, checking and calculating stage: calculating the stress, strength, rigidity and stability of the pile foundation, the bearing platform (1), the temporary consolidation (3) and the die carrier structure (4);
step three, construction stage:
1) pile foundation and bearing platform (1) construction: the center line of the pile foundation, the center line of the bearing platform (1) and the center line of the No. 0 block (6) are superposed, and a flange and an anchoring steel bar (32) are pre-buried when the bearing platform (1) is constructed;
2) constructing the pier column (2): an oblique angle is arranged between the pier stud (2) and the No. 0 block (6), and an embedded plate is arranged on the pier body when the pier stud (2) is constructed;
3) and (3) construction of temporary consolidation: hoisting the upright post (31), welding a connecting rod on the upright post (31), installing an additional rod, and then lengthening the anchoring steel bar (32);
4) constructing a die carrier structure (4): installing a bottom column (41), then laying a distribution beam (42), laying a distribution beam along the bridge direction on the top surface of the bottom column (41), then laying a distribution beam along the bridge direction, and finally erecting a disc buckle support (43) on the distribution beam (42);
5) and (3) supplementary construction of temporary consolidation: fixedly arranging a flange, I-shaped steel and a beam bottom embedded plate of a second connecting piece at the top of the upright column (31), and then installing a permanent support;
6) construction of No. 0 block (6): binding the steel bars of the No. 0 block (6), sleeving the corrugated pipe on the anchoring steel bar (32), arranging a transverse partition plate at the position of the No. 0 block (6) corresponding to the anchoring steel bar (32), then installing a template structure (5), and pouring concrete;
and fourthly, dismantling the template structure (5), the die carrier structure (4) and the temporary consolidation structure (3).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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