CN210621492U - Deck-type box type arch bridge arch ring bottom plate pressing die structure - Google Patents
Deck-type box type arch bridge arch ring bottom plate pressing die structure Download PDFInfo
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- CN210621492U CN210621492U CN201921368386.6U CN201921368386U CN210621492U CN 210621492 U CN210621492 U CN 210621492U CN 201921368386 U CN201921368386 U CN 201921368386U CN 210621492 U CN210621492 U CN 210621492U
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Abstract
The utility model discloses a bottom plate die structure of a deck box type arch bridge arch ring, which comprises a bottom template positioned at the bottom of the arch ring to be constructed, two side templates symmetrically arranged at the left and the right, and a die pressing mechanism arranged above the bottom template, wherein the die pressing mechanism comprises a plurality of rows of die pressing plates, and each row of die pressing plates is positioned between two adjacent webs; each row of die plates comprises a plurality of die plates arranged from front to back, each die plate comprises a plurality of die plate units arranged from front to back, and each die plate unit comprises an upper pressing plate, a left side die plate, a right side die plate, a front end die plate and a rear end die plate. The utility model has the advantages of reasonable design and use easy and simple to handle, excellent in use effect, adopt multiseriate die pressing board to constitute die pressing mechanism, reserve between the die pressing board unit around in every die pressing board and have the mouth of pouring, can accomplish the concrete placement process of arch ring bottom plate portably, fast to reserve to have the mouth of pouring and be convenient for vibrate the concrete closely knit, can effectively ensure the concrete placement quality of arch ring bottom plate.
Description
Technical Field
The utility model belongs to the technical field of the construction of deck type arch bridge, concretely relates to deck type box arch bridge encircles circle bottom plate moulding-die structure.
Background
The deck arch bridge is a bridge with bridge deck set over the main bearing structure of the bridge span, and the arch abutment transfers the thrust of the end of the arch rib (also called arch end) to the component of the bedrock and is located at the joint between the two ends of the arch bridge and the bedrock. The abutments used to support the ribs are permanent abutments which are typically reinforced concrete structures supported on bedrock. When a deck box type arch bridge with the arch ribs being reinforced concrete box girders is constructed, the arch ribs are usually cast-in-place by adopting steel arches which are pre-erected in place; and after the arch rib is cast and molded, dismantling the steel arch frame.
However, at present, when the steel arch frame is adopted to carry out pouring construction on the arch rib, the construction operation is relatively random, a set of unified and standard construction method is not provided, and when the arch rib is constructed, the construction operation is relatively random, so that the pouring construction quality of the arch rib concrete cannot be ensured. Especially when the arch rib is of a box-type structure, the concrete pouring difficulty of the bottom plate of the arch rib is high, especially when the slope of the main arch ring is steep, because the impact force is high in the concrete pouring process and the concrete cannot be retained on the bottom plate, the poured concrete can flow to the arch springing due to the dead weight, a compression template needs to be arranged on the upper portion of the top surface of the bottom plate of the arch rib, and the concrete can be effectively prevented from flowing to the arch springing to move. Therefore, a top-loading type box type arch bridge arch ring bottom plate pressing die structure which is simple in structure, reasonable in design, easy and convenient to use and operate and good in using effect is needed to be designed, the concrete pouring process of the top-loading type box type arch bridge arch ring bottom plate can be simply and quickly completed, concrete can be effectively prevented from flowing to one side of an arch foot in the pouring process, a pouring opening is reserved, concrete can be conveniently vibrated compactly, and the concrete pouring quality of the arch ring bottom plate can be effectively guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem lie in not enough to among the above-mentioned prior art, a bolster box arch bridge encircles circle bottom plate moulding-die structure is provided, a structure is simple, reasonable in design and use easy and simple to handle, excellent in use effect, adopt multiseriate die pressing plate to constitute die pressing mechanism, and every die pressing plate all adopts by preceding a plurality of die pressing plate units to laying after to, it has the pouring mouth to reserve between the front and back die pressing plate unit, can be simple and convenient, accomplish the concrete placement process of bolster box arch bridge arch circle bottom plate fast, can prevent effectively that the in-process concrete from flowing to hunch foot one side of pouring, and reserve and to have the pouring mouth and be convenient for vibrate the concrete closely knit, can effectively ensure the concrete placement quality of arch circle bottom plate.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a deck formula box arched bridge encircles circle bottom plate moulding-die structure which characterized in that: the construction method comprises a bottom template positioned at the bottom of a constructed arch ring, two side templates symmetrically arranged at the left and right sides and a die pressing mechanism arranged above the bottom template, wherein the die pressing mechanism is positioned between the two side templates; the bottom template is an arched template, the two side templates are vertically arranged and supported on the bottom template;
the constructed arch ring is an arch rib of the constructed deck arch bridge and is arranged along the longitudinal bridge direction, and the arch rib is a reinforced concrete arch ring and is a box girder; the construction arch ring comprises a bottom plate, a top plate positioned right above the bottom plate, N webs distributed on the bottom plate from left to right and a plurality of transverse partition plates distributed on the bottom plate from front to back, wherein the bottom plate, the top plate and the webs are all reinforced concrete plates, and the transverse partition plates are concrete plates; wherein N is a positive integer and N is not less than 3; the bottom plate and the top plate are both arched, the webs and the diaphragm plates are supported between the bottom plate and the top plate, the webs are identical in structure and size and are arranged along the longitudinal bridge direction, the webs are arranged in the vertical direction, the web which is positioned at the leftmost side in the webs is a left-side web, the web which is positioned at the rightmost side in the webs is a right-side web, all webs except the left-side web and the right-side web in the constructed arch ring are middle webs, and the number of the middle webs in the constructed arch ring is N-2; the transverse partition plates are all arranged along the transverse bridge direction and are all arranged in the vertical direction, and each transverse partition plate is connected between the left web plate and the right web plate; each diaphragm is divided into N-1 diaphragm segments by N-2 middle webs, and each diaphragm segment is positioned between two adjacent webs; the cavity between every two adjacent webs is divided into a plurality of pouring cavities from front to back through a plurality of diaphragm plate sections, and each pouring cavity is located between every two diaphragm plate sections adjacent to the front and the back; chamfers are arranged between each web plate and the bottom plate and between each diaphragm plate segment and the bottom plate;
the die pressing mechanism comprises N-1 rows of die pressing plates, and each row of die pressing plates is positioned between two adjacent webs; each row of the pressing template comprises a plurality of pressing templates which are arranged on the same vertical surface from front to back, each pressing template is positioned in one pouring cavity, and one pressing template is arranged in each pouring cavity;
each die plate comprises a plurality of die plate units which are arranged in the same pouring cavity from front to back, the transverse bridge widths of the plurality of die plate units are the same and are uniformly distributed on the same vertical surface, a pouring opening is reserved between every two adjacent die plate units, and the pouring opening is a gap between every two adjacent die plate units;
each template pressing unit comprises an upper pressing plate, a left side template, a right side template, a side template and a front end template, wherein the left side template and the right side template are symmetrically arranged above two sides of the upper pressing plate, the front end template and the rear end template are arranged above two ends of the upper pressing plate, the two side templates are arranged along a longitudinal bridge direction, and the two end templates are arranged along a transverse bridge direction; the upper pressing plate is arched and is formed by bending a rectangular straight template, and the upper pressing plate is a forming template for forming the upper surface of the bottom plate at the arranged position; the side templates and the end templates are both bending templates, and each bending template comprises a chamfer forming template for forming a chamfer and an upper forming template connected to the upper part of the chamfer forming template; the chamfering forming template and the upper forming template are straight templates, the chamfering forming template is an isosceles trapezoid template, the width of the isosceles trapezoid template is gradually increased from bottom to top, the upper forming template is a rectangular template, and the width of the upper forming template is the same as that of the upper part of the chamfering forming template connected with the upper forming template; the upper forming template in the side templates is a forming template for forming the side wall of the web plate, and the upper forming template in the end template is a forming template for forming the side wall of the diaphragm plate segment;
the four upper forming templates in each template pressing unit are connected into a cubic template which is vertically arranged, and the four chamfer forming templates in each template pressing unit are connected into a quadrangular frustum-shaped template.
The arch ring bottom plate die structure of the deck box type arch bridge is characterized in that: a bottom plate reinforcement cage is arranged in the bottom plate and comprises a plurality of longitudinal reinforcements, the longitudinal reinforcements are arranged on the same arch surface from left to right, and the longitudinal reinforcements are arranged along the longitudinal bridge direction;
the upper pressing plate of each pressing template unit is connected with the longitudinal steel bars through a plurality of hooks, the hooks are located below the connected upper pressing plate, the upper portion of each hook is fixed on the connected upper pressing plate, and the lower portion of each hook is hooked on one longitudinal steel bar.
The arch ring bottom plate pressing die structure of the deck box type arch bridge is characterized in that: the hook is a steel bar hook formed by bending a steel bar.
The arch ring bottom plate pressing die structure of the deck box type arch bridge is characterized in that: every the upper portion of crotch all stretches out to the top board top of connecting, it has a plurality of through-holes that supply crotch upper portion to wear out to open on the top board, every stop nut is all installed on crotch upper portion, stop nut is located the top board top.
The arch ring bottom plate pressing die structure of the deck box type arch bridge is characterized in that: and N is 4.
The arch ring bottom plate pressing die structure of the deck box type arch bridge is characterized in that: the bottom template is composed of a plurality of bottom templates, the bottom templates are all arched templates and are arranged from left to right along a transverse bridge, the bottom templates are the same in length and are formed by bending a rectangular straight template, the transverse width of each bottom template is 7-12 m, the bottom templates are arranged in parallel, the width of a gap between every two adjacent bottom templates is 1-2 m, and a sealing layer is arranged in the gap between every two adjacent bottom templates.
The arch ring bottom plate pressing die structure of the deck box type arch bridge is characterized in that: the bottom template is a bamboo plywood, and the side templates are steel templates.
The arch ring bottom plate pressing die structure of the deck box type arch bridge is characterized in that: the bending type template is formed by bending a rectangular steel plate, and the chamfer forming template is an inclined plate which is gradually inclined inwards from top to bottom.
The arch ring bottom plate pressing die structure of the deck box type arch bridge is characterized in that: the upper pressure plate is a steel plate.
The arch ring bottom plate pressing die structure of the deck box type arch bridge is characterized in that: the height of the upper forming template is 8 cm-12 cm.
Compared with the prior art, the utility model has the following advantage:
1. simple structure, reasonable in design and input construction cost are lower.
2. The adopted die pressing plate unit is simple in structure, reasonable in design, simple and convenient to machine and manufacture and low in machining cost, the die pressing plate unit comprises an upper pressing plate, a left side die plate, a right side die plate, a front end die plate and a rear end die plate, the side die plates and the end die plates are all bent, and bottom sections and chamfers of web plates and diaphragm plate sections can be synchronously poured.
3. The die plate unit is fixed on the bottom plate reinforcement cage by the hooks, so that the die plate unit is simple and convenient to fix, the later-stage detachment of the die plate unit is simple and convenient, and the later-stage detachment of the adopted hooks is not required.
4. The use and operation are simple and convenient, the use effect is good, the die pressing mechanism is formed by adopting a plurality of rows of die pressing plates, each die pressing plate adopts a plurality of die pressing plate units which are arranged from front to back, a pouring opening is reserved between the front die pressing plate unit and the rear die pressing plate unit, the concrete pouring process of the arch ring bottom plate of the deck box type arch bridge can be simply, conveniently and quickly finished, the concrete can be effectively prevented from flowing to one side of an arch foot in the pouring process, the pouring opening is reserved, the concrete can be conveniently and compactly vibrated, and the concrete pouring quality of the arch ring bottom plate can be effectively ensured.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic view of the transverse bridge structure of the die pressing mechanism of the present invention.
Fig. 2 is a schematic plane layout position diagram of each die plate unit in the die pressing mechanism of the present invention.
Fig. 3 is a schematic plan view of the die plate unit of the present invention.
Fig. 4 is the longitudinal bridge of the arch ring and the steel arch frame constructed by the utility model is in a supporting state.
Fig. 5 is a schematic view of the transverse bridge direction supporting state of the arch ring and the steel arch frame under construction of the utility model.
Fig. 6 is the schematic view of the longitudinal bridge direction supporting state of the bottom template and the side templates on the steel arch frame.
Description of reference numerals:
1-steel arch centering; 2, constructing an arch ring; 2-1-a base plate;
2-webs; 2-3-diaphragm plate; 2-4-top plate;
2-5-chamfering; 2-6-longitudinal steel bars; 2-7-lower horseshoe;
3-a die plate unit; 3-1-upper press plate; 3-2-side form;
3-end template; 3-4-chamfering the molding template; 3-5-upper molding template;
3-6-hook; 3-7-limit nut; 3-8-pouring openings;
4-bottom template; 5, side templates; 6-permanent support.
Detailed Description
As shown in fig. 1 and 2, the present invention comprises a bottom form 4 located at the bottom of the arch ring 2 to be constructed, two side forms 5 symmetrically arranged at the left and right sides, and a compression molding mechanism arranged above the bottom form 4, wherein the compression molding mechanism is located between the two side forms 5; the bottom template 4 is an arched template, the two side templates 5 are vertically arranged and supported on the bottom template 4;
with reference to fig. 4 and 5, the constructed arch ring 2 is an arch rib of the constructed deck arch bridge and is arranged along the longitudinal bridge direction, and the arch rib is a reinforced concrete arch ring and is a box girder; the constructed arch ring 2 comprises a bottom plate 2-1, a top plate 2-4 positioned right above the bottom plate 2-1, N webs 2-2 arranged on the bottom plate 2-1 from left to right and a plurality of transverse partition plates 2-3 arranged on the bottom plate 2-1 from front to back, wherein the bottom plate 2-1, the top plate 2-4 and the webs 2-2 are all reinforced concrete plates, and the transverse partition plates 2-3 are concrete plates; wherein N is a positive integer and N is not less than 3; the bottom plate 2-1 and the top plate 2-4 are both arched, the multiple webs 2-2 and the multiple diaphragm plates 2-3 are all supported between the bottom plate 2-1 and the top plate 2-4, the multiple webs 2-2 are all the same in structure and size and are all arranged along a longitudinal bridge direction, the multiple webs 2-2 are all arranged in a vertical direction, the web 2-2 located at the leftmost side in the multiple webs 2-2 is a left-side web, the web 2-2 located at the rightmost side in the multiple webs 2-2 is a right-side web, all webs 2-2 except the left-side web and the right-side web in the constructed arch ring 2 are middle webs, and the number of the middle webs in the constructed arch ring 2 is N-2; the transverse partition plates 2-3 are all arranged along the transverse bridge direction and are all arranged in the vertical direction, and each transverse partition plate 2-3 is connected between the left web plate and the right web plate; each diaphragm 2-3 is divided into N-1 diaphragm segments by N-2 middle webs, and each diaphragm segment is positioned between two adjacent webs 2-2; a cavity between two adjacent webs 2-2 is divided into a plurality of pouring cavities from front to back through a plurality of diaphragm plate sections, and each pouring cavity is positioned between two adjacent diaphragm plate sections in front and back; chamfers 2-5 are arranged between each web 2-2 and the bottom plate 2-1 and between each diaphragm plate segment and the bottom plate 2-1;
the die pressing mechanism comprises N-1 rows of die pressing plates, and each row of die pressing plates is positioned between two adjacent webs 2-2; each row of the pressing template comprises a plurality of pressing templates which are arranged on the same vertical surface from front to back, each pressing template is positioned in one pouring cavity, and one pressing template is arranged in each pouring cavity;
each die plate comprises a plurality of die plate units 3 which are arranged in the same pouring cavity from front to back, the transverse bridge widths of the plurality of die plate units 3 are the same and are uniformly distributed on the same vertical surface, a pouring opening 3-8 is reserved between every two adjacent die plate units 3, and the pouring opening 3-8 is a gap between every two adjacent die plate units 3;
with reference to fig. 3, each of the die plate units 3 includes an upper platen 3-1, two left and right side die plates 3-2 symmetrically disposed above two sides of the upper platen 3-1, and two front and rear end die plates 3-3 disposed above two ends of the upper platen 3-1, wherein the two side die plates 3-2 are disposed along a longitudinal bridge direction, and the two end die plates 3-3 are disposed along a transverse bridge direction; the upper pressing plate 3-1 is arched and is formed by bending a rectangular straight template, and the upper pressing plate 3-1 is a forming template for forming the upper surface of the bottom plate 2-1 at the distributed position; the side templates 3-2 and the end templates 3-3 are both bending templates, and each bending template comprises a chamfer forming template 3-4 for forming a chamfer 2-5 and an upper forming template 3-5 connected to the upper part of the chamfer forming template 3-4; the chamfer forming templates 3-4 and the upper forming templates 3-5 are straight templates, the chamfer forming templates 3-4 are isosceles trapezoid templates, the widths of the isosceles trapezoid templates are gradually increased from bottom to top, the upper forming templates 3-5 are rectangular templates, and the widths of the upper forming templates 3-5 are the same as the widths of the upper parts of the chamfer forming templates 3-4 connected with the upper forming templates; an upper forming template 3-5 in the side templates 3-2 is a forming template for forming the side wall of the web 2-2, and an upper forming template 3-5 in the end templates 3-3 is a forming template for forming the side wall of the diaphragm plate segment;
the four upper forming templates 3-5 in each template pressing unit 3 are connected to form a cubic template which is vertically arranged, and the four chamfer forming templates 3-4 in each template pressing unit 3 are connected to form a quadrangular frustum-shaped template.
In this embodiment, each web 2-2 is vertically arranged, and each diaphragm 2-3 is vertically arranged with the bottom plate 2-1 at the connection position.
The two side templates 3-2 in each template pressing unit 3 are respectively positioned above the left side and the right side of the upper pressing plate 3-1, the two end templates 3-3 in each template pressing unit 3 are respectively positioned above the front end and the rear end of the upper pressing plate 3-1, the upper forming templates 3-5 in the side templates 3-2 are vertically arranged, and the upper forming templates 3-5 in the end templates 3-3 are vertically arranged with the upper pressing plate 3-1 connected with the upper forming templates.
In this embodiment, as shown in fig. 4, 5 and 6, the constructed arch ring 2 is constructed by using a steel arch frame 1, the bottom formwork 4 is supported on the steel arch frame 1, the front end and the rear end of the constructed arch ring 2 are respectively supported on a permanent support 6, and the permanent support 6 is a reinforced concrete support. The permanent support 6 is an abutment supporting the rib.
During actual construction, a bottom plate steel reinforcement cage is arranged in the bottom plate 2-1 and comprises a plurality of longitudinal steel reinforcements 2-6, the longitudinal steel reinforcements 2-6 are arranged on the same arch surface from left to right, and the longitudinal steel reinforcements 2-6 are arranged along the longitudinal bridge direction.
In order to be fixed simply and firmly, the upper pressing plate 3-1 of each die plate unit 3 is connected with the longitudinal steel bars 2-6 through a plurality of hooks 3-6, the hooks 3-6 are located below the connected upper pressing plate 3-1, the upper portion of each hook 3-6 is fixed on the connected upper pressing plate 3-1, and the lower portion of each hook 3-6 is hooked on one longitudinal steel bar 2-6.
In this embodiment, the hooks 3 to 6 are reinforcing steel bar hooks formed by bending a reinforcing steel bar.
During actual construction, the die pressing plate unit 3 can be firmly fixed above the bottom plate reinforcement cage by the aid of the hooks 3-6, the die pressing plate unit 3 is guaranteed not to be displaced, and the hooks 3-6 do not need to be detached after pouring construction of the bottom plate 2-1 of the constructed arch ring 2 is completed.
In the embodiment, the upper part of each hook 3-6 extends out of the upper pressure plate 3-1, the upper pressure plate 3-1 is provided with a plurality of through holes for the upper parts of the hooks 3-6 to penetrate through, the upper part of each hook 3-6 is provided with a limiting nut 3-7, and the limiting nut 3-7 is positioned above the upper pressure plate 3-1. In the actual construction process, after the pouring construction of the bottom plate 2-1 of the arch ring 2 to be constructed is completed, the die plate unit 3 can be simply, conveniently and quickly dismantled only by dismantling the limiting nuts 3-7.
In this embodiment, N is 4.
During actual construction, the value of N can be correspondingly adjusted according to specific requirements.
In this embodiment, the bottom template 4 is composed of a plurality of bottom templates, the bottom templates are all arch-shaped templates and are arranged from left to right along a transverse bridge, the bottom templates are all the same in length and are each formed by bending a rectangular straight template, the transverse width of each bottom template is 7-12 m, the bottom templates are all arranged in parallel, the width of a gap between every two adjacent bottom templates is 1-2 m, and a sealing layer is arranged in the gap between every two adjacent bottom templates.
In this embodiment, the bottom form is a bamboo plywood, and the side forms 5 are steel forms. Other types of forms may be used for the base and sideforms 5 in practice.
Before actually laying the bottom template, a plurality of square timbers which are arranged in the transverse bridge direction are laid on the steel arch frame 1, and the line shape of the bottom template 4 is adjusted by supporting wood blocks with uneven thicknesses below the square timbers.
In this embodiment, the sealing layer is a double-sided tape adhered between two adjacent bottom templates or a sealing adhesive coating formed by a sealing adhesive filled in a gap between two adjacent bottom templates.
The bottom formwork 4 is divided into a plurality of bottom formworks, gaps are formed between every two adjacent bottom formworks, the bottom formwork 4 can be effectively prevented from arching and deforming due to uneven stress during concrete pouring, and the gaps between every two adjacent bottom formworks are plugged by the sealing layers, so that slurry leakage can be effectively prevented.
In order to prevent slurry leakage, a layer of waterproof membrane is paved on the inner side wall of the side template 5.
In this embodiment, the bending type formwork is formed by bending a rectangular steel plate, and the chamfer forming formwork 3-4 is an inclined plate which is inclined inwards gradually from top to bottom. The upper pressing plate 3-1 is a steel plate. Therefore, the actual processing and manufacturing are very simple.
As shown in fig. 1, the height of the upper molding board 3-5 is 8cm to 12 cm.
In this embodiment, the height of the upper forming die plate 3-5 is 10 cm. During actual construction, the heights of the upper forming templates 3-5 can be adjusted correspondingly according to specific requirements.
Before the construction of the arch ring 2, the steel arch frame 1 is erected; after the steel arch 1 is erected, a bottom template 4 is laid on the steel arch 1, side templates 5 are respectively erected above the left side and the right side of the bottom template 4, meanwhile, the bottom plate reinforcement cage is bound above the bottom plate 4, a die pressing mechanism consisting of a plurality of die pressing plate units 3 is arranged above the bottom plate reinforcement cage, then the die pressing mechanism is utilized to carry out concrete pouring construction on the bottom plate 2-1 and the lower horse hoof 2-7 of the constructed arch ring 2, the die pressing mechanism can simply, conveniently and quickly complete the concrete pouring process of the arch ring bottom plate of the deck box type arch bridge, concrete can be effectively prevented from flowing to one side of the arch foot of the constructed arch ring 2 in the pouring process, and the pouring openings 3-8 are reserved, so that the concrete can be vibrated compactly, and the concrete pouring quality of the bottom plate 2-1 of the constructed arch ring 2 can be effectively ensured. Wherein the bottom section of each web 2-2 and the chamfer 2-5 connected thereto each constitute a lower horseshoe 2-7, and the bottom section of each diaphragm section and the chamfer 2-5 connected thereto each constitute a lower horseshoe 2-7. The height of the upper forming template 3-5 is 10cm, so that the height of the upper surface of the constructed and formed lower horse shoe 2-7 is 10cm higher than that of the chamfer 2-5 below the upper surface, the concrete pouring quality and the forming quality of each chamfer 2-5 can be ensured, a construction joint formed by pouring concrete twice up and down in each web 2-2 and each diaphragm plate section is positioned at a position 10cm above the chamfer 2-5, the shearing force and the bending moment applied to the position are small, and the construction joint in each web 2-2 and each diaphragm plate section is positioned at a position with small shearing force and small bending moment, so that the forming quality and the stress effect of the constructed and formed web 2-2 and diaphragm plate section can be ensured.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (10)
1. The utility model provides a deck formula box arched bridge encircles circle bottom plate moulding-die structure which characterized in that: the construction method comprises a bottom template (4) positioned at the bottom of a constructed arch ring (2), two side templates (5) symmetrically arranged at the left and right sides and a die pressing mechanism arranged above the bottom template (4), wherein the die pressing mechanism is positioned between the two side templates (5); the bottom template (4) is an arched template, the two side templates (5) are vertically arranged and supported on the bottom template (4);
the constructed arch ring (2) is an arch rib of the constructed deck arch bridge and is arranged along the longitudinal bridge direction, and the arch rib is a reinforced concrete arch ring and is a box girder; the construction arch ring (2) comprises a bottom plate (2-1), a top plate (2-4) located right above the bottom plate (2-1), N webs (2-2) arranged on the bottom plate (2-1) from left to right and a plurality of transverse partition plates (2-3) arranged on the bottom plate (2-1) from front to back, wherein the bottom plate (2-1), the top plate (2-4) and the webs (2-2) are all reinforced concrete plates, and the transverse partition plates (2-3) are concrete plates; wherein N is a positive integer and N is not less than 3; the bottom plate (2-1) and the top plate (2-4) are both arched, a plurality of webs (2-2) and a plurality of diaphragm plates (2-3) are all supported between the bottom plate (2-1) and the top plate (2-4), the webs (2-2) are all the same in structure and size and are all arranged along a longitudinal bridge direction, the webs (2-2) are all arranged vertically, the web (2-2) located at the leftmost side in the webs (2-2) is a left-side web, the web (2-2) located at the rightmost side in the webs (2-2) is a right-side web, all webs (2-2) except the left-side web and the right-side web in the constructed arch ring (2) are middle webs, and the number of the middle webs in the constructed arch ring (2) is N-2; the transverse partition plates (2-3) are all arranged along the transverse bridge direction and are all arranged in the vertical direction, and each transverse partition plate (2-3) is connected between the left web plate and the right web plate; each diaphragm (2-3) is divided into N-1 diaphragm segments by N-2 middle webs, and each diaphragm segment is positioned between two adjacent webs (2-2); a cavity between two adjacent webs (2-2) is divided into a plurality of pouring cavities from front to back through a plurality of diaphragm sections, and each pouring cavity is positioned between two adjacent diaphragm sections in front and back; chamfers (2-5) are arranged between each web plate (2-2) and the bottom plate (2-1) and between each diaphragm plate segment and the bottom plate (2-1);
the die pressing mechanism comprises N-1 rows of die pressing plates, and each row of die pressing plates is positioned between two adjacent webs (2-2); each row of the pressing template comprises a plurality of pressing templates which are arranged on the same vertical surface from front to back, each pressing template is positioned in one pouring cavity, and one pressing template is arranged in each pouring cavity;
each die plate comprises a plurality of die plate units (3) which are arranged in the same pouring cavity from front to back, the transverse bridge widths of the plurality of die plate units (3) are the same and are uniformly distributed on the same vertical surface, a pouring opening (3-8) is reserved between every two adjacent die plate units (3), and the pouring opening (3-8) is a gap between every two adjacent die plate units (3);
each template pressing unit (3) comprises an upper pressing plate (3-1), a left side template (3-2) and a right side template (3-2) which are symmetrically arranged above two sides of the upper pressing plate (3-1), and a front end template (3-3) and a rear end template (3-3) which are symmetrically arranged above two ends of the upper pressing plate (3-1), wherein the two side templates (3-2) are arranged along the longitudinal bridge direction, and the two end templates (3-3) are arranged along the transverse bridge direction; the upper pressing plate (3-1) is arched and is formed by bending a rectangular flat template, and the upper pressing plate (3-1) is a forming template for forming the upper surface of the bottom plate (2-1) at the distributed position; the side templates (3-2) and the end templates (3-3) are both bending templates, and each bending template comprises a chamfer forming template (3-4) for forming a chamfer (2-5) and an upper forming template (3-5) connected to the upper part of the chamfer forming template (3-4); the chamfer forming templates (3-4) and the upper forming templates (3-5) are straight templates, the chamfer forming templates (3-4) are isosceles trapezoid templates, the width of each chamfer forming template is gradually increased from bottom to top, the upper forming templates (3-5) are rectangular templates, and the width of each upper forming template (3-5) is the same as that of the upper part of each chamfer forming template (3-4) connected with each upper forming template; the upper forming template (3-5) in the side templates (3-2) is a forming template for forming the side wall of the web plate (2-2), and the upper forming template (3-5) in the end template (3-3) is a forming template for forming the side wall of the diaphragm plate segment;
the four upper forming templates (3-5) in each template pressing unit (3) are connected into a cubic template which is vertically arranged, and the four chamfer forming templates (3-4) in each template pressing unit (3) are connected into a quadrangular frustum-shaped template.
2. The arch ring bottom plate compression molding structure of the deck box-type arch bridge according to claim 1, wherein: a bottom plate reinforcement cage is arranged in the bottom plate (2-1), the bottom plate reinforcement cage comprises a plurality of longitudinal reinforcements (2-6), the longitudinal reinforcements (2-6) are arranged on the same arch surface from left to right, and the longitudinal reinforcements (2-6) are arranged along the longitudinal bridge direction;
the upper pressing plate (3-1) of each die plate unit (3) is connected with the longitudinal steel bars (2-6) through a plurality of hooks (3-6), the hooks (3-6) are located below the connected upper pressing plate (3-1), the upper portion of each hook (3-6) is fixed on the connected upper pressing plate (3-1), and the lower portion of each hook (3-6) is hooked on one longitudinal steel bar (2-6).
3. The arch ring bottom plate compression molding structure of the deck box-type arch bridge according to claim 2, wherein: the hook (3-6) is a steel bar hook formed by bending a steel bar.
4. The arch ring bottom plate compression molding structure of the deck box-type arch bridge according to claim 3, wherein: the upper portion of each hook (3-6) extends out of the upper pressure plate (3-1) connected with the upper pressure plate, a plurality of through holes for the upper portions of the hooks (3-6) to penetrate out are formed in the upper pressure plate (3-1), a limiting nut (3-7) is installed on the upper portion of each hook (3-6), and the limiting nut (3-7) is located above the upper pressure plate (3-1).
5. The compression-molded structure of the arch ring bottom plate of the deck box-type arch bridge according to any one of claims 1 to 4, wherein: and N is 4.
6. The compression-molded structure of the arch ring bottom plate of the deck box-type arch bridge according to any one of claims 1 to 4, wherein: the bottom template (4) is composed of a plurality of bottom templates, the bottom templates are all arched templates and are arranged from left to right along a transverse bridge, the bottom templates are the same in length and are formed by bending a rectangular straight template, the transverse width of each bottom template is 7-12 m, the bottom templates are arranged in parallel, the width of a gap between every two adjacent bottom templates is 1-2 m, and a sealing layer is arranged in the gap between every two adjacent bottom templates.
7. The arch ring bottom plate compression molding structure of the deck box-type arch bridge according to claim 6, wherein: the bottom template is a bamboo plywood, and the side templates (5) are steel templates.
8. The compression-molded structure of the arch ring bottom plate of the deck box-type arch bridge according to any one of claims 1 to 4, wherein: the bending type template is formed by bending a rectangular steel plate, and the chamfer forming template (3-4) is an inclined plate which is gradually inclined inwards from top to bottom.
9. The compression-molded structure of the arch ring bottom plate of the deck box-type arch bridge according to any one of claims 1 to 4, wherein: the upper pressing plate (3-1) is a steel plate.
10. The compression-molded structure of the arch ring bottom plate of the deck box-type arch bridge according to any one of claims 1 to 4, wherein: the height of the upper molding template (3-5) is 8-12 cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921368386.6U CN210621492U (en) | 2019-08-22 | 2019-08-22 | Deck-type box type arch bridge arch ring bottom plate pressing die structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921368386.6U CN210621492U (en) | 2019-08-22 | 2019-08-22 | Deck-type box type arch bridge arch ring bottom plate pressing die structure |
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| CN210621492U true CN210621492U (en) | 2020-05-26 |
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| CN201921368386.6U Active CN210621492U (en) | 2019-08-22 | 2019-08-22 | Deck-type box type arch bridge arch ring bottom plate pressing die structure |
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