CN115534077A - Construction method of diaphragm plate adjustable template device of curve bridge PC precast beam - Google Patents
Construction method of diaphragm plate adjustable template device of curve bridge PC precast beam Download PDFInfo
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- CN115534077A CN115534077A CN202211467408.0A CN202211467408A CN115534077A CN 115534077 A CN115534077 A CN 115534077A CN 202211467408 A CN202211467408 A CN 202211467408A CN 115534077 A CN115534077 A CN 115534077A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/26—Assemblies of separate moulds, i.e. of moulds or moulding space units, each forming a complete mould or moulding space unit independently from each other
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/02—Moulds with adjustable parts specially for modifying at will the dimensions or form of the moulded article
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Abstract
The invention discloses a construction method of a diaphragm plate adjustable template device of a PC precast beam of a curved bridge. The method comprises the following steps: step A, erecting a main template of the precast beam; b, erecting a diaphragm plate template assembly; c, adjusting the front side plate and the rear side plate; step D, installing an adjustable bracket; e, respectively manufacturing bottom steel plates with different angles according to different intersection angle angles of the diaphragm plate and the precast beam body; f, placing the bottom steel plate on a movable bracket between the front side plate and the rear side plate; g, respectively manufacturing top plate adjusting blocks with different angles according to different intersection angle angles of the diaphragm plate and the precast beam body; step H, respectively arranging a top plate adjusting block at the upper ends of the front side plate and the rear side plate and in threaded connection with the side plate back ribs; and step I, installing the plug board on the side ribs at the outer ends of the front side board and the rear side board. The invention realizes the adjustment of the intersection angle and the cross slope of the side plate and the bottom steel plate of the diaphragm plate template assembly, improves the construction efficiency, shortens the construction period and improves the construction quality.
Description
Technical Field
The invention relates to bridge engineering, in particular to a construction method of a diaphragm plate adjustable template device of a PC precast beam of a curved bridge.
Background
The design and erection of the bridge conform to the overall route of a road, and partial bridges are located in curved sections under the overall line shape of the route, so that curved bridges need to be designed and erected. Diaphragm plates are arranged between the prefabricated beams for keeping the section shape of the curved bridge and enhancing the transverse rigidity. In general, the diaphragm plates of the curved bridge are radially arranged according to a curve, and the transverse position, the gradient of a cross slope and the intersection angle with the precast beam body of each span are different. In actual construction, the transverse position of the diaphragm plate is adjusted by increasing or decreasing the beam length adjusting block, the gradient of the diaphragm plate and the intersection angle of the diaphragm plate template and a beam body are processed according to a standard beam (a linear bridge), and the gradient and the oblique intersection angle of the diaphragm plate cannot be adjusted, so that the diaphragm plate is seriously dislocated after the beam plate is erected, the construction quality of the diaphragm plate is influenced, and the stability and the safety of the operation of the bridge are also influenced.
The invention discloses a construction method of an adjustable flange plate of a prefabricated edge beam of a curved bridge, which is applied to a Chinese invention with the application number of 2019106326445.
Disclosure of Invention
The invention aims to solve the technical problems, so that the construction method of the diaphragm plate adjustable template device of the PC precast beam of the curved bridge is provided, the repair and the modification in the construction process are avoided, and the construction quality is improved.
The invention solves the technical problem and adopts the technical scheme that:
a construction method of a diaphragm plate adjustable template device of a PC precast beam of a curved bridge comprises the following steps:
step A, erecting a main body template of the precast beam
The prefabricated beam main body template comprises a bottom template, a front prefabricated beam main body side template, a web plate and a rear prefabricated beam main body side template, the bottom template is arranged on the prefabricated pedestal, and the front prefabricated beam main body side template, the web plate and the rear prefabricated beam main body side template are connected and then connected with the bottom template;
step B, erecting the diaphragm plate template component
The diaphragm plate formwork assembly is symmetrically erected on the outer sides of the webs on two sides and comprises a bottom steel plate, a front side plate, a rear side plate and a blanking plate, an upper adjusting rod and a lower adjusting rod are respectively installed on the upper portion and the lower portion of the outer plate surface of the front side plate and the lower portion of the outer plate surface of the rear side plate, the upper adjusting rod comprises an internal thread sleeve, an adjusting screw rod and a fixing screw rod, two sections of internal threads with opposite rotation directions are formed in the inner wall of the internal thread sleeve, the adjusting screw rod and the fixing screw rod are respectively screwed at two ends of the internal thread sleeve, the outer end of the adjusting screw rod is connected with the front side plate or the rear side plate, and the outer end of the fixing screw rod is connected with the support;
step C, adjusting the front side plate and the rear side plate
Synchronously screwing the internal thread sleeves of the upper adjusting rod and the lower adjusting rod, and adjusting the front side plate and the rear side plate to a design angle, wherein the distance between the front side plate and the rear side plate is greater than the width of the bottom steel plate;
step D, installing an adjustable bracket
The adjustable bracket is positioned at the bottom of the front side plate and the rear side plate, the adjustable bracket comprises a fixed bracket, a movable bracket and an adjusting mechanism, the adjusting mechanism comprises a universal foot cup, a fisheye bearing and an eyelet bolt, the base of the universal foot cup is fixedly connected with the movable bracket, the fisheye bearing is arranged on the fixed bracket, an inner ring of the fisheye bearing is provided with an inner thread, the eyelet bolt penetrates through the fisheye bearing and is fixedly connected with a supporting rod of the universal foot cup, two ends of the fixed bracket are respectively in threaded connection with the front side plate and the rear side plate, and the fixed bracket and the bolt of the rear side plate are not screwed up temporarily;
e, respectively manufacturing bottom steel plates with different angles according to different intersection angle angles of the diaphragm plate and the precast beam body;
step F, placing a bottom steel plate on a movable bracket between a front side plate and a rear side plate, wherein the bottom steel plate is fixedly connected with the movable bracket in a threaded manner, the height of the eyelet bolt is respectively adjusted according to the design cross slope gradient of a diaphragm plate, so that the top cross slope of the bottom steel plate meets the design requirement, then adjusting the angles of the front side plate and the rear side plate in place, and screwing the bolts of the fixed bracket and the rear side plate;
g, respectively manufacturing top plate adjusting blocks with different angles according to different intersection angle angles of the diaphragm plate and the precast beam body;
step H, respectively arranging a top plate adjusting block at the upper ends of the front side plate and the rear side plate and in threaded connection with the side plate back rib;
and step I, installing the plug board on the side ribs at the outer ends of the front side board and the rear side board.
Compared with the prior art, the invention adopting the technical scheme has the beneficial effects that:
the method has the advantages of realizing the adjustment of the intersection angle of the side plate and the bottom steel plate of the diaphragm plate template assembly and the cross slope, being simple in operation, avoiding the repair and the modification in the construction process, improving the construction efficiency, shortening the construction period, improving the construction quality, ensuring the transverse rigidity of the bridge, enhancing the transverse stability and the safety in the operation process of the bridge, and reducing the occurrence of the diseases of the diaphragm plate of the bridge.
Further, the optimization scheme of the invention is as follows:
a grout stopping plate is arranged between the plugging plate and the two side plates in a cushioning way.
The bolt hole of the plugging plate is a long hole.
The bolt hole at one end of the rear side plate of the fixing bracket is a long hole.
Drawings
FIG. 1 is an isometric view of an embodiment of the invention;
FIG. 2 is a front view of an embodiment of the present invention;
FIG. 3 isbase:Sub>A perspective view of section A-A of FIG. 1;
FIG. 4 is a perspective view of section B-B of FIG. 2;
fig. 5 is a front view of an adjustment lever according to an embodiment of the present invention.
In the figure: prefabricating a pedestal 1; 1-1 of a bottom template; 1-2 of a bracket; 1-3 of an upper cross bar; 1-4 parts of a lower cross bar; a front precast beam main body side formwork 2; a rear precast beam main body side formwork 3; a web 4; a front side plate 5; a rear side plate 6; an upper adjusting rod 7; a lower adjustment lever 8; an adjustable bracket 9; an upper beam 9-1; a lower cross beam 9-2; 9-3 parts of universal goblets; 9-4 of a fisheye bearing; eye bolts 9-5; a bottom steel plate 10; a top plate regulating block 11; side panel back ribs 12; a blanking plate 13; and a grout stop plate 14.
Detailed Description
The invention is further described in detail below with reference to the figures and examples.
Referring to fig. 1 to 4, the embodiment is a construction method of a diaphragm plate adjustable formwork device of a PC precast beam of a curved bridge, and the construction method is performed according to the following steps:
step A, erecting a main body template of the precast beam
The prefabricated beam main body template comprises a bottom template 1-1, a front prefabricated beam main body side template 2, a rear prefabricated beam main body side template 3 and a web 4, wherein the bottom template 1-1 is arranged on a prefabricated pedestal 1, the web 4 is arranged on the front prefabricated beam main body side template 2 and the prefabricated beam main body side template 3, and the front prefabricated beam main body side template 2, the rear prefabricated beam main body side template 3 and the web 4 are connected with the bottom template 1-1;
step B, erecting the diaphragm plate template component
The diaphragm plate template component is symmetrically supported at the outer sides of the webs 4 at two sides and comprises a front side plate 5, a rear side plate 6, a bottom steel plate 10 and a blanking plate 13, two upper adjusting rods 7 and two lower adjusting rods 8 are respectively arranged at the upper part and the lower part of the outer plate surface of the front side plate 5 and the lower part of the outer plate surface of the rear side plate 6, and the upper adjusting rods 7 and the lower adjusting rods 8 are identical in structure. The upper adjusting rod 7 mainly comprises an internal thread sleeve 7-1, an adjusting screw 7-2 and a fixing screw 7-3, wherein two sections of internal threads with opposite turning directions are arranged on the inner wall of the internal thread sleeve 7-2, the adjusting screw 7-1 and the fixing screw 7-3 are respectively screwed at two ends of the internal thread sleeve 7-1, the outer end of the adjusting screw 7-2 is connected with the front side plate 5 or the rear side plate 6, the outer end of the fixing screw 7-3 is connected with an upper cross rod 1-3 of the support 1-2, and the outer end of the fixing screw 7-3 of the lower adjusting rod 8 is connected with a lower cross rod 1-4 of the support 1-2;
step C, adjusting the front side plate and the rear side plate
Synchronously screwing the internal thread sleeves 7-1 of the upper adjusting rod 7 and the lower adjusting rod 8, adjusting the front side plate 5 and the rear side plate 6 to a designed angle, synchronously adjusting the upper adjusting rod 7 and the lower adjusting rod 8 to avoid the deformation of the front side plate 5 and the rear side plate 6 caused by asynchronism, wherein the distance between the front side plate 5 and the rear side plate 6 cannot be adjusted in place at one time, and the distance between the front side plate 5 and the rear side plate 6 is 1-2 cm greater than the width of the bottom steel plate 10 so as to form a certain adjusting space when the bottom steel plate 10 is installed;
step D, installing an adjustable bracket
The adjustable bracket 9 is positioned at the bottom of the front side plate 5 and the rear side plate 6, the adjustable bracket 9 mainly comprises a fixed bracket, a movable bracket and an adjusting mechanism, the fixed bracket comprises 3 lower cross beams 9-2, the movable bracket comprises 3 upper cross beams 9-1, the upper cross beams 9-1 are arranged above the lower cross beams 9-2 and correspond to the lower cross beams 9-2 one by one, two ends of the lower cross beams 9-2 are arranged on side ribs at the bottom of the front side plate 5 and the rear side plate 6 through bolts, bolt holes are formed in bolt holes at one end of the rear side plate 6 of the lower cross beams 9-2, and the bottom steel plate 10 is connected with the upper cross beams 9-1 through bolts;
the adjusting mechanism mainly comprises a universal foot cup 9-3, a fisheye bearing 9-4 and an eyelet bolt 9-5, wherein a base of the universal foot cup 9-3 is arranged in the middle of the bottom surface of an upper cross beam 9-2, the fisheye bearing 9-4 is arranged in a reserved mounting hole of a lower cross beam 9-1, an inner ring of the fisheye bearing 9-4 is provided with an internal thread, the eyelet bolt 9-5 penetrates through the fisheye bearing 9-4 and is matched with the internal thread of the inner ring, and the upper end of the eyelet bolt 9-5 is fixedly connected with a supporting rod of the universal foot cup 9-3. The support rod of the universal foot cup 9-3 is in spherical hinge with the base, the inner ring and the outer ring of the fisheye bearing 9-4 are in spherical hinge, and the adjusting mechanism is used for adjusting the height, the gradient and the multi-angle of the upper cross beam 9-2. Two ends of a lower cross beam 9-2 of the fixing bracket are respectively in threaded connection with the edge ribs at the bottoms of the front side plate 5 and the rear side plate 6, a bolt hole at one end of the rear side plate 6 of the lower cross beam 9-2 is a long hole, and the bolt of the lower cross beam 9-2 and the bolt of the rear side plate 6 are not screwed tightly temporarily;
e, respectively manufacturing bottom steel plates 10 with different angles according to different intersection angle angles of the diaphragm plate and the precast beam body;
step F, placing a bottom steel plate 10 on an upper cross beam 9-1 of a movable bracket between a front side plate 5 and a rear side plate 6, fixing the bottom steel plate 10 and the upper cross beam 9-1 in a threaded manner, adjusting the height of an eyelet bolt 9-5 respectively according to the design cross slope gradient of a diaphragm plate to ensure that the cross slope of the top surface of the bottom steel plate 10 meets the design requirement, adjusting the angles of the front side plate 5 and the rear side plate 6 in place, and screwing down bolts of a lower cross beam 9-2 of the fixed bracket and the rear side plate 6;
g, respectively manufacturing top plate adjusting blocks 11 with different angles according to different intersection angle angles of the diaphragm plate and the precast beam body, wherein the top plate adjusting blocks 11 are L-shaped;
step H, two top plate adjusting blocks 11 are respectively installed at the upper ends of the front side plate 5 and the rear side plate 6, the horizontal parts of the top plate adjusting blocks 11 are connected with side plate back ribs 12 through bolts, and the vertical parts of the top plate adjusting blocks 11 are located at the outer ends of the front side plate 5 and the rear side plate 6;
step I, installing a plugging plate 13 on side ribs at the outer ends of a front side plate 5 and a rear side plate 6, wherein a bolt hole of the plugging plate 13 is a long hole, installing a grout stopping plate 14 between the plugging plate 13 and the two side plates respectively, and plugging the long bolt hole with grout leakage by the grout stopping plate 14 to increase the stress area.
The invention realizes the adjustment of the intersection angle and the cross slope of the diaphragm plate template through the adjustment structure and the adjustment rod, has smart structure and simple operation, avoids the repair and the modification in the construction process, improves the construction quality, ensures the transverse rigidity of the bridge, enhances the transverse stability and the safety in the operation process of the bridge, and reduces the occurrence of the cross diaphragm plate damage of the bridge.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims and their equivalents.
Claims (4)
1. A construction method of a diaphragm plate adjustable template device of a PC precast beam of a curved bridge comprises the following steps:
step A, erecting a main body template of the precast beam
The prefabricated beam main body template comprises a bottom template, a front prefabricated beam main body side template, a web plate and a rear prefabricated beam main body side template, the bottom template is arranged on the prefabricated pedestal, and the front prefabricated beam main body side template, the web plate and the rear prefabricated beam main body side template are connected and then connected with the bottom template;
step B, erecting the diaphragm plate template component
The diaphragm plate formwork assembly is symmetrically erected on the outer sides of the webs on two sides and comprises a bottom steel plate, a front side plate, a rear side plate and a blanking plate, an upper adjusting rod and a lower adjusting rod are respectively installed on the upper portion and the lower portion of the outer plate surface of the front side plate and the lower portion of the outer plate surface of the rear side plate, the upper adjusting rod comprises an internal thread sleeve, an adjusting screw rod and a fixing screw rod, two sections of internal threads with opposite rotation directions are formed in the inner wall of the internal thread sleeve, the adjusting screw rod and the fixing screw rod are respectively screwed at two ends of the internal thread sleeve, the outer end of the adjusting screw rod is connected with the front side plate or the rear side plate, and the outer end of the fixing screw rod is connected with the support;
step C, adjusting the front side plate and the rear side plate
Synchronously screwing the internal thread sleeves of the upper adjusting rod and the lower adjusting rod, and adjusting the front side plate and the rear side plate to a design angle, wherein the distance between the front side plate and the rear side plate is greater than the width of the bottom steel plate;
step D, installing an adjustable bracket
The adjustable bracket is positioned at the bottom of the front side plate and the rear side plate, the adjustable bracket comprises a fixed bracket, a movable bracket and an adjusting mechanism, the adjusting mechanism comprises a universal foot cup, a fisheye bearing and an eyelet bolt, the base of the universal foot cup is fixedly connected with the movable bracket, the fisheye bearing is arranged on the fixed bracket, an inner ring of the fisheye bearing is provided with an inner thread, the eyelet bolt penetrates through the fisheye bearing and is fixedly connected with a supporting rod of the universal foot cup, two ends of the fixed bracket are respectively in threaded connection with the front side plate and the rear side plate, and the fixed bracket and the bolt of the rear side plate are not screwed up temporarily;
e, respectively manufacturing bottom steel plates with different angles according to different intersection angle angles of the diaphragm plate and the precast beam body;
step F, placing a bottom steel plate on a movable bracket between a front side plate and a rear side plate, wherein the bottom steel plate is fixedly connected with the movable bracket in a threaded manner, the height of the eyelet bolt is respectively adjusted according to the design cross slope gradient of a diaphragm plate, so that the top cross slope of the bottom steel plate meets the design requirement, then adjusting the angles of the front side plate and the rear side plate in place, and screwing the bolts of the fixed bracket and the rear side plate;
g, respectively manufacturing top plate adjusting blocks with different angles according to different intersection angle angles of the diaphragm plate and the precast beam body;
step H, respectively arranging a top plate adjusting block at the upper ends of the front side plate and the rear side plate and in threaded connection with the side plate back ribs;
and step I, installing the plug board on the side ribs at the outer ends of the front side board and the rear side board.
2. The construction method of the diaphragm plate adjustable template device of the PC precast beam of the curved bridge according to claim 1, characterized in that: a grout stopping plate is arranged between the plugging plate and the two side plates in a cushioning way.
3. The construction method of the diaphragm plate adjustable template device of the PC precast beam of the curved bridge according to claim 1, characterized in that: the bolt hole of the plug plate is a long hole.
4. The construction method of the diaphragm plate adjustable template device of the PC precast beam of the curved bridge according to claim 1, characterized in that: the bolt hole at one end of the rear side plate of the fixing bracket is a long hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211467408.0A CN115534077A (en) | 2022-11-22 | 2022-11-22 | Construction method of diaphragm plate adjustable template device of curve bridge PC precast beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211467408.0A CN115534077A (en) | 2022-11-22 | 2022-11-22 | Construction method of diaphragm plate adjustable template device of curve bridge PC precast beam |
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| CN115534077A true CN115534077A (en) | 2022-12-30 |
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| CN202211467408.0A Pending CN115534077A (en) | 2022-11-22 | 2022-11-22 | Construction method of diaphragm plate adjustable template device of curve bridge PC precast beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116394381A (en) * | 2023-04-06 | 2023-07-07 | 连云港先至远大建筑工业有限公司 | Diaphragm plate adjustable template device of PC precast beam and construction method thereof |
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2022
- 2022-11-22 CN CN202211467408.0A patent/CN115534077A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116394381A (en) * | 2023-04-06 | 2023-07-07 | 连云港先至远大建筑工业有限公司 | Diaphragm plate adjustable template device of PC precast beam and construction method thereof |
| CN116394381B (en) * | 2023-04-06 | 2023-09-01 | 连云港先至远大建筑工业有限公司 | Diaphragm plate adjustable template device of PC precast beam and construction method thereof |
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