CN114790697A - Method for installing and positioning large-tonnage special-shaped casting hinge structure - Google Patents
Method for installing and positioning large-tonnage special-shaped casting hinge structure Download PDFInfo
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- CN114790697A CN114790697A CN202210456372.XA CN202210456372A CN114790697A CN 114790697 A CN114790697 A CN 114790697A CN 202210456372 A CN202210456372 A CN 202210456372A CN 114790697 A CN114790697 A CN 114790697A
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- 238000005266 casting Methods 0.000 title claims abstract description 159
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000009434 installation Methods 0.000 claims abstract description 21
- 239000000725 suspension Substances 0.000 claims description 20
- 238000010276 construction Methods 0.000 abstract description 7
- 230000002457 bidirectional effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
Abstract
A method for installing and positioning a large-tonnage special-shaped casting hinge structure relates to the field of bridge construction. The method for installing and positioning the large-tonnage special-shaped casting hinge structure comprises the steps of building two suspender supports, two casting supports and a pin shaft installation support on a basic platform, arranging a jack at the top of the suspender support, and arranging a plurality of supporting plates for supporting pin shafts at two sides of the top of the pin shaft installation support; hanging the suspender and the casting to the two suspender supports and the two casting supports for supporting, hanging two pin shafts on the supporting plates positioned at two sides of the basic platform for supporting, adjusting two jacks to drive the suspender to lift, and enabling each suspender hinge hole at one end of the suspender, each casting lifting lug hole connected with the bottom of the casting and the two pin shafts to be coaxially arranged; and pushing the two pin shafts to enable the suspender to be hinged with the casting, hoisting the casting to the upper part of the hinged seat for supporting, and hinging the other end of the suspender with the hinged seat. The method for installing and positioning the hinge structure of the large-tonnage special-shaped casting solves the problem of hinge positioning precision of the large-tonnage special-shaped casting.
Description
Technical Field
The application relates to the field of bridge construction, in particular to a method for installing and positioning a large-tonnage special-shaped casting hinge structure.
Background
At present, a back cable structure of a cable-stayed bridge is mostly made of a reinforced concrete structure and is prefabricated or cast-in-place construction technology, when a prefabricated back cable casting is used, the self weight of the back cable casting and a matched structure is up to more than 300t due to the fact that the overall dimension of the back cable casting is large, the hinge structure of the back cable casting and the ear plate of a bridge embedded part are difficult to position in the hole and install a pin shaft, the installation efficiency is low, and the operation safety is low.
Disclosure of Invention
The application aims to provide a large-tonnage special-shaped casting hinged structure installation positioning method, which solves the problem of installation accuracy of a steel bridge pier connected by adopting a bidirectional hinged multi-combination rod piece, and greatly improves construction safety and construction efficiency.
The embodiment of the application is realized as follows:
the embodiment of the application provides a large-tonnage special-shaped casting hinge structure mounting and positioning method, which comprises the following steps:
the method comprises the following steps that a pin shaft mounting support, two suspender supports and two casting supports are built on a base platform, a jack is arranged at the top of each suspender support, a plurality of supporting plates are arranged at the top of each pin shaft mounting support, the supporting plates are respectively positioned at two sides of the base platform, the supporting plates positioned at two sides of the base platform are respectively used for supporting two pin shafts, and the axes of the pin shafts extend along the width direction of the base platform;
hanging the suspender on the tops of the two suspender supports and supporting by using corresponding jacks, hanging the casting on the two casting supports for supporting, hanging two pin shafts on a plurality of corresponding supporting plates positioned on two sides of the basic platform respectively for supporting, and adjusting the two jacks to drive the suspender to lift, so that each suspender hinge hole at one end of the suspender, each casting lifting lug hole connected with the bottom of the casting and the two pin shafts are coaxially arranged;
pushing the two pin shafts to move along the axial direction to the direction close to each other to pass through each suspender hinge hole and each suspender hole, and hinging one end of the suspender with the casting lifting lug of the casting;
the method comprises the steps of erecting temporary supports on two sides of an articulated seat of a bridge embedded part, hanging a casting above the articulated seat, supporting two ends of the casting by using the two temporary supports, and enabling the other end of a suspender hinged with the casting to vertically fall to be hinged with the articulated seat in a matched mode.
In some optional embodiments, when the pin shaft mounting bracket, the two boom brackets and the two casting brackets are built on the foundation platform, the one boom bracket, the one casting bracket, the other boom bracket, the pin shaft mounting bracket and the other casting bracket are sequentially arranged along the length direction of the foundation platform.
In some optional embodiments, two sides of one end of the suspension rod are respectively provided with at least two hinged plates arranged at intervals, each hinged plate is provided with a suspension rod hinged hole, each suspension rod hinged hole is arranged coaxially, and when the suspension rod is hung at the tops of the two suspension rod supports and supported by corresponding jacks, the axis of each suspension rod hinged hole and the axis of a pin shaft supported by the support plate are located on the same vertical plane.
In some optional embodiments, the bottom of the casting is connected with at least two casting lifting lugs, each casting lifting lug is provided with a lifting lug hole, and the lifting lug holes are coaxially arranged; when the castings are hung on the two casting supports for supporting, each casting lifting lug is inserted between the two corresponding hinged plates, and the lifting lug holes and the pin shafts supported by the supporting plates are arranged coaxially.
In some alternative embodiments, when the two pins are pushed to move along the axis in the direction of approaching each other, the two pins are moved synchronously at the same moving speed.
In some alternative embodiments, when the two pins are pushed to move along the axis in the direction of approaching each other, the corresponding support plates disengaged from the pins are removed in sequence.
In some optional embodiments, when the temporary supports are erected on two sides of the hinge seats of the bridge embedded parts, the balance beam is arranged on the top of the temporary supports, and at least two supporting pipes for supporting the castings and at least two positioning blocks for limiting the positions of the two sides of the castings are arranged on the top of the balance beam.
The beneficial effect of this application is: the application provides a large-tonnage profiled casting hinge structure installation positioning method, which comprises the following steps: the method comprises the following steps that a pin shaft mounting support, two suspender supports and two casting supports are built on a basic platform, a jack is arranged at the top of each suspender support, a plurality of supporting plates are arranged at the top of each pin shaft mounting support, the supporting plates are respectively located on two sides of the basic platform, and the supporting plates located on two sides of the basic platform are respectively used for supporting two pin shafts of which the axes extend along the width direction of the basic platform; hanging the suspender on the tops of the two suspender supports and supporting by using corresponding jacks, hanging the casting on the two casting supports for supporting, hanging the two pin shafts on a plurality of corresponding supporting plates positioned on two sides of the basic platform respectively for supporting, and adjusting the two jacks to drive the suspender to ascend and descend, so that each suspender hinge hole at one end of the suspender, each casting lifting lug hole connected with the bottom of the casting and the two pin shafts are coaxially arranged; pushing the two pin shafts to move along the axis in the direction of approaching each other to pass through each suspender hinge hole and each lifting lug hole, and hinging one end of the suspender with a casting lifting lug of the casting; the method comprises the steps of erecting temporary supports on two sides of an articulated seat of a bridge embedded part, hanging a casting above the articulated seat, supporting two ends of the casting by using the two temporary supports, and enabling the other end of a suspender hinged with the casting to vertically fall to be hinged with the articulated seat in a matched mode. The installation and positioning method for the large-tonnage special-shaped casting hinged structure solves the problem of installation accuracy of the steel bridge pier connected by the bidirectional hinged multi-combination rod pieces, and greatly improves construction safety and construction efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural view of a first view angle of a hinge pin mounting bracket, a suspender bracket and a casting bracket built on a base platform in the installation and positioning method for a large-tonnage special-shaped casting hinge structure provided by the embodiment of the application;
fig. 2 is a schematic structural view of a second view angle of building a pin shaft mounting bracket, a suspender bracket and a casting bracket on a foundation platform in the large-tonnage profiled casting hinge structure mounting and positioning method provided by the embodiment of the application;
fig. 3 is a schematic structural view of a first view angle of a pin shaft mounting bracket in the method for mounting and positioning the large-tonnage profiled casting hinge structure provided by the embodiment of the application;
FIG. 4 is a schematic structural diagram of a second view angle of the pin shaft mounting bracket in the method for mounting and positioning the large-tonnage profiled casting hinge structure provided by the embodiment of the application;
fig. 5 is a schematic structural view of a boom being hung to a boom support in the method for installing and positioning a large-tonnage profiled casting hinge structure according to the embodiment of the present application;
fig. 6 is a schematic structural view of a large-tonnage special-shaped casting hinging structure provided by the embodiment of the application when a casting is hung on a casting support;
FIG. 7 is a schematic structural view of a first state when a pushing pin shaft is inserted into a suspender and a casting in the installation and positioning method of the large-tonnage profiled casting hinge structure provided by the embodiment of the application;
FIG. 8 is a schematic structural view of a second state when a pushing pin shaft is inserted into a suspender and a casting in the method for installing and positioning the large-tonnage profiled casting hinge structure provided by the embodiment of the application;
fig. 9 is a schematic structural view of a third state when the hinge structure of the large-tonnage profiled casting is inserted into the hanger rod and the casting in the installation and positioning method for the hinge structure of the large-tonnage profiled casting according to the embodiment of the present application;
FIG. 10 is a schematic structural view of a fourth state when a pushing pin shaft is inserted into a hanger rod and a casting in the method for installing and positioning the large-tonnage profiled casting hinge structure provided by the embodiment of the application;
fig. 11 is a schematic structural view of a fifth state when the hinge structure of the large-tonnage profiled casting is inserted into the hanger rod and the casting in the installation and positioning method for the hinge structure of the large-tonnage profiled casting according to the embodiment of the present application;
fig. 12 is a schematic structural view of a sixth state when the hinge structure of the large-tonnage profiled casting is inserted into the hanger rod and the casting in the installation and positioning method for the hinge structure of the large-tonnage profiled casting according to the embodiment of the present application;
fig. 13 is a schematic structural view of temporary supports erected on two sides of a hinge seat of a bridge embedded part in the installation and positioning method for the large-tonnage profiled casting hinge structure provided by the embodiment of the application;
fig. 14 is a schematic structural view of a first viewing angle for hoisting a casting onto a temporary support in the installation and positioning method for a large-tonnage profiled casting hinge structure provided by the embodiment of the present application;
fig. 15 is a schematic structural view of a second viewing angle at which a casting is hung on a temporary support in the installation and positioning method of the large-tonnage profiled casting hinge structure provided by the embodiment of the application.
In the figure: 100. a base platform; 110. a pin shaft mounting bracket; 120. a boom support; 130. a casting support; 140. a jack; 150. a support plate; 151. a chute; 160. a pin shaft; 200. a boom; 201. a boom hinge hole; 202. a hinge plate; 210. casting; 220. a casting lifting lug; 230. a lug hole; 300. bridge embedded parts; 310. a hinged seat; 400. a temporary support; 410. a balance beam; 420. supporting a pipe; 430. and (5) positioning the blocks.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the product of the application is conventionally placed in use, and are used only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, detachable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In this application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
The characteristics and performance of the installation and positioning method of the large-tonnage special-shaped casting hinge structure are further described in detail in the following with reference to the embodiment.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12, fig. 13, fig. 14 and fig. 15, an embodiment of the present application provides a method for installing and positioning a large-tonnage profiled casting hinge structure, which includes the following steps:
as shown in fig. 1, 2, 3, and 4, a pin shaft mounting support 110, two boom supports 120, and two casting supports 130 are built on a base platform 100, one boom support 120, one casting support 130, the other boom support 120, the pin shaft mounting support 110, and the other casting support 130 are sequentially arranged along the length direction of the base platform 100, jacks 140 are respectively arranged at the tops of the two boom supports 120, eight support plates 150 are arranged at the top of the pin shaft mounting support 110, four support plates 150 are respectively arranged at two sides of the base platform 100, a semicircular chute 151 matched with the outer wall of a pin shaft 160 is formed at the top of each support plate 150, and the chutes 151 at the tops of the four support plates 150 at each side of the base platform 100 are used for supporting one pin shaft 160 in a matching manner; when the pin 160 is supported by the sliding slots 151 at the tops of the four supporting plates 150, the axis of the pin 160 extends along the width direction of the base platform 100 and is coaxial with the sliding slots 151 at the tops of the four supporting plates 150;
as shown in fig. 5 and 6, the suspension rod 200 is hung on the top of two suspension rod brackets 120 in a manner of extending along the length direction of the base platform 100 and two jacks 140 are used for supporting two ends of the suspension rod 200, two sides of one end of the suspension rod 200 close to the pin shaft mounting bracket 110 are respectively provided with three hinge plates 202 arranged at intervals along the width direction of the base platform 100, each hinge plate 202 is provided with a suspension rod hinge hole 201, the axes of the suspension rod hinge holes 201 are arranged coaxially, and the two jacks 140 are adjusted to drive the suspension rod 200 to lift so that each suspension rod hinge hole 201 and each sliding groove 151 are arranged coaxially; two lug seats are welded on the casting 210, the casting 210 is hoisted by using a lifting rope penetrating through the two lug seats, the casting 210 is hoisted on the tops of two casting supports 130 in an extending manner along the length direction of the base platform 100 to be supported, two casting lifting lugs 220 are respectively arranged on two sides of the bottom of the casting 210, a lifting lug hole 230 is formed in each casting lifting lug 220, the lifting lug holes 230 are coaxially arranged, and when the casting 210 is hoisted on the tops of the two casting supports 130 to be supported, each casting lifting lug 220 is inserted between two corresponding hinge plates 202, and each lifting lug hole 230, each hanger rod hinge hole 201 and each sliding chute 151 are coaxially arranged. The two pin shafts 160 are respectively hung on the tops of the pin shaft mounting brackets 110, the two pin shafts 160 are supported by using the sliding grooves 151 respectively arranged on the tops of the four supporting plates 150 on the two sides of the basic platform 100, at the moment, the two pin shafts 160 are respectively positioned on the two sides of the suspender 200 and the casting 210, and the six suspender hinge holes 201 at one end of the suspender 200, the four lug holes 230 on the casting lifting lug 220 connected with the bottom of the casting 210 and the two pin shafts 160 are coaxially arranged;
as shown in fig. 7, 8, 9, 10, 11 and 12, the two pins 160 are pushed to move synchronously at the same speed in the axial direction to approach each other so as to sequentially pass through the corresponding boom hinge hole 201 and the lifting lug hole 230, and during the pushing of the two pins 160 to move along the axial direction, the positioning plate and the total station are used to position the movement displacement of the pins 160 so as to ensure the synchronous movement of the two pins 160; when the two pins 160 are pushed to move along the axial direction to the direction of approaching each other, the corresponding support plates 150 separated from the pins 160 are sequentially removed, and one end of the hanger rod 200 is hinged with the casting lifting lug 220 of the casting 210;
as shown in fig. 13, temporary supports 400 are erected on both sides of a hinge seat 310 of a bridge embedment 300, a balance beam 410 is arranged on the top of the temporary support 400, two support pipes 420 for supporting a casting 210 and two positioning blocks 430 for defining positions of both sides of the casting 210 are arranged on the top of the balance beam 410, as shown in fig. 14 and 15, the casting 210 is suspended above the hinge seat 310, the support pipes 420 on the top of the two temporary supports 400 are used for supporting both ends of the casting 210 respectively, and the two positioning blocks 430 on the top of the two temporary supports 400 are used for defining positions of both sides of both ends of the casting 210 respectively, at this time, a lifting lug 200 hinged to the casting 220 at the bottom of the casting 210 hangs down due to gravity, so that the other end of the lifting lug 200 is dropped to be matched and hinged with the hinge seat 310.
The installation and positioning method of the large-tonnage profiled casting hinge structure provided by the embodiment of the application is that two hanger rod brackets 120 for supporting a hanger rod 200, two casting brackets 130 for supporting a casting 210 and two groups of support plates 150 for supporting two hinge pins 160 are built on a basic platform 100, the two hinge pins 160 supported by the two groups of support plates 150 are respectively positioned at two sides of the hanger rod brackets 120 and the casting brackets 130, a hanger rod hinge hole 201 hung at one end of the hanger rod 200 supported on the hanger rod brackets 120, a lifting lug hole 230 hung at a casting lifting lug 220 at the bottom of the casting 210 supported on the casting brackets 130 and the hinge pins 160 hung on the two groups of support plates 150 are coaxially arranged, then the two hinge pins 160 are pushed to synchronously move along the mutually approaching direction to pass through each hanger rod hinge hole 201 and each lifting lug hole 230, the installation accuracy and the stress of the bidirectional hinge structure are ensured, wherein the tops of the two hanger rod brackets 120 are respectively provided with a jack 140, the lifting of the ends of the boom 200 can be actuated so that the height of the boom 200 is adjusted to control the lifting of the boom hinge holes 201 in the respective hinge plates 202 at one end of the boom 200 to ensure that the respective boom hinge holes 201 are aligned with the respective lug holes 230 and the two pins 160 for plug-in mounting.
The two pins 160 are pushed to synchronously move along the axial direction at the same speed to sequentially pass through the corresponding hanger rod hinge hole 201 and the hanger hole 230, so that the condition that the butt joint installation operation is influenced by unbalanced stress on the hinge plate 202 at one end of the hanger rod 200 and the casting hanger 220 at the bottom of the casting 210 when the two pins 160 do not move synchronously can be avoided; when the two pins 160 are pushed to move along the axial direction to approach each other, the corresponding support plates 150 separated from the pins 160 are sequentially removed, so that an operator can conveniently push the pins 160 to move axially and insert into the boom hinge hole 201 and the lifting lug hole 230, so that one end of the boom 200 is hinged with the casting lifting lug 220 of the casting 210, finally the casting 210 is lifted above the hinge seat 310, two ends of the casting 210 are respectively supported by the temporary supports 400 erected on two sides of the hinge seat 310, the casting 210 is supported by the two support pipes 420 arranged on the top of the temporary support 400, and the positions on two sides of the casting 210 are limited by the positioning blocks 430 arranged on two sides of the top of the temporary support 400, at this time, the boom 200 hinged with the casting lifting lug 220 at the bottom of the casting 210 sags due to gravity, so that the other end of the boom 200 sags to be matched and hinged with the hinge seat 310 to complete positioning connection operation.
In an alternative embodiment, the two pins 160 may be respectively hung on the top of the pin mounting bracket 110 for supporting, and then the hanger bar 200 and the casting 210 are respectively hung on the top of the hanger bar bracket 120 and the casting bracket 130 for supporting.
The embodiments described above are some, but not all embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
Claims (7)
1. A method for installing and positioning a large-tonnage profiled casting hinge structure is characterized by comprising the following steps:
building a pin shaft mounting support, two suspender supports and two casting supports on a basic platform, arranging a jack at the top of each suspender support, arranging a plurality of supporting plates at the top of each pin shaft mounting support, respectively positioning the supporting plates at two sides of the basic platform, respectively positioning each supporting plate at two sides of the basic platform for supporting two pin shafts, and enabling the axes of the pin shafts to extend along the width direction of the basic platform;
hanging a suspender on the tops of the two suspender supports and utilizing the corresponding jacks to support, hanging a casting on the two casting supports to support, hanging two pin shafts on a plurality of corresponding support plates positioned on two sides of the basic platform respectively to support, and adjusting the two jacks to drive the suspender to lift so that each suspender hinge hole at one end of the suspender, each casting lifting lug hole connected with the bottom of the casting and the two pin shafts are coaxially arranged;
pushing the two pin shafts to move along the axial direction to the direction close to each other and pass through each suspender hinge hole and each lug hole, and hinging one end of the suspender with the casting lifting lug of the casting;
the method comprises the steps of erecting temporary supports on two sides of a hinged seat of a bridge embedded part, hanging a casting to the position above the hinged seat, using the two temporary supports to support two ends of the casting, and enabling the other end of a hanging rod hinged to the casting to vertically fall to be matched and hinged with the hinged seat.
2. The method for installing and positioning the large-tonnage profiled casting hinge structure according to claim 1, wherein when a pin shaft installing support, two boom supports and two casting supports are built on a base platform, one boom support, one casting support, the other boom support, the pin shaft installing support and the other casting support are sequentially arranged along the length direction of the base platform.
3. The method as claimed in claim 1, wherein at least two hinged plates are spaced from each other on both sides of one end of the suspension rod, each hinged plate is provided with one suspension rod hinge hole, each suspension rod hinge hole is arranged coaxially, and when the suspension rod is suspended on the top of the two suspension rod supports and supported by the corresponding jack, the axis of each suspension rod hinge hole and the axis of the pin supported by the support plate are located on the same vertical plane.
4. The installation and positioning method for the large-tonnage special-shaped casting hinge structure according to claim 1, wherein at least two casting lifting lugs are connected to the bottom of the casting, each casting lifting lug is provided with one lifting lug hole, and the lifting lug holes are coaxially arranged; when the casting is hung on the two casting supports for supporting, each casting lifting lug is inserted between the two corresponding hinged plates, and the lifting lug holes and the pin shafts supported by the supporting plates are coaxially arranged.
5. The method for installing and positioning the hinge structure of the large-tonnage profiled casting according to claim 1, wherein when the two pins are pushed to move along the axial direction toward each other, the two pins are moved synchronously at the same moving speed.
6. The method for installing and positioning the hinge structure of the large-tonnage profiled casting according to claim 1, wherein when the two pins are pushed to move along the axial direction toward each other, the corresponding support plates detached from the pins are sequentially removed.
7. The method for installing and positioning the large-tonnage special-shaped casting hinge structure according to claim 1, wherein when temporary supports are erected on two sides of a hinge seat of the bridge embedded part, a balance beam is arranged on the top of each temporary support, and at least two supporting tubes for supporting the casting and at least two positioning blocks for limiting the positions of the two sides of the casting are arranged on the top of each balance beam.
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| CN202210456372.XA CN114790697A (en) | 2022-04-27 | 2022-04-27 | Method for installing and positioning large-tonnage special-shaped casting hinge structure |
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| CN202210456372.XA CN114790697A (en) | 2022-04-27 | 2022-04-27 | Method for installing and positioning large-tonnage special-shaped casting hinge structure |
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