CN217378583U - Crossbeam support structure with main tower column stull function - Google Patents
Crossbeam support structure with main tower column stull function Download PDFInfo
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- CN217378583U CN217378583U CN202220611465.0U CN202220611465U CN217378583U CN 217378583 U CN217378583 U CN 217378583U CN 202220611465 U CN202220611465 U CN 202220611465U CN 217378583 U CN217378583 U CN 217378583U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a beam support structure with main tower column stull function relates to bridge construction technical field, include: lower trapezoidal truss and last girder, lower trapezoidal truss includes two bottom horizon bars along the horizontal setting of bridge, every the both ends of bottom horizon bar are equallyd divide and are do not connected with two main tower pylons, it locates to go up the girder the top of lower trapezoidal truss, it is used for the main tower crossbeam of construction to go up the girder. The utility model discloses be provided with down trapezoidal truss, and will two of trapezoidal truss divide equally along the both ends of the horizontal bottom horizontal pole that sets up of bridge do not be connected with two main tower pylons down, make two the bottom horizontal pole can regard as main tower pylon stull to use, has practiced thrift the engineering volume of original main tower stull structure. In addition, an upper main beam for constructing a main tower cross beam is arranged on the lower trapezoidal truss, so that the problem that the traditional cross beam support often interferes with a main tower cross beam when arranged is effectively solved.
Description
Technical Field
The utility model relates to a bridge construction technical field, in particular to crossbeam supporting structure with main tower column stull function.
Background
In the existing large-span cable-stayed bridge or suspension bridge, a main tower is an important component of bridge engineering. The main tower is generally a high-rise structure, the transverse bridge of the main tower is arranged to be narrow at the top and wide at the bottom, the middle and upper tower columns are generally arranged to be inwards inclined, and along with the increase of the height of a cantilever of the main tower column, the internal force and deformation of the tower column inclining towards the inner side are in a linear growth trend, so that in the construction of the main tower column, in order to avoid the internal force and deformation of the tower column exceeding standards, a transverse bracing structure is required to be arranged to apply an outward jacking force to the tower column so as to improve the internal force and the linear shape of the tower column.
In addition, along with the increase of the height of the main tower, the height of the cross beam is also increased continuously, the engineering quantity of the conventional floor type cross beam support is increased continuously, and certain interference exists between the vertical upright post and the cross beam of the main tower on the plane arrangement. The non-floor type beam support is arranged on the vertical surface and the plane and has interference with a main tower cross brace structure, so that difficulty is brought to the use of the beam support, and the turnover utilization rate of the support is low.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a beam support structure with main tower column stull function to solve current beam support and main tower stull mutual independence, there is mutual interference's technical problem during the use.
The embodiment of the utility model provides a beam support structure with main tower column stull function, beam support structure includes:
the lower trapezoidal truss comprises two bottom horizontal rods transversely arranged along a bridge, and two ends of each bottom horizontal rod are respectively connected with two main tower columns;
and the upper main beam is arranged above the lower trapezoidal truss.
In some embodiments, two ends of each bottom horizontal rod are respectively connected with an inclined rod, and a top horizontal rod is connected between the upper ends of the two inclined rods;
and the two bottom horizontal rods, the two top horizontal rods and each bottom horizontal rod are connected with the inclined rods at two ends through connecting rods.
In some embodiments, each of the bottom horizontal rods comprises a bottom horizontal steel section and end steel sections located at two sides of the bottom horizontal steel section, each of the end steel sections comprises a horizontal portion, an inclined portion and a node plate, two ends of the bottom horizontal steel section are connected with the horizontal portions of the two end steel sections through flange plates, the inclined portions of the two end steel sections are respectively connected with the lower ends of the two corresponding inclined rods through flange plates, and the node plates of the two end steel sections are respectively connected with the two main tower columns;
each top horizontal rod all includes the horizontal steel section in top, the horizontal steel section both ends in top pass through the ring flange respectively with two corresponding the upper end of down tube is connected.
In some embodiments, the beam support structure further comprises:
and the four lower supporting parts are connected with the two main tower towers and are respectively positioned below the end steel sections, and the four lower supporting parts are used for supporting the lower trapezoidal truss.
In some embodiments, a shoveling pad is arranged between the four lower supporting parts and the lower trapezoidal truss.
In some embodiments, a plurality of vertical long circular holes are formed in the gusset plate of each end steel section, and the gusset plate is connected with a pre-set climbing cone of the corresponding main tower column through the vertical long circular holes.
In some embodiments, the beam support structure further comprises:
four go up the supporting part, four go up the supporting part and be connected and be located with two main tower pylon go up the below at girder both ends, four go up the supporting part and be used for supporting go up the girder.
In some embodiments, the upper main beam comprises:
the distribution beams are respectively arranged above the four upper supporting parts and the lower trapezoidal truss;
the Bailey beam main body is arranged above the distribution beam;
the special-shaped bent frame is arranged above the Bailey beam main body;
the pad beam is arranged between the special-shaped bent frame and the Bailey beam main body;
the bottom die is arranged on the special-shaped bent frame.
In some embodiments, the beret body includes first, second and third beret beams, the first, second and third beret beams respectively form a simple support structure with the corresponding distribution beam, and the first and second beret beams and the second and third beret beams are transversely staggered.
The utility model provides a beneficial effect that technical scheme brought includes:
the embodiment of the utility model provides a beam support structure with main tower pylon stull function, beam support structure is provided with down trapezoidal truss, and will two of trapezoidal truss divide equally along the both ends of the horizontal bottom horizontal pole that sets up of bridge down do not be connected with two main tower pylon, make two the bottom horizontal pole can regard as main tower pylon stull to use, has practiced thrift the original engineering volume that sets up main tower stull structure specially. In addition, an upper main beam for constructing the main tower cross beam is arranged on the lower trapezoidal truss, so that the problem that the traditional cross beam support often interferes with the main tower cross beam when arranged is effectively solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a cross beam support structure having a cross brace function of a main tower column according to an embodiment of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a force-bearing view of a bottom horizontal bar according to an embodiment of the present invention;
fig. 4 is a force-bearing view of the lower trapezoidal truss provided in the embodiment of the present invention;
fig. 5 is a schematic view of a bottom horizontal rod provided in an embodiment of the present invention;
fig. 6 is a schematic view of a gusset plate provided in an embodiment of the present invention;
fig. 7 is a schematic view of a beret beam body according to an embodiment of the present invention;
fig. 8 is another schematic view of a beret beam body according to an embodiment of the present invention;
fig. 9 is a first schematic flow chart of a method for using a beam support structure with a main tower column cross brace function according to an embodiment of the present invention;
fig. 10 is a second schematic flow chart of a method for using a beam support structure with a main tower column cross brace function according to an embodiment of the present invention;
fig. 11 is a third schematic flow chart of a method for using a beam support structure with a main tower column cross brace function according to an embodiment of the present invention;
fig. 12 is a fourth schematic flow chart illustrating a method for using a beam support structure with a main tower column bracing function according to an embodiment of the present invention;
fig. 13 is a fifth schematic flow chart illustrating a method for using a beam support structure with a main tower column cross-brace function according to an embodiment of the present invention;
fig. 14 is a sixth schematic flow chart illustrating a method for using a beam support structure with a main tower column bracing function according to an embodiment of the present invention;
in the figure: 1. a lower ladder truss; 11. a bottom horizontal bar; 12. a diagonal bar; 13. a top horizontal bar; 14. a connecting rod; 111. a bottom horizontal steel section; 112. an end steel section; 1121. a horizontal portion; 1122. an inclined portion; 1123. a gusset plate; 1124. a vertical oblong hole; 12. a diagonal bar; 13. a top horizontal bar; 131. a top horizontal steel section; 2. an upper main beam; 21. a distribution beam; 22. a Bailey beam body; 221. a first Bailey beam; 222. a second Bailey beam; 223. a third Bailey beam; 23. a special-shaped bent frame; 24. a bolster; 25. bottom die; 3. a main tower column; 4. a lower support section; 5. climbing a cone; 6. an upper support section; 7. a main tower beam; 8. and (7) making a mat.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the utility model provides a beam support structure with main tower column stull function, it can solve current beam support and main tower stull mutual independence, has mutual interference's technical problem during the use.
Referring to fig. 1 and 2, an embodiment of the present invention provides a beam support structure with a main tower column cross brace function, where the beam support structure includes: a lower ladder truss 1 and an upper main girder 2.
The embodiment of the utility model provides an in crossbeam supporting structure with main tower pylon stull function, it is provided with down trapezoidal truss 1, and will down two of trapezoidal truss 1 equally divide along the bottom horizon bar 11's that the bridge transversely set up both ends do not be connected with two main tower pylons 3, make two bottom horizon bar 11 can regard as main tower pylon stull to use, has practiced thrift the original engineering volume that sets up main tower stull structure specially. In addition, an upper main beam 2 for constructing a main tower cross beam 7 is arranged on the lower trapezoidal truss 1, so that the problem that the traditional cross beam support often interferes with a main tower cross beam when arranged is effectively solved.
As an alternative embodiment, in an embodiment of the present invention, referring to fig. 1 and 2, two ends of each of the bottom horizontal rods 11 are respectively connected with an inclined rod 12, and a top horizontal rod 13 is connected between the upper ends of the two inclined rods 12. Optionally, the included angle between two inclined rods 12 and the horizontal plane is preferably 45-60 degrees.
The two bottom horizontal rods 11, the two top horizontal rods 13 and each bottom horizontal rod 11 and the inclined rods 12 at two ends are connected through a connecting rod 14.
Specifically, as shown in fig. 3 and 4, in the construction stage of the main tower 3, due to the fact that the main tower 3 is inclined inwards, each bottom horizontal rod 11 is under the action of pressure N1 under the action of the dead weight G of the tower, in the construction stage of the main tower cross beam 7, the upper main beam 2 is under the action of the dead weight of the main tower cross beam 7, the lower trapezoidal truss 1 is under the vertically downward concentrated load F, under the action of the concentrated load F, the top horizontal rod 13 of the lower trapezoidal truss 1 is under the pressure value N3, the inclined rod 12 is under the pressure value N4, the bottom horizontal rod 11 is under the tension value N2, and the value of N2 is equal to the value of N3. After the construction of the main tower cross beam 7 is finished, the internal force value of the bottom horizontal rod 11 is changed into N1-N2, so that the bottom horizontal rod 11 of the lower trapezoidal truss 1 can be used as a main tower column cross brace, and the internal force of the bottom horizontal rod 11 cross brace can be improved during use.
As an alternative embodiment, in an embodiment of the present invention, referring to fig. 1 and 5, each of the bottom horizontal rods 11 includes a bottom horizontal steel segment 111 and end steel segments 112 located at two sides of the bottom horizontal steel segment 111, each of the end steel segments 112 includes a horizontal portion 1121, an inclined portion 1122 and a node plate 1123, two ends of the bottom horizontal steel segment 111 are connected to the horizontal portions 1121 of the two end steel segments 112 through flanges, the inclined portions 1122 of the two end steel segments 112 are respectively connected to the lower ends of the two corresponding sway rods 12 through flanges, and the node plates 1123 of the two end steel segments 112 are respectively connected to the two main towers 3.
Each top horizontal rod 13 comprises a top horizontal steel section 131, two ends of each top horizontal steel section 131 are respectively connected with the upper ends of the corresponding two inclined rods 12 through flanges, the lengths of the bottom horizontal steel section 111 and the top horizontal steel section 131 can be adjusted to adapt to the main tower cross beams 7 with different widths, and the utilization rate is high.
As an alternative embodiment, in an embodiment of the present invention, referring to fig. 1, the beam support structure further includes: and the four lower supporting parts 4 are connected with the two main tower towers 3 and are respectively positioned below the four end steel sections 112, and the four lower supporting parts 4 are used for supporting the lower trapezoidal truss 1. Further, the four lower supporting parts 4 may be of a boot-shaped corbel structure, and bear a large vertical load.
As an optional implementation manner, in an embodiment of the present invention, referring to fig. 6, a plurality of vertical long circular holes 1124 are provided on the gusset plate 1123 of each end steel segment 112, and the gusset plate 1123 is connected to the pre-set climbing cone 5 of the corresponding main tower 3 through the vertical long circular holes 1124, so as to ensure that the bottom horizontal rod 11 does not bear vertical force.
As an alternative embodiment, in an embodiment of the present invention, referring to fig. 1, the beam support structure further includes: four go up supporting part 6, four go up supporting part 6 and two main tower pylon 3 and be connected and be located go up the below at 2 both ends of girder, four go up supporting part 6 and be used for supporting go up girder 2, four go up supporting part 6 can bear less vertical load for the built-in fitting bracket. The upper main beam 2 for constructing the main tower cross beam 7 is respectively supported on the four upper supporting parts 6 of the lower trapezoidal truss 1 and the main tower column 3, so that the span of the upper main beam 2 is effectively reduced, the stress of the upper main beam 2 is favorably reduced, and the structural engineering quantity is saved. Optionally, a shoveling pad 8 is disposed between the four lower supporting portions 4 and the lower ladder-shaped truss 1.
As an alternative embodiment, in an embodiment of the present invention, referring to fig. 2 and 7, the upper main beam 2 includes: the distribution beam 21, the Bailey beam main body 22, the special-shaped bent frame 23, the pad beam 24 and the bottom die 25.
The utility model discloses a special-shaped bent frame, including spandrel girder 21, upper support portion 6, back of body frame 24, base beam 24, die block 25, bottom die 25, the spandrel girder 2 is equipped with the multilayer arrangement mode, and main bearing structure is bei lei lian main part 22, this material has better turnover nature, the spandrel girder main part 22 is located four go up supporting portion 6 with 1 top of lower trapezoidal truss, bei lei lian main part 22 is located the spandrel girder 21 top, special-shaped bent frame 23 is located bei lei lian main part 22 top, the base beam 24 is located between special-shaped bent frame 23 and the bei lian main part 22, the die block 25 is located on special-shaped bent frame 23 go up the girder 2 adopts the multilayer arrangement mode after, main bearing structure is bei lian main part 22.
As an optional implementation manner, in an embodiment of the present invention, referring to fig. 8, the beret main body 22 includes a first beret 221, a second beret 222, and a third beret 223, the first beret 221, the second beret 222, and the third beret 223 respectively form a simple support structure with the corresponding distribution beam 21, and the first beret 221 and the second beret 222, and the second beret 222 and the third beret 223 are transversely staggered. Specifically, the distribution beam 21 may be an integral multiple of 3m, and can be better adapted to the structural form of the beret beam main body 22, and the beret beam main body 22 adopts a three-span simple support arrangement, and can be better adapted to the main tower cross beams 7 with different lengths.
The embodiment of the utility model provides a beam support structure's application method with main tower column stull function, application method includes:
after the main tower 3 is constructed to the preset height, two bottom horizontal rods 11 of the lower trapezoidal truss 1 are transversely arranged along the bridge, so that two ends of each bottom horizontal rod 11 are respectively connected with the two main tower towers 3.
And (3) continuing constructing the main tower and the tower column 3 until the height of the main tower and the tower column 3 exceeds the height of the main tower and the cross beam 7, assembling the two bottom horizontal rods 11 to obtain a lower trapezoidal truss 1, erecting an upper main beam 2 on the lower trapezoidal truss 1, and constructing the main tower and the cross beam 7 after the upper main beam 2 is erected.
Referring to fig. 9 and 10, the creeping formwork is used for constructing the main tower 3, after the main tower 3 is constructed to a certain height, two bottom horizontal rods 11 of the lower trapezoidal truss 1 are transversely arranged along the bridge, two ends of each bottom horizontal rod 11 are respectively connected with the two main tower 3, and the bottom horizontal rods 11 are applied with opposite top forces to adjust the internal force and the line shape of the main tower 3. In addition, four lower support portions 4 and four upper support portions 6 are provided according to actual needs, and the bottom horizontal rod 11 is vertically supported on the four lower support portions 4.
Referring to fig. 11 and 12, the construction of the main tower 3 is continued, after the construction height of the main tower 3 exceeds the main tower cross beam 7, the two bottom horizontal rods 11 are spliced to obtain a lower trapezoidal truss 1, and then the upper main beam 2 is erected on the lower trapezoidal truss 1.
Specifically, the inclined rods 12 and the connecting rods 14 of the lower trapezoidal truss 1 are connected on the ground, then the tower crane is used for integral hoisting, the top horizontal rod 13 is installed by the tower crane, and the installation of the lower trapezoidal truss 1 is completed.
Utilize tower crane hoist and mount distributive girder 21, because receive the influence of main tower pylon 3 and creeping formwork, the tower crane can not directly hoist distributive girder 21 to the design position, can set up sideslip wire rope on last supporting part 6, draws distributive girder 21 to the design position.
The first Bailey beam 221 and the third Bailey beam 223 are assembled into a whole on the ground, and the first Bailey beam 221 and the third Bailey beam 223 are integrally hoisted in place by using a tower crane. And continuously splicing the second Bailey beams 222 into a whole on the ground, and integrally hoisting the second Bailey beams 222 in place through a tower crane. And (5) continuously installing the special-shaped bent frames 23, the cushion beam 24 and the bottom die 25 to finish the installation of the upper main beam 2.
Referring to fig. 13 and 14, after the upper main beam 2 is erected, the main tower beam 7 is constructed, after the concrete of the main tower beam 7 reaches the design strength, the beam is tensioned to be prestressed, and the lower trapezoidal truss 1 and the upper main beam 2 are removed.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; 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 invention can be understood according to specific situations by those skilled in the art.
It is noted that, in the present invention, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A beam support structure having a main tower column wale function, characterized in that the beam support structure comprises:
the lower trapezoidal truss (1) comprises two bottom horizontal rods (11) which are transversely arranged along a bridge, and two ends of each bottom horizontal rod (11) are respectively connected with two main tower columns (3); two ends of each bottom horizontal rod (11) are respectively connected with an inclined rod (12), and a top horizontal rod (13) is connected between the upper ends of the two inclined rods (12); the two bottom horizontal rods (11), the two top horizontal rods (13) and each bottom horizontal rod (11) are connected with the inclined rods (12) at two ends through connecting rods (14);
and the upper main beam (2) is arranged above the lower trapezoidal truss (1).
2. The cross-beam support structure having a function of a cross brace of a main tower of claim 1, wherein:
each bottom horizontal rod (11) comprises a bottom horizontal steel section (111) and end steel sections (112) located on two sides of the bottom horizontal steel section (111), each end steel section (112) comprises a horizontal part (1121), inclined parts (1122) and node plates (1123), two ends of the bottom horizontal steel section (111) are connected with the horizontal parts (1121) of the two end steel sections (112) through flange plates, the inclined parts (1122) of the two end steel sections (112) are respectively connected with the lower ends of the two corresponding inclined rods (12) through flange plates, and the node plates (1123) of the two end steel sections (112) are respectively connected with the two main tower columns (3);
each top horizontal rod (13) comprises a top horizontal steel section (131), and two ends of the top horizontal steel section (131) are respectively connected with the upper ends of the two corresponding inclined rods (12) through flanges.
3. The beam support structure having a main tower wale function according to claim 2, wherein said beam support structure further comprises:
the four lower supporting parts (4), four lower supporting parts (4) are connected with two main tower towers (3) and are respectively located four below the end steel sections (112), and the four lower supporting parts (4) are used for supporting the lower trapezoidal truss (1).
4. A cross-beam support structure having a function of a cross brace of a main tower as claimed in claim 3, wherein:
and shoveling pads (8) are arranged between the four lower supporting parts (4) and the lower trapezoidal truss (1).
5. The cross-beam support structure having a function of a cross brace of a main tower column according to claim 2, wherein:
each gusset plate (1123) of the end steel section (112) is provided with a plurality of vertical long round holes (1124), and the gusset plates (1123) are connected with the corresponding climbing cones (5) preset on the main tower column (3) through the vertical long round holes (1124).
6. The beam support structure having a main tower wale function according to claim 1, wherein said beam support structure further comprises:
four go up supporting part (6), four go up supporting part (6) and be connected and be located with two main tower pylon (3) the below at upper girder (2) both ends, four go up supporting part (6) and be used for supporting upper girder (2).
7. A cross-beam support structure with main tower wale function according to claim 6, wherein said upper main beam (2) comprises:
the distribution beams (21) are respectively arranged above the four upper supporting parts (6) and the lower trapezoidal truss (1);
a Bailey beam main body (22), wherein the Bailey beam main body (22) is arranged above the distribution beam (21);
the special-shaped bent frame (23) is arranged above the Bailey beam main body (22);
the pad beam (24) is arranged between the special-shaped bent frame (23) and the Bailey beam main body (22);
the bottom die (25) is arranged on the special-shaped bent frame (23).
8. The cross-beam support structure having a function of a cross brace of a main tower of claim 7, wherein:
the Bailey beam main body (22) comprises a first Bailey beam (221), a second Bailey beam (222) and a third Bailey beam (223), the first Bailey beam (221), the second Bailey beam (222) and the third Bailey beam (223) respectively form a simple support structure with the corresponding distribution beam (21), and the first Bailey beam (221) and the second Bailey beam (222) and the third Bailey beam (223) are transversely arranged in a staggered mode.
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| CN202220611465.0U CN217378583U (en) | 2022-03-16 | 2022-03-16 | Crossbeam support structure with main tower column stull function |
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| CN202220611465.0U CN217378583U (en) | 2022-03-16 | 2022-03-16 | Crossbeam support structure with main tower column stull function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114541270A (en) * | 2022-03-16 | 2022-05-27 | 中铁大桥局集团有限公司 | Cross beam support structure with main tower column cross bracing function and using method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114541270A (en) * | 2022-03-16 | 2022-05-27 | 中铁大桥局集团有限公司 | Cross beam support structure with main tower column cross bracing function and using method |
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