CN217378583U - Crossbeam support structure with main tower column stull function - Google Patents

Abstract

The utility model discloses a cross-beam support structure with the function of a main tower and a column cross-bracing, which relates to the technical field of bridge construction. Horizontal rods, both ends of each of the bottom horizontal rods are respectively connected with two main tower columns, the upper main beam is arranged above the lower trapezoidal truss, and the upper main beam is used for the construction of the main tower beam . The utility model is provided with a lower trapezoidal truss, and both ends of the two bottom horizontal rods of the lower trapezoidal truss, which are arranged laterally along the bridge, are respectively connected with the two main tower columns, so that the two bottom horizontal rods can be It is used as the main tower column cross brace, which saves the engineering quantity of the original main tower cross brace structure. In addition, the upper main beam used for the construction of the main tower cross beam is arranged on the lower trapezoidal truss, which effectively solves the problem that the traditional cross beam support often interferes with the main tower cross brace during the arrangement.

Description

The beam support structure with the function of the main tower column cross bracing

technical field

The utility model relates to the technical field of bridge construction, in particular to a beam support structure with the function of a main tower and a column cross brace.

Background technique

In the current long-span cable-stayed bridge or suspension bridge, the main tower is an important part of bridge engineering. The main tower is generally a high-rise structure, and its transverse bridge is arranged to be narrow at the top and wide at the bottom, and the middle and upper towers are generally arranged inwardly. Therefore, in order to prevent the internal force and deformation of the tower from exceeding the standard during the construction of the main tower, it is necessary to set up a cross-bracing structure to exert an outward jacking force on the tower to improve the internal force and alignment of the tower.

In addition, with the increase of the height of the main tower, the height of the beam is also continuously increased, the amount of conventional floor-type beam support is increasing, and there is a certain interference in the layout of the vertical column and the main tower cross brace. The arrangement of the non-floor-type beam support interferes with the cross-bracing structure of the main tower on the elevation and plane, which brings difficulties to the use of the beam support, and the turnover utilization rate of the support is low.

Utility model content

The embodiment of the present utility model provides a cross beam support structure with the function of the main tower column cross support, so as to solve the technical problem that the existing cross beam support and the main tower cross support are independent of each other and interfere with each other during use.

The embodiment of the present utility model provides a cross-beam support structure with the function of a main tower column cross-bracing, and the cross-beam support structure includes:

a lower trapezoidal truss, the lower trapezoidal truss includes two bottom horizontal rods arranged laterally along the bridge, and both ends of each of the bottom horizontal rods are respectively connected with two main tower columns;

The upper main beam is arranged above the lower trapezoidal truss.

In some embodiments, two ends of each of the bottom horizontal rods are respectively connected with inclined rods, and a top horizontal rod is connected between the upper ends of the two inclined rods;

The two bottom horizontal rods, the two top horizontal rods, and each of the bottom horizontal rods and the inclined rods at both ends are connected by connecting rods.

In some embodiments, each of the bottom horizontal bars includes a bottom horizontal steel section and end steel sections located on both sides of the bottom horizontal steel section, and each of the end steel sections includes a horizontal portion, an inclined portion, and a horizontal portion. gusset plate, both ends of the bottom horizontal steel section are connected with the horizontal parts of the two end steel sections through flanges, and the inclined parts of the two end steel sections are respectively connected with the corresponding two end steel sections through the flanges The lower ends of the inclined rods are connected, and the gusset plates of the two end steel sections are respectively connected with the two main tower columns;

Each of the top horizontal rods includes a top horizontal steel section, and both ends of the top horizontal steel section are respectively connected with the upper ends of the corresponding two inclined rods through flanges.

In some embodiments, the beam support structure further includes:

Four lower support parts, the four lower support parts are connected with the two main tower columns and are located below the four end steel sections respectively, and the four lower support parts are used to support the lower trapezoidal truss .

In some embodiments, pads are arranged between the four lower support parts and the lower trapezoidal truss.

In some embodiments, a plurality of vertical oblong holes are provided on the gusset plate of each of the end steel sections, and the gusset plate is connected with the preset climbing cone of the corresponding main tower column through the vertical oblong hole. .

In some embodiments, the beam support structure further includes:

Four upper support parts, the four upper support parts are connected with the two main tower columns and located below both ends of the upper main beam, and the four upper support parts are used to support the upper main beam.

In some embodiments, the upper main beam includes:

a plurality of distribution beams, which are respectively arranged above the four upper support parts and the lower trapezoidal truss;

The main body of the Bailey beam, the main body of the Bailey beam is arranged above the distribution beam;

Special-shaped bent frame, the special-shaped bent frame is erected above the main body of the Bailey beam;

A cushion beam, the cushion beam is arranged between the special-shaped bent frame and the main body of the Bailey beam;

The bottom mold is arranged on the special-shaped bent frame.

In some embodiments, the Bailey beam body includes a first Bailey beam, a second Bailey beam, and a third Bailey beam, the first Bailey beam, the second Bailey beam, and the third Bailey beam, respectively. A simply supported structure is formed with the corresponding distribution beam, and the first Bailey beam and the second Bailey beam and the second Bailey beam and the third Bailey beam are laterally staggered.

The beneficial effects brought by the technical solution provided by the utility model include:

The embodiment of the present invention provides a cross beam support structure with the function of a main tower column cross brace, the cross beam support structure is provided with a lower trapezoidal truss, and two bottoms of the lower trapezoidal truss that are arranged laterally along the bridge are horizontally Both ends of the rod are respectively connected with the two main tower columns, so that the two bottom horizontal rods can be used as the main tower column cross braces, which saves the engineering amount of the original special main tower cross brace structure. In addition, the upper main beam used for the construction of the main tower cross beam is arranged on the lower trapezoidal truss, which effectively solves the problem that the traditional cross beam support often interferes with the main tower cross brace during the arrangement.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

1 is a schematic diagram of a cross-beam support structure with a main tower column cross-bracing function provided by an embodiment of the present utility model;

Fig. 2 is a side view of Fig. 1;

3 is a force-bearing view of a bottom horizontal rod provided by an embodiment of the present utility model;

FIG. 4 is a stress view of a lower trapezoidal truss provided by an embodiment of the present invention;

5 is a schematic diagram of a bottom horizontal rod provided by an embodiment of the present utility model;

6 is a schematic diagram of a gusset plate provided by an embodiment of the present invention;

7 is a schematic diagram of a main body of a Bailey beam provided by an embodiment of the present invention;

Fig. 8 is another schematic diagram of the main body of the Bailey beam provided by the embodiment of the present invention;

9 is a first schematic flow chart of a method for using a beam support structure with a main tower column cross brace function provided by an embodiment of the present utility model;

10 is a second schematic flowchart of a method for using a beam support structure with a main tower column cross brace function provided by an embodiment of the present utility model;

11 is a third schematic flow chart of a method for using a beam support structure with a main tower column cross brace function provided by an embodiment of the present utility model;

12 is a fourth schematic flow chart of a method for using a beam support structure with a main tower column cross brace function provided by an embodiment of the present utility model;

13 is a fifth schematic flowchart of a method for using a beam support structure with a main tower column cross brace function provided by an embodiment of the present utility model;

14 is a sixth schematic flow chart of a method for using a beam support structure with a main tower column cross brace function provided by an embodiment of the present utility model;

In the figure: 1, lower trapezoidal truss; 11, bottom horizontal rod; 12, inclined rod; 13, top horizontal rod; 14, connecting rod; 111, bottom horizontal steel section; 112, end steel section; 1121, horizontal part; 1122, inclined part; 1123, gusset plate; 1124, vertical oblong hole; 12, inclined rod; 13, top horizontal rod; 131, top horizontal steel section; 2, upper main beam; 21, distribution beam; 22, Bailey Beam main body; 221, the first Bailey beam; 222, the second Bailey beam; 223, the third Bailey beam; 23, the special-shaped bent frame; 24, the cushion beam; 4. Lower supporting part; 5. Climbing cone; 6. Upper supporting part; 7. Main tower beam; 8. Copy pad.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments of the present invention are some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The embodiment of the present utility model provides a cross beam support structure with the function of the main tower column cross support, which can solve the technical problem that the existing cross beam support and the main tower cross support are independent of each other and interfere with each other during use.

Referring to FIG. 1 and FIG. 2 , an embodiment of the present invention provides a cross beam support structure with the function of a main tower column cross brace. The cross beam support structure includes: a lower trapezoidal truss 1 and an upper main beam 2 .

The lower trapezoidal truss 1 includes two bottom horizontal rods 11 arranged laterally along the bridge, the two ends of each bottom horizontal rod 11 are respectively connected with the two main towers 3, and the upper main beam 2 is arranged in the Above the lower trapezoidal truss 1 , the upper main beam 2 is used to construct the main tower beam 7 .

The cross-beam support structure with the cross-bracing function of the main tower and the column in the embodiment of the present invention is provided with a lower trapezoidal truss 1, and two bottom horizontal rods 11 of the lower trapezoidal truss 1 are arranged laterally along the bridge. The ends are respectively connected with the two main tower columns 3, so that the two bottom horizontal rods 11 can be used as the main tower column cross braces, which saves the engineering amount of the original special main tower cross brace structure. In addition, the upper main beam 2 used for the construction of the main tower cross beam 7 is arranged on the lower trapezoidal truss 1, which effectively solves the problem that the traditional cross beam support often interferes with the main tower cross brace during the arrangement.

As an optional implementation, in an embodiment of the utility model, as shown in FIG. 1 and FIG. 2 , two ends of each of the bottom horizontal rods 11 are respectively connected with inclined rods 12 , and the upper ends of the two inclined rods 12 are respectively connected. A top horizontal rod 13 is connected therebetween. Optionally, the included angle between the two inclined rods 12 and the horizontal plane is preferably 45-60°.

The two bottom horizontal rods 11 , the two top horizontal rods 13 , and each of the bottom horizontal rods 11 and the inclined rods 12 at both ends are connected by connecting rods 14 .

Specifically, as shown in FIG. 3 and FIG. 4 , in the construction stage of the main tower column 3, due to the inclination of the main tower column 3, under the action of the dead weight G of the tower column, each of the bottom horizontal rods 11 is subjected to pressure Under the action of N1, in the construction stage of the main tower beam 7, the upper main beam 2 is under the action of the main tower beam 7's own weight, and the lower trapezoidal truss 1 bears the vertical downward concentrated load F. Under the action of the concentrated load F, all the The top horizontal rod 13 of the lower trapezoidal truss 1 bears the pressure value N3, the inclined rod 12 bears the pressure value N4, and the bottom horizontal rod 11 bears the tensile force value N2, and the value of N2 is equal to the value of N3. After the construction of the main tower beam 7 is completed, the internal force value of the bottom horizontal rod 11 becomes N1-N2. Therefore, the bottom horizontal rod 11 of the lower trapezoidal truss 1 can be used as the main tower column cross brace, and at the same time. The internal force of the bottom horizontal rod 11 can also be improved during use.

As an optional implementation, in an embodiment of the utility model, as shown in FIG. 1 and FIG. 5 , each of the bottom horizontal bars 11 includes a bottom horizontal steel section 111 and two sides of the bottom horizontal steel section 111 Each of the end steel sections 112 includes a horizontal portion 1121, an inclined portion 1122 and a gusset plate 1123. Both ends of the bottom horizontal steel section 111 are connected to the two end portions through flanges. The horizontal parts 1121 of the steel sections 112 are connected, and the inclined parts 1122 of the two end steel sections 112 are respectively connected with the lower ends of the corresponding two inclined rods 12 through flanges, and the two end steel sections 112 The gusset plates 1123 are respectively connected with the two main tower columns 3 .

Each of the top horizontal rods 13 includes a top horizontal steel section 131. Both ends of the 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 steel section 111 and the top horizontal steel section 131 can be adapted to the main tower beams 7 of different widths, and the utilization rate is high.

As an optional implementation manner, in an embodiment of the utility model, as shown in FIG. 1 , the beam support structure further includes: four lower support parts 4 , four of the lower support parts 4 and two main towers The columns 3 are connected and located below the four end steel sections 112 respectively, and the four lower support parts 4 are used to support the lower trapezoidal truss 1 . Further, the four lower support parts 4 can be shoe-shaped corbel structures, which can bear a large vertical load.

As an optional implementation manner, in an embodiment of the utility model, as shown in FIG. 6 , the gusset plate 1123 of each end steel section 112 is provided with a plurality of vertical oblong holes 1124 , and the gusset plate 1123 The vertical oblong hole 1124 is connected to the corresponding climbing cone 5 of the main tower column 3 to ensure that the bottom horizontal rod 11 does not bear vertical force.

As an optional implementation manner, in an embodiment of the utility model, as shown in FIG. 1 , the beam support structure further includes: four upper support parts 6 , four upper support parts 6 and two main towers The columns 3 are connected and located below both ends of the upper main beam 2, the four upper support parts 6 are used to support the upper main beam 2, and the four upper support parts 6 can be embedded parts corbels, bearing Small vertical loads. The upper main beam 2 used for the construction of the main tower beam 7 is respectively supported on the four upper support parts 6 of the lower trapezoidal truss 1 and the main tower column 3, which effectively reduces the span of the upper main beam 2, which is beneficial to The stress on the upper main beam 2 is reduced, and the structural engineering quantity is saved. Optionally, pads 8 are arranged between the four lower support parts 4 and the lower trapezoidal truss 1 .

As an optional implementation manner, in an embodiment of the utility model, as shown in FIG. 2 and FIG. 7 , the upper main beam 2 includes: a distribution beam 21 , a Bailey beam main body 22 , a special-shaped bent frame 23 , and a cushion beam 24 and bottom mold 25.

The distribution beam 21 is arranged above the four upper support parts 6 and the lower trapezoidal truss 1 , the Bailey beam main body 22 is arranged above the distribution beam 21 , and the special-shaped bent frame 23 is arranged on the Above the Bailey beam main body 22, the cushion beam 24 is arranged between the special-shaped bent frame 23 and the Bailey beam main body 22, and the bottom mold 25 is arranged on the special-shaped bent frame 23. The upper main beam 2 adopts multiple layers. After the arrangement, the main load-bearing structure is the main body 22 of the Bailey beam, and the material has good turnover.

As an optional implementation manner, in an embodiment of the utility model, as shown in FIG. 8 , the Bailey beam main body 22 includes 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 simply supported structure with the corresponding distribution beam 21 , and the first Bailey beam 221 and the second Bailey beam 221 The beams 222 and the second Bailey beams 222 and the third Bailey beams 223 are laterally staggered. Specifically, the distribution beam 21 can be an integral multiple of 3 m, which can better adapt to the structural form of the Bailey beam main body 22, and the Bailey beam main body 22 adopts a three-span simply supported arrangement, which can better adapt to the structure of the Bailey beam main body 22. Adapt to main tower beams 7 of different lengths.

The embodiment of the present utility model provides a method for using a beam support structure with the function of a main tower column cross brace, and the using method includes:

After the main tower column 3 is constructed to the preset height, two bottom horizontal rods 11 of the lower trapezoidal truss 1 are arranged laterally along the bridge, so that both ends of each bottom horizontal rod 11 are connected to the two main tower columns 3 respectively.

Continue to construct the main tower column 3 until the height of the main tower column 3 exceeds the main tower beam 7, assemble the lower trapezoidal truss 1 on the two bottom horizontal rods 11, and then set up the upper main beam 2 on the lower trapezoidal truss 1, and wait for the upper After the main beam 2 is erected, the construction of the main tower beam 7 is carried out.

Referring to Figures 9 and 10, the main tower column 3 is constructed by using climbing formwork. After the main tower column 3 is constructed to a certain height, two bottom horizontal rods 11 of the lower trapezoidal truss 1 are arranged laterally along the bridge. Both ends of the horizontal rod 11 are respectively connected with the two main tower columns 3 , and the bottom horizontal rod 11 is applied with a jacking force to adjust the internal force and the linear shape of the main tower column 3 . In addition, four lower support parts 4 and four upper support parts 6 are provided according to actual needs, and the bottom horizontal rod 11 is vertically supported on the four lower support parts 4 .

Referring to Figures 11 and 12, the construction of the main tower column 3 continues. After the construction height of the main tower column 3 exceeds the main tower beam 7, the lower trapezoidal truss 1 is assembled on the two bottom horizontal rods 11, and then the lower trapezoidal truss 1 is assembled. The main beam 2 is erected on the truss 1 .

Specifically, connect the oblique rods 12 and the connecting rods 14 of the lower trapezoidal truss 1 on the ground, then use the tower crane to hoist as a whole, and then use the tower crane to install the top horizontal rod 13 to complete the installation of the lower trapezoidal truss 1 .

The distribution beam 21 is hoisted by the tower crane. Because of the influence of the main tower column 3 and the climbing formwork, the tower crane cannot directly hoist the distribution beam 21 to the design position. A traverse wire rope can be set on the upper support part 6 to pull the distribution beam 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 hoisted into place as a whole by a tower crane respectively. Continue to assemble the second Bailey beam 222 into a whole on the ground, and hoist the second Bailey beam 222 in place as a whole by a tower crane. Continue to install the special-shaped bent frame 23, the cushion beam 24 and the bottom mold 25 to complete the installation of the upper main beam 2.

Referring to Figure 13 and Figure 14, the construction of the main tower beam 7 is carried out after the upper main beam 2 is erected. After the concrete of the main tower beam 7 reaches the design strength, the prestressed beam is tensioned, 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 orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the It is described, rather than indicated or implied, that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

It should be noted that in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or Any such actual relationship or order between these entities or operations is implied. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The above are only specific embodiments of the present invention, so that those skilled in the art can understand or realize the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the present invention.

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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