Support structure

Abstract

To provide a support structure capable of supporting an upper structure in an appropriate state even when there is a restriction on a site.SOLUTION: A support structure 1A supports a bridge 2 including lower structures 20 erected apart from each other and an upper structure installed between the lower structures 20. The support structure 1A includes columns 10 erected below an upper structure 20, support beams 11 fixed to or supported by the columns 10 and extended to a side opposite to the lower structure 20 erected near the columns 10, brace beams 12 fixed to or supported by the columns 10 and extended to the same side as the lower structure 20 erected near the columns 10, and contact structure members 13 arranged on the same side as the lower structure 20 erected near the columns 10 and brought into contact with the lower structure 20 or the upper structure 21. The support beam 11 includes a support member 110 arranged on the tip side of the support beam 11 and supporting the upper structure 21.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a support structure. [Background technology]

[0002] Bridges over which railways, automobiles, and the like pass are constructed by erecting a superstructure (such as a girder) between substructures (such as piers) that are erected at a distance from each other. In recent years, the load acting on the superstructure has changed as the traveling speed of railways, automobiles, and the like and the volume of traffic have increased, and changes in the rigidity of the superstructure over time have changed the natural period of the swaying and deflection that occurs in the superstructure, which can cause resonance phenomena in the superstructure. Therefore, Patent Document 1 discloses a technique for reinforcing bridges, in which new support structures are added between existing piers. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-094094 Summary of the Invention [Problem to be solved by the invention]

[0004] Referring to Figure 1 of Patent Document 1, a new support structure is erected in the center of two substructures. In this case, because the sway and deflection occurring in the superstructure are greatest at the center of the superstructure, it is ideal to erect the support structure so that the support point of the superstructure is located as close to the center of the superstructure as possible. However, for example, due to land constraints, it may not be possible to erect the support structure so that the support point of the superstructure is located as close to the center of the superstructure. Therefore, when there are land constraints, the further the support point of the superstructure is located from the center of the superstructure, the less likely it is to function as sufficient reinforcement.

[0005] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a support structure that can support a superstructure in an appropriate state even when there are land constraints. [Means for solving the problem]

[0006] In order to achieve the above object, a support structure according to one aspect of the present invention comprises: A support structure for supporting a bridge having substructures erected at a distance from each other and a superstructure installed between the substructures, A column erected below the superstructure; a support beam fixed to the column and extending to the opposite side of the lower structure erected closer to the column in the erection direction of the upper structure; a contact structure member that is arranged on the same side as the lower structure, which is erected closer to the column than the center of the column in the erection direction, and that is made to come into contact with the lower structure or the upper structure, The support beam is A support member is provided that is disposed on the tip side of the support beam and supports the upper structure. [Effects of the Invention]

[0007] According to a support structure according to one aspect of the present invention, it is possible to adequately support a superstructure even when there are land constraints.

[0008] Problems, configurations, and effects other than those described above will become apparent from the detailed description of the invention that follows. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a schematic perspective view showing an example of a support structure 1A according to a first embodiment. [Figure 2] 1 is a side view showing an example of a support structure 1A according to a first embodiment. [Figure 3] FIG. 3 is a cross-sectional view taken along the line III-III shown in FIG. [Figure 4]FIG. 4 is a cross-sectional view taken along line IV-IV shown in FIG. [Figure 5] FIG. 10 is a side view showing an example of a support structure 1B according to a second embodiment. [Figure 6] FIG. 10 is a side view showing an example of a support structure 1C according to a third embodiment. [Figure 7] FIG. 10 is a side view showing an example of a support structure 1D according to a fourth embodiment. [Figure 8] FIG. 10 is a side view showing an example of a support structure 1E according to a fifth embodiment. [Figure 9] FIG. 13 is a side view showing an example of a support structure 1F according to a sixth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. Below, the scope necessary for the explanation to achieve the object of the present invention will be shown schematically, and the scope necessary for explaining the relevant parts of the present invention will be mainly explained, with the omitted explanation being based on known technology. Furthermore, for the sake of convenience, each embodiment will be explained using an XYZ Cartesian coordinate system. Specifically, the erection direction of the superstructure 21 erected between the substructures 20 of the bridge 2 will be referred to as the "X direction," the width direction of the superstructure 21 perpendicular to the erection direction will be referred to as the "Y direction," and the height direction of the bridge 2 will be referred to as the "Z direction."

[0011] (First embodiment) FIG. 1 is a schematic perspective view showing an example of a support structure 1A according to the first embodiment. FIG. 2 is a side view showing an example of a support structure 1A according to the first embodiment. FIG. 3 is a cross-sectional view taken along line III-III shown in FIG. 2. FIG. 4 is a cross-sectional view taken along line IV-IV shown in FIG. 2. The support structure 1A is a structure that supports a bridge 2.

[0012] The bridge 2 includes, for example, an elevated bridge that is continuously erected within a site, or a bridge that is erected to cross a river or valley, or to intersect a railway or road at a three-dimensional level. If the bridge 2 is for a railway, a railway track is laid above the superstructure 21, and trains run on this track. If the bridge 2 is for an automobile, a road for automobiles is laid above the superstructure 21, and automobiles run on this road. Note that the support structure 1A is not limited to those that support bridges 2 called elevated bridges or bridges, as described above, but can support any type of bridge 2.

[0013] The bridge 2 comprises substructures 20 erected at a distance from each other and a superstructure 21 erected between the substructures 20.

[0014] The substructure 20 includes at least a pier, abutment, or column, and is supported by foundations, piles, etc. The pier, abutment, or column can be made of any material, such as steel, reinforced concrete, precast concrete, or prestressed concrete.

[0015] The superstructure 21 includes at least girders, and is arranged along the erection direction (X direction) of the superstructure 21. The girders can be made of any material, such as steel, reinforced concrete, precast concrete, or prestressed concrete. The cross-sectional shape of the girders can be any shape, such as a box shape, H shape, or T shape.

[0016] Although FIG. 1 illustrates a bridge 2 having two substructures 20 and three superstructures 21, the bridge 2 may be configured with structures other than those described above, depending on, for example, the type and use of the bridge 2. Also, in FIG. 1, only portions of the two superstructures 21 on both sides are illustrated, and only the central superstructure 21 is supported by a support structure 1A. However, the two superstructures 21 on both sides may also be supported by a support structure 1A. Furthermore, one superstructure 21 may be supported by multiple support structures 1A. For example, one superstructure 21 may be supported by two support structures 1A, or may be supported by a support structure 1A (shown in FIG. 1) installed close to one substructure 20 and a support structure 1A (not shown in FIG. 1) installed close to the other substructure 20.

[0017] The support structure 1A includes a column 10, a support beam 11, a bracing beam 12, and a contact structural member 13.

[0018] The pillar 10 is erected below the superstructure 21. At this time, the pillar 10 is erected while being supported by underground structures (not shown), such as foundations and piles. The position where the pillar 10 can be erected is restricted by railways, roads, rivers, valleys, etc. that pass below the superstructure 21, even within the site. For example, it is expected that the pillar 10 cannot be erected in the non-construction area A shown by the dashed line in FIG. 1. Therefore, it is preferable that the pillar 10 be erected as close as possible to the center of the superstructure 21 in the erection direction of the superstructure 21 (X direction in FIG. 1) while avoiding the non-construction area A. FIGS. 1 and 2 show a case where the pillar 10 is erected close to the substructure 20 on the left side, avoiding the non-construction area A. The pillar 10 can be erected at any position while avoiding the non-construction area A, and if the non-construction area A does not include the area near the center of the superstructure 21, the pillar 10 may be erected at or near the center of the superstructure 21. Furthermore, even if the non-construction area A does not exist, the support structure 1A may be used, in which case the pillar 10 can be erected at any position.

[0019] Like the substructure 20, the column 10 can be formed by any manufacturing method, such as steel, reinforced concrete, precast concrete, or prestressed concrete. In this embodiment, the column 10 is described as being composed of a single column, as shown in FIG. 1, for example. However, the column 10 may be composed of a plurality of column members. For example, the column 10 may be configured in a portal shape by including a plurality of column members erected at predetermined intervals in the width direction (Y direction) of the superstructure 21 and a connecting beam connecting the upper parts of the plurality of column members. In this case, the support beams 11 and the bracing beams 12 may be fixed to or supported by the connecting beam that constitutes the column 10.

[0020] The support beam 11 is fixed to the column 10 and extends on the opposite side to the substructure 20 erected closer to the column 10 in the erection direction (X direction) of the superstructure 21. In Figures 1 and 2, the substructure 20 erected closer to the column 10 corresponds to the substructure 20 on the left side of the column 10, and therefore the support beam 11 is shown extending from the column 10 towards the right side. Also, Figure 3 shows a case where multiple support beams 11 (specifically, four) are fixed to the column 10 at predetermined intervals in the width direction (Y direction) of the superstructure 21.

[0021] The support beam 11 is provided with a support member 110 that is disposed at the tip end of the support beam 11 and supports the superstructure 21. The support member 110 is composed of a bearing that is disposed between the lower surface 21a of the superstructure 21 and the upper surface 11a of the support beam 11. For example, a laminated rubber bearing with a steel plate inside, a steel bearing, or the like can be used for the bearing. Therefore, the superstructure 21 is supported by supports on both sides provided by the substructure 20 and an intermediate support provided by the support member 110. The intermediate support provided by the support member 110 does not necessarily have to be located at the center of the superstructure 21, but it is preferable that it be located closer to the center of the superstructure 21.

[0022] The bracing beam 12 is fixed to the column 10 and extends on the same side as the substructure 20 erected closer to the column 10 in the erection direction (X direction) of the superstructure 21. In other words, the bracing beam 12 extends on the opposite side of the column 10 from the support beam 11. In Fig. 1 and Fig. 2, the substructure 20 erected closer to the column 10 corresponds to the substructure 20 on the left side of the column 10, and therefore the bracing beam 12 is shown extending from the column 10 to the left. Moreover, Fig. 4 shows a case where multiple bracing beams 12 (specifically, four) are fixed to the column 10 at predetermined intervals in the width direction (Y direction) of the superstructure 21.

[0023] Like the column 10, the support beams 11 and the bracing beams 12 can be formed by any method, such as steel, reinforced concrete, precast concrete, or prestressed concrete. In this case, the support beams 11 and the bracing beams 12 may be formed as an integral beam and fixed to the column 10, or may be formed as separate beams and fixed to the column 10, respectively. Any fixing method can be used to fix the support beams 11 and the bracing beams 12. At least one of the support beams 11 and the bracing beams 12 may be supported by the column 10, and any supporting method can be used to support the support beams 11 and the bracing beams 12. In the second embodiment described later, a case where the support beams 11 and the bracing beams 12 are supported by the column 10 will be described.

[0024] The contact structure member 13 is a member that is arranged on the same side as the lower structure 20, which is erected closer to the column 10 than the center of the column 10 in the erection direction (X direction) of the upper structure 21, and is for contacting the lower structure 20 or the upper structure 21. The center of the column 10 is represented as the center line in the erection direction of the upper structure 21, as shown by the two-dot chain line in Figure 2.

[0025] In this embodiment, a case will be described in which the contact structure member 13 brings a part of the support structure 1A into contact with the upper structure 21. In the second, third, fifth, and sixth embodiments described later, similar to the first embodiment, a case will be described in which the contact structure member 13 brings a part of the support structure 1A into contact with the upper structure 21, and in the fourth embodiment described later, a case will be described in which the contact structure member 13 brings a part of the support structure 1A into contact with the lower structure 20.

[0026] The contact structure member 13 according to this embodiment is a gap filling member 130A that is arranged on the tip side of the support beam 12 and fills the gap GA between the upper structure 21 and the upper surface 12a of the support beam 12. In this case, as shown in Fig. 4, a plurality of contact structure members 13 (specifically, four) are arranged at predetermined intervals in the width direction (Y direction) of the upper structure 21.

[0027] The gap filling member 130A may be, for example, a flat jack, or may be expansive concrete or expansive mortar. After the body of the flat jack is placed in the gap GA, cement is injected into the body, widening the gap between the two plates above and below the flat jack, thereby filling the gap GA. Alternatively, expansive concrete or expansive mortar is poured into a box-shaped steel pipe with an inner lid after it is placed in the gap GA and allowed to harden. At this time, the inner lid is lifted by the expansion action of the expansive concrete or expansive mortar, thereby filling the gap GA. The gap filling member 130A is not limited to the above examples.

[0028] Although the number of support beams 11 and the number of bracing beams 12 are four as shown in FIGS. 3 and 4 in the above description, the number is not limited to four and can be changed as appropriate depending on, for example, the shape, width, weight, etc. of the superstructure 21. Therefore, the number of support beams 11 and the number of bracing beams 12 may be the same or different. Furthermore, the length of the support beams 11 and the bracing beams 12 in the erection direction of the superstructure 21 can be changed as appropriate depending on the distance from the column 10 to the intermediate support point, the distance from the column 10 to the substructure 20, etc. Furthermore, the width of the support beams 11 and the bracing beams 12 in the width direction of the superstructure 21 can be changed as appropriate depending on the shape, width, weight, length, etc. of the superstructure 21. Furthermore, the shape of the support beams 11 and the bracing beams 12 may be formed as a flat plate extending along the width direction of the superstructure 21. In this case, a plurality of support members 110 may be arranged on the flat support beam 11, and a plurality of contact structure members 13 may be arranged on the flat bracing beam 12.

[0029] When the bridge 2 is supported by the support structure 1A having the above-mentioned configuration, both ends of the superstructure 21 are supported by the substructure 20, and the superstructure 21 is supported at an intermediate support point located in the middle of the superstructure 21 by the support member 110 provided on the support structure 1A.

[0030] When the superstructure 21 sways or bends, the amount of displacement increases at the center of the superstructure 21, and a force F1 that pushes the support member 110, which functions as an intermediate fulcrum of the superstructure 21, acts downward, as shown in Fig. 2. The support beam 11, on the tip side of which the support member 110 is located, is fixed to the column 10 in a state where it extends in the erection direction of the superstructure 21, and therefore the force F1 acts as a rotational force F2 that rotates the fixed point of the column 10 to which the support beam 11 is fixed, toward the support beam 11.

[0031] At this time, a bracing beam 12 extending on the opposite side to the support beam 11 is fixed to the column 10, and a gap filling member 130A that fills the gap GA between the superstructure 21 and the upper surface 12a of the bracing beam 12 is arranged at the tip side of the bracing beam 12 as a contact structural member 13. Therefore, the rotational force F2 acting on the column 10 acts as a force F3 that pushes the tip side of the bracing beam 12 upward, but because the gap filling member 130A is arranged at the tip side of the bracing beam 12, a reaction force against the force F3 is obtained from the superstructure 21 via the gap filling member 130A. Therefore, even if the force F1 acts on the support member 110, a reaction force that cancels out the force F1 is obtained from the superstructure 21 via the gap filling member 130A, and rotation of the column 10 toward the support beam 11 side is suppressed. Therefore, in order to suppress the rotational displacement of the column 10 due to the rotational force F2, it is possible to extend the length of the support beam 11 without taking measures that would increase costs, such as improving the rigidity of the column 10, and the position of the intermediate support point of the support member 110 can be moved closer to the center of the superstructure 21.

[0032] As described above, with the support structure 1A according to this embodiment, even if there are site restrictions such as the non-construction area A, the positions of the intermediate supports of the support members 110 are closer to the center of the superstructure 21 than the erected positions of the columns 10, so that the superstructure 21 can be appropriately supported. Therefore, for example, the occurrence of resonance phenomena in the superstructure 21 can be effectively suppressed.

[0033] Furthermore, by using the gap filling member 130A as the contact structure member 13, the gap GA between the upper structure 21 and the upper surface 12a of the supporting beam 12 is filled. This makes it possible to reliably obtain a reaction force from the upper structure 21 with a simple configuration, thereby preventing the column 10 from rotating toward the supporting beam 11.

[0034] (Second embodiment) 5 is a side view showing an example of a support structure 1B according to the second embodiment. In the support structure 1A according to the first embodiment, the support beams 11 and the bracing beams 12 are fixed to the columns 10. In contrast, in the support structure 1B according to the second embodiment, the support beams 11 and the bracing beams 12 are formed as an integral beam and are supported by the columns 10 via beam support members 14. As the other basic configurations are the same as in the first embodiment, the following description will focus on the characteristic parts of this embodiment.

[0035] The beam support member 14 is composed of a bearing arranged between the upper surface 10a of the column 10 and the support beam 11 and the bracing beam 12. As with the support member 110, for example, a laminated rubber bearing with a steel plate inside or a steel bearing can be used for the bearing. In this embodiment, as shown in FIG. 5, two beam support members 14 are arranged side by side in the erection direction of the superstructure 21, but the number of beam support members 14 may be one or three or more, and the arrangement of the beam support members 14 is not limited to the example shown in FIG. 5. Note that the support beam 11 and the bracing beam 12 may be formed as separate beams. In this case, for example, the support beam 11 and the bracing beam 12 in a connected state may be supported by the column 10 via the beam support member 14.

[0036] As described above, according to the support structure 1B of this embodiment, as in the first embodiment, even if there are site constraints, the position of the intermediate support by the support members 110 is closer to the center of the superstructure 21 than the erected position of the column 10, so that the superstructure 21 can be appropriately supported. Therefore, for example, it is possible to effectively suppress the occurrence of a resonance phenomenon in the superstructure 21. The support beams 11 and the bracing beams 12 are supported by the column 10 via the beam support members 14. This makes it possible to reliably obtain a reaction force from the superstructure 21 with a simple configuration, and therefore it is possible to suppress the column 10 from rotating toward the support beam 11.

[0037] (Third embodiment) 6 is a side view showing an example of a support structure 1C according to the third embodiment. In the support structure 1A according to the first embodiment, a gap filling member 130A is used as the contact structure member 13 so as to fill the gap GA. In contrast, in the support structure 1C according to the third embodiment, the contact structure member 13 is a fixing member 131A that fixes the tip end side of the stay beam 12 to the superstructure 21. Since the other basic configuration is the same as in the first embodiment, the following description will mainly focus on the characteristic parts of this embodiment.

[0038] The fixing member 131A is, for example, a fixing metal fitting, and directly fixes the stay beam 12 and the superstructure 21 together. Alternatively, the fixing member 131A is a connecting member attached between the stay beam 12 and the superstructure 21, and fixes them indirectly via the connecting member. Note that the fixing member 131A may be one that uses a fixing method other than the above.

[0039] As described above, according to the support structure 1C of this embodiment, as in the first embodiment, even when there are site constraints, the position of the intermediate support by the support member 110 is closer to the center of the superstructure 21 than the erected position of the column 10, so that the superstructure 21 can be appropriately supported. Therefore, for example, it is possible to effectively suppress the occurrence of a resonance phenomenon in the superstructure 21. Furthermore, by using the fixing member 131A as the contact structure member 13, the bracing beam 12 and the superstructure 21 are fixed. This makes it possible to reliably obtain a reaction force from the superstructure 21 with a simple configuration, and therefore it is possible to suppress the column 10 from rotating toward the support beam 11.

[0040] (Fourth embodiment) 7 is a side view showing an example of a support structure 1D according to the fourth embodiment. In the support structure 1C according to the third embodiment, fixing members 131A that fix the tip ends of the bracing beams 12 to the upper structure 21 are used as the contact structural members 13. In contrast, in the support structure 1D according to the fourth embodiment, the contact structural members 13 are fixing members 131B that fix the tip ends of the bracing beams 12 to the lower structure 20. Since the other basic configurations are the same as in the first embodiment, the following description will mainly focus on the characteristic parts of this embodiment.

[0041] The fixing member 131B is, for example, a fixing metal fitting, and directly fixes the stay beam 12 and the substructure 20 together. Alternatively, the fixing member 131B is a connecting member provided between the stay beam 12 and the substructure 20, and fixes them indirectly via the connecting member. Note that the fixing member 131B may be one that uses a fixing method other than the above.

[0042] As described above, according to the support structure 1D of this embodiment, as in the first embodiment, even when there are site constraints, the position of the intermediate support by the support member 110 is closer to the center of the superstructure 21 than the erected position of the column 10, so that the superstructure 21 can be appropriately supported. Therefore, for example, it is possible to effectively suppress the occurrence of a resonance phenomenon in the superstructure 21. Furthermore, by using the fixing member 131B as the contact structure member 13, the bracing beam 12 and the substructure 20 are fixed. This makes it possible to reliably obtain a reaction force from the substructure 20 with a simple configuration, and therefore it is possible to suppress the column 10 from rotating toward the support beam 11.

[0043] (Fifth embodiment) 8 is a side view showing an example of a support structure 1E according to the fifth embodiment. In the support structure 1A according to the first embodiment, a gap filling member 130A is arranged on the tip side of the stay beam 12. In contrast, in the support structure 1E according to the fifth embodiment, the contact structure member 13 is a gap filling member 130B that is arranged on the upper surface 10a of the column 10 and fills the gap GB between the superstructure 21 and the upper surface 10a of the column 10. Since the other basic configurations are the same as those of the first embodiment, the following description will mainly focus on the characteristic parts of this embodiment.

[0044] As with the gap filling member 130A according to the first embodiment, the gap filling member 130B may be made of, for example, a flat jack, expansive concrete, or expansive mortar. The gap filling member 130B is disposed on the same side as the lower structure 20 (left side in FIG. 8) from the center of the pillar 10 (two-dot chain line in FIG. 8) with respect to the erection direction (X direction) of the upper structure 21. In this case, it is sufficient that the center of the gap filling member 130B is disposed so as to be located on the same side as the lower structure 20 from the center of the pillar 10.

[0045] As described above, according to the support structure 1E of this embodiment, as in the first embodiment, even when there are site constraints, the position of the intermediate support by the support member 110 is closer to the center of the superstructure 21 than the erected position of the column 10, so that the superstructure 21 can be appropriately supported. Therefore, for example, it is possible to effectively suppress the occurrence of a resonance phenomenon in the superstructure 21. Furthermore, by using a gap filling member 130B arranged on the upper surface 10a of the column 10 as the contact structure member 13, the gap GB between the superstructure 21 and the column 10 is filled. This makes it possible to reliably obtain a reaction force from the superstructure 21 with a simple configuration, which suppresses the column 10 from rotating toward the support beam 11 and also makes the bracing beam 12 unnecessary.

[0046] (Sixth embodiment) 9 is a side view showing an example of a support structure 1F according to the sixth embodiment. In the support structure 1A according to the first embodiment, the support beams 11 and the bracing beams 12 are fixed to the columns 10. In contrast, in the support structure 1F according to the sixth embodiment, brace members 111 and bracing members 120 are added when the support beams 11 and the bracing beams 12 are fixed to the columns 10. The other basic configuration is the same as in the first embodiment, so the following description will mainly focus on the characteristic parts of this embodiment.

[0047] The brace members 111 attached to the support beams 11 are members that connect the support beams 11 to the columns 10 when the support beams 11 are fixed to the columns 10. The brace members 111 connect, for example, near the middle of the support beams 11 to near the middle of the columns 10 in a diagonal manner, but the connection position of the brace members 111 can be changed as appropriate. Note that when multiple support beams 11 (four in the example of FIG. 3) are fixed to the columns 10, it is preferable that a brace member 111 is connected to each support beam 11.

[0048] The brace members 120 attached to the brace beams 12 are members that connect the brace beams 12 to the columns 10 when the brace beams 12 are fixed to the columns 10. The brace members 120 connect, for example, the tip of the brace beam 12 to the middle of the columns 10 in a diagonal manner, but the connection position of the brace members 120 can be changed as appropriate. Note that when multiple brace beams 12 (four in the example of FIG. 4) are fixed to the columns 10, it is preferable that a brace member 120 is connected to each brace beam 12.

[0049] As described above, according to the support structure 1F of this embodiment, as in the first embodiment, even if there are site constraints, the positions of the intermediate supports of the support members 110 are closer to the center of the superstructure 21 than the erected positions of the columns 10, so that the superstructure 21 can be appropriately supported. Therefore, for example, it is possible to effectively suppress the occurrence of resonance phenomena in the superstructure 21. Furthermore, by using the brace members 111 and 120 when fixing the support beams 11 and the brace beams 12 to the columns 10, the rigidity of the support beams 11 and the brace beams 12 can be improved.

[0050] (Other embodiments) The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the present invention, all of which are included in the technical concept of the present invention.

[0051] In the above embodiments, the features of the support structures 1A to 1F of each embodiment have been described, but the features of each embodiment may be combined as appropriate. For example, the support structures 1C to 1E of the third to fifth embodiments may be provided with the brace member 111 of the sixth embodiment, so that the support beam 11 and the column 10 are connected by the brace member 111. Furthermore, the support structures 1C and 1D of the third and fourth embodiments may be provided with the brace member 120 of the sixth embodiment, so that the brace member 120 connects the brace beam 12 and the column 10. [Explanation of symbols]

[0052] 1A~1F...Support structure, 2...Bridge, 10...Column, 10a...Top surface, 11...Support beam, 11a...Top surface, 12...Beam, 12a...Top surface, 13...Contact structural member, 14...Beam support member, 20...Substructure, 21...Superstructure, 21a...Bottom surface, 110...support member, 111...brace member, 120...brace member, 130A, 130B...gap filling members, 131A, 131B...fixing members

Claims

1. A support structure for supporting a bridge having substructures erected at a distance from each other and a superstructure installed between the substructures, A column erected below the superstructure; a support beam fixed to or supported by the column and extending to the opposite side of the lower structure erected closer to the column in the erection direction of the upper structure; a contact structure member that is arranged on the same side as the lower structure, which is erected closer to the column than the center of the column in the erection direction, and that is made to come into contact with the lower structure or the upper structure, The support beam is a support member disposed on a tip side of the support beam and supporting the upper structure; Support structure.

2. a bracing beam that is fixed to or supported by the column and extends on the same side as the substructure that is erected closer to the column in the erection direction; The contact structure member is Located at the tip side of the bracing beam, The support structure of claim 1 .

3. The contact structure member is A gap filling member that fills the gap between the upper structure and the upper surface of the bracing beam. The support structure of claim 2 .

4. The contact structure member is disposed on the top surface of the pillar, A gap filling member that fills the gap between the superstructure and the upper surface of the column. The support structure of claim 1 .

5. The contact structure member is A plurality of the sensors are arranged at predetermined intervals in the width direction of the upper structure. A support structure according to any one of claims 1 to 4.

Images