A scaffolding support platform for continuous beam segment installation of bridges

Abstract

The application discloses a support type support platform for continuous beam segmented installation of a bridge, and the base structure of the support type support platform comprises a pile foundation and an anti-overturning beam which is detachably and fixedly installed on the pile foundation; the pile foundation comprises a pile body which is driven into the ground and a ground bearing platform which is detachably and fixedly installed on the pile body; the two ends of the anti-overturning beam respectively extend along the length direction of the bridge to form overturning load bearing parts and are supported on the ground; the base structure of the application adopts the structure of the pile body combined with the bearing platform, has lower requirements on the ground quality, can effectively prevent settlement, has larger bearing capacity, prevents overturning by using the self-installed structure, does not need to set up separate anti-overturning facilities, is beneficial to finally guarantee the bridge construction quality and improve the construction efficiency and can be repeatedly used; since a large-area concrete foundation is not needed, the application is suitable for bridge construction of rivers and the like, reduces pollution caused to the environment, and greatly reduces the construction cost compared with the traditional concrete foundation.

Description

TECHNICAL FIELD

[0001] The present application relates to a construction auxiliary platform, in particular to a support type support platform for continuous beam segmented installation of a bridge. BACKGROUND

[0002] Large-span continuous steel structure bridge is a common bridge structure form; in particular, in the construction of large-span river-crossing bridge, due to the complex structure form and the great construction difficulty, the whole steel box beam construction usually adopts the construction method of prefabricating steel box beam segments and on-site splicing whole beams. When splicing the steel box beam segments on site, due to the large span, support needs to be formed at the splicing completed position between the segments, and an operation platform is also needed during the on-site hoisting and closing process. In the prior art, a support is usually set up on site to provide a safe operation platform, and the support is usually set up by water isolation, foundation laying and installing the support on the foundation. This method needs water isolation and foundation laying for maintenance, and the overall construction period is relatively long; and due to the serious foundation settlement of the river channel and the like and the difficulty in grasping the settlement, there is a settlement risk, which affects the construction quality of the bridge. At the same time, in order to prevent the support from overturning, the width of the foundation is large, the construction difficulty is increased, and after completion, a large area of environmental pollution is caused.

[0003] Therefore, it is necessary to improve the support operation platform support in the construction process of the existing continuous steel structure beam, which can complete the construction of the platform in a short time, improve the construction efficiency, effectively prevent settlement, ensure the construction quality of the bridge, and reduce the pollution to the environment. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a support type support platform for continuous beam segmented installation of a bridge, which is used for bridge construction, can complete the construction of the platform in a short time, improve the construction efficiency, effectively prevent settlement, ensure the construction quality of the bridge, and reduce the pollution to the environment.

[0005] The support type support platform for continuous beam segmented installation of a bridge of the present application comprises a support, a foundation structure for supporting the support, and a top support platform supported on the top of the support;

[0006] The foundation structure comprises a pile foundation and an anti-overturning beam detachably and fixedly installed on the pile foundation.

[0007] The pile foundation is two and arranged along the width direction of the bridge, comprising a pile body driven into the ground and a ground cushion platform detachably and fixedly installed on the pile body; the two ends of the anti-overturning beam extend along the length direction of the bridge to form an overturning load bearing part and are supported on the ground.

[0008] Further, the anti-overturning beam is provided with a plurality of anti-overturning support feet and supported on the ground by the anti-overturning support feet, the anti-overturning support feet can be adjusted to move up and down and be locked on the anti-overturning beam.

[0009] Further, the pile body of each pile foundation is four rectangularly distributed piles, and the ground pile cap is composed of cap beams which are detachably and fixedly connected between adjacent pile bodies; the anti-overturning beams are two, and the two anti-overturning beams are respectively and detachably and fixedly arranged on both sides of the pile foundation in parallel to the length direction of the bridge.

[0010] Further, the foundation structure further comprises a bearing beam which is detachably and fixedly connected between the two pile foundations, and the support is fixedly installed on the two pile foundations, the anti-overturning beams and the bearing beam in the width direction of the bridge.

[0011] The bearing beam is provided with a plurality of bearing support feet for supporting the ground, and the bearing support feet can be adjusted to move up and down and be locked on the bearing beam.

[0012] Further, the anti-overturning support foot comprises an anti-overturning bottom plate, an anti-overturning support rod and an anti-overturning adjusting nut, the anti-overturning support rod can slide up and down through the anti-overturning beam, the bottom end is connected to the anti-overturning bottom plate, the anti-overturning adjusting nut is threadedly connected to the anti-overturning support rod and upwardly supported on the bottom of the anti-overturning beam, the anti-overturning support rod extends upwardly out of the anti-overturning beam and is threadedly connected with an anti-overturning locking nut.

[0013] The bearing support foot comprises a bearing bottom plate, a bearing support rod and a bearing adjusting nut, the bearing support rod can slide up and down through the bearing beam, the bottom end is connected to the bearing bottom plate, the bearing adjusting nut is threadedly connected to the bearing support rod and upwardly supported on the bottom of the bearing beam, the bearing support rod extends upwardly out of the bearing beam and is threadedly connected with a bearing locking nut.

[0014] The cap beam is further provided with a cap support foot, comprising a cap bottom plate, a cap support rod and a cap adjusting nut, the cap support rod can slide up and down through the cap beam, the bottom end is connected to the cap bottom plate, the cap adjusting nut is threadedly connected to the cap support rod and upwardly supported on the bottom of the cap beam, the cap support rod extends upwardly out of the cap beam and is threadedly connected with a cap locking nut.

[0015] Further, each anti-overturning support foot comprises one anti-overturning bottom plate and four anti-overturning support rods which are rectangularly distributed, the anti-overturning bottom plate has a set area and is horizontally arranged.

[0016] The bearing support foot comprises a bearing bottom plate and four bearing support rods arranged in a rectangular pattern, the bearing bottom plate is arranged horizontally and has a set contact area with the ground.

[0017] The bearing platform support foot comprises a bearing platform bottom plate and at least two bearing platform support rods, the bearing platform bottom plate is arranged horizontally and has a set contact area with the ground.

[0018] Further, the pile body is a square steel pipe pile, and the square steel pipe pile is poured with concrete;

[0019] The bearing platform beam is fixedly provided with a bearing platform beam connecting plate at the end face of the pile body, and the bearing platform beam connecting plate is fixedly connected to the corresponding pile body by a bolt group; the anti-overturning beam is fixedly provided with an anti-overturning beam connecting plate at the outer side of the pile body, and the anti-overturning beam connecting plate is fixedly connected to the corresponding pile body by the same bolt group.

[0020] The opposite side of the bearing platform beam connecting plate of the anti-overturning beam is provided with a reinforcing plate, and the reinforcing plate is fixedly connected to the corresponding pile body by a bolt group.

[0021] Further, the width of the bearing platform beam is equal to the side of the pile body, the anti-overturning beam is fixedly connected to the corresponding bearing platform beam by a bolt group, and the anti-overturning beam extends downward to form an anti-overturning beam connecting wing with the same length as the corresponding bearing platform beam; the corresponding bearing platform beam extends downward to form a bearing platform beam connecting wing, and the anti-overturning beam connecting wing and the bearing platform beam connecting wing are fixedly connected by a bolt group.

[0022] Further, the end of the bearing beam is fixedly connected to the side of the corresponding anti-overturning beam, the upper surface and the lower surface are respectively provided with a covering plate covering the joint between the bearing beam and the anti-overturning beam, and the covering plates are fixedly connected by a bolt group; the left and right sides of the bearing beam are connected to the side of the anti-overturning beam by an angle steel connecting piece, one wing plate of the angle steel connecting piece is fixedly connected to the side of the anti-overturning beam by a bolt group, and the other wing plate is fixedly connected to the corresponding side of the bearing beam by a bolt group.

[0023] The support is formed by sequentially connecting steel truss units in the width direction of the bridge and upwardly, and the steel truss unit at the bottom is fixedly connected to two pile foundations, anti-overturning beams and bearing beams.

[0024] Further, the anti-overturning beam is a square box beam, and the square box beam is vertically provided with an anti-overturning beam rib plate along the length direction of the beam; the bearing beam is a square box beam, and the square box beam is vertically provided with a bearing beam rib plate along the length direction of the beam.

[0025] The support platform for continuous beam segment installation of the bridge of the present application adopts pile foundation as the detachable installation foundation of the construction support, and installs the anti-overturning measure by taking the pile foundation as the foundation, so that the overall stability and the bearing capacity are ensured; the structure can pre-punch the pile body in the dry season, and does not need water isolation and maintenance during installation and construction, so that the construction time of the support itself can be greatly shortened; at the same time, the structure of the pile body combined with the pile cap has low requirements for the ground quality, can effectively prevent settlement, has large bearing capacity, prevents overturning by using the self-installed structure, does not need to set up a separate anti-overturning facility, is beneficial to finally ensure the bridge construction quality and improve the construction efficiency; and since a large area of concrete foundation is not needed, the bridge construction of the river and the like is suitable, and the pollution to the environment is reduced; at the same time, the foundation structure can be detached after the bridge construction is completed, and is continuously applied to other bridge or opposite bridge construction, has the effect of energy saving and consumption reduction, and compared with the traditional concrete foundation, the construction cost is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0026] The present application will be further described below in combination with the drawings and embodiments.

[0027] Figure 1 It is a schematic view of the foundation structure of the present application;

[0028] Figure 2 It is a schematic view of the foundation structure of the present application; Figure 1 It is a view along the A direction;

[0029] Figure 3 It is a partial top view of the foundation structure;

[0030] Figure 4 It is a schematic view of the opposite-pulling fixed connection structure;

[0031] Figure 5 It is a sectional view of the bearing beam;

[0032] Figure 6 It is a sectional view of the anti-overturning beam;

[0033] Figure 7 It is an elevation view (along the transverse direction of the bridge) of the present application;

[0034] Figure 8 It is an elevation view (along the transverse direction of the bridge) of the present application; Figure 7 It is a view along the B direction. DETAILED DESCRIPTION

[0035] As shown in the figure: This embodiment of the bracket-type support platform for segmented installation of continuous beams in bridges includes a bracket 4, a foundation structure for supporting the bracket, and a top support platform 5 supporting the top of the bracket; the bracket can adopt any existing bracket structure that can be installed on the foundation structure, such as a truss structure or other erected support bracket; the top support platform 5 is an existing top support platform structure, such as... Figure 7 , Figure 8 As shown, a frame structure consisting of longitudinal beams and transverse beams can be used. Of course, to increase strength, the frame structure is also equipped with intermediate reinforcing beams. To adjust the height and facilitate dismantling after construction, jacks are also distributed on the frame structure to directly support the box girder segments, which will not be elaborated here. Of course, during installation, guy ropes used in the prior art can also be installed on the support to further increase safety, which will not be elaborated here.

[0036] The basic structure includes pile foundation 1 and anti-overturning beam 3 which is detachably fixed to the pile foundation;

[0037] The pile foundation 1 consists of two piles arranged along the width of the bridge 6, including piles 101 driven into the ground and detachable ground caps fixed to the piles. The anti-overturning beam 3 extends from both ends along the length of the bridge 6 to form overturning load bearing parts and is supported on the ground. After the piles 101 are driven into the ground, sufficient connection points should be reserved on the ground to ensure the installation of the ground caps and anti-overturning beams. The structure of the ground cap can adopt the existing pile cap structure used in pile driving. Detachable installation on the piles generally uses a bolt group installation method, where bolts can be welded or pre-embedded, etc., which will not be elaborated here. The support structure is used to splice and support box girder segments; therefore, in the length direction of the bridge, support for the box girder segments on both sides is only formed at the interface. Therefore, the anti-overturning beam needs to cover the entire width of the bridge, making its dimensions much larger than its length. Thus, while ensuring load-bearing capacity, overturning along the bridge's length must be prevented. The anti-overturning beam extends to both ends along the bridge's length, extending beyond the pile foundations. The excess length, based on the support height, should provide sufficient resistance to the overturning force. This is a technical solution that can be easily determined by those skilled in the art through simple judgment, ultimately preventing the support from overturning. The connection between the anti-overturning beam and the piles and / or ground cap is detachable, typically achieved through bolt groups, ensuring sufficient support strength.

[0038] In the embodiment, the anti-overturning beam 3 is distributed with a plurality of anti-overturning support feet 301 and supported on the ground through the anti-overturning support feet 301, the anti-overturning support feet 301 can be adjusted to move up and down and locked on the anti-overturning beam 3; as shown in the figure, a plurality of groups of anti-overturning support feet 301 are arranged and distributed along the length direction of the anti-overturning beam 3, which can ensure that the local stress can be avoided when bearing the overturning load; after the anti-overturning beam 3 is installed on the pile foundation 1, there is a distance between the bottom of the anti-overturning beam 3 and the ground, which cannot guarantee the stability of the anti-overturning structure; through the setting of the anti-overturning support feet 301, after the installation of the anti-overturning beam 3 is completed, the height of the anti-overturning support feet 301 is adjusted, so that it can be supported on the ground with a certain supporting force, so as to guarantee the realization of the anti-overturning purpose; before construction, the better construction method is to clean the loose ground surface at the position of the anti-overturning beam, and the hard ground surface is the best, of course, under the condition that the ground has enough supporting area (such as the bottom adopts a plate type structure), the requirement for the strength of the ground is not necessarily hard, the anti-overturning support feet will not sink, and the anti-overturning need can be achieved; the mode that the anti-overturning support feet 301 can be adjusted to move up and down and locked on the anti-overturning beam 3 can be realized through the existing mechanical structure, such as adjusting by nut locking or releasing, hydraulic support leg, mechanical type jack adjustment, etc., which can realize the purpose of the invention;

[0039] In the embodiment, the pile body 101 of each pile foundation 1 is in a rectangular distribution (all adopt the same reference sign), which means that the four pile bodies are respectively located at the four corners of the rectangle, which will not be repeated here; the ground pile cap is composed of cap beams 102 which are detachably and fixedly connected between adjacent pile bodies, as shown in the figure, the cap beams 102 are four (adopt the same reference sign), which are respectively fixed between adjacent pile bodies to form a rectangular structure; the anti-overturning beam 3 is two (adopt the same reference sign), and the two anti-overturning beams are respectively and detachably and fixedly arranged on both sides of the pile foundation parallel to the length direction of the bridge, that is, they are respectively arranged on two sides of the rectangle, which are the two sides consistent with the longitudinal direction of the bridge; each pile foundation is provided with two anti-overturning beams 3 and distributed on both sides, which can balance the anti-overturning function of the pile foundation and further form a stable anti-overturning support, thereby improving the safety and reliability of the structure.

[0040] In the embodiment, the foundation structure further comprises a bearing beam 2, the bearing beam 2 is detachably and fixedly connected between two pile foundations 1, and the support 4 is fixedly installed on the two pile foundations 1, the anti-overturning beams 3 and the bearing beam 2 in the width direction of the bridge 6; as shown in the figure, two anti-overturning beams 3 are arranged on each of the two pile foundations 1, the bearing beam 2 is fixedly connected to the inner anti-overturning beam and fixedly connected to the pile foundation 1 through the anti-overturning beam, thereby completing the overall fixation and forming a stable foundation; the inner side here refers to the side towards the bearing beam direction, which will not be repeated here;

[0041] The load bearing beam 2 is provided with a plurality of load bearing support feet 201 for supporting the ground, and the load bearing support feet 201 can be adjusted to move up and down and be locked on the load bearing beam 2;

[0042] As shown in the figure, a plurality of groups of load bearing support feet 201 are arranged along the length direction of the load bearing beam 2 to ensure that they can bear vertical loads in coordination and avoid local stress. After the load bearing beam is installed on the pile foundation 1, there is a distance between the bottom of the load bearing beam and the ground. Although the support is between the two pile foundations 1 and the corresponding anti-overturning beams 3, when the support 4 bears a large vertical load, the stability of the top of the support cannot be guaranteed due to the deformation of the support 4 and the load bearing beam 2 needs to bear part of the vertical load. After the load bearing beam 2 is installed, the height of the load bearing support feet 201 is adjusted to support the ground with a certain degree of force to increase the bearing capacity of the vertical load. Before construction, the loose ground surface is preferably cleaned at the part of the load bearing beam 2 to expose the hard ground. Of course, under the condition that the ground has enough support area (such as the bottom using a plate structure), the requirement for the strength of the ground is not necessarily hard, and the load bearing support feet 201 will not sink, which can meet the need of increasing the bearing capacity of the vertical load. The load bearing support feet 201 can be adjusted to move up and down and be locked on the load bearing beam 2, which can be realized by existing mechanical structures, such as adjusting by using nut locking or releasing, hydraulic support legs, mechanical jack adjustment, etc., which can achieve the purpose of the invention.

[0043] In this embodiment, the anti-overturning support foot 301 comprises an anti-overturning bottom plate 3011, an anti-overturning support rod 3012 and an anti-overturning adjusting nut 3013. The anti-overturning support rod 3012 can slide up and down through the anti-overturning beam, that is, a via hole for passing through the anti-overturning support rod 3012 needs to be formed on the anti-overturning beam, which will not be described here any more. The bottom end of the anti-overturning support rod 3012 is connected with the anti-overturning bottom plate 3011. The anti-overturning bottom plate 3011 is a plate structure, which can greatly increase the support area and avoid settlement under stress. The connection relationship between the bottom end of the anti-overturning support rod 3012 and the anti-overturning bottom plate 3011 can be fixed welding. The ball hinge connection is relatively optimal in structure, which has good support surface adaptation capability but higher cost. Since multiple anti-overturning support feet 301 form multi-point support, the fixed welding and other fixed connection modes can still achieve the purpose of the application. Therefore, the connection structure of welding is adopted in this embodiment. The anti-overturning adjusting nut 3013 is threadedly matched and arranged on the anti-overturning support rod and upwardly supports the bottom of the anti-overturning beam 3. The anti-overturning support rod extends upwardly out of the anti-overturning beam 3 and is threadedly matched with an anti-overturning locking nut. Of course, the anti-overturning support rod should be processed with external threads matched with the anti-overturning adjusting nut 3013 and the anti-overturning locking nut, which will not be described here any more. In order to ensure the support effect and avoid stress concentration, a pad with a large area can be arranged between the anti-overturning adjusting nut 3013 and the bottom (lower surface) of the anti-overturning beam 3, which will not be described here any more. In use, the anti-overturning bottom plate 3011 can be tightly abutted with the ground by upwardly adjusting the anti-overturning adjusting nut 3013. The anti-overturning locking nut is mainly arranged for preventing the anti-overturning support rod 3012 from being separated from the anti-overturning beam 3 during transportation and installation, which will not be described here any more.

[0044] The bearing support foot 201 comprises a bearing bottom plate 2011, a bearing support rod 2012 and a bearing adjusting nut 2013. The bearing support rod can slide up and down through the bearing beam 2. The bottom end is connected with the bearing bottom plate 2011. The bearing adjusting nut 2013 is threadedly matched and arranged on the bearing support rod 2012 and upwardly supports the bottom (lower surface) of the bearing beam 2. The bearing support rod 2012 extends upwardly out of the bearing beam 2 and is threadedly matched with a bearing locking nut. The structure of the bearing support foot 201 and the matching mode with the bearing beam are similar to those of the anti-overturning support foot 301 and the anti-overturning beam 3. At the same time, the technical effects are also relatively the same, which will not be described here any more.

[0045] The bearing platform beam 102 is further provided with a bearing platform support leg 103, which comprises a bearing platform bottom plate 1031, a bearing platform support rod 1032 and a bearing platform adjusting nut 1033. The bearing platform support rod 1032 is slidably arranged through the bearing platform beam 102, and the bottom end is connected to the bearing platform bottom plate 1031. The bearing platform adjusting nut 1033 is threadedly arranged on the bearing platform support rod 1032 and upwardly supports the bottom (lower surface) of the bearing platform beam 102. The bearing platform support rod 1032 extends upwardly from the bearing platform beam and is threadedly provided with a bearing platform locking nut. The structure of the bearing platform support leg 103 and the matching mode with the bearing platform beam are similar to those of the anti-overturning support leg 301 and the anti-overturning beam 3. Meanwhile, the technical effects are also similar, and thus will not be described herein again.

[0046] In the embodiment, each anti-overturning support leg 301 comprises one anti-overturning bottom plate 3011 and four anti-overturning support rods 3012 arranged in a rectangular shape. The anti-overturning bottom plate has a set area and is arranged horizontally. The set area means that the anti-overturning bottom plate is arranged according to the width and length of the anti-overturning beam. Generally, the width is consistent with the width of the anti-overturning beam, and the length does not interfere with the anti-overturning bottom plate 3011 of the adjacent anti-overturning support leg 301 and leaves a certain gap. Details are not described herein again. The four anti-overturning support rods 3012 arranged in a rectangular shape can uniformly transmit load, thereby forming a stable anti-overturning support.

[0047] The bearing support leg 201 comprises one bearing bottom plate 2011 and four bearing support rods 2012 arranged in a rectangular shape. The bearing bottom plate 2011 has a set area and is arranged horizontally. Similarly, the set area means that the bearing bottom plate 2011 is arranged according to the width and length of the bearing beam. Generally, the width is consistent with the width of the bearing beam, and the length does not interfere with the bearing bottom plate 2011 of the adjacent bearing support leg 201 and leaves a certain gap. Details are not described herein again. The four bearing support rods 2012 arranged in a rectangular shape can uniformly transmit load, thereby forming a stable vertical load support.

[0048] Since the bearing beam and the anti-overturning beam both bear vertical load, and the anti-overturning beam also bears overturning torque load, both have requirements in width and height. For the present application, in order to realize a stable foundation structure, the width of both is relatively wide, so that each bearing support leg 201 and anti-overturning support leg 301 can be arranged with four bearing support rods 2012 and four anti-overturning support rods 3012 arranged in a rectangular shape. Of course, according to different loads (support and bridge size), the size data of both will be different. The existing calculation method can be used to obtain the data through simple calculation, and details are not described herein again.

[0049] The support foot 103 of the bearing platform comprises a bearing platform bottom plate 1031 arranged horizontally and having a set contact area with the ground, and at least two bearing platform support rods 1032.

[0050] In the embodiment, the pile body 101 is a square steel pipe pile, and the square steel pipe pile is poured with concrete, so as to ensure the overall tensile and compressive capacity of the pile body and the bearing capacity of the pile foundation.

[0051] The bearing platform beam 102 is used for extending upwards and downwards along the end surface of the pile body 101 and is respectively provided with a bearing platform beam connecting plate 1021, 1021a (in the drawings, the upper and lower bearing platform beam connecting plates of the bearing platform beam 102 are denoted by the same reference sign 1021, 1021a, which does not affect the understanding of the scheme, and details are not described herein again), which is fixedly connected to the corresponding pile body 101 by a bolt group. As shown in the drawings, the bearing platform beam connecting plate 1021, 1021a extends upwards and downwards from the end plate welded to the end surface of the bearing platform beam 102 and has the same width as the bearing platform beam. The bolt group refers to a plurality of bolts distributed on the bearing platform beam connecting plate 1021, 1021a and forming a fastening connection, which has a cooperative stress effect, and details are not described herein again.

[0052] The anti-overturning beam 3 is arranged on the outer side of the pile body 101 and extends upwards and downwards and is respectively provided with an anti-overturning beam connecting plate 302, 302a (in the drawings, the upper and lower anti-overturning beam connecting plates of all the anti-overturning beams 3 are denoted by the same reference sign 302, 302a, which does not affect the understanding of the scheme, and details are not described herein again), which is fixedly connected to the corresponding pile body 101 by the same bolt group in tension with the opposite bearing platform beam connecting plate 1021, 1021a. The opposite side refers to the opposite sides of the corresponding pile body, and details are not described herein again. As shown in the drawings, the anti-overturning beam connecting plate 302, 302a extends upwards and downwards from the end plate welded to the end surface of the anti-overturning beam 3 and has the same width as the anti-overturning beam. Figure 4As shown, the opposite-pulling fixed connection refers to that the bolts of the bolt group pass through the pile body and are respectively connected to the corresponding cap beam connecting plate 1021, 1021a and the overturning prevention beam connecting plate 302, 302a, without welding, and the bolts of the bolt group can be poured together when pouring concrete in the pile body, thereby enhancing the strength of the pile body while ensuring the connection strength; the overturning prevention beam connecting plate 302, 302a is generally directly formed by the side plate of the overturning prevention beam 3, and can also be formed by welding, and both can achieve the purpose of the application, and will not be described here.

[0053] The opposite sides of the cap beam connecting plate 1021, 1021a of the cap beam 102 parallel to the overturning prevention beam 3 are respectively provided with a reinforcing plate 7 (all reinforcing plates use the same reference numeral, which does not affect the understanding of the scheme, and will not be described here), and are fixed to the corresponding pile body 101 through the bolt group opposite-pulling connection between the reinforcing plate 7; the height and width dimensions of the reinforcing plate 7 should be consistent with the cap beam connecting plate 1021, 1021a, as shown in Figure 4 As shown, the opposite-pulling fixed connection and the beneficial effects are consistent with the foregoing expressions, and will not be described here; only the bolts of the bolt group connecting the overturning prevention beam connecting plate 302, 302a and the bolts of the bolt group of the reinforcing plate should be staggered up and down during construction to avoid installation interference, and will not be described here.

[0054] In the embodiment, the width (horizontal dimension) of the cap beam 102 corresponds to the side of the pile body 101 (the side connected to the cap beam), and the overturning prevention beam 3 is parallel to and closely connected to the corresponding cap beam through the bolt group, and since the width of the cap beam 102 corresponds to the side of the pile body 101, the overturning prevention beam 3 is closely connected to the pile body 101 and the cap beam connected to the pile body, and the connection condition is formed, i.e. connected through the bolt group, thereby further improving the stability of the foundation; of course, the bolts of the bolt group should avoid the arrangement of the overturning prevention support foot 301 and the cap support foot 103, and will not be described here; at the same time, the overturning prevention beam 3 extends downward to form an overturning prevention beam connecting wing 303 which is equal in length to the corresponding cap beam (excluding the size of the cap beam connecting plate), and the lower part of the corresponding cap beam 102 extends downward to form a cap beam connecting wing (not shown in the figure, but does not affect the understanding of the scheme), and the overturning prevention beam connecting wing 303 and the cap beam connecting wing are fixedly connected through the bolt group after being overlapped, thereby further improving the integrity of the foundation structure and improving the stability.

[0055] In this embodiment, the end of the bearing beam 2 is close to the side of the anti-overturning beam 3, as shown, the two ends of the bearing beam are close to the inner side of the corresponding anti-overturning beam 3 respectively, and the upper surface and the lower surface are respectively covered with cover plates 203, 203a, and are fixedly connected by a bolt group, that is, the bolts of the bolt group can be welded on the bearing beam 2 and the anti-overturning beam 3, the cover plates 203, 203a (providing bolt holes corresponding to the bolts of the bolt group) cover the joints between the bearing beam and the anti-overturning beam on the upper and lower sides, and are fixedly connected by the bolt group, so as to complete the stable connection; the left and right sides (the two sides in the width direction of the bearing beam) of the bearing beam 2 are connected with the corresponding sides of the anti-overturning beam 3 through angle steel connecting pieces 202, 202a respectively, one side wing plate of the angle steel connecting piece 202, 202a is fixed to the side of the anti-overturning beam 3 through a bolt group (the bolts of the bolt group can be welded on the anti-overturning beam, or the anti-overturning beam can be welded with a nut and provided with a through hole, which are all existing mechanical connection structures, and will not be described here), and the other side wing plate is fixed to the side of the bearing beam 2 through a bolt group; of course, the angle steel connecting pieces 202, 202a on the left and right sides of the bearing beam 2 can be fixedly connected by a bolt group, or can be a separate bolt group (the bolts are welded on the bearing beam 2, or the bearing beam is welded with a nut and provided with a through hole, which is conducive to the screwing of the bolt), which can all achieve the purpose of the application; no matter what kind of bolt connection, it should avoid the setting of other components, such as bearing support feet 201, and will not be described here;

[0056] The support 4 is formed by steel truss units 401 which are connected in stages along the width direction of the bridge 6 and upward, and the steel truss unit at the bottom is detachably fixedly connected to the two pile foundations 1, the anti-overturning beams 3 and the bearing beams 2; as shown, the steel truss unit 401 is provided with a connecting part (generally a connecting flange) on the upper and lower sides, and the transversely adjacent steel truss units 401 are also detachably connected, and the steel truss units at the bottom of the support 4 are multiple and connected in stages in the transverse direction of the bridge, and are respectively connected with the two pile foundations 1 (mainly the bearing beam), the anti-overturning beams 3 and the bearing beams 2 fixed to the two pile foundations (generally flanges and fixed by bolts), and the upper surface heights of the bearing beam, the anti-overturning beam and the bearing beam should be kept flush during actual construction, but since the pile foundation 1, the anti-overturning beam 3 and the bearing beam are detachably connected, there may be points with inconsistent heights relative to the corresponding connecting points of the steel truss unit 401 at the bottom, such as the cover plate 203, and at this time, the corresponding connecting points of the steel truss unit 401 at the bottom should be adaptively improved, and will not be described here; in addition, the lower connecting points of the steel truss unit 401 at the bottom should avoid the support feet of the bearing beam, the anti-overturning beam and the bearing beam respectively, so as to ensure smooth assembly, and will not be described here;

[0057] In order to ensure the connection strength and integrity, the steel truss unit 401 at the bottom corresponding to the pile body is welded with a connecting plate on both sides in the bridge width direction, and is fixed and connected with the corresponding pile body through the connecting plate by a bolt group, and a compensation plate is added between the connecting plate and the pile body to further form a stable connection.

[0058] In the embodiment, the anti-overturning beam 3 is a square box beam, and an anti-overturning beam rib plate 304 is vertically arranged in the length direction of the anti-overturning beam in the anti-overturning beam, as shown in the figure, a plurality of anti-overturning beam rib plates 304 can be arranged as needed to ensure the load capacity, and the rib plates are generally fixed by welding; the load bearing beam 2 is a square box beam, and a load bearing beam rib plate 204 is vertically arranged in the length direction of the load bearing beam in the load bearing beam, and a plurality of load bearing beam rib plates 204 can also be arranged as needed and fixed by welding;

[0059] As shown in the figure, the heights of the pile cap beam 102, the anti-overturning beam 3 and the load bearing beam 2 are consistent, the upper surfaces and the lower surfaces are flush after assembly, and have good assembly effect and integrity; the anti-overturning beam connecting plate and the anti-overturning beam connecting wing are directly integrally formed and extended by the corresponding side plates of the anti-overturning beam, which is beneficial to ensure the strength of the anti-overturning beam and the integrity; similarly, the pile cap beam connecting wing is also integrally formed and extended by the corresponding side plates of the pile cap beam.

[0060] The construction process of the present application is as follows:

[0061] Cleaning and soil loosening→piling in sequence to the set depth and reserving the connecting part→concrete pouring in the pile to below the position of the tensioning and fixing connection→hoisting the pile cap beam and the anti-overturning beam and tensioning and fixing the connection→pouring the tensioning and fixing connection part→hoisting and connecting the load bearing beam→cleaning the relevant position soil→adjusting the anti-overturning support foot, the load bearing support foot and the pile cap beam support foot→splicing the support and installing the top support platform. The overall construction process of the present application is simple and efficient, and is a detachable structure, thereby improving the construction efficiency, being beneficial to shorten the construction period, and having the effects of energy saving, environmental protection and cost reduction.

[0062] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A bracket-type support platform for segmented installation of continuous beams in bridges, characterized in that: Includes a support frame, a base structure for supporting the support frame, and a top support platform supporting the top of the support frame; The basic structure includes pile foundations and anti-overturning beams that are detachably fixed to the pile foundations; The pile foundation consists of two piles arranged along the width of the bridge, including piles driven into the ground and ground caps that can be detached and fixed to the piles; the two ends of the anti-overturning beam extend along the length of the bridge to form overturning load bearing parts and are supported on the ground. The anti-overturning beam is provided with several anti-overturning support feet, which are supported on the ground. The anti-overturning support feet can be adjusted to move up and down and can be locked onto the anti-overturning beam. Each pile foundation consists of four piles arranged in a rectangular pattern. The ground cap is formed by a cap beam that is detachably and fixedly connected between adjacent piles. There are two anti-overturning beams, which are detachably and fixedly installed on both sides of the pile foundation, parallel to the length of the bridge. The basic structure also includes a load-bearing beam, which is detachably and fixedly connected between two pile foundations. The bracket is fixedly installed on the two pile foundations, the anti-overturning beam, and the load-bearing beam in the width direction of the bridge. The load-bearing beam is provided with several load-bearing support feet for supporting the ground, and the load-bearing support feet can be adjusted to move up and down and can be locked to the load-bearing beam. The pier beam is also provided with pier support feet, including a pier base plate, a pier support rod and a pier adjustment nut. The pier support rod can slide up and down through the pier beam and its bottom end is connected to the pier base plate. The pier adjustment nut is threadedly fitted to the pier support rod and supports the bottom of the pier beam upward. The pier support rod extends upward out of the pier beam and is threadedly fitted with a pier locking nut.

2. The bracket-type support platform for segmented installation of continuous beams in bridges according to claim 1, characterized in that: The anti-tipping support foot includes an anti-tipping base plate, an anti-tipping support rod, and an anti-tipping adjusting nut. The anti-tipping support rod can slide up and down through the anti-tipping beam and its bottom end is connected to the anti-tipping base plate. The anti-tipping adjusting nut is threadedly fitted onto the anti-tipping support rod and supports the bottom of the anti-tipping beam upwards. The anti-tipping support rod extends upwards out of the anti-tipping beam and is threadedly fitted with an anti-tipping locking nut. The load-bearing support foot includes a load-bearing base plate, a load-bearing support rod, and a load-bearing adjusting nut. The load-bearing support rod can slide up and down through the load-bearing beam and its bottom end is connected to the load-bearing base plate. The load-bearing adjusting nut is threadedly fitted onto the load-bearing support rod and supports the bottom of the load-bearing beam upwards. The load-bearing support rod extends upwards out of the load-bearing beam and is threadedly fitted with a load-bearing locking nut.

3. The bracket-type support platform for segmented installation of continuous beams in bridges according to claim 2, characterized in that: Each of the aforementioned anti-tipping support feet includes an anti-tipping base plate and four anti-tipping support rods arranged in a rectangular pattern. The anti-tipping base plate has a predetermined area and is horizontally positioned. The load-bearing support foot includes a load-bearing base plate and four load-bearing support rods arranged in a rectangular shape. The load-bearing base plate is horizontally arranged and has a set contact area with the ground. The support foot of the pedestal includes a pedestal base plate and at least two pedestal support rods. The pedestal base plate is horizontally arranged and has a set contact area with the ground.

4. The bracket-type support platform for segmented installation of continuous beams in bridges according to claim 3, characterized in that: The pile body is a square steel pipe pile, and concrete is poured inside the square steel pipe pile; The pile cap beam has connecting plates fixedly installed on its end face, extending upwards and downwards from its close contact with the pile body. These connecting plates are fixedly connected to the corresponding pile body by bolt groups. The anti-overturning beam has connecting plates fixedly installed on its outer side, extending upwards and downwards from its close contact with the pile body. These anti-overturning beam connecting plates are fixedly connected to the corresponding pile body by the same bolt group. A reinforcing plate is provided on the opposite side of the connecting plate of the pile cap beam parallel to the anti-overturning beam, and is fixedly connected to the corresponding pile body by bolt groups.

5. The bracket-type support platform for segmented installation of continuous beams in bridges according to claim 4, characterized in that: The width of the pier cap beam is equal to the width of the side connected to the pile body. The anti-overturning beam is closely attached to the corresponding pier cap beam and is detachably fixed by a group of bolts. The anti-overturning beam extends downward to form an anti-overturning beam connecting wing of the same length as the corresponding pier cap beam. The corresponding pier cap beam extends downward to form a pier cap beam connecting wing. The anti-overturning beam connecting wing and the pier cap beam connecting wing are overlapped and fixedly connected by a group of bolts.

6. The bracket-type support platform for segmented installation of continuous beams in bridges according to claim 4, characterized in that: The end of the load-bearing beam is closely attached to the side of the corresponding anti-overturning beam. The upper and lower surfaces are respectively covered with a cover plate covering the joint between the load-bearing beam and the anti-overturning beam, and are fixedly connected by a group of bolts. The left and right sides of the load-bearing beam are connected to the side of the anti-overturning beam by angle steel connectors. One wing of the angle steel connector is fixed to the side of the anti-overturning beam by a group of bolts, and the other wing is fixed to the corresponding side of the load-bearing beam by a group of bolts. The support structure is formed by splicing steel truss units along the width of the bridge and upwards, and the bottom steel truss unit is detachably and fixedly connected to the two pile foundations, the anti-overturning beam and the load-bearing beam.

7. The bracket-type support platform for segmented installation of continuous beams in bridges according to claim 6, characterized in that: The anti-overturning beam is a square box girder, and anti-overturning beam ribs are vertically arranged along the length of the beam inside the square box girder; the load-bearing beam is a square box girder, and load-bearing beam ribs are vertically arranged along the longitudinal direction of the beam inside the square box girder.

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