Multifunctional Hanging Integrated Machine and Its Construction Method

Abstract

The present invention relates to a multi-functional hanging integrated machine and a construction method. The hanging integrated machine includes: a plurality of adjustable diamond frames; a track provided on the top of the cast-in-place block; a sliding support installed on the diamond frame; a driving member provided on the track; a middle gantry that supports and connects two diamond frames; an upper cross beam that supports and connects two diamond frames; a first sling vertically arranged and connected to the middle gantry; a second sling vertically arranged and connected to the upper cross beam; a guide beam connected to the first sling and the second sling; a lower working platform connected to the bottoms of the first sling and the second sling; a bridge cast-in-place section constructed and connected to the cast-in-place block through the guide beam and the lower working platform; a hoisting structure that can be arranged on the upper cross beam to hoist the steel-concrete composite section and the steel box girder to be connected to the bridge cast-in-place section, thereby completing the bridge construction. The present invention realizes the integration and unification of the tooling and equipment required for the hybrid girder continuous rigid frame bridge, which can not only improve the construction efficiency but also reduce the construction cost.

Description

Technical Field

[0001] The present invention relates to the field of bridge construction engineering, and particularly to a multi-functional hanging integrated machine and its construction method. Background Art

[0002] The hybrid girder continuous rigid frame bridge is a common bridge type in long-span bridges, which has the advantages of strong spanning ability, simple stress state and fast construction speed. The main construction processes of the hybrid girder continuous rigid frame bridge include multiple important steps such as formwork erection, steel bar binding, concrete pouring and vibration, and precast steel girder hoisting. Based on the design concept, stress characteristics, construction technology and equipment development of the hybrid girder continuous rigid frame bridge, this type of bridge mostly adopts the cantilever casting method, that is, first use brackets or full hall scaffolds to cast the concrete of the 0# block on site; then, use specially designed tooling to symmetrically pour concrete in sections along both sides of the pier, and after the concrete reaches the required strength, tension the prestressed tendons, and the construction machinery and formwork move forward, and so on until the construction of the cantilever casting section is completed; finally, use a deck crane to hoist the steel-concrete composite section and the integral steel box girder section to complete the construction of the whole bridge. At present, the construction tooling for the concrete cantilever section of the continuous rigid frame bridge often uses a hanging basket for cantilever casting, so it is also called the hanging basket cantilever construction method. The cantilever casting method has many advantages such as not requiring heavy lifting equipment, saving construction sites, having little impact on the lower part of the bridge, the formwork can be used multiple times, saving steel consumption, the bridge alignment can be adjusted in time, and the construction quality is guaranteed.

[0003] The existing cantilever casting method needs to use brackets or full hall scaffolds when casting the concrete of the 0# block, needs to use mobile scaffolds in cooperation with hanging baskets when casting concrete in sections, and needs to use a deck crane when hoisting the steel-concrete composite section and the integral steel box girder section. Therefore, when casting the concrete of the 0# block, brackets or full hall scaffolds need to be installed, and they also need to be removed after construction. When casting concrete in sections, mobile scaffolds and hanging baskets need to be installed, and the mobile scaffolds and hanging baskets need to be removed after casting. When hoisting the steel-concrete composite section and the integral steel box girder, a deck crane needs to be installed, and the deck crane needs to be removed after completion. Thus, it can be seen that there are many types of operating equipment involved in the whole bridge construction process, the functions are single, and there are also defects such as long installation and disassembly time of the corresponding operating equipment in each construction stage and cumbersome operation. This cantilever casting method also has the disadvantage of high construction cost. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the prior art, and provide a multi-functional hanging integrated machine and its construction method to solve the problems of the existing cantilever casting method in construction, such as many types of equipment, single function, long installation and disassembly operation time, cumbersome operation and high construction cost.

[0005] The technical solution to achieve the above purpose is:

[0006] The present invention provides a multifunctional hanging integrated machine for constructing a bridge above a bridge pier. The multifunctional hanging integrated machine includes:

[0007] A plurality of adjustable diamond frames, which can be arranged on both sides of the bridge pier, and a cast-in-place formwork support surface is formed on the diamond frames to pour and form a cast-in-place block above the bridge pier;

[0008] A track provided on the top of the cast-in-place block;

[0009] A sliding support installed on the diamond frame, and the diamond frame can be slid on the track through the sliding support;

[0010] A driving member provided on the track, and the driving member is connected to the corresponding sliding support to drive the sliding support to move along the track;

[0011] A middle gantry for supporting and connecting the diamond frames sliding on two tracks;

[0012] An upper cross beam for supporting and connecting the cantilever ends of the diamond frames sliding on two tracks;

[0013] A first sling vertically arranged and connected to the middle gantry;

[0014] A second sling vertically arranged and connected to the upper cross beam;

[0015] A guide beam connected to the first sling and the second sling and arranged near the top of the cast-in-place block;

[0016] A lower operation platform connected to the bottoms of the first sling and the second sling and arranged near the bottom of the cast-in-place block; the bridge cast-in-place section connected to the cast-in-place block is constructed through the guide beam and the lower operation platform;

[0017] A hoisting structure that can be arranged on the upper cross beam to hoist a steel-concrete composite section and a steel box girder to be connected to the bridge cast-in-place section, thereby completing the bridge construction.

[0018] The multi-functional hanging and integrating machine of the present invention realizes the integration and unification of the tools and equipment required for a continuous rigid frame bridge with a hybrid beam. It can not only improve the construction efficiency, but also reduce the entry, installation, disassembly and usage costs of various large-scale construction equipment during the construction process, thereby reducing the construction cost. The main body of the multi-functional hanging and integrating machine of the present invention is a diamond-shaped frame. This diamond-shaped frame can be used as a formwork bracket for the cast-in-place block during the construction of the cast-in-place block. During the construction of the cast-in-place section of the bridge, the diamond-shaped frame is connected to the middle gantry and the upper cross beam, and can form a hanging basket that travels on the bridge to meet the construction of the cast-in-place section of the bridge. When hoisting the steel-concrete composite section and the steel box girder, the diamond-shaped frame, the middle gantry and the upper cross beam can also be used as the foundation of the hoisting structure to complete the construction of the steel-concrete composite section and the steel box girder, solving the problems of complex tooling equipment, many types and single functions existing in the existing cantilever casting method construction.

[0019] A further improvement of the multi-functional hanging and integrating machine of the present invention lies in that the diamond-shaped frame includes an adjusting rod, a fixed rod, a web member, an adjustable diagonal rod and a fixed diagonal rod;

[0020] The adjusting rod and the fixed rod are arranged in parallel with each other, and one end of the adjusting rod and the fixed rod is correspondingly arranged, and the other end is arranged away from each other;

[0021] The web member is supported and connected between the corresponding ends of the adjusting rod and the fixed rod;

[0022] One end of the adjustable diagonal rod is rotatably connected to the end of the fixed rod where the web member is connected, and the other end of the adjustable diagonal rod is rotatably connected to the end of the adjusting rod away from the web member; a plurality of adjusting holes are provided at the end of the adjustable diagonal rod close to the adjusting rod;

[0023] One end of the fixed diagonal rod is connected to the end of the adjusting rod where the web member is connected, and the other end of the fixed diagonal rod is connected to the end of the fixed rod away from the web member;

[0024] A plurality of adjusting holes are also provided at the end of the adjusting rod where the adjustable diagonal rod is connected.

[0025] A further improvement of the multi-functional hanging and integrating machine of the present invention lies in that it further includes a sensor provided on the driving member and a control system that is control-connected to the driving member;

[0026] The sensor is used to detect the driving stroke of the driving member;

[0027] The control system is connected to the sensor and is used to control the operation of the driving member according to the driving stroke detected by the sensor to realize the deviation correction of the movement of the two diamond-shaped frames.

[0028] A further improvement of the multifunctional hanging and hoisting integrated machine of the present invention lies in that the hoisting structure includes a crane jack arranged on the upper crossbeam, a guiding frame arranged on the upper crossbeam, a hanging frame connected to a steel strand that bypasses the guiding frame and passes through the crane jack, and a lifting appliance connected to the hanging frame.

[0029] The present invention also provides a construction method for a multifunctional hanging and hoisting integrated machine, including the following steps:

[0030] Adjust the diamond frame according to the designed inclined plane at the bottom of the bridge;

[0031] Arrange a plurality of diamond frames on the side of the pier;

[0032] Set up a formwork on the diamond frame and construct a cast-in-place block;

[0033] After the cast-in-place block is formed, remove the set formwork and diamond frame;

[0034] Set up a track on the top of the cast-in-place block;

[0035] Connect two diamond frames together through a middle gantry and an upper crossbeam, support and connect the middle gantry between the middles of the two diamond frames, and support and connect the upper crossbeam between the ends of the two diamond frames;

[0036] Install a sliding support on the side of the diamond frame away from the upper crossbeam, slide the sliding support on the corresponding track, and let the upper crossbeam connected to the diamond frame overhang to the outside of the cast-in-place block;

[0037] Set up a driving member on the track, and connect the driving member to the corresponding sliding support to drive the sliding support to move along the track;

[0038] Set up a vertical first sling on the middle gantry;

[0039] Connect a vertical second sling to the upper crossbeam;

[0040] Connect a guide beam arranged near the top of the cast-in-place block to the first sling and the second sling;

[0041] Connect a lower working platform arranged near the bottom of the cast-in-place block to the bottoms of the first sling and the second sling;

[0042] Construct the cast-in-place section of the bridge connected to the cast-in-place block section by section through the guide beam and the lower working platform. During the construction of the cast-in-place section of the bridge, adjust the positions of the guide beam and the lower working platform by moving forward to adjust the diamond frame and the track to meet the requirements of constructing the cast-in-place section of the bridge section by section;

[0043] After the construction of the cast-in-place section of the bridge is completed, a hoisting structure is installed on the upper cross beam, and the steel-concrete composite section and the steel box girder are hoisted by using the hoisting structure. The steel-concrete composite section is connected to the cast-in-place section of the bridge, and the steel box girder is connected to the steel-concrete composite section, thereby completing the construction of the bridge.

[0044] A further improvement of the construction method of the present invention lies in that when the diamond truss is arranged at the side of the pier, embedded parts are arranged at the side of the pier, and tie bolts are arranged between the oppositely arranged embedded parts for connection and fixation;

[0045] The diamond truss is detachably connected to the corresponding embedded parts.

[0046] A further improvement of the construction method of the present invention lies in that when the driving member drives the corresponding diamond truss to move, the travel data of the diamond truss is obtained;

[0047] Based on the travel data of the two diamond trusses, the travel deviation is calculated, and the next driving travel of the driving member is controlled according to the calculated travel deviation to achieve deviation correction.

[0048] A further improvement of the construction method of the present invention lies in that when constructing the cast-in-place section of the bridge, an upper working platform is arranged on the two diamond trusses;

[0049] A hanging basket is arranged at the end sides of the upper working platform and the lower working platform, and the cast-in-place section of the bridge is constructed by using the upper working platform and the hanging basket.

[0050] A further improvement of the construction method of the present invention lies in that when constructing the cast-in-place section of the bridge near the steel-concrete composite section, the guide beam is fixedly connected to the cast-in-place section of the bridge;

[0051] The lower working platform is hung on the guide beam;

[0052] The first sling and the second sling are removed to facilitate the hoisting of the steel-concrete composite section.

[0053] A further improvement of the construction method of the present invention lies in that before hoisting the steel box girder, two diamond trusses are added to the bottom of the upper cross beam, and corresponding tracks, sliding supports and driving members are arranged at the bottom of the arranged diamond trusses. Description of the Drawings

[0054] Figure 1 It is a schematic structural diagram of the diamond truss in the multifunctional hanging and hoisting machine of the present invention.

[0055] Figure 2 It is a schematic structural diagram of the multifunctional hanging and hoisting machine of the present invention as a formwork bracket for the cast-in-place block.

[0056] Figure 3This is a schematic structural diagram of the multi-functional hanging and hoisting integrated machine of the present invention as a hanging basket for the construction of the cast-in-place section of a bridge.

[0057] Figure 4 It is Figure 3 a partial enlarged schematic diagram at A1 in

[0058] Figure 5 It is Figure 3 a partial enlarged schematic diagram at A2 in

[0059] Figure 6 It is Figure 3 a partial enlarged schematic diagram at A3 in

[0060] Figure 7 It is Figure 3 a partial enlarged schematic diagram at A4 in

[0061] Figure 8 This is a schematic structural diagram of the automatic deviation correction control system and the driving member of the multi-functional hanging and hoisting integrated machine of the present invention.

[0062] Figure 9 This is a schematic structural diagram of the multi-functional hanging and hoisting integrated machine of the present invention as a hoisting machine for the steel-concrete composite section.

[0063] Figure 10 It is Figure 9 the front view of the structure shown.

[0064] Figure 11 This is a schematic structural diagram of the temporary fixation after the steel-concrete composite section is hoisted in place.

[0065] Figure 12 This is a schematic structural diagram of the multi-functional hanging and hoisting integrated machine of the present invention as a hoisting machine for the steel box girder.

[0066] Figure 13 It is Figure 12 the front view of the structure shown. Specific embodiments

[0067] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0068] Refer to Figure 1 , the present invention provides a multi-functional hanging and hoisting integrated machine and its construction method, which integrates multiple functions and equipment such as the formwork bracket of the cast-in-place block required for the hybrid beam continuous rigid frame bridge, the hanging basket for the cast-in-place section of the bridge, the light and heavy hoisting machines for the steel-concrete composite section and the steel box girder, realizes the unified design of the construction equipment and tooling, and overcomes the disadvantages of the complex tooling equipment, single equipment function and high construction cost of the traditional hybrid beam continuous rigid frame bridge. The multi-functional hanging and hoisting integrated machine and its construction method of the present invention will be described below in conjunction with the accompanying drawings.

[0069] Refer to Figure 1, showing a schematic structural view of the diamond-shaped frame in the multifunctional hanging and integrating machine of the present invention. Refer to Figure 2 , showing a schematic structural view of the multifunctional hanging and integrating machine of the present invention as a formwork bracket for cast-in-place blocks. Refer to Figure 3 , showing a schematic structural view of the multifunctional hanging and integrating machine of the present invention as a hanging basket for the construction of the cast-in-place section of a bridge. The following is a description of the multifunctional hanging and integrating machine of the present invention in conjunction with Figures 1 to 3 .

[0070] As Figures 1 to 3 shown, the multifunctional hanging and integrating machine of the present invention is used for constructing a bridge above a pier 10. The bridge is a composite beam, including both a concrete cast-in-place structure and a steel structure. The completed bridge spans across two piers 10. The multifunctional hanging and integrating machine of the present invention includes a diamond-shaped frame 21, a track 231, a sliding support 232, a driving member, a middle gantry 221, an upper cross beam 222, a first sling 223, a second sling 224, a guide beam 24, a lower working platform 25, and a hoisting structure. There are multiple diamond-shaped frames 21, and the diamond-shaped frame 21 is an adjustable structure. The diamond-shaped frame 21 can be arranged on both sides of the pier 10, and a cast-in-place formwork support surface is formed on the diamond-shaped frame 21 to pour and form a cast-in-place block 121 above the pier 10. At this time, the diamond-shaped frame 21 serves as a formwork bracket for the cast-in-place block 121. The track 231 is arranged on the top of the cast-in-place block 121. After the construction of the cast-in-place block 121 is completed, it is necessary to construct the cast-in-place sections of the bridge in the directions of the side span and the middle span on both sides of the cast-in-place block 121. The track 231 is laid on both sides of the top of the cast-in-place block 121 and is respectively used for the construction of the cast-in-place sections of the bridge in the corresponding directions. The sliding support 232 is installed on the diamond-shaped frame 21, and the diamond-shaped frame 21 can be slid on the track 231 through the sliding support 232. In conjunction with Figure 3 and Figure 5 shown, the driving member 281 is arranged on the track 231. The driving member 281 is connected to the corresponding sliding support 232 and is used to drive the sliding support 232 to move along the track, so as to realize pushing the diamond-shaped frame 21 to move along the track. In conjunction with Figure 3 and Figure 10As shown in the figure, the middle gantry 221 supports and connects the diamond-shaped frame 21 that slides on two tracks 231, and the upper cross beam 222 supports and connects the overhanging ends of the diamond-shaped frame 21 that slides on two tracks 231. Two tracks 231 are provided on both the side span side and the middle span side of the top of the cast-in-place block 121. A diamond-shaped frame 21 slides on each track 231. The two diamond-shaped frames 21 are connected together by the provided middle gantry 221 and upper cross beam 222 to form a frame that can be moved and adjusted on the top of the cast-in-place block 121. The first sling 223 is vertically arranged and connected to the middle gantry 221, the second sling 224 is vertically arranged and connected to the upper cross beam 222, and the first sling 223 and the second sling 224 are vertically arranged and extend to the bottom of the cast-in-place block 121. The guide beam 24 is connected to the first sling 223 and the second sling 224 and is arranged near the top of the cast-in-place block 121. The lower working platform 25 is connected to the bottom of the first sling 223 and the second sling 224 and is arranged near the bottom of the cast-in-place block 121. The bridge cast-in-place section 122 connected to the cast-in-place block 121 is constructed through the guide beam 24 and the lower working platform 25. The bridge cast-in-place section 122 is constructed in a segmented manner. First, based on the cast-in-place block 121, the diamond-shaped frames in the side span and middle span directions provided on the cast-in-place block 121 are used as the main support structures to hang the guide beam 24 and the lower working platform 25. The guide beam 24 and the lower working platform 25 provide a construction platform for the use of the bridge cast-in-place section 122. The formwork can be set up on the guide beam 24 and the lower working platform 25. After the No. 1 bridge cast-in-place section is poured, new tracks are set on the No. 1 bridge cast-in-place section, and then the diamond-shaped frame is moved forward to continue the construction of the next section of the bridge cast-in-place section. After the bridge cast-in-place section 122 is constructed, combined with Figure 9 and Figure 10 As shown in the figure, a lifting structure 29 can be set on the upper cross beam 222, and the steel-concrete composite section 123 and the steel box girder are lifted by the lifting structure 29 and connected to the bridge cast-in-place section 122, thereby completing the construction of the bridge.

[0071] The multi-functional hanging and integrating machine of the present invention takes the diamond-shaped frame as the main body, integrates and unifies the equipment required in each stage of bridge construction, improves the turnover rate and utilization rate of components in bridge construction, reduces the entry, installation, disassembly and usage costs of various large-scale construction equipment during the construction process, can reduce the construction cost, improve the construction efficiency, and well solves the problems of complex tooling equipment, many types and single functions existing in the existing cantilever casting method construction.

[0072] In a specific embodiment of the present invention, as Figure 1 shown, the diamond-shaped frame 21 includes an adjusting rod 211, a fixing rod 212, a web member 213, an adjustable diagonal rod 214 and a fixing diagonal rod 215;

[0073] The adjusting rod 211 and the fixing rod 212 are arranged parallel to each other, and one end of the adjusting rod 211 and the fixing rod 212 are arranged correspondingly, and the other end is arranged far away from each other;

[0074] The web bar 213 is supported and connected between the corresponding ends of the adjustment bar 211 and the fixing bar 212;

[0075] One end of the adjustable diagonal rod 214 is rotatably connected to the end of the fixed rod 212 connected to the web rod 213, and the other end of the adjustable diagonal rod 214 is rotatably connected to the end of the adjustment rod 211 away from the web rod 213; a plurality of adjustment holes 216 are provided at the end of the adjustable diagonal rod 214 close to the adjustment rod 211;

[0076] One end of the fixed oblique rod 215 is connected to the end of the adjusting rod 211 connected to the web rod 213, and the other end of the fixed oblique rod 215 is connected to the end of the fixing rod 212 away from the web rod 213;

[0077] A plurality of adjustment holes 216 are also provided at the end of the adjustment rod 211 connected to the adjustable diagonal rod 214 .

[0078] The shape of the diamond frame 21 can be adjusted by selectively connecting the adjustable oblique rod 214 and the corresponding adjustment hole 216 on the adjustment rod 211 to meet the use requirements of different functions.

[0079] Furthermore, a node plate 217 is provided at each node of the rhombus frame 21 , and ends of the adjusting rod 211 , the fixing rod 212 , the web rod 213 , the adjustable diagonal rod 214 and the fixed diagonal rod 215 are all connected to the corresponding node plate 217 .

[0080] In a specific embodiment of the present invention, Figure 2 As shown, when constructing the cast-in-place block 121, the inclination state of the adjustable diagonal rod 214 on the diamond frame 21 is adjusted so that the inclination angle of the adjustable diagonal rod 214 is consistent with the inclination angle of the bottom interface of the cast-in-place block 121. The side of the pier 10 is provided with an embedded part 111, which is used to connect the diamond frame 21. The embedded parts 111 on both sides of the pier 10 are arranged oppositely, and the two oppositely arranged embedded parts 111 are connected by a tension bolt 112. The arrangement of the tension bolt 112 can improve the structural strength of the embedded parts 111. The fixed rod 212 of the diamond frame 21 is fixedly connected to the embedded part 111 of the pier 10, and the adjustable diagonal rod 214 is used to support the template used for the construction of the cast-in-place block 121. Two diamond frames 21 are arranged on both sides of the pier 10, and the diamond frames 21 are used to provide support for the formwork. The formwork on the other two sides of the cast-in-place block 121 can be directly erected on the pier, or a back rib is provided on the diamond frame 21, so that the back rib extends out of the side of the pier 10 to form a protruding end, and a crossbeam is arranged on the protruding end, and the corresponding formwork can be erected using the crossbeam.

[0081] At this time, the diamond-shaped frame is assembled to form a formwork bracket for the construction of the cast-in-place block, realizing the first function of the hanging integrated machine of the present invention: the bracket function.

[0082] In a specific embodiment of the present invention, as Figure 3 , Figure 5 and Figure 8 shown, it further includes a sensor provided on the driving member 281 and a control system 30 that is connected to the driving member 281 for control. The sensor is used to detect the driving stroke of the driving member 281; the control system 30 is connected to the sensor and is used to control the operation of the driving member 281 according to the driving stroke detected by the sensor, so as to correct the movement of the two diamond-shaped frames.

[0083] The movements of the two diamond-shaped frames on one side of the mid-span need to be synchronized. Similarly, the movements of the two diamond-shaped frames on one side of the side span also need to be synchronized. The set sensor is used to detect the travel data of each diamond-shaped frame, and then according to the actual value of the forward movement of the diamond-shaped frame, the next movement of the diamond-shaped frame is controlled to achieve automatic deviation correction.

[0084] Specifically, in combination with Figure 10As shown in the figure, the diamond frames 21 on the left and right sides are respectively driven by the driving parts connected thereto. The control system controls the diamond frames 21 on the left and right sides to synchronously advance forward. The theoretical value of one stroke is 25 ± 2 cm. In each advancing stroke, the sensor connected to the driving part measures the actual value of the forward movement and feeds back data to the control system. The control system calculates the advancing deviation between the two sides, and then automatically adjusts and corrects the deviation in the next stroke to ensure that the diamond frames on both sides walk synchronously, realizing the walking deviation correction until reaching the designed position, and then pouring the cast-in-place section of the bridge. In this way, the cast-in-place sections of the bridge are poured section by section and the prestressed tendons are tensioned until all the concrete of the cast-in-place sections of the bridge is poured. For example: in the previous stroke, the driving part on the left advances forward by 25 + 1 = 26 cm (where 25 cm is the theoretical value and 1 cm is the error caused by various factors such as control accuracy, oil pressure, and measurement sensors, and the actual movement is 26 cm), and the driving part on the right advances forward by 25 - 2 = 23 cm (where 25 cm is the theoretical value and 2 cm is the error caused by various factors such as control accuracy, oil pressure, and measurement sensors, and the actual movement is 23 cm). And the cumulative stroke difference between the left and right sides in the previous stroke is -1 cm. Then the control system calculates the cumulative deviation between the left and right sides in this stroke as 26 - 23 - 1 = 2 cm. Then in the next advancing stroke, the control system automatically issues an instruction to make the left side advance 24 cm forward and the right side advance 26 cm forward to realize the advancing deviation correction. And in this advancing stroke, the sensor continues to measure the actual values of the left and right sides advancing in this stroke and feeds them back to the control system. The control system calculates the cumulative deviation (due to the influence of various factors such as control accuracy, oil pressure, and measurement sensors, there will always be a cumulative stroke difference between the two limbs, but the automatic deviation correction can always ensure that the cumulative stroke difference is within a certain range), and continues to correct the deviation in the next stroke, and so on until reaching the designed position.

[0085] Further, it further includes a reaction member 282 provided on the track 231. The reaction member 282 is connected to the driving member 281. A connecting member 283 is connected to the front end of the driving member 281. The connecting member 283 is connected to the sliding bearing 232. Preferably, the driving member is a hydraulic jack.

[0086] Still further, as Figure 3 and Figure 5As shown, in order to ensure the structural stability of the diamond frame 21, an anti-overturning structure 234 is provided at the rear of the diamond frame 21, and the anti-overturning structure 234 is connected to the adjustment rod 211 of the diamond frame 21. After the diamond frame 21 is moved into place, the other end of the anti-overturning structure 234 is connected to the track 231. The diamond frame 21 is fixedly connected to the track 231 by the anti-overturning structure 234, which can play an anti-overturning role for the diamond frame 21 and improve the safety of the operation. The rear of the diamond frame 21 refers to the side of the diamond frame 21 away from the construction position of the cast-in-place section of the bridge. Preferably, the anti-overturning structure 234 is a steel plate, one end of the steel plate is rotatably connected to the adjustment rod 211 of the diamond frame 21, and the other end of the steel plate is detachably connected to the track 231 by bolts. When the diamond frame 21 needs to be moved, the connection between the steel plate and the track is released, and after the diamond frame is moved into place, the steel plate is connected to the track again.

[0087] The track 231 is laid on the cast-in-place block 121 or the cast-in-place section 122 of the bridge through steel sleepers. In order to improve the structural stability of the track 231, a rear anchor beam 235 is arranged at the rear of the track 231. The rear anchor beam 235 is pressed on the two tracks 231 and is anchored and connected to the cast-in-place block 121 or the cast-in-place section 122 of the bridge by anchor bolts driven into the cast-in-place block 121 or the cast-in-place section 122 of the bridge.

[0088] A walking hanger 233 is also provided at the bottom of the adjusting rod 211 of the diamond frame 21 . A reverse wheel is provided at the bottom of the planet hanger 233 . The reverse wheel is provided in the track 231 .

[0089] Furthermore, combined with Figure 3 , Figure 6 and Figure 7 As shown, the lower working platform 25 includes a bottom longitudinal beam 251, and the bottom front and rear sides of the bottom longitudinal beam 251 are respectively provided with supporting beams, and scaffolding boards are laid on the bottom longitudinal beam 251, and guardrails are erected on the end sides. Hanging baskets 27 are arranged on both sides of the lower working platform 25. The bottoms of the first sling 223 and the second sling 224 are connected to the corresponding supporting beams.

[0090] Furthermore, an upper working platform 26 is provided on the top of the diamond frame 21, and a hanging basket 27 is provided on the cantilevered end side of the upper working platform 26. The upper working platform 26 is used for concrete pouring construction.

[0091] At this time, the diamond-shaped frames are assembled to form a movable frame, which is used for the step-by-step construction of the cast-in-place sections of the bridge, realizing the second function of the hanging all-in-one machine of the present invention: the hanging basket function.

[0092] In a specific embodiment of the present invention, Figure 9 and Figure 10As shown in the figure, after the construction of the cast-in-place section 122 of the bridge is completed, the hanging basket, the first sling, and the second sling are removed, and the bottom longitudinal beam 251 of the lower working platform 25 is hung on the guide beam 24. The guide beam 24 is fixedly connected to the cast-in-place section 122 of the bridge. Specifically, embedded parts can be set on the cast-in-place section 122 of the bridge, and then the guide beam 24 is fixedly connected to the embedded parts. Manually control the jack to push the diamond truss 21 backward, so that the cantilever part of the diamond truss 21 moves above the cast-in-place section of the bridge. Then, a hoisting structure 29 is set on the upper cross beam 222 of the diamond truss 21. The hoisting structure 29 includes a crane jack 291 arranged on the upper cross beam 222, a guide frame 292 arranged on the upper cross beam 222, a hanging frame 294 connected to the steel strand 293 that bypasses the guide frame 292 and passes through the crane jack 291, and a lifting tool 295 connected to the hanging frame 294. Preferably, two hoisting structures 29 are provided.

[0093] Connect with the steel-concrete composite section 123 through the lifting tool 295, and use the crane jack 291 to lift the steel-concrete composite section 123 to the connection position.

[0094] Combined Figure 11 As shown in the figure, after the steel-concrete composite section 123 is hoisted in place, a temporary fixed stiffening skeleton 241 is set on the cast-in-place section 122 of the bridge, and the steel-concrete composite section 123 is temporarily fixed through the temporary fixed stiffening skeleton 241.

[0095] Then, the guide beam 24 is lengthened, so that the lengthened section of the guide beam 24 supports the anchorage section on the steel-concrete joint section 123. Then, move the bottom longitudinal beam 251 on the guide beam 24 to move the bottom longitudinal beam 251 to the joint position. Then, set up the formwork and pour concrete to connect the cast-in-place section 122 of the bridge and the steel-concrete composite section 123.

[0096] At this time, the diamond truss and the hoisting structure are combined to form a light crane, which can hoist the steel-concrete composite section, realizing the third function of the hanging and hoisting integrated machine of the present invention: the light crane function.

[0097] Combined Figure 12 and Figure 13 As shown in the figure, after the installation of the steel-concrete composite section 123 is completed, based on the steel-concrete joint section 123, then hoist and install the steel box girder 124 to complete the construction of the bridge. After the steel box girder 124 is hoisted in place, it can be welded and fixed to the installed part of the bridge.

[0098] The track 231 is arranged on the steel-concrete composite section 123. To improve the stability of the structure, four diamond trusses 21 are set at this time. Since the construction of the side span part of the bridge has been completed at this time, the two diamond trusses 21 in the side span part can be moved to the mid-span construction position, and the four diamond trusses 21 are connected together through the upper cross beam 222 and the middle portal frame 221. The four diamond trusses 21 provide reliable support for the hoisting structure 29 to meet the hoisting requirements of the steel box girder 124.

[0099] At this time, the diamond-shaped frame and the hoisting structure are combined to form a heavy crane, which can hoist the steel box girder, realizing the fourth function of the integrated hanging and hoisting machine of the present invention, the heavy crane function.

[0100] The integrated hanging and hoisting machine of the present invention can carry out construction synchronously on two opposite piers. Construction in the side span and mid-span directions is carried out simultaneously on each pier. In this way, the force on the piers can be balanced, and the lengths of the cast-in-place sections of the side span and mid-span of the bridge are the same. After the cast-in-place section of the mid-span of the bridge is constructed, the steel-concrete composite section and the steel box girder are hoisted and installed, thus completing the closure of the bridge.

[0101] The present invention also provides a construction method for the multi-functional integrated hanging and hoisting machine. The following is an explanation of this construction method.

[0102] As Figure 1 and Figure 2 shown, the construction method of the present invention includes the following steps:

[0103] Adjust the diamond-shaped frame 21 according to the designed inclined plane at the bottom of the bridge;

[0104] Arrange a plurality of diamond-shaped frames 21 on the side of the pier 10;

[0105] Set up a formwork on the diamond-shaped frame 21 and construct the cast-in-place block 121;

[0106] After the cast-in-place block 121 is formed, remove the set formwork and diamond-shaped frame 21;

[0107] Combined with Figure 3 shown, set up a track 231 on the top of the cast-in-place block 121;

[0108] Connect two diamond-shaped frames 21 together through the middle gantry 221 and the upper cross beam 222. Support and connect the middle gantry 222 between the middles of the two diamond-shaped frames 21, and support and connect the upper cross beam 222 between the ends of the two diamond-shaped frames 21;

[0109] Install a sliding support 232 on the side of the diamond-shaped frame 21 away from the upper cross beam 222, and slide the sliding support 232 on the corresponding track 231, so that the upper cross beam 222 connected to the diamond-shaped frame 21 projects to the outside of the cast-in-place block 121;

[0110] Combined with Figure 5 shown, set up a driving member 281 at the position of the track 231, and connect the driving member 281 with the corresponding sliding support 232 to drive the sliding support 232 to move along the track 231;

[0111] Set up a vertical first sling 223 on the middle gantry 221;

[0112] Connect a vertical second sling 224 to the upper crossbeam 222;

[0113] Connect a guide beam 24, which is arranged near the top of the cast-in-place block 121, to the first sling 223 and the second sling 224;

[0114] Connect a lower working platform 25, which is arranged near the bottom of the cast-in-place block 121, to the bottoms of the first sling 223 and the second sling 224;

[0115] Construct the cast-in-place section 122 of the bridge connected to the cast-in-place block 121 section by section through the guide beam 24 and the lower working platform 25. During the construction of the cast-in-place section 122 of the bridge, adjust the positions of the guide beam 24 and the lower working platform 25 by moving the adjustable diamond truss 21 and the track 231 forward to meet the requirements of constructing the cast-in-place section 122 of the bridge section by section;

[0116] Combined with Figure 9 、 Figure 10 and Figure 12 As shown, after the construction of the cast-in-place section 122 of the bridge is completed, install a hoisting structure 29 on the upper crossbeam 222, use the hoisting structure 29 to hoist the steel-concrete composite section 123 and the steel box girder 124, connect the steel-concrete composite section 123 to the cast-in-place section 122 of the bridge, and connect the steel box girder 124 to the steel-concrete composite section 124, thereby completing the construction of the bridge.

[0117] In a specific embodiment of the present invention, as Figure 2 shown, when the diamond truss 21 is arranged at the side of the pier 10, arrange embedded parts 111 at the side of the pier 10, and set a tie bolt 112 between the relatively arranged embedded parts 111 for connection and fixation;

[0118] Detachably connect the diamond truss 21 to the corresponding embedded part 111.

[0119] Preferably, the detachable connection between the diamond truss 21 and the embedded part 111 is realized by bolts.

[0120] In a specific embodiment of the present invention, combined with Figure 5 and Figure 8 shown, when the driving part 281 drives the corresponding diamond truss 21 to move, obtain the travel data of the diamond truss 21;

[0121] Calculate the travel deviation based on the travel data of the two diamond trusses 21, and control the next driving travel of the driving part according to the calculated travel deviation to achieve deviation correction.

[0122] In a specific embodiment of the present invention, as Figure 3 shown, when constructing the cast-in-place section 122 of the bridge, arrange an upper working platform 26 on the two diamond trusses 21;

[0123] A hanging basket 27 is arranged at the end sides of the upper working platform 26 and the lower working platform 25, and the cast-in-place section 122 of the bridge is constructed by using the upper working platform 26 and the hanging basket 27.

[0124] In a specific embodiment of the present invention, as Figure 9 shown, when constructing the cast-in-place section 122 of the bridge near the steel-concrete joint section 123, the guide beam 24 is fixedly connected to the cast-in-place section 122 of the bridge;

[0125] The lower working platform 25 is hung on the guide beam 24;

[0126] The first sling 223 and the second sling 224 are removed to facilitate the hoisting of the steel-concrete joint section 123.

[0127] In a specific embodiment of the present invention, as Figure 12 and Figure 13 shown, before hoisting the steel box girder 124, two diamond frames 21 are added to the bottom of the upper cross beam 222, and corresponding tracks, sliding supports and driving members are arranged at the bottom of the arranged diamond frames 21. The two added diamond frames 21 are the diamond frames used for the side span construction.

[0128] The bridge of the present invention is provided on two bridge piers. The construction method of the present invention adopts the synchronous construction method of two bridge piers. At each bridge pier, construction is carried out synchronously towards the side span and the middle span, and the lengths of the cast-in-place sections of the side span and the middle span of the bridge are the same. After the cast-in-place section of the bridge is constructed, the steel-concrete composite section and the steel box girder are hoisted at the position of the middle span. When installing the steel-concrete composite section, the inner and outer formworks, the inner and outer guide beams, the suspension straps and the bottom supporting beams of the side-span hanging basket are removed. The inner formwork and the inner guide beam of the middle-span hanging basket are removed, and the backward track of the middle-span hanging basket is laid. The middle-span hanging basket is retracted by a jack controlled manually temporarily to anchor the bottom supporting beam to the cast bridge section. Then, a hydraulic continuous jack and a steel strand guiding frame are installed on the crossbeam of the hanging basket, and the lifting steel strands and the hanging frame are arranged. A lifting lug is welded on the top of the steel-concrete composite section. The lug is connected to the lifting tool and transported to the predetermined position. The steel strands are lowered, the hanging frame is connected to the lifting tool, and the steel-concrete composite section is lifted. After the steel-concrete composite section is lifted to the designed position, the guide beam is connected to the steel structure of the steel-concrete composite section as a temporary fixed stiffening skeleton to realize the temporary fixation of the steel structure of the steel-concrete composite section. The middle-span hanging basket and the outer formwork of the hanging basket are moved forward, the concrete of the steel-concrete composite section is poured. After the concrete reaches the strength, the outer formwork of the hanging basket and the bottom supporting beam are removed, and the connection between the guide beam and the steel structure of the steel-concrete composite section is disconnected. The forward track of the hanging basket is laid, the hydraulic jack control system is operated, the hanging basket is moved to the predetermined lifting position and temporarily anchored. Then, the side-span hanging basket is transported to the position of the middle-span hanging basket and assembled with the middle-span hanging basket by using connectors to form a heavy-duty deck crane capable of bearing the weight of the integral steel box girder section in the middle span. The integral steel box girder is barge-transported to the designed position, the hanging frame is lowered, the hanging frame is connected to the lifting tool, and the integral steel box girder is lifted by a continuous jack. After being lifted to the designed position, it is connected to the existing section to complete the closure of the whole bridge.

[0129] By unifying the design of the hanging basket of the cantilever casting section and the crane for hoisting the steel box girder in the middle span, the present invention forms a hanging and hoisting integrated machine applicable to the construction of super-large-span hybrid girder continuous rigid frame bridges, and the hanging and hoisting integrated machine has an automatic deviation correction function.

[0130] The hanging and hoisting integrated machine and its components have a total of 4 functions during the construction process of the whole hybrid girder continuous rigid frame bridge and are converted along with the construction process. They are respectively: ① Bracket function: The assembled multi-functional diamond-shaped frame is deformed by adjustable rods and used as the bracket for pouring the pier top cast-in-place block (also called the 0-block) after being connected by adjusting holes and bolts; ② Hanging basket function of the hanging and hoisting integrated machine: As the hanging basket of the concrete cantilever casting section, and its main load-bearing structure is formed by adjusting the deformation of the bracket used for pouring the 0-block; ③ Light-duty crane and stiffening skeleton functions of the steel-concrete composite section: In the light-load crane state of the hanging and hoisting integrated machine, the hoisting of the steel-concrete composite section is realized, and the guide beam of the hanging basket is used as the temporary fixed stiffening skeleton for the steel-concrete composite section; ④ Heavy-duty crane function of the integral steel box girder section: By assembling the side-span diamond-shaped frame and the middle-span diamond-shaped frame, a heavy-duty crane that can meet the requirements of the lifting weight of the integral steel box girder in the middle span is formed.

[0131] In addition, at present, during the forward movement of the hanging basket, two independent jacks are mainly arranged on the left and right limbs, and the forward movement is carried out manually. In order to overcome the problems of low forward efficiency and poor synchronization during the forward movement of the current hanging basket, the hanging and hoisting integrated machine is designed with a hydraulic jack and its control system that can realize self-walking and automatic deviation correction, ensuring the synchronization of the two limbs during the forward movement of the hanging basket and the function of automatic deviation correction when a walking deviation occurs. The hanging and hoisting integrated machine can realize the integration and unification of the tools and equipment required for the continuous rigid frame bridge with hybrid girders, which can not only improve the construction efficiency, but also reduce the entry, installation, disassembly and usage costs of various large-scale construction equipment during the construction process. In addition, the multi-functional hanging and hoisting integrated machine can also improve the safety during the cantilever casting and hoisting process and ensure the construction quality.

[0132] Compared with the prior art, the present invention has the following beneficial effects: The hanging and hoisting integrated machine integrates various functions and equipment such as the bracket for the 0# block, the hanging basket for the cantilever casting section, the light crane for the steel-concrete composite section, the temporary fixed stiffening skeleton, and the heavy crane for the integral steel box girder section required for the continuous rigid frame bridge with hybrid girders, realizing the unified design of the construction equipment and tools, and overcoming the disadvantages of complex construction equipment and tools, single equipment function, and high construction cost of the traditional continuous rigid frame bridge with hybrid girders. In addition, through the jack control system, the hanging and hoisting integrated machine realizes the forward movement and automatic deviation correction of the jacks, which can greatly improve the reliability and safety of the equipment.

[0133] The present invention has been described in detail with reference to the embodiments accompanied by the drawings. Those of ordinary skill in the art can make various variations to the present invention according to the above description. Therefore, some details in the embodiments should not constitute a limitation to the present invention, and the protection scope of the present invention will be defined by the scope defined in the appended claims.

Claims

1. A construction method of a multi-functional hanging integrated machine, characterized in that, The multifunctional hanging integrated machine is used for constructing a bridge above a pier. The multifunctional hanging integrated machine includes: A plurality of adjustable diamond frames, which can be arranged on both sides of the pier, and a cast-in-place formwork support surface is formed on the diamond frames to pour a cast-in-place block above the pier; A track arranged on the top of the cast-in-place block; A sliding support installed on the diamond frame, and the diamond frame can be slid on the track through the sliding support; A driving member arranged on the track, and the driving member is connected to the corresponding sliding support to drive the sliding support to move along the track; A middle gantry for supporting and connecting the diamond frames sliding on two tracks; An upper crossbeam for supporting and connecting the cantilever ends of the diamond frames sliding on two tracks; A first sling arranged vertically and connected to the middle gantry; A second sling arranged vertically and connected to the upper crossbeam; A guide beam connected to the first sling and the second sling and arranged near the top of the cast-in-place block; A lower working platform connected to the bottoms of the first sling and the second sling and arranged near the bottom of the cast-in-place block; the bridge cast-in-place section connected to the cast-in-place block is constructed through the guide beam and the lower working platform; A hoisting structure that can be arranged on the upper crossbeam to hoist the steel-concrete composite section and the steel box girder to be connected to the bridge cast-in-place section, thereby completing the bridge construction; The construction method includes the following steps: Adjust the diamond frame according to the designed inclined plane at the bottom of the bridge; Arrange a plurality of diamond frames on the side of the pier; Set up formwork on the diamond frame and construct the cast-in-place block; After the cast-in-place block is formed, remove the set formwork and diamond frame; Set up a track on the top of the cast-in-place block; Connect two diamond frames together through a middle gantry and an upper crossbeam, support and connect the middle gantry between the middles of the two diamond frames, and support and connect the upper crossbeam between the ends of the two diamond frames; Install a sliding support on the side of the diamond frame away from the upper crossbeam, slide the sliding support on the corresponding track, and let the upper crossbeam connected to the diamond frame cantilever to the outside of the cast-in-place block; Set up a driving member on the track, and connect the driving member to the corresponding sliding support to drive the sliding support to move along the track; Set up a vertically arranged first sling on the middle gantry; Connect a vertically arranged second sling to the upper crossbeam; Connect a guide beam near the top of the cast-in-place block to the first sling and the second sling; Connect a lower working platform near the bottom of the cast-in-place block to the bottoms of the first sling and the second sling; Construct the bridge cast-in-place section connected to the cast-in-place block section by section through the guide beam and the lower working platform, and during the construction of the bridge cast-in-place section, adjust the positions of the guide beam and the lower working platform by moving the diamond frame and the track forward to meet the requirements of constructing the bridge cast-in-place section section by section; After the cast-in-place section of the bridge is constructed, a hoisting structure is installed on the upper crossbeam. The steel-concrete composite section and the steel box girder are hoisted by using the hoisting structure, the steel-concrete composite section is connected to the cast-in-place section of the bridge, and the steel box girder is connected to the steel-concrete composite section, thereby completing the construction of the bridge.

2. The construction method according to claim 1, characterized in that, When the diamond truss is arranged at the side of the pier, embedded parts are arranged at the side of the pier, and tie bolts are arranged between the oppositely arranged embedded parts for connection and fixation; The diamond truss is detachably connected to the corresponding embedded parts.

3. The construction method according to claim 1, characterized in that, When the driving member drives the corresponding diamond truss to move, the travel data of the diamond truss is obtained; Based on the travel data of the two diamond trusses, the travel deviation is calculated, and the next driving travel of the driving member is controlled according to the calculated travel deviation to achieve deviation correction.

4. The construction method according to claim 1, characterized in that, When constructing the cast-in-place section of the bridge, an upper working platform is arranged on the two diamond trusses; A hanging basket is arranged at the end sides of the upper working platform and the lower working platform, and the cast-in-place section of the bridge is constructed by using the upper working platform and the hanging basket.

5. The construction method according to claim 1, characterized in that, When constructing the cast-in-place section of the bridge near the steel-concrete composite section, the guide beam is fixedly connected to the cast-in-place section of the bridge; The lower working platform is hung on the guide beam; The first sling and the second sling are removed to facilitate the hoisting of the steel-concrete composite section.

6. The construction method according to claim 1, characterized in that, Before hoisting the steel box girder, two diamond trusses are added to the bottom of the upper crossbeam, and corresponding tracks, sliding supports and driving members are arranged at the bottom of the arranged diamond trusses.

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