Novel support system for capping beam construction and construction method

Abstract

The invention discloses a novel support system for capping beam construction and a construction method.The novel support system for capping beam construction comprises a cross beam structure and a plurality of stand columns arranged above a bridge bearing platform in a supported mode, and the stand columns are arranged on the periphery of a pier column above the bearing platform in a surrounding mode to form a vertical supporting structure; the cross beam structure is erected on the tops of the vertical supporting structures corresponding to the pier columns, the tops of the pier columns upwards penetrate through the cross beam structure, and capping beam construction is conducted above the cross beam structure. The construction method has the effect of improving the construction efficiency of the bent cap.

Description

Technical Field

[0001] The present application relates to the field of cap beam construction, and in particular to a new support system and construction method for cap beam construction. Background Art

[0002] The cap beam in the bridge structure is the main load-bearing structure. The load of the bridge superstructure is transmitted to the lower piers and the pedestal foundation below the piers through the cap beam. The support system used in the cap beam construction provides the necessary support for the cap beam construction, ensuring that the beam can be stably placed and fixed during the construction process, providing a solid foundation for subsequent concrete pouring and maintenance work.

[0003] In related technologies, the support system is usually supported on the construction ground. Then, according to geological conditions, steel pipe piles need to be driven into the construction ground before the support system is erected to reinforce the construction ground under the action of the support system. However, this also affects the overall construction efficiency of the cap beam, so there is still room for improvement. Summary of the Invention

[0004] In order to improve the efficiency of cap beam construction, the present application provides a new support system and construction method for cap beam construction.

[0005] This application provides a new support system and construction method for cap beam construction using the following technical solutions: A new type of support system for cap beam construction includes a cross-beam structure and several columns supported above the bridge pier. Several of the columns surround the outer periphery of the piers above the pier to form a vertical support structure. The cross-beam structure is erected on the top of the vertical support structures corresponding to the several piers. The top of the pier passes through the cross-beam structure upward, and the cap beam construction is carried out above the cross-beam structure.

[0006] By adopting the above technical solution, several columns of the vertical support structure are supported on the bridge pedestal, and then the crossbeam structure is erected on several vertical support structures, thereby forming a support system with the pedestal as the load-bearing basis. During the construction of the crossbeam, a formwork can be erected on the crossbeam structure and concrete can be poured. The formed concrete structure is combined with the pier column. The load generated by the construction is transmitted to the pedestal under the pier column through the crossbeam structure and the columns, providing a structurally stable support system for the cap beam construction. There is no need to reinforce the ground separately, which reduces the material consumption of steel pipe piles. It is easy to build and is also conducive to improving the efficiency of the cap beam construction.

[0007] Preferably, a cushion beam is provided on the upper surface of the pedestal, with both ends of the cushion beam protruding from the outer periphery of the pedestal, and a plurality of the columns are supported above the two protruding ends of the cushion beam.

[0008] By adopting the above technical solution, when the bearing area of ​​the pedestal cannot meet the requirements of installing multiple pillars at the same time, a cushion beam is set on the pedestal, and the two ends of the cushion beam protrude from the outer periphery of the pedestal, thereby widening the bearing surface. A number of columns are supported above the two protruding ends of the cushion beam, so that the load generated by the construction of the cap beam is transmitted to the two ends of the cushion beam through the pillars, and finally transmitted to the pedestal through the cushion beam, which is beneficial to improving the structural stability and applicability of the support system.

[0009] Preferably, the side of the pedestal is provided with a steel corbel for supporting the cushion beam.

[0010] By adopting the above technical solution, steel corbels are arranged on the side of the pedestal to support the cantilevered end of the cushion beam, which is beneficial to improving the structural stability of the cushion beam.

[0011] Preferably, connecting rods are provided between adjacent columns.

[0012] By adopting the above technical solution, the connecting rod plays a role of connecting and transmitting force between adjacent columns, so as to connect several columns on the periphery of the pier to form a whole, which is beneficial to improving the stability of the vertical support structure.

[0013] Preferably, a connecting member is provided between the top of the column and the peripheral side of the pier column.

[0014] By adopting the above technical solution, when the height of the column exceeds 10 meters, strong winds will easily cause the column to shake in the morning. By setting connecting components on the top of the column and the side of the pier, the connection stability between the columns is improved, which is beneficial to improving the stability and bearing capacity of the vertical support components under wind load conditions.

[0015] Preferably, the crossbeam structure includes a number of load-bearing beams longitudinally and horizontally erected on adjacent columns, Bailey beams transversely and horizontally erected on the number of load-bearing beams, and a number of distribution beams laid on the surface of the Bailey beams.

[0016] By adopting the above technical solution, the load-bearing beam, as the main component erected horizontally in the longitudinal direction, directly bears the load from the upper structure. The Bailey beam, as a component erected horizontally in the transverse direction, can further enhance the load-bearing capacity of the structure. The distribution beam laid on the surface of the Bailey beam can distribute the load more evenly to each Bailey beam. By organically combining the load-bearing beam, Bailey beam, distribution beam and other components, a more stable overall structure can be formed, which helps to resist the influence of external loads and deformation and improve the stability of the entire structure.

[0017] A construction method for a new support system for cap beam construction comprises the following steps: S1: Several columns are supported on the pedestal to form a vertical support structure around the pier column; S2: The crossbeam structure is erected on top of the vertical support structures corresponding to several piers. The vertical support structure and the crossbeam structure constitute a support system to provide support for the cap beam construction.

[0018] By adopting the above technical solution, the vertical support structure formed by multiple columns and the beam structure constitute a support system with the pedestal as the load-bearing basis. During the construction of the cap beam, the generated load is transmitted to the pedestal under the pier through the beam structure and the columns, which is beneficial to improving the stability of the support during the construction of the cap beam.

[0019] Preferably, S3: after the support systems of several cap beams along the extension direction of the bridge are completed, a cap beam construction template is set up on the corresponding support system, and then a water circulation cooling system is constructed between the several support systems, the water circulation cooling system includes a water pool, a cooling pipe, a temperature detection component and a water temperature control component, the temperature detection component is used to detect the temperature of the concrete structure and the water temperature in the cooling pipe, and the water temperature control component is used to control the cooling water temperature; the water inlet and the water outlet of the cooling pipe are both connected to the water pool, and the cooling pipe of the water circulation cooling system passes through the casting cavities of several cap beams in sequence along the extension direction of the bridge to form a multi-cap beam synchronous cooling construction group; The cap beam pouring construction steps of the multi-cap beam synchronous cooling construction group are carried out in sequence along the extension direction of the bridge. When the first cap beam of the multi-cap beam synchronous cooling construction group is poured, the water circulation cooling system is started, the cooling water in the pool is controlled at the initial cooling temperature and is passed into the cooling pipe in the concrete structure of the first cap beam. The cooling water passes through the cooling pipe in the concrete structure of the first cap beam and exchanges heat with the concrete structure of the first cap beam. During the cooling process of the cap beam concrete structure, the temperature difference between the cooling water entering the interior of the cap beam concrete structure and the temperature inside the cap beam concrete structure does not exceed 25°C. When the temperature of the cooling water flowing out of the first cap beam concrete structure reaches the initial cooling temperature, the pouring construction of the next cap beam concrete structure is carried out, and the cooling water flowing out of the first cap beam concrete structure enters the next cap beam concrete structure at the initial cooling temperature and performs heat exchange; Repeat the above steps until all cap beams in the multi-cap beam synchronous cooling construction group enter the cooling stage at the same time; After the first cap beam concrete structure in the multi-cap beam synchronous cooling construction group completes the pouring and cooling steps, dismantle the cooling pipe at the first cap beam concrete structure, remove the first cap beam concrete structure from the multi-cap beam synchronous cooling construction group, and then add a new cap beam concrete structure to the end of the multi-cap beam synchronous cooling construction group to form a new multi-cap beam synchronous cooling construction group. Repeat the above operations until all the cap beams of the bridge complete the pouring and cooling steps.

[0020] By adopting the above technical solution, during the cap beam pouring construction, a large amount of heat needs to be released due to the hardening of concrete, which will cause the concrete temperature to rise and generate thermal stress. If the thermal stress is too large, the concrete will crack and be damaged at an early stage. Therefore, the concrete needs to be cooled. During the cap beam construction process, a water circulation cooling system is constructed at multiple cap beam positions along the extension direction of the bridge. The cooling pipes pass through multiple concrete structures and form a multi-cap beam synchronous cooling construction group. When the water temperature of the cooling water flowing out of the cap beam concrete structure reaches the standard initial cooling temperature, the next concrete pouring and cooling construction are carried out. Finally, a water circulation cooling system is used to cool down multiple concrete structures in the multi-cap beam synchronous cooling construction group. There is no need for a cooling system to correspond to each cap beam construction. This is beneficial to simplify the number of equipment and reduce overall energy consumption while ensuring the molding quality of the concrete structure.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. By supporting several columns of the vertical support structure on the bridge pier, and then erecting the crossbeam structure on several vertical support structures, a support system with the pier as the load-bearing foundation is formed. During the crossbeam construction, formwork can be erected on the crossbeam structure and concrete can be poured. The resulting concrete structure is combined with the pier. The load generated by the construction is transmitted to the pier below the pier through the crossbeam structure and columns, providing a structurally stable support system for the cap beam construction. There is no need for additional ground reinforcement, which reduces the material consumption of steel pipe piles, is easy to install, and is also conducive to improving the efficiency of the cap beam construction. 2. By setting a cushion beam on the cap, when the bearing area of ​​the cap cannot meet the requirements of installing multiple pillars at the same time, the two ends of the cushion beam protrude from the outer periphery of the cap, thereby widening the bearing surface. Several columns are supported above the two protruding ends of the cushion beam, so that the load generated by the construction of the cap beam is transmitted to the two ends of the cushion beam through the pillars, and finally transmitted to the cap through the cushion beam, which is conducive to improving the structural stability and applicability of the support system; 3. During the cap beam construction process, a water circulation cooling system is constructed at multiple cap beam positions along the extension direction of the bridge. The cooling pipes pass through multiple concrete structures and form a multi-cap beam synchronous cooling construction group. When the temperature of the cooling water flowing out of the cap beam concrete structure reaches the standard initial cooling temperature, the next concrete pouring and cooling construction are carried out. Finally, a water circulation cooling system is used to cool down multiple concrete structures in the multi-cap beam synchronous cooling construction group. There is no need for a cooling system to correspond to each cap beam construction. This is beneficial to simplify the number of equipment and reduce overall energy consumption while ensuring the molding quality of the concrete structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a new type of support system for cap beam construction in an embodiment of the present application.

[0023] Figure 2 It is a schematic diagram of a multi-cap beam synchronous cooling construction group and a water circulation cooling system in a new type of support system for cap beam construction in an embodiment of the present application.

[0024] Explanation of the accompanying reference numerals: 1. Pier; 2. Column; 21. Connecting rod; 22. Connecting member; 3. Cap; 31. Steel corbel; 4. Beam structure; 41. Load-bearing beam; 42. Bailey beam; 43. Distribution beam; 5. Water tank; 6. Pit cooling pipe; 7. Cap beam concrete structure; 8. Water temperature control assembly; 9. Pad beam. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-2 This application is described in further detail.

[0026] The present application discloses a new type of support system for cap beam construction, referring to Figure 1 and Figure 2 , a crossbeam structure 4 and several columns 2 supported on the bridge pedestal 3, several columns 2 surround the outer periphery of the pier 1 set above the pedestal 3 to form a vertical support structure, the crossbeam structure 4 is erected on the top of the vertical support structure corresponding to the several piers 1, and the top of the pier 1 passes through the crossbeam structure 4 upward. During the construction of the crossbeam, a formwork can be erected on the crossbeam structure 4 and concrete can be poured. The formed concrete structure is combined with the pier 1. The load generated by the construction is transmitted to the pedestal 3 under the pier 1 through the crossbeam structure 4 and the columns 2, providing a structurally stable support system for the cap beam construction. There is no need to reinforce the ground separately, which reduces the material consumption of steel pipe piles. It is easy to build and is also conducive to improving the efficiency of the cap beam construction.

[0027] In this embodiment, a cushion beam 9 is provided on the upper surface of the pedestal 3, and both ends of the cushion beam 9 protrude from the outer periphery of the pedestal 3. Several columns 2 are supported above the two protruding ends of the cushion beam 9. When the load-bearing area of ​​the pedestal 3 cannot meet the requirements of installing multiple columns 2 at the same time, both ends of the cushion beam 9 protrude from the outer periphery of the pedestal 3, thereby widening the bearing surface. Several columns 2 are supported above the two protruding ends of the cushion beam 9, so that the load generated by the construction of the cap beam is transmitted to the two ends of the cushion beam 9 through the pillars, and finally transmitted to the pedestal 3 through the cushion beam 9, which is beneficial to improving the structural stability and applicability of the support system.

[0028] In order to improve the structural stability of the cushion beam 9 , a steel corbel 31 for supporting the cushion beam 9 is provided on the side of the pedestal 3 , and the steel corbel 31 supports the bottom of the protruding end of the cushion beam 9 .

[0029] In order to improve the stability of the vertical support structure, connecting rods 21 are connected between adjacent columns 2. The connecting rods 21 play a role of connecting and transmitting force between adjacent columns 2, so as to connect several columns 2 on the periphery of the pier 1 to form a whole, which is beneficial to improving the stability of the vertical support structure.

[0030] In order to ensure the stability and bearing capacity of the vertical support structure under wind load conditions, a connecting member 22 is provided between the top of the column 2 and the side of the pier 1.

[0031] In this embodiment, the crossbeam structure 4 includes a number of load-bearing beams 41 mounted horizontally in the longitudinal direction on adjacent columns 2, Bailey beams 42 mounted horizontally in the transverse direction on the load-bearing beams 41, and a number of distribution beams 43 mounted on the surfaces of the Bailey beams 42. The load-bearing beams 41, as the main components mounted horizontally in the longitudinal direction, directly bear the load from the superstructure. The Bailey beams 42, as the components mounted horizontally in the transverse direction, can further enhance the load-bearing capacity of the structure. The distribution beams 43, mounted on the surfaces of the Bailey beams 42, can more evenly distribute the load to each Bailey beam 42. By organically combining the load-bearing beams 41, Bailey beams 42, and distribution beams 43, a more stable overall structure can be formed, which helps to resist the influence of external loads and deformation and improve the stability of the entire structure.

[0032] The present application also discloses a construction method of a new support system for cap beam construction, comprising the following steps: S1: A cage ladder is installed on site near the pier 1 for construction workers to install and use. Then, a number of columns 2 are vertically supported on the base 3 to form a vertical support structure around the pier 1.

[0033] When the width of the pedestal 3 is small, a cushion beam 9 is used to increase the width. The cushion beam 9 is welded together from six 600*200H-shaped steel sections, with 600*200H-shaped steel sections welded on both sides as corbels to closely adhere to the side piers. Steel corbels 31 are then installed on the sides of the pedestal 3 to support the cushion beam 9. The steel corbels 31 support the bottom of the protruding end of the cushion beam 9.

[0034] Column 2 is made of φ609mm steel pipe with a wall thickness of 10mm. Its height can be increased by connecting it. Column 2 is installed on the pad beam 9 at the side pier 1. The flange at the bottom of column 2 is welded to the top surface of pad beam 9. The other part of column 2 is installed on the surface of the base 3 at the middle pier 1.

[0035] Connecting rods 21, made of channel steel, are then installed between the tops of adjacent columns 2. When the height of a column 2 exceeds 10 meters, to ensure stability and load-bearing capacity under wind load conditions, connecting members 22 are used to connect and secure the steel columns 2 to the pier 1. These connecting members 22 can be in the form of clamps or pre-embedded climbing cones within the pier 1. Angle steel (or channel steel) connects the steel columns 2 and pier 1, with a spacing of no more than 6 meters.

[0036] S2: The crossbeam structure 4 is erected on top of the vertical support structures corresponding to the piers 1. The vertical support structures and the crossbeam structure 4 form a support system to provide support for the cap beam construction.

[0037] Specifically, the load-bearing beam 41 is placed on the column 2, and two types of steel sections, HN600*200 and HN900*300, are used. The two types of steel sections are combined according to different working conditions. When multiple sections are used, intermittent welding is used to connect the steel sections to form a whole.

[0038] The support system utilizes Bailey beams 42 as the main beam, erected on the load-bearing beams 41. Prior to installation, the system is assembled in sections at a temporary site and then transported to the construction site for hoisting. The system is laid out strictly in accordance with the support design drawings and measurement layout. Upon completion, each set of Bailey beams 42 is secured to the load-bearing beams 41 with stoppers to prevent subsequent displacement of the main beam. When reinforcing vertical bars are required, 10# I-beams or channel steel can be used to tighten against the upper and lower chords of the Bailey beams 42, ensuring they share the load with the vertical bars.

[0039] The distribution beams 43 are erected on the Bailey beams 42 and fixed to both sides of each group of Bailey beams 42 using U-shaped clips.

[0040] S3: After the support systems for several cap beams along the extension direction of the bridge are completed, and the cap beam construction templates are set up on the corresponding support systems, a water circulation cooling system is constructed between the several support systems. The water circulation cooling system includes a water pool 5, a cooling pipe 6, a temperature detection component and a water temperature control component 8. The temperature detection component is used to detect the temperature of the concrete structure and the water temperature in the cooling pipe 6, and a temperature sensor can be used. The water temperature control component 8 is used to control the temperature of the cooling water, and the water temperature control component 8 can be heated by a heating wire. It is also possible to use an external cooling water tank to pass cold water into the cooling pipe 6 for cooling.

[0041] In this embodiment, the water inlet and outlet of the cooling pipe 6 are both connected to the water pool 5, and the cooling pipe 6 of the water circulation cooling system passes through the casting cavity of several cap beams in sequence along the extension direction of the bridge to form a multi-cap beam synchronous cooling construction group. This application takes a multi-cap beam synchronous cooling construction group consisting of three adjacent cap beams as an example. The temperature detection components are respectively installed at the position before the cooling pipe 6 enters each cap beam concrete structure 7 and at the position after it flows out of each cap beam concrete structure 7. The water temperature control component 8 is installed at the cooling pipe 6 between adjacent cap beam concrete structures 7 and is arranged between the two temperature detection components.

[0042] The cap beam casting construction steps in the multi-cap beam synchronous cooling construction group are carried out in sequence along the extension direction of the bridge. When the first cap beam casting construction of the multi-cap beam synchronous cooling construction group is carried out, the water circulation cooling system is started, and the cooling water in the water pool 5 is controlled at the initial cooling temperature and passed into the cooling pipe 6 in the first cap beam concrete structure 7. The cooling water passes through the cooling pipe 6 in the first cap beam concrete structure 7 and exchanges heat with the first cap beam concrete structure 7. The initial cooling temperature is 15°C to 25°C. During the cooling process of the cap beam concrete structure 7, the temperature difference between the cooling water entering the cap beam concrete structure 7 and the temperature inside the cap beam concrete structure 7 does not exceed 25°C.

[0043] When the temperature of the cooling water flowing out of the first cap beam concrete structure 7 reaches the initial cooling temperature, the pouring construction of the next cap beam concrete structure 7 is carried out, and the cooling water flowing out of the first cap beam concrete structure 7 enters the next cap beam concrete structure 7 at the initial cooling temperature and performs heat exchange.

[0044] Repeat the above steps until all cap beams in the multi-cap beam synchronous cooling construction group enter the cooling stage at the same time.

[0045] After the first cap beam concrete structure 7 in the multi-cap beam synchronous cooling construction group has completed the pouring and cooling steps, the cooling pipe 6 at the first cap beam concrete structure 7 is dismantled, and the first cap beam concrete structure 7 is removed from the multi-cap beam synchronous cooling construction group. Then, a new cap beam concrete structure 7 is added to the end of the multi-cap beam synchronous cooling construction group to form a new multi-cap beam synchronous cooling construction group. The above operation is repeated until all the cap beams of the bridge have completed the pouring and cooling steps. Finally, a water circulation cooling system is implemented to cool down the multiple concrete structures in the multi-cap beam synchronous cooling construction group. There is no need for a cooling system to correspond to each cap beam construction. This is beneficial for simplifying the number of equipment and reducing overall energy consumption while ensuring the quality of concrete structure molding.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A new type of support system for cap beam construction, characterized by: It comprises a cross-beam structure (4) and a plurality of columns (2) supported on the bridge pedestal (3), wherein the plurality of columns (2) surround the outer periphery of a pier (1) arranged on the pedestal (3) to form a vertical support structure, the cross-beam structure (4) is erected on the top of the vertical support structure corresponding to the plurality of piers (1), the top of the pier (1) passes through the cross-beam structure (4) upward, and the cap beam construction is carried out on the cross-beam structure (4).

2. A new type of support system for cap beam construction according to claim 1, characterized in that: A cushion beam (9) is arranged on the upper surface of the support platform (3), the two ends of the cushion beam (9) protrude from the outer periphery of the support platform (3), and a plurality of columns (2) are supported above the two protruding ends of the cushion beam (9).

3. A new type of support system for cap beam construction according to claim 2, characterized in that: A steel bracket (31) for supporting the cushion beam (9) is arranged on the side of the support platform (3).

4. A new type of support system for cap beam construction according to claim 1, characterized in that: A connecting rod (21) is provided between adjacent columns (2).

5. A new type of support system for cap beam construction according to claim 1, characterized in that: A connecting member (22) is provided between the top of the column (2) and the peripheral side of the pier column (1).

6. A new type of support system for cap beam construction according to claim 1, characterized in that: The crossbeam structure (4) comprises a plurality of load-bearing beams (41) longitudinally and horizontally erected on adjacent columns (2), Bailey beams (42) transversely and horizontally erected on the plurality of load-bearing beams (41), and a plurality of distribution beams (43) laid on the surfaces of the Bailey beams (42).

7. A construction method for a new type of support system for cap beam construction as claimed in claim 1, characterized in that: The following steps are involved: S1: A plurality of columns (2) are supported on the pedestal (3) to form a vertical support structure around the pier column (1); S2: The crossbeam structure (4) is erected on the top of the vertical support structure corresponding to the plurality of piers (1), and the vertical support structure and the crossbeam structure (4) form a support system to provide support force for the cap beam construction.

8. The construction method of a new type of support system for cap beam construction according to claim 7 is characterized by: S3: After the support systems of several cap beams along the extension direction of the bridge are completed, the cap beam construction templates are set up on the corresponding support systems, and then a water circulation cooling system is constructed between the several support systems. The water circulation cooling system includes a water pool (5), a cooling pipe (6), a temperature detection component and a water temperature control component (8). The temperature detection component is used to detect the temperature of the concrete structure and the water temperature in the cooling pipe (6), and the water temperature control component (8) is used to control the cooling water temperature; the water inlet and the water outlet of the cooling pipe (6) are both connected to the water pool (5), and the cooling pipe (6) of the water circulation cooling system passes through the casting cavities of several cap beams in sequence along the extension direction of the bridge to form a multi-cap beam synchronous cooling construction group; The cap beam casting construction steps in the multi-cap beam synchronous cooling construction group are carried out in sequence along the extension direction of the bridge. When the first cap beam of the multi-cap beam synchronous cooling construction group is cast, the water circulation cooling system is started, the cooling water in the water pool (5) is controlled at the initial cooling temperature and is passed into the cooling pipe (6) in the first cap beam concrete structure (7), passes through the cooling pipe (6) in the first cap beam concrete structure (7) and exchanges heat with the first cap beam concrete structure (7). During the cooling process of the cap beam concrete structure (7), the temperature difference between the cooling water entering the cap beam concrete structure (7) and the temperature inside the cap beam concrete structure (7) does not exceed 25°C; When the temperature of the cooling water flowing out of the first cap beam concrete structure (7) reaches the initial cooling temperature, the pouring construction of the next cap beam concrete structure (7) is carried out, and the cooling water flowing out of the first cap beam concrete structure (7) enters the next cap beam concrete structure (7) at the initial cooling temperature and performs heat exchange; Repeat the above steps until all cap beams in the multi-cap beam synchronous cooling construction group enter the cooling stage at the same time; After the first cap beam concrete structure (7) in the multi-cap beam synchronous cooling construction group has completed the pouring and cooling steps, the cooling pipe (6) at the first cap beam concrete structure (7) is dismantled, and the first cap beam concrete structure (7) is removed from the multi-cap beam synchronous cooling construction group, and then a new cap beam concrete structure (7) is added to the end of the multi-cap beam synchronous cooling construction group to form a new multi-cap beam synchronous cooling construction group, and the above operation is repeated until all the cap beams of the bridge have completed the pouring and cooling steps.

Images