A steel beam jacking lateral deviation correction system and method

Abstract

The present invention discloses a lateral deviation correction system and method for jacking a steel beam, which relates to the technical field of steel beam construction and includes: a detection device and a jacking device. The detection device is arranged on the steel beam and the pier, and is used to measure the lateral deviation and longitudinal coordinates of the center position at the front end of the steel beam, and the lateral deviation of the intersection point of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the pier, so as to determine the longitudinal coordinates of the zero point of the steel beam deviation; the jacking device is electrically connected to the detection device, and the jacking device includes a plurality of jacking components. The plurality of jacking components are arranged under the two side webs of the steel beam, and the plurality of jacking components are used to horizontally and / or longitudinally jack the steel beam according to the longitudinal coordinates of the zero point of the steel beam deviation to correct the lateral deviation of the steel beam. The present invention can accurately detect the lateral deviation during the jacking process of the steel beam in real time, and then perform precise lateral deviation correction according to the detection results, ensuring the safety and quality during the construction process of the steel beam.

Description

Technical Field

[0001] The present invention relates to the technical field of steel beam construction, and particularly relates to a system and method for correcting the lateral deviation during the jacking of a steel beam. Background Art

[0002] With the rapid development of the economy, the traffic pressure is increasing day by day. In traffic engineering, bridge projects are often the controlling projects for the construction line. When crossing rivers, lakes, seas or existing lines, steel beams are a commonly used structural form. Limited by transportation conditions or construction site conditions, the jacking method is often used for the construction of steel beams.

[0003] The currently commonly used jacking method is the multi-point walking jacking method. A plurality of walking jacking devices are arranged longitudinally on the bridge according to the positions of temporary supports, and two rows of walking jacking devices are arranged transversely on the bridge according to the stress conditions. Due to the influence of various factors such as the friction coefficient of the jacking device, the stroke of the jack, and the hydraulic control system, it is very difficult for the two rows of jacking devices on the transverse side of the bridge to achieve completely synchronous jacking with the longitudinal side of the bridge. After multiple jacking strokes, a certain amount of lateral deviation will accumulate. If no lateral deviation correction is carried out, it will lead to various safety and quality problems such as incorrect assembly alignment of the steel beam, offset of the jack support position, and even damage to the steel beam. Summary of the Invention

[0004] Embodiments of the present invention provide a system and method for correcting the lateral deviation during the jacking of a steel beam to solve the technical problems in the related art that lateral deviation is likely to occur during the construction of existing steel beams, and there are safety risks and quality hidden dangers.

[0005] In a first aspect, embodiments of the present invention provide a system for correcting the lateral deviation during the jacking of a steel beam, including:

[0006] A detection device, which is arranged on the steel beam and the pier, and is used to measure the lateral deviation and longitudinal coordinates of the center position at the front end of the steel beam, and the lateral deviation of the intersection point of the designed longitudinal axis of the steel beam and the transverse center line of the steel beam at the pier, so as to determine the longitudinal coordinate of the zero point of the steel beam deviation;

[0007] A jacking device, which is electrically connected to the detection device, and the jacking device includes a plurality of jacking components. The plurality of jacking components are arranged under the two side webs of the steel beam, and the plurality of jacking components are used to horizontally and / or longitudinally jack the steel beam according to the longitudinal coordinate of the zero point of the steel beam deviation to correct the lateral deviation of the steel beam.

[0008] In some embodiments, the detection device includes:

[0009] A positioner, which is arranged at the center position at the front end of the steel beam, and is used to measure the lateral coordinate and longitudinal coordinate of the center position at the front end of the steel beam;

[0010] A deviation calculator, which is electrically connected to the locator, and is used to subtract the lateral coordinate of the center position at the front end of the measured steel beam from the lateral coordinate of the longitudinal axis of the designed steel beam to obtain the lateral deviation of the center position at the front end of the measured steel beam.

[0011] In some embodiments, the locator is a GNSS locator or a GPS locator.

[0012] In some embodiments, the detection device further includes:

[0013] Two rangefinders, which are respectively arranged on both sides of the pier and are electrically connected to the deviation calculator. The two rangefinders are used to measure the distances from both ends of the lateral center line of the steel beam at the pier to the corresponding sides of the pier respectively. The deviation calculator is further used to subtract the distances measured by the two rangefinders to obtain the lateral deviation of the intersection point of the longitudinal axis of the designed steel beam and the lateral center line of the steel beam at the pier.

[0014] In some embodiments, the rangefinder is a laser rangefinder.

[0015] In a second aspect, an embodiment of the present invention provides a method for correcting the lateral deviation of a jacked steel beam, including the following steps:

[0016] Measure the lateral deviation and longitudinal coordinates of the center position at the front end of the steel beam, and the lateral deviation of the intersection point of the longitudinal axis of the designed steel beam and the lateral center line of the steel beam at the pier, so as to determine the longitudinal coordinate of the zero point of the steel beam deviation;

[0017] Laterally and / or longitudinally jack the steel beam according to the longitudinal coordinate of the zero point of the steel beam deviation to correct the lateral deviation of the steel beam.

[0018] In some embodiments, the step of measuring the lateral deviation and longitudinal coordinates of the center position at the front end of the steel beam includes:

[0019] Measure the lateral coordinate and longitudinal coordinate of the center position at the front end of the steel beam;

[0020] Subtract the lateral coordinate of the center position at the front end of the measured steel beam from the lateral coordinate of the longitudinal axis of the designed steel beam to obtain the lateral deviation of the center position at the front end of the measured steel beam.

[0021] In some embodiments, the step of measuring the lateral deviation of the intersection point of the longitudinal axis of the designed steel beam and the lateral center line of the steel beam at the pier includes:

[0022] Measure the distances from both ends of the lateral center line of the steel beam at the pier to the corresponding sides of the pier respectively;

[0023] Subtract the two measured distances to obtain the lateral deviation of the intersection point of the longitudinal axis of the designed steel beam and the lateral center line of the steel beam at the pier.

[0024] In some embodiments, the steps of measuring the lateral deviation and longitudinal coordinates at the center of the front end of the steel beam, and the lateral deviation of the intersection point of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the pier to determine the longitudinal coordinates of the zero point of the steel beam deviation include:

[0025] According to the formula Determine the longitudinal coordinates of the zero point of the steel beam deviation;

[0026] Wherein, X is the longitudinal coordinate of the zero point of the steel beam deviation; X1 is the longitudinal coordinate at the center of the front end of the steel beam; X2 is the longitudinal coordinate of the lateral center line of the steel beam at the pier; ΔY1 is the lateral deviation at the center of the front end of the steel beam; ΔY2 is the lateral deviation of the intersection point of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the pier.

[0027] In some embodiments, the steps of laterally and / or longitudinally pushing the steel beam according to the longitudinal coordinates of the zero point of the steel beam deviation to correct the lateral deviation of the steel beam include:

[0028] Step 101, determine whether the zero point of the steel beam deviation is located between the first jacking components at the head and tail ends of the steel beam according to the longitudinal coordinates of the zero point of the steel beam deviation;

[0029] Step 102, if so, calculate the lateral horizontal forces of the lateral jacks of all jacking components and the target lateral deviation displacement of the lateral jack of the first jacking component at the head end of the steel beam, and control the lateral jacks of all jacking components to jack the steel beam for deviation correction according to the lateral horizontal forces of the lateral jacks of all jacking components and the target lateral deviation displacement of the lateral jack of the first jacking component at the head end of the steel beam;

[0030] Step 103, if not, use the lateral jacks of all jacking components to laterally move the steel beam until the zero point of the steel beam deviation is located between the first jacking components at the head and tail ends of the steel beam, and then execute Step 102.

[0031] The beneficial effects brought by the technical solution provided by the present invention include:

[0032] The embodiment of the present invention provides a steel beam jacking lateral deviation correction system and method. The correction system is provided with a detection device and a jacking device. The detection device can accurately detect the lateral deviation during the jacking process of the steel beam in real time, and the jacking device performs precise lateral deviation correction according to the detection result, ensuring the safety and quality during the construction of the steel beam. Description of the Drawings

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0034] Figure 1 It is a schematic diagram of a steel beam jacking lateral deviation correction system provided by an embodiment of the present invention;

[0035] Figure 2 It is another schematic diagram of a steel beam jacking lateral deviation correction system provided by an embodiment of the present invention;

[0036] Figure 3 It is a schematic diagram of implementing the lateral deviation of a steel beam jacking provided by an embodiment of the present invention;

[0037] Figure 4 It is another schematic diagram of implementing the lateral deviation of a steel beam jacking provided by an embodiment of the present invention;

[0038] In the figure:

[0039] 1. Positioner;

[0040] 2. Deviation calculator;

[0041] 3. Rangefinder;

[0042] 4. Jacking assembly;

[0043] 5. Jacking controller;

[0044] 6. Steel beam;

[0045] 7. Pier. Detailed implementation manners

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0047] The embodiments of the present invention provide a steel beam jacking lateral deviation correction system, which can solve the technical problems of easy lateral deviation in the construction of existing steel beams, and the existence of safety risks and quality hazards.

[0048] See Figure 1 and Figure 2As shown in the figure, an embodiment of the present invention provides a lateral deviation correction system for jacking a steel beam, including: a detection device and a jacking device.

[0049] The detection device is arranged on the steel beam 6 and the pier 7. The detection device is used to measure the lateral deviation and longitudinal coordinates of the center position at the front end of the steel beam, and the lateral deviation of the intersection point of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the pier 7, so as to determine the longitudinal coordinate of the zero point of the steel beam deviation.

[0050] Specifically, the detection device includes: a locator 1 and a deviation calculator 2. The locator is arranged at the center position at the front end of the steel beam. The locator is used to measure the lateral coordinate and longitudinal coordinate of the center position at the front end of the steel beam. The deviation calculator is electrically connected to the locator. The deviation calculator is used to subtract the lateral coordinate of the center position at the front end of the measured steel beam from the lateral coordinate of the designed longitudinal axis of the steel beam to obtain the lateral deviation of the center position at the front end of the measured steel beam. Optionally, the locator can be a GNSS locator or a GPS locator, or other similar locators. The deviation calculator and the locator can also be wirelessly connected.

[0051] The detection device further includes: two rangefinders 3. The two rangefinders are respectively arranged on both sides of the pier and are electrically connected to the deviation calculator. The two rangefinders are used to measure the distances from both ends of the lateral center line of the steel beam at the pier to the corresponding sides of the pier respectively. The deviation calculator is further used to subtract the distances measured by the two rangefinders to obtain the lateral deviation of the intersection point of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the pier 7. Optionally, the rangefinder is a laser rangefinder or an ultrasonic rangefinder. The deviation calculator and the locator can also be wirelessly connected.

[0052] Further, the deviation calculator determines the longitudinal coordinate of the zero point of the steel beam deviation according to the formula wherein, X is the longitudinal coordinate of the zero point of the steel beam deviation; X1 is the longitudinal coordinate of the center position at the front end of the steel beam; X2 is the longitudinal coordinate of the lateral center line of the steel beam at the pier, and this coordinate value is a fixed value and can be measured in advance; ΔY1 is the lateral deviation of the center position at the front end of the steel beam; ΔY2 is the lateral deviation of the intersection point of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the pier.

[0053] The jacking device is electrically connected to the detection device. The jacking device includes a plurality of jacking components 4. The plurality of jacking components are arranged under the two webs of the steel beam. The plurality of jacking components are used to horizontally and / or longitudinally jack the steel beam according to the longitudinal coordinate of the zero point of the steel beam deviation to correct the lateral deviation of the steel beam. Optionally, the jacking component is a walking jacking component.

[0054] Specifically, the pushing device further includes a pushing controller 5, which is electrically connected to the deviation calculator 2, and the pushing controller is configured to perform the following steps:

[0055] Step S101: Determine whether the longitudinal coordinate of the zero point of the steel beam deviation is between the first pushing components at the head and tail ends of the steel beam according to the longitudinal coordinate of the zero point of the steel beam deviation.

[0056] See Figure 3 and Figure 4 As shown, the solid line and the dashed line respectively represent the actual position and the designed position of the steel beam, and the intersection point of the longitudinal axes of the actual position and the designed position of the steel beam is the zero point of the steel beam deviation. Figure 3 In the steel beam, the zero point of the steel beam deviation is between the first pushing components at the head and tail ends of the steel beam. Figure 4 In, the intersection point of the extended longitudinal axes of the actual position and the designed position of the steel beam is the zero point of the steel beam deviation, and the zero point of the steel beam deviation is outside the first pushing components at the head and tail ends of the steel beam.

[0057] Step S102: If so, calculate the lateral horizontal forces of the lateral jacks of all pushing components and the target lateral deviation correction displacement of the lateral jack of the first pushing component at the head end of the steel beam, and control the lateral jacks of all pushing components to push the steel beam for deviation correction according to the lateral horizontal forces of the lateral jacks of all pushing components and the target lateral deviation correction displacement of the lateral jack of the first pushing component at the head end of the steel beam.

[0058] Specifically, see Figure 3 As shown, 11 to 1m are the numbers of the pushing components behind the zero point of the steel beam deviation, and 21 to 2n are the numbers of the pushing components in front of the zero point of the steel beam deviation. According to the lateral horizontal force balance and the rotational moment balance equation of the zero point of the steel beam deviation, the following formula can be obtained:

[0059]

[0060]

[0061] Among them, H 1m is the thrust generated during the deviation correction of the pushing component at the tail end of the steel beam; H 2n is the thrust generated during the deviation correction of the pushing component at the head end of the steel beam; F 1i is the pressure generated by the steel beam section at the pushing component behind the zero point of the steel beam deviation; F 2j is the pressure generated by the steel beam section at the pushing component in front of the zero point of the steel beam deviation; L 1m is the lever arm from the action point of H 1m to the zero point of the steel beam deviation; L 2n is the lever arm from the action point of H 2n to the zero point of the steel beam deviation; L 1i is F1i The lever arm from the acting point of the generated frictional force to the zero point of the steel beam deflection; L 2j is F 2j The lever arm from the acting point of the generated frictional force to the zero point of the steel beam deflection; μ is the friction coefficient.

[0062] The horizontal force of the transverse jack of the first pushing component at the head and tail ends of the steel beam is calculated as:

[0063] The first one at the head end:

[0064] The first one at the tail end:

[0065] In actual operation, the number of transverse jacks of the pushing components should be used as few as possible for the transverse deviation correction of the steel beam, and the horizontal force of the transverse jack of a single pushing component shall not exceed [H], where [H] is the maximum pushing force of the transverse jack of the pushing equipment.

[0066] If the calculated horizontal force of the transverse jack of the first pushing component at the head end exceeds [H], then use [H]+H in the equilibrium equation 2(n-1) to replace H 2n , [H]L 2n +H 2(n-1) L 2(n-1) to replace H 2n L 2n , and solve the equation. Similarly, if the calculated horizontal force of the transverse jack of the first pushing component at the tail end exceeds [H], then use [H]+H in the equilibrium equation 1(m-1) to replace H 1m , [H]L 1m +H 1(m-1) L 1(m-1) to replace H 1m L 1m , and solve the equation.

[0067] And so on until the horizontal force of the transverse jack of the pushing component calculated for the last time does not exceed [H].

[0068] The calculation formula for the target transverse deviation correction displacement of the transverse jack of the first pushing component at the head end of the steel beam is

[0069] After calculating the horizontal forces of all the transverse jacks of the pushing components, the pushing controller first starts the longitudinal jacks of all the pushing components to let the steel beam slide longitudinally at a low speed first to reduce the static friction during the start of the transverse deviation correction. Then, the transverse horizontal jacks of the corresponding pushing components are started in sequence, and the deviation correction is carried out based on the target transverse deviation correction displacement at the transverse jack of the first pushing component at the head end of the steel beam.

[0070] Step 103: If not, control the transverse jacks of all pushing components to laterally push the steel beam until the zero point of the lateral deviation of the steel beam is between the first pushing components at both the head and tail ends of the steel beam, and then execute Step 102.

[0071] In the steel beam pushing lateral deviation correction system in the embodiment of the present invention, a detection device and a pushing device are provided. The detection device can accurately detect the lateral deviation during the pushing process of the steel beam in real time, and the pushing device performs precise lateral deviation correction according to the detection result to ensure the safety and quality during the construction of the steel beam.

[0072] The embodiment of the present invention provides a method for correcting the lateral deviation of a steel beam during pushing, including the following steps:

[0073] Measure the lateral deviation and longitudinal coordinates of the center position at the front end of the steel beam, and the lateral deviation of the intersection point of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the pier to determine the longitudinal coordinate of the zero point of the lateral deviation of the steel beam.

[0074] Laterally and / or longitudinally push the steel beam according to the longitudinal coordinate of the zero point of the lateral deviation of the steel beam to correct the lateral deviation of the steel beam.

[0075] As an optional implementation manner, in an embodiment of the invention, the step of measuring the lateral deviation and longitudinal coordinates of the center position at the front end of the steel beam includes:

[0076] Measure the lateral coordinate and longitudinal coordinate of the center position at the front end of the steel beam.

[0077] Subtract the lateral coordinate of the center position at the front end of the measured steel beam from the lateral coordinate of the designed longitudinal axis of the steel beam to obtain the lateral deviation of the center position at the front end of the measured steel beam.

[0078] As an optional implementation manner, in an embodiment of the invention, the step of measuring the lateral deviation of the intersection point of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the pier includes:

[0079] Measure the distances from both ends of the lateral center line of the steel beam at the pier to the corresponding sides of the pier respectively.

[0080] Subtract the two measured distances to obtain the lateral deviation of the intersection point of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the pier.

[0081] As an optional implementation manner, in an embodiment of the invention, the step of determining the longitudinal coordinate of the zero point of the lateral deviation of the steel beam according to the lateral deviation and longitudinal coordinates of the center position at the front end of the steel beam and the lateral deviation of the intersection point of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the pier includes:

[0082] According to the formula Determine the longitudinal coordinate of the zero point of the steel beam deviation. Among them, X is the longitudinal coordinate of the zero point of the steel beam deviation; X1 is the longitudinal coordinate of the center position at the front end of the steel beam; X2 is the longitudinal coordinate of the transverse center line of the steel beam at the pier; ΔY1 is the transverse deviation at the center position at the front end of the steel beam; ΔY2 is the transverse deviation at the intersection of the designed longitudinal axis of the steel beam and the transverse center line of the steel beam at the pier.

[0083] As an optional implementation manner, in an embodiment of the invention, the step of correcting the transverse deviation of the steel beam by horizontally and / or longitudinally jacking the steel beam according to the longitudinal coordinate of the zero point of the steel beam deviation includes:

[0084] Step 101, determine whether the zero point of the steel beam deviation is located between the first jacking components at the head and tail ends of the steel beam according to the longitudinal coordinate of the zero point of the steel beam deviation.

[0085] Step 102, if so, calculate the horizontal lateral force of the lateral jacks of all jacking components and the target lateral deviation displacement of the lateral jack of the first jacking component at the head end of the steel beam, and control the lateral jacks of all jacking components to jack the steel beam for deviation correction according to the horizontal lateral force of the lateral jacks of all jacking components and the target lateral deviation displacement of the lateral jack of the first jacking component at the head end of the steel beam.

[0086] Step 103, if not, use the lateral jacks of all jacking components to horizontally move the steel beam until the zero point of the steel beam deviation is located between the first jacking components at the head and tail ends of the steel beam, and then execute Step 102.

[0087] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. Unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0088] It should be noted that in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0089] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features of the present invention.

Claims

1. A steel beam jacking lateral deviation correction system, characterized in that, Including: A detection device, which is arranged on the steel beam and the bridge pier. The detection device is used to measure the lateral deviation and longitudinal coordinates at the center position of the front end of the steel beam, the lateral deviation at the intersection of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the bridge pier, and the longitudinal coordinates of the lateral center line of the steel beam at the bridge pier, so as to determine the longitudinal coordinates of the zero point of the steel beam deviation. A jacking device, which is electrically connected to the detection device. The jacking device includes a plurality of jacking components. The plurality of jacking components are arranged under the two webs of the steel beam. The plurality of jacking components are used to horizontally and / or longitudinally jack the steel beam according to the longitudinal coordinates of the zero point of the steel beam deviation to correct the lateral deviation of the steel beam. The detection device includes: A locator, which is arranged at the center position of the front end of the steel beam. The locator is used to measure the lateral coordinates and longitudinal coordinates at the center position of the front end of the steel beam. The locator is a GNSS locator or a GPS locator. A deviation calculator, which is electrically connected to the locator. The deviation calculator is used to subtract the lateral coordinates of the designed longitudinal axis of the steel beam from the measured lateral coordinates at the center position of the front end of the steel beam to obtain the lateral deviation at the center position of the front end of the measured steel beam. Two rangefinders, which are respectively arranged on both sides of the bridge pier and are electrically connected to the deviation calculator. The two rangefinders are used to measure the distances from both ends of the lateral center line of the steel beam at the bridge pier to the corresponding sides of the bridge pier respectively. The deviation calculator is also used to subtract the distances measured by the two rangefinders to obtain the lateral deviation at the intersection of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the bridge pier.

2. The steel beam jacking lateral deviation correction system according to claim 1, characterized in that: The rangefinder is a laser rangefinder.

3. A steel beam jacking lateral deviation correction method, using the steel beam jacking lateral deviation correction system according to claim 1, characterized in that, Including the following steps: Measuring the lateral deviation and longitudinal coordinates at the center position of the front end of the steel beam, the lateral deviation at the intersection of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the bridge pier, and the longitudinal coordinates of the lateral center line of the steel beam at the bridge pier, so as to determine the longitudinal coordinates of the zero point of the steel beam deviation. Horizontally and / or longitudinally jacking the steel beam according to the longitudinal coordinates of the zero point of the steel beam deviation to correct the lateral deviation of the steel beam.

4. The steel beam jacking lateral deviation correction method according to claim 3, characterized in that, The step of measuring the lateral deviation and longitudinal coordinates at the center position of the front end of the steel beam includes: Measuring the lateral coordinates and longitudinal coordinates at the center position of the front end of the steel beam. Subtracting the lateral coordinates of the designed longitudinal axis of the steel beam from the measured lateral coordinates at the center position of the front end of the steel beam to obtain the lateral deviation at the center position of the front end of the measured steel beam.

5. The steel beam jacking lateral deviation correction method according to claim 4, characterized in that, The step of measuring the lateral deviation at the intersection of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the bridge pier includes: Measuring the distances from both ends of the lateral center line of the steel beam at the bridge pier to the corresponding sides of the bridge pier respectively. Subtracting the two measured distances to obtain the lateral deviation at the intersection of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the bridge pier.

6. The steel beam jacking lateral deviation correction method according to claim 5, characterized in that, The step of measuring the lateral deviation and longitudinal coordinates at the center position of the front end of the steel beam, the lateral deviation at the intersection of the designed longitudinal axis of the steel beam and the lateral center line of the steel beam at the bridge pier, so as to determine the longitudinal coordinates of the zero point of the steel beam deviation, includes: According to the formula Determine the longitudinal coordinate of the zero point of the deviation of the steel beam; Wherein, X is the longitudinal coordinate of the zero point of the steel beam deviation; X1 is the longitudinal coordinate of the center position at the front end of the steel beam; X2 is the longitudinal coordinate of the transverse center line of the steel beam at the pier; ΔY1 is the transverse deviation at the center position of the front end of the steel beam; and ΔY2 is the transverse deviation at the intersection of the designed longitudinal axis of the steel beam and the transverse center line of the steel beam at the pier.

7. The steel beam jacking lateral deviation correction method according to claim 6, characterized in that, The steps of jacking the steel beam horizontally and / or longitudinally according to the longitudinal coordinate of the zero point of the steel beam deviation to correct the transverse deviation of the steel beam include: Step 101: Determine whether the zero point of the steel beam deviation is located between the first jacking assemblies at the head and tail ends of the steel beam according to the longitudinal coordinate of the zero point of the steel beam deviation; Step 102: If so, calculate the horizontal forces of the transverse jacks of all jacking assemblies and the target transverse deviation displacement of the transverse jack of the first jacking assembly at the head end of the steel beam, and control the transverse jacks of all jacking assemblies to jack the steel beam for deviation correction according to the horizontal forces of the transverse jacks of all jacking assemblies and the target transverse deviation displacement of the transverse jack of the first jacking assembly at the head end of the steel beam; Step 103: If not, use the transverse jacks of all jacking assemblies to horizontally move the steel beam until the zero point of the steel beam deviation is located between the first jacking assemblies at the head and tail ends of the steel beam, and then execute Step 102.

Images