Embedded latticed column dynamic aligning and straightening device and construction method thereof

Abstract

The invention discloses a pre-embedded latticed column dynamic aligning and straightening device and a construction method thereof, the device comprises an adjusting mechanism, a locking piece and a supporting steel frame installed on the ground, the supporting steel frame surrounds the periphery of a latticed column, and a composite sensing system is further arranged at the top of the latticed column; wherein one end of the supporting steel frame is arranged in the movable platform in a sleeved mode, the supporting steel frame and the latticed columns are provided with mutually-corresponding preset hole positions for the locking pieces to penetrate through, the adjusting mechanism comprises a plurality of telescopic pieces extending in the vertical direction and the horizontal direction, one end of each telescopic piece extending in the horizontal direction makes contact with the supporting steel frame, and the other end of each telescopic piece makes contact with the latticed columns. The fixed end of the telescopic piece extending in the vertical direction is arranged on the movable platform, and the movable end of the telescopic piece is in contact with the supporting steel frame. According to the method, the straightening efficiency is improved, the couple unbalance and welding seam cracking risks of multi-equipment cooperative adjustment are reduced, a real-time feedback closed-loop control mechanism is formed, and the problem of manual reading error accumulation is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of lattice column construction, and particularly relates to a dynamic adjustment and straightening device for embedded lattice columns and a construction method thereof. Background Art

[0002] During the construction of the internal support for foundation pit bracing, the precise straightening of embedded lattice columns is a key link to ensure the stability of the bracing system. However, the inventor found that the traditional construction process has significant technical defects: First, the straightening process highly depends on manual operation and total station remeasurement. For a single lattice column, it needs to go through repeated measurement - adjustment - verification cycles, with an average time consumption of 30 - 60 minutes per column. And the manual reading error is prone to form cumulative deviation. The measured data shows that the error amplification factor during the repeated adjustment process can reach 1.5 - 2.0 times. Second, during the pile foundation concrete pouring stage, due to the lateral pressure of flowing concrete and vibration disturbance, the offset of the lattice column generally reaches 5 - 8 mm, exceeding the allowable perpendicularity limit of ≤1 / 1500 (i.e., 3 mm / 10 m) specified in the code. Later, remedial measures such as jacking or cutting and welding need to be adopted, and the rectification cost for a single column is as high as 8000 - 15000 yuan. Third, for large lattice columns with a cross-sectional size ≥800×600 mm, the traditional process needs to configure 2 - 3 hydraulic straightening devices to work together. The lack of equipment synchronization leads to an imbalance in the adjustment couple. Engineering cases show that its adjustment efficiency is only 40% of that of small columns, and there is a risk of structural weld cracking. Summary of the Invention

[0003] The purpose of the present invention is to provide a dynamic adjustment and straightening device for embedded lattice columns and a construction method thereof to overcome the defects of the prior art, greatly improve the straightening efficiency, reduce the risk of couple imbalance and weld cracking in the coordinated adjustment of multiple devices, form a closed-loop control mechanism with real-time feedback, and avoid the problem of cumulative error in manual reading.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A dynamic adjustment and straightening device for embedded lattice columns includes an adjustment mechanism, a locking member, and a support steel frame installed on the ground. The support steel frame surrounds the lattice column, and a composite sensing system is further provided at the top of the lattice column;

[0006] Wherein, one end of the support steel frame close to the ground is sleeved in a movable platform. Corresponding preset holes are provided on the support steel frame and the lattice column for the locking member to pass through. The adjustment mechanism includes a plurality of telescopic members extending in the vertical direction and in the horizontal direction. One end of the telescopic member extending in the horizontal direction contacts the support steel frame, and the other end contacts the side wall of the lattice column. The fixed end of the telescopic member extending in the vertical direction is arranged on the movable platform, and its movable end contacts the support steel frame.

[0007] In one embodiment, the composite sensing system includes an angle sensor and a laser sensor. The laser sensor is used to periodically collect the three-dimensional coordinate data of the four corners of the lattice column, and the angle sensor is used to detect the axis attitude of the lattice column.

[0008] In one embodiment, a plurality of the telescopic members extending in the horizontal direction are uniformly distributed around the lattice column.

[0009] In one embodiment, the telescopic member is a hydraulic jack. All the telescopic members are connected to a hydraulic drive system. The fixed end of the telescopic member extending in the horizontal direction is connected to the support steel frame, and its movable end is in contact with the side wall of the lattice column.

[0010] In one embodiment, the preset hole position is a waist-shaped hole structure, the locking member is a locking bolt that can be inserted into the waist-shaped hole structure, and locking nuts in contact with the support steel frame are arranged at both ends of the locking screw.

[0011] The present invention also provides a construction method for an embedded lattice column, including the following steps:

[0012] Step S1, hoisting and positioning;

[0013] Step S2, installing the adjusting mechanism;

[0014] Step S3, during the process of pouring concrete, dynamically adjust the attitude of the lattice column by using the adjusting mechanism;

[0015] Step S4, after the concrete is poured, detect the deviation of the lattice column again. If the requirements are met, lock the lattice column through the locking member. If the requirements are not met, use the adjusting mechanism to adjust the lattice column to meet the requirements and then lock it.

[0016] In one embodiment, step S1 includes:

[0017] Step S101, after hoisting the lattice column to the embedded hole position by a lifting device, set the support frame around the lattice column;

[0018] Step S102, use the laser sensor to scan the positioning reference line of the lattice column, establish the mapping relationship between the BIM model coordinate system and the physical space, use the inclination sensor to detect the initial inclination angle of the lattice column, and generate a three-dimensional deviation vector.

[0019] In one embodiment, step S2 includes:

[0020] Step S201, set up a movable platform on the ground, and movably install the support steel frame wound around the lattice column on the movable platform;

[0021] Step S202: Install a telescopic member extending in the vertical direction on the movable platform, and set a telescopic member extending in the horizontal direction between the support steel frame and the lattice column to achieve synchronous adjustment of the X / Y plane position, Z-axis elevation compensation, and correction of the rotation angle around the Z-axis.

[0022] In one embodiment, step S3 includes:

[0023] Step S301: Use a laser sensor to collect the three-dimensional coordinate data of the four corners of the column in real time at a period of 30 seconds, and compare it with the design coordinates to obtain the plane deviation and elevation deviation of the lattice column;

[0024] Step S302: Use an inclination sensor to detect the attitude of the column axis of the lattice column in real time and generate a three-dimensional space offset vector to obtain the execution compensation amount of each telescopic member;

[0025] Step S303: Control the telescopic member extending in the vertical direction to perform elevation compensation and correction of the rotation angle around the Z-axis, and control the telescopic member extending in the horizontal direction to perform plane deviation compensation.

[0026] The beneficial effects of the present invention are as follows:

[0027] (1) It does not require manual operation and remeasurement with a total station, greatly improving the straightening efficiency of a single lattice column. At the same time, the real-time adjustment method effectively avoids cumulative deviation and ensures the adjustment accuracy;

[0028] (2) During the pile foundation concrete pouring stage, it avoids the offset of the lattice column caused by the lateral pressure and vibration disturbance of the concrete, and there is no need to correct and remedy after pouring, improving the construction efficiency while reducing the construction cost;

[0029] (3) When facing large lattice columns with a cross-sectional size ≥ 800×600 mm, there is no need to configure multiple hydraulic systems, avoiding the imbalance of the adjustment couple caused by insufficient equipment synchronization, and forming a real-time feedback closed-loop control mechanism to achieve an efficient and accurate straightening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In the following, the present invention will be described in more detail based on embodiments and with reference to the drawings. Among them:

[0031] Figure 1 Shows a schematic structural diagram of the dynamic adjustment and straightening device of the present invention;

[0032] Figure 2 Shows a schematic structural diagram of the support frame of the present invention;

[0033] Figure 3 Shows a schematic construction process diagram of the present invention;

[0034] In the drawings, like parts are designated by like reference numerals. The drawings are not to scale.

[0035] Reference numerals:

[0036] 1 - lattice column, 2 - support steel frame, 3 - preset hole positions, 4 - locking member, 5 - telescopic member, 6 - angle sensor, 7 - laser sensor. Detailed implementation manners

[0037] The present invention will be further described below in conjunction with the drawings.

[0038] The present invention provides a dynamic adjustment and straightening device for an embedded lattice column 1, as Figure 1 and Figure 2 shown, which includes an adjustment mechanism, a locking member 4, and a support steel frame 2 installed on the ground. The support steel frame 2 surrounds the lattice column 1, and a composite sensing system is further provided at the top of the lattice column 1;

[0039] Among them, one end of the support steel frame 2 close to the ground is sleeved in the movable platform. Corresponding preset hole positions 3 are provided on the support steel frame 2 and the lattice column 1 for the locking member 4 to penetrate. The adjustment mechanism includes a plurality of telescopic members 5 extending in the vertical direction and in the horizontal direction. One end of the telescopic member 5 extending in the horizontal direction contacts the support steel frame 2, and the other end contacts the side wall of the lattice column 1. The fixed end of the telescopic member 5 extending in the vertical direction is arranged on the movable platform, and its movable end contacts the support steel frame 2;

[0040] It should be noted that in this embodiment, the composite sensing system at the top of the lattice column 1 is used to detect the offset of the lattice column 1 in real time. The support steel frame 2 surrounding the lattice column 1 and a plurality of telescopic members 5 (the telescopic members 5 extending in the vertical direction and the telescopic members 5 extending in the horizontal direction) installed on the support steel frame 2 are used to perform displacement compensation on the lattice column 1. Through a simple structure, the planar position adjustment (X-axis and Y-axis positions), Z-axis elevation compensation, and Z-axis rotation angle correction of the lattice column 1 can be satisfied. The lattice column 1 is corrected in real time during the concrete pouring process. At the same time, when the lattice column 1 meets the requirements (the measured deviation values are all less than the allowable tolerance), the telescopic member 5 extending in the vertical direction cooperates with the locking member 4 to double-lock the lattice column 1, greatly improving the straightening efficiency of the lattice column 1, ensuring its synchronism at the same time, and ensuring the straightening accuracy;

[0041] Specifically, as Figure 1 shown, the composite sensing system includes an angle sensor 6 and a laser sensor 7. The laser sensor 7 is used to periodically collect the three-dimensional coordinate data of the four corners of the lattice column 1, and the angle sensor 6 is used to detect the axis attitude of the lattice column 1;

[0042] It should be noted that in this embodiment, the composite sensing system includes three groups of laser sensors 7. The three groups of laser sensors 7 collect the three-dimensional coordinate data of the four corners of the lattice column 1 every 30 seconds, and then compare it with the designed coordinates to obtain the plane deviation on the X-axis and Y-axis and the elevation deviation on the Z-axis. The angle sensor 6 is a biaxial inclination sensor that detects the axis attitude of the lattice column 1 and generates a three-dimensional space offset vector (α_x, α_y, α_z). Then, based on the spatial geometric algorithm, the compensation amount required for each telescopic member 5 can be obtained;

[0043] In one embodiment, as Figure 1 and Figure 2 shown, a plurality of telescopic members 5 extending in the horizontal direction are evenly distributed around the lattice column 1, that is, four telescopic members 5 extending in the horizontal direction are evenly distributed around the lattice column 1, and the two opposite telescopic members 5 are on the same axis to ensure the synchronization of adjustment;

[0044] In one embodiment, the telescopic member 5 is a hydraulic jack, and all the telescopic members 5 are connected to the hydraulic drive system. The fixed end of the telescopic member 5 extending in the horizontal direction is connected to the support steel frame 2, and its movable end is in contact with the side wall of the lattice column 1.

[0045] In one embodiment, the preset hole 3 is a waist-shaped hole structure, and the locking member 4 is a locking bolt that can be inserted into the waist-shaped hole structure. Locking nuts in contact with the support steel frame 2 are provided at both ends of the locking screw;

[0046] In one embodiment, the present invention also provides a construction method for the embedded lattice column, as Figure 3 shown, including the following steps:

[0047] Step S1, hoisting and positioning;

[0048] Step S101, after hoisting the lattice column to the embedded hole position by a lifting device, set the support frame around the lattice column;

[0049] Step S102, use the laser sensor to scan the positioning reference line of the lattice column, establish the mapping relationship between the BIM model coordinate system and the physical space, use the inclination sensor to detect the initial inclination angle of the lattice column, and generate a three-dimensional deviation vector;

[0050] Step S2, install the adjustment mechanism;

[0051] Step S201, set up a movable platform on the ground, and movably install the support steel frame wound around the lattice column on the movable platform;

[0052] Step S202: Install a telescopic member extending in the vertical direction on the movable platform, and set a telescopic member extending in the horizontal direction between the support steel frame and the lattice column to achieve synchronous adjustment of the X / Y plane position, Z-axis elevation compensation, and correction of the rotation angle around the Z-axis;

[0053] Step S3: During the process of pouring concrete, use the adjustment mechanism to dynamically adjust the posture of the lattice column;

[0054] Step S301: Use a laser sensor to collect the three-dimensional coordinate data of the four corners of the column in real time every 30 seconds, and compare it with the design coordinates to obtain the plane deviation and elevation deviation of the lattice column;

[0055] Step S302: Use an inclination sensor to detect the axis posture of the lattice column in real time and generate a three-dimensional space offset vector to obtain the execution compensation amount of each telescopic member;

[0056] Step S303: Control the telescopic member extending in the vertical direction to perform elevation compensation and correction of the rotation angle around the Z-axis, and control the telescopic member extending in the horizontal direction to perform plane deviation compensation;

[0057] Step S4: After the concrete is poured, detect the deviation of the lattice column again. If the requirements are met, lock the lattice column with a locking member. If the requirements are not met, use the adjustment mechanism to adjust the lattice column to meet the requirements and then lock it;

[0058] It should be noted that during the construction of the lattice column, first lift it to the embedded hole position by a lifting device, then preliminarily fix it to the support frame by a temporary fixture, use the composite sensing system to detect the deformation of the lattice column throughout its life cycle, then use the adjustment mechanism to correct its inclination by ±5° and fine-tune its plane displacement by ±30 mm. Finally, after the adjustment is completed, lock the lattice column with a locking member and the telescopic member extending in the vertical direction to prevent secondary deviation caused by concrete vibration;

[0059] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc. 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 should not be construed as a limitation of the present invention.

[0060] While the present invention has been described herein with reference to particular embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Accordingly, it should be understood that numerous modifications may be made to the exemplary embodiments, and other arrangements may be devised, without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the different dependent claims and the features described herein may be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with separate embodiments may be used in other described embodiments.

Claims

1. A pre-buried lattice column dynamic straightening device, characterized in that: It includes an adjustment mechanism, a locking piece, and a supporting steel frame installed on the ground, wherein the supporting steel frame surrounds the lattice column, and a composite sensor system is also arranged on the top of the lattice column; Among them, one end of the supporting steel frame close to the ground is sleeved in the movable platform, and the supporting steel frame and the lattice column are provided with corresponding preset holes for the locking member to pass through, and the adjustment mechanism includes a plurality of telescopic members extending in the vertical direction and the horizontal direction, one end of the telescopic member extending in the horizontal direction is in contact with the supporting steel frame, and the other end is in contact with the side wall of the lattice column, and the fixed end of the telescopic member extending in the vertical direction is arranged on the movable platform, and its movable end is in contact with the supporting steel frame.

2. The embedded lattice column dynamic straightening device according to claim 1, characterized in that: The composite sensing system comprises an angle sensor and a laser sensor, wherein the laser sensor is used for periodically collecting three-dimensional coordinate data of the four corners of the lattice column, and the angle sensor is used for detecting the axis posture of the lattice column.

3. The embedded lattice column dynamic straightening device according to claim 1, characterized in that: A plurality of telescopic members extending in the horizontal direction are evenly distributed around the lattice column.

4. The embedded lattice column dynamic straightening device according to claim 1, characterized in that: The telescopic parts are hydraulic jacks, and all the telescopic parts are connected to the hydraulic drive system. The fixed ends of the telescopic parts extending in the horizontal direction are connected to the supporting steel frame, and the movable ends thereof are in contact with the side walls of the lattice columns.

5. The embedded lattice column dynamic straightening device according to claim 1, characterized in that: The preset hole position is a waist hole structure, the locking piece is a locking bolt that can be inserted into the waist hole structure, and both ends of the locking bolt are provided with locking nuts that are in contact with the supporting steel frame.

6. A construction method for a pre-buried lattice column, based on the pre-buried lattice column dynamic straightening device according to any one of claims 1 to 5, characterized in that: The steps include: Step S1, hoisting and positioning; Step S2, installing the adjustment mechanism; Step S3: During the pouring of concrete, the posture of the lattice column is dynamically adjusted by using the adjustment mechanism; Step S4: After the concrete pouring is completed, the deviation of the lattice column is detected again. If the requirement is met, the lattice column is locked by the locking member. If the requirement is not met, the lattice column is adjusted by the adjustment mechanism until the requirement is met and then locked.

7. The construction method of a pre-buried lattice column according to claim 6, characterized in that: Step S1 includes: Step S101, after the lattice column is hoisted to the pre-buried hole position by a lifting device, a supporting frame is arranged on the periphery of the lattice column; Step S102: Use a laser sensor to scan the lattice column positioning reference line, establish a mapping relationship between the BIM model coordinate system and the physical space, use an inclination sensor to detect the initial inclination angle of the lattice column, and generate a three-dimensional deviation vector.

8. The construction method of a pre-buried lattice column according to claim 6, characterized in that: Step S2 includes: Step S201, setting a movable platform on the ground, and movably installing a supporting steel frame arranged around the lattice column on the movable platform; Step S202: Install a telescopic member extending in the vertical direction on the movable platform, and set a telescopic member extending in the horizontal direction between the supporting steel frame and the lattice column to achieve X / Y plane position synchronous adjustment, Z axis elevation compensation and rotation angle correction around the Z axis.

9. The construction method of a pre-buried lattice column according to claim 6, characterized in that: Step S3 includes: Step S301: using a laser sensor to collect three-dimensional coordinate data of the four corners of the column in real time at a period of 30 seconds, and comparing it with the design coordinates to obtain the plane deviation and elevation deviation of the lattice column; Step S302: using an inclination sensor to detect the posture of the column axis of the lattice column in real time, and generating a three-dimensional space offset vector to obtain the execution compensation amount of each telescopic member; Step S303: Control the telescopic member extending in the vertical direction to perform elevation compensation and rotation angle correction around the Z axis, and control the telescopic member extending in the horizontal direction to perform plane deviation compensation.

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