A segmental assembly process for ground-connected wall steel structure

Abstract

The present invention relates to a general assembly process for ground-connected wall steel structure segments, wherein the ground-connected wall steel structure segments include an isolation box, a trough section steel box, a tension spring and a pull rod; the feature of the general assembly process is as follows: after the steel structure box chamber block and the isolation box block are manufactured, and the remaining parts and steel bars are also manufactured, the steel structure box segments are first assembled in groups of two on a general assembly frame to form the length of the hoisting and transportation segment, and then the tension spring ear plates, pull rods, support rods, restraint frames, steel bars, angle steel slots and anti-bypass iron sheets are assembled in sequence to form a complete transportation segment.

Description

Technical Field

[0001] The present invention relates to the technical field of steel box bridge construction, and in particular to a process for assembling ground-connected wall steel structure segments. Background Art

[0002] The trough section steel structure consists of four parts: a steel structure box, an isolation box body, a tension spring and a pull-out rod. The tension spring and the pull-out rod are structures that connect the steel structure box body and the isolation box body and are easy to install and disassemble. The trough section steel structure is difficult to assemble and has low efficiency due to the assembly sequence during the assembly process. Therefore, a new assembly process is needed to improve the assembly efficiency of the trough section steel structure. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a ground-connected wall steel structure segment assembly process, which can solve the problems of low assembly efficiency and poor installation precision of general ground-connected wall steel structure segments.

[0004] To solve the above technical problems, the technical solution of the present invention is: a process for assembling ground-connected wall steel structure segments, wherein the ground-connected wall steel structure segments include an isolation box, a trough steel box, a tension spring, and a pull rod; the innovation lies in: the specific assembly process is as follows:

[0005] S1: Tire Frame Preparation: Set longitudinal and transverse baselines and reference points on the tire frame. Set independent baselines and reference points outside the tire frame to form a measurement network. The tire frame must have a crossbeam support corresponding to each crossbeam, and the maximum deviation from the crossbeam position shall not exceed 50mm. The tire frame line shape must be inspected and accepted before use.

[0006] S2: Positioning and welding of isolation chamber blocks: Using the vertical and horizontal baselines as the reference, position the isolation chamber blocks. After positioning, connect the isolation chamber blocks two by two to form a transport and installation segment. Focus on controlling the total length of the segment, the cross-sectional dimensions of the ring opening, and the misalignment of the joints.

[0007] S3: Assembling and welding the tension spring lugs: Use the segment longitudinal and transverse baselines and the pins to locate and install the tension spring lug structure, focusing on controlling the concentricity and longitudinal and transverse positions of the tension spring lug hole cluster. Measure and lay out the lines on the segment web to mark the horizontal centerline of the longitudinal tension spring lug hole, and mark the hole centerline on the tension spring lug. After the tension spring lug is initially positioned according to the longitudinal and transverse baselines, pull a thin steel wire along the horizontal centerline of the web. Adjust and accurately position the tension spring lug based on the deviation between the thin steel wire and the hole line on the tension spring lug to ensure the concentricity of the tension spring lug hole cluster.

[0008] S4: Assemble the pull rod and tension spring: Assemble the pull rod structure as a whole, assemble the pull rod, connecting plate, and pin into a whole according to the segment length, and weld the pull rod, connecting plate, and pin as required; insert the pull rod as a whole into the tension spring ear plate; pay special attention to whether the pin is inserted smoothly;

[0009] S5: Assemble and weld the braces and restraint frames: Assemble the braces and restraint frames according to the longitudinal and transverse baselines and the positioning lines on the webs, focusing on controlling the verticality between the braces and the webs, the distance between the braces and the centerline, and the opening size of the free ends of the two braces. The outer opening size of the braces is determined by aligning the plumb bob with the ground sample. To ensure that there is no gap between the braces and the isolation box and that the isolation box is stressed, a positive deviation of 1mm is allowed during brace installation, and no negative deviation is allowed.

[0010] S6: Install the steel bars and acoustic detection pipes inside the box: insert the fourteen longitudinal steel bars into the box in the order of bottom to top; install the three acoustic detection pipes inside the box, and temporarily fix the acoustic detection pipes to the box;

[0011] S7: Install the bypass iron sheet, steel bars, and angle steel slots on the bottom surface: Install the bypass iron sheet and cover cloth pressure plate, drill bolt holes, and insert bolts to secure; install the transverse steel bars and weld them to the steel plate, then insert the longitudinal steel bars and weld them to the transverse steel bars; install the outer angle steel slots and weld them to the steel bars; install the longitudinal steel bars on the outside of the box and spot weld them to the shear studs;

[0012] S8: Install the second and third layers of steel bars: insert the transverse steel bars and reinforce them with the web, insert the longitudinal steel bars and spot weld them with the transverse steel bars;

[0013] S9: Install the top steel bars, place the bypass iron sheets, and angle steel slots: Install the transverse steel bars and weld them to the top plate, install the longitudinal steel bars and spot weld them to the transverse steel bars; install the bypass iron sheets and cover cloth pressure plates, drill bolt holes, and insert bolts to secure them; install the outermost angle steel slots and weld them to the transverse steel bars; install the stress gauges, thermometers, inclinometer tubes, and data transmission lines in the auxiliary components;

[0014] S10: Install matching parts and dismantle the tire; after passing the inspection, install matching parts and dismantle the tire; finally, paint, store and ship.

[0015] The advantages of the present invention are:

[0016] 1) In the present invention, the installation of the ground-connected wall rigid connection structure is carried out from the inside to the outside and from the bottom to the top, and the installation sequence is scientific and reasonable. After the steel structure box room block and the isolation box block are completed, and the remaining loose parts and steel bars are also completed, the steel structure box segments are first connected in groups of two on the general assembly frame to form the length of the lifting and transportation segment, and then the tension spring ear plates, pull rods, support rods, restraint frames, steel bars, angle steel slots and anti-circumvention iron sheets are assembled in sequence to form a complete transportation segment. The general assembly process has high efficiency and high assembly precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a process flow chart for assembling segments of a ground-connected wall steel structure according to the present invention.

[0019] Figures 2 to 7 This is a diagram of the overall assembly status of the ground-connected wall steel structure segments of the present invention. Implementation Method

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0022] like Figure 1 The following is a general assembly process for a ground-connected wall steel structure segment. The ground-connected wall steel structure segment includes an isolation box, a trough section steel box, a tension spring, and a pull rod. The specific general assembly process is as follows:

[0023] S1: Tire Frame Preparation: Set longitudinal and transverse baselines and reference points on the tire frame. Set independent baselines and reference points outside the tire frame to form a measurement network. The tire frame must have a crossbeam support corresponding to each crossbeam, and the maximum deviation from the crossbeam position shall not exceed 50mm. The tire frame line shape must be inspected and accepted before use.

[0024] like Figure 2 As shown: S2: Positioning and welding of isolation chamber blocks: Based on the vertical and horizontal baselines, the isolation chamber blocks are positioned. After positioning, the isolation chamber blocks are connected two by one to form a transport and installation segment; focus on controlling the total length of the segment, the cross-sectional dimensions of the ring mouth, and the misalignment of the joints;

[0025] S3: Assembling and welding the tension spring lugs: Use the segment longitudinal and transverse baselines and the pins to locate and install the tension spring lug structure, focusing on controlling the concentricity and longitudinal and transverse positions of the tension spring lug hole cluster. Measure and lay out the lines on the segment web to mark the horizontal centerline of the longitudinal tension spring lug hole, and mark the hole centerline on the tension spring lug. After the tension spring lug is initially positioned according to the longitudinal and transverse baselines, pull a thin steel wire along the horizontal centerline of the web. Adjust and accurately position the tension spring lug based on the deviation between the thin steel wire and the hole line on the tension spring lug to ensure the concentricity of the tension spring lug hole cluster.

[0026] like Figure 3As shown: S4: Assemble the pull rod and tension spring: Assemble the pull rod structure as a whole, assemble the pull rod, connecting plate, and pin into a whole according to the segment length, and weld the pull rod, connecting plate, and pin as required; insert the pull rod as a whole into the tension spring ear plate; pay special attention to whether the pin is inserted smoothly;

[0027] S5: Assemble and weld the braces and restraint frames: Assemble the braces and restraint frames according to the longitudinal and transverse baselines and the positioning lines on the webs, focusing on controlling the verticality between the braces and the webs, the distance between the braces and the centerline, and the opening size of the free ends of the two braces. The outer opening size of the braces is determined by aligning the plumb bob with the ground sample. To ensure that there is no gap between the braces and the isolation box and that the isolation box is stressed, a positive deviation of 1mm is allowed during brace installation, and no negative deviation is allowed.

[0028] like Figure 4 As shown: S6: Install the steel bars and acoustic detection pipes inside the box: insert the fourteen longitudinal steel bars into the box in the order of bottom to top; install the three acoustic detection pipes inside the box, and temporarily fix the acoustic detection pipes to the box;

[0029] like Figure 5 As shown: S7: Install the bypass iron sheet, steel bars and angle steel slots on the bottom surface: Install the bypass iron sheet and cover cloth pressure plate, drill bolt holes, insert bolts to fix; install the horizontal 10a steel bar and weld it to the steel plate, then insert the longitudinal 11a and 11b steel bars and weld them to the horizontal 11a steel bar; install the outer angle steel slots and weld them to the steel bars; install the longitudinal T12 steel bars on the outside of the box body and spot weld them to the shear studs;

[0030] like Figure 6 As shown: S8: Install the second and third layers of steel bars: insert the transverse steel bars and reinforce them with the web, insert the longitudinal steel bars and spot weld them with the transverse steel bars;

[0031] like Figure 7 As shown: S9: Install the top steel bars, place the bypass iron sheet and angle steel slots: Install the transverse steel bars and weld them to the top plate, install the longitudinal steel bars and spot weld them to the transverse steel bars; install the anti-bypass iron sheet and cover cloth pressure plate, drill bolt holes, insert bolts and secure them; install the outermost angle steel slots and weld them to the transverse steel bars; install the stress gauges, thermometers, inclinometer tubes and data transmission lines in the auxiliary components;

[0032] S10: Install matching parts and dismantle the tire; after passing the inspection, install matching parts and dismantle the tire; finally, paint, store and ship.

[0033] Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A process for assembling ground-connected wall steel structure segments, wherein the ground-connected wall steel structure segments include an isolation box, a trough section steel box, a tension spring, and a pull rod; characterized in that: The specific overall assembly process is as follows: S1: Tire Frame Preparation: Set longitudinal and transverse baselines and reference points on the tire frame. Set independent baselines and reference points outside the tire frame to form a measurement network. The tire frame must have a crossbeam support corresponding to each crossbeam, and the maximum deviation from the crossbeam position shall not exceed 50mm. The tire frame line shape must be inspected and accepted before use. S2: Positioning and welding of isolation chamber blocks: Using the vertical and horizontal baselines as the reference, position the isolation chamber blocks. After positioning, connect the isolation chamber blocks two by two to form a transport and installation segment. Focus on controlling the total length of the segment, the cross-sectional dimensions of the ring opening, and the misalignment of the joints. S3: Assembling and welding the tension spring lugs: Use the segment longitudinal and transverse baselines and the pins to locate and install the tension spring lug structure, focusing on controlling the concentricity and longitudinal and transverse positions of the tension spring lug hole cluster. Measure and lay out the lines on the segment web to mark the horizontal centerline of the longitudinal tension spring lug hole, and mark the hole centerline on the tension spring lug. After the tension spring lug is initially positioned according to the longitudinal and transverse baselines, pull a thin steel wire along the horizontal centerline of the web. Adjust and accurately position the tension spring lug based on the deviation between the thin steel wire and the hole line on the tension spring lug to ensure the concentricity of the tension spring lug hole cluster. S4: Assemble the pull rod and tension spring: Assemble the pull rod structure as a whole, assemble the pull rod, connecting plate, and pin into a whole according to the segment length, and weld the pull rod, connecting plate, and pin as required; insert the pull rod as a whole into the tension spring ear plate; pay special attention to whether the pin is inserted smoothly; S5: Assemble and weld the braces and restraint frames: Assemble the braces and restraint frames according to the longitudinal and transverse baselines and the positioning lines on the webs, focusing on controlling the verticality between the braces and the webs, the distance between the braces and the centerline, and the opening size of the free ends of the two braces. The outer opening size of the braces is determined by aligning the plumb bob with the ground sample. To ensure that there is no gap between the braces and the isolation box and that the isolation box is stressed, a positive deviation of 1mm is allowed during brace installation, and no negative deviation is allowed. S6: Install the steel bars and acoustic detection pipes inside the box: insert the fourteen longitudinal steel bars into the box in the order of bottom to top; install the three acoustic detection pipes inside the box, and temporarily fix the acoustic detection pipes to the box; S7: Install the anti-circumference iron sheet, steel bars, and angle steel slots on the bottom surface: Install the anti-circumference iron sheet and cover cloth pressure plate, drill bolt holes, and insert bolts to secure; install the transverse steel bars and weld them to the steel plate, then insert the longitudinal steel bars and weld them to the transverse steel bars; install the outer angle steel slots and weld them to the steel bars; install the longitudinal steel bars on the outside of the box and spot weld them to the shear studs; S8: Install the second and third layers of steel bars: insert the transverse steel bars and reinforce them with the web, insert the longitudinal steel bars and spot weld them with the transverse steel bars; S9: Install the top reinforcement, bypass iron sheet, and angle steel slots: Install the transverse reinforcement and weld them to the top plate, install the longitudinal reinforcement and spot weld them to the transverse reinforcement; install the bypass iron sheet and cover cloth pressure plate, drill bolt holes, and insert bolts to secure; install the outermost angle steel slots and weld them to the transverse reinforcement; install the stress gauges, thermometers, inclinometer tubes, and data transmission lines in the auxiliary components; S10: Install matching parts and dismantle the tire; after passing the inspection, install matching parts and dismantle the tire; finally, paint, store and ship.

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