A CAP1400 nuclear island heavy shear wall steel reinforcement cage module construction support device and method

Abstract

The application discloses a CAP1400 nuclear island heavy shear wall steel reinforcement cage module construction support device and method, which comprises lateral stability supports arranged on both sides of the steel reinforcement cage module; the lateral stability supports comprise steel reinforcement clamps, plane trusses and horizontal connecting rods; two plane trusses are arranged, and a horizontal connecting rod is arranged between the two plane trusses; the top of each plane truss is provided with a steel reinforcement clamp; each plane truss comprises a first vertical rod, a second vertical rod, an inclined vertical rod, a horizontal web rod, an inclined web rod and a fixed bolt mounting hole; the first vertical rod is arranged on the side close to the steel reinforcement cage module; and the second vertical rod is arranged on the side far away from the steel reinforcement cage module; the upper portion of the second vertical rod is provided with the inclined vertical rod; and the horizontal web rod and the inclined web rod are arranged between the first vertical rod, the second vertical rod and the inclined vertical rod. The lateral stability of the steel reinforcement cage module can be improved, the construction risk can be reduced, the crane occupation time can be shortened, and the overall efficiency and economy of the steel reinforcement cage modular construction can be improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of the third generation nuclear power plant assembly type and modular construction, and particularly relates to a CAP1400 nuclear island heavy shear wall steel bar cage module construction support device and method. BACKGROUND

[0002] The statements in this section merely provide background information related to the present application and do not necessarily constitute the prior art.

[0003] CAP1400 is the latest generation of non-power large advanced pressurized water reactor nuclear power unit developed by China. In order to meet the structural safety requirements under the conditions of earthquake and extreme accident, the CAP1400 nuclear island plant adopts heavy reinforced concrete shear wall structure to bear the huge design load. Compared with the conventional shear wall (wall thickness 200-300mm, one layer of steel mesh is arranged on each side), the structural design parameters of the heavy shear wall are greatly increased, the wall thickness can reach 1000-1200mm, and more than two layers of steel mesh are arranged on each side, and the amount of work of the shear wall steel bar cage is greatly increased.

[0004] In order to improve the construction efficiency and quality of the heavy shear wall steel bar binding, reduce the labor intensity and construction risk of the site construction personnel, the traditional manual positioning and binding method is being gradually replaced by the steel bar cage modular construction method. In the modular construction, the steel bar cage module is first manufactured in the factory, transported to the construction site, and then hoisted to the installation position by using a crane. The main reinforcement of the steel bar cage is connected to the main reinforcement of the surrounding wall body through a steel sleeve. The inventors found that the current construction method has the following problems: Because the steel bar cage module lacks self-stability before the main reinforcement is connected, in order to prevent the steel bar cage module from losing stability, the crane needs to be used to hoist the steel bar cage module for a long time, and only after the main reinforcement is completely connected, the crane can be removed. For the heavy steel bar cage module, because the number of main reinforcements is large and the number of connection joints is large, the installation time of the steel sleeve is long, which leads to long occupation time of the crane, greatly reduces the use efficiency of the crane on site, causes other processes that need to be assisted by the crane to be unable to normally develop at the same period, and greatly affects the degree of improvement of the overall construction efficiency of the steel bar cage modular construction method. In addition, because the crane is occupied for a long time, the crane shift fee is greatly increased, and the overall economy of the steel bar cage modular construction is deteriorated.

[0005] At present, there is no patent research and application on the support device and method in the process of modular construction of shear wall steel reinforcement cage. Patent publication number CN 113732216 A proposes a special-shaped steel reinforcement cage support device and construction method, which includes a support ring, a driving mechanism, a walking mechanism, a lifting mechanism and a walking guide rail, and is mainly used to solve the welding problem of special-shaped hoop in the cast-in-place pile circular steel reinforcement cage. Patent publication number CN 112359836 A proposes a large-diameter pile foundation steel reinforcement cage support device and construction method, which includes a support frame in a closed state, and a plurality of support pieces are arranged along the circumference of the support frame, and mainly provides vertical support for the connection of the large-diameter cast-in-place pile circular steel reinforcement cage. The above two patents are used for the production and installation of cast-in-place pile circular steel reinforcement cage, and cannot solve the problems of lack of self-stability of nuclear island heavy shear wall sheet-shaped steel reinforcement cage module in the installation process and long crane occupation time. SUMMARY

[0006] In view of the above problems, the present application provides a CAP1400 nuclear island heavy shear wall steel reinforcement cage module construction support device and method, which can increase the lateral stability of the steel reinforcement cage module, reduce the construction risk, shorten the crane occupation time, and improve the overall efficiency and economy of the steel reinforcement cage modular construction.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0008] A CAP1400 nuclear island heavy shear wall steel reinforcement cage module construction support device, comprising a lateral stability support frame, which is arranged on both sides of the steel reinforcement cage module; the lateral stability support frame comprises a steel reinforcement clamp, a planar truss and a horizontal connecting rod, two planar trusses are arranged, a horizontal connecting rod is arranged between the two planar trusses, and a steel reinforcement clamp is arranged at the top of the planar truss;

[0009] The planar truss comprises a first vertical rod, a second vertical rod, an inclined vertical rod, a horizontal web rod, an inclined web rod and a fixed bolt mounting hole; the first vertical rod is located on one side close to the steel reinforcement cage module, and the second vertical rod is located on the side away from the steel reinforcement cage module; the upper part of the second vertical rod is provided with an inclined vertical rod, and the horizontal web rod and the inclined web rod are arranged between the first vertical rod, the second vertical rod and the inclined vertical rod.

[0010] Further, the fixed bolt mounting hole is arranged on the first vertical rod and the second vertical rod, and the fixed bolt mounting hole positions on the first vertical rod and the second vertical rod are aligned; a fixed bolt is passed through the fixed bolt mounting hole.

[0011] Further, the lateral stability support frame is fixed on the constructed shear wall by a fixed bolt, the fixed bolt passes through the fixed bolt mounting hole on the lateral stability support frame and is screwed into the pre-buried bolt sleeve in the constructed shear wall.

[0012] Further, both ends of the fixing bolt are provided with threads, and the middle part is not provided with threads; the fixing bolt is arranged at the threaded setting length of one end of the embedded bolt sleeve, which is smaller than the threaded setting length of one end of the lateral stabilizing support; and one end of the fixing bolt in the lateral stabilizing support is provided with a fixing nut.

[0013] Further, the steel bar clamp comprises a first clamp piece, a second clamp piece, a clamp stud, a clamp nut, a clamp support rod and a clamp perforation.

[0014] Further, both ends of the first clamp piece and the second clamp piece are flat sections, and the middle part is a circular arc section; the flat section of the first clamp piece is provided with the clamp perforation; and the circular arc section of the second clamp piece is provided with the clamp support rod, which is connected with the planar truss.

[0015] Further, the clamp stud is arranged on the inner side of the flat section of the second clamp piece, and the position of the clamp stud is aligned with the position of the clamp perforation.

[0016] Further, the clamp stud passes through the clamp perforation, the end of the clamp stud is provided with the clamp nut, and the bottom of the clamp nut is in contact with the outer side of the flat section of the first clamp piece.

[0017] Further, the second vertical rod and the inclined vertical rod are welded, and the horizontal web rod and the inclined web rod are alternately arranged between the first vertical rod, the second vertical rod and the inclined vertical rod.

[0018] A mounting method of a CAP1400 nuclear island heavy shear wall steel bar cage module construction support device, comprising the following steps:

[0019] S1, installing an embedded bolt sleeve: when constructing a shear wall below, according to the positioning information of the drawing, the embedded bolt sleeve is installed at the specified position, and the outer surface of the embedded bolt sleeve is flush with the outer edge of the shear wall;

[0020] S2, installing a lateral stabilizing support: after the concrete strength of the constructed shear wall reaches the design standard, the lateral stabilizing support on one side of the wall is first installed; when installing each lateral stabilizing support, the lateral stabilizing support is first hoisted to the designed position, then four fixing bolts are passed through the fixing bolt mounting holes on the lateral stabilizing support, and are screwed into the embedded bolt sleeve, and then the fixing nut is screwed on the fixing bolt, and clamping force is applied to the lateral stabilizing support by tightening the fixing nut;

[0021] S3, hoisting the steel bar cage module: using a crane to hoist the steel bar cage module to the designed position, and aligning with the reserved steel bars on the constructed shear wall to ensure the installation accuracy of the steel bar cage module;

[0022] S4, connecting the steel reinforcement cage module and the steel reinforcement clamp: fine-tune the vertical main reinforcement at the position of the steel reinforcement clamp to the circular segment between the first clamp piece and the second clamp piece, install the first clamp piece on the second clamp piece, pass the clamp stud on the second clamp piece through the corresponding clamp perforation on the first clamp piece, and expose the threads on the clamp stud outside the first clamp piece; then screw the clamp nut on the clamp stud, apply clamping force to the first clamp piece and the second clamp piece by tightening the clamp nut, and firmly clamp the vertical main reinforcement; sequentially connect the steel reinforcement cage module and the steel reinforcement clamp according to the above method;

[0023] S5, installing the lateral stabilizing support on the other side: install the lateral stabilizing support on the other side on the constructed shear wall according to the method in S2;

[0024] S6, connection of the steel reinforcement clamp on the lateral stabilizing support on the other side and the steel reinforcement cage module: after the lateral stabilizing support on the other side is firmly installed on the constructed shear wall, connect the steel reinforcement clamp on the lateral stabilizing support on the other side and the main reinforcement in the steel reinforcement cage module according to the method in S4;

[0025] S7, crane unhooking and installation of the steel reinforcement connecting sleeve: after all the connections between the lateral stabilizing support and the constructed shear wall and between the steel reinforcement clamp and the steel reinforcement cage module are completed, the crane can perform unhooking operation on the steel reinforcement cage module; at this time, the steel reinforcement cage module is firmly fixed on the constructed shear wall by the lateral stabilizing support; after unhooking, the steel reinforcement connecting sleeve is used to connect between the main reinforcement of the steel reinforcement cage module and the reserved steel reinforcement on the constructed shear wall; after the steel reinforcement connection is completed, the next step of installing the formwork and pouring the concrete can be carried out.

[0026] Compared with the prior art, the present application has the advantages and positive effects that:

[0027] 1. By installing the lateral stabilizing support on the constructed wall, the present application can limit the lateral displacement of the heavy shear wall steel reinforcement cage module and eliminate the safety risk of lateral collapse instability and damage, so that the crane can be directly unhooked after the steel reinforcement cage module is hoisted into position, thereby solving the problem of long crane occupation time and poor construction economy in the current steel reinforcement cage modular construction.

[0028] 2. The lateral stabilizing support of the present application is a steel space truss structure with great lateral stiffness, small deformation under the action of the steel reinforcement cage module tilting side pressure, and can meet the support safety requirements.

[0029] 3. The present application provides fixing bolts, and a single lateral stabilizing support is connected with the constructed shear wall through the fixing bolts, which can not only bear the self-weight load of the steel reinforcement cage module, but also bear the horizontal thrust and overturning moment generated by the steel reinforcement cage lateral tilting load.

[0030] 4、The installation method of the present application can quickly install the lateral transverse support, is simple to operate, can ensure the stability during installation, improves the installation efficiency, and guarantees the safety of personnel; the lateral stability support is arranged on both sides of the steel reinforcement cage module, so as to limit the lateral displacement of the steel reinforcement cage module after the crane is uncoupled, and eliminate the risk of instability and dumping. BRIEF DESCRIPTION OF DRAWINGS

[0031] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the application, and together with the description, explain the application. The present application should not be limited by the specific illustrative embodiments herein.

[0032] Figure 1 A perspective structural schematic view of the CAP1400 nuclear island heavy shear wall steel reinforcement cage module construction support device provided by the present application;

[0033] Figure 2 An A direction view of the present application;

[0034] Figure 3 An enlarged view at B of the present application;

[0035] Figure 4 A perspective structural schematic view of the lateral stability support of the present application;

[0036] Figure 5 A perspective structural schematic view of the planar truss of the present application;

[0037] Figure 6 An enlarged view at C of the present application;

[0038] Figure 7 A structural schematic view of the steel reinforcement clamp of the present application;

[0039] Figure 8 A schematic view of the connection between the steel reinforcement clamp and the vertical main reinforcement of the steel reinforcement cage module of the present application;

[0040] Figure 9 A schematic view of the embedded bolt sleeve on the constructed shear wall of the present application;

[0041] Figure 10 A structural schematic view of the embedded bolt sleeve, fixing bolt and fixing nut of the present application;

[0042] In the figure: 1 - constructed shear wall; 2 - reserved steel bars on the constructed shear wall; 3 - steel bar cage module; 31 - vertical main reinforcement; 4 - steel bar connecting sleeve; 5 - lateral stabilizing support; 51 - steel bar clamp; 511 - first clamp piece; 512 - second clamp piece; 513 - clamp stud; 514 - clamp nut; 515 - clamp strut; 516 - clamp perforation; 52 - planar truss; 521 - first vertical rod; 522 - second vertical rod; 523 - inclined vertical rod; 524 - horizontal web; 525 - inclined web; 526 - fixing bolt mounting hole; 53 - horizontal connecting rod; 6 - embedded bolt sleeve; 7 - fixing bolt; 8 - fixing nut. DETAILED DESCRIPTION

[0043] It should be noted that the following detailed description is illustrative only, and is intended to provide further description in order to provide a further understanding of the exemplary embodiments of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the application pertains.

[0044] It is to be noted that the terminology used herein is for purposes of describing the particular embodiments only and is not intended to be limiting of the example embodiments of the present application. As used in this disclosure, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0045] For the convenience of description, if "upper", "lower", "left", "right" are mentioned in the present application, it only means consistent with the upper, lower, left, right direction of the drawing itself, and does not limit the structure, only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0046] Example 1:

[0047] The present application will be described in detail below with reference to the accompanying drawings. The present embodiment discloses a large-diameter connecting pipe alignment device, as shown in Figure 1 The lateral stabilizing support 5 is arranged on both sides of the steel bar cage module 3. The lateral stabilizing support 5 includes a steel bar clamp 51, a planar truss 52, and a horizontal connecting rod 53. Two planar trusses 52 are arranged, and a horizontal connecting rod 53 is arranged between the two planar trusses 52. The steel bar clamp 51 is arranged on the top of the planar truss 52.

[0048] The plane truss 52 comprises a first vertical rod 521, a second vertical rod 522, an inclined vertical rod 523, a horizontal web rod 524, an inclined web rod 525 and a fixing bolt mounting hole 526; the first vertical rod 521 is located on the side close to the reinforcement cage module 3, and the second vertical rod 522 is located on the side away from the reinforcement cage module 3; the upper part of the second vertical rod 522 is provided with the inclined vertical rod 523, and the horizontal web rod 524 and the inclined web rod 525 are arranged between the first vertical rod 521, the second vertical rod 522 and the inclined vertical rod 523.

[0049] The fixing bolt mounting hole 526 is arranged on the first vertical rod 521 and the second vertical rod 522, the positions of the fixing bolt mounting holes 526 on the first vertical rod 521 and the second vertical rod 522 are aligned, and a fixing bolt 7 is arranged in the fixing bolt mounting hole 526. The lateral stability support 5 is fixed on the constructed shear wall 1 by the fixing bolt 7, the fixing bolt 7 passes through the fixing bolt mounting hole 526 on the lateral stability support 5 and is screwed into the pre-buried bolt sleeve 6 on the constructed shear wall 1.

[0050] Both ends of the fixing bolt 7 are provided with threads, and the middle part is not provided with threads; the length of the threads arranged at one end of the fixing bolt 7 is less than the length of the threads arranged at one end of the lateral stability support 5; and one end of the fixing bolt 7 in the lateral stability support 5 is provided with a fixing nut 8. The second vertical rod 522 and the inclined vertical rod 523 are welded, and the horizontal web rod 524 and the inclined web rod 525 are alternately arranged between the first vertical rod 521, the second vertical rod 522 and the inclined vertical rod 523.

[0051] The reinforcement clamp 51 comprises a first clamping piece 511, a second clamping piece 512, a clamp stud 513, a clamp nut 514, a clamp support rod 515 and a clamp perforation 516. Both ends of the first clamping piece 511 and the second clamping piece 512 are flat sections, and the middle part is a circular arc section; the clamp perforation 516 is arranged on the flat section of the first clamping piece 511; the clamp support rod 515 is arranged on the circular arc section of the second clamping piece 512, and the clamp support rod 515 is connected with the plane truss 52. The clamp stud 513 is arranged on the inner side of the flat section of the second clamping piece 512, and the position of the clamp stud 513 is aligned with the position of the clamp perforation 516. The clamp stud 513 passes through the clamp perforation 516, the end of the clamp stud 513 is provided with the clamp nut 514, and the bottom of the clamp nut 514 is in contact with the outer side of the flat section of the first clamping piece 511.

[0052] According to the weight and size of the reinforcement cage module 3, 1-2 lateral stability supports 5 are arranged on each side. The lateral stability support 5 is a steel space truss structure, has great lateral rigidity, has little deformation under the pressure of the dumping side of the reinforcement cage module 3, and can meet the safety requirement of support.

[0053] AsFigure 4 As shown, the lateral stabilizing support 5 comprises: a steel bar clamp 51, a planar truss 52 and a horizontal connecting rod 53. Each lateral stabilizing support 5 comprises 2 planar trusses 52. Several horizontal connecting rods 53 are arranged between the two planar trusses 52, thereby forming a space truss structure, eliminating the possibility of out-of-plane instability of a single planar truss. The horizontal connecting rod 53 is a round steel pipe with a diameter of 30-50 mm and a wall thickness of 6-10 mm. The two ends of the horizontal connecting rod 53 are connected to the planar truss 52 by welding.

[0054] As shown, Figure 5 As shown, the planar truss 52 comprises: a first vertical rod 521, a second vertical rod 522, an inclined vertical rod 523, a horizontal web rod 524, an inclined web rod 525 and a fixed bolt mounting hole 526. The first vertical rod 521, the second vertical rod 522 and the inclined vertical rod 523 are square steel pipes with the same specifications: side length of 80-150 mm and wall thickness of 6-10 mm; the horizontal web rod 524 and the inclined web rod 525 are round steel pipes with a diameter of 30-50 mm and a wall thickness of 6-10 mm. The first vertical rod 521 is arranged close to the heavy shear wall steel bar cage module 3 with a height of 4-6 m; the second vertical rod 522 is arranged on the side away from the heavy shear wall steel bar cage module 3 with a height of 1-2 m; the inclined vertical rod 523 is arranged above the second vertical rod 522 with an included angle of 150°-170° between the two and inclined towards the steel bar cage module 3. The inclined vertical rod 523 is connected to the upper end of the second vertical rod 522 by a slit weld. Several horizontal web rods 524 and inclined web rods 525 are arranged between the first vertical rod 521, the second vertical rod 522 and the inclined vertical rod 523 to improve the in-plane stiffness of the planar truss 52. The horizontal web rod 524 is a square steel pipe with the same specifications as the first vertical rod 521, the second vertical rod 522 and the inclined vertical rod 523. The inclined web rod 525 is a round steel pipe with a diameter of 30-50 mm and a wall thickness of 6-10 mm. The length of the horizontal web rod 524 varies from 50-80 cm, and its two ends are welded to the first vertical rod 521, the second vertical rod 522 or the inclined vertical rod 523. The two ends of the inclined web rod 525 are welded to the first vertical rod 521, the second vertical rod 522, the inclined vertical rod 523 or the horizontal web rod 524.

[0055] As shown, Figures 5-6 As shown, four fixed bolt mounting holes 526 are arranged on each planar truss 52, two of which are arranged on the first vertical rod 521 and the other two are arranged on the second vertical rod 522. The fixed bolt mounting holes 526 on the first vertical rod 521 correspond to those on the second vertical rod 522 one by one, for the fixed bolts 7 to pass through. The diameter of the fixed bolt mounting hole 526 is 1.5-2.0 mm larger than that of the fixed bolt 7 to ensure that the fixed bolt 7 can pass through the fixed bolt mounting hole 526 smoothly.

[0056] As shown, Figure 4 and7 As shown, each individual planar truss 52 has a steel clamp 51 arranged at its top, with their centerlines coinciding to ensure no eccentric load. The steel clamp 51 includes: a first clamping plate 511, a second clamping plate 512, a clamping stud 513, a clamping nut 514, a clamping strut 515, and clamping holes 516. Both the first clamping plate 511 and the second clamping plate 512 are 10–15 mm thick and 5–8 cm wide; the ends of the clamping plates are straight sections, and the middle section is an arc section, with the straight section being 5–8 cm long and the arc section having a diameter of 5 cm. Symmetrical circular clamping holes 516 are formed on the straight sections at both ends of the first clamping plate 511, allowing the clamping stud 513 to pass through during installation; the diameter of the holes 516 is 1–1.5 mm larger than the diameter of the clamping stud 513. Each of the two straight ends of the second clamping plate 512 is equipped with a clamping stud 513, with a diameter of 10-15mm, and its center position corresponds one-to-one with the center of the clamping through hole 516 on the first clamping plate 511. The clamping stud 513 and the second clamping plate 512 are connected by welding. A clamping support rod 515 is provided at the rear of the second clamping plate 512 to connect the rebar clamp 51 to the planar truss 52. The clamping support rod 515 is made of solid round steel with a diameter of 20-35mm, and its two ends are welded to the second clamping plate 512 and the first upright 521 of the planar truss 52, respectively. The length of the clamping support rod 515 needs to be calculated and determined according to the thickness of the protective layer of the shear wall and the diameter of the rebar in the rebar cage module 3. It is necessary to ensure that when the first upright 521 is close to the outer edge of the shear wall, the arc section of the second clamping plate 512 is just close to the vertical main rebar 31 of the rebar cage module 3. The steel bar clamp 51 clamps the vertical main reinforcement 31 of the steel cage module 3 through the first clamp and the second clamp, which can stably connect the steel cage module 3 to the lateral stabilizing support 5, so that after the crane is unhooked, the load of the steel cage module 3 can be transferred to the lateral stabilizing support 5, and then to the constructed shear wall 1.

[0057] like Figure 7 and 8 As shown, when the rebar clamp 51 is in use, the first clamping plate 511 and the second clamping plate 512 clamp the vertical main reinforcement bars between them from two directions. The clamping stud 513 on the second clamping plate 512 passes through the corresponding clamping through hole 516 on the first clamping plate 511, and the thread on the clamping stud 513 is exposed on the outside of the first clamping plate 511. Then, the clamping nut 514 is screwed onto the clamping stud 513. By tightening the clamping nut 514, a clamping force is applied to the first clamping plate 511 and the second clamping plate 512 to firmly clamp the vertical main reinforcement bars 31 of the rebar cage module 3.

[0058] like Figure 1 , 2As shown in Figs. 9 and 10, the single lateral stabilizing support 5 is fixed to the constructed shear wall 1 by four fixing bolts 7. The diameter of the fixing bolt 7 is 20-35 mm, and the material of the fixing bolt 7 is 10.9 grade high-strength bolt material. During installation, the fixing bolt 7 is screwed into the embedded bolt sleeve 6 embedded in the constructed shear wall 1 through the fixing bolt installation hole 526 on the lateral stabilizing support 5, and then the fixing nut 8 is screwed on the fixing bolt 7 to apply clamping force to the lateral stabilizing support 5 by tightening the fixing nut 8, so as to fix the lateral stabilizing support 5 to the constructed shear wall 1. The embedded bolt sleeve 6 is cylindrical, and the material thereof is the same as that of the fixing bolt 7. The inner side of the embedded bolt sleeve 6 is provided with a thread matched with the fixing bolt 7. The embedded bolt sleeve 6 is embedded in the shear wall of the lower layer in advance, and the outer surface thereof is flush with the outer edge of the shear wall. The single lateral stabilizing support 5 is connected to the constructed shear wall 1 by four fixing bolts 7, and can not only bear the dead load of the steel reinforcement cage module 3, but also bear the horizontal thrust and overturning bending moment generated by the lateral dumping load of the steel reinforcement cage module 3.

[0059] Example 2

[0060] The application further provides a CAP1400 nuclear island heavy shear wall steel reinforcement cage module construction support method, and the support device is used in the support, and the specific steps are as follows:

[0061] S1, installing an embedded bolt sleeve: during construction of the shear wall of the lower layer, the embedded bolt sleeve 6 is embedded in the specified position in advance according to the positioning information of the drawing. The outer surface of the embedded bolt sleeve 6 is flush with the outer edge of the shear wall.

[0062] S2, installing a lateral stabilizing support: after the concrete strength of the constructed shear wall 1 reaches the design standard, the lateral stabilizing support 5 on one side of the wall body is first installed. During installation of each lateral stabilizing support 5, the lateral stabilizing support 5 is first hoisted to the design position, then the four fixing bolts 7 are screwed into the embedded bolt sleeve 6 through the fixing bolt installation hole 526 on the lateral stabilizing support 5, and then the fixing nut 8 is screwed on the fixing bolt 7 to apply clamping force to the lateral stabilizing support 5 by tightening the fixing nut 8.

[0063] S3, hoisting a steel reinforcement cage module: the steel reinforcement cage module 3 is hoisted to the design position by using a crane, and is aligned with the reserved steel reinforcement 2 on the constructed shear wall, so as to ensure the installation accuracy of the steel reinforcement cage module 3.

[0064] S4, connecting the steel reinforcement cage module and the steel reinforcement clamp: the vertical main reinforcement at the position of the steel reinforcement clamp 51 is fine-tuned to the circular segment between the first clamping piece 511 and the second clamping piece 512, the clamp stud 513 on the second clamping piece 512 passes through the corresponding clamp perforation 516 on the first clamping piece 511, and the thread on the clamp stud 513 is exposed outside the first clamping piece 511. Then the clamp nut 514 is screwed on the clamp stud 513, the clamping force is applied to the first clamping piece 511 and the second clamping piece 512 by tightening the clamp nut 514, so as to firmly clamp the vertical main reinforcement. The heavy shear wall steel reinforcement cage module 3 is connected with the steel reinforcement clamp 51 in sequence according to the above method;

[0065] S5, installing the lateral stabilizing support on the other side: the lateral stabilizing support 5 on the other side of the shear wall is installed on the constructed shear wall 1 according to the method in S2;

[0066] S6, connection of the steel reinforcement clamp on the other side and the steel reinforcement cage module: after the lateral stabilizing support 5 on one side is firmly installed on the constructed shear wall 1, the steel reinforcement clamp 51 on the lateral stabilizing support 5 on the other side is connected with the main reinforcement in the heavy shear wall steel reinforcement cage module 3 according to the method in S4;

[0067] S7, crane hooking and installation of the steel reinforcement connecting sleeve: after all the connections between the lateral stabilizing support 5 and the constructed shear wall 1 and between the steel reinforcement clamp 51 and the steel reinforcement cage module 3 are completed, the crane can perform the hooking operation on the steel reinforcement cage module 3; at this time, the steel reinforcement cage module 3 is firmly fixed on the constructed shear wall 1 by the lateral stabilizing support 5. After the hooking, the steel reinforcement connecting sleeve 4 is used to connect between the main reinforcement of the steel reinforcement cage module 3 and the reserved steel reinforcement 2 on the constructed shear wall. After the steel reinforcement connection is completed, the next step of installing the formwork and pouring the concrete can be carried out.

[0068] The CAP1400 nuclear island heavy shear wall steel reinforcement cage module construction support device and method designed by the application can limit the lateral displacement of the shear wall steel reinforcement cage module and eliminate the safety risk of lateral tilting instability and failure by installing the lateral stabilizing support on the constructed wall, so that the crane can directly hook after the steel reinforcement cage module is hoisted and positioned, and the problem of long crane occupation time and poor construction economy in the current steel reinforcement cage modular construction is solved.

[0069] The above describes the specific embodiments of the application in conjunction with the drawings, but is not a limitation on the protection scope of the application, and those skilled in the art should understand that various modifications or changes made by those skilled in the art on the basis of the technical solutions of the application without creative labor are still within the protection scope of the application.

Claims

1. A CAP1400 nuclear island heavy shear wall steel bar cage module construction support device, characterized in that, The lateral stability support is arranged on both sides of the reinforcement cage module and is fixed on the constructed shear wall by fixing bolts. The lateral stability support comprises a reinforcement clamp, a planar truss and a horizontal connecting rod.

2. The CAP1400 nuclear island heavy shear wall steel bar cage module construction support device according to claim 1, characterized in that, The planar truss comprises a first vertical rod, a second vertical rod, an inclined vertical rod, a horizontal web rod, an inclined web rod and a fixing bolt mounting hole.

3. The CAP1400 nuclear island heavy shear wall steel bar cage module construction support device according to claim 2, characterized in that, The first vertical rod is arranged on the side close to the reinforcement cage module, and the second vertical rod is arranged on the side away from the reinforcement cage module.

4. The CAP1400 nuclear island heavy shear wall steel bar cage module construction support device according to claim 3, characterized in that, The upper part of the second vertical rod is provided with the inclined vertical rod.

5. The CAP1400 nuclear island heavy shear wall steel bar cage module construction support device according to claim 1, characterized in that, The fixing bolt mounting hole is arranged on the first vertical rod and the second vertical rod, and the positions of the fixing bolt mounting holes on the first vertical rod and the second vertical rod are aligned.

6. The CAP1400 nuclear island heavy shear wall steel bar cage module construction support device according to claim 5, characterized in that, The fixing bolt is screwed into the embedded bolt sleeve in the constructed shear wall through the fixing bolt mounting hole on the lateral stability support.

7. The CAP1400 nuclear island heavy shear wall steel bar cage module construction support device according to claim 6, characterized in that, The two ends of the fixing bolt are provided with threads, and the middle part is not provided with threads.

8. The CAP1400 nuclear island heavy shear wall steel bar cage module construction support device according to claim 7, characterized in that, The length of the thread arranged at one end of the fixing bolt in the embedded bolt sleeve is smaller than the length of the thread arranged at one end of the fixing bolt in the lateral stability support.

9. The installation method of a CAP1400 nuclear island heavy shear wall steel bar cage module construction support device according to any one of claims 1-8, characterized in that, One end of the fixing bolt in the lateral stability support is provided with a fixing nut. The first clamping piece and the second clamping piece are provided with a clamping bolt and a clamping nut. The two ends of the first clamping piece and the second clamping piece are flat sections, and the middle part is a circular arc section. The clamping bolt is arranged on the inside of the flat section of the second clamping piece. The end of the clamping bolt is provided with the clamping nut, and the bottom of the clamping nut is in contact with the outside of the flat section of the first clamping piece. The steps include: S1, installing the embedded bolt sleeve: when the lower layer of shear wall is constructed, the embedded bolt sleeve is installed at the specified position according to the drawing positioning information, and the outer surface of the embedded bolt sleeve is flush with the outer edge of the shear wall; S2, installing the lateral stability support: after the concrete strength of the constructed shear wall reaches the design standard, the lateral stability support on one side of the wall is installed first. S3, hoisting the reinforcement cage module: the reinforcement cage module is hoisted to the designed position by using a crane, and the reserved reinforcement on the constructed shear wall is aligned to ensure the installation accuracy of the reinforcement cage module. S4, connecting the steel bar cage module and the steel bar clamp: fine-tune the vertical main reinforcement at the position of the steel bar clamp to the circular segment between the first clamp piece and the second clamp piece, install the first clamp piece on the second clamp piece, pass the clamp stud on the second clamp piece through the corresponding clamp perforation on the first clamp piece, and expose the thread on the clamp stud outside the first clamp piece; then screw the clamp nut on the clamp stud, apply clamping force to the first clamp piece and the second clamp piece by tightening the clamp nut, and firmly clamp the vertical main reinforcement; connect the steel bar cage module and the steel bar clamp in sequence according to the above method; S5, installing the lateral stabilizing support on the other side: install the lateral stabilizing support on the other side on the constructed shear wall according to the method in S2; S6, connecting the steel bar clamp on the other side and the steel bar cage module: after the lateral stabilizing support on the other side is firmly installed on the constructed shear wall, connect the steel bar clamp on the other side and the main reinforcement in the steel bar cage module according to the method in S4; S7, crane unhooking and steel bar connecting sleeve installation: after all the connections between the lateral stabilizing support and the constructed shear wall and between the steel bar clamp and the steel bar cage module are completed, the crane can perform unhooking operation from the steel bar cage module; at this time, the steel bar cage module is firmly fixed on the constructed shear wall by the lateral stabilizing support; after unhooking, connect the steel bar connecting sleeve between the main reinforcement of the steel bar cage module and the reserved steel bars on the constructed shear wall; after the steel bars are connected, the next step of installing the formwork and pouring the concrete can be carried out.

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