A shallow silo wall slip form construction method

Abstract

The application relates to the technical field of slip-form construction, in particular to a shallow round bin wall slip-form construction method. A lifting device is arranged on a lifting frame and used for lifting the formwork of the bin wall; the formwork of the bin wall is detachably hoisted below the lifting frame through the lifting device; one side of the formwork away from the bin wall is detachably connected with a surrounding ring; the slip-form construction method comprises a formwork replacement measure; the replacement measure comprises the following steps: S1, disconnecting the old formwork from the surrounding ring at the corresponding position; S2, simultaneously starting reverse rotation of the lifting device to keep the position of the old formwork unchanged until the old formwork is separated from the lifting frame; S3, disconnecting the old formwork from the lifting device and replacing the old formwork with a new formwork; and S4, starting forward rotation of the lifting device until the new formwork is reset and the new formwork is reconnected with the surrounding ring at the corresponding position. Through the above arrangement, the continuous influence of the bonding material on the inner side of the formwork on the concrete demolding effect can be avoided on the basis of the slip-form construction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of slip-form construction, in particular to a shallow round warehouse wall slip-form construction method. BACKGROUND

[0002] Slip-form construction is an efficient construction technology widely used in large-scale warehouse projects. This technology mainly includes:

[0003] Form assembly: Assemble the form on the inside and outside of the wall, and use the door-shaped steel frame or double-beam "open" steel frame to connect the inner and outer forms into one;

[0004] Hydraulic jack arrangement: Arrange multiple oil hydraulic jacks or hydraulic jacks evenly around the circumference to push the formwork system to slowly slide up;

[0005] Concrete pouring: During the sliding process, the reinforcement binding and concrete pouring of the wall are carried out simultaneously;

[0006] Equipment lifting and adjustment: During the sliding process, the equipment needs to be constantly checked and adjusted to ensure the stability of the formwork system and the quality of the concrete.

[0007] Based on the above construction technology, the slip-form construction has the construction feature of one-time forming. Correspondingly, due to the high frequency of repeated use of the form, a large amount of concrete material is bonded on the inside of the form. During the slip-form construction, the bonded concrete material on the inside of the form will cause cutting and sliding of the formed concrete, thereby affecting the flatness of the wall.

[0008] Therefore, it is necessary to provide an improved technical solution to the above-mentioned problems of the prior art. SUMMARY

[0009] The purpose of the present application is to provide a shallow round warehouse wall slip-form construction method to solve or alleviate the problems existing in the prior art.

[0010] In order to achieve the above-mentioned purpose, the present application provides the following technical solution:

[0011] A shallow round warehouse wall slip-form construction method, a lifting device is arranged on the lifting frame for lifting the formwork of the wall; the formwork of the wall is detachably hoisted below the lifting frame by the lifting device; the side of the formwork away from the wall is detachably connected with the enclosure;

[0012] The slip-form construction method includes a replacement measure of the formwork;

[0013] The replacement measure includes:

[0014] Step S1: disconnect the old formwork from the corresponding position of the enclosure;

[0015] Step S2: sliding up construction, while starting the reverse rotation of the lifting device to keep the old formwork position unchanged until the old formwork is separated from the lifting frame;

[0016] Step S3: disconnect the old formwork from the lifting device and replace it with a new formwork;

[0017] Step S4: start the forward rotation of the lifting device until the new formwork is reset, and reconnect the new formwork to the corresponding position ring.

[0018] The shallow silo wall slip form construction method as described above, preferably, the lifting device is provided with two, the formwork includes an inner formwork and an outer formwork;

[0019] The two lifting devices are arranged one by one corresponding to the inner formwork and the outer formwork.

[0020] The shallow silo wall slip form construction method as described above, preferably, the lifting device is radially movably arranged on the lifting frame; the ring is radially movably arranged on the lifting frame through the bracket.

[0021] The shallow silo wall slip form construction method as described above, preferably, the ring is rotatably clamped at one end of the bracket close to the silo wall;

[0022] The slip form construction method includes an angle adjustment measure of the formwork;

[0023] The angle adjustment measure includes: releasing the fixing of the lifting device corresponding to the formwork to be adjusted in angle and the lifting frame, releasing the fixing of the bracket corresponding to the ring of the formwork to be adjusted in angle and the lifting frame, radially moving the lifting device and the bracket until the formwork to be adjusted in angle is at the design angle of the silo wall, and restoring the fixing between the lifting device and the lifting frame and the fixing between the bracket and the lifting frame.

[0024] The shallow silo wall slip form construction method as described above, preferably, the slip form construction method includes a distance adjustment measure between the inner formwork and the outer formwork;

[0025] The distance adjustment measure includes: releasing the fixing of the lifting device corresponding to the formwork at the position to be adjusted in distance and the lifting frame, releasing the fixing of the bracket corresponding to the ring at the position to be adjusted in distance and the lifting frame, radially moving the lifting device and the bracket until the distance between the inner formwork and the outer formwork at the position to be adjusted in distance is at the design thickness of the silo wall, and restoring the fixing between the lifting device and the lifting frame and the fixing between the bracket and the lifting frame.

[0026] The shallow silo wall slip form construction method as described above, preferably, when the thickness of the new formwork changes, the step S3 includes:

[0027] Step S31: disconnect the old template from the lifting device;

[0028] Step S32: disconnect the old template from the lifting device and the lifting frame, disconnect the old template from the lifting frame, and move the lifting device and the bracket radially until the new template can enter the lifting frame.

[0029] The shallow silo wall slip form construction method described above preferably includes a deviation correction measure.

[0030] The deviation correction measure includes using the twist and pull method for twist correction.

[0031] The shallow silo wall slip form construction method described above preferably includes a deviation correction measure.

[0032] The deviation correction measure includes using the platform tilt method for vertical correction.

[0033] The shallow silo wall slip form construction method described above preferably includes a support rod reinforcement measure.

[0034] The reinforcement measure includes embedding two additional rods parallel to the support rod in the silo wall concrete, the two additional rods and the support rod are triangularly distributed, a horizontal short rod is used to reinforce the additional rods and the support rod, and the horizontal short rod, the support rod and the additional rods form a triangular lattice column as a whole.

[0035] The reinforcement measure is performed before the empty slip construction.

[0036] The shallow silo wall slip form construction method described above preferably includes a radial retention measure for the silo wall.

[0037] The radial retention measure includes setting a center disc at the center of the silo wall, and using a plurality of pull rods to respectively connect the center disc and a plurality of circumferentially distributed lifting frames; one end of the pull rod is welded and fixed to the center disc, and the other end is connected to the corresponding lifting frame through a basket bolt.

[0038] Before the slip-up construction, all the pull rods are first tightened, then a level is placed on the cross beam of the lifting frame, the basket bolt is adjusted until the cross beams of the plurality of lifting frames are all horizontal.

[0039] Compared with the closest prior art, the technical scheme of the embodiment of the present application has the following beneficial effects:

[0040] The upper limit of the template reuse times is set, when the template reuse times reaches the upper limit value, the replacement measure of the template is executed, or when the surface scratch appears after the concrete is discharged, the replacement measure of the template is executed, through the above setting, the continuous influence of the template inner side bonding material on the concrete discharge effect can be avoided from the root on the basis of the slip form construction. BRIEF DESCRIPTION OF DRAWINGS

[0041] The accompanying drawings, which form a part of the present description, are included to provide further understanding of the application and are incorporated in and constitute a part of this application. The drawings illustrate exemplary embodiments of the present application and, together with the description, serve to explain the application. In the drawings:

[0042] Figure 1 The facade structure schematic diagram of the slip form construction system provided according to some embodiments of the application is shown in the figure;

[0043] Figure 2 The template replacement schematic diagram provided according to some embodiments of the application is shown in the figure;

[0044] Figure 3 The template angle adjustment schematic diagram provided according to some embodiments of the application is shown in the figure;

[0045] Figure 4 The distance adjustment schematic diagram between the inner and outer templates provided according to some embodiments of the application is shown in the figure;

[0046] Figure 5 The plane layout schematic diagram of the slip form construction system provided according to some embodiments of the application is shown in the figure.

[0047] BRIEF DESCRIPTION OF DRAWINGS

[0048] 1, lifting frame; 2, operation platform system; 3, bracket; 4, hanging scaffold; 5, enclosure; 6, inner template; 7, outer template; 8, support rod; 9, jack; 10, lifting device; 11, center disc; 12, pull rod; 13, concrete; 14, cross beam; 15, stand column. DETAILED DESCRIPTION

[0049] The application will be described in detail below with reference to the accompanying drawings and embodiments. Each example is provided by way of explanation of the application rather than limitation of the application. In fact, those skilled in the art will appreciate that modifications and variations to the application can be made without departing from the scope or spirit of the application. For example, features shown as or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the application encompass such modifications and variations as fall within the scope of the appended claims and their equivalents.

[0050] In the following description, the terms "first / second / third" are merely used to distinguish similar objects, and do not represent a specific order or sequence of the objects. It is understood that the "first / second / third" can be interchanged in a specific order or sequence as allowed, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein.

[0051] 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 this disclosure belongs. The terminology used in the description herein is for describing the embodiments of the disclosure only and is not intended to be limiting of the disclosure.

[0052] In the description of the present application, the orientations or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and do not require the present application to be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present application. The terms "connected", "connected", "provided" used in the present application should be understood broadly, for example, can be fixedly connected, can be detachably connected, can be directly connected, or indirectly connected through intermediate components, can be wired electrical connection, wireless electrical connection, or wireless communication signal connection, and the specific meaning of the above terms can be understood by those skilled in the art according to the specific circumstances.

[0053] The following will be described in detail with reference to the accompanying drawings. Figures 1-5 A shallow round warehouse wall slip form construction method of the present application will be further described in detail.

[0054] The slip form construction system includes a formwork system, a hydraulic lifting system, and an operating platform system 2.

[0055] Among them,

[0056] The formwork system includes a lifting frame 1, a formwork, and a surrounding ring 5, wherein the lifting frame 1 is a main load-bearing component of the slip form device used to fix the jacks 9, the surrounding ring 5, and maintain the geometric shape of the formwork, directly bearing all loads of the formwork, the surrounding ring 5, and the operating platform, and the lateral pressure of the formwork 13 on the formwork. The surrounding ring 5 is a supporting component used to maintain the geometric shape of the formwork, and the self-weight of the formwork, the frictional resistance and lateral pressure borne by the formwork, and the self-weight and construction load directly transmitted by the operating platform are all transmitted to the column 15 of the lifting frame 1 through the surrounding ring 5.

[0057] In the specific embodiments of the present application, the lifting frame 1 comprises a cross beam 14, a stand column 15, and a bracket 3, wherein the cross beam 14 and the two stand columns 15 form a portal frame, and the bracket 3 is symmetrically arranged on the two stand columns 15, wherein the cross beam 14 is made of a 12# channel steel, the stand column 15 is made by welding a 14# channel steel and a steel plate, and the bracket 3 is made of a steel pipe. The inner formwork 6 of the silo wall is made of a standard combined steel formwork, mainly P3012 (1200*300mm), and a small amount of P1012 (1200*100mm) formwork is used to fill the gaps to ensure the circumferential joint of the silo wall. The outer formwork 7 of the silo wall is made of a large steel formwork of 3000*100*3mm, and the formwork gaps are connected by hook bolts. The surrounding ring 5 is made of a steel plate, and is arranged in four circumferential lengths along the inner and outer formworks, with a spacing of 700mm between the upper and lower surrounding rings 5. The joints of the surrounding ring 5 are connected by butt welding and fixed by binding strips. The horizontal spacing of the upper and lower joints of the surrounding ring 5 is not less than 1m, and should not be less than 1 / 3 of the length of the adjacent butt joint. The distance of the surrounding ring 5 from the edge of the formwork is 250mm. The connection between the formwork and the surrounding ring 5 is fastened by high-strength bolts, and the surrounding ring 5 is arranged at the end of the bracket 3 close to the silo wall.

[0058] The hydraulic lifting system comprises a hydraulic control console, an oil circuit, a jack 9, and a support rod 8. The hydraulic control console serves as the control center of the entire slip form device, and is composed of a motor, a gear pump, an electromagnetic reversing valve, a pressure regulating valve, an oil distributor, a needle valve, a pressure gauge, an oil tank, and starting and indicating electrical circuits. The support rod 8 serves as the track of the jack 9 and the load-bearing strut of the slip form construction system. During construction, the self-weight of the slip form construction system, the frictional resistance of the concrete 13 to the formwork, and all the construction loads on the operation platform are all transmitted to the support rod by the jack 9. The carrying capacity, diameter, surface roughness, and material of the support rod 8 are all adapted to those of the jack 9. The support rod 8 is arranged along the circumference of the silo wall and is finally embedded in the concrete 13 as the lifting of the slip form is completed.

[0059] In the specific embodiments of the present application, the YKT-56 type hydraulic control console is used in combination with the arrangement of the mixed oil circuit. Each oil distribution pipe is passed through the 14# channel steel of the stand column 15 from below the platform plate to above the cross beam 14 and connected to the interface of the jack 9. Then, the square wood is fixed in the channel steel by iron wire to protect the oil pipe. When binding the horizontal steel bars, it is prohibited to pass into the lifting frame 1 from above the lifting frame 1, so as to prevent the oil pipe from being pierced by the steel bars. The jack 9 is specifically a GYD-60 type through hydraulic jack 9. Enough jacks 9 are used to bear 80% of the total combined weight and the thrust of the jacks 9. The jacks 9 are reasonably arranged in the plane to ensure that the load can be evenly distributed to each jack 9. The support rod 8 is made of Q235 material, with a length of 6m, a specification of Ф48.3*3.25mm high-frequency welded steel pipe, an allowable deviation of pipe diameter of ±0.5mm, an allowable deviation of wall thickness of ±10%, and an allowable deviation of bending of ≤1‰. The surface of the steel pipe should not have oil stains or rust.

[0060] The operation platform system 2 comprises an inner and outer construction operation platform and an inner and outer hanging scaffold 4. The construction operation platform is an operation site for the slip-form construction, is a work site for binding steel bars, pouring concrete 13, and finishing the concrete 13, and is a setting table for oil control systems and other equipment. The construction operation platform bears a large load and must have sufficient strength and rigidity. The hanging scaffold 4 is used for checking the concrete 13 strength after the warehouse wall is demoulded, for trimming and treating quality defects of the warehouse wall, for cleaning the reserved opening, embedded parts, and original slurry finishing, and the like.

[0061] In the embodiments of the present application, the operation platform adopts an inner and outer triangular frame structure arrangement mode. The outer platform is designed to have a width of 1.7 m, and the inner platform is designed to have a width of 1.7 m. An inner and outer hanging scaffold 4 made of a Ф16 round steel is arranged below the inner and outer operation platforms. The protection of the operation platform adopts a φ48.3*2.8 mm steel pipe with a height of 1.5 m. One guardrail upright rod is arranged on each of the triangular platforms. A horizontal rod adopts a φ48.3*2.8 mm steel pipe with a spacing of 500 mm and is connected with the upright rod by using a cross buckle. The inner side of the guardrail is fully hung with a dense mesh, which is bound on the horizontal rod by using a wire (double wire). The horizontal protection guardrail of the hanging scaffold 4 is a φ14 threaded steel bar, of which 2 are arranged on the inner side and 5 are arranged on the outer side with a spacing of not more than 500 mm. A safety net is fully hung on the outer side and the bottom to ensure safety. The dense mesh is bound and connected with the horizontal rod by using a wire (double wire). The main parts of the whole platform adopt welding, and the secondary parts adopt standard part connection.

[0062] The slip-form construction has the characteristics of "sliding and rising, pouring, binding, and finishing at the same time" and includes construction preparation, installation of the slip-form construction system, steel bar binding, sliding and rising construction, concrete 13 construction, and removal of the slip-form construction system.

[0063] The construction preparation includes technical preparation, site preparation, material and equipment preparation, and the like.

[0064] The construction preparation includes technical preparation, site preparation, material and equipment preparation, and the like.

[0065] The installation of the slip-form construction system includes installation of the lifting frame 1, installation of the surrounding ring 5, installation of the formwork, installation of the hydraulic lifting system, and installation of the hanging scaffold 4. The height difference at the joint position of the circumferentially adjacent two support rods 8 needs to be greater than or equal to 1 m. The proportion of the number of joints at the same height to the total number of the support rods 8 should be less than or equal to 1 / 4. The axial connection of the support rods 8 adopts a mode of first socketing and then welding. Specifically, the pipe head of about 70 mm long at the end of the support rod 8 is compressed to an outer diameter of 38 mm by a steel pipe reducing machine, so that it can be smoothly inserted into another support rod 8 with a φ48.3 mm. Then, the joint is point-welded and polished smoothly, so that the joint can smoothly pass through the jack 9. After the joint passes through the jack 9, the joint is timely fully welded and reinforced. The hanging scaffold 4 is installed when the formwork is slid to a distance of 1.8 m from the assembly surface.

[0066] Steel reinforcement binding includes horizontal reinforcement, vertical reinforcement binding. The vertical reinforcement lap length is 40d, the joint is staggered, and the steel joint in any horizontal section (the lap length range is the same section) does not exceed 25% of the total number of sections. The lap length of the ring-shaped horizontal reinforcement is 60d, the joint is staggered, the joint horizontal direction spacing is not less than one lap length and not less than 1m, and every three steel reinforcements in the same vertical section has one lap joint, and the inner and outer horizontal reinforcements are also uniformly staggered.

[0067] Slip-up construction includes initial slip-up, normal slip-up, and final slip-up.

[0068] (1) Initial slip-up: Before slip-up, test slip-up must be carried out first. The formwork is 1.2m high, and the concrete is poured in 13 four times in positive and reverse directions to 2 / 3 of the formwork height, i.e. 800mm, about 6 hours (according to the weather conditions) to start test slip-up. During test slip-up, all jacks 9 should be lifted 1-2 strokes at the same time, about 3-5cm, and the concrete 13 out of the mold strength is observed. When the concrete 13 poured in the first layer reaches 0.1-0.3Mpa, i.e. the concrete 13 out of the mold does not collapse and is not lifted by the formwork (finger marks can be seen when pressing with fingers, and the mortar does not stick to the fingers), test slip is carried out. If it meets the requirements, the formwork can be slipped to 200mm high, and all lifting equipment and formwork systems are comprehensively checked. After trimming, normal slip-up can be entered, and the normal concrete demolding strength should be controlled at 0.2-0.4Mpa.

[0069] (2) Normal slip-up: After initial slip, it can be poured and poured in layers according to the planned normal shift and flow section. During normal slip-up, the time interval between two slip-ups is determined by the time when the concrete reaches 0.2-0.4MPa cubic strength on the slip-up platform using the penetration resistance method. The height control of each pouring layer uses one positive and reverse cycle of material distribution, and each cycle of material distribution is 100mm high, and one layer of steel reinforcement is bound and one layer of concrete is distributed. When the air temperature is higher, 1-2 strokes are lifted in the middle to prevent sticking to the mold. Each layer of concrete 13 is poured, and the formwork is lifted by one pouring layer height, and the concrete is poured continuously.

[0070] (3) Final slip-up: When the slip-up approaches the top, the last layer of concrete 13 should be poured at one time, and the concrete 13 must be poured on a horizontal plane. When the concrete 13 is poured to the top of the ring beam, stop pouring and start empty slip, and empty slip to the eave below the formwork 30-50mm lower than the top surface of the concrete 13, stop slip-up, and then remove the slip-up equipment according to the steps.

[0071] Concrete 13 construction: Before pouring concrete 13, the construction section must be reasonably divided, the operator arranged, and the steel bar and embedded part processing in accordance with the progress requirement prepared in advance. The shallow silo sliding height is from-1.500m to 22.450m, the concrete 13 is pumped by car, the concrete 13 is continuously poured, directly into the mold, the top surface of each pouring is 3-5cm lower than the mold, and the sliding speed of the mold is determined according to the strength of the concrete. The concrete 13 is plastic after being taken out of the mold, and timely inspection and modification are carried out. The surface is repaired and polished by a special person. For the problems of cracking and collapse and the protection layer falling off, the rubbing personnel should repair in time before the concrete 13 solidifies. However, when the mold is reused and the inner side is bonded with a large amount of concrete 13 material, it will continuously negatively affect the flatness of the concrete 13 out of the mold, and then a large number of rubbing personnel are required to repair, which will seriously restrict the progress of the sliding form construction on the one hand, and will also cause a large amount of waste of human cost on the other hand.

[0072] A shallow silo wall sliding form construction method, the lifting device 10 is arranged on the lifting frame 1 and used for lifting the mold plate of the wall; the mold plate of the wall is detachably hoisted below the lifting frame 1 through the lifting device 10; the side, away from the wall, of the mold plate is detachably connected with the enclosure 5;

[0073] The sliding form construction method comprises a replacement measure of the mold plate;

[0074] The replacement measure comprises:

[0075] Step S1: disconnect the old mold plate from the corresponding position enclosure 5;

[0076] Step S2: slide and construct, and simultaneously start the reverse rotation of the lifting device 10 to keep the position of the old mold plate unchanged until the old mold plate is separated from the lifting frame 1;

[0077] Step S3: disconnect the old mold plate from the lifting device 10 and replace it with a new mold plate;

[0078] Step S4: start the forward rotation of the lifting device 10 until the new mold plate is reset, and the new mold plate is reconnected with the corresponding position enclosure 5.

[0079] An upper limit of the number of times of reusing the mold plate is set, and when the number of times of reusing the mold plate reaches the upper limit value, the replacement measure of the mold plate is performed, or when scratches appear on the surface of the concrete 13 after being taken out of the mold, the replacement measure of the mold plate is performed.

[0080] In the specific embodiments of the present application, multiple lifting frames 1 are uniformly and spacedly arranged along the circumference of the wall. The lifting device 10 is a winch arranged above the cross beam 14 corresponding to the lifting frame 1, connected to the hanging ring at the top of the formwork through a steel wire rope, and the side of the formwork away from the wall is threadedly connected to the corresponding position of the surrounding ring 5 through high-strength bolts. Through the above arrangement, the continuous influence of the residual bonding material on the inside of the formwork on the demolding effect of the concrete 13 can be avoided from the root on the basis of the slip-form construction.

[0081] The lifting device 10 is provided with two, and the formwork includes an inner formwork 6 and an outer formwork 7.

[0082] The two lifting devices 10 are arranged one by one corresponding to the inner formwork 6 and the outer formwork 7.

[0083] In the specific embodiments of the present application, two lifting devices 10 are symmetrically arranged on each lifting frame 1, which are respectively used to connect the inner formwork 6 and the outer formwork 7. When the surface of the concrete 13 is scratched after demolding, the replacement measures of the formwork can be independently performed on the inner formwork 6 or the outer formwork 7 at the corresponding position.

[0084] The lifting device 10 is radially movably arranged on the lifting frame 1; and the surrounding ring 5 is radially movably arranged on the lifting frame 1 through the bracket 3.

[0085] In the specific embodiments of the present application, the lifting device 10 can move axially along the cross beam 14 of the lifting frame 1 to realize radial movement. The bracket 3 is radially movably arranged on the stand column 15 through a slide rail. The surrounding ring 5 is welded and fixed to the end face of the bracket 3 close to the wall. Specifically, a driving motor is arranged on the cross beam 14, a driving wheel is arranged at the bottom of the lifting device 10, a guide rail is arranged on the cross beam 14, and the driving motor controls the rotation of the driving wheel to realize the control of the radial movement of the lifting device 10. In step S3, before the connection between the old formwork and the lifting device 10 is released, the lifting device 10 is moved away from the wall side by the driving motor, thereby driving the old formwork to separate from the wall concrete 13 and realizing auxiliary demolding.

[0086] The surrounding ring 5 is rotatably clamped to one end of the bracket 3 close to the wall.

[0087] The slip-form construction method includes an angle adjusting measure of the formwork.

[0088] The angle adjusting measure includes: releasing the fixing between the lifting device 10 corresponding to the formwork to be adjusted in angle and the lifting frame 1, releasing the fixing between the bracket 3 of the surrounding ring 5 corresponding to the formwork to be adjusted in angle and the lifting frame 1, moving the lifting device 10 and the bracket 3 radially until the formwork to be adjusted in angle presents the design angle of the wall, and restoring the fixing between the lifting device 10 and the lifting frame 1 and the fixing between the bracket 3 and the lifting frame 1.

[0089] When the angle of one side of the wall changes, the angle adjusting measure of the formwork on the corresponding side is performed.

[0090] In the specific implementation of the present application, one end of the bracket 3 close to the wall of the warehouse is processed into a circular arc structure, one end of the surrounding ring 5 close to the wall of the warehouse is processed into a circular groove structure, the bracket 3 close to the wall of the warehouse is clamped in the circular groove structure of the surrounding ring 5 and can rotate relatively in the vertical plane, and the surrounding ring 5 is detachably fixedly connected with the formwork through high-strength bolts arranged on the upper and lower sides of the bracket 3. Taking the example of the outer side of the wall of the warehouse being inclined to the inner side, as shown in FIG. 8, the angle adjusting measures specifically include: releasing the fixing between the lifting device 10 corresponding to the outer formwork 7 (i.e., the outer side lifting device 10) and the lifting frame 1, releasing the fixing between the bracket 3 of the surrounding ring 5 corresponding to the outer formwork 7 (i.e., the outer side bracket 3) and the lifting frame 1, controlling the outer side lifting device 10 to move inward along the cross beam 14 by the driving motor, controlling the outer side bracket 3 corresponding to the surrounding ring 5 to move inward, until the outer formwork 7 as a whole presents a designed inclination angle, and restoring the fixing between the outer side lifting device 10 and the lifting frame 1 and the fixing between the outer side bracket 3 corresponding to the surrounding ring 5 and the lifting frame 1. Figure 3

[0091] The slip-form construction method includes distance adjusting measures between the inner formwork 6 and the outer formwork 7;

[0092] The distance adjusting measures include: releasing the fixing between the lifting device 10 corresponding to the formwork at the position to be adjusted in distance and the lifting frame 1, releasing the fixing between the bracket 3 of the surrounding ring 5 corresponding to the formwork at the position to be adjusted in distance and the lifting frame 1, moving the lifting device 10 and the bracket 3 radially until the distance between the inner formwork 6 and the outer formwork 7 at the position to be adjusted in distance presents a designed thickness of the wall of the warehouse, and restoring the fixing between the lifting device 10 and the lifting frame 1 and the fixing between the bracket 3 and the lifting frame 1.

[0093] When the thickness of the wall of the warehouse changes, the distance adjusting measures between the inner formwork 6 and the outer formwork 7 are performed;

[0094] In the specific implementation of the present application, taking the example of the outer side of the wall of the warehouse moving radially to the inner side, as shown in FIG. 9, the distance adjusting measures specifically include: releasing the fixing between the lifting device 10 corresponding to the outer formwork 7 (i.e., the outer side lifting device 10) and the lifting frame 1, releasing the fixing between the two brackets 3 of the surrounding ring 5 corresponding to the outer formwork 7 (i.e., the outer side bracket 3) and the lifting frame 1, controlling the outer side lifting device 10 to move inward along the cross beam 14 by the driving motor, controlling the two outer side brackets 3 to move inward synchronously, until the distance between the outer formwork 7 and the inner formwork 6 presents a designed thickness of the wall of the warehouse, and restoring the fixing between the outer side lifting device 10 and the lifting frame 1 and the fixing between the two outer side brackets 3 and the lifting frame 1. Figure 4

[0095] When the thickness of the new formwork changes, step S3 includes:

[0096] Step S31: releasing the connection between the old formwork and the lifting device 10;

[0097] ​​Step S32: release the fixing of the old template corresponding lifting device 10 and the lifting frame 1, release the fixing of the old template corresponding bracket 3 and the lifting frame 1, move the lifting device 10 and the bracket 3 radially until the new template can enter the lifting frame 1.

[0098] In the specific implementation of the present application, taking the increase of the thickness of the new outer formwork 7 as an example,

[0099] Step S32 includes: releasing the fixing of the old outer formwork 7 corresponding lifting device 10 (i.e. outer lifting device 10) and the lifting frame 1, releasing the fixing of the old outer formwork 7 corresponding two brackets 3 (i.e. outer bracket 3) and the lifting frame 1, driving the outer lifting device 10 to move outward along the cross beam 14, and controlling the two outer brackets 3 to move outward synchronously, until the new outer formwork 7 is hoisted below the cross beam 14 and can be lifted into the space between the corresponding bracket 5 and the wall.

[0100] The slip form construction method includes a deviation correction measure;

[0101] The deviation correction measure includes using the twist and pull method for twist correction.

[0102] In the specific implementation of the present application, a plurality of hand-operated hoists are arranged uniformly along the outer periphery of the wall, and the lifting frame 1 is pulled in the opposite direction of the twist direction, so as to realize reverse twist correction during the slip-up construction.

[0103] The slip form construction method includes a deviation correction measure;

[0104] The deviation correction measure includes using the platform tilting method for vertical correction.

[0105] In the specific implementation of the present application, when it is found that the verticality deviation exceeds 10 mm, the jacks 9 on the deviation side are appropriately increased, so as to make the platform tilt (not more than 1%) and then slip up.

[0106] During the slip-up process, because the support rod 8 passes through the door and window hole or the ring beam, the empty slip is easily caused by the too large empty length of the support rod 8, and the support rod 8 is easily bent due to instability, so the following reinforcement measures must be taken.

[0107] The slip form construction method includes a reinforcement measure of the support rod 8;

[0108] The reinforcement measure includes implanting two additional rods parallel to the support rod 8 in the wall concrete 13, the two additional rods and the support rod 8 are triangularly distributed, a horizontal short rod is used for reinforcing the additional rod and the support rod 8, and the horizontal short rod, the support rod 8 and the additional rod are triangular lattice columns as a whole.

[0109] The reinforcement measure is executed before the empty slip construction.

[0110] In the specific implementation of the present application, before sliding up to the bottom of the ring beam, a set of additional bars (2) are implanted in the warehouse wall concrete 13, which are steel pipes or 25 threaded steels, and are implanted in the warehouse wall concrete 13 to a depth of 0.2 m. The additional bars and the support bars 8 form an equilateral triangle, and the additional bars and the support bars 8 are welded with short steel bars to form a triangular lattice column. The first sliding up is 1.2 m high, at this time the support bars 8 have just been reinforced and have good rigidity, generally no special inspection is carried out, only the elevation requirement, normal operation of the mechanism is required; the second sliding up is 0.10 m high; from this time of sliding up, the support bars 8 need to be connected with horizontal steel bars, so that all the triangular lattice column structures form a unified whole, among them, the horizontal steel bar connection interval is 800 mm, and the steel bar diameter is 18 mm or more.

[0111] The slip-form construction method comprises a radial retaining measure of the warehouse wall;

[0112] The radial retaining measure comprises a center disc 11 arranged at the center of the warehouse wall, and a plurality of pull rods 12 respectively connecting the center disc 11 and a plurality of lifting frames 1 distributed in the circumference; one end of the pull rod 12 is welded and fixed with the center disc 11, and the other end is connected with the corresponding lifting frame 1 through a basket bolt;

[0113] Before the sliding up construction, all the plurality of pull rods 12 are first pulled tight, then a level is placed on the cross beam 14 of the lifting frame 1, the basket bolt is adjusted until the cross beams 14 of the plurality of lifting frames 1 are all horizontal.

[0114] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for constructing a silo wall slip form, characterized by, The lifting frame is provided with lifting devices for lifting the formwork of the wall; the formwork of the wall is detachably hoisted below the lifting frame by the lifting devices; and the side of the formwork away from the wall is detachably connected with the enclosure; The slip-form construction method comprises a replacement measure for the formwork; The replacement measure comprises: Step S1: disconnecting the old formwork from the enclosure at the corresponding position; Step S2: carrying out the slip-form construction while starting the lifting devices to rotate reversely to keep the old formwork in place until the old formwork is separated from the lifting frame; Step S3: disconnecting the old formwork from the lifting devices and replacing it with a new formwork; Step S4: starting the lifting devices to rotate forward until the new formwork is reset and the new formwork is reconnected with the enclosure at the corresponding position. The lifting devices are provided in pairs, and the formwork comprises inner formwork and outer formwork; The two lifting devices are provided in one-to-one correspondence with the inner formwork and the outer formwork. An upper limit of the number of times of repeated use of the formwork is set, and the replacement measure for the formwork is executed when the number of times of repeated use of the formwork reaches the upper limit value, or the replacement measure for the formwork is executed when scratches appear on the surface of the concrete after the concrete is discharged from the mold. The lifting devices are winches provided above the cross beams of the corresponding lifting frames and connected to the hanging rings at the top of the formwork through steel wires. In step S3, before disconnecting the old formwork from the lifting devices, the lifting devices are moved away from the wall by driving the motor to control the lifting devices, thereby driving the old formwork to separate from the concrete of the wall and achieving auxiliary demolding.

2. A method of constructing a silo wall slipform according to claim 1 wherein, The lifting devices are radially movably provided on the lifting frame; and the enclosure is radially movably provided on the lifting frame through the bracket.

3. A method of constructing a silo wall slipform according to claim 2 wherein, The enclosure is rotatably clamped at one end of the bracket close to the wall. The slip-form construction method comprises an angle adjustment measure for the formwork. The angle adjustment measure comprises: disconnecting the fixing of the lifting devices corresponding to the formwork to be adjusted in angle from the lifting frame, disconnecting the fixing of the bracket of the enclosure corresponding to the formwork to be adjusted in angle from the lifting frame, moving the lifting devices and the bracket radially until the formwork to be adjusted in angle is at the design angle of the wall, and restoring the fixing between the lifting devices and the lifting frame and the fixing between the bracket and the lifting frame.

4. A method of constructing a silo wall slipform according to claim 2 wherein, The slip-form construction method comprises a distance adjustment measure between the inner formwork and the outer formwork. The distance adjustment measure comprises: disconnecting the fixing of the lifting devices corresponding to the formwork at the position to be adjusted in distance from the lifting frame, disconnecting the fixing of the bracket of the enclosure corresponding to the formwork at the position to be adjusted in distance from the lifting frame, moving the lifting devices and the bracket radially until the distance between the inner formwork and the outer formwork at the position to be adjusted in distance is at the design thickness of the wall, and restoring the fixing between the lifting devices and the lifting frame and the fixing between the bracket and the lifting frame.

5. A method of constructing a silo wall slipform according to claim 2 wherein, When the thickness of the new formwork changes, step S3 comprises: Step S31: disconnecting the old formwork from the lifting devices; Step S32: disconnecting the fixing of the lifting devices corresponding to the old formwork from the lifting frame, disconnecting the fixing of the bracket of the enclosure corresponding to the old formwork from the lifting frame, moving the lifting devices and the bracket radially until the new formwork can enter the lifting frame.

6. A method of constructing a silo wall slipform according to claim 1 wherein, The slip-form construction method comprises a deviation correction measure. The deviation correction measure comprises torsional correction by using the twist and pull method.

7. A method of constructing a silo wall slipform according to claim 1 wherein, The slip-form construction method comprises a deviation correction measure. The deviation rectification measures include vertical deviation rectification by adopting platform tilting method.

8. A method of constructing a silo wall slipform according to claim 1 wherein, The sliding form construction method includes reinforcement measures of support rods. The reinforcement measures include implanting two additional rods parallel to the support rods in the concrete of the wall, the two additional rods and the support rods are in triangular distribution, horizontal short rods are used to reinforce the additional rods and the support rods, the horizontal short rods, the support rods and the additional rods are in overall triangular lattice column shape. The reinforcement measures are executed before the empty sliding construction.

9. A method of constructing a silo wall slipform according to claim 1 wherein, The sliding form construction method includes radial retaining measures of the wall. The radial retaining measures include setting a center disc at the center of the wall, and using multiple pull rods to respectively connect the center disc and multiple lifting frames distributed in the circumferential direction; one end of the pull rod is welded and fixed with the center disc, and the other end is connected with the corresponding lifting frame through a basket bolt; Before the sliding construction, the multiple pull rods are all pulled tight, then a level is placed on the cross beam of the lifting frame, the basket bolt is adjusted until the cross beams of the multiple lifting frames are all horizontal.

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