Construction method based on heavy cover plate building machine

Abstract

The invention relates to a construction method based on a heavy cover plate building machine, which specifically comprises the following steps: S1, mounting the building machine, mounting a structural column pre-embedded bracket along a poured structural column, and mounting a latticed column at an interval of the structural column; s2, loading and unloading blocks are mounted on the structural column pre-embedded brackets and the latticed columns; s3, parallel rails are laid on the unloading blocks; s4, a plurality of corresponding guide wheel moving assemblies are arranged on the track at intervals; s5, a truss girder is installed on the guide wheel moving assembly; s6, a U-shaped frame is installed between the truss beams; s7, a hydraulic jack and a slidable door type supporting frame are installed on the U-shaped frame; s8, a detachable formwork assembly is installed; and S9, beam slab concrete is poured. The construction efficiency of the concrete floor cover plate can be improved, and during slip form construction, the formworks are stacked in the empty space after being disassembled and can move to the next construction section in the direction perpendicular to the concrete beam.

Description

Technical Field

[0001] The present invention relates to the field of concrete floor slab construction, and particularly to a construction method based on a heavy floor slab construction machine. Background Art

[0002] For example, Chinese Patent Application Publication No. CN 106032705 A discloses an integral casting and forming construction method for a reinforced concrete floor slab. This integral casting and forming construction method for a reinforced concrete floor slab separately assembles a self-balanced overall structure forming a reinforced concrete beam and a reinforced concrete floor slab, hoists the separately assembled self-balanced structure, and pours concrete within the self-balanced formwork structure of the assembled floor slab to form an integrally cast reinforced concrete floor slab structure; its formwork support method generally relies on scaffolding for support; when the concrete floor slab has a larger specification, more scaffolding materials are consumed and the construction period is longer, which is not conducive to improving efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a construction method based on a heavy floor slab construction machine, which is conducive to improving the construction efficiency of concrete floor slabs. During slip form construction, after the formwork is removed, it can be stacked in the overhead floor and can move perpendicular to the concrete beam to the next construction section. Compared with a slip form construction scheme that can only move along the concrete beam, its utilization rate is higher and the usage scenario is more flexible, and it is applicable to the construction of heavier floor slabs with larger specifications.

[0004] To achieve the above purpose, a construction method based on a heavy floor slab construction machine is adopted, which specifically includes the following steps: S1: Install the construction machine, install embedded corbels on the structure columns along the already cast structure columns, and install lattice columns at intervals with respect to the structure columns; S2: Install drop blocks on the embedded corbels of the structure columns and the lattice columns; S3: Lay parallel tracks on the drop blocks; S4: Set a plurality of corresponding guide wheel moving components at intervals on the tracks; S5: Install truss beams on the guide wheel moving components, and the truss beams are installed at intervals, and an overhead floor is formed at the intervals; S6: Install U-shaped frames between the truss beams, and the top surface installation position of the U-shaped frames should be lower than the top surface of the truss beams to reserve space for stacking formwork; S7: Install hydraulic jacks and slidable portal supports on the U-shaped frames, and the portal supports are fixed and propped up by the hydraulic jacks; S8: Install a detachable formwork component, lay a beam bottom formwork on the truss beam; install a beam side formwork on the side of the beam bottom formwork, and install an internal corner formwork at the upper end of the beam side formwork; lay a slab bottom formwork on the portal support, and the slab bottom formwork is fixedly limited with the internal corner formwork; S9: Pour the concrete for the beam and slab.

[0005] As a further improvement of the present invention, it further includes: S10: When removing the formwork, first release the fixed limit between the bottom formwork of the slab and the corner formwork; S11: Start the hydraulic jack, remove the formwork of the bottom formwork of the slab, and lower the bottom formwork of the slab to the lower limit position, and convert it into a U-shaped frame to support the portal support frame; S12: Release the fixed limit between the corner formwork and the side formwork of the beam. First, remove the corner formwork and stack it on the bottom formwork of the slab, and then remove the side formwork of the beam and stack it on the bottom formwork of the slab; S13: Adjust the drop block to lower the bottom formwork of the slab to complete the removal of the bottom formwork of the slab; S14: All truss beams are moved on the track through the guide wheel moving assembly and pass below the elevation of the beam bottom, and are moved to the next construction section; S15: Adjust the drop block to restore the bottom formwork of the slab to the elevation position of the beam bottom and carry out the construction of this construction section.

[0006] By adopting such a method, the bottom formwork of the slab and the side formwork of the beam can be stacked in the overhead floor; the hydraulic jack can drive the portal support frame to move up and down, and the portal support frame is used to fix the bottom formwork of the slab; the bottom formwork of the slab is spliced by the corner formwork and the side formwork of the beam. After releasing the limit between the bottom formwork of the slab and the corner formwork, the bottom formwork of the slab can be first demolded by the hydraulic jack; after the side formwork of the beam and the corner formwork are removed, they can be stacked on the bottom formwork of the slab; the beam bottom formwork is fixed on the truss beam; after placing the bottom formwork of the slab, the side formwork of the beam and the corner formwork, the drop block is lowered, so that the beam bottom formwork can be demolded, and the height of the overall formwork after demolding is still not higher than the elevation of the beam bottom, and it can be integrally slid along the width direction of the beam and moved to the next construction section.

[0007] The guide wheel moving assembly facilitates the overall movement along the track. The drop block is beneficial to the overall lowering or lifting, which is beneficial to the demolding of the beam bottom formwork, prevents the demolded formwork from hitting the beam bottom during the overall movement, is beneficial to controlling the overall below the elevation of the beam bottom, and after moving to the next construction section, adjust the drop block to make the beam bottom formwork move back to the elevation of the beam bottom again.

[0008] As a further improvement of the present invention, the U-shaped frame is located in the overhead floor, and it includes two side vertical pipes and a bottom horizontal pipe. The upper end of the vertical pipe is lower than the top surface of the truss beam to reserve a storage space, and the vertical pipe is fixed on the side surface of the truss beam; A plurality of portal support frames spaced front and back are connected into a whole through the longitudinal beams on both sides of the top. The two side columns of the portal support frame are slidably installed in the two side vertical pipes of the U-shaped frame, and the top cross beam is between the two longitudinal beams; The hydraulic jack is installed on the bottom horizontal pipe, and its upper end piston head is fixed on the bottom surface of the top cross beam; Longitudinal supporting beams are fixed on the inner sides of the two side vertical pipes of the U-shaped frame, and spaced supporting plates are installed on the supporting beams; the hydraulic jack extends between the supporting plates; The upright column and the vertical pipe are provided with bolt holes at corresponding positions and are fitted with detachable limit bolts.

[0009] With such a structure, after the limit between the portal support frame and the U-shaped frame is released, the upright column can move in the vertical pipe. The supporting plate is used to place the bottom formwork of the slab. After the hydraulic jack retracts, the bottom formwork of the slab can be received on the supporting plate. When the portal support frame supports the bottom formwork of the slab, the limit bolt can be inserted through the bolt hole to realize the limit between the portal support frame and the U-shaped frame; when demoulding, the limit can be released, which is beneficial to the demoulding of the hydraulic jack.

[0010] As a further improvement of the present invention, a ring of grooves is formed on the circumferential surface of the piston head. The cross section of the groove is C-shaped, and a movable head is slidably assembled in the groove; a cross bar is fixedly connected to the outside of the movable head, and a cross plate is fixedly connected to the outer end of the cross bar; the cross plate slides into the space between two support plates; the two support plates are fixed to the bottom surface of the cross beam of the portal support frame, and long circular holes are formed in the support plates, and sliding shafts are arranged on both sides of the cross plate and extend into the long circular holes.

[0011] With such a structure, the movable head can rotate along the groove to adjust the support orientation to ensure parallelism with the cross beam; the sliding shaft can move along the long circular hole to adjust the telescopic length to adapt to the length of the cross beam, preventing the stress points from being single or too close, which is likely to break the cross beam.

[0012] As a further improvement of the present invention, triangular stiffening plates are arranged between the longitudinal beam and the upright column, and between the cross beam and the upright column. A horizontal pipe is fixed to the side surface of the vertical pipe so that the upright column can slide downward and extend out of the vertical pipe. A ladder is further installed at the upper end of the lattice column.

[0013] With such a structure, the triangular stiffening plates can strengthen the joints of the portal support frame. The horizontal pipe is fixed to the side surface of the vertical pipe, which does not affect the downward penetration of the upright column through the vertical pipe and is beneficial to increasing the telescopic distance. The ladder is beneficial for construction workers to use.

[0014] As a further improvement of the present invention, the detachable formwork assembly further includes: first ribs, which are arranged in a grid form on the back surfaces of the bottom formwork of the beam, the side formwork of the beam and the bottom formwork of the slab. Bull-noses of the bottom formwork of the beam, which are installed at intervals on the side ribs of the bottom formwork of the beam and are padded under the bottom ribs of the side formwork of the beam. Hinge joints of the bull-noses of the bottom formwork of the beam, which are fixed to the outer ends of the bull-noses of the bottom formwork of the beam. The hinge joints of the bull-noses of the bottom formwork of the beam include a first fixed joint located in the middle position and first rotating joints located on both sides. The first fixed joint and the second rotating joint share a pin shaft. Among them, the first fixed joint is fixed to the outer end of the bull-nose of the bottom formwork of the beam. Rib plates, which are fixed between the first rotating joint and the bottom ribs of the side formwork of the beam.

[0015] With such a structure, the side formwork of the beam can be leveled by the bracket of the bottom formwork of the beam; the side formwork of the beam can also rotate with the bracket of the bottom formwork of the beam through the hinge joint of the bracket of the bottom formwork of the beam. When the bottom formwork of the slab is disassembled and placed in the overhead floor, the side formwork 142 of the beam can be stacked on the bottom formwork of the slab.

[0016] As a further improvement of the present invention, a corner form is installed on the upper side of the side formwork of the beam, and the corner form includes: The side angle formwork of the beam; The bottom angle formwork of the slab, which is perpendicular to the side angle formwork of the beam, and its side is flush with the inner side of the top of the side angle formwork of the beam, so as to form a right angle with the side angle formwork of the beam; The hinge groove, which is opened at the corner formed by the side angle formwork of the beam and the bottom angle formwork of the slab; The corner form hinge, which is buried in the hinge groove, and includes a second rotating joint and a second fixed joint sharing a common pin shaft. The second fixed joint is fixedly connected to the side angle formwork of the beam, and the second rotating joint is fixedly connected to the bottom angle formwork of the slab.

[0017] Second ribs are fixedly connected to the side angle formwork of the beam and the bottom angle formwork of the slab, and the second ribs are arranged at the ends of the side angle formwork of the beam and the bottom angle formwork of the slab; a notch is opened at the intersection of the second ribs, and the notch communicates with the hinge groove to allow the corner form hinge to rotate; Lugs are arranged at the ends of the second ribs, the lugs are pin-connected to the supports, screws are installed on the supports, and two screws are connected by a straight thread sleeve to form a diagonal brace; The support has a U-shaped groove, and the U-shaped groove is adapted to the screw; A through-length steel back rib is arranged between the second ribs at both ends, and lugs for connecting the diagonal braces are arranged at intervals along the steel back rib; Crossed third ribs are arranged between the steel back rib of the side angle formwork of the beam and the steel back rib of the bottom angle formwork of the slab, and a notch is also opened at the intersection of the third ribs.

[0018] Assembly holes are opened on the first ribs, the second ribs and the steel back ribs.

[0019] With such a structure, the side angle formwork of the beam is installed on the upper side of the side formwork of the beam, and the bottom angle formwork of the slab is installed on both sides of the bottom formwork of the slab, so as to complete the installation of the corner form. During demoulding, the limit between the bottom angle formwork of the slab and the bottom formwork of the slab is released, the bottom angle formwork of the slab and the bottom formwork of the slab can be separated, the bottom formwork of the slab can then move downwards to make space, then the corner form is moved horizontally and then separated from the side formwork of the beam. When the concrete reaches the designed strength, finally the bottom formwork of the beam is removed. The above solution helps to demould out of step and properly arrange the demoulding priority. When slip form construction is adopted, the corner form can also be longitudinally removed, and the subsequent bottom formwork of the slab can also move up and down, which helps to stack and store the side formwork of the beam and the bottom formwork of the slab, and then synchronously slide, which is beneficial to saving the space for storing the formwork and making full use of the overhead floor of the slip system.

[0020] The second rib helps to strengthen the end of the internal angle mold; after the notch is opened, it prevents obstruction of rotation and is also conducive to loosening the internal angle mold; after the internal angle mold is disassembled, it can be rotated and retracted to lower the overall height, which is conducive to storage and passing below the bottom elevation of the beam.

[0021] The screw and the straight thread sleeve facilitate the formation of diagonal braces; U-shaped groove is convenient for assembly and welding; The steel back rib is helpful to reinforce the internal angle mold, and the lugs are arranged on the steel back rib, which helps to form diagonal braces on the steel back rib and strengthen the steel back rib.

[0022] The third rib is helpful to vertically support the steel back rib to prevent the steel back rib from bending along the surface of the formwork.

[0023] Bolt and nut fasteners are used to penetrate assembly holes to achieve the splicing of the internal angle formwork with the beam side formwork and the plate bottom formwork, and the internal angle formwork itself is extended by splicing.

[0024] As a further improvement of the present invention, the beam side formwork includes an upper side formwork and a lower side formwork and a beam side formwork hinge located therebetween, the beam side formwork hinge includes multiple hinge sections, the beam side formwork hinge includes a first hinge support fixed to the bottom surface of the first rib at the lower part of the upper side formwork and a second hinge support fixed to the top surface of the first rib at the upper part of the lower side formwork; at least two concave hinge sections are arranged between the first hinge support and the second hinge support, the uppermost hinge section is hinged to the first hinge support; the lowermost hinge section is hinged to the second hinge support.

[0025] With such a structure, the upper side mold and the lower side mold are rotated and folded through the beam side mold hinge. After the beam side mold is removed, the upper side mold is rotated and folded onto the lower side mold in a form of the inner side of the mold being attached to each other; further saving storage space and reducing the required width for storage; at least two sections of concave hinge joints are formed to facilitate the expansion and extension of the concave multi-section hinge joints during the subsequent rotation process, which is convenient for folding in the upper side mold and avoiding the limitation of the hinge joint length; the concave multi-section hinge joints can store more length for extension; As a further improvement of the present invention, the beam side form hinges are arranged in pairs as a group, and the first hinge support and the second hinge support have different lengths. On the same first rib, the first hinge support of one beam side form hinge is arranged adjacent to the second hinge support of another beam side form hinge, and the two sections form concave hinge sections that are staggered, with more than half of one concave section being in the upper side form; more than half of the other concave section being in the lower side form, and a common pin shaft is arranged to pass through the two concave intersection sections.

[0026] With such a structure, the common pin shaft makes a circular motion around the hinge point of the longer hinge support, so that the unfolding of the concave multi-section hinge has a stable circular trajectory. Due to the existence of the common pin shaft, when the multi-section hinge unfolds, the common pin shaft also makes a circular motion at the same time, causing a stable rotation between the upper side mold and the lower side mold.

[0027] The hinge section of the common pin shaft is in an obtuse V shape.

[0028] With such a structure, after the multi-section hinge is fully unfolded, when the hinge section in an obtuse V shape encounters a right angle of the upper side mold or the lower side mold, it can cross obliquely, thus avoiding rigid collision.

[0029] As a further improvement of the present invention, it further includes a rotatable safety guardrail, which includes: Edge corbels, which are installed at intervals on the outer side of the truss beam at the edge position; A flat plate, which is laid on the edge corbels; A railing, the lower side of which is hinged to the outer end of the edge corbel; A railing hinge support, which is fixed on the outer side of the vertical rod of the railing; A connecting rod, the upper end of which is hinged to the railing hinge support; A railing hydraulic jack, which is horizontally fixed on the side of the truss beam and is located below the edge corbel; A piston end hinge support, which is fixed on the piston end of the hydraulic jack and is hinged to the lower end of the connecting rod; The railing and the edge corbel are hinged through a railing hinge section, and the railing hinge section includes a railing rotating section and a corbel fixing section sharing a common pin shaft. The railing rotating section is fixed to the lower side of the railing, and the corbel fixing section is fixed to the outer end of the edge corbel; The connecting rod includes a first body and a second body. A first spring is arranged between the first body and the second body. One end of the first spring is fixed to the first body, and the other end is fixed to the second body; Hoop fasteners are arranged on the first body and the second body; a limiting rod is slidably penetrated through the corresponding positions of the two hoop fasteners.

[0030] Limiting nuts are arranged at both ends of the limiting rod, and a second spring is arranged between the limiting nut and the hoop fastener; A jack corbel is installed under the railing hydraulic jack, and a reaction frame is arranged on the jack corbel, and the reaction frame fixes the railing hydraulic jack.

[0031] With such a structure, by retracting the piston rod of the railing hydraulic jack, the connecting rod is driven by the railing hydraulic jack to rotate downward, thereby driving the railing to rotate, so that the railing can be laid flat.

[0032] The railing hinge section allows rotation between the railing and the edge corbel.

[0033] The split connecting rod can prevent excessive pulling force applied by the railing hydraulic jack, which is likely to damage the connecting rod. The first spring provides a buffering effect and also enables the connecting rod to have a telescopic function to adapt to the change in the length of the connecting rod during the rotation process.

[0034] The hoop can prevent the connecting rod from bending; The second spring enables the limit rod to have a reset function; The reaction frame is used to strengthen the fixation of the hydraulic jack; After the railing is laid flat, when the slip form operation is subsequently carried out, the railing can pass under the concrete beam.

[0035] As a further improvement of the present invention, an angle steel is hinged to the end side of the railing. The angle steel can be flipped between the railing and the edge corbel, and one of its limbs is opposite to the end face of the edge corbel, and a cushion block is arranged between one limb of the angle steel and the end face of the edge corbel.

[0036] A triangular reinforcing plate is arranged between the two limbs of the angle steel.

[0037] Adopting such a structure can prevent the spring from pushing the railing backward, thereby ensuring that the railing is in a stable state.

[0038] The triangular reinforcing plate can strengthen the angle steel.

[0039] The present invention is beneficial to improving the construction efficiency of the concrete floor slab. During slip form construction, after the formwork is removed, it can be stacked in the overhead floor and can move perpendicular to the concrete beam to the next construction section. Compared with the slip form construction scheme that can only move along the concrete beam, its utilization rate is higher, the use scenario is more flexible, and it is suitable for the construction of heavier covers with larger specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic view of the partial structure of the embodiment.

[0041] Figure 2 It is a schematic view of the structure of the piston head.

[0042] Figure 3 It is a schematic view of the overall structure of the embodiment.

[0043] Figure 4 It is a front view of the embodiment.

[0044] Figure 5 It is a side view of the embodiment.

[0045] Figure 6 It is a top view of the embodiment.

[0046] Figure 7 It is a schematic view of the structure of the guide wheel moving assembly.

[0047] Figure 8 Schematic diagram of the installation structure of the beam formwork and the corner formwork.

[0048] Figure 9 Enlarged schematic diagram of the bracket hinge joint at the bottom of the beam formwork.

[0049] Figure 10 Schematic diagram of the structure of the internal corner formwork.

[0050] Figure 11 Schematic diagram of the structure of the hinge groove.

[0051] Figure 12 Schematic diagram of the structure of the hinge of the side formwork of the beam.

[0052] Figure 13 Schematic diagram of the installation position of the hinge of the side formwork of the beam.

[0053] Figure 14 Schematic diagram of the structure of the rotatable safety railing.

[0054] Figure 15 Schematic diagram of the articulated structure of the railing and the edge bracket.

[0055] Figure 16 Schematic diagram of the structure after the railing is laid flat.

[0056] Figure 17 Schematic diagram of the structure of the split connecting rod.

[0057] Figure 18 Schematic diagram of the rotating state of the angle steel.

[0058] Figure 19 Schematic diagram of the structure of installing the drop block on the embedded bracket of the structural column.

[0059] Reference numerals: 1, truss beam; 2, overhead floor; 3, U-shaped frame; 301, riser pipe; 302, horizontal pipe; 303, supporting beam; 304, supporting plate; 4, portal support frame; 401, longitudinal beam; 402, column; 403, cross beam; 404, triangular stiffening plate; 5, hydraulic jack; 501, piston head; 5011, groove; 5012, flexible head; 5013, cross bar; 5014, cross plate; 5015, support plate; 5016, oblong hole; 5017, sliding shaft; 6, bolt hole; 7, limit bolt; 8, guide wheel moving assembly; 9, track; 10, drop block; 11, lattice column; 12, ladder frame; 13, embedded bracket of the structural column; 14, detachable formwork assembly; 141, bottom formwork of the beam; 142, side formwork of the beam; 1421, upper side formwork; 1422, lower side formwork; 1423. Side form hinge of beam; 14231. Hinge joint; 14232. First hinge support; 14233. Second hinge support; 14234. Common pin shaft; 143. Bottom form of slab; 144. Internal corner form; 1441. Side corner form of beam; 1442. Bottom corner form of slab; 1443. Hinge groove; 1444. Internal corner form hinge; 1445. Second rotating joint; 1446. Second fixed joint; 1447. Second rib; 1448. Notch; 1449. Lug; 14410. Support; 144101. U-shaped groove; 14411. Screw rod; 14412. Straight thread sleeve; 14413. Steel back brace; 14414. Third rib; 145. First rib; 146. Bracket of bottom form of beam; 147. Hinge joint of bracket of bottom form of beam; 148. First fixed joint; 149. First rotating joint; 1410. Rib plate; 1411. Assembly hole; 15. Rotatable safety guardrail; 151. Edge bracket; 152. Flat plate; 153. Rail; 154. Rail hinge support; 155. Connecting rod; 1551. First body; 1552. Second body; 1553. First spring; 1554. Hoop; 1555. Limit rod; 1556. Limit nut; 1557. Second spring; 156. Rail hydraulic jack; 157. Piston end hinge support; 158. Rail hinge joint; 1581. Rail rotating joint; 1582. Bracket fixed joint; 159. Jack bracket; 1510. Reaction frame; 1511. Angle steel; 1512. Cushion block; 1513. Triangular reinforcement plate. Detailed implementation manners

[0060] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0061] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; in addition, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] Embodiment 1 As Figures 1 - 19 shown, a construction method based on a heavy cover plate construction machine specifically includes the following steps: S1: Install the construction machine, install the embedded corbel 13 of the structural column along the already cast structural column, and install the lattice column 11 at intervals with the structural column; S2: Install the drop block 10 on the embedded corbel 13 of the structural column and the lattice column 11; S3: Lay parallel tracks 9 on the drop block 10; S4: Set a plurality of corresponding guide wheel moving components 8 at intervals on the track 9; S5: Install the truss beam 1 on the guide wheel moving component 8, and the truss beams 1 are installed at intervals, and an overhead layer 2 is formed at the interval; S6: Install the U-shaped frame 3 between the truss beams 1. The installation position of the top surface of the U-shaped frame 3 should be lower than the top surface of the truss beam 1 to reserve space for stacking templates; S7: Install the hydraulic jack 5 and the slidable portal support frame 4 on the U-shaped frame 3, and the portal support frame 4 is fixed and supported by the hydraulic jack 5; S8: Install the detachable formwork component 14, lay the bottom formwork 141 of the beam on the truss beam 1; install the side formwork 142 of the beam on the side of the bottom formwork 141 of the beam, and install the inside corner formwork 144 at the upper end of the side formwork 142; lay the bottom formwork 141 of the slab on the portal support frame 4, and the bottom formwork 141 of the slab is fixedly limited with the inside corner formwork 144; S9: Pour the concrete of the beam and slab.

[0063] In this embodiment, it further includes: S10: When removing the formwork, first release the fixed limit between the bottom formwork 141 and the corner formwork 144. S11: Start the hydraulic jack 5, remove the bottom formwork 141, and lower the bottom formwork 141 to the lower limit position, converting it to the U-shaped frame 3 to support the portal support frame 4. S12: Release the fixed limit between the corner formwork 144 and the side formwork 142 of the beam. First, remove the corner formwork 144 and stack it on the bottom formwork 141, and then remove the side formwork 142 of the beam and stack it on the bottom formwork 141. S13: Adjust the drop block 10 to lower the bottom formwork 141 and complete the removal of the bottom formwork 141. S14: All the truss beams 1 are moved on the track 9 through the guide wheel moving assembly 8 and pass below the beam bottom elevation, and are moved to the next construction section. S15: Adjust the drop block 10 to restore the bottom formwork 141 to the beam bottom elevation position and carry out the construction of this construction section.

[0064] As Figure 19 shown, on the embedded corbels 13 of the two structural columns, legs can be set up to build double-rolled I-beams, and then the drop block 10 is installed on the double-rolled I-beams. The drop block uses a tie rod to pass through the wedge block, and by loosening and tightening the nuts, multiple drop blocks can be adjusted to the same elevation.

[0065] Embodiment 2 As Figures 1 - 19 shown, a heavy cover plate construction machine includes: Truss beams 1, which are arranged at intervals, and an overhead layer 2 is formed between adjacent truss beams; U-shaped frames 3, which are arranged between the truss beams 1, and the top surface thereof is lower than the top surface of the truss beams 1 to reserve a space for stacking formwork; Portal support frames 4, which are slidably installed on the U-shaped frames 3; Hydraulic jacks 5, which are installed on the U-shaped frames 3 and fixedly support the portal support frames 4 to drive the portal support frames 4 to slide up and down along the U-shaped frames 3; Guide wheel moving assemblies 8, which are installed at the bottom of both ends of the truss beams 1; Tracks 9, which are laid under the guide wheel moving assemblies 8; Drop blocks 10, which are installed on the bottom surface of the tracks 9; Lattice columns 11, which are supported on the bottom surface of the drop blocks 10 under one end of the truss beams 1; Embedded corbels 13 of structural columns, which are installed on the side surfaces of the structural columns and supported on the bottom surface of the drop blocks 10 under the other end of the truss beams 1; The detachable formwork assembly 14 includes a bottom formwork 141 of the beam installed on the truss beam 1, a side formwork 142 of the beam installed on the side of the bottom formwork 141 of the beam, a bottom formwork 143 of the slab installed on the portal support frame 4, and an internal corner formwork 144 detachably connected between the side formwork 142 of the beam and the bottom formwork 143 of the slab.

[0066] With such a structure, the bottom formwork of the slab and the side formwork of the beam can be stacked in the overhead floor 2; the hydraulic jack 5 can drive the portal support frame 4 to move up and down, and the portal support frame 4 is used to fix the bottom formwork of the slab; the bottom formwork of the slab is spliced with the side formwork of the beam through the internal corner formwork. After removing the limit between the bottom formwork of the slab and the internal corner formwork, the bottom formwork of the slab can be demoulded first by the hydraulic jack 5; after the side formwork of the beam and the internal corner formwork are removed, they can be stacked on the bottom formwork of the slab; the bottom formwork of the beam is fixed on the truss beam 1; after placing the bottom formwork of the slab, the side formwork of the beam and the internal corner formwork, the drop block 10 is lowered, so that the bottom formwork of the beam can be demoulded, and the height of the formwork after overall demoulding is still not higher than the bottom elevation of the beam, so that it can be slid integrally along the width direction of the beam and moved to the next construction section.

[0067] The guide wheel moving assembly 8 facilitates the overall movement along the track 9. The drop block 10 is beneficial to the overall lowering or lifting, which is beneficial to the demoulding of the bottom formwork of the beam, prevents the demoulded formwork from hitting the bottom of the beam during the overall movement, is beneficial to controlling the overall below the bottom elevation of the beam. After moving to the next construction section, the drop block 10 is adjusted so that the bottom formwork of the beam moves back to the bottom elevation of the beam.

[0068] In this embodiment, the U-shaped frame 3 is located in the overhead floor 2, and it includes two side vertical pipes 301 and a bottom horizontal pipe 302. The upper ends of the vertical pipes 301 are lower than the top surface of the truss beam 1 to reserve a storage space, and the vertical pipes 301 are fixed on the side of the truss beam 1; A plurality of portal support frames 4 spaced front and back are connected into a whole through the longitudinal beams 401 on both sides of the top. The two side columns 402 of the portal support frame 4 are slidably installed in the two side vertical pipes 301 of the U-shaped frame 3, and between the two longitudinal beams 401 is the top cross beam 403; The hydraulic jack 5 is installed on the bottom horizontal pipe 302, and its upper piston head 501 is fixed on the bottom surface of the top cross beam 403; Longitudinal supporting beams 303 are fixed on the inner sides of the two side vertical pipes 301 of the U-shaped frame 3, and spaced supporting plates 304 are installed on the supporting beams 303; the hydraulic jack 5 extends between the supporting plates 304; The columns 402 and the vertical pipes 301 are provided with bolt holes 6 at corresponding positions and are fitted with detachable limit bolts 7.

[0069] With such a structure, after removing the limit between the portal support frame 4 and the U-shaped frame 3, the columns 402 can move in the vertical pipes 301; The supporting plates 304 are used to place the bottom formwork of the slab. After the hydraulic jack 5 retracts, the bottom formwork of the slab can be received on the supporting plates 304; When the portal support frame 4 supports the bottom formwork of the slab, the limit bolt 7 can be inserted through the bolt hole 6 to achieve the limit between the portal support frame 4 and the U-shaped frame 3; when demoulding, the limit can be released, which is beneficial to the demoulding by the hydraulic jack 5.

[0070] In this embodiment, a groove 5011 is formed in the circumferential surface of the piston head 501. The cross-section of the groove 5011 is C-shaped, and a movable head 5012 is slidably assembled in the groove 5011; a cross bar 5013 is fixedly connected to the outside of the movable head 5012, and a cross plate 5014 is fixedly connected to the outer end of the cross bar 5013; the cross plate 5014 slidably extends between two support plates 5015; the two support plates 5015 are fixed to the bottom surface of the cross beam 403 of the portal support frame 4, and long circular holes 5016 are formed in the support plates 5015. Sliding shafts 5017 are arranged on both sides of the cross plate 5014 and extend into the long circular holes 5016.

[0071] With such a structure, the movable head 5012 can rotate along the groove 5011 to adjust the support orientation to ensure parallelism with the cross beam 403; the sliding shaft 5017 can move along the long circular hole 5016 to adjust the telescopic length to adapt to the length of the cross beam 403, preventing the stress points from being single or too close, which is likely to break the cross beam 403.

[0072] In this embodiment, triangular stiffening plates 404 are arranged between the longitudinal beam 401 and the column 402, and between the cross beam 403 and the column 402; A horizontal pipe 302 is fixed to the side surface of the vertical pipe 301 so that the column 402 can slide downward and extend out of the vertical pipe 301; A ladder 12 is further installed at the upper end of the lattice column 11.

[0073] With such a structure, the triangular stiffening plates 404 can strengthen the joints of the portal support frame 4; The horizontal pipe 302 is fixed to the side surface of the vertical pipe 301, which does not affect the downward penetration of the column 402 through the vertical pipe 301 and is beneficial to increasing the telescopic distance; The ladder 12 is beneficial for construction workers to use.

[0074] In this embodiment, the detachable formwork assembly 14 further includes: first ribs 145, which are arranged in a grid form on the back surfaces of the beam bottom formwork 141, the beam side formwork 142 and the slab bottom formwork 143; Beam bottom formwork brackets 146, which are installed at intervals on the side ribs of the beam bottom formwork 2 and are padded under the bottom ribs of the beam side formwork 142; Beam bottom formwork bracket hinge joints 147, which are fixed to the outer ends of the beam bottom formwork brackets 146. It includes a first fixed joint 148 at the middle position and first rotating joints 149 at both sides. The first fixed joint 148 and the first rotating joints 149 share a pin shaft. Among them, the first fixed joint 148 is fixed to the outer end of the beam bottom formwork bracket 146; The rib plate 1410 is fixed between the first rotating joint 149 and the bottom rib of the beam side form 142.

[0075] With such a structure, the beam side form 142 can be leveled by the beam bottom form bracket 146; the beam side form 142 can also rotate with the beam bottom form bracket hinge joint 147. When the slab bottom form is disassembled and placed in the overhead floor, the beam side form 142 can be stacked on the slab bottom form.

[0076] In this embodiment, a female corner form 144 is installed on the upper side of the beam side form 142. The female corner form 144 includes: The beam side corner form plate 1441; The slab bottom corner form plate 1442, which is perpendicular to the beam side corner form plate 1441, and its side is flush with the inner side of the top of the beam side corner form plate 1441, thus forming a right angle with the beam side corner form plate 1441; The hinge groove 1443 is opened at the female corner formed by the beam side corner form plate 1441 and the slab bottom corner form plate 1442; The female corner form hinge 1444 is buried in the hinge groove 1443. It includes a second rotating joint 1445 and a second fixed joint 1446 sharing a common pin shaft. The second fixed joint 1446 is fixedly connected to the beam side corner form plate 1441, and the second rotating joint 1445 is fixedly connected to the slab bottom corner form plate 1442.

[0077] Second ribs 1447 are fixedly connected to the beam side corner form plate 1441 and the slab bottom corner form plate 1442. The second ribs 1447 are arranged at the ends of the beam side corner form plate 1441 and the slab bottom corner form plate 1442; a notch 1448 is opened at the intersection of the second ribs 1447, and the notch 1448 communicates with the hinge groove 1443 to allow the female corner form hinge 1444 to rotate; Lugs 1449 are provided at the ends of the second ribs 1447. The lugs 1449 are pin-connected to the supports 14410, and screws 14411 are installed on the supports 14410. Two screws 14411 are connected by a straight thread sleeve 14412 to form a diagonal brace; The support 14410 has a U-shaped groove 144101, and the U-shaped groove 144101 is adapted to the screw 14411; A full-length steel back rib 14413 is arranged between the second ribs 1447 at both ends, and lugs 1449 for connecting the diagonal braces are arranged at intervals along the steel back rib 14413; A crossed third rib 14414 is arranged between the steel back rib 14413 of the beam side corner form plate 1441 and the steel back rib 14413 of the slab bottom corner form plate 1442, and a notch 1448 is also opened at the intersection of the third ribs 14414.

[0078] Assembly holes 1411 are opened on the first ribs 145, the second ribs 1447 and the steel back ribs 14413.

[0079] With such a structure, the beam side angle formwork 1441 is installed on the upper side of the beam side formwork 142, and the slab bottom angle formwork 1442 is installed on both sides of the slab bottom formwork 143, thereby completing the installation of the internal angle formwork 144. When demolding, the limit of the slab bottom angle formwork 1442 and the slab bottom formwork 143 is released, so that the slab bottom angle formwork 1442 and the slab bottom formwork 143 can be separated, and the slab bottom formwork 143 can be moved down to make room, and then the internal angle formwork 144 is moved horizontally and then separated from the beam side formwork 142. When the concrete reaches the designed strength, the beam bottom formwork 141 is finally removed. The above scheme is conducive to asynchronous demolding and proper arrangement of demolding priority. When sliding formwork is used for construction, the internal angle formwork 144 can also be longitudinally moved and removed, and the subsequent slab bottom formwork 143 can also be raised and lowered, which is conducive to stacking the beam side formwork 142 and the slab bottom formwork 143 to store the formwork, and then sliding synchronously, which is conducive to saving space for storing the formwork and making full use of the overhead layer of the sliding system.

[0080] The second rib 1447 helps to strengthen the end of the internal angle mold 144; after the notch 1448 is opened, it prevents obstruction of rotation and is also helpful to loosen the internal angle mold 144; after the internal angle mold 144 is disassembled, it can be rotated and retracted to reduce the overall height, which is conducive to storage and passing below the bottom elevation of the beam.

[0081] The screw 14411 and the straight thread sleeve 14412 facilitate forming a diagonal brace; U-shaped groove 144101 facilitates assembly and welding; The steel back rib 14413 is helpful to reinforce the internal angle mold 144, and the lug 1449 is arranged on the steel back rib 14413, which helps to form a diagonal brace on the steel back rib 14413 and strengthen the steel back rib.

[0082] The third rib 14414 is helpful to vertically support the steel back rib 14 to prevent the steel back rib 14 from bending along the template surface.

[0083] Bolt and nut fasteners are used to penetrate the assembly holes 1411 to achieve the splicing of the internal angle mold 144 with the beam side mold 142 and the plate bottom mold 143, and the internal angle mold 144 itself is extended by splicing.

[0084] In this embodiment, the side formwork 142 of the beam includes an upper side formwork 1421, a lower side formwork 1422, and a beam side formwork hinge 1423 located therebetween. The beam side formwork hinge 1423 includes multiple hinge segments 14231. The beam side formwork hinge 1423 includes a first hinge support 14232 fixed to the bottom surface of the first rib 145 at the lower part of the upper side formwork 1421 and a second hinge support 14233 fixed to the top surface of the first rib 145 at the upper part of the lower side formwork 1422. At least two hinge segments 14231 forming a concave shape are arranged between the first hinge support 14232 and the second hinge support 14233. The uppermost hinge segment 14231 is hinged to the first hinge support 14232; the lowermost hinge segment 14231 is hinged to the second hinge support 14233.

[0085] With such a structure, the upper side formwork 1421 and the lower side formwork 1422 are rotationally folded through the beam side formwork hinge 1423. After the formwork of the beam side formwork 142 is removed, the upper side formwork 1421 rotates and folds onto the lower side formwork 1422 in a form where the inner sides of the formworks are in contact; further saving storage space and reducing the required width for storage; at least two hinge segments 14231 forming a concave shape facilitate the formation of a concave multi-segment hinge segment that can expand and elongate during subsequent rotation, facilitating the inner folding of the upper side formwork 1421 and avoiding being restricted by the length of the hinge segment; the concave multi-segment hinge segment can store more lengths available for elongation; In this embodiment, the beam side formwork hinges 1423 are arranged in pairs as a group. The lengths of the first hinge support 14232 and the second hinge support 14233 are different. On the same first rib 145, the first hinge support 14232 of one beam side formwork hinge 1423 is arranged adjacent to the second hinge support 14233 of another beam side formwork hinge 1423. The two hinge segments 14231 forming a concave shape are arranged staggeredly. The part of the concave shape that exceeds half is in the upper side formwork 1421 at one place; the part of the concave shape that exceeds half is in the lower side formwork 1422 at another place. A common pin shaft 14234 is arranged to pass through the intersecting part of the two concave shapes.

[0086] With such a structure, the common pin shaft 14234 makes a circular motion with the hinge point of the longer hinge support as the center, so that the expansion of the concave multi-segment hinge segment 14231 has a stable circular trajectory. Due to the existence of the common pin shaft 14234, while the multi-segment hinge segment 14231 expands, the common pin shaft 14234 also makes a circular motion at the same time, enabling a stable rotation between the upper side formwork 1421 and the lower side formwork 1422.

[0087] The hinge segment 1031 of the common pin shaft 106 is in an obtuse V shape.

[0088] With such a structure, after the multi-section hinge joint 14231 is fully unfolded, when the hinge joint 14231 in an obtuse V shape encounters the right angle of the upper side mold 1421 or the lower side mold 1422, it can cross obliquely, thus avoiding rigid collision.

[0089] In this embodiment, it further includes a rotatable safety guardrail 15, which includes: Edge corbels 151, which are installed at intervals on the outside of the truss beam 1 at the edge position; Flat plates 152, which are laid on the edge corbels 151; Railings 153, the lower sides of which are hinged to the outer ends of the edge corbels 151; Railing hinge supports 154, which are fixed on the outside of the vertical poles of the railings 153; Link rods 155, the upper ends of which are hinged to the railing hinge supports 154; Railing hydraulic jacks 156, which are horizontally fixed on the side of the truss beam 1 and are located below the edge corbels 151; Piston end hinge supports 157, which are fixed on the piston end of the hydraulic jack and are hinged to the lower ends of the link rods 155; The railings 153 and the edge corbels 151 are hinged through railing hinge joints 158, and the railing hinge joints 158 include railing rotating joints 1581 and corbel fixing joints 1582 sharing a common pin shaft. The railing rotating joints 1581 are fixed on the lower sides of the railings 153, and the corbel fixing joints 1582 are fixed at the outer ends of the edge corbels 151; The link rods 155 include a first body 1551 and a second body 1552. A first spring 1553 is arranged between the first body 1551 and the second body 1552. One end of the first spring 1553 is fixed to the first body 1551, and the other end is fixed to the second body 1552; Hoop fasteners 1554 are arranged on the first body 1551 and the second body 1552; a limiting rod 1555 is slidably inserted through the corresponding positions of the two hoop fasteners 1554.

[0090] Limiting nuts 1556 are arranged at both ends of the limiting rod 1555, and a second spring 1557 is arranged between the limiting nuts 1556 and the hoop fasteners 1554; A jack corbel 159 is installed below the railing hydraulic jack 156, and a reaction frame 1510 is arranged on the jack corbel 159. The reaction frame 1510 fixes the railing hydraulic jack 156.

[0091] With such a structure, by retracting the piston rod of the railing hydraulic jack 156, the link rod 155 rotates downward under the drive of the railing hydraulic jack 156, thereby driving the railing 153 to rotate, so that the railing 153 can be laid flat.

[0092] The railing hinge joint 158 allows rotation between the railing 153 and the edge corbel 151.

[0093] The split connecting rod can prevent excessive pulling force on the railing hydraulic jack 156, which is likely to damage the connecting rod 155. The first spring 1553 provides a buffering effect and also enables the connecting rod 155 to have a telescopic function to adapt to the change in the length of the connecting rod 155 during the rotation process.

[0094] The hoop 1554 can prevent the connecting rod 155 from bending; The second spring 1557 enables the limit rod 1555 to have a reset function; The reaction frame 1510 strengthens the fixation of the hydraulic jack 7; After the railing is laid flat, when subsequent slip form operations are to be performed, the railing can pass under the concrete beam.

[0095] In this embodiment, the end side of the railing 153 is hinged with an angle steel 1511. The angle steel 1511 can be flipped between the railing 153 and the edge corbel 151, with one of its limbs facing the end face of the edge corbel 151, and a cushion block 1512 is arranged between one limb of the angle steel 1511 and the end face of the edge corbel 151.

[0096] A triangular reinforcing plate 1513 is arranged between the two limbs of the angle steel 1511.

[0097] Adopting such a structure can prevent the spring from pushing the railing 153 backward, thereby ensuring that the railing 153 is in a stable state.

[0098] The triangular reinforcing plate 1513 can strengthen the angle steel 10.

[0099] The present invention is beneficial to improving the construction efficiency of concrete floor slabs. During slip form construction, after the formwork is removed, it can be stacked in the overhead floor and can move perpendicular to the concrete beam to the next construction section. Compared with the slip form construction scheme that can only move along the concrete beam, it has a higher utilization rate, a more flexible usage scenario, and is suitable for the construction of heavier covers with larger specifications.

[0100] The above content is a further detailed description of the present invention in combination with specific preferred implementation manners. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those skilled in the technical field to which the present invention belongs, without departing from the concept of the present invention, several equivalent substitutions or obvious variations can be made, and as long as the performance or use is the same, they should all be regarded as falling within the protection scope of the present invention.

Claims

1. A construction method based on a heavy cover construction machine, characterized in that The specific steps include: S1: Install a construction machine, install the pre-buried corbels (13) of the structural columns along the cast structural columns, and install the lattice columns (11) at intervals between the structural columns; S2: Installing the unloading block (10) on the pre-buried corbel (13) of the structural column and the lattice column (11); S3: Laying parallel tracks (9) on the unloading block (10); S4: arranging a plurality of corresponding guide wheel moving assemblies (8) at intervals on the track (9); S5: installing a truss beam (1) on the guide wheel moving assembly (8), wherein the truss beams (1) are installed at intervals, and an overhead layer (2) is formed at the intervals; S6: Install a U-shaped frame (3) between the truss beams (1), and the top surface of the U-shaped frame (3) should be installed at a position lower than the top surface of the truss beam (1) to reserve space for stacking the formwork; S7: Install a hydraulic jack (5) and a slidable portal support frame (4) on the U-shaped frame (3), wherein the portal support frame (4) is fixedly supported by the hydraulic jack (5); S8: Install the removable formwork assembly (14), lay the beam bottom formwork (141) on the truss beam (1); install the beam side formwork (142) on the side of the beam bottom formwork (141), and install the internal angle formwork (144) on the upper end of the beam side formwork (142); lay the plate bottom formwork (141) on the portal support frame (4), and fix the plate bottom formwork (141) and the internal angle formwork (144) in position; S9: pouring beam and slab concrete.

2. The construction method based on the heavy cover plate construction machine according to claim 1 is characterized in that Also includes: S10: When removing the mold, first release the fixed limit of the plate bottom mold (141) and the inner corner mold (144); S11: starting the hydraulic jack (5), demoulding the plate bottom mold (141), lowering the plate bottom mold (141) to the lower limit position, and converting it into a U-shaped frame (3) to support the portal support frame (4); S12: releasing the fixed limit of the internal angle mold (144) and the beam side mold (142), first dismantling the internal angle mold (144) and stacking it on the plate bottom mold (141), and then dismantling the beam side mold (142) and stacking it on the plate bottom mold (141); S13: adjusting the unloading block (10) to lower the plate bottom mold (141) to complete demoulding of the plate bottom mold (141); S14: All truss beams (1) are moved on the track (9) by means of the guide wheel moving assembly (8), and pass below the beam bottom elevation to move to the next construction section; S15: Adjust the unloading block (10) to restore the slab bottom formwork (141) to the beam bottom elevation position, and then proceed with the construction of this construction section.

3. The construction method based on the heavy cover plate construction machine according to claim 2 is characterized in that: The U-shaped frame (3) is located in the overhead layer (2), and comprises vertical pipes (301) on both sides and a horizontal pipe (302) at the bottom. The upper ends of the vertical pipes (301) are lower than the top surface of the truss beam (1) to reserve storage space. The vertical pipes (301) are fixed to the side of the truss beam (1). A plurality of portal support frames (4) spaced apart from each other are connected as a whole via longitudinal beams (401) on both sides of the top; the vertical columns (402) on both sides of the portal support frame (4) are slidably mounted in the vertical pipes (301) on both sides of the U-shaped frame (3); and a top cross beam (403) is disposed between the longitudinal beams (401) on both sides; The hydraulic jack (5) is mounted on the bottom cross tube (302), and its upper end piston head (501) is fixed to the bottom surface of the top cross beam (403); A longitudinal support beam (303) is fixed on the inner side of the vertical pipes (301) on both sides of the U-shaped frame (3), and spaced support plates (304) are installed on the support beam (303); a hydraulic jack (5) extends between the support plates (304); The upright column (402) and the upright pipe (301) are provided with bolt holes (6) at corresponding positions and are adapted with detachable limit bolts (7).

4. The construction method based on the heavy cover plate construction machine according to claim 3 is characterized in that A circle of grooves (5011) are provided on the circumference of the piston head (501), the cross section of the grooves (5011) is C-shaped, and a movable head (5012) is slidably mounted in the grooves (5011); the outer side of the movable head (5012) is fixedly connected to a cross bar (5013), and the outer end of the cross bar (5013) is fixedly connected to a cross plate (5014); the cross plate (5014) slides and extends between two support plates (5015); the two support plates (5015) are fixed to the bottom surface of the cross beam (403) of the portal support frame (4), and oblong holes (5016) are provided on the support plates (5015), and sliding shafts (5017) are arranged on both sides of the cross plate (5014) and extend into the oblong holes (5016).

5. The construction method based on the heavy cover plate construction machine according to claim 3 is characterized in that A triangular stiffening plate (404) is provided between the longitudinal beam (401) and the column (402), and between the cross beam (403) and the column (402); A transverse tube (302) is fixed to the side of the vertical tube (301) so that the vertical column (402) can slide downward and extend out of the vertical tube (301); A ladder frame (12) is also installed on the upper end of the lattice column (11).

6. The construction method based on the heavy cover plate construction machine according to claim 2 is characterized in that The removable formwork assembly (14) further comprises: first ribs (145) arranged in a grid form on the back of the beam bottom formwork (141), the beam side formwork (142) and the board bottom formwork (143); The beam bottom formwork corbels (146) are installed at intervals on the side ribs of the beam bottom formwork (141) and are cushioned under the bottom ribs of the beam side formwork (142); A beam bottom mold corbel hinge joint (147) is fixed to the outer end of the beam bottom mold corbel (146), comprising a first fixed joint (148) located in the middle, and first rotating joints (149) located on both sides, wherein the first fixed joint (148) and the first rotating joint (149) share a pin shaft, wherein the first fixed joint (148) is fixed to the outer end of the beam bottom mold corbel (146); The rib plate (1410) is fixed between the first rotating joint (149) and the bottom rib of the beam side form (142).

7. The construction method based on the heavy cover plate construction machine according to claim 6 is characterized in that A recessed angle mold (144) is installed on the upper side of the beam side mold (142), and the recessed angle mold (144) comprises: Beam side angle formwork (1441); The slab bottom angle formwork (1442) is perpendicular to the beam side angle formwork (1441), and its side surface is flush with the inner side of the top of the beam side angle formwork (1441), thereby forming a right angle with the beam side angle formwork (1441); A hinge groove (1443) is provided at a concave angle formed by the beam side angle formwork (1441) and the plate bottom angle formwork (1442); The internal angle mold hinge (1444) is embedded in the hinge groove (1443), and comprises a second rotating joint (1445) and a second fixed joint (1446) which share a pin shaft, wherein the second fixed joint (1446) is fixedly connected to the beam side angle mold (1441), and the second rotating joint (1445) is fixedly connected to the plate bottom angle mold (1442); The second ribs (1447) are fixedly connected to the beam side angle formwork (1441) and the plate bottom angle formwork (1442), and the second ribs (1447) are arranged at the ends of the beam side angle formwork (1441) and the plate bottom angle formwork (1442); a notch (1448) is provided at the intersection of the second ribs (1447), and the notch (1448) is connected to the hinge groove (1443) to allow the internal angle form hinge (1444) to rotate; A lug (1449) is provided at the end of the second rib (1447), the lug (1449) is pin-connected to a support (14410), a screw rod (14411) is installed on the support (14410), and two screw rods (14411) are connected via a straight threaded sleeve (14412) to form a diagonal brace; The support (14410) has a U-shaped groove (144101), and the U-shaped groove (144101) is adapted to the screw rod (14411); A full-length steel back rib (14413) is arranged between the second ribs (1447) at both ends, and lugs (1449) for connecting the diagonal braces are arranged at intervals along the steel back rib (14413); A third intersecting rib (14414) is provided between the steel back rib (14413) of the beam side angle formwork (1441) and the steel back rib (14413) of the plate bottom angle formwork (1442), and a notch (1448) is also provided at the intersection of the third rib (14414); Assembly holes (1411) are provided on the first rib (145), the second rib (1447) and the steel back rib (14413).

8. The construction method based on the heavy cover plate construction machine according to claim 7 is characterized in that The beam side mold (142) comprises an upper side mold (1421) and a lower side mold (1422) and a beam side mold hinge (1423) located therebetween; the beam side mold hinge (1423) comprises a plurality of hinge sections (14231); the beam side mold hinge (1423) comprises a first hinge support (14232) fixed to the bottom surface of a first rib (145) at the bottom of the upper side mold (1421) and a second hinge support (14233) fixed to the top surface of the first rib (145) at the top of the lower side mold (1422); at least two hinge sections (14231) forming a concave shape are arranged between the first hinge support (14232) and the second hinge support (14233); the uppermost hinge section (14231) is hinged to the first hinge support (14232); and the lowermost hinge section (14231) is hinged to the second hinge support (14233).

9. The construction method based on the heavy cover plate construction machine according to claim 8, characterized in that The beam side mold hinges (1423) are arranged in pairs as a group, and the first hinge support (14232) and the second hinge support (14233) are of different lengths. On the same first rib (145), the first hinge support (14232) of one beam side mold hinge (1423) is arranged adjacent to the second hinge support (14233) of another beam side mold hinge (1423), and the two sections of concave hinge sections (14231) are arranged alternately, with more than half of one concave section located in the upper side mold (1421); more than half of the other concave section is located in the lower side mold (1422), and a common pin shaft (14234) is provided at the two concave intersections to pass through.

10. The construction method based on the heavy deck construction machine according to claim 1, characterized in that it also includes a rotatable safety guardrail (15), which includes: Edge brackets (151) are installed at intervals on the outside of the truss beam (1) at the edge position; A flat plate (152) laid on the edge corbel (151); A handrail (153) whose lower side is hinged to the outer end of the edge corbel (151); A railing hinge support (154) fixed to the outside of the upright of the railing (153); A connecting rod (155), the upper end of which is hinged on the railing hinge support (154); A guardrail hydraulic jack (156) which is laterally fixed to the side of the truss beam (1) and is located below the edge bracket (151); A piston end hinge support (157), which is fixed to the piston end of the hydraulic jack and hinged to the lower end of the connecting rod (155); The handrail (153) and the edge corbel (151) are hingedly connected via a handrail hinge joint (158), wherein the handrail hinge joint (158) comprises a handrail rotating joint (1581) and a corbel fixing joint (1582) which share a pin shaft, wherein the handrail rotating joint (1581) is fixed to the lower side of the handrail (153), and the corbel fixing joint (1582) is fixed to the outer end of the edge corbel (151); The connecting rod (155) comprises a first body (1551) and a second body (1552); a first spring (1553) is arranged between the first body (1551) and the second body (1552); one end of the first spring (1553) is fixed to the first body (1551), and the other end is fixed to the second body (1552); The first body (1551) and the second body (1552) are provided with a clamping hoop (1554); and a limiting rod (1555) is slidably provided through corresponding positions of the two clamping hoops (1554); Limiting nuts (1556) are provided at both ends of the limiting rod (1555), and a second spring (1557) is provided between the limiting nut (1556) and the clamp (1554); A jack bracket (159) is installed below the railing hydraulic jack (156), and a reaction frame (1510) is arranged on the jack bracket (159), and the reaction frame (1510) fixes the railing hydraulic jack (156); The end side of the railing (153) is hingedly connected to an angle steel (1511), the angle steel (1511) can be flipped between the railing (153) and the edge corbel (151), and one of its limbs is opposite to the end face of the edge corbel (151), and a cushion block (1512) is arranged between one limb of the angle steel (1511) and the end face of the edge corbel (151); A triangular reinforcement plate (1513) is provided between the two limbs of the angle steel (1511).

Images