Non-support cavity structure supporting system and construction method thereof

Abstract

The invention provides an unsupported cavity structure supporting system and a construction method thereof.The unsupported cavity structure supporting system comprises an embedded hook arranged on a pouring bearing plate and / or the ground, the embedded hook is connected with a threaded rod through a plurality of pull ropes, the threaded rod is arranged in two opposite side formworks in a penetrating mode, and the threaded rod is sleeved with a cylinder used for adjusting the distance between the two side formworks; the two side formworks are connected with the pouring bearing plate to form a pouring space of the vertical supporting plate, the bracket is arranged on the upper side of the vertical supporting plate, a prefabricated top plate is supported on the bracket, and the prefabricated top plate is connected with the vertical supporting plate through the pouring bearing plate. The construction method is easy to operate, the construction efficiency is greatly improved, meanwhile, the construction safety is guaranteed, and good economic benefits are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering construction, and in particular to an unsupported cavity structure support system and a construction method thereof. Background Art

[0002] With the vigorous promotion of my country's infrastructure, the water transport industry has been vigorously developed, and the construction technology of ship locks has become increasingly mature. During the construction of ship locks, there are a large number of cavity structures. During the traditional construction process, vertical and horizontal supports are mostly set up inside to cast the side walls and top plates. After the casting is completed, the formwork system is difficult to transport, the construction operation is cumbersome, the work efficiency is low, and there are great safety hazards. At the same time, since the on-site construction is greatly affected by the site environment and weather, the efficiency is low during construction.

[0003] Chinese patent document CN 117703073 A records a construction method for beam enlarged cross-section formwork without support, but the method is relatively cumbersome and inconvenient to operate; Chinese patent document CN 117947812 A records a construction method for prefabricated composite panels, which has high requirements for on-site equipment and is limited in usage scenarios, so it needs to be improved. Summary of the invention

[0004] The present invention provides an unsupported cavity structure support system and a construction method thereof, which solves the problems that the cavity structure of the ship lock construction needs to set up a support, the installation and disassembly is very complicated, the construction efficiency is low, and the construction has great safety risks.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an unsupported cavity structure support system, including embedded hooks arranged on the casting load-bearing plate and / or the ground, the embedded hooks are connected by multiple pull ropes and screws, the screws are inserted into two opposite side formworks, and a cylinder for adjusting the distance between the two side formworks is sleeved on the screws. The two side formworks and the casting load-bearing plate are connected to form a casting space for the vertical support plate, and also include a corbel arranged on the upper side of the vertical support plate, the corbel supports a prefabricated top plate, and the prefabricated top plate is connected to the vertical support plate through the casting load-bearing plate.

[0006] In the preferred scheme, the vertical support plate includes two notches symmetrically arranged on both sides, and avoidance holes are penetrated in the notches. The corbel is connected to the vertical support plate through a fixing frame. The fixing frame includes a round rod, and baffles are provided on both sides of the round rod. The baffles are attached to the notches, and the round rod is passed through the avoidance holes. The cast load-bearing plate, corbel, prefabricated top plate and vertical support plate are connected to form a support platform.

[0007] In the preferred scheme, locking units are also provided on both sides of the embedded hook, and the locking units include a vertical plate, on which a plurality of second through holes are provided, and fixing rings and hooks are respectively provided on both sides of the pull rope, and a positioning unit is threadedly connected on both sides of the screw rod, the pull rope is connected to the screw rod through the positioning unit, the fixing ring is sleeved on the screw rod, and the hook is hung in the second through hole, and the pull rope is tensioned and stressed through the position of the vertical plate and the positioning unit.

[0008] In the preferred solution, the positioning unit includes a tapered sleeve, which is threadedly connected to the screw rod, a mounting plate is supported at the bottom of the vertical plate, the mounting plate is connected to the square table through a top rod, a support plate is symmetrically provided on the upper side of the embedded hook, a threaded column is provided on the support plate, and the square table and the threaded column are threadedly connected.

[0009] In a preferred solution, a positioning pad is further provided on one side of the conical sleeve, the positioning pad is detachably sleeved on the screw, the outer diameter of the positioning pad is larger than the outer diameter of the fixing ring, and the positioning pad is used to limit the fixing ring; The embedded hook comprises a U-shaped plate, a bottom plate is symmetrically arranged at the bottom of the U-shaped plate, and the lower side of the U-shaped plate and the bottom plate are embedded in the cast load-bearing plate; It also includes an installation box, a first through hole is penetrated at the bottom of the installation box, a threaded column is penetrated in the first through hole, a first threaded hole, a second threaded hole and a third threaded hole are penetrated at the side wall of the installation box, the first threaded hole, the second threaded hole and the third threaded hole are respectively staggered along the axial direction of the threaded column, a fourth threaded hole is provided at the bottom of the square table, a locking nail is penetrated in the first threaded hole, the second threaded hole and the third threaded hole, and an end of the locking nail is against the side wall of the square table; Chamfers and turning rods are respectively arranged at both ends of the locking pin, a holding rod is also arranged on one side of the vertical plate, and a fourth threaded hole is arranged at the bottom of the square platform.

[0010] In the preferred solution, a plurality of first parallel joints are detachably provided in parallel along the height direction, a plurality of threaded sleeves are evenly distributed on the inner side of the vertical support plate, the cylindrical sleeve is arranged on the outer side of the threaded sleeve, and the screw rod is inserted into the threaded sleeve; The first parallel joint includes a first bottom plate, a plurality of first mounting holes are formed through the first bottom plate, the upper side and the lower side of the first bottom plate are respectively connected to the side template and the vertical support plate through screw rods, a support pad for adjusting the position of the first parallel joint is sleeved on the screw rod on the lower side, and the screw rod is connected to the first bottom plate through a nut; A plurality of first vertical plates are arranged in parallel on the first bottom plate, and the plurality of first vertical plates are connected through the first top plate and the first locking plate.

[0011] In the preferred solution, a second parallel joint is further provided, a plurality of threaded sleeves are evenly distributed on the inner side of the vertical support plate, the cylindrical sleeve is arranged on the outer side of the threaded sleeve, and the screw rod is inserted into the threaded sleeve; The second parallel joint is connected to the vertical support plate through a screw and a nut. The second parallel joint includes an L-shaped plate. A plurality of straight extension plates are connected to the lower part of the L-shaped plate through a reinforcing plate. A third mounting hole is penetrated through the straight extension plate. The screw is inserted into the third mounting hole. A plurality of fixing sleeves are provided on the top of the L-shaped plate. A tensioning piece is threadedly connected to the fixing sleeve. The tensioning piece is connected to the screw on the side template through a pull rope and a positioning unit. The tensioning device includes a fixed disk and a screw. The screw and the fixed sleeve are threadedly connected. The fixed disk is provided with a bayonet for limiting the movement of the pull rope. Fixed rings are provided on both sides of the pull rope. The fixed ring sleeves are arranged on the screw and the screw rod. The pull rope is tensioned and stressed through the position of the screw and the adjustment unit.

[0012] In the preferred solution, a plurality of third parallel joints are detachably provided in parallel along the height direction, a plurality of threaded sleeves are evenly distributed on the inner side of the vertical support plate, the cylindrical sleeve is arranged on the outer side of the threaded sleeve, and the screw is inserted into the threaded sleeve; The third parallel joint includes a second bottom plate, a plurality of second mounting holes are formed through the second bottom plate, the upper side and the lower side of the second bottom plate are respectively connected to the side template and the vertical support plate through screw rods, a support pad for adjusting the position of the third parallel joint is sleeved on the screw rod on the lower side, and the screw rod is connected to the second bottom plate through a nut; A plurality of second vertical plates are arranged in parallel on the second bottom plate, and the plurality of second vertical plates are connected through the second top plate and the second locking plate. A fitting plate is also arranged on the upper side of the second bottom plate.

[0013] In a preferred embodiment, a construction method of an unsupported cavity structure support system comprises the following steps: S1. Complete the construction of the cast load-bearing plate according to the design drawings, and set embedded hooks in the cast load-bearing plate; S2. Fix the two opposite side templates by screws and cylinders according to the predetermined positions, and lock the screws and embedded hooks by using a drawstring to ensure that the drawstring is under stress; S3. Complete the pouring of the vertical support plate and reserve the installation position of the corbel; S4: The prefabricated top plate is processed in the prefabrication yard and transported to the construction area; S5. Weld and install the corbels on the vertical support plates; S6. Hoist the prefabricated top plate to the top of the corbel; S7, completing the pouring construction of the vertical support plate and the pouring load-bearing plate on the upper side of the corbel, and at the same time setting embedded hooks in the pouring load-bearing plate until a support platform is formed; S8. Repeat S2 to S7 until all cavity structures are completed.

[0014] In the preferred solution, according to the cross-sectional area of ​​the support platform and the height of the vertical support plate, the first flat joint, the second flat joint or the third flat joint is used to support the outermost side formwork, and an extension plate is provided at the bottom of the outermost side formwork. At the same time, a locking unit is installed on the embedded hook as needed, and the tensioning state of the pull rope is adjusted by the locking unit.

[0015] The beneficial effects of the present invention are as follows: by arranging embedded hooks on the casting load-bearing plate, the casting template is fixed by using the embedded hooks and the pull rope, thereby greatly improving the convenience of template positioning and locking, and at the same time, the adjustment is convenient, and the screw and the cylinder are used to limit the position, thereby ensuring the stability of the structure; in addition, a locking unit is arranged on the embedded hook, which can further improve the tension state of the pull rope, and the positioning unit locks the fixing ring on the pull rope to ensure the stability of the force of the pull rope. At the same time, a tensioning member is also arranged to provide further tension adjustment for the pull rope; construction personnel do not need to set up scaffolding according to traditional construction, and the installation and disassembly of the scaffolding is complicated, which is not conducive to rapid transfer. The present invention is ingeniously designed and easy to operate, providing safety protection for construction personnel while reducing workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of pouring along the height direction of the present invention; Figure 2 This is a construction diagram of the present invention. Figure 1 ; Figure 3 This is a construction diagram of the present invention. Figure 2 ; Figure 4 This is a construction diagram of the present invention. Figure 3 ; Figure 5 This is a construction diagram of the present invention. Figure 4 ; Figure 6 This is a construction diagram of the present invention. Figure 5 ; Figure 7 This is a construction diagram of the present invention. Figure 6 ; Figure 8 This is a construction diagram of the present invention. Figure 7 ; Fig. 9 It is a schematic diagram of the vertical support plate installation corbel and prefabricated top plate of the present invention; Fig.10 yes Figure 8 Schematic diagram of the explosion structure; Fig.11 The overall structure of the present invention is shown in FIG. Figure 1 ; Fig.12yes Fig.11 A front view schematic diagram of Fig.13 yes Fig.11 A top view schematic diagram of Fig.14 yes Fig.11 Schematic diagram of the left side; Fig.15 The overall structure of the present invention is shown in FIG. Figure 2 ; Fig.16 yes Fig.11 Schematic diagram of the explosion structure Figure 1 ; Fig.17 yes Fig.16 A magnified schematic diagram of point A; Fig.18 yes Fig.11 Schematic diagram of the explosion structure Figure 2 ; Fig.19 yes Fig.18 An enlarged schematic diagram of point B; Fig. 20 The overall structure of the present invention is shown in FIG. Figure 3 ; Fig.21 yes Fig. 20 A front view schematic diagram of Fig. 22 yes Fig.21 Schematic diagram of the explosion structure; Fig.23 The overall structure of the present invention is shown in FIG. Figure 4 ; Fig.24 yes Fig.23 A front view schematic diagram of Fig.25 yes Fig.23 Schematic diagram of the explosion structure; Fig.26 The overall structure of the present invention is shown in FIG. Figure 5 ; Fig. 27 yes Fig.26 A front view schematic diagram of Fig.28 yes Fig.26 Schematic diagram of the explosion structure; Fig.29 yes Fig.28 A schematic diagram of the structure of the second flat joint installation tensioning member; Fig.30 The overall structure of the present invention is shown in FIG. Figure 6 ; Fig.31 yes Fig.30 A front view schematic diagram of Fig.32 yes Fig.30 Schematic diagram of the explosion structure; Fig.33 It is a schematic diagram of the pull rope structure of the present invention; Fig.34 It is a schematic diagram of template assembly of the present invention; Fig.35 yes Fig. 20 Schematic diagram of the adjustment unit structure.

[0017] In the figure: a cast load-bearing plate 1; a pre-buried hook 2; a U-shaped plate 201; a bottom plate 202; a support plate 203; a threaded column 204; a pull rope 3; a fixing ring 301; a hook 302; a screw rod 4; a cylinder 5; a side formwork 6; a support platform 7; a corbel 8; a prefabricated top plate 9; a vertical support plate 10; a notch 1001; an avoidance hole 1002; a fixing frame 1003; a baffle 1004; a round rod 1005; a locking unit 11; an installation box 1101; a first through hole 1102; a first threaded hole 1103; a second threaded hole 1104; a third threaded hole 1105; a square platform 1106; a top rod 1107; an installation plate 1108; a vertical plate 1109; a second through hole 1110; a locking nail 1111; a chamfer 1112; a rotating rod 1113; a holding rod 1114; a fourth threaded hole 1115; an adjustment unit 12; conical sleeve 1201; hexagonal table 1202; positioning pad 1203; operating plate 1204; fourth threaded hole 1205; holding rod 1206; nut 13; first parallel joint 14; first bottom plate 1401; first mounting hole 1402; first vertical plate 1403; first top plate 1404; first locking plate 1405; support pad 15; threaded sleeve 16; second parallel joint 17; straight extension plate 1701; L-shaped plate 1702; fixing sleeve 1703; reinforcing plate 1704; third mounting hole 1705; tensioning member 18; fixing plate 1801; screw 1802; bayonet 1803; third parallel joint 19; second bottom plate 1901; second mounting hole 1902; second vertical plate 1903; second top plate 1904; second locking plate 1905; bonding plate 1906; extension plate 20. DETAILED DESCRIPTION

[0018] Example 1 like Figure 1-8 In the invention, a support system for an unsupported cavity structure is provided, comprising a pre-embedded hook 2 arranged on a casting load-bearing plate 1 and / or the ground, the pre-embedded hook 2 being connected to a screw rod 4 by a plurality of pull ropes 3, the screw rod 4 being passed through two opposite side formworks 6, a cylinder 5 for adjusting the distance between the two side formworks 6 being sleeved on the screw rod 4, the two side formworks 6 being connected to the casting load-bearing plate 1 to form a casting space for a vertical support plate 10, and further comprising a corbel 8 arranged on the upper side of the vertical support plate 10, the corbel 8 supporting a prefabricated top plate 9, the prefabricated top plate 9 being connected to the vertical support plate 10 through the casting load-bearing plate 1.

[0019] For the traditional ship lock construction, due to the existence of a large number of cavity structures, corresponding scaffolding needs to be built. However, the scaffolding itself has many parts, and splicing is very time-consuming and labor-intensive. It is economical and greatly reduces the use of internal brackets. In addition, there are great safety risks in the construction process. It is inevitable that there will be shaking when people climb up, and the construction efficiency is low. This solution uses the bottom cast load-bearing plate 1 and\or the ground as the force foundation. Steel sections can be set in the cast load-bearing plate 1 to improve the overall strength. At the same time, it is connected to the steel bars of the vertical support plate 10, and the structural rigidity is strong; the pre-buried hook 2 is used for pulling The rope provides a stable anchor point to ensure balanced force on both sides of the side formwork 6, and there will be no tilting problem. The multiple pull ropes 3 on both sides are locked from different heights, and the fixation is safe and reliable. At the same time, the corbel 8 is used as a support, and the prefabricated top plate 9 is used to speed up the overall bottom sealing process. After the prefabricated top plate 9 is hoisted onto the corbel 8, eccentric pouring is used for the outermost formwork, thereby reducing the lateral force of the concrete on the outer formwork and avoiding the problem of slippage of the formwork 6. This process is repeated, which is conducive to speeding up the construction progress and avoiding waste of construction time while ensuring safety.

[0020] like Figure 9-10 In the preferred scheme, the vertical support plate 10 includes two notches 1001 symmetrically arranged on both sides, and an avoidance hole 1002 is penetrated in the notch 1001. The corbel 8 is connected to the vertical support plate 10 through a fixing frame 1003. The fixing frame 1003 includes a round rod 1005. Baffles 1004 are provided on both sides of the round rod 1005. The baffles 1004 are attached to the notch 1001. The round rod 1005 is penetrated in the avoidance hole 1002. The cast load-bearing plate 1, the corbel 8, the prefabricated top plate 9 and the vertical support plate 10 are connected to form a support platform 7. The cast load-bearing plate 1 on the top after the support platform 7 is formed serves as a tie point for casting the upper layer of vertical support plate 10.

[0021] During construction, the welding position for the corbel 8 can be reserved on the vertical support plate 10 by using the embedded fixing frame 1003, which is convenient for construction. The fixing frame 1003 ensures the structural stability of the corbel, thereby facilitating the maintenance of the designated plate 9 and providing a stable support foundation, which is convenient for the subsequent pouring quality. The top of the fixing frame 1003 is hoisted on the top of the two side templates 6 through a cross bar. After the strong maintenance is completed, the part higher than the top of the side template 6 is cut off to obtain a baffle 1004 with the same height as the top of the vertical support plate 10. According to the needs of use, the corbel and the vertical support plate 10 can also be cast in an integrated manner to reduce the process of welding the corbel 8.

[0022] like Figure 11-19 In the preferred embodiment, locking units 11 are further provided on both sides of the embedded hook 2, and the locking units 11 include a vertical plate 1109, and a plurality of second through holes 1110 are provided on the vertical plate 1109. Fig.33 In the figure, a fixing ring 301 and a hook 302 are respectively provided on both sides of the pull rope 3, and an adjustment unit 12 is threadedly connected to both sides of the screw rod 4. The pull rope 3 is connected to the screw rod 4 through the adjustment unit 12, the fixing ring 301 is sleeved on the screw rod 4, and the hook 302 is hung in the second through hole 1110. The pull rope 3 is tensioned and stressed through the position of the vertical plate 1109 and the adjustment unit 12.

[0023] Because the fixing ring 301 on one side of the pull rope 3 is sleeved on the screw rod 4, and then the fixing ring 301 is inserted and limited by the positioning unit 12, the fixing ring 301 rests on the conical sleeve 1201, and the whole is subjected to force, and the hook 302 on the other side of the pull rope hooks the second through hole 1110, and the vertical plate 1109 is rotated, which further changes the length of the pull rope 3, thereby ensuring that the pull rope 3 is in a tensioned state. It is easy to use and has a clever design. A lock is also hinged on the hook 302, which can cooperate with the hook 302 to form a complete closed loop. A reset spring is also provided on the lock. After the pressing force is released, the vertical plate 1109 is fixed around it. When it needs to be unlocked, the lock is pressed to form a notch at the end of the hook 302, and it is detached from the second through hole 1110.

[0024] In the preferred embodiment, the positioning unit 12 includes a conical sleeve 1201, which is threadedly connected to the screw rod 4. The bottom of the vertical plate 1109 supports a mounting plate 1108, which is connected to the square platform 1106 through a top rod 1107. A support plate 203 is symmetrically provided on the upper side of the embedded hook 2, and a threaded column 204 is provided on the support plate 203. The square platform 1106 and the threaded column 204 are threadedly connected.

[0025] A hexagonal table 1202 is provided on the outside of the tapered sleeve 1201, and the position of the tapered sleeve 1201 on the screw rod 4 is adjusted by a wrench. Square heads are provided at both ends of the screw rod 4. During installation, the square heads are driven by a wrench to be installed on the template 6 and locked with the nut 13. Then, when installing the tapered sleeve 1201 on the adjustment and positioning unit 12, a wrench is used to fix the square head, and the other wrench is used to clamp the hexagonal table 1202 for rotation. When the tapered sleeve 1201 is rotating, the small end of the tapered sleeve 1201 passes through the inside of the fixing ring 301, and then gradually abuts against the inner side of the fixing ring 301 to lock the fixing ring 301, so that the pull rope 3 is subjected to force. Since there are certain errors in the process of installing the template 6 between the cylinder 5 and the screw rod 4, the positions and distances between different screw rods 4 are not exactly the same, and there are certain changes. Therefore, the fixing ring 301 can eliminate the above errors and adapt to changes in working conditions. At the same time, the tapered sleeve 1201 can ensure the locking effect according to the above changes, and it is convenient to use.

[0026] like Figure 20-22In the preferred solution, a positioning pad 1203 is further provided on one side of the conical sleeve 1201, and the positioning pad 1203 is detachably sleeved on the screw 4, and the outer diameter of the positioning pad 1203 is larger than the outer diameter of the fixing ring 301, and the positioning pad 1203 is used to limit the fixing ring 301; The embedded hook 2 includes a U-shaped plate 201, a bottom plate 202 is symmetrically arranged at the bottom of the U-shaped plate 201, and the lower side of the U-shaped plate 201 and the bottom plate 202 are embedded in the cast load-bearing plate 1; It also includes an installation box 1101, a first through hole 1102 is penetrated at the bottom of the installation box 1101, a threaded column 204 is penetrated in the first through hole 1102, a first threaded hole 1103, a second threaded hole 1104 and a third threaded hole 1105 are penetrated at the side wall of the installation box 1101, the first threaded hole 1103, the second threaded hole 1104 and the third threaded hole 1105 are respectively staggered along the axial direction of the threaded column 204, a fourth threaded hole 1115 is provided at the bottom of the square platform 1106, a locking nail 1111 is penetrated in the first threaded hole 1103, the second threaded hole 1104 and the third threaded hole 1105, and the end of the locking nail 1111 is against the side wall of the square platform 1106; Chamfers 1112 and rotating rods 1113 are respectively provided at both ends of the locking pin 1111 , a holding rod 1114 is also provided on one side of the vertical plate 1109 , and a fourth threaded hole 1115 is provided at the bottom of the square platform 1106 .

[0027] The embedded hook 2 can ensure that it forms a stable support body with the cast load-bearing plate 1. After the casting is completed, a cutting machine is used to cut off the exposed part. The construction is simple and the effect is good. The size of the installation box 1101 of the locking unit 11 is adapted to the support plate 203. After the installation box 1101 is sleeved on the threaded column 204, the installation box 1101 will not rotate under the lateral force state due to the limitation of the U-shaped plate 201. The inner side wall of the installation box 1101 fits the outer side wall of the U-shaped plate 201. The embedded hook 2 is made of hard alloy to ensure its own structural rigidity. By rotating the vertical plate 1109, different positions After the pull rope 3 is adjusted, the end of the locking pin 1111 on one side of the rotating rod 1113 presses against the side wall of the square platform 1106 and locks it. At this time, the vertical plate 1109 is at an inconvenient angle and will not rotate. Then the conical sleeve 1201 is adjusted to fix the fixing ring 301 of the pull rope on the screw rod 4, so that the pull ropes 3 at different heights and positions are all pulled, ensuring that the pull ropes 3 are completely in a tensioned state, and the overall pulling effect is good, ensuring the stable installation of the side template 6. Moreover, since the side template 6 is fixed from the bottom, the side template 6 will not tilt or detach under gravity. At the same time, when in use, the uppermost pull rope 3 is wrapped around the two outermost side templates 6 and pulled back, so that the locking effect is better. The pull rope 3 on one side is connected to the embedded hook 2, and the pull rope 3 on one side is connected and fixed to the screw rod 4 on the lower vertical support plate 10, such as Fig.35In the embodiment, an operating plate 1204 is provided on one side of the tapered sleeve 1201, and a plurality of fourth threaded holes 1205 are provided on the operating plate 1204. A holding rod 1206 is also provided at the bottom of the operating plate 1204. When the screw 4 at the top of the side template 6 corresponding to the outermost side template 6 is locked by the tapered sleeve 1201, the fourth threaded hole 1205 on the operating plate 1204 and the screw 4 can be assembled as needed. When the selected fourth threaded hole 1205 and the tapered sleeve 1201 are not coaxial, the operating plate 1204 is rotated at this time, and the tapered sleeve 1201 will rotate around the screw 4. At this time, the tapered sleeve 1201 can be adjusted in a larger range, that is, it can better adapt to the length change of the pull rope 3 and lock the fixing ring 301.

[0028] Example 2 like Figure 23-25 In the preferred solution, a plurality of first parallel links 14 are detachably provided in parallel along the height direction, a plurality of threaded sleeves 16 are evenly distributed on the inner side of the vertical support plate 10, the cylinder 5 is sleeved on the outer side of the threaded sleeve 16, and the screw 4 is inserted into the threaded sleeve 16; The first parallel joint 14 includes a first bottom plate 1401, and a plurality of first mounting holes 1402 are formed through the first bottom plate 1401. The upper side and the lower side of the first bottom plate 1401 are respectively connected to the side template 6 and the vertical support plate 10 through screw rods 4. A support pad 15 for adjusting the position of the first parallel joint 14 is sleeved on the screw rod 4 on the lower side. The screw rod 4 is connected to the first bottom plate 1401 through a nut 13. A plurality of first vertical plates 1403 are arranged in parallel on the first bottom plate 1401 , and the plurality of first vertical plates 1403 are connected via a first top plate 1404 and a first locking plate 1405 .

[0029] The first level joint 14 can be used to support the outside of the outermost side formwork 6, and the lower vertical support plate 10 is used as the installation basis, which ensures the structural stability of the outermost side formwork 6 and a better fixing effect. A crane with a hanging basket operating platform at the front end of the boom is used for operation, which drives the operator to adjust the height and ensures that the operator can quickly follow the first level joint 14, which is convenient for manual installation and disassembly, avoids the risks of the installation process, and is convenient for construction.

[0030] Example 3 like Figure 26-29In the preferred embodiment, a second parallel joint 17 is further provided, a plurality of threaded sleeves 16 are evenly distributed on the inner side of the vertical support plate 10, a cylinder 5 is sleeved on the outer side of the threaded sleeve 16, a screw 4 is passed through the threaded sleeve 16, the second parallel joint 17 is connected to the vertical support plate 10 through the screw 4 and the nut 13, the second parallel joint 17 comprises an L-shaped plate 1702, a plurality of straight extension plates 1701 are connected to the lower part of the L-shaped plate 1702 through a reinforcing plate 1704, a third mounting hole 1705 is penetrated on the straight extension plate 1701, the screw 4 is passed through the third mounting hole 1705, a plurality of fixing sleeves 1703 are provided on the top of the L-shaped plate 1702, a tensioning member 18 is threadedly connected to the fixing sleeve 1703, and the tensioning member 18 is connected to the screw 4 on the side template 6 through the pull rope 3 and the positioning unit 12; The tensioning member 18 includes a fixed disk 1801 and a screw 1802. The screw 1802 and the fixed sleeve 1703 are threadedly connected. The fixed disk 1801 is provided with a bayonet 1803 for limiting the movement of the pull rope 3. Fixed rings 301 are respectively provided on both sides of the pull rope 3. The fixed rings 301 are sleeved on the screw 1802 and the screw rod 4. The pull rope 3 is tensioned and stressed through the position of the screw 1802 and the adjustment unit 12.

[0031] Compared with the use of the first flat joint 14, when the second flat joint 17 is used for construction, it is only necessary to install the screw 4 on the threaded sleeve 16 on the vertical support plate 10 on the lower side, and then fix the second flat joint 17 on the vertical support plate 10 through the nut 13. At this time, the fixing sleeve 1703 of the L-shaped plate 1702 on the upper side is used as the pulling point of the pull rope 3. By rotating the fixing disk 1801 of the tensioning member 18, the screw 1802 is driven to rotate. At this time, the position of the tensioning member 18 relative to the fixing sleeve 1703 can be adjusted. The fixing ring 301 of the pull rope 3 is set on the screw 1802, and the rotation After the fixing plate 1801 is adjusted to a suitable position, the bayonet 1803 is roughly aligned with the screw 4 on one side of the side template 6, and the fixing ring 301 on the other side of the pull rope 3 is sleeved on the screw 4 on the outermost side template 6. At this time, the fixing ring 301 on the screw 4 is used to adjust the position of the pull rope 3 through the conical sleeve 1201 on the positioning unit 12 to ensure that the pull rope 3 is in a tensioned state. The adjustment is convenient and the effect is good. A crane with a hanging basket operating platform at the front end of the boom is used for operation, which drives the operator to adjust the height and ensures that the operator can quickly follow the second level 17.

[0032] Example 4 like Figure 30-32 In the preferred solution, a plurality of third parallel links 19 are detachably provided in parallel along the height direction, a plurality of threaded sleeves 16 are evenly distributed on the inner side of the vertical support plate 10, the cylinder 5 is sleeved on the outer side of the threaded sleeve 16, and the screw 4 is inserted into the threaded sleeve 16; The third parallel joint 19 includes a second bottom plate 1901, and a plurality of second mounting holes 1902 are formed through the second bottom plate 1901. The upper side and the lower side of the second bottom plate 1901 are respectively connected to the side template 6 and the vertical support plate 10 through screw rods 4. A support pad 15 for adjusting the position of the third parallel joint 19 is sleeved on the screw rod 4 on the lower side. The screw rod 4 is connected to the second bottom plate 1901 through a nut 13. A plurality of second vertical plates 1903 are arranged in parallel on the second bottom plate 1901 . The plurality of second vertical plates 1903 are connected via a second top plate 1904 and a second locking plate 1905 . A fitting plate 1906 is also arranged on the upper side of the second bottom plate 1901 .

[0033] Compared with the use of the first flat link 14 and the second flat link 17, the third flat link 19 is used, which takes into account the convenience of operation and the firmness of the overall fixation. The third flat link 19 is shorter and lighter than the first flat link 14, and is more convenient for high-altitude lifting. At the same time, the third flat link 19 plays a role in reference positioning. The position is adjusted through the outermost side template 6. The pull rope 3 is still pulled back through the screw rod 4 on the vertical support plate 10 as a pulling point to fix the side template 6. The overall fixing effect is better. Similarly, a crane with a hanging basket operating platform at the front end of the boom is used for operation, which drives the operator to adjust the height and ensures that the operator can quickly install and remove the third flat link 19. Fig.35 In the embodiment, an operating plate 1204 is provided on one side of the tapered sleeve 1201, and a plurality of fourth threaded holes 1205 are provided on the operating plate 1204. A holding rod 1206 is also provided at the bottom of the operating plate 1204. When the screw 4 at the top of the side template 6 corresponding to the outermost side template 6 is locked by the tapered sleeve 1201, the fourth threaded hole 1205 on the operating plate 1204 and the screw 4 can be assembled as needed. When the selected fourth threaded hole 1205 and the tapered sleeve 1201 are not coaxial, the operating plate 1204 is rotated at this time, and the tapered sleeve 1201 will rotate around the screw 4. At this time, the tapered sleeve 1201 can be adjusted in a larger range, that is, it can better adapt to the length change of the pull rope 3 and lock the fixing ring 301.

[0034] In a preferred embodiment, a construction method of an unsupported cavity structure support system comprises the following steps: S1. Complete the construction of the cast load-bearing plate 1 according to the design drawings, and set the embedded hook 2 in the cast load-bearing plate 1; in order to ensure the structural stability of the cast load-bearing plate 1 during construction, a steel section is set to improve the overall rigidity; S2, fix the two opposite side templates 6 by screw rod 4 and cylinder 5 according to the predetermined position, and lock the screw rod 4 and the embedded hook 2 by using the pull rope 3 to ensure that the pull rope 3 is in a stressed state; S3, complete the pouring of the vertical support plate 10, and reserve the installation position of the corbel 8; S4, the prefabricated top plate 9 is processed in the prefabrication site and then transported to the construction area; S5, welding and installing the bracket 8 on the vertical support plate 10; S6, hoisting the prefabricated top plate 9 to the top of the corbel 8; S7, completing the pouring construction of the vertical support plate 10 and the pouring load-bearing plate 1 on the upper side of the corbel 8, and at the same time setting the embedded hook 2 in the pouring load-bearing plate 1 until the support platform 7 is formed; S8. Repeat S2 to S7 until all cavity structures are completed.

[0035] In a preferred solution, according to the cross-sectional area of ​​the support platform 7 and the height of the vertical support plate 10, the first flat joint 14, the second flat joint 17 or the third flat joint 19 is used to support the outermost side template 6, such as Fig.34 In the embodiment, an extension plate 20 is provided at the bottom of the outermost side template 6, and a locking unit 11 is installed on the embedded hook 2 as needed, and the tension state of the pull rope 3 is adjusted by the locking unit 11.

[0036] When in use, the construction hoisting environment is checked on site, and the corresponding fixing method is selected according to the convenience of construction. At the same time, the first flat joint 14 and the third flat joint 19 can also be used in combination to ensure the overall construction effect.

[0037] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An unsupported cavity structure support system, characterized by: The invention comprises a pre-embedded hook (2) arranged on a casting load-bearing plate (1) and / or the ground, the pre-embedded hook (2) being connected to a screw rod (4) via a plurality of pull ropes (3), the screw rod (4) being inserted into two opposite side templates (6), a cylinder (5) being sleeved on the screw rod (4) for adjusting the distance between the two side templates (6), the two side templates (6) and the casting load-bearing plate (1) being connected to form a casting space for a vertical support plate (10), and a corbel (8) being arranged on the upper side of the vertical support plate (10), the corbel (8) supporting a prefabricated top plate (9), the prefabricated top plate (9) being connected to the casting load-bearing plate (1) and the vertical support plate (10).

2. The unsupported cavity structure support system according to claim 1 is characterized in that: The vertical support plate (10) comprises two notches (1001) symmetrically arranged on both sides, and an avoidance hole (1002) is penetrated in the notch (1001). The corbel (8) is connected to the vertical support plate (10) through a fixing frame (1003), and the fixing frame (1003) comprises a round rod (1005). Baffles (1004) are arranged on both sides of the round rod (1005), and the baffles (1004) are fitted on the notch (1001). The round rod (1005) is penetrated in the avoidance hole (1002). The cast load-bearing plate (1), the corbel (8), the prefabricated top plate (9) and the vertical support plate (10) are connected to form a support platform (7).

3. The unsupported cavity structure support system according to claim 1 is characterized in that: The embedded hook (2) is also provided with a locking unit (11) on both sides. The locking unit (11) comprises a vertical plate (1109). The vertical plate (1109) is provided with a plurality of second through holes (1110). The pull rope (3) is provided with a fixing ring (301) and a hook (302) on both sides. The screw rod (4) is threadedly connected with a positioning unit (12). The pull rope (3) is connected to the screw rod (4) via the positioning unit (12). The fixing ring (301) is sleeved on the screw rod (4). The hook (302) is hung in the second through hole (1110). The pull rope (3) is tensioned and stressed by the positions of the vertical plate (1109) and the positioning unit (12).

4. The unsupported cavity structure support system according to claim 3 is characterized by: The positioning unit (12) comprises a conical sleeve (1201), the conical sleeve (1201) and the screw rod (4) are threadedly connected, the bottom of the vertical plate (1109) supports a mounting plate (1108), the mounting plate (1108) is connected to the square platform (1106) via a top rod (1107), a support plate (203) is symmetrically arranged on the upper side of the embedded hook (2), a threaded column (204) is arranged on the support plate (203), and the square platform (1106) and the threaded column (204) are threadedly connected.

5. The unsupported cavity structure support system according to claim 4 is characterized in that: A positioning pad (1203) is also provided on one side of the conical sleeve (1201). The positioning pad (1203) is detachably sleeved on the screw rod (4). The outer diameter of the positioning pad (1203) is greater than the outer diameter of the fixing ring (301). The positioning pad (1203) is used to limit the fixing ring (301). The embedded hook (2) comprises a U-shaped plate (201), a bottom plate (202) is symmetrically arranged at the bottom of the U-shaped plate (201), and the lower side of the U-shaped plate (201) and the bottom plate (202) are embedded in the cast load-bearing plate (1); It also comprises an installation box (1101), wherein a first through hole (1102) is provided through the bottom of the installation box (1101), a threaded column (204) is provided in the first through hole (1102), a first threaded hole (1103), a second threaded hole (1104) and a third threaded hole (1105) are provided through the side wall of the installation box (1101), the first threaded hole (1103), the second threaded hole (1104) and the third threaded hole (1105) are respectively arranged in an axially staggered manner along the threaded column (204), a fourth threaded hole (1115) is provided at the bottom of the square platform (1106), a locking pin (1111) is provided in the first threaded hole (1103), the second threaded hole (1104) and the third threaded hole (1105), and an end of the locking pin (1111) abuts against the side wall of the square platform (1106); The two ends of the locking pin (1111) are respectively provided with chamfers (1112) and a rotating rod (1113), one side of the vertical plate (1109) is also provided with a holding rod (1114), and the bottom of the square platform (1106) is provided with a fourth threaded hole (1115).

6. The unsupported cavity structure support system according to claim 5 is characterized in that: A plurality of first parallel links (14) are also provided in parallel and detachably along the height direction; a plurality of threaded sleeves (16) are evenly distributed on the inner side of the vertical support plate (10); the cylinder (5) is sleeved on the outer side of the threaded sleeve (16); and the screw (4) is inserted into the threaded sleeve (16); The first parallel joint (14) comprises a first bottom plate (1401), a plurality of first mounting holes (1402) are formed through the first bottom plate (1401), the upper side and the lower side of the first bottom plate (1401) are respectively connected to the side template (6) and the vertical support plate (10) via screw rods (4), a support pad (15) for adjusting the position of the first parallel joint (14) is sleeved on the screw rod (4) on the lower side, and the screw rod (4) is connected to the first bottom plate (1401) via a nut (13); A plurality of first vertical plates (1403) are arranged in parallel on the first bottom plate (1401), and the plurality of first vertical plates (1403) are connected via a first top plate (1404) and a first locking plate (1405).

7. The unsupported cavity structure support system according to claim 5 is characterized by: A second parallel joint (17) is also provided. A plurality of threaded sleeves (16) are evenly distributed on the inner side of the vertical support plate (10). The cylinder (5) is sleeved on the outer side of the threaded sleeve (16), and the screw (4) is inserted into the threaded sleeve (16). The second parallel joint (17) is connected to the vertical support plate (10) via a screw rod (4) and a nut (13), and the second parallel joint (17) comprises an L-shaped plate (1702), the lower part of the L-shaped plate (1702) is connected to a plurality of straight extension plates (1701) via a reinforcing plate (1704), a third mounting hole (1705) is provided through the straight extension plate (1701), the screw rod (4) is passed through the third mounting hole (1705), a plurality of fixing sleeves (1703) are provided at the top of the L-shaped plate (1702), a tensioning member (18) is threadedly connected to the fixing sleeve (1703), and the tensioning member (18) is connected to the screw rod (4) on the side template (6) via a pull rope (3) and a positioning unit (12); The tensioning member (18) comprises a fixing plate (1801) and a screw (1802); the screw (1802) and the fixing sleeve (1703) are threadedly connected; a bayonet (1803) for limiting the movement of the pull rope (3) is provided on the fixing plate (1801); fixing rings (301) are respectively provided on both sides of the pull rope (3); the fixing rings (301) are sleeved on the screw (1802) and the screw rod (4); and the pull rope (3) is tensioned and stressed by the position of the screw (1802) and the positioning unit (12).

8. The unsupported cavity structure support system according to claim 5 is characterized by: A plurality of third parallel links (19) are also provided in parallel and detachably along the height direction. A plurality of threaded sleeves (16) are evenly distributed on the inner side of the vertical support plate (10). The cylinder (5) is sleeved on the outer side of the threaded sleeve (16), and the screw (4) is inserted into the threaded sleeve (16). The third parallel joint (19) comprises a second bottom plate (1901), the second bottom plate (1901) is provided with a plurality of second mounting holes (1902), the upper side and the lower side of the second bottom plate (1901) are respectively connected to the side template (6) and the vertical support plate (10) via screw rods (4), the lower screw rod (4) is provided with a support pad (15) for adjusting the position of the third parallel joint (19), and the screw rod (4) is connected to the second bottom plate (1901) via a nut (13); A plurality of second vertical plates (1903) are arranged in parallel on the second bottom plate (1901), and the plurality of second vertical plates (1903) are connected via a second top plate (1904) and a second locking plate (1905). A bonding plate (1906) is also arranged on the upper side of the second bottom plate (1901).

9. The construction method of an unsupported cavity structure support system according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Complete the construction of the cast load-bearing plate (1) according to the design drawings, and set the embedded hook (2) in the cast load-bearing plate (1); S2. Fix the two opposite side templates (6) at predetermined positions by means of the screw rod (4) and the cylinder (5), and lock the screw rod (4) and the embedded hook (2) by means of the draw rope (3) to ensure that the draw rope (3) is in a stressed state; S3, completing the pouring of the vertical support plate (10) and reserving the installation position of the corbel (8); S4, the prefabricated top plate (9) is processed in the prefabrication site and then transported to the construction area; S5. Welding and installing the bracket (8) on the vertical support plate (10); S6, hoisting the prefabricated top plate (9) to the top of the corbel (8); S7, completing the pouring construction of the pouring load-bearing plate (1) on the upper side of the vertical support plate (10) and the corbel (8), and at the same time setting the embedded hook (2) in the pouring load-bearing plate (1) until the support platform (7) is formed; S8. Repeat S2 to S7 until all cavity structures are completed.

10. The construction method of the unsupported cavity structure support system according to claim 9, characterized in that: According to the cross-sectional dimensions of the support platform (7) and the height of the vertical support plate (10), the first parallel joint (14), the second parallel joint (17), or the third parallel joint (19) is used to support the outermost side template (6), and an extension plate (20) is provided at the bottom of the outermost side template (6). At the same time, a locking unit (11) is installed on the embedded hook (2) as required, and the tension state of the pull rope (3) is adjusted by the locking unit (11).

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