Grain warehouse arch slab chord roof formwork support and fixing system

Abstract

This invention discloses a formwork support and fixing system for the chord plate roof of a grain silo arch, relating to the field of building construction technology. The system includes horizontal bracing upper sealing plates at both ends of a vertical precast partition. A load-bearing fixing plate is bonded between the top of the horizontal bracing upper sealing plate and the bottom inner side of the vertical precast partition. A manual hydraulic cylinder is snapped onto the top of the load-bearing fixing plate, and a double-clamp fixing plate is snapped onto the top of the manual hydraulic cylinder. One end of the double-clamp fixing plate is fitted with a diagonal double-clamp bracket via a combination of pins. Both ends of the diagonal double-clamp bracket are fitted with horizontal bracing tension brackets. This invention utilizes precast components with small structures as central supports, combined with scaffolding support at a few points at the bottom, and utilizes top collaborative support to achieve rapid pouring construction in small spaces, effectively improving the efficiency of actual construction. Furthermore, the use of multi-segment snapping and pressing connections achieves coordinated cooperation and force distribution among components, enhancing overall stability.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a formwork support and fixing system for the arched roof slab of a grain silo. Background Technology

[0002] The granary arch is a special roof structure used in granary construction. Due to its good structural performance and relatively economical construction, it is widely used in grain storage warehouses. The arch is usually composed of an upper curved panel and a lower flat panel. The upper and lower chords are connected by a frame or precast concrete partition to form a load-bearing system similar to a roof truss. Through its unique curved shape, it can cleverly use high-strength materials and prestressed steel bars to transform the vertical load of the roof into axial pressure transmitted along the arch, thereby reducing the amount of material used.

[0003] However, the construction of large-span arched roofs for existing grain silos mostly requires the erection of large-scale scaffolding or the installation of prefabricated arched panels using hoisting equipment. In actual construction, this results in problems such as excessive site occupation, long construction period, high overall operating costs, and high risks associated with working at heights. It is particularly difficult to construct grain silos with limited space and tight schedules, which greatly affects the actual construction efficiency. Summary of the Invention

[0004] This invention provides a formwork support and fixing system for the arched roof of a grain silo, which can effectively solve the problems mentioned in the background art. In the construction of large-span arched roofs of grain silos, most of them require the construction of large-scale scaffolding or the installation of prefabricated arched panels by hoisting equipment. In actual construction, these methods have the problems of excessive site occupation, long construction period, high overall operating cost and high risk of high-altitude operation. They are particularly difficult to construct in grain silos with limited space and tight schedules, which greatly affects the actual construction efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a roof template support and fixing system for the arched slab of a grain warehouse, comprising a vertical prefabricated partition, wherein a multi-bracing clamp assembly is provided on the side end of the vertical prefabricated partition; The multi-braced clamp assembly includes a flat braced upper sealing plate; The vertical prefabricated partition is provided with flat bracing upper sealing plates at both ends, and a load-bearing fixing plate is bonded between the top of the flat bracing upper sealing plate and the bottom of the inner side of the vertical prefabricated partition. A manual hydraulic cylinder is snapped into the top of the bearing fixing plate, and a double-snap fixing plate is snapped into the top of the manual hydraulic cylinder; One end of the double-card fixing plate is equipped with a diagonal double-card frame via a combination pin, and both ends of the diagonal double-card frame are fitted with a flat bracing tension frame. One end of the flat support traction frame is symmetrically connected with a double threaded positioning rod, and a double convex side baffle is sleeved on the outer end of the double threaded positioning rod at the position corresponding to the flat support traction frame. One end of the double-convex side baffle is fitted with an elastic sealing strip via a double-threaded positioning rod, and an upper sealing fixing plate is inserted and installed between the two double-convex side baffles.

[0006] According to the above technical solution, one end of the flat brace upper sealing plate is attached to one end of the vertical prefabricated partition plate, the double threaded positioning rod is installed through one end of the diagonal brace double bracket, and the bottom end of the elastic pressure strip is attached to the top end of the upper sealing fixing plate.

[0007] According to the above technical solution, double threaded fixing rods are connected through both sides of one end of the vertical prefabricated partition, and the outer ends of the double threaded positioning rod and the double threaded fixing rod are connected with compression nuts by threads. Both ends of the double-threaded fixing rod are fitted with upper inclined alignment plates, and a lower sealing fixing plate is engaged between the two double-convex side baffles at the position corresponding to the upper inclined alignment plate. The longitudinal sections of the upper sealing plate and the lower sealing plate are arc-shaped, and the top of the upper inclined alignment plate is attached to the bottom of the lower sealing plate.

[0008] According to the above technical solution, the bottom ends of the two inclined alignment plates are engaged with double protruding insert blocks; One end of each of the multiple double-convex side baffles is inserted into and installed with a multi-convex positioning plate, and one end of the multi-convex positioning plate is sleeved with an upper convex limiting plate through a double threaded positioning rod. The upper convex limiting plate and the bearing fixing plate are inserted and installed with an upper insert fixing plate at the bottom end, and the lower limit double convex plate is provided at the bottom end of the upper insert fixing plate; One end of the upper inclined alignment plate is attached to one end of the vertical prefabricated partition plate, and the inclined double bracket is inserted and installed at the bottom end of the upper inclined alignment plate.

[0009] According to the above technical solution, one end of the multi-convex positioning plate is engaged with one end of the upper sealing fixing plate, and one end of the multi-convex positioning plate is engaged with one end of the lower sealing fixing plate.

[0010] According to the above technical solution, there are four multi-convex positioning plates, and the longitudinal section of the upper convex limiting plate is L-shaped, and there are two upper convex limiting plates.

[0011] According to the above technical solution, a combined component is provided on the side end of the vertical prefabricated partition; The combined component includes double-limited support ribs; The top and bottom ends of the vertical prefabricated partition are each equidistantly embedded with several double-limit support ribs, and the side ends of the double-limit support ribs located at the top of the vertical prefabricated partition are equipped with upper chord reinforcing ribs. A lower chord reinforcing bar is installed on the side end of the double-limiting support bar located at the bottom end of the vertical prefabricated partition plate; A closed metal plate is installed at the top of the upper sealing fixing plate, and a side limit insert bracket is inserted into one end of the bottom limit double convex plate. A bottom closing fixing bracket is provided at the bottom end of the side limit insert bracket. A sealing partition is inserted and installed at the top of the bottom closing fixing frame, and a fixing insert bracket is inserted and installed at one end of the bottom limit double convex plate. The bottom limit double convex plate, the side limit insert bracket and the fixed insert bracket are all provided with a combined fixing hole at one end, and a prestressed component is inserted and installed inside the combined fixing hole.

[0012] According to the above technical solution, a number of insert fixing rods are welded at equal intervals to the bottom ends of the upper insert fixing plate and the bottom limit double convex plate, and a multi-convex connecting positioning frame is sleeved on the bottom ends of the number of insert fixing rods. The longitudinal section of the upper chord reinforcing rib is arc-shaped. The upper chord reinforcing rib is placed between the upper sealing plate and the lower sealing plate, and the lower chord reinforcing rib is placed between the flat bracing upper sealing plate and the upper inserting fixing plate.

[0013] According to the above technical solution, a hollow assembly block is welded to the bottom end of the multi-convex connection positioning frame at the position corresponding to the insertion card fixing rod, and a fixing pin is inserted and installed between the hollow assembly block and the insertion card fixing rod. The multi-convex connection positioning frame has equidistant combination connection holes at one end; The prestressed member is fitted and connected to the upper chord reinforcing rib and the lower chord reinforcing rib, and the top of the multi-convex connection positioning frame is attached to the bottom of the upper insertion fixing plate.

[0014] According to the above technical solution, the top of the multi-convex connecting positioning frame is fitted with the bottom end of the bottom limit double-convex plate, the hollow combination block is sleeved and connected with the insert card fixing rod, and the top of the fixed insert card frame is sleeved and connected with the side limit insert card frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. A multi-bracing clamping assembly is provided. The lower sealing plate is clamped to the upper inclined alignment plate, and the upper sealing plate is clamped to the double-convex side baffle and the multi-convex clamping plate. With the help of double threaded positioning rods, flat bracing traction frames and diagonal double clamping frames, the multi-convex clamping plate, the lower sealing plate of the double-convex side baffle and the upper sealing plate are clamped in sections. With the help of elastic pressure sealing strips, the top connection is pressed and restricted. The top and bottom end faces are pressed and aligned. With the help of the inner clamping support and clamping restriction on both sides, and with the support and positioning of the middle precast component, the formwork assembly can be quickly poured on site during the production of the arch slab and chord plate. At the same time, there is no need to install a lot of scaffolding, which reduces the overall weight of the upper slab during construction, thereby reducing the counterweight and number of bottom support components, achieving overall reduction and improving construction efficiency. By engaging the upper sealing plate of the flat brace with the bottom double convex plate and the upper insert fixing plate, and cooperating with the double threaded fixing rod to align the upper inclined plate, the double bracket of the inclined brace, the double convex insert block and the double clamp fixing plate are engaged by the combination pins. The double bracket of the inclined brace and the double convex insert block are pushed by the manual hydraulic cylinder to engage with the upper inclined plate, thereby restricting the position of the upper inclined plate. By using multi-segment engagement support and overall inclined brace alignment, and cooperating with multi-segment lifting and pressing restrictions, the overall load-bearing of the upper chord support formwork is distributed, and the linkage construction of the lower chord plate and the upper chord plate is realized, reducing the number of times the support is disassembled and assembled, and reducing the cumbersomeness of actual operation. By using the quick-connection and multi-segment support of the upper and lower chord plates, and the collaborative support of the formwork, the problem of requiring large-scale scaffolding or a large number of hoisting equipment for installation in existing technologies is effectively solved. By using prefabricated components of small structures as central supports, combined with a small number of scaffolding supports at the bottom, and with the help of top support, rapid pouring construction in small spaces can be achieved, which effectively improves the efficiency of actual construction. Furthermore, by using multi-segment interlocking and pressing connections, coordination and force distribution between various components can be achieved, improving overall stability, reducing the amount of mechanical equipment required for construction, reducing the labor intensity of workers, and effectively ensuring product quality, while also reducing actual construction costs and risks.

[0016] 2. A modular assembly is provided, which connects to the scaffolding via a multi-convex connecting positioning frame. Fixed pins are used to connect the insert fixing rod to the hollow modular block, allowing the multi-convex connecting positioning frame and the insert fixing rod to combine and restrict the positioning of the bottom closing fixing frame and the bottom limit double-convex plate. A fixed insert bracket is used to connect with the bottom closing fixing frame, and a side limit insert bracket is used to engage with the bottom closing fixing frame and the fixed insert bracket. A sealing partition is used to press and restrict the top, enabling the installation of formwork for the lower chord plate of the grain silo arch. This is achieved in conjunction with the prestressed lower chord reinforcing ribs and upper chord reinforcing ribs for tension restriction. This is further enhanced by the lower chord reinforcing ribs, double-limit support ribs, and upper chord reinforcement. The reinforced rib bending and binding treatment utilizes a bottom-up, progressively engaging connection and quick-insertion assembly to reduce the number of times workers need to repeatedly align the formwork during construction. The multi-segment quick-insertion connection prevents components from tipping over or detaching during installation, eliminating the need for additional auxiliary parts and repeated manual clamping by workers. This effectively reduces the difficulty of actual operation and improves installation efficiency. Combined with multi-segment limiting supports and bottom traction supports, it enables rapid pre-positioning of the equipment, ensuring the accuracy and stability of the upper chord formwork installation.

[0017] In summary, by using multi-bracing clamping components and combined structures in tandem, and employing a bottom-up, layer-by-layer interlocking connection, multiple sets of formwork can be quickly positioned and combined during the construction of grain silo arch slabs without repeated alignment, thus improving the effectiveness of formwork combination construction. Combined with multi-position edge restraint and central distributed stress treatment, upper and lower end tension restraint and side clamping restraint, and central diagonal bracing micro-adjustment and compression treatment, the overall casting stress can be effectively balanced, avoiding excessive stress at a single point, and improving the efficiency and stability of actual construction. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] In the attached diagram: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the installation structure of the vertical prefabricated partition of the present invention; Figure 3 This is a schematic diagram of the structure of the multi-braced clamp assembly of the present invention; Figure 4 This is a schematic diagram of the installation structure of the compression nut of the present invention; Figure 5 This is a schematic diagram of the installation structure of the upper inclined alignment plate of the present invention; Figure 6 This is a schematic diagram of the installation structure of the diagonal brace double card holder of the present invention; Figure 7 This is a schematic diagram of the structure of the combined components of the present invention; Figure 8 This is a schematic diagram of the installation structure of the bottom-closed fixing frame of the present invention; Figure 9 This is a schematic diagram of the installation structure of the multi-convex connection positioning frame of the present invention; Labels in the diagram: 1. Vertical prefabricated partition; 2. Multi-bracing clamp assembly; 201. Flat brace upper sealing plate; 202. Bearing fixing plate; 203. Manual hydraulic cylinder; 204. Double-card fixing plate; 205. Diagonal brace double-card bracket; 206. Flat brace traction frame; 207. Double threaded positioning rod; 208. Double convex side baffle; 209. Elastic pressure sealing strip; 210. Upper sealing fixing plate; 211. Double threaded fixing rod; 212. Pressure sealing nut; 213. Upper inclined alignment plate; 214. Lower sealing fixing plate; 215. Double convex insertion block; 216. Multi-convex positioning plate; 217. Upper convex limiting plate; 218. Upper insertion fixing plate; 219. Bottom limit double convex plate; 220. Combination pin; 3. Combined components; 301. Double-limited support rib; 302. Upper chord reinforcing rib; 303. Lower chord reinforcing rib; 304. Combined fixing hole; 305. Prestressed component; 306. Insert card fixing rod; 307. Multi-convex connection positioning frame; 308. Hollow combined block; 309. Fixing pin; 310. Combined connection hole; 311. Enclosed metal plate; 312. Side-limited insert card frame; 313. Bottom-closed fixing frame; 314. Closed and airtight partition frame; 315. Fixed insert card frame. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figure 1-9 As shown, the present invention provides a technical solution, a template support and fixing system for the roof of the granary arch plate, including a vertical prefabricated partition 1, and a multi-bracing clamp assembly 2 is provided on the side end of the vertical prefabricated partition 1. The multi-bracing clamp assembly 2 includes a flat brace upper sealing plate 201, a load-bearing fixing plate 202, a manual hydraulic cylinder 203, a double-card fixing plate 204, an inclined brace double-card bracket 205, a flat brace traction bracket 206, a double-threaded positioning rod 207, a double-convex side baffle 208, an elastic pressure sealing strip 209, an upper sealing fixing plate 210, a double-threaded fixing rod 211, a pressure sealing nut 212, an upper inclined alignment plate 213, a lower sealing fixing plate 214, a double-convex insertion block 215, a multi-convex positioning plate 216, an upper convex limiting plate 217, an upper insertion fixing plate 218, a bottom limit double-convex plate 219, and a combination pin 220. The vertical prefabricated partition 1 is provided with flat bracing upper sealing plates 201 at both ends. One end of the flat bracing upper sealing plate 201 is attached to one end of the vertical prefabricated partition 1 to achieve alignment and fitting restriction. A load-bearing fixing plate 202 is bonded between the top of the flat bracing upper sealing plate 201 and the bottom inner side of the vertical prefabricated partition 1. A manual hydraulic cylinder 203 is snapped onto the top of the bearing fixing plate 202, and a double-clamp fixing plate 204 is snapped onto the top of the manual hydraulic cylinder 203. One end of the double-card fixing plate 204 is equipped with a diagonal double-card bracket 205 via a combination pin 220, and both ends of the diagonal double-card bracket 205 are fitted with a flat bracing tie bracket 206. A double threaded positioning rod 207 is symmetrically inserted through one end of the flat bracing traction frame 206. The double threaded positioning rod 207 is installed through one end of the diagonal bracing double clamp frame 205 to ensure the accuracy and stability of the clamping restriction. A double convex side baffle 208 is sleeved on the outer end of the double threaded positioning rod 207 at the position corresponding to the flat bracing traction frame 206. One end of the double-convex side baffle 208 is fitted with an elastic pressure strip 209 via a double threaded positioning rod 207. An upper sealing plate 210 is inserted and installed between the two double-convex side baffles 208. The bottom end of the elastic pressure strip 209 is attached to the top end of the upper sealing plate 210 to achieve alignment restriction and limited support. Both sides of one end of the vertical prefabricated partition 1 are connected by double threaded fixing rods 211, and both ends of the double threaded positioning rod 207 and the double threaded fixing rod 211 are connected by threaded locking nuts 212. Both ends of the double-threaded fixing rod 211 are fitted with upper inclined alignment plates 213. One end of the upper inclined alignment plate 213 is attached to one end of the vertical precast partition 1. The double-bracing bracket 205 is inserted and installed at the bottom of the upper inclined alignment plate 213 to achieve upper inclined alignment and engagement, ensuring the stability of overall support restriction and sealing. The lower sealing plate 214 is engaged between the two double-convex side baffles 208 at the position corresponding to the upper inclined alignment plate 213. The longitudinal section of the upper sealing plate 210 and the lower sealing plate 214 is arc-shaped to ensure the shape of the upper chord and the stability of the casting. The top of the upper inclined alignment plate 213 is attached to the bottom of the lower sealing plate 214 to achieve fitting support and positioning restriction. Two of the upper inclined alignment plates 213 are fitted with double protruding insert blocks 215 at their bottom ends; Multiple double-convex side baffles 208 are inserted into and installed with a multi-convex locking plate 216 at one end. One end of the multi-convex locking plate 216 is engaged with one end of the upper sealing fixing plate 210 and one end of the lower sealing fixing plate 214. There are four multi-convex locking plates 216 to achieve double-end alignment and engagement, ensuring overall limitation and rapid assembly. One end of the multi-convex locking plate 216 is sleeved with an upper convex closing plate 217 through a double threaded positioning rod 207. The longitudinal section of the upper convex closing plate 217 is L-shaped. There are two upper convex closing plates 217 to achieve alignment sealing and isolation limitation. An upper insertion fixing plate 218 is inserted and installed at the bottom end of the upper convex limiting plate 217 and the bearing fixing plate 202, and a bottom limit double convex plate 219 is provided at the bottom end of the upper insertion fixing plate 218.

[0022] A combined component 3 is provided on the side end of the vertical prefabricated partition 1; The combined component 3 includes a double-limiting support rib 301, an upper chord reinforcing rib 302, a lower chord reinforcing rib 303, a combined fixing hole 304, a prestressed component 305, a plug-in fixing rod 306, a multi-convex connection positioning frame 307, a hollow combined block 308, a fixing pin 309, a combined connection hole 310, a closed metal plate 311, a side-limiting plug-in frame 312, a bottom-closed fixing frame 313, a close-fitting partition frame 314, and a fixing plug-in frame 315; Several double-limit support ribs 301 are embedded at equal intervals at the top and bottom of the vertical prefabricated partition 1. The double-limit support ribs 301 located at the top of the vertical prefabricated partition 1 are equipped with upper chord reinforcing ribs 302 on their side ends. The double-limited support bar 301 located at the bottom of the vertical precast partition 1 is equipped with a lower chord reinforcing bar 303 on its side. The longitudinal section of the upper chord reinforcing bar 302 is arc-shaped. The upper chord reinforcing bar 302 is placed between the upper sealing plate 210 and the lower sealing plate 214. The lower chord reinforcing bar 303 is placed between the flat bracing upper sealing plate 201 and the upper inserting fixing plate 218 to achieve the alignment of the reinforcing bars. A closed metal plate 311 is installed at the top of the upper sealing plate 210, and a side limit card holder 312 is inserted into one end of the bottom limit double convex plate 219. A bottom closing fixing bracket 313 is provided at the bottom of the side limit card holder 312. A sealing bracket 314 is inserted and installed at the top of the bottom closing fixing bracket 313, and a fixing insert bracket 315 is inserted and installed at one end of the bottom limit double convex plate 219. The top of the fixing insert bracket 315 is fitted and connected with the side limit insert bracket 312 to achieve alignment restriction processing. The bottom double convex plate 219, the side limit insert bracket 312 and the fixed insert bracket 315 are all provided with a combination fixing hole 304 at one end. A prestressing member 305 is inserted and installed inside the combination fixing hole 304. The prestressing member 305 is fitted and connected with the upper chord reinforcing rib 302 and the lower chord reinforcing rib 303 to facilitate prestressing tension. A number of insert fixing rods 306 are welded at equal intervals to the bottom ends of the upper fixing plate 218 and the bottom limit double convex plate 219. The bottom ends of the insert fixing rods 306 are sleeved with multi-convex connecting positioning frames 307. The top end of the multi-convex connecting positioning frames 307 is in contact with the bottom end of the upper fixing plate 218 to ensure the stability of the alignment support and the contact restriction. The top end of the multi-convex connecting positioning frames 307 is in contact with the bottom end of the bottom limit double convex plate 219 to realize the alignment connection and the restriction and locking treatment. A hollow assembly block 308 is welded to the bottom of the multi-convex connection positioning frame 307 at the position corresponding to the insertion card fixing rod 306. The hollow assembly block 308 is fitted and connected to the insertion card fixing rod 306 to achieve combination restriction. A fixing pin 309 is inserted and installed between the hollow assembly block 308 and the insertion card fixing rod 306. The multi-convex connecting positioning bracket 307 has equidistant combination connecting holes 310 at one end.

[0023] The working principle and usage process of this invention: When constructing the upper chord of the roof arch of the granary, workers splice and combine multiple sets of scaffolding according to the load-bearing requirements to erect a full-span scaffolding as a bottom formwork support. After the scaffolding is erected, workers attach the multi-convex connection positioning frame 307 to the scaffolding and insert the fixing pin 309 into the inner side of the combination connection hole 310 to achieve the connection between the multi-convex connection positioning frame 307 and the scaffolding. Then, the bottom closed fixing frame 313 with the insert fixing rod 306 and the bottom limit double convex plate 219 are inserted into the top of the multi-convex connection positioning frame 307 in sequence, and the fixing pin 309 is inserted between the insert fixing rod 306 and the hollow combination block 308 to achieve the combination connection between the multi-convex connection positioning frame 307, the bottom limit double convex plate 219 and the bottom closed fixing frame 313, and the multiple sets of bottom limit double convex plates 219 are snapped and connected to the bottom closed fixing frames 313 at both ends. After the engagement is complete, multiple upper insert fixing plates 218 are placed at the top of the bottom limit double convex plate 219 and the bottom closing fixing frame 313. After placement, the fixing insert bracket 315 is inserted into one end of the bottom closing fixing frame 313, and the side limit insert bracket 312 is inserted into the position of the bottom closing fixing frame 313 and the fixing insert bracket 315. Then, the sealing partition frame 314 is pressed in from top to bottom, realizing the connection of the side limit insert bracket 312, the bottom closing fixing frame 313, the sealing partition frame 314 and the fixing insert bracket 315 at both ends. After the assembly of the 15 components is completed, the workers use a nail gun to fix the edge limit insert bracket 312, bottom closing fixing bracket 313, sealing partition bracket 314, fixing insert bracket 315, bottom limit double convex plate 219 and upper insert fixing plate 218 with steel nails to achieve the formwork installation of the lower chord plate of the grain silo arch plate. After the installation is completed, the prestressed component 305 is inserted into the inside of the combination fixing hole 304 located at the position of the edge limit insert bracket 312 and bottom closing fixing bracket 313. After the prestressed member 305 is installed, the workers pull the lower chord reinforcing bar 303 so that it passes through the prestressed member 305. After the lower chord reinforcing bar 303 is installed, the workers lay non-prestressed tendons according to the load-bearing requirements of the arch slab. After the lower chord reinforcing bars are laid, the prestressing tendons are tensioned using a reinforcing bar tensioning device. The prestressing tendons are tensioned in two stages. The first tensioning is about 40% of the tension force, which is carried out after the prestressed and non-prestressed tendons in the bottom slab are laid. The second prestressing tendon tensioning is carried out after the upper chord formwork is completed and before the reinforcing bars are tied and the concrete is poured. After the support formwork of the lower rotating plate is installed, the vertical precast partition 1 is hoisted to the top of multiple bottom limit double convex plates 219 by external hoisting equipment, and placed on the top of the lower chord reinforcing rib 303. The workers use bending equipment to bend the double limit support rib 301 and tie and fix the double limit support rib 301 and the lower chord reinforcing rib 303 to realize the installation of the vertical precast partition 1. Multiple flat bracing upper sealing plates 201 are placed on the top of the bottom limit double convex plates 219, and the flat bracing upper sealing plates 201 are snapped together with the upper insert fixing plate 218. The bearing fixing plate 202 is glued to the connection position between the flat bracing upper sealing plate 201 and the vertical precast partition 1. Then, the manual hydraulic cylinder 203 is snapped to the top of the bearing fixing plate 202, and the upper inclined alignment plate 213 is sleeved onto the side end of the double threaded fixing rod 211. The locking nut 212 is combined with the double threaded fixing rod 211 by the thread, thereby snapping and restricting the upper inclined alignment plate 213. After the upper inclined alignment plate 213 is fixed, the inclined double card holder 205 and the double protruding insert block 215 are placed inside the double card fixing plate 204, and the combination pin 220 is used to engage and connect the inclined double card holder 205 with the double card fixing plate 204 and the double protruding insert block 215 with the double card fixing plate 204. After engagement, the operator operates the manual hydraulic cylinder 203 to push the inclined double card holder 205 and the double protruding insert block 215 to rise and insert them into the bottom position of the upper inclined alignment plate 213 to achieve the locking restriction of the upper inclined alignment plate 213. After the locking is completed, the operator presses the upper protruding limiting plate 217 onto the top of the upper insert fixing plate 218 and the bottom limiting double protruding plate 219. After assembly, place the lower sealing plate 214 on the top of the upper inclined alignment plate 213 in sequence. After placement, insert the double threaded positioning rod 207 between the flat support traction frame 206 and the inclined double clamping frame 205. Then, attach the multi-convex clamping plate 216 and the double-convex side baffle 208 to the side of the double threaded positioning rod 207 one by one. At this time, the threaded locking nut 212 is combined with the double threaded positioning rod 207 to realize the combination of the multi-convex clamping plate 216 with the upper convex limiting plate 217 and the flat support traction frame 206, and the combination of the double-convex side baffle 208 with the flat support traction frame 206, thus realizing the combined connection of the lower sealing plate 214, the double-convex side baffle 208 and the multi-convex clamping plate 216. After assembly, the upper chord reinforcing rib 302 is placed at the position of the double-limited support rib 301 at the top of the vertical precast partition 1, and it is passed through the prestressed member 305 located at the position of the bottom closed fixing frame 313. The upper chord reinforcing rib 302 is prestressed and pulled. Then, the double-limited support rib 301 is bent again using a bending device, and the double-limited support rib 301 and the upper chord reinforcing rib 302 are tied together. Then, non-prestressed ribs are laid and tied together. After binding, the upper sealing fixing plate 210 is sequentially snapped between the double-convex side baffle 208 and the multi-convex positioning plate 216, and the elastic pressure sealing strip 209 is placed between the two sets of double-convex side baffles 208 and multi-convex positioning plates 216. The double threaded positioning rod 207 is passed through the double-convex side baffle 208 and the elastic pressure sealing strip 209, and the multi-convex positioning plate 216 and the elastic pressure sealing strip 209. Then, the double threaded positioning rod 207 is combined with the pressure sealing nut 212 to press and clamp the double-convex side baffle 208 and the upper sealing fixing plate 210, and the multi-convex positioning plate 216 and the upper sealing fixing plate 210, thereby realizing the installation and assembly of the support formwork for the upper chord plate of the grain silo arch plate. After the assembly is completed, concrete is poured using concrete pouring equipment. After the pouring and curing are completed, the formwork is removed, and then curing is carried out according to the curing requirements, thereby realizing the construction of the grain silo arch plate.

[0024] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A formwork support and fixing system for the arched roof of a grain warehouse, comprising vertical precast partitions (1), characterized in that: The vertical prefabricated partition (1) is provided with a multi-braced clamp assembly (2) on its side. The multi-bracing clamp assembly (2) includes a flat bracing upper sealing plate (201); The vertical prefabricated partition (1) is provided with flat support upper sealing plates (201) at both ends, and a load-bearing fixing plate (202) is bonded between the top of the flat support upper sealing plate (201) and the bottom of the inner side of the vertical prefabricated partition (1). The top of the bearing fixing plate (202) is fitted with a manual hydraulic cylinder (203), and the top of the manual hydraulic cylinder (203) is fitted with a double fixing plate (204). One end of the double card fixing plate (204) is equipped with a diagonal double card frame (205) by a combination pin (220), and both ends of the diagonal double card frame (205) are sleeved with a flat bracing tie frame (206). One end of the flat support traction frame (206) is symmetrically connected with a double threaded positioning rod (207), and a double convex side baffle (208) is sleeved on the outer end of the double threaded positioning rod (207) at the position corresponding to the flat support traction frame (206). One end of the double convex side baffle (208) is fitted with an elastic sealing strip (209) through a double threaded positioning rod (207), and an upper sealing fixing plate (210) is inserted and installed between the two double convex side baffles (208).

2. The formwork support and fixing system for the chord plate roof of the granary arch as described in claim 1, characterized in that, One end of the flat brace upper sealing plate (201) is attached to one end of the vertical prefabricated partition plate (1), the double threaded positioning rod (207) is installed through one end of the diagonal brace double card frame (205), and the bottom end of the elastic pressure strip (209) is attached to the top end of the upper sealing fixing plate (210).

3. The formwork support and fixing system for the chord plate roof of the granary arch as described in claim 1, characterized in that, The vertical prefabricated partition (1) has double threaded fixing rods (211) connected through both sides at one end. The double threaded positioning rod (207) and the double threaded fixing rod (211) are both connected to the outer ends of the double threaded positioning rod (207) and the double threaded fixing rod (211) by threaded connection of compression nuts (212). Both ends of the double threaded fixing rod (211) are fitted with upper inclined alignment plates (213), and the two double convex side baffles (208) are engaged with lower sealing fixing plates (214) at the positions corresponding to the upper inclined alignment plates (213). The longitudinal sections of the upper sealing plate (210) and the lower sealing plate (214) are arc-shaped, and the top of the upper inclined alignment plate (213) is attached to the bottom of the lower sealing plate (214).

4. The formwork support and fixing system for the chord plate roof of the granary arch as described in claim 3, characterized in that, Two of the upper inclined alignment plates (213) are fitted with double protruding insert blocks (215) at their bottom ends. One end of each of the multiple double-convex side baffles (208) is inserted into a multi-convex positioning plate (216), and one end of the multi-convex positioning plate (216) is sleeved with an upper convex limiting plate (217) through a double threaded positioning rod (207). The upper convex limiting plate (217) and the bearing fixing plate (202) are inserted and installed with an upper insert fixing plate (218) at the bottom end, and the lower limit double convex plate (219) is provided at the bottom end of the upper insert fixing plate (218). One end of the upper inclined alignment plate (213) is attached to one end of the vertical prefabricated partition plate (1), and the inclined double bracket (205) is inserted and installed at the bottom end of the upper inclined alignment plate (213).

5. The formwork support and fixing system for the chord plate roof of the granary arch as described in claim 4, characterized in that, One end of the multi-convex positioning plate (216) is engaged with one end of the upper sealing plate (210), and one end of the multi-convex positioning plate (216) is engaged with one end of the lower sealing plate (214).

6. The formwork support and fixing system for the chord plate roof of the granary arch as described in claim 4, characterized in that, There are four multi-convex positioning plates (216), and the longitudinal section of the upper convex limiting plate (217) is L-shaped, and there are two upper convex limiting plates (217).

7. The formwork support and fixing system for the chord plate roof of the granary arch as described in claim 6, characterized in that, The vertical prefabricated partition (1) is provided with a combined component (3) on its side end; The combined component (3) includes a double-limited support rib (301); The top and bottom ends of the vertical prefabricated partition (1) are each equidistantly embedded with a number of double-limited support ribs (301), and the side ends of the double-limited support ribs (301) located at the top of the vertical prefabricated partition (1) are equipped with upper chord reinforcing ribs (302). A lower chord reinforcing bar (303) is installed on the side end of the double-limited support bar (301) located at the bottom end of the vertical prefabricated partition (1). The top of the upper sealing plate (210) is fitted with a closed metal plate (311), and one end of the bottom limit double convex plate (219) is inserted with a side limit insert bracket (312). The bottom end of the side limit insert bracket (312) is provided with a bottom closing fixing bracket (313). The bottom closing fixing frame (313) has a sealing partition frame (314) inserted and installed at the top, and a fixing insert bracket (315) is inserted and installed at one end of the bottom limit double convex plate (219). The bottom double convex plate (219), the side limit insert bracket (312) and the fixed insert bracket (315) are all provided with a combined fixing hole (304) at one end, and a prestressed component (305) is inserted and installed inside the combined fixing hole (304).

8. The formwork support and fixing system for the chord plate roof of the granary arch as described in claim 7, characterized in that, The upper insert fixing plate (218) and the bottom limit double convex plate (219) are welded with a number of insert fixing rods (306) at equal intervals at their bottom ends, and the bottom ends of the number of insert fixing rods (306) are sleeved with multi-convex connecting positioning frames (307). The longitudinal section of the upper chord reinforcing rib (302) is arc-shaped. The upper chord reinforcing rib (302) is placed between the upper sealing plate (210) and the lower sealing plate (214). The lower chord reinforcing rib (303) is placed between the flat bracing upper sealing plate (201) and the upper inserting fixing plate (218).

9. The formwork support and fixing system for the chord plate roof of the granary arch as described in claim 8, characterized in that, A hollow assembly block (308) is welded to the bottom of the multi-convex connection positioning frame (307) at the position corresponding to the insertion card fixing rod (306), and a fixing pin (309) is inserted and installed between the hollow assembly block (308) and the insertion card fixing rod (306). The multi-convex connecting positioning frame (307) has a combination connecting hole (310) equidistantly opened at one end; The prestressed member (305) is fitted and connected to the upper chord reinforcing rib (302) and the lower chord reinforcing rib (303), and the top of the multi-convex connection positioning frame (307) is attached to the bottom of the upper insertion fixing plate (218).

10. The formwork support and fixing system for the chord plate roof of the granary arch as described in claim 9, characterized in that, The top of the multi-convex connecting positioning frame (307) is attached to the bottom of the bottom limit double convex plate (219), the hollow combination block (308) is fitted and connected to the card fixing rod (306), and the top of the fixed card holder (315) is fitted and connected to the side limit card holder (312).

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