CN112443188A - Large-diameter squat silo top umbrella-shaped truss support system and use method thereof - Google Patents
Large-diameter squat silo top umbrella-shaped truss support system and use method thereof Download PDFInfo
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- CN112443188A CN112443188A CN202011209958.3A CN202011209958A CN112443188A CN 112443188 A CN112443188 A CN 112443188A CN 202011209958 A CN202011209958 A CN 202011209958A CN 112443188 A CN112443188 A CN 112443188A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
- E04H7/22—Containers for fluent solids, e.g. silos, bunkers; Supports therefor
- E04H7/24—Constructions, with or without perforated walls, depending on the use of specified materials
- E04H7/26—Constructions, with or without perforated walls, depending on the use of specified materials mainly of concrete, e.g. reinforced concrete or other stone-like materials
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
Abstract
The invention provides a large-diameter squat round silo roof umbrella-shaped truss support system and a use method thereof, wherein the large-diameter squat round silo roof umbrella-shaped truss support system comprises a central cylinder base, a central cylinder standard knot, a central column head, a truss beam and a silo wall steel bracket; a central cylinder standard knot is arranged on the central cylinder base; the standard knot of the central cylinder is provided with a central column head; one end of the truss girder is connected with the central column head, and the other end of the truss girder is connected with the wall of the silo through a steel bracket of the silo wall. The center cylinder base is provided with a horizontal measuring device, the level of the center cylinder base is adjusted by matching with a jack arranged below the horizontal measuring device, and a base plate is used for padding after the adjustment is finished; the standard joint of the central cylinder is assembled in a socket and spigot manner, the petal-type control pipe pins are connected with the control holes and are fixed by special pin clamps, and compared with the traditional bolt connection, the mounting efficiency of workers is greatly improved; the parts of the invention are movably connected, so that the invention is convenient to install and disassemble, can be repeatedly used, saves the production cost and has strong practicability.
Description
Technical Field
The invention belongs to the technical field of construction machinery, and particularly relates to a large-diameter squat silo roof umbrella-shaped truss supporting system and a using method thereof.
Background
The silo is a main silo type of modern grain storage, but is limited by national technical standards and influenced by late industry starting, a conical silo top supporting system of the silo is still insufficient to a great extent, a full-silo scaffold needs to be erected in a traditional supporting system, and the defects that the full-silo scaffold consumes more steel pipe supporting materials and the strength of workers is high are overcome; the silo is high in height, so that the construction time is long and the construction difficulty is high.
Patent document CN2011104370856 provides a squat silo roof steel truss supporting device, which solves the problem that a full scaffold is also erected in the construction of the existing reinforced concrete silo roof, but in the technical scheme, no dismantling measure is provided after the construction of the silo roof is completed, and the whole dismantling is difficult.
Patent document CN2020105711861 provides a steel pipe truss support system for a silo roof and a supporting method thereof, which solve the problems that the construction mode of the existing silo roof construction consumes more materials such as steel pipes, and the erection consumes time and labor, but a spot welding mode is required, and after the silo wall is poured, the steel pipe truss is welded and fixed on an embedded part in the side wall, so that the risks of high-altitude fire and personnel operation are increased.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the large-diameter shallow round bin top umbrella-shaped truss support system which is simple in structure, stable, reliable, economical, efficient, material-saving, convenient to assemble and disassemble and repeatable and the use method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
an umbrella-shaped truss supporting system for a large-diameter squat round bin top comprises a central cylinder base, a central cylinder standard knot, a central column head, a truss beam and a bin wall steel corbel;
a central cylinder standard knot is arranged on the central cylinder base; the standard knot of the central cylinder is provided with a central column head; one end of the truss girder is connected with the central column head, and the other end of the truss girder is connected with the wall of the silo through a steel bracket of the silo wall.
The central cylinder base comprises a base underframe, a supporting steel pipe and a base central cylinder; the base underframe is connected with the base central cylinder; one end of the supporting steel pipe is connected with the base underframe, and the other end of the supporting steel pipe is connected with the wall of the central cylinder of the base.
And one end of each central cylinder standard joint is provided with a socket control pipe pin, the other end of each central cylinder standard joint is provided with a pipe pin control hole, the socket control pipe pins of the adjacent central cylinder standard joints are matched and connected with the pipe pin control holes, and the adjacent central cylinder standard joints are locked through pin clamps.
The central column head comprises a steel column, a circular bracket beam, a steel bracket, a positioning disc and a connecting lug plate; the outer wall of the steel column is provided with a steel bracket, the circular bracket beam is connected with the steel column through the steel bracket, and the circular bracket beam forms a circular ring on the periphery of the steel column; and a positioning disc is arranged at the top end of the steel column, and a connecting lug plate is arranged on the positioning disc.
The truss girder comprises a truss girder end and a truss girder standard section; after the adjacent standard sections of the truss girder are connected, truss girder end heads are respectively arranged at the two ends of the standard sections; the truss girder end at one end of the truss girder is connected with the connecting lug plate on the central column head.
The bin wall steel bracket comprises a positioning steel plate, a steel inner-threaded blind tenon, a fixing bolt and a steel bracket; the positioning steel plate is provided with a steel inner-threaded mortise, the steel bracket is provided with a hole corresponding to the steel inner-threaded mortise, the steel inner-threaded mortise penetrates through the hole in the steel bracket, and the fixing bolt is in threaded connection with the steel inner-threaded mortise; and the truss girder end at the other end of the truss girder is connected with the steel bracket on the wall.
The wall of the base center cylinder is provided with a horizontal detection device.
A use method of a large-diameter squat silo top umbrella-shaped truss support system comprises the following steps:
firstly, pre-embedding steel inner screw mortises and positioning steel plates of a bin wall steel corbel in a slip form construction process, controlling the steel inner screw mortises and the positioning steel plates to be at a uniform elevation, and installing the steel corbel by using fixing bolts after slip form construction is finished;
secondly, preparing the foundation of the central cylinder base for paying off, excavating, binding reinforcing steel bars, erecting a template and pouring concrete according to the field control line;
thirdly, hoisting the base on the basis of the central cylinder base, positioning the base chassis, the base central cylinder and the support steel pipe in place in sequence by using a tower crane, and measuring the verticality of the base central cylinder after the positioning is finished; if deviation exists, the jack is placed below the top plate of the central cylinder base, adjustment is carried out until the requirement is met, and the jack is padded firmly by a backing plate;
fourthly, after the central cylinder base is installed, hoisting the central cylinder standard knot; after the standard section of the central cylinder is in place, fixing the standard section by using a pin clamp;
fifthly, assembling a central column head, sequentially mounting and fixing steel brackets on the steel columns, and connecting and fixing the steel columns and the steel brackets by adopting high-strength bolts; then, mounting a circular bracket beam, adjusting the elevation of the steel bracket to meet the construction requirement, fixing, and hoisting after the mounting is finished; installing a positioning disc at the top end of the steel column after hoisting is finished, and fixing by using bolts; positioning and mounting the connecting ear plates on a positioning disc, and sequentially mounting adjustable supporting rods;
sixthly, assembling the truss girder, wherein the truss girder comprises truss girder ends and truss girder standard sections, the plurality of truss girder standard sections are sequentially assembled and connected, and the truss girder ends are respectively connected at two ends of the truss girder after the required diameter requirement is met;
hoisting the truss girder, respectively placing the truss girder ends at two ends of the spliced truss girder on a circular bracket girder and a bulkhead steel bracket of a central column head, and adjusting the truss girder ends to proper positions by using adjustable support rods;
and eighthly, after the construction of the warehouse top is finished, sequentially detaching all components of the umbrella-shaped truss supporting system of the large-diameter shallow round warehouse top by using a winch, and transporting the components to the next place for construction.
In the third step, a base underframe is placed at a specified position by using a tower crane, a base center cylinder is hoisted and preliminarily fixed with the base underframe, eight support steel pipes are uniformly distributed around the base underframe, a high-strength bolt is used for preliminary fixing, then a jack is placed below a top plate of a center cylinder base, after the completion, the verticality of the base center cylinder is measured by using a horizontal detection device on the base center cylinder, a bubble tube is observed, and the jack is used for adjusting the base center cylinder to be centered by bubbles; pulling the pull ring to rotate by 90 degrees, and if the bubble of the bubble vial is still centered, indicating that the bubble vial is leveled; if the deviation exists, the jack is continuously used for adjustment; and after the requirements are met, the high-strength bolt is screwed down and is tamped by a backing plate.
And in the fourth step, a pin clamp hole is formed in the joint of the standard sections of the central cylinder, after the adjacent standard sections of the central cylinder are connected, the pin clamp is inserted into the pin clamp hole from bottom to top, and then the end part of the pin clamp is rotated to form a T-shaped pin clamp.
Compared with the prior art, the invention has the beneficial effects that:
(1) the base of the central cylinder is provided with a level measuring device, the level of the central cylinder is adjusted by matching with a jack arranged below the level measuring device, the central cylinder is padded by using a backing plate after the adjustment is finished, and the jack can be detached to the next position for adjustment.
(2) The standard joint of the central cylinder is assembled in a socket joint mode, the petal-type control pipe pins are connected with the control holes and fixed by special pin clamps, and compared with the traditional bolt connection mode, the mounting efficiency of workers is greatly improved.
(3) The adjustable supporting rod is arranged above the central column head, and the length of the adjustable supporting rod in lap joint with the bracket on the wall of the storage bin can be adjusted according to the insufficient length of the bracket in the process of installing the truss girder.
(4) According to the invention, the steel corbel of the wall is fixed by the bolts after the steel inner screw mortises are embedded, the steel corbel can be dismantled to the next part for construction after the construction is finished, and the holes are blocked by the blocking bolts after the steel corbel is dismantled, so that the problem that the traditional reserved holes are difficult to block in the later period is solved.
(5) The parts of the invention are movably connected, so that the invention is convenient to install and disassemble, can be repeatedly used, saves the production cost and has strong practicability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the central cartridge base of the present invention;
FIG. 3 is a schematic view of the construction of the center barrel standard knot of the present invention;
FIG. 4 is a schematic structural view of the pin card of the present invention;
FIG. 5 is a schematic view of the structure of the central column head of the present invention;
FIG. 6 is a schematic structural view of a truss beam of the present invention;
FIG. 7 is a schematic structural view of a truss girder end of the present invention;
FIG. 8 is a schematic structural view of a standard section of a truss girder according to the present invention;
FIG. 9 is a schematic structural view of a steel corbel according to the present invention;
wherein, 1-central cylinder base; 1.1-base chassis; 1.2-top plate; 1.3-high strength bolt; 1.4-supporting the steel pipe; 1.5-level detection means; 1.5.1-bubble vial; 1.5.2-tab; 1.6-base center cylinder; 2-standard section of central cylinder; 2.1-spigot-and-socket control pipe pin; 2.2-standard joint cylinder wall; 2.3-selling cards; 2.4-control hole of pipe pin; 3-central column cap; 3.1-steel column; 3.2-round bracket beam; 3.3-steel corbel; 3.4-positioning the disc; 3.5-connecting ear plate; 3.6-adjustable support bar; 4-truss girder; 4.1 — truss beam end; 4.2-standard section of truss girder; 5-bin wall steel corbels; 5.1 positioning a steel plate; 5.2-inner screw mortise and tenon made of steel; 5.3-fixing the bolt; 5.4-steel corbel; 5.5-blocking the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
Example 1:
as shown in the attached figure 1, the umbrella-shaped truss supporting system for the large-diameter squat round silo top comprises a central cylinder base 1, a central cylinder standard knot 2, a central column head 3, a truss girder 4 and a silo wall steel corbel 5; a central cylinder standard joint 2 is arranged on the central cylinder base 1; the central cylinder standard knot 2 is provided with a central column head 3; one end of the truss girder 4 is connected with the central column head 3, and the other end is connected with the wall through a wall steel corbel 5.
As shown in fig. 2, the central cylinder base 1 comprises a base underframe 1.1, a support steel pipe 1.4 and a base central cylinder 1.6; the base underframe 1.1 is connected with the base center cylinder 1.6, the base underframe 1.1 is in a cross shape, and the base center cylinder 1.6 is positioned at the center of the base underframe 1.1; one end of the base center cylinder 1.6 is connected with the base underframe 1.1 through a bolt, and the inner wall of the other end of the base center cylinder is provided with a pipe pin control hole 2.4; one end of the supporting steel pipe 1.4 is connected with the base underframe 1.1, and the other end is connected with the wall of the base central cylinder 1.6.
As shown in the attached figures 3 and 4, one end of the central cylinder standard joint 2 is provided with a socket control pipe pin 2.1, the other end of the central cylinder standard joint is provided with a pipe pin control hole 2.4, the socket control pipe pin 2.1 of the adjacent central cylinder standard joint 2 is matched and connected with the pipe pin control hole 2.4, and the adjacent central cylinder standard joint 2 is locked through a pin clamp 2.3, so that the assembly of the central cylinder standard joint 2 is realized, and different heights can be assembled according to requirements. The end part of the pin clamp 2.3 is provided with a movable rod, and the center of the movable rod can rotate around the end part of the pin clamp 2.3, so that the pin clamp 2.3 can rotate from a straight shape to a T shape.
As shown in fig. 5, the central column head 3 comprises a steel column 3.1, a circular bracket beam 3.2, a steel bracket 3.3, a positioning disc 3.4 and a connecting lug plate 3.5; the outer wall of the steel column 3.1 is provided with a steel bracket 3.3, the circular bracket beam 3.2 is connected with the steel column 3.1 through the steel bracket 3.3, and the circular bracket beam 3.2 forms a circular ring at the periphery of the steel column 3.1; the top of steel column 3.1 is equipped with positioning disc 3.4, is equipped with on positioning disc 3.4 and connects otic placode 3.5.
As shown in fig. 6, 7 and 8, the truss girder 4 comprises truss girder end heads 4.1 and truss girder standard joints 4.2; after the adjacent standard sections 4.2 of the truss girder are connected, truss girder end heads 4.1 are respectively arranged at the two ends of the standard sections; the truss girder end 4.1 at one end of the truss girder 4 is connected with the connecting ear plate 3.5 on the central column head 3.
As shown in fig. 9, the bin wall steel corbel 5 comprises a positioning steel plate 5.1, a steel inner screw blind tenon 5.2, a fixing bolt 5.3 and a steel corbel 5.4; the positioning steel plate 5.1 is provided with a steel inner-threaded blind tenon 5.2, the steel bracket 5.4 is provided with a hole corresponding to the steel inner-threaded blind tenon 5.2, the steel inner-threaded blind tenon 5.2 penetrates through the hole on the steel bracket 5.4, and the fixing bolt 5.3 is in threaded connection with the steel inner-threaded blind tenon 5.2; the truss girder end 4.1 at the other end of the truss girder 4 is connected with a steel corbel 5.4 on the steel corbel 5 of the bulkhead.
The wall of base center section of thick bamboo 1.6 is equipped with level detection device 1.5.
Example 2:
a use method of a large-diameter squat silo top umbrella-shaped truss support system comprises the following steps:
firstly, pre-burying a steel inner screw blind tenon 5.2 and a positioning steel plate 5.1 of a bin wall steel corbel 5 in a slip form construction process, controlling the steel inner screw blind tenon and the positioning steel plate to be at a uniform elevation, and installing the steel corbel 5.4 by using a fixing bolt 5.3 after the slip form is finished;
secondly, preparing the foundation of the central cylinder base 1 for paying off, excavating, binding reinforcing steel bars, erecting a template and pouring concrete according to the field control line;
thirdly, hoisting the base on the basis of the central cylinder base 1, and sequentially placing a base underframe 1.1, a base central cylinder 1.6 and a support steel pipe 1.4 in place by using a tower crane to measure the verticality of the base central cylinder 1.6 after the completion; if deviation exists, the jack is placed below the top plate 1.2 of the central cylinder base 1, adjustment is carried out until the requirement is met, and the jack is tamped by a backing plate;
fourthly, after the central cylinder base 1 is installed, hoisting the central cylinder standard knot 2; after the standard section 2 of the central cylinder is in place, fixing by using a pin clamp 2.3;
fifthly, assembling the central column head 3, sequentially installing and fixing steel brackets 3.3 on the steel columns 3.1, and connecting and fixing the steel columns 3.1 and the steel brackets 3.3 by adopting high-strength bolts; then, a circular bracket beam 3.2 is installed, the elevation of the steel bracket 3.3 is adjusted to meet the construction requirement and fixed, and the steel bracket is hoisted after the installation is finished; installing a positioning disc 3.4 at the top end of the steel column 3.1 after the hoisting is finished, and fixing by using a bolt; positioning and mounting the connecting lug plate 3.5 on a positioning disc 3.4, and sequentially mounting adjustable supporting rods 3.6;
sixthly, assembling the truss girder 4, wherein the truss girder 4 comprises truss girder end heads 4.1 and truss girder standard sections 4.2, the plurality of truss girder standard sections 4.2 are sequentially assembled and connected, and after the required diameter requirement is met, the truss girder end heads 4.1 are respectively connected to the two ends of the truss girder standard sections;
seventhly, hoisting the truss girder 4, respectively placing truss girder ends 4.1 at two ends of the spliced truss girder 4 on a round bracket girder 3.2 of the central column cap 3 and a bulkhead steel bracket 5, and adjusting to proper positions by using adjustable support rods 3.6;
and eighthly, after the construction of the warehouse top is finished, sequentially detaching all components of the umbrella-shaped truss supporting system of the large-diameter shallow round warehouse top by using a winch, and transporting the components to the next place for construction.
Thirdly, placing the base underframe 1.1 at a specified position by using a tower crane, primarily fixing a hoisting base center cylinder 1.6 and the base underframe 1.1, uniformly distributing eight supporting steel pipes 1.4 around, primarily fixing by using high-strength bolts 1.3, then placing a jack below a top plate 1.2 of the center cylinder base 1, after finishing, measuring the verticality of the base center cylinder 1.6 by using a horizontal detection device 1.5 on the base center cylinder 1.6, observing a bubble tube 1.5.1, and adjusting to be centered by using the jack; pulling the pull ring 1.5.2 to rotate 90 degrees, and if the bubble of the bubble vial is still centered, indicating that the bubble vial is leveled; if the deviation exists, the jack is continuously used for adjustment; after meeting the requirements, the high-strength bolt 1.3 is screwed and tamped by a backing plate.
In the fourth step, a pin hole is arranged at the joint of the standard sections 2 of the central cylinder, after the adjacent standard sections 2 of the central cylinder are connected, the pin 2.3 is inserted into the pin hole from bottom to top, and then the end part of the pin is rotated to change the pin into a T-shaped pin.
Example 3:
the first step is as follows: when the sliding formwork construction reaches the pre-buried elevation of the bin wall steel corbel 5, pre-burying the steel inner screw blind tenon 5.2 and the positioning steel plate 5.1 which are welded together on the bin wall, and controlling the pre-buried elevation to be at a uniform elevation; one end of the steel inner screw tenon 5.2 protrudes out of the surface of the bin wall;
the second step is that: paying off, excavating, binding reinforcing steel bars, erecting a template and pouring concrete on the foundation of the central cylinder base 1 according to the field control line;
the third step: after the foundation of center tube base 1 is poured and is accomplished, hoist center tube base 1, use the tower crane to place base chassis 1.1 in the assigned position, then hoist and mount base center tube 1 and base chassis 1.1 carry out preliminary fixed, adopt bolted connection between base center tube 1 and the base chassis 1.1, with eight support steel pipe 1.4 evenly distributed around the section of thick bamboo wall of base center tube 1, use high strength bolt 1.3 to carry out preliminary fixed, support the other end of steel pipe 1.4 and be connected through high strength bolt 1.3 with base chassis 1.1.
A top plate 1.2 is arranged on the base underframe 1.1, and a jack is placed below the top plate 1.2 of the base underframe 1.1 of the central cylinder base 1; a horizontal detection device 1.5 is arranged on the base center cylinder 1.6, the horizontal detection device 1.5 comprises a bubble tube 1.5.1 and a pull ring 1.5.2, the horizontal detection device 1.5 can rotate along the cylinder wall of the base 1 of the center cylinder, the verticality of the base center cylinder 1.6 is measured by using the horizontal detection device 1.5 on the base center cylinder 1.6, the bubble tube 1.5.1 is observed, and the bubble tube is adjusted to be centered by using a jack; pulling the pull ring to rotate by 90 degrees, if the air bubbles in the bubble vial 1.5.1 are still centered, the central cylinder base 1 is leveled; if the deviation exists, the jack is continuously used for adjustment. The final state of levelling is that the bubble should remain centered regardless of which direction the ring pull 1.5.2 is turned. After meeting the requirements, the high-strength bolt 1.3 is screwed and fixed and is tamped by a backing plate.
The fourth step: and after the central cylinder base 1 is installed, hoisting the central cylinder standard knot 2. One end of the central cylinder standard knot 2 is provided with a petal socket type control pipe pin 2.1, the other end is provided with a pipe pin control hole 2.4, an inserting type control pipe pin 2.1 of one central cylinder standard knot 2 is matched and connected with a pipe pin control hole 2.4 of the other central cylinder standard knot 2, perfect socket can be realized during hoisting, horizontal displacement of the central cylinder standard knot 2 is avoided, 4 pin clamping holes are formed in the connection position of the central cylinder standard knot 2, the pin clamps 2.3 are inserted into the pin clamping holes from bottom to top, then the end parts of the pin clamps 2.3 are rotated to be changed into T-shaped pin clamps, and accordingly 2 adjacent central cylinder standard knots 2 are fixed.
The top end of the central cylinder base 1 is provided with a petal socket control pipe pin 2.1 which is matched and connected with a pipe pin control hole 2.4 of the central cylinder standard knot 2.
The fifth step: and assembling a central column head 3, sequentially installing and fixing steel brackets 3.3 on the steel column 3.1, and connecting and fixing the steel column 3.1 and the steel brackets 3.3 by adopting high-strength bolts. Then, a round bracket beam 3.2 is installed, the elevation of the steel bracket 3.3 is adjusted to meet the construction requirement and fixed, and the steel bracket is hoisted after the installation is finished. And installing a positioning disc 3.4 at the top end of the steel column 3.1 after the hoisting is finished, and fixing by using bolts. 360-degree scale marks are carved on the upper portion of the positioning disc 3.4, the connecting lug plate 3.5 is positioned and installed on the positioning disc 3.4, the adjustable supporting rods 3.6 are installed in sequence, and the uniform stress of the truss girder 4 on the circular bracket girder 3.2 is effectively guaranteed. The adjusting support rods 3.6 are used for adjusting the angles of the adjacent truss girders 4 on the circular bracket girders 3.2, so that the stress on the top of the silo is uniform.
And a sixth step: assemble truss girder 4, truss girder 4 includes truss girder end 4.1, truss girder standard festival 4.2, and a plurality of truss girder standard festival 4.2 are assembled in proper order and are connected, and the junction all adopts standard round pin hub connection, and convenient and fast can assemble according to different storehouse body diameter sizes to satisfy the demand of different projects.
The seventh step: a steel bracket 54 is arranged on the steel inner screw mortise 52 embedded in the bin wall, the prefabricated steel bracket 54 is arranged on the bin wall by using a fixing bolt 5.3, and a special groove on the steel bracket 5.4 can effectively ensure that the truss girder 4 does not generate lateral displacement.
Eighth step: and (3) hoisting the truss girder 4, respectively placing truss girder ends 4.1 at two ends of the assembled truss girder 4 on a round bracket girder 3.2 of the central column head 3 and a bulkhead steel bracket 5, and adjusting to a proper position by using an adjustable support rod 3.6.
The ninth step: after the construction of the bin top is finished, a winch is used for dismantling the truss girder 4, the bin wall steel corbel 5, the central column head 3, the central cylinder standard knot 2 and the central cylinder base 1 in sequence and transporting the materials to the next place for construction.
The tenth step: and (3) plugging the internal thread hole of the steel internal screw blind tenon 5.2 of the bin wall by using a plugging bolt 5.5. The hollow hole of the steel inner screw blind tenon 5.2 is plugged by adopting the plug bolt 5.5 and the inner screw thread of the steel inner screw blind tenon 5.2 in a matching way, thereby ensuring the installation quality. In order to ensure the stability of the truss girder, 4 steel inner-threaded tenons 5.2 are arranged on the positioning steel plate, and the steel inner-threaded tenons 5.2 are uniformly fixed on the positioning steel plate; the number of the mounting bolts 3 and the plugging bolts 5 and the number of the steel inner screw blind tenons 5.2 are 4.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a major diameter squat silo top umbrella-shaped truss support system which characterized in that: the device comprises a central cylinder base (1), a central cylinder standard knot (2), a central column head (3), a truss girder (4) and a bin wall steel corbel (5);
a central cylinder standard knot (2) is arranged on the central cylinder base (1); the central cylinder standard knot (2) is provided with a central column cap (3); one end of the truss girder (4) is connected with the central column head (3), and the other end of the truss girder is connected with the wall of the silo through a steel corbel (5).
2. The large-diameter squat silo roof umbrella-shaped truss support system of claim 1, wherein: the central cylinder base (1) comprises a base underframe (1.1), a support steel pipe (1.4) and a base central cylinder (1.6); the base underframe (1.1) is connected with the base central cylinder (1.6); one end of the supporting steel pipe (1.4) is connected with the base underframe (1.1), and the other end of the supporting steel pipe is connected with the cylinder wall of the base center cylinder (1.6).
3. The large-diameter squat silo roof umbrella-shaped truss support system of claim 2, wherein: one end of the central cylinder standard joint (2) is provided with a socket control pipe pin (2.1), the other end of the central cylinder standard joint is provided with a pipe pin control hole (2.4), the socket control pipe pin (2.1) of the adjacent central cylinder standard joint (2) is matched and connected with the pipe pin control hole (2.4), and the adjacent central cylinder standard joint (2) is locked through a pin clamp (2.3).
4. The large-diameter squat silo roof umbrella-shaped truss support system of any one of claims 1 to 3, wherein: the central column head (3) comprises a steel column (3.1), a circular bracket beam (3.2), a steel bracket (3.3), a positioning disc (3.4) and a connecting lug plate (3.5); the outer wall of the steel column (3.1) is provided with a steel corbel (3.3), the circular corbel beam (3.2) is connected with the steel column (3.1) through the steel corbel (3.3), and the circular corbel beam (3.2) forms a circular ring on the periphery of the steel column (3.1); the top end of the steel column (3.1) is provided with a positioning disc (3.4), and the positioning disc (3.4) is provided with a connecting lug plate (3.5).
5. The large-diameter squat silo roof umbrella-shaped truss support system of claim 4, wherein: the truss girder (4) comprises a truss girder end (4.1) and a truss girder standard section (4.2); after the adjacent standard sections (4.2) of the truss girder are connected, truss girder end heads (4.1) are respectively arranged at the two ends of the standard sections; the truss girder end head (4.1) at one end of the truss girder (4) is connected with the connecting lug plate (3.5) on the central column head (3).
6. The large-diameter squat silo roof umbrella-shaped truss support system of claim 5, wherein: the bin wall steel corbel (5) comprises a positioning steel plate (5.1), a steel inner-threaded blind tenon (5.2), a fixing bolt (5.3) and a steel corbel (5.4); the positioning steel plate (5.1) is provided with a steel inner-threaded blind tenon (5.2), the steel bracket (5.4) is provided with a hole corresponding to the steel inner-threaded blind tenon (5.2), the steel inner-threaded blind tenon (5.2) penetrates through the hole in the steel bracket (5.4), and the fixing bolt (5.3) is in threaded connection with the steel inner-threaded blind tenon (5.2); and a truss girder end (4.1) at the other end of the truss girder (4) is connected with a steel corbel (5.4) on the bulkhead steel corbel (5).
7. The large-diameter squat silo roof umbrella-shaped truss support system of claim 2, wherein: the wall of the base center cylinder (1.6) is provided with a horizontal detection device (1.5).
8. A use method of a large-diameter squat silo top umbrella-shaped truss support system is characterized by comprising the following steps: the method comprises the following steps:
firstly, pre-burying a steel inner screw blind tenon (5.2) and a positioning steel plate (5.1) of a bin wall steel corbel (5) in a slip form construction process, controlling the steel inner screw blind tenon and the positioning steel plate to be at a uniform elevation, and installing the steel corbel (5.4) by using a fixing bolt (5.3) after the slip form is finished;
secondly, preparing the foundation of the central cylinder base (1) for paying off, excavating, binding reinforcing steel bars, erecting a template and pouring concrete according to the field control line;
thirdly, hoisting the base on the basis of the central cylinder base (1), putting a base underframe (1.1), a base central cylinder (1.6) and a support steel pipe (1.4) in place in sequence by using a tower crane, and measuring the verticality of the base central cylinder (1.6) after the completion; if deviation exists, the jack is placed below a top plate (1.2) of the central cylinder base (1) and adjusted until the requirement is met, and the jack is tamped by a base plate;
fourthly, after the central cylinder base (1) is installed, hoisting the central cylinder standard knot (2); after the central cylinder standard knot (2) is in place, fixing by using a pin clamp (2.3);
fifthly, assembling a central column head (3), sequentially installing and fixing steel brackets (3.3) on the steel columns (3.1), and connecting and fixing the steel columns (3.1) and the steel brackets (3.3) by adopting high-strength bolts; then, a round bracket beam (3.2) is installed, the elevation of the steel bracket (3.3) is adjusted to meet the construction requirement and fixed, and hoisting is carried out after installation is finished; installing a positioning disc (3.4) at the top end of the steel column (3.1) after the hoisting is finished, and fixing by using bolts; positioning and mounting the connecting lug plate (3.5) on a positioning disc (3.4), and sequentially mounting adjustable supporting rods (3.6);
sixthly, assembling the truss girder (4), wherein the truss girder (4) comprises truss girder end heads (4.1) and truss girder standard sections (4.2), and the plurality of truss girder standard sections (4.2) are sequentially assembled and connected, and after the required diameter requirement is met, the two ends of the truss girder standard sections are respectively connected with the truss girder end heads (4.1);
seventhly, hoisting the truss girder (4), respectively placing truss girder ends (4.1) at two ends of the spliced truss girder (4) on a round bracket girder (3.2) of the central column cap (3) and a bulkhead steel bracket (5), and adjusting to a proper position by using an adjustable support rod (3.6);
and eighthly, after the construction of the warehouse top is finished, sequentially detaching all components of the umbrella-shaped truss supporting system of the large-diameter shallow round warehouse top by using a winch, and transporting the components to the next place for construction.
9. The use method of the large-diameter squat silo roof umbrella-shaped truss support system according to claim 8, characterized in that: in the third step, a base underframe (1.1) is placed at a specified position by using a tower crane, a hoisting base center cylinder (1.6) is preliminarily fixed with the base underframe (1.1), eight supporting steel pipes (1.4) are uniformly distributed around the hoisting base center cylinder, high-strength bolts (1.3) are preliminarily fixed, then a jack is placed below a top plate (1.2) of the center cylinder base (1), after the hoisting base center cylinder is completed, the verticality of the base center cylinder (1.6) is measured by using a horizontal detection device (1.5) on the base center cylinder (1.6), a bubble tube (1.5.1) is observed, and the hoisting base center cylinder is adjusted to be centered by using the jack; pulling the pull ring (1.5.2) to rotate by 90 degrees, if the bubble of the bubble vial is still centered, indicating that the bubble vial is leveled; if the deviation exists, the jack is continuously used for adjustment; after meeting the requirements, the high-strength bolt (1.3) is screwed and tamped by a backing plate.
10. The use method of the large-diameter squat silo roof umbrella-shaped truss support system according to claim 9, characterized in that: and in the fourth step, a pin clamping hole is formed in the joint of the central cylinder standard knot (2), after the adjacent central cylinder standard knots (2) are connected, the pin clamp (2.3) is inserted into the pin clamping hole from bottom to top, and then the end part of the pin clamp is rotated to change the pin clamp into a T-shaped pin clamp.
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