CN112854746A - Inverted hanging type supporting system for steel truss floor support plate and construction method - Google Patents
Inverted hanging type supporting system for steel truss floor support plate and construction method Download PDFInfo
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- CN112854746A CN112854746A CN202110041926.5A CN202110041926A CN112854746A CN 112854746 A CN112854746 A CN 112854746A CN 202110041926 A CN202110041926 A CN 202110041926A CN 112854746 A CN112854746 A CN 112854746A
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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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
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Abstract
The application belongs to the technical field of building construction, and particularly relates to a steel truss floor bearing plate inverted supporting system and a construction method, wherein the steel truss floor bearing plate inverted supporting system comprises an inverted bearing part detachably connected with an I-shaped steel beam, a steel truss with two ends respectively penetrating into the oppositely-placed inverted bearing part, a telescopic supporting part with the bottom end detachably connected with the steel truss, a template reinforcing bar abutted against the top end of the telescopic supporting part and a plurality of telescopic jacking parts arranged on the inner side of the I-shaped steel beam; the template reinforcing strip is abutted against the lower surface of the floor support plate. The application has the advantages of being convenient for construction, improving bearing capacity, turnover rate and supporting stability.
Description
Technical Field
The application relates to the technical field of building construction, in particular to a steel truss floor support plate inverted supporting system and a construction method.
Background
At present, a high-rise steel structure generally adopts a concrete-mixed floor slab structure, and a casting system for the high-rise steel structure concrete floor slab in the related technology is a floor support and a profiled steel sheet floor support plate support as a supporting system.
In view of the above-mentioned related art, the inventors consider that there are drawbacks of complicated construction, low load-bearing capacity, low turnover rate, and poor support stability.
Disclosure of Invention
In order to facilitate construction, improve bearing capacity, improve turnover rate and improve and support stability, this application provides a steel truss floor carrier plate hanging upside down formula braced system and construction method.
First aspect, the application provides a steel truss building carrier plate hanging-upside down formula braced system adopts following technical scheme:
a steel truss floor support plate inverted supporting system comprises an inverted bearing part detachably connected with an I-shaped steel beam, a steel truss with two ends respectively penetrating through the oppositely arranged inverted bearing part, a telescopic supporting part with the bottom end detachably connected with the steel truss, a template reinforcing strip abutted against the top end of the telescopic supporting part and a plurality of telescopic jacking parts arranged on the inner side of the I-shaped steel beam;
the template reinforcing strip is abutted against the lower surface of the floor support plate.
Through adopting above-mentioned technical scheme, the reverse hanging braced system that this application adopted reverse hanging bearing piece, steel truss, flexible support piece, template to reinforce the strip and the combination of flexible piece of propping to form, and the unit mount easy operation, and after having used up, it is convenient to dismantle, the reutilization of being convenient for to improve the turnover rate of material, reduce. Simultaneously, the flexible support piece is scalable to be adjusted, guarantees the arching value of floor carrier plate, improves support stability.
Optionally, the inverted bearing part comprises a buckle channel steel detachably connected with the i-shaped steel beam, two clamping plates vertically connected to the buckle channel steel, a bottom plate perpendicular to the clamping plates and connected with the clamping plates in a sliding manner, a screw rod vertically welded to the buckle channel steel, and a nut sleeved on the screw rod;
and when the nut moves upwards along the screw rod, the bottom plate is pushed to move upwards to push the steel truss upwards.
Through adopting above-mentioned technical scheme, the buckle channel-section steel is installed on the I-steel girder for whole braced system improves the pulling force, and the setting of splint and bottom plate is convenient for install the steel truss, only needs to aim at the screw rod with the truss just, upwards promotes the steel truss, the reuse with the nut screw up on the screw rod can, easy operation, and the position of steel truss is convenient for adjust to improve the support stability of this application.
Optionally, the clamping plate is provided with a long hole, and two opposite side surfaces of the bottom plate are provided with sliding blocks matched with the long hole.
Through adopting above-mentioned technical scheme, the slider can insert and establish in the slot hole to spacing to the bottom plate, prevent that the bottom plate from removing the in-process, the bottom plate is difficult for taking place to rotate when rebound, the installation and the adjustment of the steel truss of being convenient for.
Optionally, the steel truss support device further comprises a hinged connecting rod, two ends of the hinged connecting rod are respectively in rotating connection with the adjacent steel trusses, and a telescopic support piece is arranged on the hinged connecting rod.
Through adopting above-mentioned technical scheme, the articulated connecting rod on the flexible brace piece enables a plurality of steel trusses and links into a whole to support the building carrier plate with the form that the point supported through flexible brace piece, with the arch camber value of guaranteeing the building carrier plate, thereby improve support stability.
Optionally, a protective cushion block is arranged on the top end of the telescopic supporting piece on the hinged connecting rod.
Through adopting above-mentioned technical scheme, the protection cushion can play the guard action to the top of flexible support piece and the lower surface of building carrier plate, avoids being fish tail.
Optionally, the flexible support piece includes that the bottom can dismantle the sleeve of being connected with the steel truss, establish on the sleeve top and can wear to establish in the sleeve and with adjusting nut screw thread connection's support screw rod and establish the backup pad on support screw rod top with sleeve axis pivoted adjusting nut, bottom, the recess of placing template reinforcing strip is seted up to the top surface of backup pad.
Through adopting above-mentioned technical scheme, rotate adjusting nut, make the support screw rod rebound to accomplish the extension of flexible support piece, and then make the backup pad push up tightly to the floor carrier plate.
Optionally, the template reinforcing strip comprises a square steel pipe in clearance fit with the groove in the supporting plate and an elastic base plate connected with the top surface of the square steel pipe.
Through adopting above-mentioned technical scheme, square steel pipe compares in traditional square timber structural strength higher, is difficult for being damaged, therefore the material turnover rate is high, and the manifold cycles of being convenient for utilizes, but also can improve the support stability of this application, and the elastic backing plate can prevent that the lower surface of building carrier plate from being damaged.
Optionally, the telescopic jacking piece comprises a first pressing plate abutted against the bottom surface of the inner side of the I-shaped steel beam, a positive screw rod vertically connected to the first pressing plate, a pipe body with the bottom end in threaded connection with the positive screw rod, a negative screw rod in threaded connection with the top end of the pipe body, and a channel steel bracket arranged at the top end of the negative screw rod;
the bottom of body is equipped with positive lead screw complex positive-locking nut, the top of body is equipped with anti-lead screw complex left-hand thread nut, channel-section steel bracket and template reinforcement strip butt.
Through adopting above-mentioned technical scheme, only need twist the body, can drive the rotation of just buckleing nut and left-hand thread nut, then, just lead screw and anti-lead screw go out simultaneously in order to realize the extension of flexible top tight piece and decide tightly. Thereby completing the jacking of the template reinforcing strip.
Optionally, the cross-sectional shape of the pipe body is a regular polygon, and the center of the regular polygon is circular.
Through adopting above-mentioned technical scheme, the cross section is the setting of regular polygon's body for the lateral surface of body has a plurality of edges, thereby is convenient for constructor to twist the body, accomplishes the extension or the shrink to flexible top member.
In a second aspect, the present application further provides a construction method for manufacturing the above-mentioned inverted supporting system for a steel truss floor deck, including the following steps:
installing an inverted bearing part;
hoisting a steel truss;
installing a telescopic supporting piece on the steel truss;
installing a template reinforcing strip, and placing the template reinforcing strip at the top end of the telescopic supporting piece to enable the template reinforcing strip to be abutted against the lower surface of the floor support plate;
adjusting the telescopic supporting piece to enable the bottom end of the telescopic supporting piece to tightly abut against the steel truss after the telescopic supporting piece is extended, and enabling the template reinforcing strip to tightly abut against the lower surface of the floor bearing plate;
and a telescopic jacking piece is arranged on the inner side of the I-shaped steel beam.
By adopting the technical scheme, the construction method has the advantages that the construction process is convenient and fast, time and labor are saved, the inverted supporting system of the steel truss floor support plate after construction is more stable, the disassembly is convenient, the steel truss floor support plate is not easy to damage, and the turnover rate is high.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the reverse hanging bearing part, the steel truss, the telescopic supporting part, the template reinforcing strip and the telescopic jacking part in the application are combined to form a reverse hanging type supporting system, the whole installation and operation are simple, the disassembly is convenient after the use, the secondary utilization is convenient, the turnover rate of materials is improved, and the reduction is realized. Meanwhile, the telescopic supporting pieces can be telescopically adjusted, so that the arching value of the floor bearing plate is ensured, and the supporting stability is improved;
2. compared with the traditional square wood structure, the square steel pipe has higher strength and is not easy to damage, so that the material turnover rate is high, the square steel pipe is convenient to recycle for multiple times, the supporting stability of the square steel pipe can be improved, and the elastic cushion plate can prevent the lower surface of a floor bearing plate from being damaged;
3. the cross section is the setting of regular polygon's body for the lateral surface of body has a plurality of edges, thereby is convenient for constructor to twist the body, accomplishes the extension or the shrink to flexible top member.
Drawings
Fig. 1 is a schematic overall structure diagram of a steel truss floor deck inverted support system disclosed in an embodiment of the present application.
Fig. 2 is a schematic structural diagram of an inverted load-bearing member in an embodiment of the present application.
Fig. 3 is a schematic structural view of the telescopic bracket in the embodiment of the present application.
Fig. 4 is a schematic view of the structure of the telescopic top member in the embodiment of the present application.
Fig. 5 is a block diagram of a flow of a construction method of a steel truss floor support plate inverted supporting system according to an embodiment of the present application.
Description of reference numerals: 11. hanging the bearing part upside down; 21. a steel truss; 31. a telescopic support member; 41. a template reinforcing strip; 51. a telescopic jacking piece; 111. buckling channel steel; 112. a splint; 113. a base plate; 114. a screw; 115. a nut; 1121. a long hole; 1131. a slider; 22. a hinged connecting rod; 31. a telescopic support member; 221. a protective cushion block; 311. a sleeve; 312. adjusting the nut; 313. a bracing screw; 314. a support plate; 3141. a groove; 411. a square steel pipe; 412. an elastic backing plate; 511. a first platen; 512. a positive lead screw; 513. a pipe body; 514. a reverse screw rod; 515. a channel steel bracket; 5131. a right-handed nut; 5132. and (4) reversely screwing a nut.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses steel truss floor carrier plate hanging upside down formula braced system. Referring to fig. 1, the inverted supporting system for the steel truss floor support plate comprises an inverted bearing part 11, a steel truss 21, an expansion supporting part 31, a template reinforcing bar 41 and an expansion jacking part 51. Wherein, hang the bearing part 11 and can dismantle with the I-steel roof beam and be connected, the both ends of steel truss 21 are worn to establish in two relative placement hang the bearing part 11, and the bottom and the steel truss 21 of flexible support piece 31 can be dismantled and be connected, and template reinforcing bar 41 and the butt of the 31 top of flexible support piece, and template reinforcing bar 41 and the lower surface butt of floor support plate play the supporting role, and flexible top piece 51 is installed on the I-steel roof beam medial surface.
Referring to fig. 1 and 2, the overhead bearing 11 includes a clip channel 111, a clip plate 112, a base plate 113, a screw 114, and a nut 115. The U-shaped notch of the buckle channel steel 111 is used for inserting a steel plate of an I-shaped steel beam, and the buckle channel steel 111 is fixedly installed on the I-shaped steel beam through bolts.
The clamping plate 112 can be made of an elongated steel plate, the two clamping plates 112 are perpendicularly welded on the buckle channel steel 111, the clamping plate 112 is provided with an upper edge along the length direction, in the embodiment of the application, the long hole 1121 is formed in the vertical direction, and the long hole 1121 in the clamping plate 112 can limit the bottom plate 113 in the horizontal direction. In a possible embodiment of the present application, the long hole 1121 may be a kidney-shaped hole.
The bottom plate 113 serves to support the steel truss 21, the two opposite side surfaces of the bottom plate 113 are provided with slide blocks 1131, the slide blocks 1131 are in clearance fit with the elongated holes 1121, and the two opposite side surfaces of the bottom plate 113 are abutted against the surface of the clamping plate 112. Of course, a through hole is formed in the bottom plate 113 for the screw 114 to pass through.
The screw 114 is vertically arranged in a gap between the two clamping plates 112, and the top end of the screw 114 is vertically connected with the buckle channel steel 111 in a welding manner. The bottom end of the screw 114 passes through the bottom plate 113. The nut 115 can be an oil-driven nut, the nut 115 is sleeved on the screw 114 and is in threaded connection with the screw 114, when the nut 115 is screwed upwards, the nut 115 enables the bottom plate 113 to move upwards along the screw 114, the steel truss 21 is further pushed upwards and pressed, and the steel truss 21 is tightly abutted to the surface of the buckle channel steel 111.
The steel truss 21 can be a rectangular frame formed by welding metal rods, and the metal rods in the steel truss 21 are welded with each other to form a plurality of triangular structural frames connected end to end so as to improve the structural stability of the whole supporting system.
The steel truss 21 is convenient and quick to install, the stability of the whole supporting system is improved, and the deformation arching amount of the floor bearing plate under the gravity of concrete is reduced. Referring to fig. 1, the whole side of the steel truss 21 is further rotatably connected with a hinge link 22 along a horizontal direction, and a telescopic support 31 is further placed on the hinge link 22. The installation of a plurality of steel trusses 21 at a time can be achieved by the articulated links 22. The hinged connecting rod 22 is composed of two connecting rods connected by a pin shaft in the middle, two ends of the connecting rod are respectively connected with two adjacent steel trusses 21 by pin shafts, and the telescopic supporting piece 31 provides support for the floor bearing plate template under the support of the hinged connecting rod 22.
In addition, in order to prevent the top end of the telescopic supporting member 31 on the hinge connecting rod 22 from damaging the lower surface of the floor deck, a protective cushion block 221 is arranged at the top end of the telescopic supporting member 31, the protective cushion block 221 can be a rectangular block made of rubber, and the protective cushion block 221 can be adhered to the top end of the telescopic supporting member 31.
Referring to fig. 1 and 3, the telescopic bracket 31 includes a sleeve 311, an adjustment nut 312, a bracket screw 313, and a support plate 314. Wherein, sleeve 311 can adopt the steel pipe to make, and sleeve 311's bottom and steel truss 21 releasable connection, in this application embodiment, sleeve 311's bottom welding has the threaded rod, and is corresponding, has seted up the screw hole on steel truss 21, through screwing in the screw hole with the threaded rod, accomplishes sleeve 311's installation.
The adjusting nut 312 is arranged at the top end of the sleeve 311, an annular long groove is formed in the end face of the top end of the sleeve 311, correspondingly, a sliding rod nested in the annular long groove is arranged on the surface of the adjusting nut 312, and the sliding rod can rotate along the annular long groove by taking the axis of the sleeve 311 as a rotating central shaft.
The bottom end of the supporting screw 313 is inserted into the sleeve 311 and is connected with the adjusting nut 312 by screw thread, when the adjusting nut 312 rotates, because the position of the sleeve 311 is already limited, the supporting screw 313 starts to move upwards, and the whole telescopic supporting member 31 is extended.
The supporting plate 314 is welded at the top end of the supporting screw 313, the supporting plate 314 is made of steel, the upper surface of the supporting plate 314 is further provided with a groove 3141 for placing the template reinforcing bar 41, and the inner wall of the groove 3141 is attached to the surface of the template reinforcing bar 41.
Referring to fig. 1, the formwork reinforcing bar 41 includes a square steel pipe 411 which is in clearance fit with the groove 3141 of the supporting plate 314, and an elastic pad 412 which is connected to the top surface of the square steel pipe 411. The surface of the square steel tube 411 is attached to the inner wall of the groove 3141 and clamped in the groove 3141, the elastic cushion plate 412 can be made of a rubber strip, and the elastic cushion plate 412 is adhered to the surface of the square steel tube 411. When the formwork reinforcing bars 41 move upward under the action of the lifting force generated by the extension of the telescopic supporting members 31 until the formwork reinforcing bars are tightly abutted against the lower surface of the floor deck.
Referring to fig. 1 and 4, the telescopic jacking member 51 includes a first pressing plate 511, a positive lead screw 512, a tubular body 513, a negative lead screw 514, and a channel bracket 515. The first pressing plate 511 may be a rectangular metal plate, and the lower surface of the first pressing plate 511 abuts against the bottom surface of the inner side of the i-beam.
The bottom end of the positive screw rod 512 is vertically welded with the upper surface of the first pressing plate 511, the bottom end of the pipe body 513 is in threaded connection with the top end of the positive screw rod 512, for this reason, a positive buckling nut 5131 in threaded connection with the positive screw rod in a matched manner should be welded at the bottom end of the pipe body 513, the top end of the pipe body 513 is in threaded connection with the negative screw rod 514, for this reason, a negative buckling nut 5132 in threaded connection with the negative screw rod 514 should be welded at the top end of the pipe body 513, and when the middle pipe body 513 is screwed, the positive screw rod 512 and the negative screw rod 514 go out simultaneously to realize extension and tightening of the telescopic jacking piece 51.
Further, in order to make the pipe 513 screwed more conveniently and quickly, the cross section of the pipe 513 is a regular polygon, the center of the regular polygon is a circle, and a circular hole is formed in the circle of the pipe 513 for the positive screw rod 512 and the negative screw rod 514 to pass through. In a possible embodiment of the present application, tubular body 513 has a regular hexagonal cross-section.
Channel-section steel bracket 515 can adopt the channel-section steel to cut and form, and channel-section steel bracket 515 and the top fixed connection of anti-silk pole 514, the connected mode can be the welding. A part of the template reinforcing bar 41 is positioned in a notch of the channel steel bracket 515, and after the telescopic jacking piece 51 extends, the channel steel bracket 515 moves upwards along with the backswing rod 514, so that the template reinforcing bar 41 is pushed to be tightly abutted to the lower surface of a floor support plate.
The embodiment of the application also discloses a construction method for manufacturing the steel truss floor support plate inverted supporting system, and with reference to fig. 5, the construction method comprises the following steps:
and S101, mounting the inverted load-bearing part 11.
And (3) clamping the inverted bearing part 11 to the edge of the lower flange of the I-shaped steel beam at the corresponding position, and installing the buckle channel steel 111 on the I-shaped steel beam by using bolts.
And S102, hoisting the steel truss 21.
And selecting a steel truss 21 corresponding to the span distance, wherein the member number is the length of the steel truss 21. Then, the steel truss 21 is lifted by a crane so that the portions of both ends of the steel truss 21 are inserted upward into the clamping plates 112, and the screw rods 114 are also inserted downward through the steel truss 21.
Then, the sliding block 1131 on the bottom plate 113 is inserted into the slot 1121, the nut 115 is screwed into the screw 114, and the bottom plate 113 is driven by the nut 115 to press the steel truss 21 upwards, so that the steel truss 21 is tightly abutted to the fastening channel 111.
And S103, mounting the telescopic supporting piece 31 on the steel truss 21.
The telescopic supporting pieces 31 are screwed into the reserved threaded holes on the steel truss 21 from top to bottom in a threaded connection mode, a plurality of telescopic supporting pieces 31 are installed on the steel truss 21 in the same way, and a plurality of telescopic supporting pieces 31 are installed on each steel truss 21.
And S104, installing the template reinforcing strip 41.
The template reinforcing bar 41 is placed on the top end of the telescopic support member 31, so that a part of the template reinforcing bar 41 is clamped in the groove 3141 on the support screw 313. A template reinforcing bar 41 is simultaneously supported by a plurality of telescopic supporting pieces 31, so that the template reinforcing bar 41 is abutted to the lower surface of the floor deck.
S105, adjusting the telescopic supporting piece 31.
The adjusting nut 312 on the telescopic supporting part 31 can be rotated by a tool, so that the adjusting nut 312 and the supporting screw 313 generate relative motion, the supporting screw 313 moves upwards, the telescopic supporting part 31 extends, then the supporting plate 314 is driven to move upwards, and the template reinforcing bar 41 is tightly abutted against the lower surface of the floor deck.
And S106, mounting the telescopic jacking piece 51 on the inner side of the I-shaped steel beam.
Place flexible top member 51 inboard at the I-steel roof beam, make the upper and lower both ends of flexible top member 51 respectively with the inboard upper and lower surface butt of I-steel roof beam, then rotatory sleeve 311 can adjust flexible height, until first clamp plate 511 supports tightly with the inboard lower surface of I-steel roof beam, channel-section steel bracket 515 drives template reinforcing bar 41 and supports tightly with the inboard upper surface of I-steel roof beam, accomplishes the installation of flexible top member 51 promptly. And finally, positioning measurement is carried out, and corresponding adjustment is carried out, so that the whole supporting system is more stable.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a steel truss floor carrier plate hanging upside down braced system which characterized in that: the steel beam reinforcing device comprises an inverted bearing part (11) detachably connected with an I-shaped steel beam, a steel truss (21) with two ends respectively penetrating through the inverted bearing part (11) which is oppositely arranged, a telescopic supporting part (31) with the bottom end detachably connected with the steel truss (21), a template reinforcing bar (41) abutted against the top end of the telescopic supporting part (31) and a plurality of telescopic jacking parts (51) arranged on the inner side of the I-shaped steel beam;
the template reinforcing strip (41) is abutted against the lower surface of the floor bearing plate.
2. The steel truss floor deck hanging-upside-down support system of claim 1, wherein: the inverted bearing part (11) comprises a buckle channel steel (111) detachably connected with the I-shaped steel beam, two clamping plates (112) vertically connected to the buckle channel steel (111), a bottom plate (113) perpendicular to the clamping plates (112) and connected with the clamping plates (112) in a sliding mode, a screw rod (114) vertically welded to the buckle channel steel (111) and a nut (115) sleeved on the screw rod (114);
when the nut (115) moves upwards along the screw (114), the bottom plate (113) is pushed to move upwards to push the steel truss (21) upwards.
3. The steel truss floor deck hanging-upside-down support system of claim 2, wherein: the clamping plate (112) is provided with a long hole (1121), and two opposite side surfaces of the bottom plate (113) are provided with sliding blocks (1131) matched with the long hole (1121).
4. The steel truss floor deck hanging-upside-down support system of claim 1, wherein: the steel truss support device is characterized by further comprising a hinged connecting rod (22) with two ends respectively rotatably connected with the adjacent steel trusses (21), and a telescopic support piece (31) is arranged on the hinged connecting rod (22).
5. The steel truss floor deck hanging-upside-down support system of claim 4, wherein: and a protective cushion block (221) is arranged at the top end of the telescopic supporting part (31) on the hinged connecting rod (22).
6. The steel truss floor deck hanging-upside-down support system of claim 1, wherein: the telescopic supporting piece (31) comprises a sleeve (311) with the bottom end detachably connected with the steel truss (21), an adjusting nut (312) arranged at the top end of the sleeve (311) and capable of rotating along the axis of the sleeve (311), a supporting screw (313) arranged in the sleeve (311) in a penetrating mode at the bottom end and connected with the adjusting nut (312) in a threaded mode, and a supporting plate (314) arranged at the top end of the supporting screw (313), wherein the top surface of the supporting plate (314) is provided with a groove (3141) for placing a template reinforcing bar (41).
7. The steel truss floor deck hanging-upside-down support system of claim 6, wherein: the template reinforcing bar (41) comprises a square steel pipe (411) in clearance fit with the groove (3141) in the supporting plate (314) and an elastic cushion plate (412) connected with the top surface of the square steel pipe (411).
8. The steel truss floor deck hanging-upside-down support system of claim 1, wherein: the telescopic jacking piece (51) comprises a first pressing plate (511) abutted against the bottom surface of the inner side of the I-shaped steel beam, a positive screw rod (512) vertically connected to the first pressing plate (511), a pipe body (513) with the bottom end in threaded connection with the positive screw rod (512), a negative screw rod (514) in threaded connection with the top end of the pipe body (513) and a channel steel bracket (515) arranged at the top end of the negative screw rod (514);
the bottom of body (513) is equipped with and just detains nut (5131) with positive lead screw (512) complex, the top of body (513) is equipped with and turns over screw (514) complex left-hand thread nut (5132), channel-section steel bracket (515) and template reinforcing strip (41) butt.
9. The steel truss floor deck hanging-upside-down support system of claim 8, wherein: the cross section of the pipe body (513) is in the shape of a regular polygon, and the center of the regular polygon is circular.
10. A construction method for manufacturing a steel truss floor deck inverted support system as claimed in any one of claims 1 to 9, comprising the steps of:
mounting an inverted bearing part (11);
hoisting a steel truss (21);
a telescopic supporting piece (31) is arranged on the steel truss (21);
installing a template reinforcing strip (41), and placing the template reinforcing strip (41) at the top end of the telescopic supporting piece (31) to enable the template reinforcing strip (41) to be abutted against the lower surface of the floor deck;
adjusting the telescopic supporting piece (31), so that the bottom end of the telescopic supporting piece (31) is tightly propped against the steel truss (21) after the telescopic supporting piece (31) is extended, and the template reinforcing bar (41) is tightly propped against the lower surface of the floor deck;
and a telescopic jacking piece (51) is arranged on the inner side of the I-shaped steel beam.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110041926.5A CN112854746A (en) | 2021-01-13 | 2021-01-13 | Inverted hanging type supporting system for steel truss floor support plate and construction method |
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| CN202110041926.5A CN112854746A (en) | 2021-01-13 | 2021-01-13 | Inverted hanging type supporting system for steel truss floor support plate and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197717A (en) * | 2021-12-17 | 2022-03-18 | 中建八局第四建设有限公司 | Reverse supporting structure of steel bar truss |
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