A new type of force steel bar truss floor support plate and construction process

Abstract

The application discloses a novel force-bearing steel bar truss floor support plate, which has stronger stability and better force-bearing supporting effect than the existing longitudinal steel bar truss floor support plate. The novel force-bearing steel bar truss floor support plate comprises a bottom formwork arranged on a steel beam, and two adjacent bottom formworks are spliced; the novel force-bearing steel bar truss floor support plate further comprises longitudinal steel bar trusses arranged on the upper surfaces of the bottom formworks; the longitudinal steel bar truss comprises two lower chord steel bars and one upper chord steel bar which are welded in pairs and parallel to each other through two web steel bars; the novel force-bearing steel bar truss floor support plate further comprises U-shaped supports which are arranged on the bottom formworks and whose extension directions are perpendicular to the extension directions of the lower chord steel bars; a plurality of longitudinal steel bar trusses are connected with a transverse steel bar truss; the novel force-bearing steel bar truss floor support plate further comprises balancing inserts; the top portions of the balancing inserts are connected with two adjacent longitudinal steel bar trusses, and the bottom portions of the balancing inserts are inserted into the splicing positions of the two bottom formworks to be fixed.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, specifically relating to a novel type of reinforced steel truss floor deck and its construction process. Background Technology

[0002] A steel truss is a truss constructed by resistance spot welding steel bars as the top chord, bottom chord, and web members. A composite load-bearing slab, formed by resistance spot welding a steel truss to a base plate (metal plate), is called a steel truss floor deck. Existing formwork-free steel truss floor decks are a new type of steel truss floor deck assembled from steel trusses and formwork-free components. The formwork is produced using industrial methods, eliminating the need for removal, and offers advantages such as high production efficiency, good surface flatness, and minimal support requirements during construction.

[0003] Before pouring concrete, existing floor deckings have longitudinal steel trusses arranged on the bottom formwork, and then concrete is poured to form the floor slab; however, this method, which relies solely on the upper surface of the bottom formwork to arrange several parallel longitudinal steel trusses, only meets the minimum building requirements in terms of overall stress. Summary of the Invention

[0004] In view of the shortcomings of the above-mentioned background technology, the purpose of this invention is to provide a new type of floor deck with a reinforcing steel truss, which has stronger stability and better stress support effect than the existing longitudinal steel truss.

[0005] To solve the above-mentioned technical problems, the objective of this invention is achieved as follows:

[0006] A novel type of reinforced steel truss floor deck includes a bottom formwork erected on a steel beam, with two adjacent bottom formworks spliced ​​together;

[0007] It also includes a longitudinal steel truss erected on the upper surface of the bottom formwork; the longitudinal steel truss consists of two lower chord steel bars and one upper chord steel bar, which are welded to each other in parallel by two web steel bars;

[0008] It also includes U-shaped supports, which are placed on the bottom formwork, with the extension direction of the U-shaped supports perpendicular to the extension direction of the bottom chord reinforcement.

[0009] Several longitudinal steel trusses are connected by transverse steel trusses;

[0010] It also includes a balancing plug; the top of the balancing plug is connected to two adjacent longitudinal steel trusses, and the bottom of the balancing plug is inserted through the splicing position of two bottom formwork pieces to form a fixation.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the U-shaped bracket includes a first plate, the two sides of the first plate are extended and bent to form a 7-shaped first side plate, the two first side plates face each other, and a through hole is provided on the first plate.

[0012] The lower chord reinforcement is erected on the first side plate; the first plate of the U-shaped bracket is placed on the bottom template, and self-tapping screws are connected and fixed through the bottom template and the through hole.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme: the end of the longitudinal steel truss is provided with an end support; the end support includes a first support plate; the bottom edge of the first support plate is extended and bent to form a second support plate; the first support plate has three notches, which are used to support two lower chord steel bars and one upper chord steel bar respectively; the second support plate is pressed against the bottom formwork, and the edge of the bottom formwork is supported on the steel beam.

[0014] Based on the above scheme and as a preferred embodiment of the above scheme: two elongated holes are formed on the first support plate;

[0015] The top surface of the steel beam is fixed with a stud; it also includes a safety buckle; the safety buckle is long and narrow, one end of the safety buckle is bent to form a first folded plate, the other end of the safety buckle is bent to form a first hook plate, the first folded plate is inserted into an elongated hole, and the first hook plate is fitted with a stud.

[0016] Based on the above scheme and as a preferred embodiment: the transverse steel truss includes transverse main members and transverse web members; the transverse main members are long and narrow, and are fixedly connected to the upper chord steel bars of the longitudinal steel truss; the middle of the transverse web members is bent upward to form the first bending section; the two ends of the transverse web members are cross-spanning and fixedly connected to the lower chord steel bars of the two longitudinal steel trusses, the first bending section is fixedly connected to the transverse main members, and the transverse web members are symmetrically connected to both sides of the transverse main members.

[0017] Based on the above scheme and as a preferred option, it also includes a connecting bracket; the connecting bracket is long and narrow, and is erected across the lower chord steel bars of several longitudinal steel trusses for connection and fixation.

[0018] Based on the above scheme and as a preferred embodiment: the balancing plug includes a limiting component, a fixing component, and a stop bar; the limiting component has upper and lower locking slots on its two sides respectively; the limiting component spans across the splicing position of two bottom templates, the upper locking slots on both sides of the limiting component are embedded into the upper chord steel bars of two adjacent longitudinal steel trusses for fixation, and the lower locking slots on both sides of the limiting component are embedded into the lower chord steel bars of two adjacent longitudinal steel trusses for fixation; the bottom of the limiting component protrudes from the fixing component, the surface of the fixing component has external threads, and the fixing component passes through the splicing position of the two bottom templates; the stop bar is long and has fixing holes, the fixing component passes through the fixing holes and is screwed on with nuts for fixation, and the stop bar is attached to the lower surface of the two adjacent bottom templates for fixation; the two adjacent bottom templates are clamped and fixed between the limiting component and the stop bar.

[0019] Based on the above scheme and as a preferred embodiment of the above scheme: the limiting component includes a first limiting strip and a second limiting strip; the cross-section of the first limiting strip and the second limiting strip is bent into a U-shape; the two ends of the first limiting strip are provided with first mounting holes, and the middle of the first limiting strip is connected with a fixing component;

[0020] The fastener passes through the second limiting strip for fixed connection, and the second limiting strip has second mounting holes at both ends;

[0021] It also includes a limiting block; the cross-section of the limiting block is bent into a U-shape; a third mounting hole is opened on the top surface of the limiting block, and lower latches are opened on the two side walls of the limiting block respectively; the limiting block is embedded in the first limiting strip and the second limiting strip respectively, and the bolt passes through the two to fix it and screws on the nut to fix it.

[0022] Based on the above scheme and as a preferred option: the upper surface of the bottom template is provided with irregular textures to form a concave-convex surface.

[0023] A construction process for a novel type of reinforced concrete truss floor slab includes the following steps:

[0024] 1. The U-shaped bracket and end face bracket are fixed on the bottom formwork, and the longitudinal steel reinforcement truss is welded on the U-shaped bracket; the transverse steel reinforcement truss is welded on, and then the transverse steel reinforcement truss is welded on the longitudinal steel reinforcement truss, forming a "well" shaped structure to form a floor deck with transverse steel reinforcement.

[0025] 2. The floor decking is laid on the beam; the top surface of the steel beam is equipped with studs, and safety buckles are respectively inserted between the end brackets and the studs for fixation;

[0026] Third, in step two, it is not limited to shear studs, safety buckles, or being fitted into the steel cage for fixation;

[0027] IV. In step one, select the connecting bracket and weld it to the lower chord steel bar as needed;

[0028] 5. Several balancing inserts are connected between the longitudinal steel trusses on the upper surface of two adjacent bottom formworks; the bottom of the balancing inserts supports the splicing position of the two adjacent bottom formworks.

[0029] 6. Tie the reinforcing steel bars on site according to the design drawings;

[0030] 7. Pouring concrete.

[0031] The outstanding and beneficial technical effects of this invention compared to the prior art are:

[0032] The floor decking of the reinforcing steel truss of the present invention, compared with the prior art,

[0033] 1. Weld U-shaped supports to the lower chord of the longitudinal steel truss to provide support. These supports are poured into the concrete, resulting in better overall support and stability of the floor slab. The U-shaped supports are fixed to the bottom formwork with self-tapping screws. During construction, the load on the bottom formwork is transferred to the longitudinal steel truss by the self-tapping screws.

[0034] 2. End supports are installed at the ends of the longitudinal steel truss to support both ends of the longitudinal steel truss and to provide pressure on the edges of the bottom formwork. During construction, the load is transferred to the longitudinal steel truss through the end supports, protecting the bottom formwork from damage during construction.

[0035] 3. Studs are welded onto the steel beams, and safety clips are used to hold the studs and end supports in place; this solves the problem of the bottom formwork slipping under horizontal impact. Besides studs, they can also be used to connect the reinforcing cage or the bottom formwork.

[0036] 4. Longitudinal steel trusses are installed on the upper surface of the bottom formwork. Several transverse steel trusses are connected between the longitudinal steel trusses according to the stress requirements. The transverse steel trusses include transverse main members, which are used to be erected on the upper chord steel bars and welded and fixed. The transverse steel trusses also include transverse web members, which span and connect the two lower chord steel bars of the longitudinal steel trusses. The longitudinal steel trusses are connected together by the transverse steel trusses to form an intersecting whole structure, which gives the floor deck better strength, stability and support.

[0037] 5. Horizontal steel trusses facilitate uniform spacing of longitudinal steel reinforcement beams and consistent concrete cover thickness, improving the construction quality of the floor slab. Steel truss floor slabs can significantly reduce on-site steel reinforcement binding work, accelerate construction progress, increase construction safety, and achieve civilized construction practices.

[0038] 6. Several balancing inserts are added. The balancing inserts include limiting components for connecting and pulling, and fixing components that pass through the splicing position of two bottom formwork pieces. The fixing components are inserted into the stop strips, and the stop strips match the size of the bottom formwork pieces. The nuts are screwed on to bring the stop strips into contact with the two bottom formwork pieces, achieving a flat effect at the splicing position of the two bottom formwork pieces. The upper and lower clamps of the limiting components are respectively fitted with upper and lower chord steel bars, which achieves the function of clamping the gap between two adjacent bottom formwork pieces. The balancing inserts are installed between two adjacent bottom formwork pieces, which achieves the function of connecting all bottom formwork pieces as a whole.

[0039] This solves many problems associated with existing wooden support systems, such as poor stability, grout leakage due to large gaps, and instability of the formwork due to the lack of overall connection between the wooden sticks.

[0040] 7. The limiting components are separated into a first limiting strip and a second limiting strip to achieve adjustable vertical height; Attached Figure Description

[0041] Figure 1This is a schematic diagram of the overall structure of a single longitudinal steel truss of the present invention.

[0042] Figure 2 This is a top view schematic diagram of a single longitudinal steel truss structure of the present invention.

[0043] Figure 3 This is a side view schematic diagram of a single longitudinal steel truss structure of the present invention.

[0044] Figure 4 This is a schematic diagram of the U-shaped support structure of the present invention.

[0045] Figure 5 This is a schematic diagram of the U-shaped support structure of the present invention.

[0046] Figure 6 This is a schematic diagram of the end bracket structure of the present invention.

[0047] Figure 7 This is a schematic diagram of the safety buckle structure of the present invention.

[0048] Figure 8 This is a schematic diagram of the safety buckle structure of the present invention.

[0049] Figure 9 This is a schematic diagram of the overall construction structure of the present invention.

[0050] Figure 10 yes Figure 9 A side view of the overall construction structure.

[0051] Figure 11 This is a schematic diagram of the overall construction side view of the present invention.

[0052] Figure 12 This is a schematic diagram of the overall main structure of the present invention.

[0053] Figure 13 This is a top view schematic diagram of the overall structure of the present invention.

[0054] Figure 14 This is a schematic diagram of the overall side view structure of the present invention.

[0055] Figure 15 yes Figure 12 A magnified structural diagram of part A.

[0056] Figure 16 yes Figure 12 A magnified structural diagram of part B.

[0057] Figure 17 yes Figure 12 A magnified schematic diagram of a portion of C.

[0058] Figure 18 yes Figure 14A magnified schematic diagram of a portion of the structure.

[0059] Figure 19 yes Figure 18 A partial enlarged schematic diagram of the unconnected support structure.

[0060] Figure 20 This is a schematic diagram of the transverse steel truss structure of the present invention.

[0061] Figure 21 yes Figure 9 A cross-sectional view of the AA balance plug structure.

[0062] Figure 22 This is a side view of the limiting member structure of the present invention.

[0063] Figure 23 This is a schematic diagram of another balancing plug structure of the present invention.

[0064] Figure 24 This is a schematic diagram of the first limiting strip structure of the present invention.

[0065] Figure 25 This is a schematic diagram of the second limiting strip structure of the present invention.

[0066] Figure 26 This is a schematic diagram of the limiting block structure of the present invention.

[0067] Figure 27 This is a schematic diagram of the baffle structure of the present invention.

[0068] Reference numerals: Longitudinal steel truss 01; Lower chord reinforcement 010; Upper chord reinforcement 011; Web reinforcement 012; U-shaped bracket 02; First plate 020; Through hole 0200; First side plate 021; Bottom formwork 03; Concave-convex surface 030; Self-tapping screw 04; End bracket 05; First support plate 050; Notch 0500; Oblong hole 0501; Second support plate 051; Steel beam 06; Stud 07; Safety buckle 08; First folding plate 080; First hook plate 081; Transverse steel truss 10; Horizontal Main rod 100; transverse web member 101; first bent section 1010; connecting bracket 11; balance insert 20; limiting component 200; upper bayonet 2001; lower bayonet 2002; hollow hole 2003; first limiting strip 2004; first mounting hole 20040; second limiting strip 2005; second mounting hole 20050; internal thread hole 20051; limiting block 2006; third mounting hole 20060; fastener 201; stop strip 202; fixing hole 2020; nut 21; bolt 22. Detailed Implementation

[0069] The present invention will be further described below with reference to the accompanying drawings and specific embodiments;

[0070] This embodiment provides a novel type of reinforced steel truss floor deck, including a bottom formwork 03 erected on a steel beam 06, with two adjacent bottom formworks 03 spliced ​​together; concrete is poured on the bottom formwork 03.

[0071] It also includes a longitudinal steel truss 01 erected on the upper surface of the bottom formwork 03; the longitudinal steel truss 01 includes two lower chord steel bars 010 and one upper chord steel bar 011, which are welded to each other in parallel by two web steel bars 012; the longitudinal steel truss 01 is cast in concrete to provide support; the longitudinal steel truss 01 is an existing design, which is made of steel reinforcement material and welded together. The length of the longitudinal steel truss 01 is determined according to the design requirements; the two lower chord steel bars 010 located below and the one upper chord steel bar 011 located above form a triangle, and then the bent wavy web steel bars 012 are welded on both sides;

[0072] It also includes a U-shaped bracket 02, which is placed on the bottom formwork 03. The extension direction of the U-shaped bracket 02 is perpendicular to the extension direction of the lower chord reinforcement 010. The U-shaped bracket 02 provides better axial support for the lower chord reinforcement 010, resulting in better support for the entire floor deck.

[0073] Several longitudinal steel trusses 01 are connected by transverse steel trusses 10, forming the entire load-bearing system of the floor deck; the transverse steel trusses 10 are used to connect the longitudinal steel trusses 01 supports to form an overall crisscross structure; the cast-in-place floor deck is subjected to more uniform stress, and both the longitudinal and transverse steel trusses 10 can play a supporting role.

[0074] It also includes a balancing insert 20; the top of the balancing insert 20 is connected to two adjacent longitudinal steel trusses 01, and the bottom of the balancing insert 20 is inserted through the splicing position of two bottom formwork 03 to form a fixation. The balancing insert 20 is connected to the supports of the two longitudinal steel trusses 01, supporting and supporting the two spliced ​​bottom formwork 03, achieving the function of clamping the gap between the two adjacent bottom formwork 03; in fact, the flatness is higher, and the poured floor slab is more flush; it achieves the function of connecting all the bottom formwork 03 as a whole;

[0075] As described above, the existing bottom formwork 03 is supported by longitudinal steel trusses 01. To achieve better uniform stress distribution, stronger connections, and better support, U-shaped supports 02 are installed at the bottom of the longitudinal steel trusses 01 for support. Transverse steel trusses 10 are connected between the longitudinal steel trusses 01 to restrain them, forming a complete frame structure with better overall strength after concrete pouring. The balancing insert 20 is used to support the two spliced ​​bottom formwork 03 pieces, resulting in better flatness of the floor slab. It also clamps the gaps between two adjacent bottom formwork 03 pieces and connects all the bottom formwork 03 pieces as a whole.

[0076] Furthermore, the U-shaped bracket 02 includes a first plate 020, which is made of metal. The first plate 020 has two side edges that extend and bend to form a 7-shaped first side plate 021. The first plate 020 and the two side plates 021 are integrally formed using metal sheet bending to ensure strength. The two side plates 021 face each other, and the cross-section of the U-shaped bracket 02 is C-shaped. The first plate 020 has through holes 0200, the number of which depends on requirements.

[0077] The lower chord reinforcement 010 is mounted on the first side plate 021; the lower chord reinforcement 010 and the first side plate 021 are spot welded together at the contact point, and the connection between the two is not easy to separate; the extension direction of the U-shaped bracket 02 is perpendicular to the extension direction of the lower chord reinforcement 010; the U-shaped bracket 02 provides better axial support for the lower chord reinforcement 010; the two-point welding is more conducive to the support effect.

[0078] The first plate 020 of the U-shaped bracket 02 is placed on the bottom template 03, and the self-tapping screw 04 passes through the bottom template 03 and is connected and fixed to the through hole 0200. The automatic screw is connected and fixed to the U-shaped bracket 02, so that the U-shaped bracket 02 will not shift on the bottom template 03, and thus the longitudinal steel truss 01 will not move.

[0079] As described above, in the specific manufacturing and installation process, the longitudinal steel truss 01 is welded in the factory; the U-shaped bracket 02 is manufactured in the factory and fastened to the bottom template 03 by self-tapping screws 04; then the longitudinal steel truss 01 is placed on the U-shaped bracket 02 and the end bracket 05 and fixed by welding; the bottom template 03 is placed on the steel beam 06 and concrete is poured.

[0080] Furthermore, the ends of the longitudinal steel truss 01 are provided with end supports 05; the end supports 05 are also made of metal plates that are punched, cut and bent in one piece to ensure their support strength.

[0081] The end support 05 includes a first support plate 050; the bottom edge of the first support plate 050 is extended and bent to form a second support plate 051; the first support plate 050 is installed vertically, and the second support plate 051 is set horizontally to play a stabilizing role; the first support plate 050 has three notches 0500, which are used to support two lower chord steel bars 010 and one upper chord steel bar 011 respectively; the lower chord steel bars 010 and the upper chord steel bars 011 are embedded in the notches 0500 and fixed by spot welding; the second support plate 051 presses against the bottom formwork 03, and the edge of the bottom formwork is supported on the steel beam 06. The weight of the longitudinal reinforcement is transmitted to the edge of the bottom formwork 03 through the end support 05, and is pressed down to fix the edge of the bottom formwork 03 between the end support 05 and the steel beam 06. During the concrete pouring process, the force of the bottom formwork 03 will be transferred to the longitudinal reinforcement truss 01. The bottom formwork 03 and the longitudinal reinforcement truss 01 form an integral force-bearing structure, and the external construction force will not damage the bottom formwork 03.

[0082] As described above, in the specific usage process, after the longitudinal steel truss 01 and the U-shaped bracket 02 are fixed on the bottom formwork 03, the end bracket 05 is then inserted into both ends of the longitudinal steel truss 01 and welded to fix it. This not only strengthens the connection of the two ends of the longitudinal steel truss 01 without web members 012, but also presses the edge of the bottom formwork 03 firmly again, protecting the contact surface between the bottom formwork 03 and the steel beam 06.

[0083] Furthermore, two elongated holes 0501 are formed on the first support plate 050; one of the two elongated holes 0501 is vertical and the other is horizontal.

[0084] The top surface of steel beam 06 is fixed with studs 07; the bottom of studs 07 is directly welded to the top surface of steel beam 06.

[0085] It also includes a safety buckle 08; the safety buckle 08 is made of a metal strip; the safety buckle 08 is long and narrow, and one end of the safety buckle 08 is bent to form a first folded plate 080; the first folded plate 080 is flat; the other end of the safety buckle 08 is bent to form a first hook plate 081; the first hook plate 081 is an arc-shaped hook; the first folded plate 080 is inserted into an elongated hole 0501, and the first hook plate 081 is fitted with a stud 07.

[0086] As described above, to prevent the bottom formwork 03 from being subjected to horizontal impact forces and slipping off the steel beam 06, studs 07 are welded onto the steel beam 06. One end of a safety buckle 08 is inserted into the end support 05, and the other end of the safety buckle 08 is fitted with a stud 07 to pull the end support 05 in place, thereby pulling the longitudinal steel truss 01 in place as well. At the same time, the stud 07 can also block the bottom formwork 03 to prevent it from slipping off. In addition to being fitted with the stud 07, the safety buckle 08 can also be hooked onto the steel cage or another bottom formwork 03.

[0087] Preferably, the plane containing the first folding plate 080 is parallel or perpendicular to the plane containing the first hook plate 081. As described above, the first folding plate 080 is first inserted into the vertical elongated hole 0501, and then rotated to fit the first hook plate 081 into the stud 07; or the first folding plate 080 is first inserted into the horizontal elongated hole 0501, and then rotated to fit the first hook plate 081 into the stud 07; the safety buckles 08 on the left and right sides of the same stud 07 will not interfere with each other;

[0088] Preferably, each lower chord steel bar 010 is mounted on a U-shaped bracket 02. As described above, the bottom of each lower chord steel bar 010 is connected to a U-shaped bracket 02 to distribute the supporting force.

[0089] Preferably, two adjacent lower chord reinforcing bars 010 are mounted on the same U-shaped bracket 02, and two through holes 0200 are provided on the first plate 020. As described above, the bottoms of the two lower chord reinforcing bars 010 of the same longitudinal steel truss 01 are connected to the same U-shaped bracket 02. To increase the load-bearing capacity of the U-shaped bracket 02, the U-shaped bracket 02 is correspondingly lengthened; the length of the U-shaped bracket 02 is 3-20 cm. This allows it to be adapted to different width requirements.

[0090] The transverse steel truss 10 includes transverse main members 100 and transverse web members 101; both the transverse main members 100 and the transverse web members 101 are made of steel bars; the transverse main members 100 are long strips and are fixedly connected to the upper chord steel bars 011 of the longitudinal steel truss 01; the transverse main members 100 connect the upper chord steel bars 011 of the longitudinal steel truss 01 to each other to form a complete whole; the transverse web members 101 are used to connect one lower chord steel bar 010 of each of two adjacent longitudinal steel trusses 01, so that the two adjacent longitudinal steel trusses 01 pull each other and have a uniform overall stress effect.

[0091] The middle of the transverse web member 101 is bent upward to form the first bent section 1010; both ends of the transverse web member 101 are cross-spanning and fixed to the lower chord bars 010 of the two longitudinal steel trusses 01. The first bent section 1010 is fixed to the transverse main member 100, and the transverse web members 101 are symmetrically connected to both sides of the transverse main member 100. The first bent section 1010 of the transverse web member 101 is connected to the transverse main member 100 to increase its overall stability.

[0092] As described above, in the specific installation process, several longitudinally arranged longitudinal steel trusses 01 are placed on the upper surface of the bottom template 03; then the transverse main rod 100 is placed on the upper chord steel bar 011 and spot welded; the two ends of the transverse web member 101 are connected to two lower chord steel bars 010 and welded and fixed; the first bending section 1010 is welded and fixed to the transverse main rod 100; the transverse main rod and the transverse web member 101 are connected to form an integral transverse steel truss 10, which involves the longitudinal steel truss 01, making the overall stress more uniform and solid;

[0093] The transverse main bar 100 is not limited to welding on the upper chord bar 011, but can also be welded on the lower surface of the upper chord bar 011;

[0094] Furthermore, it also includes a connecting bracket 11; the connecting bracket 11 is long and narrow, and is connected and fixed across the lower chord steel bars 010 of several longitudinal steel trusses 01.

[0095] As mentioned above, the connecting bracket 11 can be round steel or long steel. The connecting bracket 11 is welded to the lower chord steel bar 010 as required, connecting the lower chord steel bar 010 of the longitudinal steel truss 01 into a whole, which improves the support of the entire floor slab. According to the stress requirements, the connecting bracket 11 can be omitted.

[0096] Preferably, the transverse main member 100 is welded to the upper chord reinforcement 011 or tied with steel wire; the two ends of the transverse web member 101 are respectively welded to the lower chord reinforcement 010 or tied with steel wire, and the first bending section 1010 is welded to the transverse main member 100 or tied with steel wire.

[0097] As mentioned above, depending on different connection requirements, different connection and fixing methods can be used between the longitudinal steel truss 01 and the transverse steel truss 10, and spot welding has good firmness;

[0098] Preferably, the first bending segment 1010 is in the shape of a figure eight.

[0099] As mentioned above, the figure-eight shape has the best stability, the transverse web members 101 will not deform, and the overall transverse steel truss 10 is more stable.

[0100] Preferably, the connecting bracket 11 is welded and fixed to the lower chord steel bar 010.

[0101] As mentioned above, welding provides better connection strength and durability;

[0102] Furthermore, the balancing plug-in 20 includes a limiting member 200, a fixing member 201, and a stop bar 202; the limiting member 200, the fixing member 201, and the stop bar 202 are supported by metal materials and have good corrosion resistance; the limiting member 200 has an upper latch 2001 and a lower latch 2002 on its two sides respectively; the upper latch 2001 and the lower latch 2002 are V-shaped or trapezoidal for embedding steel bars;

[0103] The limiting member 200 spans the splicing position of the two bottom formwork pieces 03. The upper latches 2001 on both sides of the limiting member 200 are respectively embedded into the upper chord steel bars 011 of the two adjacent longitudinal steel trusses 01 and fixed. The two upper chord steel bars 011 are pulled left and right by the upper latches 2001 of the limiting member 200. The lower latches 2002 on both sides of the limiting member 200 are respectively embedded into the lower chord steel bars 010 of the two adjacent longitudinal steel trusses 01 and fixed. The two lower chord steel bars 010 are pulled left and right by the lower latches 2002 of the limiting member 200.

[0104] The bottom of the limiting component 200 protrudes from the fixing component 201; the fixing component 201 and the limiting component 200 are integrally formed to ensure a firm connection between them; the surface of the fixing component 201 has external threads, and the fixing component 201 passes through the splicing position of the two bottom templates 03; the two bottom templates 03 are spliced ​​together on both sides of the fixing component 201; the stop strip 202 is long and narrow; the length of the stop strip 202 matches the bottom template 03; the stop strip 202 has fixing holes 2020, the fixing component 201 passes through the fixing holes 2020 and is fixed with nuts 21, and the stop strip 202 is fixed to the lower surface of the two adjacent bottom templates 03; the two adjacent bottom templates 03 are clamped between the limiting component 200 and the stop strip 202. The stop strip 202 supports the two adjacent bottom templates 03, making the splicing position of the two bottom templates 03 flush and preventing leakage during concrete pouring; this implementation scheme is an innovative process;

[0105] As described above, in the specific installation process, adjacent bottom formwork 03 is laid on the steel beam 06, and longitudinal steel trusses 01 are erected on the upper surface of the bottom formwork 03, with each pair of longitudinal steel trusses 01 evenly spaced; balance plugs 20 are installed at the splicing position of the two bottom formwork 03, limiters 200 are fitted into the upper chord steel bars 011 and lower chord steel bars 010, and fixing pieces 201 are inserted through the splicing position of the two bottom formwork 03 into the fixing holes 2020 of the retaining strip 202. Nuts 21 are screwed on to fit the retaining strip 202 with the bottom formwork 03, which provides support and tension, achieving a smooth concrete surface;

[0106] By using the balancing plug 20, adjacent floor deckings are connected into a whole, so that during construction, the load is changed from a single floor decking to the entire row of floor deckings, which is more stable, reliable and safe; the adjacent floor deckings are clamped together and the bottom surface is kept flat to prevent grout leakage and ensure good flatness.

[0107] Preferably, the lower surface of the baffle 202 protrudes outward from the middle to form a structure that is narrow at both ends and wide in the middle;

[0108] Furthermore, the limiting member 200 includes a first limiting strip 2004 and a second limiting strip 2005; the first limiting strip 2004 and the second limiting strip 2005 are made of metal strips; the cross-section of the first limiting strip 2004 and the second limiting strip 2005 is bent into a U-shape; the first limiting strip 2004 has first mounting holes 20040 at both ends, and a fixing member 201 is connected in the middle of the first limiting strip 2004; the fixing member 201 is rod-shaped and welded to the first limiting strip 2004 for fixation.

[0109] The fastener 201 passes through the second limiting strip 2005 for fixed connection. The second limiting strip 2005 has second mounting holes 20050 at both ends. The second limiting strip 2005 also has a hole in the middle. The fastener 201 passes through the second limiting strip 2005 and is welded for fixed connection. The height difference between the first limiting strip 2004 and the second limiting strip 2005 matches the height of the upper and lower chord steel bars 010 of the longitudinal steel truss 01.

[0110] It also includes a limiting block 2006; the cross-section of the limiting block 2006 is bent into a U-shape; the cross-section of the limiting block 2006 matches the cross-section of the first limiting strip 2004 and the second limiting strip 2005; a third mounting hole 20060 is provided on the top surface of the limiting block 2006, and lower latches 2002 are provided on the two side walls of the limiting block 2006 respectively; the lower latches 2002 are inverted V-shaped or trapezoidal; the limiting block 2006 is embedded in the first limiting strip 2004 and the second limiting strip 2005 respectively; the limiting block 2006 is clamped and attached inside; the bolt 22 passes through both and is fixed by screwing on the nut 21.

[0111] As described above, in the specific usage process, a longitudinal steel truss 01 is erected on the bottom formwork 03. The two end limit blocks 2006 of the first limit bar 2004 are embedded in the upper chord steel bar 011, and the two end limit blocks 2006 of the second limit bar 2005 are embedded in the lower chord steel bar 010. The fastener 201 passes through the two bottom formwork 03, inserts the stop bar 202, and then screws on the nut 21 to fix it. The limit blocks 2006 can be disassembled and replaced, and are suitable for steel bars of different diameters, making it easy to repair and replace.

[0112] Preferably, the fastener 201 is a screw; the top surface of the second limiting strip 2005 has an internal threaded hole 20051.

[0113] The first mounting hole 20040 and the second mounting hole 20050 are oblong holes.

[0114] As described above, the second limiting strip 2005 is connected to the fixing member 201 by a thread, which can be adjusted vertically and is suitable for longitudinal steel trusses 01 of different specifications and heights; the first mounting hole 20040 and the second mounting hole 20050 are waist-shaped holes, which can make the limiting block 2006 finely adjusted left and right, making it more practical.

[0115] Furthermore, the upper surface of the bottom template 03 is provided with irregular textures to form a concave-convex surface 030.

[0116] As described above, the upper surface of the bottom formwork 03 has a concave-convex surface 030, which makes the concrete more tightly bonded to the bottom formwork 03 after pouring, and will not separate and cause local hollowing.

[0117] In another embodiment, the limiting member 200 is plate-shaped; the upper latch 2001 and lower latch 2002 of the limiting member 200 are trapezoidal; and a hollow hole 2003 is provided in the middle of the limiting member 200.

[0118] As described above, the limiting member 200 is plate-shaped and used to fix the height limit. It can be inserted into the longitudinal steel truss 01 for quick installation. The perforated hole 2003 on the limiting member 200 can improve the internal stress effect and make it less prone to deformation and bending.

[0119] Preferably, the perforated holes 2003 are arranged symmetrically.

[0120] As mentioned above, the two perforated holes in 2003 distribute the force more evenly;

[0121] A construction process for a novel type of reinforced concrete truss floor slab; characterized by the following steps:

[0122] 1. The U-shaped bracket 02 and the end face bracket are fixed on the bottom formwork 03, and the longitudinal steel bar truss is welded on it. The longitudinal steel bar truss 01 is welded on the U-shaped bracket 02. The transverse steel bar truss is welded on it, and then the transverse steel bar truss 10 is welded on the longitudinal steel bar truss. The "well" shaped structure forms a floor deck with transverse steel bars.

[0123] 2. The floor deck is laid on the beam; the top surface of the steel beam 06 is equipped with studs 07, and safety buckles 08 are respectively fitted into the end brackets 05 and studs 07 for fixation;

[0124] Third, in step two, it is not limited to the use of shear studs 07, safety buckles 08, or fixing by inserting them into the steel cage;

[0125] IV. In step one, select the connecting bracket 11 and weld it to the lower chord steel bar 010 as needed;

[0126] 5. Several balancing inserts 20 are connected between the longitudinal steel trusses 01 on the upper surface of two adjacent bottom formwork 03; the bottom of the balancing inserts 20 supports the splicing position of the two adjacent bottom formwork 03.

[0127] 6. Tie the reinforcing steel bars on site according to the design drawings;

[0128] 7. Pouring concrete.

[0129] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0130] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In this invention, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw-in," etc., should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection.

[0131] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A novel type of floor decking with reinforced steel trusses, characterized in that: This includes the bottom formwork erected on the steel beams, with two adjacent bottom formwork panels being spliced ​​together; It also includes a longitudinal steel truss erected on the upper surface of the bottom formwork; the longitudinal steel truss consists of two lower chord steel bars and one upper chord steel bar, which are welded to each other in parallel by two web steel bars; It also includes U-shaped supports, which are placed on the bottom formwork, with the extension direction of the U-shaped supports perpendicular to the extension direction of the bottom chord reinforcement. Several longitudinal steel trusses are connected by transverse steel trusses; It also includes a balancing plug; the top of the balancing plug is connected to two adjacent longitudinal steel trusses, and the bottom of the balancing plug is inserted through the splicing position of two bottom formwork pieces to form a fixation. The balancing component includes a limiting component, a fixing component, and a stop bar. The limiting component has upper and lower locking slots on its two sides. The limiting component spans the splicing position of two bottom templates. The upper locking slots on both sides of the limiting component are embedded into the upper chord bars of two adjacent longitudinal steel trusses for fixation, and the lower locking slots on both sides of the limiting component are embedded into the lower chord bars of two adjacent longitudinal steel trusses for fixation. The bottom of the limiting component has a protruding fixing component with external threads on its surface. The fixing component passes through the splicing position of the two bottom templates. The stop bar is long and has fixing holes. The fixing component passes through the fixing holes and is screwed on with a nut for fixation. The stop bar is fixed to the lower surface of the two adjacent bottom templates. The two adjacent bottom templates are clamped and fixed between the limiting component and the stop bar.

2. The floor deck of the novel reinforced steel truss according to claim 1, characterized in that: The U-shaped bracket includes a first plate, with the two sides of the first plate extending and bending to form a 7-shaped first side plate. The two first side plates face each other, and a through hole is provided on the first plate. The lower chord reinforcement is erected on the first side plate; the first plate of the U-shaped bracket is placed on the bottom template, and self-tapping screws are connected and fixed through the bottom template and the through hole.

3. The floor deck of the novel reinforced steel truss according to claim 1, characterized in that: The longitudinal steel truss is provided with end supports at its ends; the end supports include a first support plate; the bottom edge of the first support plate is extended and bent to form a second support plate; the first support plate has three notches, which are used to support two lower chord steel bars and one upper chord steel bar respectively; the second support plate is pressed against the bottom formwork, and the edge of the bottom formwork is supported on the steel beam.

4. The floor deck of the novel reinforced steel truss according to claim 3, characterized in that: Two oblong holes are formed on the first support plate; The top surface of the steel beam is fixed with a stud; it also includes a safety buckle; the safety buckle is long and narrow, one end of the safety buckle is bent to form a first folded plate, the other end of the safety buckle is bent to form a first hook plate, the first folded plate is inserted into an elongated hole, and the first hook plate is fitted with a stud.

5. The floor deck of the novel reinforced steel truss according to claim 1, characterized in that: The transverse steel truss includes transverse main members and transverse web members; the transverse main members are long and strip-shaped, and are connected and fixed to the upper chord steel bars of the longitudinal steel truss; the middle of the transverse web members is bent upward to form the first bending section; the two ends of the transverse web members are straddled and fixed to the lower chord steel bars of the two longitudinal steel trusses, the first bending section is connected and fixed to the transverse main members, and the transverse web members are symmetrically connected to both sides of the transverse main members.

6. The floor deck of the novel reinforced steel truss according to claim 5, characterized in that: It also includes connecting brackets; the connecting brackets are long and narrow, and are laid across the lower chord steel bars of several longitudinal steel trusses for connection and fixation.

7. The floor deck of the novel reinforced steel truss according to claim 1, characterized in that: The limiting component includes a first limiting strip and a second limiting strip; the cross-section of the first limiting strip and the second limiting strip is bent into a U-shape; the two ends of the first limiting strip are provided with first mounting holes, and the middle of the first limiting strip is connected with a fixing component; The fastener passes through the second limiting strip for fixed connection, and the second limiting strip has second mounting holes at both ends; It also includes a limiting block; the cross-section of the limiting block is bent into a U-shape; a third mounting hole is opened on the top surface of the limiting block, and lower latches are opened on the two side walls of the limiting block respectively; the limiting block is embedded in the first limiting strip and the second limiting strip respectively, and the bolt passes through the two to fix it and screws on the nut to fix it.

8. The floor deck of the novel reinforced steel truss according to claim 1, characterized in that: The upper surface of the bottom template has irregular textures to form a concave-convex surface.

Images