CN210530084U - Open type steel reinforced concrete composite truss floor - Google Patents

Open type steel reinforced concrete composite truss floor Download PDF

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Publication number
CN210530084U
CN210530084U CN201921182718.1U CN201921182718U CN210530084U CN 210530084 U CN210530084 U CN 210530084U CN 201921182718 U CN201921182718 U CN 201921182718U CN 210530084 U CN210530084 U CN 210530084U
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China
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plate body
upper chord
chord arm
arm
diagonal bracing
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CN201921182718.1U
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师圣杰
杨文超
雷红兵
何志强
庞瑞
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Henan Lyujian Building Technology Co Ltd
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Henan Lyujian Building Technology Co Ltd
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Abstract

The utility model provides an open type steel concrete composite truss floor, including truss skeleton, the first plate body and the second plate body that the level set up and coincide from top to bottom, truss skeleton includes a last chord arm and a plurality of group bracing component, every group bracing component all includes about last chord arm bilateral symmetry's left diagonal brace and right diagonal brace, the lower part of left diagonal brace and right diagonal brace is pre-buried in first plate body and second plate body, the cross section of going up the chord arm is the open U type cavity structure in top, concrete has been pour in the U type cavity structure. The utility model discloses following technological effect has: the support is convenient to pour and fill, high in connection strength, light in weight, low in cost and high in stability.

Description

Open type steel reinforced concrete composite truss floor
Technical Field
The utility model belongs to the technical field of the construction, concretely relates to opening type steel concrete composite truss floor.
Background
In recent years, the superposed concrete floor with the truss has the advantages of high construction efficiency and low construction cost, and is increasingly widely applied to the building industry. The utility model discloses a utility model patent that the grant bulletin number is CN 202866084U discloses a concrete coincide floor that is equipped with floor support on the truss, and this concrete floor has following technical problem when the site operation: when concrete is poured in the cavity inside the upper chord arm, grouting is needed from two ends, so that the operation is inconvenient, and the concrete poured inside is not compact; the upper chord arm is a square pipe or a circular pipe, the upper end of the support rib which is obliquely arranged is welded with the pipe wall of the upper chord arm, and the pipe wall of the upper chord arm is required to be thicker for firm welding, so that the whole concrete floor slab is heavy and high in cost; in addition, the connection strength between the upper chord arm and the lower plate body cannot be ensured only by the mode that a plurality of obliquely arranged support ribs are welded with the upper chord arm.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide one kind and be convenient for pour grout, joint strength height, light in weight, with low costs opening type steel concrete composite truss floor.
In order to solve the technical problem, the utility model adopts the following technical scheme: an open type steel reinforced concrete composite truss floor slab comprises a truss framework, a first plate body and a second plate body which are horizontally arranged and vertically overlapped, wherein the second plate body is positioned at the upper part of the first plate body, a first steel bar framework is arranged in the first plate body, a second steel bar framework is arranged in the second plate body, the lower part of the truss framework is arranged in the first plate body and the second plate body, an installation framework is horizontally arranged at the top of the truss framework, the truss framework comprises an upper chord arm and a plurality of groups of diagonal members, the upper chord arm is horizontally arranged along the front-back direction, the diagonal members are uniformly arranged along the length direction of the upper chord arm, each group of diagonal members comprises a left diagonal brace and a right diagonal brace which are symmetrically arranged on the left and right of the upper chord arm, the lower parts of the left diagonal brace and the right diagonal brace are embedded in the first plate body and the second plate body, the left diagonal brace is arranged from bottom to top, and the right, the upper portion of the left diagonal brace is fixedly connected with the left side of the upper chord arm, the upper portion of the right diagonal brace is fixedly connected with the right side of the upper chord arm, the cross section of the upper chord arm is of a U-shaped cavity structure with an opening at the top, and concrete is poured in the U-shaped cavity structure.
The top of the left side wall of the U-shaped cavity structure of the upper chord arm is bent rightwards for 90 degrees to form a left ribbon board, the top of the right side wall of the U-shaped cavity structure of the upper chord arm is bent leftwards for 90 degrees to form a right ribbon board, and a gap for pouring concrete is formed between the left ribbon board and the right ribbon board.
The right side edge of the left ribbon board is bent downwards by 90 degrees to form a left reinforcing rib, and the right side edge of the right ribbon board is bent downwards by 90 degrees to form a right reinforcing rib.
The upper portions of the left diagonal brace and the right diagonal brace are vertically arranged flat structures, the flat structures are in contact with the side face of the upper chord arm and are welded into a whole in a spot mode, left and right through holes are correspondingly formed among the flat structures on the upper portion of the left diagonal brace, the flat structures on the upper portion of the right diagonal brace, the left side wall and the right side wall of the upper chord arm, connecting ribs penetrate through the through holes, the left ends and the right ends of the connecting ribs respectively protrude out of the flat structures on the left side and the right side and are welded into a whole with the flat structures, and the middle portions of the connecting ribs are embedded in concrete in the U-shaped cavity structure.
A plurality of through holes are formed in the bottom of the U-shaped cavity structure of the upper chord arm, the through holes are evenly arranged at intervals along the length direction of the upper chord arm, two adjacent through holes are symmetrically arranged around the connecting rib, a straight stay bar is vertically inserted into each through hole, the upper end of each straight stay bar extends out of the upper chord arm, and the lower end of each straight stay bar extends into and is embedded in the first plate body and the second plate body.
Adopt above-mentioned technical scheme, the utility model discloses a manufacturing process does:
(1) erecting a template, arranging a first steel bar framework in the template, arranging a straight stay bar, a left inclined stay bar and a right inclined stay bar at set positions, and binding the lower ends of the straight stay bar, the left inclined stay bar and the right inclined stay bar with the first steel bar framework into a whole;
(2) pouring concrete in the template, and forming a first plate body after the concrete is solidified;
(3) arranging a second steel bar framework on the first plate body, and binding the straight brace rod, the left diagonal brace rod and the right diagonal brace rod with the first steel bar framework into a whole;
(4) pouring concrete on the first plate body in the template, and forming a second plate body after the concrete is solidified;
(5) the upper chord arm moves downwards from the upper parts of the left diagonal brace and the right diagonal brace, the through hole at the bottom of the upper chord arm is correspondingly aligned with each straight brace, the upper end of each straight brace penetrates through the through hole and extends into the U-shaped cavity structure of the upper chord arm until the through hole formed in the flat structure at the upper part of the left diagonal brace and the through hole formed in the flat structure at the upper part of the right diagonal brace are correspondingly communicated with the through holes formed in the left side wall and the right side wall of the upper chord arm, and then the flat structure and the upper chord arm are subjected to spot welding to temporarily fix the upper chord arm;
(6) the left end and the right end of the connecting rib are respectively welded and fixed with the left flat structure and the right flat structure;
(7) pouring concrete into the U-shaped cavity structure of the upper chord arm to integrate the connecting rib, the straight stay bar and the upper chord arm;
(8) and finally, fixedly arranging an installation frame on the upper chord arm.
Adopt above-mentioned technical scheme, for prior art, the utility model discloses, following technological effect has:
1. the upper ends of the left diagonal brace and the right diagonal brace are arranged into flat structures, so that the contact area between the flat structures and the side surface of the upper chord arm is increased, and the support has stronger stability;
2. the flat structure is only spot-welded with the upper chord arm, so that the upper chord arm is temporarily fixed, the wall thickness of the upper chord arm is reduced as much as possible, and the weight of the upper chord arm is reduced;
3. the upper chord arm, the left diagonal brace and the right diagonal brace are connected into a whole through the connecting ribs, and compared with welding, the connecting mode has stronger supporting and connecting strength, welding is reduced, and support is provided for reducing the wall thickness of the upper chord arm;
4. the upper chord arm with the opening at the top is particularly suitable for pouring concrete in the U-shaped cavity structure of the upper chord arm, so that the concrete in the U-shaped cavity structure can be poured more compactly, and the connecting ribs and the straight support rods also play a role in ensuring that the concrete and the upper chord arm have good connecting strength;
5. the left ribbon board, the right ribbon board, the left reinforcing rib and the right reinforcing rib play a role in reinforcing the strength of the upper chord arm and further reinforcing the connection strength with concrete;
6. due to the arrangement of the straight stay bars, the arrangement density of the left inclined stay bar and the right inclined stay bar is reduced, so that the weight is also reduced, and the cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic structural view of a second embodiment of the upper chord arm of FIG. 1;
fig. 4 is a schematic structural view of a third embodiment of the upper chord arm in fig. 1.
Detailed Description
As shown in fig. 1 and 2, the open type steel reinforced concrete composite truss floor slab of the present invention comprises a truss framework, a first plate body 1 and a second plate body 2 which are horizontally arranged and vertically overlapped, the second plate body 2 is arranged on the upper portion of the first plate body 1, a first steel reinforcement framework 3 is arranged in the first plate body 1, a second steel reinforcement framework 4 is arranged in the second plate body 2, the lower portion of the truss framework is arranged in the first plate body 1 and the second plate body 2, an installation frame (not shown in the figure) is horizontally arranged on the top of the truss framework, the truss framework comprises an upper chord arm 6 and a plurality of groups of diagonal members, the upper chord arm 6 is horizontally arranged along the front-back direction, the diagonal members are uniformly arranged along the length direction of the upper chord arm 6, each group of diagonal members comprises a left diagonal member 7 and a right diagonal member 8 which are symmetrically arranged on the left and right sides of the upper chord arm 6, the lower portions of the left diagonal member 7 and the right diagonal member 8 are pre-embedded in, the left inclined stay bar 7 is obliquely arranged from bottom to top to right, the right inclined stay bar 8 is obliquely arranged from bottom to top to left, the upper portion of the left inclined stay bar 7 is fixedly connected with the left side of the upper chord arm 6, the upper portion of the right inclined stay bar 8 is fixedly connected with the right side of the upper chord arm 6, the cross section of the upper chord arm 6 is a U-shaped cavity structure 16 with an open top, and concrete 9 is poured into the U-shaped cavity structure 16.
The upper portions of the left inclined stay bar 7 and the right inclined stay bar 8 are both vertically arranged flat structures 10, the flat structures 10 are in contact with the side face of the upper chord arm 6 and are integrated through spot welding, left and right through holes are correspondingly formed among the flat structures 10 on the upper portion of the left inclined stay bar 7, the flat structures 10 on the upper portion of the right inclined stay bar 8 and the left side wall and the right side wall of the upper chord arm 6, connecting ribs 11 penetrate through the through holes, the left ends and the right ends of the connecting ribs 11 respectively protrude out of the flat structures 10 on the left side and the right sides and are welded with the flat structures 10 into a whole, and the middle portions of the connecting ribs 11 are embedded in concrete 9 in the U-shaped cavity structures 16.
A plurality of through holes are formed in the bottom of the U-shaped cavity structure 16 of the upper chord arm 6, the through holes are evenly arranged at intervals along the length direction of the upper chord arm 6, two adjacent through holes are symmetrically arranged in the front and back direction of the connecting rib 11, a straight stay bar 12 is vertically inserted into each through hole, the upper end of each straight stay bar 12 extends out of the upper chord arm 6, and the lower end of each straight stay bar 12 extends into and is embedded in the first plate body 1 and the second plate body 2.
The utility model discloses a manufacturing process and step do:
(1) erecting a template, arranging a first steel reinforcement framework 3 in the template, arranging a straight stay bar 12, a left inclined stay bar 7 and a right inclined stay bar 8 at set positions, and binding the lower ends of the straight stay bar 12, the left inclined stay bar 7 and the right inclined stay bar 8 with the first steel reinforcement framework 3 into a whole;
(2) concrete is poured in the template, and a first plate body 1 is formed after the concrete is solidified;
(3) arranging a second steel reinforcement framework 4 on the first plate body 1, and binding a straight brace 12, a left inclined brace 7 and a right inclined brace 8 with the first steel reinforcement framework 3 into a whole;
(4) pouring concrete on the first plate body 1 in the template, and forming a second plate body 2 after the concrete is solidified;
(5) moving the upper chord arm 6 downwards from the upper parts of the left diagonal brace 7 and the right diagonal brace 8, enabling a through hole at the bottom of the upper chord arm 6 to be correspondingly aligned with each straight brace 12, enabling the upper end of each straight brace 12 to penetrate through the through hole and extend into a U-shaped cavity structure 16 of the upper chord arm 6 until a through hole is formed in a flat structure 10 at the upper part of the left diagonal brace 7, a through hole formed in a flat structure 10 at the upper part of the right diagonal brace 8 and through holes formed in the left side wall and the right side wall of the upper chord arm 6 correspondingly, and then spot-welding the flat structure 10 and the upper chord arm 6 to temporarily fix the upper chord arm 6;
(6) the connecting rib 11 penetrates through the through hole which is communicated with the left side and the right side, and the left end and the right end of the connecting rib 11 are respectively welded and fixed with the flat structure 10 on the left side and the flat structure 10 on the right side;
(7) concrete 9 is poured into the U-shaped cavity structure 16 of the upper chord arm 6, so that the connecting ribs 11, the straight stay bars 12 and the upper chord arm 6 are poured into a whole;
(8) finally, a mounting frame is fixedly arranged on the upper chord arm 6.
Example two: as shown in fig. 3, this embodiment is different from the first embodiment in that the top of the left side wall of the U-shaped cavity structure 16 of the upper chord arm 6 is bent to the right by 90 ° to form a left lath 5, the top of the right side wall of the U-shaped cavity structure 16 of the upper chord arm 6 is bent to the left by 90 ° to form a right lath 13, and a gap for pouring concrete is formed between the left lath 5 and the right lath 13.
Example three: as shown in fig. 4, this embodiment is different from the second embodiment in that the right side edge of the left strip 5 is bent downward by 90 ° to form a left reinforcing rib 14, and the right side edge of the right strip 13 is bent downward by 90 ° to form a right reinforcing rib 15.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.

Claims (5)

1. The utility model provides an opening type steel concrete composite truss floor, includes truss skeleton, level setting and coincide's first plate body and second plate body from top to bottom, and the second plate body is located first plate body upper portion, is provided with first steel reinforcement skeleton in the first plate body, is provided with second steel reinforcement skeleton in the second plate body, and the lower part setting of truss skeleton is inside first plate body and second plate body, and the top level of truss skeleton is provided with installation frame, its characterized in that: the truss framework comprises an upper chord arm and a plurality of groups of diagonal bracing members, the upper chord arm is horizontally arranged along the front-back direction, the diagonal bracing members are uniformly arranged along the length direction of the upper chord arm, each group of diagonal bracing members comprises a left diagonal bracing and a right diagonal bracing which are symmetrically arranged about the upper chord arm, the lower parts of the left diagonal bracing and the right diagonal bracing are embedded in a first plate body and a second plate body, the left diagonal bracing is obliquely arranged from bottom to right, the right diagonal bracing is obliquely arranged from bottom to top to left, the upper part of the left diagonal bracing is fixedly connected with the left side of the upper chord arm, the upper part of the right diagonal bracing is fixedly connected with the right side of the upper chord arm, the cross section of the upper chord arm is a U-shaped cavity structure with an open top, and concrete is poured in the U.
2. The open type steel reinforced concrete composite truss floor of claim 1, wherein: the top of the left side wall of the U-shaped cavity structure of the upper chord arm is bent rightwards for 90 degrees to form a left ribbon board, the top of the right side wall of the U-shaped cavity structure of the upper chord arm is bent leftwards for 90 degrees to form a right ribbon board, and a gap for pouring concrete is formed between the left ribbon board and the right ribbon board.
3. The open type steel reinforced concrete composite truss floor of claim 2, wherein: the right side edge of the left ribbon board is bent downwards by 90 degrees to form a left reinforcing rib, and the right side edge of the right ribbon board is bent downwards by 90 degrees to form a right reinforcing rib.
4. An open type steel reinforced concrete composite truss floor as claimed in claim 1, 2 or 3, wherein: the upper portions of the left diagonal brace and the right diagonal brace are vertically arranged flat structures, the flat structures are in contact with the side face of the upper chord arm and are welded into a whole in a spot mode, left and right through holes are correspondingly formed among the flat structures on the upper portion of the left diagonal brace, the flat structures on the upper portion of the right diagonal brace, the left side wall and the right side wall of the upper chord arm, connecting ribs penetrate through the through holes, the left ends and the right ends of the connecting ribs respectively protrude out of the flat structures on the left side and the right side and are welded into a whole with the flat structures, and the middle portions of the connecting ribs are embedded in concrete in the U-shaped cavity structure.
5. The open type steel reinforced concrete composite truss floor of claim 4, wherein: a plurality of through holes are formed in the bottom of the U-shaped cavity structure of the upper chord arm, the through holes are evenly arranged at intervals along the length direction of the upper chord arm, two adjacent through holes are symmetrically arranged around the connecting rib, a straight stay bar is vertically inserted into each through hole, the upper end of each straight stay bar extends out of the upper chord arm, and the lower end of each straight stay bar extends into and is embedded in the first plate body and the second plate body.
CN201921182718.1U 2019-07-25 2019-07-25 Open type steel reinforced concrete composite truss floor Active CN210530084U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921182718.1U CN210530084U (en) 2019-07-25 2019-07-25 Open type steel reinforced concrete composite truss floor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921182718.1U CN210530084U (en) 2019-07-25 2019-07-25 Open type steel reinforced concrete composite truss floor

Publications (1)

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CN210530084U true CN210530084U (en) 2020-05-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110284643A (en) * 2019-07-25 2019-09-27 河南绿建建筑科技有限公司 A kind of opening steel reinforced concrete composite truss floor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110284643A (en) * 2019-07-25 2019-09-27 河南绿建建筑科技有限公司 A kind of opening steel reinforced concrete composite truss floor

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