CN112609882A - Exempt from to tear open die block light steel truss building carrier plate - Google Patents

Exempt from to tear open die block light steel truss building carrier plate Download PDF

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Publication number
CN112609882A
CN112609882A CN202011493058.6A CN202011493058A CN112609882A CN 112609882 A CN112609882 A CN 112609882A CN 202011493058 A CN202011493058 A CN 202011493058A CN 112609882 A CN112609882 A CN 112609882A
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CN
China
Prior art keywords
bottom die
light steel
disassembly
steel
free bottom
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Pending
Application number
CN202011493058.6A
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Chinese (zh)
Inventor
周剑
田春雨
王欢欢
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China Academy of Building Research CABR
CABR Technology Co Ltd
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China Academy of Building Research CABR
CABR Technology Co Ltd
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Application filed by China Academy of Building Research CABR, CABR Technology Co Ltd filed Critical China Academy of Building Research CABR
Priority to CN202011493058.6A priority Critical patent/CN112609882A/en
Publication of CN112609882A publication Critical patent/CN112609882A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work

Abstract

The invention discloses a bottom die disassembly-free light steel truss floor support plate which is formed by connecting a bottom die disassembly-free and a light steel truss through connecting pieces. Wherein the disassembly-free bottom die is made of materials with higher tensile strength, such as fiber cement boards, UHPC thin plates, glass magnesium flat plates and the like; the light steel truss is formed by welding an upper chord steel pipe, a lower chord light steel and web member steel bars; the connecting piece can adopt a positive beating mode or a reverse beating mode and is reliably connected with the bottom die and the lower chord light steel. The invention is suitable for floor systems or roof systems in industrial and civil buildings and general structures in various earthquake-proof fortification intensity areas, and is suitable for structural systems including concrete structures, steel structures, combined structures and the like. Compared with the common floor bearing plate, the invention can realize the combined stress of the bottom die and the truss, improve the stability of the upper chord, give full play to the material strength and save the material consumption.

Description

Exempt from to tear open die block light steel truss building carrier plate
Technical Field
The invention relates to the technical field of floor slabs, in particular to a floor support plate technology, and specifically relates to a light steel truss floor support plate without detaching a bottom die.
Background
The floor bearing plate technology has more application experience in the field of steel structures. A floor deck is a member that bears construction load during a construction stage and functions as a floor bottom form, and is generally formed by connecting a plurality of steel bar trusses and bottom forms. The core of the steel bar truss floor support plate technology is a bottom die form and a connection form of the steel bar truss and the bottom die.
The bottom die of the floor support plate which is the earliest and used floor support plate is generally made of thin steel plates, and the steel bar truss and the bottom die are connected by resistance spot welding. The form is convenient for the truss to be connected with the bottom die, and the floor support plate has good integrity. The bottom die has two forms of non-dismantling and dismantling, generally, the bottom die can not be dismantled for buildings with suspended ceilings, and the bottom die generally adopts a galvanized steel plate with the thickness not less than 0.5 mm; when the bottom die is generally required to be dismantled for the building without the suspended ceiling, the bottom die can be made of a non-galvanized steel plate, and the thickness of the bottom die is not smaller than 0.4 mm. For most projects such as houses and the like, a suspended ceiling is not generally arranged, the bottom die needs to be detached at the moment, but the steel bottom die is inconvenient to detach, and after the steel bottom die is detached, the steel bars of the truss are exposed to form rusty spots, so that the steel bottom die is not easy to treat.
In order to solve the problem of dismantling the bottom die of the floor support plate, the detachable floor support plate is transported as required. The die block of removable floor carrier plate generally adopts plastic composite board, aluminum alloy plate, bamboo offset plate etc. (10 ~ 20mm thick), and steel bar truss passes through special connecting piece with the die block to be connected, and special connecting piece generally comprises fixed fastener and screw, is convenient for very much demolish the die block. The standard layer can be used repeatedly after the bottom die is removed. The detachable floor support plate realizes the easy removal of the bottom die, but the flatness of the removed bottom die is still not very high, and the detachable floor support plate still needs to be decorated and processed as a common cast-in-place plate.
Because the effect of reuse is limited after removable floor support plate die block demolishs in the actual engineering, the floor bottom surface still needs traditional decoration processing after the die block is demolishd, considers present prefabricated building to the realistic problems such as the requirement of assembly rate, the application of floor support plate in concrete structure in addition, and the floor support plate technique that the die block exempted from to demolish is used and is given birth to. The bottom die in the disassembly-free floor support plate is made of non-metal flat plates (10-20 mm thick) such as finished fiber cement plates, glass magnesium flat plates, UHPC thin plates and the like, and the steel bar truss is fixedly connected with the bottom die through a special connecting piece.
From the above, the floor deck technology is developing towards the general ideas of 'mold removal free' and 'support free', and the application range is wider and wider, including steel structure, fabricated concrete, combined structure and the like.
The bottom die disassembly-free floor support plate technology is a good research idea, and at present, two application forms are mainly adopted:
the 1 st: the steel bar truss is arranged in a mode of referring to the concrete laminated plate, the steel bar truss can be regarded as a light and standardized laminated plate, and the 'detachment-free mode' is realized, but because the space between the steel bar trusses is large (generally 600mm), temporary support still needs to be arranged in the construction stage, and the 'support-free' is not realized.
The 2 nd: the steel bar truss is arranged by referring to a common floor bearing plate, the space between the trusses is generally 200mm, and the support can be avoided, but because the bottom die and the steel bar truss cannot be combined to bear force, the load in the construction stage is still borne by the steel bar truss, so that the steel consumption of the steel bar truss is large, and the steel bar truss is not economical.
From the above analysis, the current floor support plate technology is developed rapidly, but still has the problems of insufficient economy, limited application range and the like, and in order to solve the problems, a novel floor support plate technology is needed, so that the economy and the applicability are considered while the 'mold disassembly free' and the 'support free' are realized.
Disclosure of Invention
The invention aims to provide a disassembly-free bottom die light steel truss floor support plate which is formed by connecting a disassembly-free bottom die and a light steel truss through connecting pieces. The invention can realize the combined stress of the bottom die and the truss, improve the stability of the upper chord, give full play to the strength of materials and save the material consumption.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a disassembly-free bottom die light steel truss floor support plate which is characterized by comprising a disassembly-free bottom die and a plurality of light steel trusses positioned on the disassembly-free bottom die, wherein each light steel truss is connected with the disassembly-free bottom die through a plurality of connecting pieces; each light steel truss is respectively formed by welding an upper chord steel pipe, two web member steel bars and two lower chord light steel; the end parts of the light steel trusses are respectively provided with a support transverse rib and a support vertical rib; each connecting piece is reliably connected with the disassembly-free bottom die and the light steel truss in a positive beating or reverse beating mode; and a plurality of pulling pieces or dovetail grooves are uniformly distributed on the top surface of the disassembly-free bottom die.
Further, the connecting piece adopts stainless steel self-tapping screws or bolts; when the connecting piece adopts the tapping screw, the tapping screw is directly screwed into the disassembly-free bottom die in a rotating way; when the connecting piece adopts a bolt, a hole needs to be drilled in advance, and a bolt rod is connected with the disassembly-free bottom die in a rib planting mode.
The invention provides a disassembly-free bottom die light steel truss floor support plate which is suitable for floor systems or roof systems in industrial and civil buildings and general structures in various earthquake-proof fortification intensity areas, and is suitable for structural systems comprising concrete structures, steel structures, combined structures and the like. Compared with the common floor support plate, the invention has the following advantages:
1) the upper chord of the light steel truss adopts a steel pipe, so that the problem that the maximum unsupported span of the traditional floor support plate is mostly controlled by the instability of the steel bar of the upper chord of the steel bar truss is solved, the stable stress limit value of the upper chord can be improved, and the strength advantage of the material is fully exerted.
2) The lower chord of the light steel truss is made of light steel, so that the light steel truss is convenient to connect with the bottom die, and the connection quality is easy to guarantee.
3) The bottom die and the light steel truss form a combined member, bear load together and reduce the steel consumption of the light steel truss.
4) The construction is convenient, the temporary support can not be arranged under the general condition, and the 'mould disassembly free' and the 'support free' can be realized at the same time.
Drawings
Fig. 1 is a three-dimensional schematic view of a light steel truss floor deck without detaching a bottom die according to an embodiment of the present invention.
Fig. 2 (a) and (b) are schematic structural diagrams of a plane and a longitudinal section of a non-dismantling bottom die light steel truss floor deck according to an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of a light steel truss floor deck without removing a bottom mold according to an embodiment of the present invention.
Fig. 4 (a) and (b) are respectively schematic structural diagrams of a pull piece and a dovetail groove arranged on the top surface of a non-dismantling bottom die light steel truss floor deck according to an embodiment of the present invention.
Fig. 5 (a) - (d) are schematic diagrams of different forms of connecting members and connecting detailed structures of a non-dismantling bottom die light steel truss floor deck according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a support transverse rib and a support vertical rib of a bottom die removal-free light steel truss floor deck according to an embodiment of the invention.
Fig. 7 is a schematic view of the construction of a light steel truss concrete slab formed by a non-dismantling bottom die light steel truss floor deck according to an embodiment of the present invention.
Fig. 8 is a schematic view of a connection structure of a bottom-die-removal-free light steel truss floor support plate and a steel beam support according to an embodiment of the present invention.
Fig. 9 is a schematic view of a connection structure between a light steel truss floor support plate without a detachable bottom die and a concrete beam or a wall support according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
In order to better understand the present invention, an application example of the light steel truss floor deck without detaching the bottom die is described in detail below.
Referring to fig. 1 to 3, the disassembly-free bottom die light steel truss floor support plate according to the embodiment of the invention includes a disassembly-free bottom die 1 and a plurality of light steel trusses 2 located on the disassembly-free bottom die 1, and each light steel truss 2 is connected to the disassembly-free bottom die 1 through a connecting member 3. The end parts of the light steel trusses 2 are respectively provided with a support transverse rib 4 and a support vertical rib 5 which are used for supporting the support. The non-dismantling bottom die 1 is 600-2400 mm wide B, and the length L is determined according to room size and stress calculation. The distance between the light steel trusses 2 is 300-600 mm.
The following describes specific implementations of the components in the present embodiment, respectively:
the non-dismantling bottom die 1 can be made of fiber cement boards, glass magnesium flat boards, UHPC (Ultra-High Performance Concrete) thin boards and other finished boards, and the thickness of the non-dismantling bottom die 1 is 10-20 mm. Referring to fig. 4, in order to enhance the connection between the detachment-free bottom mold 1 and the concrete, a tie piece 11 or a dovetail groove 12 may be disposed on the top surface of the detachment-free bottom mold 1, the tie piece 11 may be a stainless steel wire in a shape like a Chinese character 'ji', and the lower end of the tie piece 11 is anchored in the detachment-free bottom mold 1, and the diameter of the stainless steel wire is 2-4 mm. The dovetail groove 12 can be reserved by a die when a bottom-dismantling-free template material is produced, the width of the top of a notch of the dovetail groove 12 is 20-30 mm, and the depth of the notch is 5-10 mm;
referring to fig. 3, each light steel truss 2 has the same structure and is formed by welding an upper chord steel pipe 21, two web member steel bars 22 and two lower chord light steel bars 23, the width b of the light steel truss is 100-200 mm, the height h of the light steel truss is 95-225 mm, the upper chord steel pipe 21 is generally a light round steel pipe, the diameter of the light round steel pipe is 25-50 mm, and the wall thickness of the light steel truss is 2-4 mm; the web member steel bar 22 is wave-shaped and is generally formed by continuously bending one steel bar (as shown in fig. 2 (b)), and the pitch distance c is 150-250 mm; the lower chord light steel 23 can be L-shaped, C-shaped or rectangular light steel, which is respectively shown in (a) - (d) of FIG. 5, the cross-sectional height of the lower chord light steel 23 is generally 25mm, the cross-sectional width is 25-50 mm, and the wall thickness is 2-4 mm. In addition, the upper chord steel pipe 21, the web member steel bars 22 and the lower chord light steel 23 form a space truss together with the non-dismantling bottom die 1 through the connecting piece 3.
The lower chord light steel 23 of each light steel truss 2 is connected with the disassembly-free bottom die 1 through a connecting piece 3, the connecting piece 3 can adopt a forward hitting mode or a backward hitting mode, the connecting piece 3 can adopt stainless steel tapping screws or bolts, the L-shaped light steel is connected with the disassembly-free bottom die 1 through the connecting piece 3 in a forward hitting mode from top to bottom in (a) in fig. 5, the L-shaped light steel is connected with the disassembly-free bottom die 1 through the connecting piece 3 in a backward hitting mode from bottom to top in (b) in fig. 5, the C-shaped light steel is connected with the disassembly-free bottom die 1 through the connecting piece 3 in a forward hitting mode in (C) in fig. 5, and the rectangular light steel is connected with the disassembly-free bottom die 1 through the connecting piece 3 in a forward hitting mode in (d) in fig. 5. When the direct hitting mode is adopted, the connecting piece 3 penetrates through the lower chord lightweight steel 23 from top to bottom and penetrates into the disassembly-free bottom die 1 for anchoring; when the reverse beating mode is adopted, the connecting piece 3 sequentially penetrates through the non-dismantling bottom die 1 and the lower chord light steel 23 from bottom to top and is fastened on the lower chord light steel 23 by adopting the matched nut 31. When the connecting piece 3 adopts a self-tapping screw, the screw can be directly screwed into the disassembly-free bottom die 1 without drilling holes generally; when the bolt is adopted, the hole can be drilled in advance, and the bolt rod is connected with the disassembly-free bottom die 1 in a rib planting mode.
Referring to fig. 6, the end of the light steel truss 2 is provided with a support transverse rib 4 and a support vertical rib 5 for supporting the support, wherein the two ends of the support transverse rib 4 are welded with the inner side of the corresponding lower chord light steel 23, the upper end of the support vertical rib 5 is welded with the bottom surface of the upper chord steel pipe 21, and the lower end side of the support vertical rib 5 is welded with the middle side of the support transverse rib 4. The diameter of the horizontal rib 4 of support and the vertical rib 5 of support is 12 ~ 16 mm.
Referring to fig. 7, during construction, a plurality of detachment-free bottom die light steel truss floor support plates are spliced together, a splicing seam 8 is formed between two adjacent detachment-free bottom die light steel truss floor support plates, then lower transverse steel bars 61 and lower longitudinal steel bars 62 are laid at the lower chord light steel 23, wherein the lower transverse steel bars 61 are perpendicular to the light steel trusses 2 and are arranged at the upper parts of the lower chord light steel 23, and the lower longitudinal steel bars 62 are parallel to the light steel trusses 2 and are arranged at the lower sides of the lower transverse steel bars 61; and then laying an upper transverse steel bar 63 and an upper longitudinal steel bar 64 at the upper chord steel pipe 21, wherein the upper transverse steel bar 63 is perpendicular to the light steel truss 2 and is arranged at the upper part of the upper chord steel pipe 21, and the upper longitudinal steel bar 64 is parallel to the light steel truss 2 and is arranged at the lower side of the upper transverse steel bar 63. The number of the upper and lower transverse steel bars and the number of the upper and lower longitudinal steel bars should meet the stress calculation requirement in the use stage, the diameter of the lower transverse steel bar 61 and the diameter of the lower longitudinal steel bar 62 are not less than 8mm, and the distance between the lower transverse steel bar and the lower longitudinal steel bar is not less than 200 mm. And after the steel bars are laid, concrete 7 is poured, and the light steel truss floor bearing plate, the steel bars laid on site and the cast-in-place concrete form the light steel truss concrete slab. The thickness of the concrete slab is generally the height of the light steel truss plus 25 mm.
Referring to fig. 8 and 9, when the bottom die disassembly-free light steel truss floor support plate is used for a steel structure or a combined structure, the support is generally a steel beam 10, the vertical ribs 5 of the support are welded and fixed with the top surface of the steel beam 10 during installation, and at the moment, temporary supports are not required to be arranged at the end parts of the floor support plate; when the floor bearing plate is used for a concrete structure, the support is generally a concrete beam or wall 11, support angle steel 12 is arranged on the side face of the top of the concrete beam or wall 11 in advance, the support angle steel 12 is fixed on the concrete beam or wall 10 through a fixing piece 15, the fixing piece 15 can adopt an anchor bolt, a screw rod and the like, and the end part of the light steel truss 2 is directly placed on the support angle steel 12 during installation without arranging a temporary support. After installation, the support additional upper rib 13 and the support additional lower rib 14 are arranged at the support, the reinforcing steel bars at the other parts are bound at the same time, and concrete is poured to complete floor slab construction.
The invention provides a disassembly-free bottom die light steel truss floor support plate which is suitable for floor systems or roof systems in industrial and civil buildings and general structures in various earthquake-proof fortification intensity areas, and is suitable for structural systems comprising concrete structures, steel structures, combined structures and the like. Compared with the common floor bearing plate, the invention can realize the combined stress of the bottom die and the truss, improve the stability of the upper chord, give full play to the material strength and save the material consumption.
In the description herein and in the drawings, the products and methods of the present invention are described in terms of particular shapes, materials, or process sequences, and specific parameters are provided for illustrative purposes with respect to specific embodiments. It should be understood, however, that the detailed description is not intended to limit the invention; that is, variations and modifications in the form, material, or process sequence may be made while remaining within the spirit and scope of the invention.

Claims (9)

1. The disassembly-free bottom die light steel truss floor support plate is characterized by comprising a disassembly-free bottom die (1) and a plurality of light steel trusses (2) positioned on the disassembly-free bottom die (1), wherein each light steel truss (2) is connected with the disassembly-free bottom die (1) through a plurality of connecting pieces (3); each light steel truss (2) is respectively formed by welding an upper chord steel pipe (21), two web member steel bars (22) and two lower chord light steel bars (23); the end parts of the light steel trusses (2) are respectively provided with a support transverse rib (4) and a support vertical rib (5); each connecting piece (3) is reliably connected with the disassembly-free bottom die (1) and the light steel truss (2) in a positive beating or reverse beating mode; the top surface of the disassembly-free bottom die (1) is uniformly provided with a plurality of tie pieces (11) or dovetail grooves (12).
2. The detachment-free bottom die light steel truss floor deck according to claim 1, wherein the detachment-free bottom die (1) is made of a finished board material including a fiber cement board, a glass magnesium flat board or a UHPC thin board.
3. The disassembly-free bottom die light steel truss floor support plate according to claim 1, wherein the tie (11) is made of a stainless steel wire in a shape like a Chinese character 'ji', the lower end of the tie (11) is anchored in the disassembly-free bottom die (1), and the diameter of the stainless steel wire is 2-4 mm; the dovetail groove (12) utilize the mould to reserve when production is exempted from to tear open die block (1) and is established, and the notch top width of dovetail groove (12) is 20 ~ 30mm, and the degree of depth is 5 ~ 10 mm.
4. The detachment-free bottom die light steel truss floor deck according to claim 1, wherein the connecting piece (3) is made of stainless steel tapping screws or bolts; when the connecting piece (3) adopts the tapping screw, the tapping screw is directly screwed into the non-dismantling bottom die (1) in a rotating way; when the connecting piece (3) adopts a bolt, a hole needs to be drilled in advance, and a bolt rod is connected with the disassembly-free bottom die (1) in a rib planting mode.
5. The disassembly-free bottom die light steel truss floor deck according to claim 1, wherein the upper chord steel pipe (21) is a light round steel pipe, the diameter of the light round steel pipe is 25-50 mm, and the wall thickness of the light round steel pipe is 2-4 mm; the web member steel bars (22) are wavy and are formed by continuously bending one steel bar, and the pitch distance is 150-250 mm; the lower chord light steel (23) is L-shaped, C-shaped or rectangular light steel, the height of the lower chord light steel (23) is 25mm, the width of the lower chord light steel is 25-50 mm, and the wall thickness of the lower chord light steel is 2-4 mm.
6. The disassembly-free bottom die light steel truss floor deck according to claim 1, wherein two ends of the support transverse ribs (4) are welded to the inner sides of the corresponding lower chord light steel (23), the upper ends of the support vertical ribs (5) are welded to the bottom surfaces of the upper chord steel pipes (21), and the lower end side surfaces of the support vertical ribs (5) are welded to the middle side surfaces of the support transverse ribs (4).
7. The disassembly-free bottom die light steel truss floor support plate as claimed in claim 1, wherein the disassembly-free bottom die (1) has a thickness of 10-20 mm and a width of 600-2400 mm.
8. The disassembly-free bottom die light steel truss floor deck according to claim 1, wherein the light steel trusses (2) have a width of 100-200 mm, a height of 95-225 mm and a distance of 300-600 mm.
9. The disassembly-free bottom die light steel truss floor deck according to claim 1, wherein the diameter of the support transverse ribs (4) and the support vertical ribs (5) is 12-16 mm.
CN202011493058.6A 2020-12-16 2020-12-16 Exempt from to tear open die block light steel truss building carrier plate Pending CN112609882A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113338507A (en) * 2021-05-26 2021-09-03 中国五冶集团有限公司 Construction method for splicing steel bar truss floor bearing plate and precast beam

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Publication number Priority date Publication date Assignee Title
JP2000355910A (en) * 1999-06-16 2000-12-26 Kondo Kozai Kk Space truss with concrete extra form for civil engineering such as bridge floor
CN205063126U (en) * 2015-10-14 2016-03-02 山东隆和节能科技股份有限公司 Belted steel pipe truss superimposed sheet
CN106760218A (en) * 2016-12-08 2017-05-31 北京建筑大学 A kind of steel pipe steel bar girder
CN107542196A (en) * 2017-09-04 2018-01-05 山东省建筑科学研究院 Prestressed concrete bidirectional laminated slab and preparation method
KR20180043127A (en) * 2016-10-19 2018-04-27 (주)엔테이지 Deck Having Truss Girder with stiffened top-chord of formed steel section
CN110616840A (en) * 2019-09-02 2019-12-27 吉林建筑大学 Concrete laminated slab bottom plate based on steel truss and cement plate and preparation method
CN111305440A (en) * 2020-03-24 2020-06-19 福建省永富建设集团有限公司 Seamless connection system of assembled steel structure beam column member and floor bearing plate and construction method
CN211572182U (en) * 2020-01-08 2020-09-25 洛阳圣工建材科技有限公司 Exempt from to tear open and decorate steel bar truss building carrier plate
CN112064850A (en) * 2020-10-20 2020-12-11 山东省建设科技与产业化中心有限公司 Truss floor plate

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000355910A (en) * 1999-06-16 2000-12-26 Kondo Kozai Kk Space truss with concrete extra form for civil engineering such as bridge floor
CN205063126U (en) * 2015-10-14 2016-03-02 山东隆和节能科技股份有限公司 Belted steel pipe truss superimposed sheet
KR20180043127A (en) * 2016-10-19 2018-04-27 (주)엔테이지 Deck Having Truss Girder with stiffened top-chord of formed steel section
CN106760218A (en) * 2016-12-08 2017-05-31 北京建筑大学 A kind of steel pipe steel bar girder
CN107542196A (en) * 2017-09-04 2018-01-05 山东省建筑科学研究院 Prestressed concrete bidirectional laminated slab and preparation method
CN110616840A (en) * 2019-09-02 2019-12-27 吉林建筑大学 Concrete laminated slab bottom plate based on steel truss and cement plate and preparation method
CN211572182U (en) * 2020-01-08 2020-09-25 洛阳圣工建材科技有限公司 Exempt from to tear open and decorate steel bar truss building carrier plate
CN111305440A (en) * 2020-03-24 2020-06-19 福建省永富建设集团有限公司 Seamless connection system of assembled steel structure beam column member and floor bearing plate and construction method
CN112064850A (en) * 2020-10-20 2020-12-11 山东省建设科技与产业化中心有限公司 Truss floor plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113338507A (en) * 2021-05-26 2021-09-03 中国五冶集团有限公司 Construction method for splicing steel bar truss floor bearing plate and precast beam

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Application publication date: 20210406