CN113503040A - Embedded type lower chord herringbone frame rib plate assembling type double T plate construction method - Google Patents
Embedded type lower chord herringbone frame rib plate assembling type double T plate construction method Download PDFInfo
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- CN113503040A CN113503040A CN202110935731.5A CN202110935731A CN113503040A CN 113503040 A CN113503040 A CN 113503040A CN 202110935731 A CN202110935731 A CN 202110935731A CN 113503040 A CN113503040 A CN 113503040A
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- lower chord
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/38—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels
Abstract
The invention relates to a construction method of an assembled double T plate of a herringbone frame rib plate of an embedded lower chord, which comprises the following steps: (1) a-shaped frames, wing plates, lower chords, end rods and stabilizer bars are simultaneously prefabricated in parallel in a prefabrication factory; (2) transporting the prefabricated components to an assembly site, assembling the herringbone frame and the lower chord member, and connecting two herringbone frame rib plates by adopting a stabilizing rod; (3) flatly laying wing plates on a propeller strut, placing the upper end of the propeller strut into a hole of the wing plate, and installing a tool steel strand to tension the wing plates of the wing plates; (4) a rib body is arranged in the rod body of the lower chord rod, and the lower chord rod is tensioned by the tensioning rib body; (5) hoisting the integrated assembled double T-shaped plates of the herringbone frame rib plates of the embedded lower chord to a required position; (6) and (4) determining whether the stabilizer bar is taken off or not according to the situation, and disassembling the tool steel strand to finish the installation. The construction method for the assembled double-T plate of the herringbone frame rib plate with the embedded lower chord adopts the split prefabrication and field assembly, is convenient for transportation and storage of a storage yard, saves the cost, improves the convenience, greatly reduces the construction period, brings economic benefits, has wide application prospect, and brings great promotion effect on the development of an assembled building.
Description
Technical Field
The invention relates to the technical field of concrete structures in civil engineering, in particular to an assembled double-T plate, and specifically relates to a construction method of an assembled double-T plate of a herringbone frame rib plate with embedded lower chords.
Background
In recent years, the assembly type structure is becoming the development trend of the building industry more and more, and the production and manufacturing of the prefabricated component are indispensable important contents, wherein the beam and the plate are integrated into a whole by the double-T plate in a unique structural form, so that the double-T plate has good structural performance, high construction speed and low cost, and can be made into a large-span, large-coverage-area and economic floor and roof bearing component. The double-T plate comprises a wing plate and two rib plates, wherein the wing plate can be used as a direct bearing surface of an external load to have the function of a plate, and also used as a flange of the T-shaped beam to combine the beam plate into a whole. The wing plate has the characteristics of multiple functions of one material, and compared with the traditional beam plate system, the double-T plate can save materials and reduce working procedures.
When the span of the double-T plate is large, the large overall size of the double-T plate occupies large space and is limited by transportation, so that the double-T plate has to be manufactured on site. The problem that the double-T plate is manufactured on site still exists, namely the huge volume of the integral double-T plate occupies a large amount of storage yards, cannot meet the stacking requirement and is difficult to be widely applied. And even when the length of the double T-shaped plate is small, the double T-shaped plate occupies a large cargo space, so that the transport capacity is limited, the transportation cost is increased, the engineering progress is delayed, and the popularization of the double T-shaped plate is not facilitated. In addition, the field open cast-in-place manufacturing of the double T-shaped plates is also influenced by factors such as typhoon, heavy rain, low-temperature weather and the like, and the progress is also influenced. Practice proves that: the traditional construction method for integrally manufacturing the double T-shaped plate is a bottleneck which seriously restricts the construction period, often leads to the doubling of the construction period and can not embody the advantages of an assembled structure.
In the prior art, a technology for separately prefabricating a wing plate and a rib plate and then combining the wing plate and the rib plate into an integral double-T plate is provided, and the problems are solved in stages. However, practical and theoretical engineering studies have shown that: when the span of the double-T plate is large, along with the increase of the span, the increase of the self weight of the double-T plate is not linear increase, but nonlinear increase is formed, and the construction cost is also nonlinear increase. The main reason is that the height of the rib plate is increased in a non-linear mode, the self weight of the rib plate is increased in a non-linear mode, the rib plate is made into a truss mode, the problem can be solved, and the idea is limited due to the storage and transportation space required by the integral prefabrication of the truss, the complex reinforcing steel bars of the truss, the complex mold system and the high cost.
Therefore, to solve the above problems, further innovative methods are required.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a construction method for an embedded type double-T plate with a bottom chord herringbone frame rib plate assembly, which can be quickly and conveniently manufactured and transported and can improve the applicability and the universality of engineering application of the embedded type double-T plate.
In order to achieve the purpose, the construction method of the built-in type double-T plate with the herringbone frame rib plates with the lower chord members adopts the following technical scheme:
the herringbone frame rib plate assembly type double T plate comprises wing plates, herringbone frame rib plates and an embedded lower chord, the herringbone frame rib plates are arranged above the lower chord and connected with the lower chord, the wing plates are tiled above the herringbone frame rib plates and connected with the herringbone frame rib plates, the herringbone frame rib plates comprise at least two prefabricated herringbone frames, and the herringbone frame rib plates are assembled by taking a single herringbone frame as a basic unit.
The herringbone frame is a Y-shaped frame or an inverted splayed frame, and the V-shaped frame or the inverted V-shaped frame is collectively called a herringbone frame in the invention, and the herringbone frame is made of concrete, steel or steel concrete composite material.
The propeller strut is a whole and comprises a first limb and a second limb, the axes of the first limb and the second limb are set to be a set angle, and the upper ends of the first limb and the second limb are connected into a whole.
The herringbone frames are arranged along the axial direction of the lower chord, and the end parts of the adjacent herringbone frames are tightly propped against the end parts.
The propeller strut, the wing plate and the lower chord member form a vertical truss, the propeller strut is used as a web member of the truss to be integrally sheared (the first branch and the second branch are only subjected to axial force), the wing plate is used as an upper chord member (horizontally pressed), and the lower chord member is used as a lower tension chord member (horizontally). Compared with the integrally prefabricated truss or the double T-shaped plate with the rib plates arranged as the truss, the truss form saves materials and reduces self weight compared with a solid plate, but the prefabrication requires complicated and expensive moulds and complicated arrangement of ribs in the integral truss, so that the aforementioned advantages of the truss are partially offset. The herringbone frame rib plate is adopted, the web members of the truss are decomposed into simple basic units, the repetition rate is improved, the mold cost is saved, the reinforcement is standardized and simplified, the advantages of the solid type rib plate and the truss type rib plate are integrated, the respective defects are abandoned, and the herringbone frame rib plate is an optimized concept. Moreover, compared with the method for disassembling the truss web members into single tension or compression rod members, the method has the inconvenience of instable, complicated and difficult control in installation, and the herringbone frame has the advantages of both integrity and convenience in installation, and is also the optimal concept.
Further, the lower end of the propeller strut is provided with an embedded space for placing the embedded lower chord, the inner side of the propeller strut lower end, close to the embedded space, of the frame body is provided with an anti-skidding groove, and post-slurry is injected into the embedded space and used for connecting the lower chord and the anti-skidding groove together.
Furthermore, an anti-falling edge is arranged at the position, close to the embedded space, of the frame body at the lower end of the propeller strut, and post-slurry is injected into the embedded space and used for connecting the anti-falling edge and the lower chord together to prevent the lower chord from being separated from the propeller strut.
The lower chord is arranged in an embedded mode, the embedded lower chord is arranged inside the lower end of the propeller strut, and namely the rod body of the lower chord is arranged inside the propeller strut frame body.
Further, the lower chord is a hollow pipe body. The pipe body material is a concrete, steel or steel concrete composite material.
Furthermore, a rib body is additionally arranged in the pipe body, the rib body can apply prestress to tension the lower chord, the rib body is made of steel, carbon fiber or high-strength chemical materials, and the steel rib body is made of steel bars and prestressed ribs (steel strands, steel wires or prestressed thread steel bars and the like).
Holes are formed in the wing plates, and the upper ends of the herringbone brackets are arranged in the holes of the wing plates. The wing plate material is a concrete, steel or steel concrete composite material.
Furthermore, the wing plates are arranged in a sectional mode, the wing plates of each section are arranged into wing plates, holes are formed in the wing plates, and the upper ends of the lambdoidal frames are arranged in the holes of the wing plates.
Furthermore, the joint part of the lower chord and the propeller strut is provided with anti-skid bulges to prevent the lower end of the propeller strut and the lower chord from sliding, the anti-skid bulges are in a strip shape, a block shape or a point shape, and the materials are concrete, steel concrete composite materials, plastics or wood. The anti-skid protrusions and the lower chord are arranged into a whole, or are arranged into a split assembly or connected.
Further, the herringbone frame is provided with an anti-skidding groove at the joint of the herringbone frame and the lower chord, and an anti-skidding bulge with rear slurry coating the lower chord is arranged in the anti-skidding groove.
Furthermore, a wedging body is arranged between the upper end of the propeller strut and the inner hole of the wing plate.
The end part of the embedded type lower chord herringbone frame rib plate assembled type double T plate is provided with an end rod connecting wing plate and a lower chord rod, the end rod is used for bearing the pressure of the support, the end rod is vertically arranged, and the herringbone frame, the lower chord rod and the end rod are arranged in a vertical plane.
Furthermore, when the built-in type double T-shaped plate with the lower chord member A-frame rib plate is assembled on site, a temporary stabilizing rod in the horizontal direction can be additionally arranged between the A-frame rib plates and used for fixing the two assembled A-frame rib plates. The stabilizer bar is rod-shaped and is made of steel, concrete and steel concrete composite materials.
Furthermore, when the herringbone frame rib plate assembly type double T plate is assembled on site, a temporary tool steel strand parallel to the wing plate is additionally arranged at the upper part of the wing plate and used for tensioning the wing plate of the segmented wing plate and ensuring the integrity and stability of the double T plate in the hoisting process.
The embedded type double-T plate with the herringbone frame rib plates with the lower chord members is constructed by adopting the following construction method:
the first step is as follows: in a prefabrication factory, the herringbone frame, the wing plate, the lower chord, the end rod and the stabilizing rod are prefabricated in parallel;
the second step is that: transporting the prefabricated part to an assembly site, firstly assembling the herringbone frame and the lower chord member, and connecting two herringbone frame rib plates by adopting a stabilizing rod;
the third step: flatly laying wing plates on the propeller strut, placing the upper end of the propeller strut into a hole of the wing plates, and installing tool steel strands to tension the wing plates of the wing plates;
the fourth step: a rib body is arranged in the rod body of the lower chord rod, and the rib body is tensioned so as to tension the lower chord rod;
the fifth step: hoisting the assembled and integrated double T-shaped plates of the rib plates of the herringbone frame with the embedded lower chord to a required position;
and a sixth step: and (4) determining whether the stabilizer bar is taken off or not according to the situation, and detaching the tool steel strand to finish the installation.
Compared with the existing double T-shaped plates, the herringbone frame ribbed plate assembly type double T-shaped plate with the embedded lower chord has the following advantages:
1. the herringbone frame gives full play to the advantage of truss stress, reduces the dead weight of a rib plate of the herringbone frame, reduces materials with lower efficiency in a solid rib plate, improves the utilization rate of the materials, and enlarges the span of the double T plates in an efficient mode.
2. The herringbone frame rib plate takes a single herringbone frame as a basic unit, the prefabrication repetition rate is greatly improved, and the advantages and the strength of the prefabricated assembly type are exerted. After the solid rib plate is arranged into the truss type rib plate, a steel mould used in concrete prefabrication is more complex and the cost is increased sharply, and after the herringbone rib plate is adopted, the steel mould used in prefabrication is extremely simple and the cost is reduced remarkably, compared with a double T plate of the integral solid rib plate, the cost of the steel mould is reduced from ten-thousand-element level and million-element level to thousand-element level and hundred-element level, the defect that the prefabricated assembly type steel mould occupies a large ratio is completely improved, and the prefabricated assembly type steel mould is beneficial to application and popularization of a prefabricated assembly type; compared with the rib plate of the integral truss, the rib arrangement mode of the herringbone frame rib plate is standardized and simplified, the construction convenience is greatly improved, and the labor cost is reduced.
3. The steel mould cost of the wing plate of the sectional prefabricated wing plate is obviously reduced as the propeller strut.
4. The storage and transportation cost of the double T-shaped plates of the rib plates of the embedded type lower chord member is greatly reduced, and the convenience is obviously improved.
5. The double-T plate is assembled on site, and because each piece has reached the strength in advance, the double-T plate can be assembled in severe environments such as rainy days and low temperatures only under the condition that partial rainproof measures (such as a worker wearing an umbrella or a rain cape) are needed, and the construction speed is accelerated.
In a word, the embedded type lower chord A-frame rib plate double T plate can save cost, shorten the construction period (which is cost in many times), improve the efficiency, improve the construction convenience, and enable the double T plate to have wider application prospect, thereby being more suitable for being the optimal selection of an assembly type building.
Drawings
FIG. 1 is a side elevational view of a propeller strut of the present invention.
Fig. 2 is a side elevational view of the propeller strut erection position of the present invention.
Fig. 3 is a longitudinal section of the propeller strut of the present invention assembled with wing plates and lower chords.
Fig. 4 is a cross-sectional view of the propeller strut of the present invention assembled with wing plates and lower chords.
Fig. 5 is a cross-sectional view of the positional relationship of the inline lower chord and the man-brace of the present invention.
FIG. 6 is a longitudinal cross-sectional view of the positional relationship of the in-line lower chord and the A-bracket of the present invention.
FIG. 7 is a horizontal cross-sectional view of the positional relationship of the in-line lower chord and the A-bracket of the present invention.
FIG. 8 is a horizontal cross-sectional view showing the positional relationship between the stabilizer bar and the tool strand according to the present invention.
Reference numerals:
1A-bracket
11 first limb
12 second limb
13 anti-slip edge
14 space of inset
141 anti-slip groove
2 wing plate
3 Embedded lower chord
31 tendon body
32 anti-slip projection
4 end rod
5 post-slurry
6 tool steel strand
7 stabilizer bar
Detailed Description
In order to clearly understand the technical contents of the present invention, the following examples are given in detail.
Referring to fig. 1 to 8, the herringbone double-T plate of the embedded lower chord comprises a herringbone 1, a wing plate 2, an embedded lower chord 3 and an end rod 4. A herringbone frame 1 rib plate is arranged above an embedded lower chord 3 and connected with the embedded lower chord 3, a wing plate 2 is tiled above the herringbone frame 1 rib plate and connected with the herringbone frame 1 rib plate, an end rod 4 is connected with the wing plate 2 and the embedded lower chord 3, and the herringbone frame 1, the embedded lower chord 3 and the end rod 4 are arranged in a vertical plane. The rib plate of the herringbone frame 1 comprises a plurality of prefabricated herringbone frames 1, and the herringbone frames 1 are assembled by taking a single herringbone frame 1 as a basic unit. The propeller strut 1 is a whole and comprises a first branch 11 and a second branch 12, the axes of the first branch 11 and the second branch 12 are set to be a set angle, and the upper ends of the first branch 11 and the second branch 12 are connected into a whole. The herringbone frame is characterized in that an anti-falling edge 13 and an embedded space 14 are arranged at the lower end of the herringbone frame 1, an anti-slip groove 141 is formed in a frame body, close to the embedded space 14, at the lower end of the herringbone frame 1, a rib body 31 is arranged in a hollow pipe body of the embedded lower chord 3, an anti-slip bulge 32 is arranged at the embedded space 14 of the herringbone frame 1 on the embedded lower chord 3, and a rear slurry 5 is arranged between the embedded space 14 and the embedded lower chord 3. When the double-T plate is assembled, a temporary tool steel strand 6 parallel to the wing plate is additionally arranged at the upper part of the wing plate 2 and used for tensioning the wing plate of the segmented wing plate 2; a temporary horizontal stabilizer bar 7 can be additionally arranged between the rib plates of the A-bracket 1 and used for fixing two assembled rib plates of the A-bracket.
Example 1
The first step is as follows: prefabricating a propeller strut, a wing plate, an embedded lower chord and an end rod in parallel;
the second step is that: transporting the prefabricated parts to an assembly site, fixing two lower chords which are parallel to each other at a set position, buckling the herringbone frame on the lower chords from the upper part, injecting slurry into an embedded space of the herringbone frame so as to fix the herringbone frame and the lower chords, forming two parallel herringbone frame ribbed plates, and connecting the two herringbone frame ribbed plates by adopting a stabilizing rod;
the third step: flatly laying the wing plates on the propeller strut, and placing the upper end of the propeller strut into the hole of the wing plates;
the fourth step: embedding a rib body into the embedded lower chord body, and tensioning the rib body so as to tension the embedded lower chord;
the fifth step: and hoisting the assembled and integrated double T-shaped plates of the rib plates of the herringbone frame with the embedded lower chord to a required position.
The construction method for the assembled double-T plate of the herringbone frame rib plate with the embedded lower chord provided by the invention adopts the split prefabrication and field assembly, is convenient for transportation and storage of a storage yard, saves the cost, improves the convenience, greatly reduces the construction period, brings economic benefits, has wide application prospect, and brings great promotion effect on the development of an assembled building.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (10)
1. A construction method of an embedded type double T plate with a herringbone frame rib plate of a lower chord is characterized in that the embedded type double T plate with the herringbone frame rib plate of the lower chord comprises a wing plate, a herringbone frame rib plate and an embedded type lower chord, the herringbone frame rib plate is arranged above the lower chord and connected with the lower chord, the wing plate is tiled above the herringbone frame rib plate and connected with the herringbone frame rib plate, the herringbone frame rib plate comprises at least two prefabricated herringbone frames which are assembled by taking a single herringbone frame as a basic unit, the embedded type lower chord is arranged in the herringbone frame body, and the construction method comprises the following steps:
the first step is as follows: in a prefabrication factory, the herringbone frame, the wing plate, the lower chord, the end rod and the stabilizing rod are prefabricated in parallel;
the second step is that: transporting the prefabricated parts to an assembly site, firstly assembling the herringbone frame and the lower chord member, and connecting two herringbone frame rib plates by adopting a stabilizing rod;
the third step: flatly laying the wing plates on the propeller strut, placing the upper end of the propeller strut into the hole of the wing plates, and installing the wing plates of the tool steel strand tensioning wing plates;
the fourth step: a rib body is arranged in the lower chord rod body, and the rib body is tensioned so as to tension the lower chord rod;
the fifth step: hoisting the assembled and integrated double T-shaped plates of the rib plates of the herringbone frame with the embedded lower chord to a required position;
and a sixth step: and (4) determining whether the stabilizer bar is taken off or not according to the situation, and detaching the tool steel strand to finish the installation.
2. The method for constructing the ribbed assembled double-T plate of the in-line type lower chord herringbone frame according to claim 1, wherein the herringbone frame is integral and comprises a first branch limb and a second branch limb, the axes of the first branch limb and the second branch limb are set to be a preset angle, the upper ends of the first branch limb and the second branch limb are connected into a whole, the herringbone frame is arranged along the axis direction of the lower chord, and the end parts of the adjacent herringbone frame are abutted.
3. The method for constructing the assembled double-T plate of the ribbed slab of the herringbone bracket with the embedded lower chord as claimed in claim 1, wherein the lower end of the herringbone bracket is provided with an embedded space for placing the embedded lower chord, a frame body at the lower end of the herringbone bracket, which is close to the embedded space, is provided with an anti-slip groove, and the embedded space is filled with post-slurry for connecting the lower chord and the anti-slip groove together.
4. The method for constructing the assembled double-T plate by using the ribbed plates of the herringbone frame with the embedded lower chord as claimed in claim 1, wherein an anti-falling edge is arranged on the frame body at the lower end of the herringbone frame and close to an embedded space, and post-slurry is injected into the embedded space to connect the anti-falling edge and the lower chord together and prevent the lower chord from being vertically separated from the herringbone frame.
5. The method for constructing an assembled double-T plate as a ribbed floor of an in-line type lower chord according to claim 1, wherein the lower chord is provided with a hollow pipe body, and a rib body is additionally arranged in the pipe body and used for tensioning the lower chord by applying prestress.
6. The method for constructing the built-in type double-T plate with the herringbone frame ribs of the lower chord according to claim 1, wherein when the built-in type double-T plate with the herringbone frame ribs is assembled on site, temporary horizontal stabilizer bars are additionally arranged between the herringbone frame ribs for fixing two assembled herringbone frame ribs.
7. The method for constructing the built-in double-T plate with the herringbone frame rib plates of the lower chord according to claim 1, wherein holes are formed in the wing plates, and the upper ends of the herringbone frame are arranged in the holes of the wing plates.
8. The method of constructing an assembled double-T plate with a herringbone frame having an embedded lower chord as claimed in claim 1, wherein the wing plate is provided in a sectional type, each section of the wing plate is provided with a wing, a hole is formed in the wing, and the upper end of the herringbone frame is arranged in the hole of the wing.
9. The method for constructing the herringbone frame ribbed slab assembled double T-shaped slabs of the embedded lower chord of claim 1, wherein an anti-slip bulge is arranged at the joint of the lower chord and the herringbone frame and used for preventing the sliding of the lower end of the herringbone frame and the lower chord.
10. The method for constructing the herringbone frame floor assembled double-T plate of any one of claims 1 to 9, wherein end portions of the herringbone frame floor assembled double-T plate are provided with end rods for connecting the wing plates and the lower chord and bearing the pressure of a support, the end rods are vertically arranged, and the herringbone frame, the lower chord and the end rods are arranged in a vertical plane.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110935731.5A CN113503040B (en) | 2021-08-16 | 2021-08-16 | Embedded lower chord herringbone frame rib plate assembly type double-T plate construction method |
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| CN202110935731.5A CN113503040B (en) | 2021-08-16 | 2021-08-16 | Embedded lower chord herringbone frame rib plate assembly type double-T plate construction method |
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| CN113503040B CN113503040B (en) | 2023-09-29 |
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|---|---|---|---|---|
| US20050225172A1 (en) * | 2004-04-12 | 2005-10-13 | Lionel Brightwell | Open web trimmable truss with self locking joint |
| CN202688857U (en) * | 2012-05-28 | 2013-01-23 | 中铁第一勘察设计院集团有限公司 | Steel-concrete combined trussed beam |
| CN110005124A (en) * | 2019-02-25 | 2019-07-12 | 上海城建建设实业(集团)有限公司 | The construction method of assembled T plate |
| CN209799160U (en) * | 2019-02-25 | 2019-12-17 | 上海城建建设实业(集团)有限公司 | split integrated type double-T plate structure for concrete member |
| CN111139958A (en) * | 2020-02-24 | 2020-05-12 | 吴美君 | Building floor heat preservation and sound insulation system and construction method thereof |
| CN212317492U (en) * | 2020-01-14 | 2021-01-08 | 福建建工集团有限责任公司 | Vertical pre-buried threading pipe structure in roof beam of conveniently taking over |
-
2021
- 2021-08-16 CN CN202110935731.5A patent/CN113503040B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050225172A1 (en) * | 2004-04-12 | 2005-10-13 | Lionel Brightwell | Open web trimmable truss with self locking joint |
| CN202688857U (en) * | 2012-05-28 | 2013-01-23 | 中铁第一勘察设计院集团有限公司 | Steel-concrete combined trussed beam |
| CN110005124A (en) * | 2019-02-25 | 2019-07-12 | 上海城建建设实业(集团)有限公司 | The construction method of assembled T plate |
| CN209799160U (en) * | 2019-02-25 | 2019-12-17 | 上海城建建设实业(集团)有限公司 | split integrated type double-T plate structure for concrete member |
| CN212317492U (en) * | 2020-01-14 | 2021-01-08 | 福建建工集团有限责任公司 | Vertical pre-buried threading pipe structure in roof beam of conveniently taking over |
| CN111139958A (en) * | 2020-02-24 | 2020-05-12 | 吴美君 | Building floor heat preservation and sound insulation system and construction method thereof |
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| CN113503040B (en) | 2023-09-29 |
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