CN113503040B - Embedded lower chord herringbone frame rib plate assembly type double-T plate construction method - Google Patents
Embedded lower chord herringbone frame rib plate assembly type double-T plate construction method Download PDFInfo
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- CN113503040B CN113503040B CN202110935731.5A CN202110935731A CN113503040B CN 113503040 B CN113503040 B CN 113503040B CN 202110935731 A CN202110935731 A CN 202110935731A CN 113503040 B CN113503040 B CN 113503040B
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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
-
- 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 an embedded double T-plate construction method for rib plates of a herringbone frame of a lower chord, which comprises the following steps: (1) Simultaneously prefabricating a propeller strut, a wing plate, a lower chord member, an end rod and a stabilizer rod in parallel in a prefabricating factory; (2) Transporting the prefabricated part to an assembly site, assembling the herringbone frame and the lower chord member, and connecting two herringbone frame rib plates by adopting a stabilizer bar; (3) Spreading the wing plates on the herringbone frame, placing the upper ends of the herringbone frame into the wing plate openings, and installing tool steel strands to tension the wing plate wings; (4) A rib is arranged in the lower chord member body, and the lower chord member is tensioned by tensioning the rib; (5) Hoisting the integrated double T plates of the rib plate assembly type of the embedded lower chord herringbone frame to a required position; (6) And (5) determining whether the stabilizer bar is taken off or not according to the situation, and detaching the tool steel strand to finish the installation. The embedded type lower chord herringbone frame rib plate assembly type double-T plate construction method adopts the split prefabrication and the on-site assembly, is convenient for transportation and storage in a storage yard, saves cost, improves convenience, greatly reduces construction period, brings economic benefit, has wide application prospect, and has great pushing effect on the development of an assembly type 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 an embedded double-T plate construction method for rib plates of a lower chord herringbone frame.
Background
In recent years, the assembled structure becomes the development trend of the building industry, and the production and manufacture of prefabricated components are indispensable important contents, wherein the double-T plate integrates the beam and the plate into a whole in a unique structural form, has good structural performance, rapid construction speed and lower cost, and can be manufactured into a building roof bearing component with large span, large coverage area and economy. The double T-shaped plate comprises a wing plate and two rib plates, wherein the wing plate can be used as a direct bearing surface of external load to have the plate function, and also can be used as a flange of the T-shaped beam to integrate the beam plate. The wing plate has the characteristics of multiple functions of one material, and compared with a 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 huge overall dimension occupies large space and is limited by transportation, so that the double T plate has to be manufactured on site. The problem of on-site manufacturing of double-T plates still exists, namely the huge volume of the integral double-T plates occupies a large amount of storage sites, and the stacking requirements cannot be met, so that the double-T plates are difficult to widely use. And even when the length of the double T plate is smaller, the double T plate occupies larger cargo space, so that the transportation capacity is limited, the rise of transportation cost and the engineering progress lag are brought, and the popularization of the double T plate is not facilitated. In addition, the double T-plate on-site open-air cast-in-place production is also influenced by typhoons, heavy rain, low-temperature weather and other factors, and the progress is also influenced. Practice proves that: the traditional construction method of integrally manufacturing the double T-shaped plates is a bottleneck severely restricting the construction period, often causes the construction period to be multiplied, and reflects the advantages of an assembled structure.
In the prior art, a technology for separately prefabricating and recombining wing plates and rib plates into an integral double-T plate is available, so that the problems are solved in stages. However, engineering practical and theoretical studies indicate that: when the span of the double T plate is larger, the self weight of the double T plate is increased along with the increase of the span, and the double T plate is not linearly increased, but is non-linearly increased, and the engineering cost is also non-linearly increased. The main reasons are that the increase of the rib plate height is nonlinear, the increase of the rib plate dead weight is nonlinear, the rib plate is made into a truss form, and the problem can be solved, but the storage and transportation space required by the integral prefabrication of the truss, the complex reinforcement of the truss, the complex die system and the expensive cost are all restricted.
Accordingly, further innovative approaches are needed to solve the above problems.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an embedded double-T plate construction method for rib plates of a herringbone frame of a lower chord, which can be quickly and conveniently manufactured and transported and can improve the applicability and the universality of engineering application.
In order to achieve the above purpose, the embedded type double T-plate construction method for the rib plates of the herringbone frame of the lower chord member adopts the following technical scheme:
the double T-shaped plate comprises wing plates, a herringbone frame rib plate and an embedded lower chord member, wherein the herringbone frame rib plate is arranged above the lower chord member and connected with the lower chord member, the wing plates are flatly paved 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, and the herringbone frame rib plate is assembled by taking a single herringbone frame as a basic unit.
The 'V' -shaped frame and the 'eight' -shaped frame are the same in meaning, and are inverted to form a 'Y' -shaped frame or an inverted 'eight' -shaped frame, and the 'V' -shaped frame or the inverted 'V' -shaped frame are all commonly called as the 'V' -shaped frame in the invention, and the 'V' -shaped frame is made of concrete, steel or steel-concrete composite materials.
The herringbone frame is integrated and comprises a first limb and a second limb, the axes of the first limb and the second limb are set to be set angles, and the upper ends of the first limb and the second limb are connected into a whole.
The herringbone frames are arranged along the axis direction of the lower chord member, and the end parts of the adjacent herringbone frames are abutted against each other.
The herringbone frame, the wing plates and the lower chords form a vertical truss together, the herringbone frame is used as a web member of the truss to be integrally sheared (the first limb and the second limb are only stressed by axial force), the wing plates are used as upper chords (pressed horizontally), and the lower chords are used as lower (horizontally) tension chords. The truss form, while saving material and reducing dead weight compared to solid plates, is a complex and expensive mold required for prefabrication, and the complexity of the reinforcement within the overall truss, with respect to a fully prefabricated truss, or a double T-plate with ribs provided as trusses, such that the aforementioned advantages of the truss are partially offset. The web member of the truss is decomposed into simple basic units by adopting the herringbone rib plates, the repetition rate is high, the die cost is saved, the rib arrangement is standardized and simplified, the advantages of the solid rib plates and the truss rib plates are integrated, the defects of the web member are abandoned, and the web member is an optimized concept. Moreover, the form of the propeller strut is an overall advantage, and also a convenience in installation, and is an optimal concept, relative to the instability and complexity in installation and the difficulty in controlling the split truss web members into individual tension or compression bars.
Further, the lower end of the herringbone frame is provided with an embedded space for placing the embedded lower chord member, an anti-slip groove is formed in the inner side of the herringbone frame, which is close to the embedded space, of the lower end of the herringbone frame, and post-sizing agent is injected into the embedded space for connecting the lower chord member with the anti-slip groove.
Further, the frame body of herringbone frame lower extreme be close to embedded space department and be provided with the anticreep arris, the embedded space is interior to inject rearmounted thick liquid for link together anticreep arris and bottom chord, prevent that bottom chord from breaking away from with the herringbone frame.
The lower chord member is embedded, the embedded lower chord member is arranged inside the lower end of the herringbone frame, namely, the lower chord member body is arranged inside the herringbone frame body.
Further, the lower chord member is arranged as a hollow pipe body. The pipe body material is 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 stretch the lower chord member, the rib body is made of steel, carbon fiber or high-strength engineering material, and the steel rib body is made of steel bars and prestress ribs (steel strands, steel wires or prestress screw bars and the like).
The wing plate is internally provided with holes, and the upper end of the herringbone frame is arranged in the holes of the wing plate. The wing plate material is concrete, steel or steel concrete composite material.
Further, the wing plates are arranged in a sectional mode, each section of wing plate is arranged as a wing plate, holes are formed in the wing plates, and the upper ends of the herringbone frames are arranged in the holes of the wing plates.
Further, the joint of the lower chord member and the herringbone frame is provided with an anti-slip protrusion for preventing the sliding of the lower end of the herringbone frame and the lower chord member, the anti-slip protrusion is in a strip shape, a block shape or a dot shape, and the material is concrete, steel concrete composite material, plastic or wood. The anti-slip protrusion and the lower chord are arranged as a whole or are assembled or connected in a split way.
Further, the herringbone frame is provided with an anti-slip groove at the joint of the herringbone frame and the lower chord member, and an anti-slip protrusion of the rear slurry coating the lower chord member is arranged in the anti-slip groove.
Further, a wedging body is arranged between the upper end of the propeller strut and the inner opening of the wing plate.
The end part of the embedded type double T-shaped plate with the rib plates of the lower chord propeller strut is provided with an end rod connecting wing plate and a lower chord member to bear the pressure of a support, the end rod is vertically arranged, and the propeller strut, the lower chord member and the end rod are arranged in a vertical plane.
Furthermore, when the embedded lower chord herringbone frame rib plate assembled double-T plate is assembled on site, a temporary horizontal stabilizer bar can be additionally arranged between the herringbone frame rib plates and used for fixing the two assembled herringbone frame rib plates. The stabilizer bar is rod-shaped and made of steel, concrete and steel concrete composite materials.
Further, when the double T plates assembled by the herringbone frame rib plates are assembled on site, temporary tool steel strands parallel to the wing plates are additionally arranged on the upper portions of the wing plates, the wing plates of the segmented wing plates are used for tensioning, and the integrity and stability of the double T plates in the hoisting process are ensured.
The embedded type double T-shaped plate of the rib plate of the bottom chord propeller strut is constructed by adopting the following construction method:
the first step: simultaneously prefabricating a propeller strut, a wing plate, a lower chord member, an end rod and a stabilizer rod in parallel in a prefabricating factory;
and a second step of: transporting the prefabricated part to an assembly site, firstly assembling a herringbone frame with a lower chord member, and connecting two herringbone frame rib plates by adopting a stabilizer bar;
and a third step of: spreading the wing plates on the herringbone frame, placing the upper ends of the herringbone frame into the openings of the wing plates, and installing the tool steel strand tensioning wing plates;
fourth step: the rib body is placed in the lower chord member body, and the rib body is tensioned so as to tension the lower chord member;
fifth step: hoisting the assembled double T plates of the rib plates of the assembled integrated embedded lower chord herringbone frame to a required position;
sixth step: and (5) 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 plate, the embedded double-T plate with the rib plates of the lower chord propeller strut has the following advantages:
1. the herringbone frame fully exerts the advantage of truss stress, reduces the dead weight of the herringbone frame rib plates, reduces the materials with lower efficiency in the solid rib plates, improves the utilization rate of the materials, and enlarges the span of the double T plates in an efficient mode.
2. The rib plate of the herringbone frame takes a single herringbone frame as a basic unit, so that the prefabrication repetition rate is greatly improved, and the advantages and the strength of prefabrication assembly are exerted. After the solid rib plates are arranged into truss rib plates, the steel mould used in concrete prefabrication is more complex and the cost is increased sharply, and after the herringbone rib plates are adopted, the steel mould used in prefabrication becomes extremely simple and the cost is obviously reduced, compared with the double T plate of the whole solid rib plates, the cost of the steel mould is reduced from tens of millions of yuan and millions of yuan to thousands of yuan and hundreds of yuan, the disadvantage that the cost of the prefabricated steel mould is large in proportion is completely improved, and the prefabricated steel mould is beneficial to application and popularization; compared with the rib plates of the integral truss, the rib plate of the herringbone frame has standardized and simplified rib arrangement mode, greatly improves construction convenience and reduces labor cost.
3. The cost of the steel mould of the wing plate prefabricated by sections is obviously reduced as that of the propeller strut.
4. The storage and transportation cost of the embedded lower chord herringbone frame rib plate double-T plate is greatly reduced, and the convenience is remarkably improved.
5. In the field of double T plate assembly, as each segment has reached strength in advance, only partial rainproof measures (such as that workers wear umbrellas or wear rain capes) are needed, the double T plate assembly can be still carried out in severe environments such as rainy days, low temperature and the like, and the construction speed is increased.
In a word, the embedded type lower chord herringbone frame rib plate double-T plate can save cost, shorten construction period (the construction period is the cost in many times), improve efficiency, improve construction convenience, and enable the double-T plate to have wider application prospect, so that the double-T plate is more suitable for being an optimal choice of an assembled building.
Drawings
Fig. 1 is a side elevation view of the propeller strut of the present invention.
Fig. 2 is a side elevation view of the assembled position of the propeller strut of the present invention.
Fig. 3 is a longitudinal section of the propeller strut of the present invention after assembly with a wing panel and a lower chord.
Fig. 4 is a cross-sectional view of the propeller strut of the present invention after assembly with a wing panel and a lower chord.
FIG. 5 is a cross-sectional view of the embedded bottom chord and the propeller strut of the present invention in positional relationship.
FIG. 6 is a longitudinal cross-sectional view of the embedded bottom chord and the propeller strut of the present invention in position.
FIG. 7 is a horizontal cross-sectional view of the positional relationship of the embedded bottom chord and the propeller strut of the present invention.
FIG. 8 is a horizontal cross-sectional view of the positional relationship of the installed condition stabilizer bar and the tool steel strand of the present invention.
Reference numerals:
1. herringbone frame
11. First limb part
12. Second limb
13. Anticreep arris
14. Embedded space
141. Anti-slip groove
2. Wing plate
3. Embedded lower chord
31. Rib body
32. Anti-slip boss
4. End rod
5. Post-slurry
6. Tool steel strand
7. Stabilizer bar
Detailed Description
In order to make the technical contents of the present invention more clearly understood, the following examples are specifically described.
Referring to fig. 1 to 8, the double T-plate of the rib plate of the embedded lower chord propeller strut includes propeller strut 1, wing plate 2, embedded lower chord 3 and end rod 4. The rib plate of the lambdoidal frame 1 is arranged above the embedded lower chord member 3 and is connected with the embedded lower chord member 3, the wing plate 2 is flatly paved above the rib plate of the lambdoidal frame 1 and is connected with the rib plate of the lambdoidal frame 1, the end rod 4 is connected with the wing plate 2 and the embedded lower chord member 3, and the lambdoidal frame 1, the embedded lower chord member 3 and the end rod 4 are arranged in a vertical plane. The rib plate of the lambdoidal frame 1 comprises a plurality of prefabricated lambdoidal frames 1, and the rib plate is assembled by taking a single lambdoidal frame 1 as a basic unit. The herringbone frame 1 is an integral body and comprises a first limb 11 and a second limb 12, the axes of the first limb 11 and the second limb 12 are set to be set angles, and the upper ends of the first limb 11 and the second limb 12 are connected into an integral body. The utility model provides a herringbone frame 1 lower extreme be provided with anticreep arris 13 and embedded space 14, the support body that herringbone frame 1 lower extreme is close to embedded space 14 be provided with anti-skidding recess 141, embedded lower chord member 3's cavity body in be provided with muscle body 31, embedded lower chord member 3 be provided with non-slip raised 32 in the embedded space 14 department of herringbone frame 1, embedded space 14 and embedded lower chord member 3 between be provided with post slurry 5. When the double T-shaped 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 is 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 herringbone frame 1 and used for fixing two assembled herringbone frame rib plates.
Example 1
The first step: simultaneously prefabricating a herringbone frame, wing plates, embedded lower chords and end bars in parallel;
and a second step of: transporting the prefabricated parts to an assembly site, fixing two mutually parallel lower chords at set positions, buckling a herringbone frame on the lower chords from above, grouting in an embedded space of the herringbone frame to fix the herringbone frame and the lower chords, forming two parallel herringbone frame rib plates, and connecting the two herringbone frame rib plates by adopting a stabilizer bar;
and a third step of: spreading the wing plates on the herringbone frame, and placing the upper ends of the herringbone frame into the openings of the wing plates;
fourth step: placing a rib body into the embedded lower chord member body, and stretching the rib body so as to tension the embedded lower chord member;
fifth step: and hoisting the assembled and integrated embedded double T-shaped plates of the rib plates of the herringbone frame of the lower chord member to a required position.
The embedded type double T-shaped plate construction method for the rib plates of the bottom chord propeller strut provided by the invention adopts the steps of prefabricating in sections and assembling in site, is convenient for transportation and storage in a storage yard, saves cost, improves convenience, greatly reduces construction period, brings economic benefit, has wide application prospect, and has great pushing effect on the development of an assembled building.
In this specification, the invention has been described with reference to specific embodiments thereof. It will be apparent, however, that various modifications and changes may be made without departing from the spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (3)
1. The double T plate construction method for the rib plate assembly type of the embedded lower chord member lambdoidal frame is characterized in that the double T plate assembly type of the rib plate assembly type of the embedded lower chord member lambdoidal frame comprises wing plates, lambdoidal frame rib plates and embedded lower chord members, wherein the lambdoidal frame rib plates are arranged above the lower chord members and connected with the lower chord members, the wing plates are tiled above the lambdoidal frame rib plates and connected with the lambdoidal frame rib plates, the lambdoidal frame rib plates comprise at least two prefabricated lambdoidal frames, the single lambdoidal frame is used as a basic unit for assembly, and the embedded lower chord members are arranged in the lambdoidal frame body;
the herringbone frame is integrated, the material is concrete, the herringbone frame rib plates are integrally prefabricated and comprise a first branch and a second branch, the axes of the first branch and the second branch are set to be at preset angles, the upper ends of the first branch and the second branch are connected into a whole, the herringbone frames are arranged along the axis direction of the lower chord, and the end parts of the adjacent herringbone frames are abutted against the end parts; the herringbone frame, the wing plates and the lower chords form a vertical truss, the herringbone frame is used as a web member of the truss to be integrally sheared, the first branch limb and the second branch limb are only subjected to axial force, the wing plates are used as upper chords to be horizontally pressed, and the lower chords are used as lower parts to be horizontally pulled; compared with an integrally prefabricated truss or a double-T plate with rib plates arranged as the truss, the truss saves materials and reduces dead weight compared with a solid plate, but the die required by prefabrication is complex and expensive, and the complexity of rib arrangement in the integral truss partially counteracts the advantages of the truss, and the adoption of the herringbone frame rib plates decomposes the web members of the truss into simple basic units, improves the repetition rate, saves the die cost, standardizes and simplifies the rib arrangement, integrates the advantages of the solid rib plates and the truss rib plates, and abandons the respective defects; compared with the way of disassembling truss web members into single tension or compression rods, the truss web members have the advantages of instability, complexity and inconvenience in control during installation, and the form of a herringbone frame, namely, the truss web members have the advantages of integration and convenience during installation;
the lower end of the herringbone frame is provided with an embedded space for placing the embedded lower chord member, a frame body, close to the embedded space, of the lower end of the herringbone frame is provided with an anti-slip groove, and post-sizing agent is injected into the embedded space and used for connecting the lower chord member with the anti-slip groove;
the joint part of the lower chord member and the herringbone frame is provided with an anti-slip bulge which is used for preventing the lower end of the herringbone frame from sliding with the lower chord member; the lower chord member is arranged as a hollow pipe body, ribs are additionally arranged in the pipe body, and the ribs are used for applying prestress to stretch the lower chord member; the inside of the wing plate is provided with a hole, and the upper end of the propeller strut is arranged in the hole of the wing plate; the wing plates are arranged in a sectional mode, each section of wing plate is provided with a wing plate, a hole is formed in each wing plate, and the upper end of the propeller strut is arranged in the hole of each wing plate;
when the embedded lower chord propeller strut rib plate assembled double-T plate is assembled on site, the lower end of the propeller strut is assembled with the embedded lower chord from the upper part, and the rear slurry is formed by grouting in the gap between the tail end of the propeller strut and the embedded space of the embedded lower chord, so that the propeller strut and the lower chord are fixed, and assembled into the assembled propeller strut rib plate; a temporary horizontal stabilizer bar is additionally arranged between the herringbone frame rib plates and used for fixing two assembled herringbone frame rib plates; the temporary tool steel strands parallel to the wing plates are additionally arranged at the upper parts of the wing plates and are used for tensioning the wing plates of the segmented wing plates and ensuring the integrity and stability of the double T-shaped plates in the hoisting process;
the construction method comprises the following steps:
the first step: simultaneously prefabricating the propeller strut, the wing plates, the lower chord and the end rod in parallel in a prefabricating factory;
and a second step of: transporting the prefabricated parts to an assembly site, firstly assembling the herringbone frame with the lower chord member, and connecting two herringbone frame rib plates by adopting a stabilizer bar;
and a third step of: spreading the wing plates on the herringbone frame, placing the upper ends of the herringbone frame into the holes of the wing plates, and installing tool steel strands to tension the wing plates of the wing plates;
fourth step: placing a rib into the lower chord member body, and tensioning the rib so as to tension the lower chord member;
fifth step: hoisting the assembled double T plates of the rib plates of the assembled integrated embedded lower chord herringbone frame to a required position;
sixth step: and (5) 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 double-T-shaped plate assembled by the rib plates of the embedded type lower chord propeller strut according to claim 1, wherein the strut body at the lower end of the propeller strut is provided with an anti-falling edge near the embedded space, and the embedded space is filled with post-sizing agent for connecting the anti-falling edge with the lower chord member together so as to prevent the lower chord member from vertically separating from the propeller strut up and down.
3. The method for constructing the double-T-shaped plate of the rib plate assembly of the embedded type lower chord member and the rib plate assembly of the herringbone frame according to claim 1 or 2, wherein the end part of the double-T-shaped plate of the herringbone frame and the rib plate assembly of the herringbone frame is provided with an end rod for connecting the wing plate and the lower chord member to bear the pressure of a support, the end rod is vertically arranged, and the herringbone frame, the lower chord member and the end rod are arranged in a vertical plane.
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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 true CN113503040B (en) | 2023-09-29 |
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| 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 |
Family Cites Families (1)
| 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 |
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2021
- 2021-08-16 CN CN202110935731.5A patent/CN113503040B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN113503040A (en) | 2021-10-15 |
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