CN212742889U - Post-tensioning method prestress prefabricated assembly type frame structure system - Google Patents
Post-tensioning method prestress prefabricated assembly type frame structure system Download PDFInfo
- Publication number
- CN212742889U CN212742889U CN202021416524.6U CN202021416524U CN212742889U CN 212742889 U CN212742889 U CN 212742889U CN 202021416524 U CN202021416524 U CN 202021416524U CN 212742889 U CN212742889 U CN 212742889U
- Authority
- CN
- China
- Prior art keywords
- prefabricated
- post
- stressed
- reinforced concrete
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The utility model provides a prefabricated assembled frame construction system of post-tensioned prestressing force, including reinforced concrete column, the prefabricated coincide primary frame roof beam of post-tensioned prestressing force, prefabricated coincide secondary frame roof beam, prefabricated coincide secondary beam and floor, the both ends of the prefabricated coincide primary frame roof beam of post-tensioned prestressing force respectively with two reinforced concrete column fixed connection, the both ends of prefabricated coincide secondary frame roof beam respectively with two reinforced concrete column fixed connection, the both ends of prefabricated coincide secondary beam respectively with two prefabricated coincide primary frame roof beam fixed connection of post-tensioned prestressing force, floor and the prefabricated coincide primary frame roof beam of post-tensioned prestressing force, prefabricated coincide secondary frame roof beam and prefabricated coincide secondary beam fixed connection. The utility model discloses well prefabricated assembled frame construction system of post-tensioned prestressing force has that construction cost is low, and is anticorrosive, fire behavior is good, maintains advantages such as work load low.
Description
Technical Field
The utility model relates to a construction technical field especially relates to a prefabricated assembled frame construction system of post-tensioned prestressing force.
Background
For the large-span, heavy-load and large-storey warehouse, factory building and public building frame structure buildings, the traditional construction mode of high formwork cast-in-place of the reinforced concrete structure is adopted, so that the construction measures are high in cost, high in risk and long in construction period; the construction method of steel structure is not only high in construction cost, but also difficult in maintenance of fire prevention and corrosion prevention in the whole life cycle, and extra cost needs to be added.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention provides a post-tensioned pre-stressed prefabricated frame structure system with low construction cost.
For realizing the above-mentioned purpose, the utility model provides a prefabricated assembled frame construction system of post-tensioned prestressing force, including reinforced concrete column, the prefabricated coincide primary frame roof beam of post-tensioned prestressing force, prefabricated coincide secondary frame roof beam, prefabricated coincide secondary beam and floor, the both ends of the prefabricated coincide primary frame roof beam of post-tensioned prestressing force respectively with two reinforced concrete column fixed connection, the both ends of prefabricated coincide secondary frame roof beam respectively with two reinforced concrete column fixed connection, the both ends of prefabricated coincide secondary beam respectively with two prefabricated coincide primary frame roof beam fixed connection of post-tensioned prestressing force, floor and the prefabricated coincide primary frame roof beam of post-tensioned prestressing force, prefabricated coincide secondary frame roof beam and prefabricated coincide secondary beam fixed connection.
Furthermore, the post-tensioning method prestressed prefabricated superposed main frame beam comprises a post-tensioning method prestressed prefabricated main frame beam and a first reinforced concrete superposed layer positioned on the post-tensioning method prestressed prefabricated main frame beam.
Furthermore, a secondary beam placing notch is formed in the side wall of the post-tensioning method prestress prefabricated main frame beam, placing protruding heads are arranged at two ends of the prefabricated superposed secondary beam, and the placing protruding heads extend into the secondary beam placing notch.
Further, the prefabricated superposed secondary frame beam is a post-tensioned prestressed prefabricated superposed secondary frame beam; the post-tensioning method prestress prefabricated superposed secondary frame beam comprises a post-tensioning method prestress prefabricated secondary frame beam and a second reinforced concrete superposed layer.
Furthermore, the prefabricated superposed secondary frame beam is a prefabricated reinforced concrete superposed secondary frame beam.
Furthermore, the prefabricated superposed secondary beam is a post-tensioning-method pre-stressed prefabricated superposed secondary beam, and the post-tensioning-method pre-stressed prefabricated superposed secondary beam comprises a post-tensioning-method pre-stressed prefabricated secondary beam and a third reinforced concrete superposed layer.
Further, the prefabricated superposed secondary beam is a steel secondary beam.
Further, reinforced concrete post includes post main part and cap, the cross sectional area of cap is greater than the cross sectional area of post main part.
Further, the floor slab comprises a prefabricated bottom plate and a cast-in-place reinforced concrete layer.
As mentioned above, the utility model relates to a prefabricated assembled frame construction system of post-tensioning prestressing force has following beneficial effect:
the utility model discloses well post-tensioned prestressing force prefabricated assembled frame structure system adopts post-tensioned prestressing force prefabricated coincide main frame roof beam, prefabricated coincide secondary frame roof beam, and prefabricated coincide secondary beam, in the building process, need not to set up traditional high formwork, reduces the labor operation in a large number, reduces the cost by a wide margin, and the job site is safe civilized clean and tidy; compared with a steel structure frame, the steel structure frame has the advantages of low construction cost, good corrosion resistance and fire resistance, low maintenance workload and the like.
Drawings
Fig. 1 is a schematic view of a post-tensioned pre-stressed prefabricated frame structure system according to an embodiment of the present invention.
Fig. 2 is the embodiment of the utility model provides an in the reinforced concrete column the cross-sectional view.
Fig. 3 is the embodiment of the utility model provides an in the embodiment when post-tensioned prestressing prefabricated coincide main frame roof beam adopts whole prefabricated post-tensioned prestressing prefabricated main frame roof beam schematic diagram.
Fig. 4 is the embodiment of the utility model provides an in the embodiment when post-tensioned prestressing prefabricated coincide main frame roof beam adopts the prefabricated post-tensioned prestressing prefabricated main frame roof beam of dual-pin.
Fig. 5 is a schematic structural view of the prefabricated superimposed secondary frame beam in the embodiment of the present invention.
Fig. 6 is the embodiment of the present invention, which is a schematic view of the connection structure between the prefabricated superposed secondary beam and the post-tensioned prestressed prefabricated superposed primary frame beam.
Fig. 7 is a schematic structural diagram of a prefabricated composite secondary beam adopting a steel secondary beam in another embodiment of the present invention.
Fig. 8 is the embodiment of the utility model provides an in the embodiment connection structure sketch of prefabricated coincide secondary beam and floor.
Description of the element reference numerals
1 reinforced concrete column
11 column body
12 column cap
2 post-tensioning method prestress prefabricated superposed main frame beam
21 post-tensioning method prestress prefabricated main frame beam
211 minor beam laying notch
22 first reinforced concrete laminated layer
3 prefabricated superimposed secondary frame beam
31 post-tensioning method prestress prefabricated secondary frame beam
32 second reinforced concrete laminated layer
4 prefabricated superimposed secondary beam
41 post-tensioning method prestress prefabricated secondary beam
42 third reinforced concrete laminated layer
43 resting pick head
44 steel secondary beam
5 floor slab
51 prefabricated bottom plate
52 cast-in-situ reinforced concrete layer
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the structures, ratios, sizes, etc. shown in the drawings of the present application are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, change of the ratio relationship or adjustment of the sizes should still fall within the scope covered by the technical contents disclosed in the present invention without affecting the function and the achievable purpose of the present invention. Meanwhile, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are only for convenience of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the modifications can be changed or adjusted without substantial technical changes and modifications.
As shown in fig. 1 to 8, the utility model provides a prefabricated assembled frame construction system of post-tensioned prestressing force, including reinforced concrete column 1, the prefabricated coincide primary frame roof beam of post-tensioned prestressing force 2, prefabricated coincide secondary frame roof beam 3, prefabricated coincide secondary beam 4, and floor 5, the both ends of the prefabricated coincide primary frame roof beam 2 of post-tensioned prestressing force respectively with two reinforced concrete columns 1 fixed connection, the both ends of prefabricated coincide secondary frame roof beam 3 respectively with two reinforced concrete columns 1 fixed connection, the both ends of prefabricated coincide secondary beam 4 respectively with two prefabricated coincide primary frame roof beams 2 fixed connection of post-tensioned prestressing force, floor 5 and the prefabricated coincide primary frame roof beam 2 of post-tensioned prestressing force, prefabricated coincide secondary frame roof beam 3, and prefabricated coincide secondary beam 4 fixed connection. The utility model discloses well post-tensioned prestressing force prefabricated assembled frame construction system adopts post-tensioned prestressing force prefabricated coincide main frame roof beam 2, prefabricated coincide secondary frame roof beam 3, and prefabricated coincide secondary beam 4, in the building process, need not to set up traditional high formwork, reduces the labor operation in a large number, reduces the cost by a wide margin, and the job site is safe civilized clean and tidy; compared with a steel structure frame, the steel structure frame has the advantages of low construction cost, good corrosion resistance and fire resistance, low maintenance workload and the like.
As shown in fig. 3 and 4, the post-tensioned pre-stressed laminated main frame girder 2 in the present embodiment includes a post-tensioned pre-stressed prefabricated main frame girder 21 and a first reinforced concrete laminated layer 22 on the post-tensioned pre-stressed prefabricated main frame girder 21. The post-tensioning method prestressed prefabricated laminated main frame beam 2 can be tensioned in two batches or once according to the actual conditions of projects, the first batch of prestressed tensioning is carried out before the prefabricated beam is hoisted, and in order to meet the design requirement of beam bottom-free temporary support in the laminated layer concrete pouring stage, the second batch of tensioning is carried out after the concrete of the first reinforced concrete laminated layer 22 reaches the strength of the design requirement, and in order to meet the design requirement of the use stage. Meanwhile, in the embodiment, the side wall of the post-tensioned prestressed prefabricated main frame beam 21 is provided with a secondary beam placing gap 211, as shown in fig. 6, two ends of the prefabricated superposed secondary beam 4 are both provided with placing heads 43, and the placing heads 43 extend into the secondary beam placing gap 211.
The prefabricated superposed secondary frame beam 3 can select a post-tensioning method prestress technology according to the actual condition of a project, and can also adopt a reinforced concrete superposed secondary frame beam. In the embodiment, the prefabricated superposed secondary frame beam 3 is a post-tensioning prestressed prefabricated superposed secondary frame beam; as shown in fig. 5, the post-tensioned pre-stressed laminated sub-frame girder includes a post-tensioned pre-stressed pre-laminated sub-frame girder 31 and a second reinforced concrete laminated layer 32. And in another embodiment the prefabricated superposed secondary frame beam 3 can also be a prefabricated reinforced concrete superposed secondary frame beam.
The prefabricated superposed secondary beam 4 can select a post-tensioning prestressing technology or adopt a steel secondary beam according to the actual situation of the project. As shown in fig. 6 and 8, the prefabricated composite secondary beam 4 in this embodiment is a post-tensioned pre-stressed prefabricated composite secondary beam, which includes a post-tensioned pre-stressed prefabricated secondary beam 41 and a third reinforced concrete composite layer 42. As shown in fig. 7, while in another embodiment the prefabricated laminated secondary beam 4 comprises a steel secondary beam 44.
As shown in fig. 1, the reinforced concrete column 1 in the present embodiment includes a column main body 11 and a column cap 12, and a sectional area of the column cap 12 is larger than a sectional area of the column main body 11. The reinforced concrete column 1 is a cast-in-place reinforced concrete column. The upper extension of the cap 12 is shaped and dimensioned to meet the load bearing requirements of the main frame beam and the upper load. And in this embodiment, the construction of the reinforced concrete column 1 adopts the steel mould and the column reinforcement cage to be hoisted together and then integrally cast, and the main reinforcement and the node extending reinforcement of the column reinforcement cage are connected by the grouting sleeve.
The two ends of the post-tensioning method prestressed prefabricated main frame beam 21 extend into the column caps 12 for a certain length, and the post-tensioning method prestressed prefabricated main frame beam 21 can be prefabricated in a whole or in a double-spliced manner according to the actual conditions of projects. Both ends of the post-tensioned pre-stressed secondary frame beam 31 extend into the column cap 12 for a certain length.
As shown in fig. 8, the floor 5 in this embodiment includes any prefabricated bottom plate 51 that can meet the requirement of the formwork-free and support-free construction, and a cast-in-place reinforced concrete layer 52 on the prefabricated bottom plate 51. In this embodiment, the floor 5 is a formwork-free and support-free integral casting floor. The thicknesses of the first, second, and third reinforced concrete laminated layers 22, 32, and 42 are the same as the thickness of the floor slab 5. The prefabricated base plate 51 may be a steel truss floor deck, for example. Both ends of the prefabricated base plate 51 rest on the top surfaces of the post-tensioned pre-stressed prefabricated sub-frame girders 31 or the post-tensioned pre-stressed prefabricated sub-girders 41 for a certain length.
The post-tensioned prestressing prefabricated frame structure system in the embodiment is a multilayer frame structure system, so that the material consumption is saved, and high formwork erection required by traditional cast-in-place construction is avoided, the construction period and the number of labor workers are greatly reduced, and the comprehensive construction cost of a project is effectively reduced. In addition, large-area single prefabricated sites, pretensioning tensioning pedestals and reaction foundations are needed for prefabricating the assembled frame structure by adopting a field pretensioning method, one-time investment is large, the reaction foundations cannot be reused, and the prefabricated assembled frame structure needs to be dismantled after a project is finished, so that cost and resource waste is caused. And this embodiment adopts post-tensioned prestressing force assembled frame construction system, and the prefabricated field can divide several places to arrange in a flexible way according to the project condition, need not stretch-draw pedestal and counter-force basis, and the prestressing force stranded wire can adopt various lineages such as curve, straight line according to the structure atress characteristics, and the atress is reasonable, and the roof beam does not have the invert problem. And the application of the integral steel die cast-in-place construction of the column, the post-tensioning method prestress technology and the post-tensioning method prestress assembly type frame structure system of the support-free floor avoids high formwork construction, and has the advantages of good quality, short construction period, low manufacturing cost, low consumption, great reduction of labor and the like.
The utility model provides a prefabricated assembled frame construction system of post-tensioned prestressing force compares with cast-in-place prestressing force frame construction has following advantage:
1. the construction process of the assembled structure without temporary support is adopted, the traditional high formwork does not need to be erected, labor operation is greatly reduced, the manufacturing cost is greatly reduced, and the construction site is safe, civilized and tidy;
2. this reinforced concrete column 1 construction adopts the big steel mould of design and steel reinforcement cage to hoist the back together and wholly waters, and post steel reinforcement cage owner muscle and node stretch out the muscle and adopt grout muffjoint, have both accelerated the construction progress and can save the labour to reduce the cost of manufacture.
The utility model provides a prefabricated assembled frame construction system of post-tensioned prestressing force compares with steel structural framework has following advantage:
1. low construction cost, good corrosion resistance and fire resistance, and no maintenance for life.
The utility model provides a prefabricated assembled frame construction system of post-tensioning prestressing force compares with the prefabricated assembled frame of pre-tensioning prestressing force has following advantage:
1. the prestressed tension pedestal and the counter-force foundation do not need to be built on the construction site, and the investment of a prefabricated site can be greatly reduced.
2. The pre-tensioning method system column adopts a construction process of reserving inverted inserted steel bars of a corrugated pipe and then grouting, and because column steel bars are connected in an anchoring mode, two or more layers of frame columns cannot be structurally realized; the post-tensioning assembled system column ribs of the utility model are connected by grouting sleeves and can be applied to single-layer or multi-layer frame structures;
3. the pre-tensioning process requires a long and narrow prefabricated site and a wide prefabricated site, and beam prefabrication needs to be arranged end to end, so that the limitation on site conditions is large; the utility model adopts a post-tensioning system, the site can be flexibly arranged in several places when the beam is prefabricated, and the applicability to the site is stronger;
4. the pre-tensioning method precast beam can only adopt linear line-shaped reinforcing steel bars, the prestressed reinforcing steel bars are once released and tensioned in the precast stage, the unreasonable line shape and the once released and tensioned make the inverted arch of the precast beam too large, which affects the construction of the floor slab 5 and easily causes the cracking of the floor slab 5 in the later period; the utility model discloses precast beam prestressed reinforcement can adopt various linear arrangements such as curve, straight line according to the structure atress characteristics, can adopt two stages stretch-draw technology as required, and the atress is reasonable, has fine solved the too big problem of roof beam invert.
To sum up, the utility model discloses various shortcomings in the prior art have effectively been overcome and high industry value has.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. A post-tensioning method prestress prefabricated assembled frame structure system is characterized by comprising a reinforced concrete column (1), a post-tensioning method prestress prefabricated superposed main frame beam (2), a prefabricated superposed secondary frame beam (3), a prefabricated superposed secondary beam (4) and a floor slab (5), two ends of the post-tensioning method prestress prefabricated superposed main frame beam (2) are respectively and fixedly connected with two reinforced concrete columns (1), two ends of the prefabricated superposed secondary frame beam (3) are respectively fixedly connected with two reinforced concrete columns (1), two ends of the prefabricated superposed secondary beam (4) are respectively fixedly connected with the two post-tensioning prestressed superposed main frame beams (2), the floor slab (5) is fixedly connected with the post-tensioning method prestress prefabricated superposed main frame beam (2), the prefabricated superposed secondary frame beam (3) and the prefabricated superposed secondary beam (4).
2. Post-tensioned pre-stressed prefabricated assembled frame structure system according to claim 1, wherein said post-tensioned pre-stressed pre-laminated main frame beams (2) comprise post-tensioned pre-stressed prefabricated main frame beams (21) and a first reinforced concrete laminated layer (22) on the post-tensioned pre-stressed prefabricated main frame beams (21).
3. The post-tensioning pre-stressed prefabricated assembled frame structure system according to claim 2, wherein a secondary beam placing notch (211) is formed in the side wall of the post-tensioning pre-stressed prefabricated main frame beam (21), placing protruding heads (43) are arranged at two ends of the prefabricated superposed secondary beam (4), and the placing protruding heads (43) extend into the secondary beam placing notches (211).
4. The post-tensioned pre-stressed prefabricated assembled frame structure system according to claim 1, wherein the prefabricated laminated secondary frame beams (3) are post-tensioned pre-stressed prefabricated laminated secondary frame beams; the post-tensioning method prestress prefabricated superposed secondary frame beam comprises a post-tensioning method prestress prefabricated secondary frame beam (31) and a second reinforced concrete superposed layer (32).
5. The post-tensioned pre-stressed prefabricated assembled frame structure system according to claim 1, wherein the prefabricated laminated sub-frame beams (3) are prefabricated reinforced concrete laminated sub-frame beams.
6. Post-tensioned pre-stressed prefabricated assembled frame structure system according to claim 1, wherein said prefabricated superimposed sub-beams (4) are post-tensioned pre-stressed prefabricated superimposed sub-beams comprising a post-tensioned pre-stressed prefabricated sub-beam (41) and a third laminated layer of reinforced concrete (42).
7. Post-tensioned pre-stressed prefabricated frame structure system according to claim 1, wherein said prefabricated superimposed sub-beams (4) comprise steel sub-beams (44).
8. Post-tensioned pre-stressed prefabricated frame structure system according to claim 1, wherein said steel concrete column (1) comprises a column body (11) and a column cap (12), said column cap (12) having a cross-sectional area larger than the cross-sectional area of the column body (11).
9. The post-tensioned pre-stressed prefabricated frame structure system according to claim 1, wherein the floor slab (5) comprises a prefabricated floor slab (51) and a cast-in-place reinforced concrete layer (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021416524.6U CN212742889U (en) | 2020-07-17 | 2020-07-17 | Post-tensioning method prestress prefabricated assembly type frame structure system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021416524.6U CN212742889U (en) | 2020-07-17 | 2020-07-17 | Post-tensioning method prestress prefabricated assembly type frame structure system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212742889U true CN212742889U (en) | 2021-03-19 |
Family
ID=75037381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021416524.6U Active CN212742889U (en) | 2020-07-17 | 2020-07-17 | Post-tensioning method prestress prefabricated assembly type frame structure system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212742889U (en) |
-
2020
- 2020-07-17 CN CN202021416524.6U patent/CN212742889U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210713255U (en) | Assembled prestress superposed beam-column joint for building | |
| US8578537B2 (en) | Partially prefabricated structural concrete beam | |
| CN113216409A (en) | Connecting structure of precast concrete tubular pile column with diagonal bracing and hollow floor or flat floor | |
| CN212715656U (en) | Assembled prestressing force structure of curve cloth muscle | |
| CN117188606A (en) | Prestressed assembled concrete beam column node and construction method thereof | |
| CN212742889U (en) | Post-tensioning method prestress prefabricated assembly type frame structure system | |
| CN216587255U (en) | Steel-concrete combined rib prestressed concrete laminated slab | |
| CN216239247U (en) | Laminated floor slab with hollow mold | |
| CN215290989U (en) | Connecting structure of precast concrete tubular pile column and hollow floor or flat floor | |
| CN115198966A (en) | Construction method of prestressed prefabricated laminated frame beam | |
| CN210947410U (en) | Prestressed recycled concrete hollow composite beam | |
| CN112854603A (en) | Connecting structure of precast concrete tubular pile column and hollow floor or flat floor | |
| CN215211883U (en) | Pre-tensioned pre-stressed frame assembly structure system | |
| CN215888962U (en) | Thin-bottom groove type prestressed concrete superposed beam | |
| CN219825835U (en) | Concrete character shape combination beam structure | |
| CN214402433U (en) | Prefabricated and cast-in-place combined clad steel-concrete composite beam | |
| CN220451079U (en) | UHPC connection is pre-fabricated stress concrete frame structure system | |
| CN216948780U (en) | Connecting node of anti-bank of full prefabricated bathroom and roof beam | |
| CN220335680U (en) | Combined beam bridge | |
| CN211645912U (en) | Prefabricated prestressed concrete beam and steel-concrete composite beam splicing bridge | |
| CN218091607U (en) | Prestressed precast beam and superposed beam formed by same | |
| CN219825595U (en) | Large-span prestress prefabricated integral casting beam structure | |
| CN217517912U (en) | Plate-end shear-resistant reinforced assembled composite slab floor system | |
| CN219261339U (en) | Lattice type steel reinforced concrete precast beam column node | |
| CN218881308U (en) | Self-bearing prestressed net rib plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |