CN112482795A - Supporting structure of prefabricated concrete structure and construction method - Google Patents
Supporting structure of prefabricated concrete structure and construction method Download PDFInfo
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- CN112482795A CN112482795A CN202011187453.1A CN202011187453A CN112482795A CN 112482795 A CN112482795 A CN 112482795A CN 202011187453 A CN202011187453 A CN 202011187453A CN 112482795 A CN112482795 A CN 112482795A
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- prefabricated
- precast
- precast beam
- post
- column
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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
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
-
- 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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/04—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a supporting structure and a construction method of a prefabricated concrete structure, wherein the prefabricated concrete structure comprises a vertical prefabricated column, a transverse prefabricated beam and a prefabricated beam column node for connecting the prefabricated beam and the prefabricated column, the supporting structure comprises an inclined strut and a steel template, two ends of the inclined strut are respectively installed on the prefabricated column and the prefabricated beam column node, and the steel template is installed at the connecting part of the prefabricated beam and the prefabricated beam column node. The simple template shear type support of the precast beam is realized through the steel template, the template which is originally required to be erected at the post-cast section between the precast beam and the precast beam column node is utilized, two functions of post-cast section construction and structural support are realized, and the synchronous construction of precast beam hoisting and precast beam supporting structures can be realized, so that the construction efficiency is improved; in addition, after the construction is finished, the steel templates and the inclined struts can be recovered and used for the construction of the same size or standard layer, so that resources are saved.
Description
Technical Field
The invention relates to the field of building construction, in particular to a supporting structure of a prefabricated concrete structure and a construction method.
Background
Prefabricated assembled Concrete structure (be PC structure, English full name Precast Concrete) has been widely used in the building field, and prefabricated component support system still generally continues to use the traditional template framed bent system of full cast-in-place structure as an important process in the prefabricated assembled structure work progress, and this system has construction cycle longer, to the great phenomenon of resource consumption simultaneously, can't embody prefabricated assembled structure promotion efficiency of construction, resources are saved, then improve the purpose and the advantage of work progress economic effect.
Therefore, in the face of different prefabricated concrete structure systems, a corresponding supporting structure with simple structure, high construction efficiency and safety is needed to perfect the prefabricated concrete construction system and better fit the characteristics of the prefabricated concrete structure system.
Disclosure of Invention
The invention provides a supporting structure of a prefabricated concrete structure and a construction method, which aim to solve the technical problem.
In order to solve the technical problem, the invention provides a supporting structure of a prefabricated concrete structure, wherein the prefabricated concrete structure comprises a vertical prefabricated column, a horizontal prefabricated beam and a prefabricated beam column node for connecting the prefabricated beam and the prefabricated column, the supporting structure comprises an inclined strut and a steel template, two ends of the inclined strut are respectively installed on the prefabricated column and the prefabricated beam column node, and the steel template is installed at the joint of the prefabricated beam and the prefabricated beam column node.
Preferably, the steel formwork comprises a U-shaped steel plate and a plurality of first connectors, the U-shaped steel plate is sleeved at a joint of the precast beam and the precast beam column node in a manner that an opening of the U-shaped steel plate faces upward, one part of the first connectors are fixedly connected with the precast beam from two side walls of the U-shaped steel plate, and the other part of the first connectors are fixedly connected with the precast beam column node from two side walls of the U-shaped steel plate.
Preferably, the connection part of the precast beam and the precast beam column node is provided with a post-cast section, and the U-shaped steel plate is coated on the outer side of the post-cast section.
Preferably, the thickness of the U-shaped steel plate is 5 mm.
Preferably, two ends of the inclined strut are fixedly connected with the precast column and the precast beam column node through a second connector respectively.
Preferably, the inclined strut is made of I-shaped steel.
The invention also provides a construction method of the support structure, which comprises the following steps:
step 1: preprocessing the inclined strut and the steel formwork according to a design drawing;
step 2: before the prefabricated column is hoisted, the prefabricated beam column nodes are preassembled on the prefabricated column, one end of the inclined strut is fixed on the prefabricated column, and the prefabricated column is hoisted, grouted and fixed;
and step 3: before the prefabricated beam column node is hoisted, installing the steel template on the prefabricated beam column node, and hoisting the prefabricated beam column node;
and 4, step 4: after the precast beam column node is hoisted, grouted and fixed, fixedly connecting the other end of the inclined strut with the precast beam column node;
and 5: hoisting the precast beam, and fixedly connecting the steel template with the precast beam;
step 6: and pouring a post-pouring section at the joint of the precast beam and the precast beam column node, and dismantling the steel form and/or the inclined strut after the post-pouring section and the strength of the floor slab meet the dismantling requirement.
Preferably, if three ends or four ends of the precast beam column nodes are required to be connected with the precast beams, the opposite precast beams are connected firstly.
Compared with the prior art, the supporting structure and the construction method of the prefabricated concrete structure provided by the invention have the following advantages:
1. according to the invention, simple template shear type support of the precast beam is realized through the steel template, and two functions of post-cast section construction and structural support are realized by utilizing the template which is originally required to be erected at the post-cast section between the precast beam and the precast beam column node, so that the structure is simple and the construction is easy;
2. in the construction process, the hoisting of the precast beam and the construction of the supporting structure can be synchronously realized, so that the construction efficiency is improved;
3. the steel form and the inclined strut are convenient to assemble and disassemble, and after construction is finished, the steel form and the inclined strut can be recycled and used for construction of the same size or standard layer, so that resources are saved.
Drawings
Fig. 1 is a schematic structural view of a support structure of a prefabricated concrete structure according to an embodiment of the present invention;
fig. 2 is a sectional view a-a in fig. 1.
In the figure: 01-precast column, 02-precast beam, 03-precast beam column node, 11-U-shaped steel plate, 12-first connector, 13-post-cast section, 21-diagonal brace and 22-second connector.
Detailed Description
In order to more thoroughly express the technical scheme of the invention, the following specific examples are listed to demonstrate the technical effect; it is emphasized that these examples are intended to illustrate the invention and are not to be construed as limiting the scope of the invention.
As shown in fig. 1 and 2, the prefabricated concrete structure comprises a vertical prefabricated column 01 and a horizontal prefabricated beam 02, and a prefabricated beam column node 03 for connecting the prefabricated beam 02 and the prefabricated column 01, wherein the prefabricated beam column node 03 comprises a vertical part for connecting with the prefabricated column 01 and a horizontal part for connecting with the prefabricated beam 02; the supporting structure comprises an inclined strut 21 and a steel template, wherein two ends of the inclined strut 21 are respectively installed on the precast column 01 and the precast beam column node 03, specifically, one end of the inclined strut 21 is connected with the precast column 01, and the other end of the inclined strut is connected with a transverse part connected with the precast beam 02; the steel formwork is installed at the joint of the precast beam 02 and the precast beam column node 03, and specifically, the steel formwork is used for connecting and bearing the transverse portions of the precast beam 02 and the precast beam column node 03. According to the invention, the precast beam 02 is supported in a shearing mode through the steel template at the post-cast section, and the bent frame support below the precast beam 02 can be omitted in the construction process of the corresponding precast concrete structure system, so that the construction efficiency is improved, the resource is saved, meanwhile, the precast concrete structure is provided with enough support by matching with the inclined strut 21, the structure is simple, and the construction is easy.
Preferably, with continuing reference to fig. 1 and fig. 2, the steel formwork includes a U-shaped steel plate 11 and a plurality of first connectors 12, specifically, the thickness of the U-shaped steel plate 11 is 5mm, the U-shaped steel plate 11 is sleeved at a connection position of the precast beam 02 and the precast beam column node 03 in an upward opening manner, wherein a portion of the first connectors 12 are respectively fixedly connected with the precast beam 02 from two side walls of the U-shaped steel plate 11, and another portion of the first connectors 12 are respectively fixedly connected with the precast beam column node 03 from two side walls of the U-shaped steel plate 11. In this embodiment, the number of the first connectors 12 is 8, four connectors are distributed on the side wall of the same side of the U-shaped steel plate 11, two of the four first connectors 12 located on the same side are used for being connected with the precast beam-column node 03, and the other two are used for being connected with the precast beam 02, so as to achieve firm connection and provide sufficient support.
Preferably, with reference to fig. 1, a post-cast section 13 is disposed at a connection position of the precast beam 02 and the precast beam-column node 03, and the U-shaped steel plate 11 is wrapped outside the post-cast section 13. Specifically, the U-shaped steel plate 11 can realize simple formwork shear support of the precast beam 02 on one hand, and can be used as a formwork of the post-cast section 13 between the precast beam 02 and the precast beam column node 03 on the other hand, thereby realizing two functions of post-cast section 13 construction and structural support.
Preferably, with continued reference to fig. 1, the inclined strut 21 is made of i-steel, and two ends of the inclined strut 21 are fixedly connected to the precast column 01 and the transverse portion of the precast beam-column node 03 through second connectors 22, respectively, to further support the precast fabricated concrete structure.
It should be noted that, the first connector 12 and the second connector 22 may both use bolts to achieve the function of connection and fixation.
With continued reference to fig. 1 and 2, the present invention further provides a construction method of the support structure, which includes the following steps:
step 1: preprocessing the inclined strut 21 and the steel template according to a design drawing, specifically, selecting proper sizes of an I-shaped steel of the inclined strut 21, a U-shaped steel plate 11 and a connector bolt group according to the design drawing, and processing by a manufacturer;
step 2: the precast beam column node 03 is preassembled on the precast column 01 before the precast column 01 is hoisted, one end of the inclined strut 21 is fixed on the precast column 01, and the precast column 01 is hoisted, grouted and fixed, wherein in some projects, the precast beam column node 03 can be installed after the precast beam column node 03 is hoisted and fixed because the precast column 01 is in a lying state before being hoisted, if the precast column 01 cannot be installed;
and step 3: before the prefabricated beam column node 03 is hoisted, the steel template is installed on the prefabricated beam column node 03, and the prefabricated beam column node 03 is hoisted;
and 4, step 4: after the precast beam column node 03 is hoisted, grouted and fixed, fixedly connecting the other end of the inclined strut 21 with the precast beam column node 03;
and 5: hoisting the precast beam 02, and fixedly connecting the steel template with the precast beam 02, preferably, if three ends or four ends of the precast beam column node 03 need to be connected with the precast beam 02, connecting the opposite precast beams 02 to keep balance;
step 6: and pouring a post-pouring section 13 at the joint of the precast beam 02 and the precast beam column node 03, and removing the steel form and/or the inclined strut 21 after the post-pouring section 13 and the strength of the floor meet the removal requirement. The removed steel templates and the inclined struts 21 can be recycled and used for construction of the same size or standard layer, and resources are greatly saved.
In the construction method, the hoisting of the precast beam 02 and the construction of the supporting structure can be synchronously realized, so that the construction efficiency is improved.
In summary, the prefabricated concrete structure provided by the invention comprises a vertical prefabricated column 01, a horizontal prefabricated beam 02 and a prefabricated beam column node 03 for connecting the prefabricated beam 02 and the prefabricated column 01, the supporting structure comprises an inclined strut 21 and a steel formwork, two ends of the inclined strut 21 are respectively installed on the prefabricated column 01 and the prefabricated beam column node 03, and the steel formwork is installed at the connection position of the prefabricated beam 02 and the prefabricated beam column node 03. The simple template shear type support of the precast beam 02 is realized through the steel template, the template which is originally required to be erected at the post-cast section 13 between the precast beam 02 and the precast beam column node 03 is utilized, two functions of post-cast section 13 construction and structural support are realized, and the synchronous construction of precast beam 02 hoisting and precast beam 02 supporting structures can be realized, so that the construction efficiency is improved; in addition, after the construction is finished, the steel templates and the inclined struts 21 can be recovered and used for the construction of the same size or standard layer, so that resources are saved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. The utility model provides a bearing structure of prefabricated concrete structure, prefabricated concrete structure includes vertical prefabricated post and horizontal precast beam, and is used for connecting precast beam and the precast beam post node of precast post, its characterized in that, bearing structure includes bracing and steel form, the both ends of bracing are installed respectively in precast post with on the precast beam post node, the steel form is installed in the junction of precast beam and precast beam post node.
2. The precast assembled concrete structure support structure of claim 1, wherein the steel formwork comprises a U-shaped steel plate and a plurality of first connectors, the U-shaped steel plate is sleeved at the connection of the precast beam and the precast beam column node with an upward opening, wherein one part of the first connectors are fixedly connected with the precast beam from two side walls of the U-shaped steel plate, respectively, and the other part of the first connectors are fixedly connected with the precast beam column node from two side walls of the U-shaped steel plate, respectively.
3. The precast concrete structure support structure of claim 2, wherein a post-cast section is provided at the junction of the precast beam and the precast beam column node, and the U-shaped steel plate is coated on the outer side of the post-cast section.
4. The prefabricated concrete structure support structure of claim 2, wherein the U-shaped steel plate has a thickness of 5 mm.
5. The precast assembled concrete structure support structure of claim 1, wherein both ends of the diagonal brace are fixedly connected to the precast column and the precast beam-column node through second connectors, respectively.
6. The prefabricated concrete structure support structure of claim 5, wherein the diagonal brace is made of I-steel.
7. A method of constructing a support structure as claimed in any one of claims 1 to 6, comprising the steps of:
step 1: preprocessing the inclined strut and the steel formwork according to a design drawing;
step 2: before the prefabricated column is hoisted, the prefabricated beam column nodes are preassembled on the prefabricated column, one end of the inclined strut is fixed on the prefabricated column, and the prefabricated column is hoisted, grouted and fixed;
and step 3: before the prefabricated beam column node is hoisted, installing the steel template on the prefabricated beam column node, and hoisting the prefabricated beam column node;
and 4, step 4: after the precast beam column node is hoisted, grouted and fixed, fixedly connecting the other end of the inclined strut with the precast beam column node;
and 5: hoisting the precast beam, and fixedly connecting the steel template with the precast beam;
step 6: and pouring a post-pouring section at the joint of the precast beam and the precast beam column node, and dismantling the steel form and/or the inclined strut after the post-pouring section and the strength of the floor slab meet the dismantling requirement.
8. The construction method according to claim 7, wherein if the precast girders are required to be connected to both three ends or four ends of the precast girder column node, the opposite precast girders are connected first.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011187453.1A CN112482795A (en) | 2020-10-30 | 2020-10-30 | Supporting structure of prefabricated concrete structure and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011187453.1A CN112482795A (en) | 2020-10-30 | 2020-10-30 | Supporting structure of prefabricated concrete structure and construction method |
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| CN112482795A true CN112482795A (en) | 2021-03-12 |
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| CN202011187453.1A Pending CN112482795A (en) | 2020-10-30 | 2020-10-30 | Supporting structure of prefabricated concrete structure and construction method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113445744A (en) * | 2021-08-05 | 2021-09-28 | 广东中都建筑集团有限公司 | Grouting-free sleeve assembly integral beam-column structure UHPC connection construction method |
| CN115262751A (en) * | 2022-08-31 | 2022-11-01 | 陕西建筑产业投资集团有限公司 | Construction method of low-rise fabricated concrete structure system |
| CN115419258A (en) * | 2022-09-29 | 2022-12-02 | 重庆赛迪工程咨询有限公司 | Standardized template for beam connection |
| CN115419258B (en) * | 2022-09-29 | 2024-07-02 | 重庆赛迪工程咨询有限公司 | Standardized template for beam connection |
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| CN103104039A (en) * | 2013-03-08 | 2013-05-15 | 郑州大学 | Assembled framework beam-column joint adopting cover plate connection and construction method thereof |
| CN110258791A (en) * | 2019-06-14 | 2019-09-20 | 中国建筑股份有限公司 | A kind of hingedly not damaged energy consumption precast frame bean column node and its construction method |
| CN110805129A (en) * | 2019-09-10 | 2020-02-18 | 上海大学 | Prefabricated assembled concrete structure energy dissipation node |
| CN111794558A (en) * | 2020-06-02 | 2020-10-20 | 上海建工二建集团有限公司 | Support device and construction method thereof |
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2020
- 2020-10-30 CN CN202011187453.1A patent/CN112482795A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104039A (en) * | 2013-03-08 | 2013-05-15 | 郑州大学 | Assembled framework beam-column joint adopting cover plate connection and construction method thereof |
| CN110258791A (en) * | 2019-06-14 | 2019-09-20 | 中国建筑股份有限公司 | A kind of hingedly not damaged energy consumption precast frame bean column node and its construction method |
| CN110805129A (en) * | 2019-09-10 | 2020-02-18 | 上海大学 | Prefabricated assembled concrete structure energy dissipation node |
| CN111794558A (en) * | 2020-06-02 | 2020-10-20 | 上海建工二建集团有限公司 | Support device and construction method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113445744A (en) * | 2021-08-05 | 2021-09-28 | 广东中都建筑集团有限公司 | Grouting-free sleeve assembly integral beam-column structure UHPC connection construction method |
| CN113445744B (en) * | 2021-08-05 | 2022-04-08 | 广东中都建筑集团有限公司 | Grouting-free sleeve assembly integral beam-column structure UHPC connection construction method |
| CN115262751A (en) * | 2022-08-31 | 2022-11-01 | 陕西建筑产业投资集团有限公司 | Construction method of low-rise fabricated concrete structure system |
| CN115262751B (en) * | 2022-08-31 | 2024-04-02 | 陕西建筑产业投资集团有限公司 | Construction method of low-layer assembled concrete structure system |
| CN115419258A (en) * | 2022-09-29 | 2022-12-02 | 重庆赛迪工程咨询有限公司 | Standardized template for beam connection |
| CN115419258B (en) * | 2022-09-29 | 2024-07-02 | 重庆赛迪工程咨询有限公司 | Standardized template for beam connection |
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