CN114150861B - Template back frame and construction method thereof - Google Patents
Template back frame and construction method thereof Download PDFInfo
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- CN114150861B CN114150861B CN202111373187.6A CN202111373187A CN114150861B CN 114150861 B CN114150861 B CN 114150861B CN 202111373187 A CN202111373187 A CN 202111373187A CN 114150861 B CN114150861 B CN 114150861B
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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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
-
- 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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/001—Corner fastening or connecting means for forming or stiffening elements
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
- E04G17/042—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements being tensioned by threaded elements
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention provides a template back frame and a construction method thereof, and the template back frame is quickly erected and formed by adopting the spliced template back frame after a wall body is poured and steel bars are bound. The novel prestress tool type template back frame is a T-shaped back frame which is formed by connecting customized size section steels in a sleeved mode through bolts, a round steel inclined strut is arranged at the end portion of the T-shaped back frame, and prestress is applied to the end portion of the round steel inclined strut after the round steel inclined strut is screwed up through fastening bolts. After the T-shaped back frame is screwed down by the round steel diagonal bracing and is prestressed, the plane side of the T-shaped back frame forms a slight protrusion to form an arch, so that the bearing capacity of the T-shaped back frame perpendicular to the arch surface is greatly improved. The prestressed tool type wall formwork back frame is simple and convenient to operate, easy to install and disassemble and adjustable in size, and a splicing type formwork and corresponding node fixing measures are matched, so that a novel cast-in-place concrete wall formwork bent frame construction system which is convenient to construct and does not damage the structure is formed.
Description
Technical Field
The invention relates to a template back frame and a construction method thereof.
Background
In a traditional building structure construction system, when a concrete cast-in-place wall body is constructed, vertical templates on two sides of the concrete cast-in-place wall body need to be connected by adopting split bolts, and are supported by adopting transverse and longitudinal steel pipes, and meanwhile, the concrete cast-in-place wall body needs to be kept stable by adopting steel pipe inclined struts. Generally, the construction process is relatively complex, and the erection and the removal of the template bent frames and the screws are required to consume more manpower and working hours during the construction of a large-area cast-in-place wall body; meanwhile, holes left in the tension bolts after construction have certain influence on the structure, and subsequent repair also needs a large amount of materials and labor.
Disclosure of Invention
The invention aims to provide a template back frame and a construction method thereof.
In order to solve the above problems, the present invention provides a template back frame, comprising:
set up in the T type back of the body frame of keeping away from treating concreting wall side of template, T type back of the body frame includes: longitudinal steel section and transverse steel section assembly, wherein the transverse steel section assembly comprises: the device comprises transverse section steel and a sleeving part, wherein the sleeving part is arranged at one end of the transverse section steel, and the sleeving part of the transverse section steel is sleeved in the middle of the longitudinal section steel so as to connect the transverse section steel and the longitudinal section steel into a T shape;
2 round steel bracing, the one end of every round steel bracing with the one end of vertical shaped steel is connected, the other end of every round steel bracing with the other end of horizontal shaped steel passes through fastening bolt and connects.
Further, in above-mentioned template back of the body frame, round steel bracing tip sets up the screw thread, fastening bolt with the screw thread cooperation tightens up the round steel bracing.
Further, in the above template back frame, the template is a DUO splicing template.
Furthermore, in the template back frame, the sleeving part and the middle part of the longitudinal section steel are fixedly connected through a first bolt.
Further, in the above-mentioned template back of the body frame, be provided with a plurality of bolt holes respectively according to predetermineeing interval distance on vertical shaped steel, horizontal shaped steel and the portion of cup jointing.
Further, in the above-mentioned template back frame, the first bolt passes through the bolt hole of the longitudinal section steel and the bolt hole on the sleeve joint part and is fixed.
Further, in above-mentioned template back of the body frame, still include the second bolt, wherein, one of every round steel bracing is served and is provided with the second bolt hole, the second bolt passes the bolt hole of the one end of vertical shaped steel and the second bolt hole that one of round steel bracing was served and is fixed.
Furthermore, in the template back frame, 2 round steel inclined struts form a V shape.
Further, in the above-mentioned template back frame, still include:
i-steel horizontal steel beams fixed at two ends of the longitudinal section steel;
the prefabricated embedded parts are respectively arranged on the structure, wherein one I-steel horizontal steel beam is abutted against one prefabricated embedded part.
According to another aspect of the present invention, there is provided a construction method of a formwork back frame, characterized in that the formwork back frame according to any one of the above is used, the method including:
determining the building positions of a template and a T-shaped back frame according to the position of a concrete wall to be poured in a drawing, and arranging a prefabricated embedded part on the structure in advance;
calculating the size of the T-shaped back frame according to the size of the concrete wall to be poured and the pouring height of the concrete, and adjusting the T-shaped back frame to the corresponding size;
binding reinforcing steel bars on a wall body on site, and then erecting a DUO splicing type template;
installing a T-shaped back frame on the side, far away from the concrete wall to be poured, of the DUO splicing type template, and arranging I-shaped steel horizontal steel beams at the positions, corresponding to the prefabricated embedded parts, of the longitudinal section steel;
calculating the prestress of the T-shaped back frame according to the concrete pouring load, and tightening the end fastening bolts of the 2 round steel inclined struts according to the required prestress;
and after the concrete pouring construction of the wall body is completed and the wall body is maintained and reaches a certain strength, sequentially loosening the fastening bolts at the end parts of the round steel inclined struts to release prestress, dismantling the I-shaped steel horizontal steel beam on the longitudinal section steel, dismantling the T-shaped back frame and dismantling the DUO splicing type template.
Compared with the prior art, after the wall body is required to be poured and the steel bars are bound, the spliced template back frame is adopted for rapid erection molding. The novel prestress tool type template back frame is a T-shaped back frame which is formed by connecting customized size section steels in a sleeved mode through bolts, a round steel inclined strut is arranged at the end portion of the T-shaped back frame, and prestress is applied to the end portion of the round steel inclined strut after the round steel inclined strut is screwed up through fastening bolts. After the T-shaped back frame is screwed down by the round steel diagonal brace and is prestressed, as shown in fig. 3, the plane side of the T-shaped back frame forms a slight protrusion to form an arch, so that the bearing capacity of the T-shaped back frame perpendicular to the arch surface is greatly improved. The prestressed tool type wall formwork back frame is simple and convenient to operate, easy to install and disassemble and adjustable in size, and is matched with the splicing type formwork and corresponding node fixing measures, so that a novel cast-in-place concrete wall formwork bent frame construction system which is convenient to construct and does not damage the structure is formed.
The invention can conveniently install and dismantle the template bent, and simultaneously has enough strength support to lead the template to be free from using the split bolt for connection, thereby saving the labor and material cost and avoiding the adverse effect of the template bent on the structure.
According to the invention, the round steel diagonal brace is arranged on the T-shaped back frame, the end part of the round steel diagonal brace is provided with the thread, the round steel diagonal brace is tightened by the fastening bolt, the horizontal section of the back frame can be pushed to provide prestress for the vertical back frame section with a supporting effect through the further fastening bolt, and the vertical supporting template section of the back frame slightly arches after being subjected to the prestress, so that the bearing capacity of the back frame is greatly increased.
Drawings
FIG. 1 is a schematic view of the installation of a template back frame according to an embodiment of the invention;
FIG. 2 is a block diagram of a template back frame according to one embodiment of the invention;
FIG. 3 is a schematic view of a prestressed template back frame according to one embodiment of the present invention;
fig. 4 is a schematic view of an i-section horizontal steel beam against a prefabricated insert according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 4, the present invention provides a template back frame, comprising:
set up in keeping away from T type back of the body frame 2 of waiting to pour concrete wall side of template 1, T type back of the body frame includes: a longitudinal steel section 21 and a transverse steel section assembly, wherein the transverse steel section assembly includes: the horizontal section steel 23 and the sleeve joint part 22, wherein one end of the horizontal section steel 23 is provided with the sleeve joint part 22, and the sleeve joint part 22 of the horizontal section steel 23 is sleeved on the middle part 24 of the longitudinal section steel 21, so that the horizontal section steel 23 and the longitudinal section steel 21 are connected into a T shape;
2 round steel bracing 3, the one end of every round steel bracing 3 with the one end of vertical shaped steel 21 is connected, the other end of every round steel bracing 3 with the other end of horizontal shaped steel 23 passes through fastening bolt 4 and connects.
After the wall needs to be poured and the steel bars need to be bound, the spliced template back frame is adopted for fast erection and forming. The novel prestress tool type template back frame is a T-shaped back frame which is formed by sleeving section steels with customized sizes and then connecting the section steels through bolts, a round steel inclined strut is arranged at the end part of the T-shaped back frame, and prestress is applied to the end part of the round steel inclined strut after the round steel inclined strut is screwed up through a fastening bolt. After the T-shaped back frame is screwed down by the round steel diagonal brace and is prestressed, as shown in fig. 3, the plane side of the T-shaped back frame forms a slight protrusion to form an arch, so that the bearing capacity of the T-shaped back frame perpendicular to the arch surface is greatly improved. The prestressed tool type wall formwork back frame is simple and convenient to operate, easy to install and disassemble and adjustable in size, and a splicing type formwork and corresponding node fixing measures are matched, so that a novel cast-in-place concrete wall formwork bent frame construction system which is convenient to construct and does not damage the structure is formed.
The invention can conveniently install and dismantle the template bent, and simultaneously has enough strength support to lead the template to be free from using the split bolt for connection, thereby saving the labor and material cost and avoiding the adverse effect of the template bent on the structure.
According to the invention, the round steel diagonal brace is arranged on the T-shaped back frame, the end part of the round steel diagonal brace is provided with the thread, the round steel diagonal brace is tightened by the fastening bolt, the horizontal section of the back frame can be pushed to provide prestress for the vertical back frame section with a supporting effect through the further fastening bolt, and the vertical supporting template section of the back frame slightly arches after being subjected to the prestress, so that the bearing capacity of the back frame is greatly increased.
The load is different when pouring for the wall body of different height, thickness of pouring, can make T type back of the body frame prestressing force accord with the bearing capacity demand through adjusting the fastening bolt of round steel bracing tip.
In an embodiment of the template back frame of the present invention, the template is a DUO splicing template.
The invention can adopt a DUO template which can be quickly spliced, a T-shaped back frame component which is sleeved by section steel and then connected by bolts and a prefabricated embedded part for fixing the back frame, so that the whole cast-in-place wall template bent frame system can be quickly formed during construction.
In an embodiment of the template back frame of the present invention, as shown in fig. 2, the middle parts of the sleeve part 22 and the longitudinal steel 21 are fixed by a first bolt 5.
The novel prestress back frame is formed by sleeving customized section steel with bolt holes to form a T shape, and the longitudinal section steel and the transverse section steel are sleeved and slidably adjusted; after the size of the longitudinal section steel and the size of the transverse section steel assembly are adjusted according to actual requirements, the longitudinal section steel and the transverse section steel assembly are fixedly connected through a first bolt.
As shown in fig. 2, in an embodiment of the template back frame of the present invention, the longitudinal section steel, the transverse section steel and the sleeving part are respectively provided with a plurality of bolt holes 6 at predetermined intervals.
A plurality of bolt holes are reserved in the T-shaped back frame steel, and the sleeving size can be set according to actual requirements during sleeving, so that the T-shaped back frame steel can adapt to wall construction of different sizes.
In one embodiment of the template back frame of the present invention, as shown in fig. 2, the first bolt 5 passes through the bolt hole 6 of the longitudinal steel section 21 and the bolt hole 6 of the sleeve part 22 and is fixed, wherein the bolt hole 6 of the longitudinal steel section 21 is in sleeve alignment with the bolt hole 6 of the sleeve part 22.
In an embodiment of the template back frame, the template back frame further comprises a second bolt 7, wherein one end of each round steel inclined strut 3 is provided with a second bolt hole, the second bolt 7 penetrates through the bolt hole 6 at one end of the longitudinal steel section 21 and the second bolt hole at one end of each round steel inclined strut and is fixed, and the bolt hole at one end of the longitudinal steel section is aligned with the second bolt hole at one end of each round steel inclined strut.
In one embodiment of the template back frame of the present invention, 2 round steel struts are formed in a V-shape, as shown in fig. 2 and 3.
In an embodiment of the template back frame of the present invention as shown in fig. 1 and 4, the template back frame further comprises:
the I-shaped steel horizontal steel beams 8 are fixed at two ends of the longitudinal section steel 21;
the prefabricated embedded parts 9 are respectively arranged on the structure 10, wherein one I-steel horizontal steel beam 8 is abutted against one prefabricated embedded part 9.
After the prestressed T-shaped back frame is arranged on two sides of the cast-in-place wall body formwork, the upper end and the lower end of the prestressed T-shaped back frame are fixed through the embedded parts and the I-shaped steel horizontal steel beams, so that the formwork back frame clamps the formwork from two sides.
The novel prestress tool type template back frame is a T-shaped whole body which is formed by connecting customized size section steels through bolts after being sleeved, the end part of the T-shaped whole body is provided with an inclined strut for providing prestress, and the upper end and the lower end of the back frame support the template are fixed through a prefabricated embedded part and an I-shaped steel horizontal steel beam and then are clamped and spliced to complete the cast-in-place concrete wall template bent frame system.
The invention also provides another construction method of the template back frame, which adopts the template back frame of any embodiment, and comprises the following steps:
step S1, determining building positions of a template and a T-shaped back frame according to the position of a concrete wall to be cast in a drawing and arranging a prefabricated embedded part on the structure in advance;
s2, calculating the size of the T-shaped back frame according to the size of the concrete wall to be poured and the pouring height of the concrete, and adjusting the T-shaped back frame to the corresponding size;
s3, binding reinforcing steel bars on a wall body site, and then erecting a DUO splicing type template;
s4, mounting a T-shaped back frame on the side, far away from the concrete wall to be poured, of the DUO splicing type template, and arranging I-shaped steel horizontal steel beams at the positions, corresponding to the prefabricated embedded parts, of the longitudinal section steel;
step S5, calculating the prestress of the T-shaped back frame according to the concrete pouring load, and tightening the end fastening bolts of the 2 round steel inclined struts according to the required prestress;
and S6, finishing concrete pouring construction of the wall body, maintaining and reaching a certain strength, loosening fastening bolts at the end parts of the round steel inclined struts to release prestress, dismantling I-shaped steel horizontal steel beams on the longitudinal section steel, dismantling the T-shaped back frame and dismantling the DUO splicing type template in sequence.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
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 (7)
1. A template back frame, comprising:
set up in the T type back of the body frame of keeping away from treating concreting wall side of template, T type back of the body frame includes: longitudinal steel section and transverse steel section assembly, wherein the transverse steel section assembly comprises: the device comprises transverse section steel and a sleeving part, wherein the sleeving part is arranged at one end of the transverse section steel, and the sleeving part of the transverse section steel is sleeved in the middle of the longitudinal section steel so as to connect the transverse section steel and the longitudinal section steel into a T shape;
2 round steel inclined struts, wherein one end of each round steel inclined strut is connected with one end of the longitudinal section steel, and the other end of each round steel inclined strut is connected with the other end of the transverse section steel through a fastening bolt; the end part of the round steel inclined strut is provided with a thread, and the fastening bolt is matched with the thread to tighten the round steel inclined strut; 2 round steel inclined struts form a V shape;
the I-shaped steel horizontal steel beams are fixed at two ends of the longitudinal section steel;
the prefabricated embedded parts are respectively arranged on the structure, wherein one I-steel horizontal steel beam is abutted against one prefabricated embedded part.
2. The template back frame of claim 1, wherein said template is a DUO splice template.
3. The template back frame of claim 1, wherein the socket part and the middle part of the longitudinal section steel are fixed by a first bolt connection.
4. The template back frame according to claim 3, wherein the longitudinal section, the transverse section and the socket part are respectively provided with a plurality of bolt holes at predetermined intervals.
5. The template back frame of claim 4, wherein the first bolt passes through the longitudinal steel bolt hole and the bolt hole on the socket part and is fixed.
6. The template back frame of claim 4, further comprising a second bolt, wherein a second bolt hole is provided at one end of each round bar diagonal brace, and the second bolt passes through and is fixed to the bolt hole at one end of the longitudinal section steel and the second bolt hole at one end of the round bar diagonal brace.
7. A construction method of a formwork back frame is characterized in that the formwork back frame as claimed in any one of claims 2 to 6 is adopted, and the method comprises the following steps:
determining the erection positions of a template and a T-shaped back frame according to the position of a concrete wall to be cast in a drawing and arranging a prefabricated embedded part on the structure in advance;
calculating the size of the T-shaped back frame according to the size of the concrete wall to be poured and the pouring height of the concrete, and adjusting the T-shaped back frame to the corresponding size;
binding reinforcing steel bars on the wall on site, and then erecting a DUO splicing type template;
installing a T-shaped back frame on the side, far away from the concrete wall to be poured, of the DUO splicing type template, and arranging I-shaped steel horizontal steel beams at the positions, corresponding to the prefabricated embedded parts, of the longitudinal section steel respectively;
calculating the prestress of the T-shaped back frame according to the concrete pouring load, and tightening the end fastening bolts of 2 round steel inclined struts according to the required prestress;
and after the concrete pouring construction of the wall body is completed and the wall body is maintained and reaches a certain strength, sequentially loosening the fastening bolts at the end parts of the round steel inclined struts to release prestress, dismantling the I-shaped steel horizontal steel beam on the longitudinal section steel, dismantling the T-shaped back frame and dismantling the DUO splicing type template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111373187.6A CN114150861B (en) | 2021-11-19 | 2021-11-19 | Template back frame and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111373187.6A CN114150861B (en) | 2021-11-19 | 2021-11-19 | Template back frame and construction method thereof |
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| CN114150861A CN114150861A (en) | 2022-03-08 |
| CN114150861B true CN114150861B (en) | 2023-02-17 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1004565B (en) * | 1987-07-01 | 1989-06-21 | 广西水电工程局第二工程处 | Multifunctional concrete combined mould frame |
| JP3151635B2 (en) * | 1992-05-28 | 2001-04-03 | 大成建設株式会社 | Construction method of reverse Langer arch bridge |
| CN102909778A (en) * | 2012-11-06 | 2013-02-06 | 天津二十冶建设有限公司 | Mountainous bridge body template |
| CN203603482U (en) * | 2013-09-30 | 2014-05-21 | 中建三局建设工程股份有限公司 | Stair formwork supporting system |
| CN206521942U (en) * | 2017-03-09 | 2017-09-26 | 王萍 | Concrete wall cast component |
| KR101906778B1 (en) * | 2018-06-29 | 2018-10-10 | 배상훈 | Formwork supporting apparatus |
| CN211818028U (en) * | 2020-01-07 | 2020-10-30 | 河南祥中科技有限公司 | Pulling-on piece formula aluminum mould board supports reinforcing apparatus |
| CN112709430A (en) * | 2020-12-25 | 2021-04-27 | 中国十九冶集团有限公司 | Template device based on BIM |
| CN113279565A (en) * | 2021-06-11 | 2021-08-20 | 中国建筑一局(集团)有限公司 | Tool type supporting structure for reinforcing ultra-thick inner wall and construction method |
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