CN216406148U - Single-side formwork for reverse-construction ultrahigh reinforced concrete wall - Google Patents
Single-side formwork for reverse-construction ultrahigh reinforced concrete wall Download PDFInfo
- Publication number
- CN216406148U CN216406148U CN202120599409.5U CN202120599409U CN216406148U CN 216406148 U CN216406148 U CN 216406148U CN 202120599409 U CN202120599409 U CN 202120599409U CN 216406148 U CN216406148 U CN 216406148U
- Authority
- CN
- China
- Prior art keywords
- reinforced concrete
- formwork
- standard block
- construction
- triangular support
- 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
- 238000009415 formwork Methods 0.000 title claims abstract description 38
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 36
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 239000004568 cement Substances 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims abstract description 3
- 239000004567 concrete Substances 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000007569 slipcasting Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The utility model belongs to the technical field of concrete walls, and particularly relates to a single-side formwork of a reverse-construction ultrahigh reinforced concrete wall, which comprises a triangular bracket, standard block steel formworks, a grouting anchor rod with a screw head, a reinforced concrete beam supported on the outer side of the triangular bracket, wherein a plurality of standard block steel formworks are arranged on the vertical right-angle edge of the triangular bracket and used for blocking cement; the bottom of the triangular support is supported on the outer side supporting reinforced concrete cross beam through foundation bolts; a screw head grouting anchor rod is arranged at the right-angle joint of the standard block steel template and the triangular bracket; and a bottom support reinforced concrete beam is arranged at the lower end of the right-angle joint of the standard block steel template and the triangular bracket. The utility model solves the problems of difficult single-side installation, poor stability and high danger of the template in the construction of the ultra-high wall, and is suitable for the construction of the ultra-high reinforced concrete wall with an ultra-large and ultra-wide space and difficult single-side formwork support.
Description
Technical Field
The utility model belongs to the technical field of concrete walls, and particularly relates to a single-side formwork of a reverse-construction ultrahigh reinforced concrete wall.
Background
With the continuous improvement of the building construction technical level in China, the building structure is gradually complicated, the reinforced concrete wall single-side formwork construction method is widely applied to various projects, particularly underground projects, the reinforced concrete wall single-side formwork is usually constructed by a full-hall bracket frame, a triangular bracket large formwork and the like, but the method is not suitable for certain specific projects due to the limitation, for example, when the full-hall bracket frame single-side formwork construction method is adopted, the method is not particularly economical and has poor stability when the construction method meets the conditions of overlarge size and ultra-wide space; when the triangular support large formwork is adopted for construction, the triangular support can not be utilized in an ultrahigh wall surface according to the stress structure characteristics of the triangular support, and the top of the triangular support is easy to have a formwork running phenomenon. Therefore, in order to guarantee the structural stability and the safety, promote the construction quality to be improved and solve the problems of difficult single-side installation, poor stability and high risk of the template in the construction of the ultra-high wall, a construction method for reversely constructing the ultra-high reinforced concrete wall by adopting a single-side formwork is developed.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a single-side formwork for a reverse-construction ultrahigh reinforced concrete wall, which can be used for conveniently realizing the operation of the ultrahigh reinforced concrete wall.
The specific technical scheme is as follows: a single-side formwork for a reverse-construction ultrahigh reinforced concrete wall comprises a triangular support, standard block steel templates and a grouting anchor rod with a screw head, wherein a reinforced concrete cross beam is supported at the outer side, and a plurality of standard block steel templates are arranged on the vertical right-angle edge of the triangular support; the bottom of the triangular support is supported on the outer side supporting reinforced concrete cross beam through foundation bolts;
a grouting anchor rod with a screw head is arranged at the right-angle joint of the standard block steel template and the triangular bracket;
the lower end of the right-angle joint of the standard block steel template and the triangular support is provided with a bottom support reinforced concrete beam, and the bottom end of the triangular support is connected with the bottom support reinforced concrete beam through foundation bolts. The bottom support reinforced concrete beam is arranged at the position, close to the wall body, of the bottom of the triangular support, so that the phenomenon that the top of the triangular support is easy to run when cement pressure is received can be prevented.
Furthermore, the vertical right-angle side of the triangular support is provided with a plurality of anchor rods, and the anchor rods penetrate through the standard block steel template to be connected with an external wall body. The anchor rods are used for connecting the template with the wall (original wall), so that the phenomenon that the top of the triangular support is easy to run when the triangular support receives the pressure of cement is further prevented.
Further, the top of the standard module steel template is provided with a top bevel steel template, and the top of the top bevel steel template is opened at an angle of 45 degrees and can be assembled.
Has the advantages that: the construction is carried out by adopting a method of excavating a working surface layer by layer from top to bottom, erecting a formwork layer by layer on one side and pouring a wall body in blocks by adopting a triangular support large formwork reverse construction ultrahigh reinforced concrete wall (namely under the condition that the existing shielding structure exists at the top). After the excavation is to the layering elevation, wait to construct the wall bottom and pour the pre-buried anchor rod formula rag bolt of interim crossbeam and ensure that the bottom atress of A-frame is firm (anchor rod formula rag bolt adopts the slip casting to consolidate), for concrete placement when convenient reverse construction, the steel form can be assembled of template adoption customization open-top 45 jiaos, and the bevel connection template facade at top must be ensured and whole template owner stupefied channel-section steel on same perpendicular, makes the A-frame atress even. The single-side formwork of the ultrahigh reinforced concrete wall is excavated from top to bottom in layers and constructed, so that the problems that the wall surface is ultrahigh and cannot be formed at one time, an effective supporting system cannot be formed on an empty surface, a support is easy to destabilize, the appearance quality cannot be guaranteed and the like can be effectively solved; compared with the outstanding problems that the construction of the sequential construction method needs a large amount of supporting materials on the free face, the support is unstable in stress, difficult to pour and the like, the reverse construction method ensures the quality and the safety, saves a large amount of turnover materials, and is energy-saving and environment-friendly. The method is suitable for the construction of the ultra-high reinforced concrete wall with an ultra-large and ultra-wide space and difficult single-side formwork erecting.
Drawings
FIG. 1 is a schematic view of the present invention;
wherein, 1, a steel template with a top bevel opening is adopted; 2. shielding a structure; 3. a wall body; 4. standard block steel templates; 5. grouting the anchor rod with a screw head; 6. the bottom supports a reinforced concrete beam; 7. the outer side supports a reinforced concrete beam; 8. a triangular bracket; 9 anchor rods.
Detailed Description
As shown in fig. 1, the single-side formwork for the reverse-construction ultrahigh reinforced concrete wall comprises a triangular bracket 8, standard block steel formworks 4, a grouting anchor rod 5 with a screw head, a reinforced concrete beam 7 supported on the outer side, and a plurality of standard block steel formworks 4 arranged on the vertical right-angle edge of the triangular bracket 8 and used for blocking concrete; the outer side edge end part of the bottom end of the triangular support 8 is provided with an outer side supporting reinforced concrete beam 7, and the bottom of the triangular support 8 is supported on the outer side supporting reinforced concrete beam 7 through foundation bolts;
a grouting anchor rod 5 with a screw head is arranged at the right-angle joint of the standard block steel template 4 and the triangular bracket 8;
the lower end of the right-angle joint of the standard block steel template 4 and the triangular support 8 is provided with a bottom support reinforced concrete beam 6, and the bottom end of the triangular support 8 is connected with the bottom support reinforced concrete beam 6 through foundation bolts. The bottom support reinforced concrete beam 6 is arranged at the position, close to the wall body, of the bottom of the triangular support 8, and the phenomenon that the triangular support 8 generates the top under the pressure of received cement and runs out of a mold can be prevented.
Further, the vertical right-angle side of the triangular support is provided with a plurality of anchor rods 9, and the anchor rods penetrate through the standard block steel template to be connected with an external wall body. The anchor rods are used for connecting the template with the wall (original wall), so that the phenomenon that the top of the triangular support is easy to run when the triangular support receives the pressure of cement is further prevented.
Further, 4 tops of standard module steel form are provided with top bevel connection steel form 2, and top bevel connection steel form 2 open-top 45 jiaos can assemble.
The construction method comprises the following steps:
(1) under the existing circumstances that shelters from structure 2 exists at the top, after excavation working face to first layer elevation, bore and get the pre-buried slip casting stock 5 the latter half of punchhole, then take the slip casting to consolidate, ensure that rag bolt pulling force satisfies the requirement. (2) And the bottom of the casting triangular support supports a reinforced concrete beam 6 and the outer side of the position of the outer side adjusting bolt supports a reinforced concrete beam 7. (3) The side steel templates are customized according to the height of the ultrahigh wall body in a layering mode, the steel templates are divided into standard block steel templates 4 and top inclined opening templates 1, the opening angle ensures that concrete pouring and vibration are convenient, and then assembling is carried out according to the layering height. (4) After the side wall templates are assembled, the channel steel main beam and the railing are installed, and the installation position of the channel steel must be ensured to be on the same vertical plane with the outer vertical surface of the top bevel connection template (in the prior art). 5. Assembling the triangular support 8, and connecting the foundation bolts at the bottom of the side close to the wall to the pre-buried grouting anchor rods by adopting sleeves with screw threads. (6) Concrete is poured and vibrated from the top oblique opening, and the lower layer is constructed according to the same method of the upper layer after the upper layer wall body 3 is constructed until all the reverse operations are finished. The wall surface made in the mode is higher, and a single triangular bracket is difficult to form at one time; therefore, the upper wall space is dug, the formwork is removed after the concrete wall is poured on the formwork, then downward excavation is continued, the formwork is supported and then pouring is carried out, and the ultrahigh concrete wall is inversely manufactured by pouring one layer of the formwork downward.
The utility model is successfully applied to the Kunming city track traffic No. 4 line Guangdong-Wei parking lot, completes the ultrahigh pile plate wall 143m and the ultrahigh soil nail wall 357m of the excavation support of the high slope cutting, has safe and efficient operation, stable and reliable quality and good appearance, saves a large amount of turnover materials, and has certain popularization and application values.
Claims (3)
1. A single-side formwork of a reverse-construction ultrahigh reinforced concrete wall comprises a triangular support, standard block steel templates and a grouting anchor rod with a screw head, wherein a reinforced concrete beam is supported at the outer side of the single-side formwork, and a plurality of standard block steel templates are arranged on the vertical right-angle edge of the triangular support and used for blocking cement; the bottom of the triangular support is supported on the outer side supporting reinforced concrete cross beam through foundation bolts;
a screw head grouting anchor rod is arranged at the right-angle joint of the standard block steel template and the triangular bracket;
the steel formwork and triangular support combined type steel formwork and steel formwork combined type steel formwork and triangular support combined type steel formwork combined type triangular support.
2. The single-sided formwork of claim 1, wherein the vertical right-angle side of the triangular frame is provided with a plurality of anchor rods, and the anchor rods pass through standard module steel templates to be connected with the external wall.
3. The single-sided formwork of claim 1, wherein the standard block steel formwork is provided with a top bevel steel formwork at the top end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120599409.5U CN216406148U (en) | 2021-03-24 | 2021-03-24 | Single-side formwork for reverse-construction ultrahigh reinforced concrete wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120599409.5U CN216406148U (en) | 2021-03-24 | 2021-03-24 | Single-side formwork for reverse-construction ultrahigh reinforced concrete wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216406148U true CN216406148U (en) | 2022-04-29 |
Family
ID=81281515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120599409.5U Active CN216406148U (en) | 2021-03-24 | 2021-03-24 | Single-side formwork for reverse-construction ultrahigh reinforced concrete wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216406148U (en) |
-
2021
- 2021-03-24 CN CN202120599409.5U patent/CN216406148U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107313431B (en) | Close on not contour foundation pit method for synchronously constructing | |
| CN109356173A (en) | A kind of pin-connected panel anchor bolt frame girder construction and its construction method | |
| CN103437348B (en) | Construction device and method of pile peripheral cemented soil cast-in-place stiffness core pile | |
| CN111519665A (en) | Gapless filling method for foundation post-cast strip | |
| CN110130363A (en) | Assembled is implanted into foundation pit enclosure stake and pile wall interaction structure and its construction method | |
| CN104988948B (en) | A kind of construction method of fin-plate type retaining wall | |
| CN102011410A (en) | Prefabricated prestressed underground continuous wall and construction method thereof | |
| CN1563612A (en) | Construction method for underground structure through half reverse course of action of inverting connection | |
| CN203462463U (en) | Construction device of pile-peripheral cemented-soil cast-in-situ stiffening core pile | |
| CN104074197B (en) | The construction method of large diameter thin wall cylinder stake compound anchor rod-type foundation pit enclosure structure | |
| CN109989407B (en) | Roadbed pile tube curtain supporting structure behind newly-added two-line platform of railway | |
| CN108222656B (en) | The construction method of Prefabricated enclosure wall | |
| CN210658340U (en) | Prefabricated dado | |
| CN212249179U (en) | Basement outer wall single face formwork support system | |
| CN216406148U (en) | Single-side formwork for reverse-construction ultrahigh reinforced concrete wall | |
| CN210117716U (en) | Trapezoidal foundation ditch lateral wall concrete typical forms of elevartor shaft | |
| CN215484618U (en) | A pour template structure for assembled shear force wall and post | |
| CN209620049U (en) | A kind of pin-connected panel anchor bolt frame girder construction | |
| CN208650067U (en) | Underground increasing layer excavates new supporting structure | |
| CN212001282U (en) | Underground structure outer wall vertical post-cast strip enclosed construction in restricted foundation ditch | |
| CN103866787A (en) | Process for constructing impervious concrete wall by using open excavation and inverted construction method | |
| CN209958372U (en) | Railway newly-added second-line platform back way foundation pile pipe curtain supporting structure | |
| CN113756352A (en) | Soft soil foundation brick moulding bed construction structure and construction method thereof | |
| CN114108694A (en) | Micro-disturbance anti-floating underground cylindrical structure and construction method thereof | |
| CN205804405U (en) | A kind of frame bridge structure of hysterology construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240322 Address after: 650000, 23rd floor, Building C3, International Ginza, Shuntong Avenue, Economic and Technological Development Zone, Kunming City, Yunnan Province Patentee after: SHANGHAI CIVIL ENGINEERING GROUP SIXTH CO.,LTD. Country or region after: China Address before: No. 272-278, JIANGCHANG Third Road, Jing'an District, Shanghai Patentee before: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC Country or region before: China Patentee before: SHANGHAI CIVIL ENGINEERING GROUP SIXTH CO.,LTD. |