CN112709256A - Underground chamber roof post-cast strip non-roof-return structure and construction method - Google Patents
Underground chamber roof post-cast strip non-roof-return structure and construction method Download PDFInfo
- Publication number
- CN112709256A CN112709256A CN202011550378.0A CN202011550378A CN112709256A CN 112709256 A CN112709256 A CN 112709256A CN 202011550378 A CN202011550378 A CN 202011550378A CN 112709256 A CN112709256 A CN 112709256A
- Authority
- CN
- China
- Prior art keywords
- post
- cast strip
- roof
- basement
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000009415 formwork Methods 0.000 claims description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims 1
- 210000003205 muscle Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009435 building construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
A structure hidden beam is arranged on each of basement roofs on two sides of the post-cast strip, an upper corner rib of a frame beam perpendicular to the post-cast strip penetrates through the structure hidden beam, and the structure hidden beam and the basement roof are integrally cast with concrete. The structural measure of the post-cast strip non-return construction site eliminates the requirement of post-cast strip steel pipe return in the production and construction processes, greatly reduces the construction cost, creates conditions for basement passage and advanced construction, and has good popularization and application prospects.
Description
Technical Field
The invention relates to the field of building construction, and particularly belongs to a basement roof construction site post-cast strip non-return structure and a construction method.
Background
Along with the scale of the existing building construction projects gradually increasing, the ultra-long and ultra-large integral storehouses are more and more, how to effectively reduce the cracking caused by uneven settlement of the structure, and the application of the post-pouring strip technology well solves the problem, however, according to the standard requirements, the settled post-pouring strip needs to be closed 60 days after the main body is closed, the closed post-pouring strip needs to be closed 60 days after concrete structures on two sides are poured, long-time exposure results in that the structural beams and the plates on two sides of the post-pouring strip form cantilever members, in order to prevent the structural damage of the cantilever members caused by self stress, the construction site usually uses a steel pipe teaching hand frame for back-jacking, the erection, dismantling and material lease of a post-pouring strip back-jacking steel pipe frame which is thousands of meters in a large project are undoubtedly great process cost, the application of the technology avoids the back-pouring strip back-jacking measures through a little investment of cast-in-place members, undoubtedly, the engineering cost is greatly saved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a construction method for preventing the post-cast strip of the roof of the underground chamber from being jacked back.
In order to solve the technical problem, the technical scheme provided by the invention is a non-return structure of a post-cast strip of a top plate of an underground chamber, which is characterized in that a structure hidden beam is respectively arranged on the top plate of the underground chamber at two sides of the post-cast strip, an upper corner rib of a frame beam perpendicular to the post-cast strip is arranged in the structure hidden beam in a penetrating manner, and the structure hidden beam and the top plate of the underground chamber are integrally cast with concrete.
The structure hidden beam exceeds the surface of the basement roof by 5-10 cm.
The non-return structure of post-cast strip on construction site as claimed in claim 2, wherein the width of the dark beam of the structure is 250 cm.
The construction method of the post-cast strip non-return structure on the construction site comprises the following steps:
1) completing the support and binding of the structural formworks at two sides of the post-cast strip, and extending the reinforcing steel bars at the upper corners of the frame beams perpendicular to the two sides of the post-cast strip to penetrate through the frame beams; 2) binding upturning structure hidden beams at two sides of the post-cast strip, and enabling the angle steel bars at the upper part of the frame beam vertical to the post-cast strip to penetrate through the structure hidden beams, wherein the height of the structure hidden beams exceeds the surface of the top plate of the underground chamber by about 5-10 cm; 3) carrying out formwork hanging construction on the hidden beam of the upturning part structure and pouring concrete along with the top plate of the basement; 4) and (4) removing the template and the support frame after the strength of the concrete reaches the design mark, wherein the post-cast strip cannot be subjected to centralized stacking in the span.
The angle steel bars on the upper part of the frame beam penetrate through the structural hidden beam, the frame beam steel bars are fully utilized as stress supports, and the frame beam and the upturned structural hidden beam form a stress whole; the integral stress form of the overhanging ends at two sides of the post-cast strip is changed by arranging the upturning structure hidden beam, so that the self stress balance is achieved, and the downward radius of a member borne by the self is offset; pouring the concrete and the structural concrete simultaneously to ensure the stability of integral stress; the post-cast strip is originally internally cross-wise reduced in stacking load so as to reduce the disturbance of the external environment to the structure, and the effect of avoiding roof return is fully achieved.
According to the construction method for preventing the post-cast strip from being jacked back on the construction site, the stress form of the cantilever members on the two sides of the post-cast strip can be changed by arranging the upturned beam, the purpose of preventing the post-cast strip from being jacked back is achieved, and the construction cost of the post-cast strip for being jacked back is greatly reduced.
Drawings
Fig. 1 is a schematic top view of a basement roof.
Fig. 2, 1-1 in fig. 1 is a schematic sectional structure.
Fig. 3, 2-2 sectional structural view in fig. 1.
Detailed Description
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings.
Referring to the attached drawings 1 to 3, a post-cast strip non-return structure and a construction method for a construction site comprise the following construction steps:
firstly, completing formwork support and reinforcement binding of basement top plates 2 on two sides of a post-cast strip 6, and extending and penetrating upper corner reinforcements 3 of frame beams 1 vertical to two sides of the post-cast strip 6; then binding 250 cm wide upturned structure hidden beams 4 on two sides of the post-cast strip 6, enabling the reinforcing steel bars 3 at the upper corners of the frame beams 1 vertical to the two sides of the post-cast strip 6 to penetrate through the upturned structure hidden beams 4, and enabling the height of the structure hidden beams 4 to exceed the surface of the basement roof 2 by about 5-10 cm; then, carrying out mould hanging construction on the structural hidden beam 4 of the upturning part and pouring concrete along with the basement top plate 2; and finally, removing the template and the support frame after the strength of the concrete reaches the design mark, and preventing the post-cast strip 6 from being stacked in a centralized manner.
The angle steel bars on the upper part of the frame beam penetrate through the structural hidden beam, the frame beam steel bars are fully utilized as stress supports, and the frame beam and the upturned structural hidden beam form a stress whole; the integral stress form of the overhanging ends at two sides of the post-cast strip is changed by arranging the upturning structure hidden beam, so that the self stress balance is achieved, and the downward radius of a member borne by the self is offset; pouring the concrete and the structural concrete simultaneously to ensure the stability of integral stress; the post-cast strip is originally internally cross-wise reduced in stacking load so as to reduce the disturbance of the external environment to the structure, and the effect of avoiding roof return is fully achieved.
The structural measure of the post-cast strip non-return construction site eliminates the requirement of post-cast strip steel pipe return in the production and construction processes, greatly reduces the construction cost, creates conditions for basement passage and advanced construction, and has good popularization and application prospects.
Claims (4)
1. The utility model provides a basement roof post-cast strip exempts from structure of returning top which characterized in that sets up a structure hidden beam on the basement roof of post-cast strip both sides respectively, and the frame roof upper portion angle muscle of perpendicular to post-cast strip is worn to establish in the structure hidden beam, the concrete placement is carried out with basement roof integration to structure hidden beam.
2. The basement roof post-cast strip non-return structure according to claim 1, wherein the structure hidden beam exceeds the basement roof surface by 5-10 cm.
3. A basement roof post-cast strip non-topping structure according to claim 2, characterized in that the structure dark beam width is 250 cm.
4. A basement roof post-cast strip non-topping structure construction method according to any one of claims 1 to 3, comprising the steps of:
1) completing the support and binding of the structural formworks at two sides of the post-cast strip, and extending the reinforcing steel bars at the upper corners of the frame beams perpendicular to the two sides of the post-cast strip to penetrate through the frame beams; 2) binding upturning structure hidden beams at two sides of the post-cast strip, and enabling the angle steel bars at the upper part of the frame beam vertical to the post-cast strip to penetrate through the structure hidden beams, wherein the height of the structure hidden beams exceeds the surface of the top plate of the underground chamber by about 5-10 cm; 3) carrying out formwork hanging construction on the hidden beam of the upturning part structure and pouring concrete along with the top plate of the basement; 4) and (4) removing the template and the support frame after the strength of the concrete reaches the design mark, wherein the post-cast strip cannot be subjected to centralized stacking in the span.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550378.0A CN112709256B (en) | 2020-12-24 | 2020-12-24 | Underground chamber roof post-cast strip non-roof-return structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550378.0A CN112709256B (en) | 2020-12-24 | 2020-12-24 | Underground chamber roof post-cast strip non-roof-return structure and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112709256A true CN112709256A (en) | 2021-04-27 |
| CN112709256B CN112709256B (en) | 2022-12-02 |
Family
ID=75544268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011550378.0A Active CN112709256B (en) | 2020-12-24 | 2020-12-24 | Underground chamber roof post-cast strip non-roof-return structure and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112709256B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070006401A1 (en) * | 2005-07-09 | 2007-01-11 | James Thomson | Load bearing construction and method for installation |
| CN101298782A (en) * | 2008-06-13 | 2008-11-05 | 朱邃科 | Method and system for basement engineering water proof and water drain |
| CN107190782A (en) * | 2017-06-09 | 2017-09-22 | 江西建工第二建筑有限责任公司 | A kind of poured band of outer wall of basement structure and its construction method |
| CN210857279U (en) * | 2019-10-23 | 2020-06-26 | 中国建筑第七工程局有限公司 | Post-cast concrete temporary support column |
-
2020
- 2020-12-24 CN CN202011550378.0A patent/CN112709256B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070006401A1 (en) * | 2005-07-09 | 2007-01-11 | James Thomson | Load bearing construction and method for installation |
| CN101298782A (en) * | 2008-06-13 | 2008-11-05 | 朱邃科 | Method and system for basement engineering water proof and water drain |
| CN107190782A (en) * | 2017-06-09 | 2017-09-22 | 江西建工第二建筑有限责任公司 | A kind of poured band of outer wall of basement structure and its construction method |
| CN210857279U (en) * | 2019-10-23 | 2020-06-26 | 中国建筑第七工程局有限公司 | Post-cast concrete temporary support column |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112709256B (en) | 2022-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111945891B (en) | Ring truss high-altitude in-situ splicing construction method | |
| JP2023546279A (en) | Lifting device for bridge water surface pile tie beam and its construction method | |
| CN103452350B (en) | Assembling electronic workshop and construction method thereof | |
| CN109868726A (en) | A kind of prefabricated assembled cylindricality bridge pier and its construction method | |
| CN113846746A (en) | Basement structure beneficial to efficient construction and construction method | |
| CN110158951A (en) | A kind of frame structure wooden template construction method entirely | |
| CN105821962A (en) | Assembled integrated connection structure for prefabricated prestressed reinforced concrete beam and frame columns | |
| CN210684430U (en) | Main bridge jacking system of large-span tied arch bridge | |
| WO2015135442A1 (en) | Prefabricated reinforced concrete member | |
| CN211498483U (en) | Hollow wall pier tie beam formwork system | |
| CN201671063U (en) | Movable steel base for construction precast beams and standard knot thereof | |
| CN215977664U (en) | Basement structure beneficial to efficient construction | |
| CN112709256B (en) | Underground chamber roof post-cast strip non-roof-return structure and construction method | |
| CN203603542U (en) | Fabricated electronic workshop | |
| CN115948993A (en) | Construction method of integral cast-in-place concrete bracket | |
| CN212052355U (en) | Bent cap formwork structure | |
| CN212742154U (en) | Steel reinforced concrete arch bridge | |
| CN111764401B (en) | Full-assembled combined board support | |
| CN208685617U (en) | A kind of foundation underpinning system of old brick foundation building | |
| CN103437549B (en) | Preloading structural part for high and large formwork support system | |
| CN111186780A (en) | Movable arm type tower crane underframe weight type foundation and construction method | |
| CN113279423A (en) | Prefabricated column pier and post-cast strip foundation beam assembly integral construction method | |
| CN113059685A (en) | Precast beam construction system and construction method | |
| CN219690578U (en) | Independent column pier type double-layer plate construction elevator concrete foundation structure | |
| CN212002275U (en) | Arc rib axillary beam top mould device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A structure and construction method for basement roof post pouring belt without returning to the top Effective date of registration: 20231128 Granted publication date: 20221202 Pledgee: China Construction Bank Co.,Ltd. Hefei Chengdong sub branch Pledgor: No 6 Construction Co.,Ltd. of China Construction Fourth Engineering Bureau Registration number: Y2023980067820 |