CN210857279U - Post-cast concrete temporary support column - Google Patents
Post-cast concrete temporary support column Download PDFInfo
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- CN210857279U CN210857279U CN201921789517.8U CN201921789517U CN210857279U CN 210857279 U CN210857279 U CN 210857279U CN 201921789517 U CN201921789517 U CN 201921789517U CN 210857279 U CN210857279 U CN 210857279U
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Abstract
The utility model provides a post-cast strip concrete temporary support post. Including the concrete cylinder of cast in situ, the upper end setting of concrete cylinder is at the tip of the crossing girder in post-cast strip and secondary beam, and the lower extreme of concrete cylinder supports on the basement bottom plate. Adopt the support of cast in situ concrete temporary support post as the post-cast strip, form a whole with former structure, possess the advantage that stabilizes the support, avoid the phenomenon that the weak point propped or did not prop. After the support is stable, the end of encorbelmenting of post-cast strip can be demolished in advance, sparingly has enough to meet the need the glassware, saves basement space simultaneously, and underground construction material transports the convenience. And after the post-cast strip is sealed and reaches the strength, the support columns are cut according to the size by adopting a rope saw and can be used for partial door opening lintel and window roof pressing. The supporting system that concrete columns were established to roof post-cast strip both sides cantilever beam board end has not only avoided the material of traditional steel-pipe frame template supporting system to warp, and the influence of template material loss change to cantilever beam board atress has improved the turnover efficiency of support frame material moreover.
Description
Technical Field
The utility model relates to a post-cast strip concrete temporary support post.
Background
The traditional roof post-cast strip formwork support system adopts steel pipe frame formworks or bowl buckle frame formworks to independently support, the steel pipe frame formworks or bowl buckle frame formworks are reserved when the formworks on two sides are removed, the steel pipe frame formworks or bowl buckle frame formworks can be removed after concrete pouring in a post-cast strip is completed and maintained for 28 days, and the installation of the traditional roof post-cast strip support system is schematically shown in figure 1. The traditional post-cast strip support system has good integrity, and when the support system is not deformed or damaged, the concrete in the span section of the post-cast strip is always kept in the initial stress state during the concrete pouring of the main body in the time period from the main body pouring to the completion of the pouring of the post-cast strip by the beam plates on the two sides. But also has disadvantages: (1) occupying a large amount of templates and supporting materials for a long time. (2) The daily management difficulty is big, and the support material is very fragile, even the manual dismantlement. (3) The materials such as the template, the square timber, the jacking and the like are easy to deform, rot, rust and the like, so that the template supporting system of the post-pouring belt is loosened. (4) Traditional post-cast strip support system occupation space leads to underground installation engineering to alternate the difficulty in advance, and equipment advances and goes out often need to tear open and prop or trade and prop, and the in-process probably leads to supporting the destruction, has the potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model provides a can form a whole, support firm, the supporting material can be demolishd in advance so that the turnover, save the interim support column of post-cast strip concrete in basement space with original structure.
The technical scheme of the utility model is realized like this: the post-cast concrete temporary support column comprises a cast-in-place concrete column body, the upper end of the concrete column body is arranged at the end parts of a main beam and a secondary beam which are intersected in a post-cast strip, and the lower end of the concrete column body is supported on a basement bottom plate.
Further, the center of the support column is 300mm away from the edge of the post-cast strip.
Furthermore, the concrete columns are erected together in the process of erecting the beam-slab template of the basement structure.
By adopting the technical scheme, the beneficial effects of the utility model are that: adopt the support of cast in situ concrete temporary support post as the post-cast strip, form a whole with former structure, possess the advantage that stabilizes the support, avoid the phenomenon that the weak point propped or did not prop. After the support is stable, the end of encorbelmenting of post-cast strip can be demolished in advance, sparingly has enough to meet the need the glassware, saves basement space simultaneously, and underground construction material transports the convenience. And after the post-cast strip is sealed and reaches the strength, the support columns are cut according to the size by adopting a rope saw and can be used for partial door opening lintel and window roof pressing. The supporting system that concrete columns were established to roof post-cast strip both sides cantilever beam board end has not only avoided the material of traditional steel-pipe frame template supporting system to warp, and the influence of template material loss change to cantilever beam board atress has improved the turnover efficiency of support frame material moreover, has higher economic benefits. Meanwhile, the basement construction channel is convenient to leave, and the chiseling cleaning of construction joints on two sides of the post-cast strip and the adjustment of the steel bars during secondary formwork supporting of the post-cast strip are also convenient to carry out. During construction, the constructional column support is prevented from being damaged by horizontal impact load, and the floor slab on the span of the post-cast strip is ensured not to be excessively loaded.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic illustration of a conventional roof strip support system installation;
FIG. 2 is a front view of the post-cast concrete temporary support post of the present invention;
FIG. 3 is a plan layout view of post-cast concrete temporary support columns;
wherein: 1-post-pouring belt, 2-butt-joint fastener and 3-independent support; 10-basement top plate, 11-basement top plate frame beam, 12-basement bottom plate, 13-concrete temporary support column, 14-basement frame column and 15-basement top plate secondary beam.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses a concrete embodiment of post-cast strip concrete temporary support post: the long time of staying to subsiding the post-cast strip, and post-cast strip accumulated length is big, and the material quantity such as steel pipe that adopts traditional formwork support system to occupy is big, and the construction of formwork support system dwell time overlength adopts the support of cast in situ concrete temporary support post as the post-cast strip, forms a whole with former structure, possesses the advantage of firm support, avoids the weak phenomenon of propping or not propping. After the support is stable, the end of encorbelmenting of post-cast strip can be demolished in advance, sparingly has enough to meet the need the glassware, saves basement space simultaneously, and underground construction material transports the convenience. And after the post-cast strip is sealed and reaches the strength, the support columns are cut according to the size by adopting a rope saw and can be used for partial door opening lintel and window roof pressing.
In view of the defects of the traditional post-cast strip template support system, the traditional post-cast strip template support system is analyzed and optimized, namely support columns are arranged at the tail ends of beam slab cantilevers at two ends of a post-cast strip to replace the traditional support system. And when the common beam slab template is installed and concrete is poured, the construction of supporting column supports is carried out at the same time, after the beam slab and the supporting columns reach 100% of design strength, the template supports are completely removed, and at the moment, the beam slabs on two sides of the post-cast strip are supported by the preset concrete constructional columns. In the traditional formwork support system, the beam plates on two sides of the post-cast strip take a formwork support frame body as a stress system, and the optimized scheme takes a concrete constructional column as the support system.
The supporting system that concrete columns were established to roof post-cast strip both sides cantilever beam board end has not only avoided the material of traditional steel-pipe frame template supporting system to warp, and the influence of template material loss change to cantilever beam board atress has improved the turnover efficiency of support frame material moreover, has higher economic benefits. Meanwhile, the basement construction channel is convenient to leave, and the chiseling cleaning of construction joints on two sides of the post-cast strip and the adjustment of the steel bars during secondary formwork supporting of the post-cast strip are also convenient to carry out. During construction, the constructional column support is prevented from being damaged by horizontal impact load, and the floor slab on the span of the post-cast strip is ensured not to be excessively loaded.
In this embodiment, as shown in fig. 2, the distance between the basement columns is 8.4m × 8.4.4 m, the height of the structural layer is 3.6/4.6/5.6m, through checking and calculation of bearing capacity and stability, it is determined that a 200mm × 200mm concrete structural column independent support is respectively arranged at the end of each of the main beam and the secondary beam intersecting with the post-cast strip, the angle rib 4C10, the stirrup C6@250mm, and the center of the support column is 300mm away from the edge of the post-cast strip, and when the adjacent beams and beams are at the support column, and the clear span is greater than or equal to 5 m, a support column is additionally arranged at the bottom of the middle slab.
The floor slab in the span of the post-cast strip can be regarded as a trilateral supporting plate under the support of the frame column and the beam end supporting column, and the safety and stability of the trilateral supporting plate structure can meet the requirements through inquiring a calculation chart, so that no supporting plate is arranged on the edges of two sides of the post-cast strip without additionally arranging supports.
The construction steps and requirements for arranging concrete support columns at the beam ends on the two sides of the post-cast strip are as follows:
(1) concrete support columns at beam ends on two sides of the post-cast strip are firstly positioned on the bottom plate, the positions of the concrete support columns are determined to be 200mm positions on the inner sides of the beam ends, and paying-off is carried out according to an arrangement scheme.
(2) And the concrete support columns at the beam ends on the two sides of the post-cast strip are simultaneously erected and reinforced in the erecting process of the beam plate template of the basement structure, and are simultaneously poured and maintained in the concrete pouring process of the basement frame column.
(3) When the beam-end concrete support column is erected, the support column and beam plates on two sides of the post-cast strip cannot be separated.
(4) And the concrete support columns at the beam ends on the two sides of the post-cast strip are used for cleaning residues, garbage and the like of column heads when beam slab concrete is poured.
(5) The basement roof template is integrally erected according to a construction scheme during supporting.
(6) When concrete on two sides of the basement post-cast strip reaches the dismantling condition, the formwork support in the post-cast strip is dismantled at the same time, and the concrete support columns cannot be collided when the formwork support is dismantled.
(7) After the post-cast strip of the basement roof meets the pouring condition, loose residues on the concrete section of the beam plates on two sides of the post-cast strip are chiseled, and a groove is chiseled in the middle of the beam plates so as to facilitate the installation of a water stop strip.
(8) And cleaning, trimming and binding the reinforcing steel bars in the post-cast strip according to the design requirement.
(9) And (3) re-supporting the top plate post-cast strip template, wherein the secondary erection of the top plate post-cast strip template is carried out after the concrete pouring of the basement bottom plate post-cast strip is finished, and the secondary erection of the template meets the requirements of construction schemes of template engineering and specifications.
(10) And curing the post-cast strip concrete according to design requirements after the post-cast strip concrete is poured.
(11) After the concrete strength of the formwork supported on the post-cast strip reaches 100% and meets the design and specification requirements, chiseling concrete support columns on two sides of the post-cast strip after the concrete formwork of the basement roof is removed, chiseling column head parts in chiseling, trimming the concrete surface of the bottom of the beam plate, and leveling by adopting 1: 3 cement mortar.
(12) The concrete constructional column at the beam ends of two sides of the post-cast strip of the basement is sawed off by a rope saw when being dismantled, so that the basement bottom plate cannot be damaged by integrally pushing the concrete constructional column, and the residual concrete contact surface is chiseled off, so that the safety of constructors is ensured, lighting equipment and safety warning devices required during construction are ensured, and special-purpose safety personnel are arranged to carry out side stations.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. Post-cast strip concrete temporary support post, its characterized in that, including the concrete cylinder of cast in situ, the upper end setting of concrete cylinder is at the crossing girder of post-cast strip and the tip of secondary beam, and the lower extreme of concrete cylinder supports on the basement bottom plate.
2. A post-cast concrete temporary support post according to claim 1, characterized in that the center of the post is 300mm from the edge of the post-cast strip.
3. The post-cast concrete temporary support post according to claim 1 or 2, wherein the concrete column is built together during the building process of the beam slab formwork of the basement structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921789517.8U CN210857279U (en) | 2019-10-23 | 2019-10-23 | Post-cast concrete temporary support column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921789517.8U CN210857279U (en) | 2019-10-23 | 2019-10-23 | Post-cast concrete temporary support column |
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| CN210857279U true CN210857279U (en) | 2020-06-26 |
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| CN201921789517.8U Active CN210857279U (en) | 2019-10-23 | 2019-10-23 | Post-cast concrete temporary support column |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593311A (en) * | 2019-10-23 | 2019-12-20 | 中国建筑第七工程局有限公司 | Post-cast strip concrete temporary support column |
| CN112709256A (en) * | 2020-12-24 | 2021-04-27 | 中建四局第六建设有限公司 | Underground chamber roof post-cast strip non-roof-return structure and construction method |
| CN113482394A (en) * | 2021-08-06 | 2021-10-08 | 中建三局集团(深圳)有限公司 | Structural beam plate back-jacking reinforcing method |
| CN113818712A (en) * | 2021-08-31 | 2021-12-21 | 上海宝冶集团有限公司 | Method for reinforcing underground space of corresponding area of component stacking area |
| CN113846746A (en) * | 2021-10-13 | 2021-12-28 | 成都建工第一建筑工程有限公司 | Basement structure beneficial to efficient construction and construction method |
| CN115387392A (en) * | 2022-08-23 | 2022-11-25 | 中国五冶集团有限公司 | Basement post-cast strip construction structure and method |
-
2019
- 2019-10-23 CN CN201921789517.8U patent/CN210857279U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593311A (en) * | 2019-10-23 | 2019-12-20 | 中国建筑第七工程局有限公司 | Post-cast strip concrete temporary support column |
| CN112709256A (en) * | 2020-12-24 | 2021-04-27 | 中建四局第六建设有限公司 | Underground chamber roof post-cast strip non-roof-return structure and construction method |
| CN113482394A (en) * | 2021-08-06 | 2021-10-08 | 中建三局集团(深圳)有限公司 | Structural beam plate back-jacking reinforcing method |
| CN113818712A (en) * | 2021-08-31 | 2021-12-21 | 上海宝冶集团有限公司 | Method for reinforcing underground space of corresponding area of component stacking area |
| CN113846746A (en) * | 2021-10-13 | 2021-12-28 | 成都建工第一建筑工程有限公司 | Basement structure beneficial to efficient construction and construction method |
| CN115387392A (en) * | 2022-08-23 | 2022-11-25 | 中国五冶集团有限公司 | Basement post-cast strip construction structure and method |
| CN115387392B (en) * | 2022-08-23 | 2023-12-15 | 中国五冶集团有限公司 | Basement post-pouring strip construction structure and method |
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