CN103174163A - Heightening method and heightening structure of opening of prefabricated column foundation - Google Patents
Heightening method and heightening structure of opening of prefabricated column foundation Download PDFInfo
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- CN103174163A CN103174163A CN2011104415185A CN201110441518A CN103174163A CN 103174163 A CN103174163 A CN 103174163A CN 2011104415185 A CN2011104415185 A CN 2011104415185A CN 201110441518 A CN201110441518 A CN 201110441518A CN 103174163 A CN103174163 A CN 103174163A
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- rim
- cup
- prefabricated post
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- reinforcing bar
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Abstract
The invention discloses a heightening method and a heightening structure of an opening of a prefabricated column foundation. The heightening method of the opening of the prefabricated column foundation includes the following steps of conducting dabbing on the top of the prefabricated column foundation at first; respectively implanting reinforcing steel bars into the top portion of the opening of the prefabricated column foundation at intervals along the top portion of the opening of the prefabricated column foundation through a bar implanting method, wherein the implanting depth of the reinforcing steel bars is not larger than 20 times of the diameter of each reinforcing steel bar; binding the reinforcing steel bars through stirrups after finishing bar implanting, wherein all reinforcing steel bars are connected into a whole through the stirrups; and pouring fine stone concrete on the top of the opening of the prefabricated column foundation, wherein the mark of the fine stone concrete reaches a next higher level than that of the concrete of the prefabricated column foundation, a heightened opening is formed after the fine stone concrete, the reinforcing bars and the stirrups are poured together, and the height of the heightened opening is equal to the needed heightened height. The heightening method and the heightening structure of the opening of the prefabricated column foundation have the advantages of being high in reliability and stability of the structure, low in construction cost, convenient to construct, free from waste of raw materials and the like.
Description
Technical field
what the present invention relates to a kind of prefabricated post basis rim of a cup increases method and structure, belongs to the building structure technology field.
Background technology
at present, in existing design of building structures and work progress, usually because of design, the error of construction or the change of design condition cause the prefabricated post basis reserved degree of depth of rim of a cup of having made not meet the related specifications requirement, this will greatly affect stability and the safety of prefabricated post, in the prior art, do not reach the situation of requirement for this prefabricated post basis rim of a cup height, often adopt and again by needed height, make whole prefabricated post basis, or directly in the method for the rim of a cup top on former prefabricated post basis concreting, meet needed rim of a cup height, although first method has reliable in structure, the advantage of good stability, but it is high to exist cost, the problem that waste of raw materials is large, the second way but exists all poor problems of reliability of structure and stability.Therefore the mode of increasing of existing high rim of a cup prefabricated post basis rim of a cup is not ideal.
Summary of the invention
the object of the invention is to, provide a kind of reliability of structure and stability all high and cost is lower, easy construction, can not waste raw-material prefabricated post basis rim of a cup increase method and structure, to overcome the deficiencies in the prior art.
technical scheme of the present invention is achieved in that the method for increasing of a kind of prefabricated post of the present invention basis rim of a cup is, first by top, prefabricated post basis dabbing, then adopt the bar planting mode, along the rim of a cup top perimeter compartment of terrain on prefabricated post basis, reinforcing bar is implanted respectively to the rim of a cup top into the prefabricated post basis, the implantation depth of its reinforcing bar is not less than the diameter of 20 times of reinforcing bars, after bar planting is complete, adopt the stirrup colligation on reinforcing bar, by stirrup, all reinforcing bars are connected into to an integral body, then adopt than the higher leveled pea gravel concreten of the concrete grade on prefabricated post basis and built at the rim of a cup top on prefabricated post basis, form and increase rim of a cup together with making pea gravel concreten and adding reinforcing bar and stirrup is cast in, its height of increasing rim of a cup equals the required height of increasing.
above-mentioned bar planting mode is the chemically-planted steel bar mode.
the structure of increasing of the of the present invention a kind of prefabricated post basis rim of a cup built according to said method is: this structure comprises the prefabricated post basis, be provided with and increase rim of a cup on the rim of a cup top on prefabricated post basis, this is increased rim of a cup and is built and formed by the higher leveled pea gravel concreten of the concrete grade than prefabricated post basis and reinforcing bar and stirrup, its reinforcing bar is implanted in the rim of a cup top on prefabricated post basis by the mode of chemically-planted steel bar, and reinforcing bar is vertically fixed on the rim of a cup top perimeter on prefabricated post basis by mode spaced apart, at least be banded with two-layer stirrup on reinforcing bar, pea gravel concreten all wraps all reinforcing bars and stirrup.
the every layer stirrup of above-mentioned colligation on reinforcing bar and the spacing distance between the adjacent layer stirrup are 50mm～100mm.
the top of above-mentioned reinforcing bar is less than or equal to the height of increasing rim of a cup but is greater than 30 mm to the distance at the rim of a cup top on prefabricated post basis.
above-mentioned reinforcing bar is vertically fixed on the rim of a cup top perimeter on prefabricated post basis by mode spaced apart, the spacing distance between its adjacent reinforcing bar is 100mm～300mm.
the diameter of above-mentioned reinforcing bar is 12mm～20mm.
the bar diameter of above-mentioned stirrup is 6mm～10mm.
owing to having adopted technique scheme, the present invention is by implanting reinforcing bar at top, former prefabricated post basis, increase in scope on the prefabricated post basis mode that adds stirrup, make the rim of a cup of increasing on the former rim of a cup in prefabricated post basis become one section Reinforced Concrete Short that is connected as a whole safety and stability with former rim of a cup simultaneously.This important in inhibiting of safety and stability for prefabricated post.Therefore, the present invention and prior art ratio, the present invention not only has advantages of that reliability of structure and stability are all high, but also has cheap, easy construction, can not waste the advantages such as raw material.
The accompanying drawing explanation
fig. 1 is structural representation of the present invention;
the A that Fig. 2 is Fig. 1 is to the partial structurtes schematic diagram.
the high rim of a cup prefabricated post of being labeled as in accompanying drawing: 1-basis, the 2-Reinforcement, the 3-reinforced steel, the 4-stirrup, 5-increases rim of a cup, the height of the high rim of a cup of h-.
The specific embodiment
below in conjunction with drawings and Examples, the present invention is further illustrated, but not as the foundation to the present invention's restriction.
embodiments of the invention: the method for increasing of a kind of prefabricated post of the present invention basis rim of a cup is implemented on the existing prefabricated post basis 1 of having made, during enforcement, first by prefabricated post basis 1 top dabbing, then adopt the bar planting mode, along the rim of a cup top perimeter compartment of terrain on prefabricated post basis 1, reinforcing bar 2 is implanted respectively to the rim of a cup top into prefabricated post basis 1, the implantation depth of its reinforcing bar 2 is not less than the diameter of 20 times of reinforcing bars 2, after bar planting is complete, adopt stirrup 3 colligations on reinforcing bar 2, by stirrup 3, all reinforcing bars 2 are connected into to an integral body, then adopt than the higher leveled pea gravel concreten of the concrete grade on prefabricated post basis 1 and built at the rim of a cup top on prefabricated post basis 1, form and increase rim of a cup 4 together with making pea gravel concreten and adding reinforcing bar 2 and stirrup 3 is cast in, its height h that increases rim of a cup 4 equals the required height of increasing, its bar planting mode preferably adopts chemically-planted steel bar mode of the prior art, at first holed in the position that will implant reinforcing bar 2, then residue in cleaning eye, after adopting again in prior art in the chemical glue finished product injection inlet hole that bar planting is used, reinforcing bar 2 is inserted in inlet hole, after chemical glue solidifies, can complete bar planting.When carrying out bar planting, also can adopt other bar planting mode to carry out bar planting.
the schematic diagram of increasing structure of the of the present invention a kind of prefabricated post basis rim of a cup built according to said method as depicted in figs. 1 and 2, this structure comprises the existing prefabricated post basis 1 of having made, produce and increase rim of a cup 4 on the rim of a cup top on former prefabricated post basis 1 during enforcement, this is increased rim of a cup 4 and is built and formed by the higher leveled pea gravel concreten of concrete grade than former prefabricated post basis 1 and reinforcing bar 2 and stirrup 3, its reinforcing bar 2 is implanted in the rim of a cup top on prefabricated post basis 1 by the mode of traditional chemically-planted steel bar, and reinforcing bar 2 is vertically fixed on the rim of a cup top perimeter on prefabricated post basis 1 by mode spaced apart, at least be banded with two-layer stirrup 3 on reinforcing bar 2, pea gravel concreten all wraps all reinforcing bars 2 and stirrup 3, every layer stirrup 3 and spacing distance adjacent layer stirrup 3 between of its colligation on reinforcing bar 2 is 50mm～100mm, the top of its every reinforcing bar 2 is less than or equal to the height h that increases rim of a cup 4 but is greater than 30 mm to the distance at the former rim of a cup top on prefabricated post basis 1, when reinforcing bar 2 is vertically fixed on to the rim of a cup top perimeter on prefabricated post basis 1 by mode spaced apart, the spacing distance between its adjacent reinforcing bar 2 is controlled at 100mm～300mm scope, reinforcing bar 2 can adopt the reinforcing bar that diameter is 12mm～20mm, its stirrup 3 can adopt reinforcing bar that diameter is 6mm～10mm to form rectangular shape, round-shaped or other needed shape according to the needs bending of using.
Claims (8)
1. prefabricated post basis rim of a cup increases method, it is characterized in that: first by (1) top, prefabricated post basis dabbing, then adopt the bar planting mode along the rim of a cup top perimeter compartment of terrain on prefabricated post basis (1), reinforcing bar (2) to be implanted respectively into the rim of a cup top of prefabricated post basis (1), the implantation depth of its reinforcing bar (2) is not less than the diameter of 20 times of reinforcing bars (2), after bar planting is complete, adopt stirrup (3) colligation on reinforcing bar (2), by stirrup (3), all reinforcing bars (2) are connected into to an integral body, then adopt than the higher leveled pea gravel concreten of concrete grade on prefabricated post basis (1) and built at the rim of a cup top on prefabricated post basis (1), make pea gravel concreten and add reinforcing bar (2) and stirrup (3) and form together with being cast in and increase rim of a cup (4), its height (h) of increasing rim of a cup (4) equals the required height of increasing.
Prefabricated post according to claim 1 basis rim of a cup increase method, it is characterized in that: described bar planting mode is the chemically-planted steel bar mode.
3. prefabricated post basis rim of a cup increases structure, comprise prefabricated post basis (1), it is characterized in that: on the rim of a cup top on prefabricated post basis (1), be provided with and increase rim of a cup (4), this is increased rim of a cup (4) and is built and formed by the higher leveled pea gravel concreten of concrete grade than prefabricated post basis (1) and reinforcing bar (2) and stirrup (3), its reinforcing bar (2) is implanted in the rim of a cup top on prefabricated post basis (1) by the mode of chemically-planted steel bar, and reinforcing bar (2) is vertically fixed on the rim of a cup top perimeter on prefabricated post basis (1) by mode spaced apart, at least be banded with two-layer stirrup (3) on reinforcing bar (2), pea gravel concreten all wraps all reinforcing bars (2) and stirrup (3).
Prefabricated post according to claim 3 basis rim of a cup increase structure, it is characterized in that: the every layer stirrup (3) of colligation on reinforcing bar (2) and the spacing distance between adjacent layer stirrup (3) are 50mm～100mm.
Prefabricated post according to claim 3 basis rim of a cup increase structure, it is characterized in that: the top of reinforcing bar (2) to the rim of a cup top on prefabricated post basis (1) apart from being less than or equal to the height (h) of increasing rim of a cup (4) but being greater than 30 mm.
6. prefabricated post according to claim 3 basis rim of a cup increases structure, it is characterized in that: reinforcing bar (2) is vertically fixed on the rim of a cup top perimeter on prefabricated post basis (1) by mode spaced apart, and the spacing distance between its adjacent reinforcing bar (2) is 100mm～300mm.
Prefabricated post according to claim 3 basis rim of a cup increase structure, it is characterized in that: the diameter of reinforcing bar (2) is 12mm～20mm.
Prefabricated post according to claim 3 basis rim of a cup increase structure, it is characterized in that: the bar diameter of stirrup (3) is 6mm～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104415185A CN103174163A (en) | 2011-12-26 | 2011-12-26 | Heightening method and heightening structure of opening of prefabricated column foundation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104415185A CN103174163A (en) | 2011-12-26 | 2011-12-26 | Heightening method and heightening structure of opening of prefabricated column foundation |
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| CN103174163A true CN103174163A (en) | 2013-06-26 |
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| CN2011104415185A Pending CN103174163A (en) | 2011-12-26 | 2011-12-26 | Heightening method and heightening structure of opening of prefabricated column foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695491A (en) * | 2013-12-04 | 2015-06-10 | 贵阳铝镁设计研究院有限公司 | Reinforcement method and structure for cup of unqualified precast column foundation |
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| CN101117801A (en) * | 2007-09-05 | 2008-02-06 | 哈尔滨工业大学 | Superposition pile for engineering reconstruction and pile forming method |
| EP1936039A1 (en) * | 2006-12-05 | 2008-06-25 | Compagnie du Sol | Method of strengthening foundations comprising a slab buried in the ground, in particular foundations for pylons, and structure obtained |
| CN101418574A (en) * | 2008-09-17 | 2009-04-29 | 山西太行建设开发有限公司 | Construction method for reinforcing grade beam |
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2011
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| EP1936039A1 (en) * | 2006-12-05 | 2008-06-25 | Compagnie du Sol | Method of strengthening foundations comprising a slab buried in the ground, in particular foundations for pylons, and structure obtained |
| CN101117801A (en) * | 2007-09-05 | 2008-02-06 | 哈尔滨工业大学 | Superposition pile for engineering reconstruction and pile forming method |
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| 中国建筑标准设计研究院: "《国家建筑标准设计图集. 混凝土结构施工图平面整体表示方法制图规则和构造详图（独立基础、条形基础、筏板基础及桩基承台）》", 30 September 2011, article "高杯口独立基础杯壁和基础短柱配筋构造", pages: 65 * |
| 中国建筑标准设计研究院: "《国家建筑标准设计图集. 混凝土结构施工图平面整体表示方法制图规则和构造详图（独立基础、条形基础、筏板基础及桩基承台）》", 30 September 2011, 中国计划出版社, article 魏丽: "排架柱杯形基础加固方法探讨", pages: 91 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695491A (en) * | 2013-12-04 | 2015-06-10 | 贵阳铝镁设计研究院有限公司 | Reinforcement method and structure for cup of unqualified precast column foundation |
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Application publication date: 20130626 |