CN105672570A - Multi-bundle-shaped ultra-high-performance concrete constraint common concrete T-shaped column and T-shaped short-leg shear wall - Google Patents
Multi-bundle-shaped ultra-high-performance concrete constraint common concrete T-shaped column and T-shaped short-leg shear wall Download PDFInfo
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- CN105672570A CN105672570A CN201610155903.6A CN201610155903A CN105672570A CN 105672570 A CN105672570 A CN 105672570A CN 201610155903 A CN201610155903 A CN 201610155903A CN 105672570 A CN105672570 A CN 105672570A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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Abstract
The invention discloses a multi-bundle-shaped ultra-high-performance concrete constraint common concrete T-shaped column which comprises a T-shaped concrete special-shaped column. A column body framework of the T-shaped concrete special-shaped column comprises an outer wrapping plate wrapping the special-shaped column and inner separation plates for separating space in the section of the special-shaped column and is cast-molded through ultra-high-performance concrete. The section of the special-shaped column is divided into a plurality of independent unit bodies through the outer wrapping plate and the inner separation plates, and a plurality of bundle-shaped independent split columns are formed. Corresponding orthogonal inner separation plates are arranged on the intersection area of two column legs of the T-shaped concrete special-shaped column. Similarly, the invention further discloses a T-shaped short-leg shear wall. The self-constraint function of the concrete is fully utilized, the outer wrapping constraint function of steel on the concrete is replaced, the steel is saved, and the manufacturing cost is reduced. Based on the good compactness, casting performance and high strength of UHPC, the bearing capacity and durability performance of the special-shaped column or the short-leg shear wall structure can be remarkably improved through the multi-bundle shape, and the advantages of being simple in structure, novel in material, excellent in performance and the like are achieved.
Description
Technical field
The invention belongs to construction engineering technical field, particularly relate to a kind of many pencils ultra-high performance concrete constraint normal concrete T-shaped post and T-shaped shear wall with short piers.
Background technology
Modern civilization has expedited the emergence of people to the transformation of things aesthetic standards, and as erecting to load-bearing component column in skeleton construction, its traditional form is square-section, and the stupefied outstanding metope of post have impact on the performance of building function and the discomfort of visual perception. Special-shaped column structure has and the feature of infilled wall uniform thickness, therefore avoids the stupefied outstanding metope of post, increases the actual usable floor area in room, it is to increase " percentage of usable dwelling area ", dark in the favor of owner and user. Along with the commercial building such as house, office constantly develops towards direction that is high-rise and superelevation layer, the width of special-shaped column structure post limb certainly will be strengthened, and thereby produces the contradiction between mechanical property and building using function, limits promoting the use of of special-shaped column structure.
It is the shear wall of 5～8 that shear wall with short piers is often referred to the ratio of wall limb cross-sectional height and thickness, and as the passage type of Special-Shaped Column and general shear wall, it is widely used in high residential building and large-scale commercial building, and the importance of structure is self-evident. Similar with Special-Shaped Column, the section form of shear wall with short piers is also diversified, at present mainly with L, T, ten, Z-section arranged in form is in the point of intersection of room partitioning wall. Along with the growth of urban population and the high speed development of economy, architecture ensemble also constantly develops towards executive information systems direction, but land used anxiety also needs to meet people to the demand of " percentage of usable dwelling area ", this just proposes more harsh requirement to structure, namely under the prerequisite of only big increase shear wall with short piers cross-sectional width, ensure the demand of its supporting capacity, this issue handling is improper, then certainly will limit promoting the use of of short-shear wall structure.
In order to meet the demand of structural-load-carrying capacity, many enhancement type measures are used to Special-Shaped Column or short-shear wall structure, and these measures mainly comprise raising concrete strength (as adopted high-strength concrete), increase steel ratio (as adopted shaped steel concrete) and use confined concrete (such as concrete filled steel tube) etc.Although high-strength concrete Special-Shaped Column or shear wall with short piers can improve post or the supporting capacity of wall itself, but the fragility of high-strength concrete is very unfavorable to the anti-seismic performance of structural column or body of wall itself. Certainly built-in shaped steel can make up the deficiency of high-strength concrete in this respect, but another prominent question is also following, namely in elongated Special-Shaped Column post limb or shear wall with short piers wall limb, arrange that more shaped steel is by very difficult to the arrangement of reinforcement of beam column node area or beam-wall node area, thus cause the space of node area narrower and small, to during concrete placement, wherein the decline of coarse aggregate is very unfavorable for this, easily causes joint cores the phenomenons such as cavity, honeycomb occur. Obviously, adopt confined concrete technology can avoid the generation of above-mentioned phenomenon better, steel pipe concrete profiled pile or shear wall with short piers have acted on the advantage of concrete filled steel tube, but in steel usage quantity, then seem economical not, more very part is that the phenomenon of 90 degree of inner corner trims easily occur in steel pipe concrete profiled pile or shear wall with short piers, it can cause steel pipe that concrete effect of contraction is not strong, and composite behaviour is deteriorated. Although corresponding construction measure (as arranged ribbed stiffener and binding bar) is also suggested the performance for improving steel pipe concrete profiled pile or shear wall with short piers, but steel pipe can be caused bigger damage by these measures, and tooling cost also increases considerably. In addition, the steel pipe of outsourcing is anticorrosion in the steel pipe concrete profiled pile later stage, fire prevention processes also very loaded down with trivial details, if dealing with improperly, is then extremely unfavorable for endurance quality and the fire resistance of Special-Shaped Column or short-shear wall structure.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of simple structure, many pencils ultra-high performance concrete convenient, excellent property, economy of constructing retrains normal concrete T-shaped post and T-shaped shear wall with short piers.
For solving the problems of the technologies described above, the present invention is by the following technical solutions: many pencils ultra-high performance concrete constraint normal concrete T-shaped post, comprise T-shaped concrete profiled pile, the cylinder skeleton of T-shaped concrete profiled pile comprises the skin plating being coated on outside Special-Shaped Column and separates the internal partition of internal space, Special-Shaped Column cross section, cylinder skeleton is built shaping by ultra-high performance concrete, and forms the skin plating of skeleton and internal partition connects with each other; Special-Shaped Column cross section is divided into multiple independent cell cube by skin plating and internal partition, forms the independent separated column of multiple pencil; Two post limb confluences of T-shaped concrete profiled pile arrange corresponding orthogonal internal partition.
Internal partition is perpendicular to Special-Shaped Column each post limb height direction and is parallel to post width thickness direction.
In each cell cube, place reinforcement cage skeleton, and adopt normal concrete to build closely knit by each cell cube.
Reinforcement cage skeleton is rectangle, becomes by longitudinal reinforcing bar and horizontal hoop colligation.
T-shaped concrete profiled pile is the side column in Framed Structure with Special-Shaped Columns.
Many pencils ultra-high performance concrete constraint normal concrete T-shaped shear wall with short piers, comprise T-shaped concrete shear wall with short piers, the wall skeleton of T-shaped concrete shear wall with short piers comprises the skin plating being coated on outside shear wall with short piers and separates the internal partition of internal space, shear wall with short piers cross section, wall skeleton is built shaping by ultra-high performance concrete, and forms the skin plating of skeleton and internal partition connects with each other; Shear wall with short piers cross section is divided into multiple independent cell cube by skin plating and internal partition, forms the independent split wall of multiple pencil; Two wall limb confluences of T-shaped concrete shear wall with short piers arrange corresponding orthogonal internal partition.
Internal partition is perpendicular to shear wall with short piers each wall limb height direction and is parallel to wall limb width.
In each cell cube, place reinforcement cage skeleton, and adopt normal concrete to build closely knit by each cell cube.
Reinforcement cage skeleton is rectangle, becomes by longitudinal reinforcing bar and horizontal hoop colligation.
For the deficiency that existing T-shaped concrete profiled pile exists, inventor has devised a kind of many pencils ultra-high performance concrete constraint normal concrete T-shaped post, comprise T-shaped concrete profiled pile, the cylinder skeleton of T-shaped concrete profiled pile comprises the skin plating being coated on outside Special-Shaped Column and separates the internal partition of internal space, Special-Shaped Column cross section, and cylinder skeleton is built shaping by ultra-high performance concrete; Special-Shaped Column cross section is divided into multiple independent cell cube by skin plating and internal partition, forms the independent separated column of multiple pencil; Two post limb confluences of T-shaped concrete profiled pile arrange corresponding orthogonal internal partition. Similarly, contriver have also been devised a kind of many pencils ultra-high performance concrete constraint normal concrete T-shaped shear wall with short piers.
The present invention achieves increasing substantially of T-shaped post or wall supporting capacity by three aspects:
<1>use the ultra-high performance concrete of high compactness and high strength as the skin plating of T-shaped post or wall and internal partition, form the constraint skeleton of inner normal concrete, and this two " height " has exactly impelled ultra-high performance concrete can replace conventional steel to concrete constraint material, overcome the defects such as outside steel pipe erosion resistance is poor, apyrous is bad, be also conducive to saving steel and reduce the expense needed for construction costs and later maintenance;
<2>ultra-high performance concrete has followed the feature of concrete pourability, it can be used as internal partition that the internal space of T-shaped post or wall is carried out subregion, form independent separated column or the wall of multiple pencil, less cylinder or wall section can play the effect retraining and compacting, and are conducive to the effect of restraint that concrete material is stronger; And by arranging corresponding orthogonal internal partition at two post limbs or wall limb confluence, T-shaped post or the disadvantageous effect of wall 90 degree of inner corner trim coupled columns or wall supporting capacity can be reduced, greatly improve the bearing capacity of T-shaped concrete profiled pile or T-shaped shear wall with short piers;
<3>configurable polytype strengthening measure in each Shu Duli separated column or wall, such as reinforcement cage skeleton, type steel skeleton, steel pipe, pvc pipe and high-strength concrete etc., conveniently meets T-shaped post or the wall design form of different bearer power demand.
In a word, the present invention makes full use of concrete from binding function (ultra-high performance concrete constraint normal concrete), replaces steel to concrete outsourcing effect of contraction with this, and saving steel also reduces cost; Based on the excellent density of ultra-high performance concrete, building property and high strength, many pencils can significantly improve supporting capacity and the endurance quality of Special-Shaped Column or short-shear wall structure, has the features such as structure is simple, material is novel, superior performance. In addition, can being realized the requirement of building industry by prefabricated ultra-high performance concrete cylinder or wall skeleton, frivolous high-strength ultra-high performance concrete is conducive to mechanize to lift simultaneously, can effective accelerating construction progress.
Accompanying drawing explanation
Fig. 1 is cylinder or the wall skeleton schematic cross-section of the present invention's many pencils ultra-high performance concrete constraint cylinder skeleton of normal concrete T-shaped post or T-shaped shear wall with short piers.
Fig. 2 is the schematic cross-section of many pencils ultra-high performance concrete constraint normal concrete T-shaped post or T-shaped shear wall with short piers.
In Fig. 1 and Fig. 2: 1 internal partition one, 2 internal partition two, 3 internal partition three, 4 internal partition four, 5 skin plating, 6 longitudinal reinforcing bars, 7 horizontal hoops, 8 normal concretes.
Embodiment
Basic structure
As depicted in figs. 1 and 2, many pencils ultra-high performance concrete constraint normal concrete T-shaped post of the present invention, comprise T-shaped concrete profiled pile (side column in Framed Structure with Special-Shaped Columns), the cylinder skeleton of T-shaped concrete profiled pile comprises the skin plating being coated on outside Special-Shaped Column and separates the internal partition of internal space, Special-Shaped Column cross section, cylinder skeleton is the prefabricated components shaping by ultra-high performance concrete primary concreting, and forms the skin plating of skeleton and internal partition connects with each other; Internal partition in Special-Shaped Column each post limb height direction according to certain interval vertical and is parallel to post limb width and is arranged in each post limb, and Special-Shaped Column cross section is divided into multiple independent cell cube by skin plating and internal partition, forms the independent separated column of multiple pencil; Two post limb confluences of T-shaped concrete profiled pile arrange corresponding orthogonal internal partition. In each cell cube, place the reinforcement cage skeleton of appropriateness arrangement of reinforcement, and adopt normal concrete to build closely knit by each cell cube.
Similar, as depicted in figs. 1 and 2, many pencils ultra-high performance concrete constraint normal concrete T-shaped shear wall with short piers of the present invention, comprise T-shaped concrete shear wall with short piers, the wall skeleton of T-shaped concrete shear wall with short piers comprises the skin plating being coated on outside shear wall with short piers and separates the internal partition of internal space, shear wall with short piers cross section, wall skeleton is the prefabricated components shaping by ultra-high performance concrete primary concreting, and forms the skin plating of skeleton and internal partition connects with each other; Internal partition in shear wall with short piers each wall limb height direction according to certain interval vertical and is parallel to wall limb width and is arranged in each wall limb, shear wall with short piers cross section is divided into multiple independent cell cube by skin plating and internal partition, forms the independent split wall of multiple pencil; Two wall limb confluences of T-shaped concrete shear wall with short piers arrange corresponding orthogonal internal partition. In each cell cube, place the reinforcement cage skeleton of appropriateness arrangement of reinforcement, and adopt normal concrete to build closely knit by each cell cube.
Principle of design
As shown in Figure 1, in the cylinder skeleton of Special-Shaped Column and the wall skeleton of shear wall with short piers, internal partition one, internal partition two, internal partition three are arranged in outside the confluence of T-shaped cross section two orthogonal post (wall) limb, and each internal partition is mutually through with the skin plating on corresponding limit, it is independently a separated column (wall) by the core area crossed, thus eliminates the disadvantageous effect of the 90 degree of inner corner trims in T-shaped post (wall) cross section; In addition, internal partition one, internal partition four and internal partition two, internal partition three need to be perpendicular to vertical post (wall) limb, the limb height of horizontal columns (wall) limb respectively and be parallel to the limb width of corresponding post (wall) limb. The cylinder of Special-Shaped Column and each internal partition of the wall skeleton of shear wall with short piers are arranged along orthogonal two posts (wall) limb at a certain distance according to the needs of supporting capacity, if structure upper load is bigger, then spacing by each internal partition reduces, corresponding increase internal partition quantity, otherwise, then amplify spacing and reduce quantity; By arranging skin plating in T-shaped post (wall) external body, form the function that outsourcing constraint is inner, and by mutual to internal partition and skin plating through become as a whole skeleton; By T-shaped skeleton being propped up mould and to building ultra-high performance concrete in it, adopts vapor cure aftershaping to be T-shaped ultra-high performance concrete post (wall) body skeleton.This production process should be produced in the prefabricated components factory of high gauge, ensures component quality. As shown in Figure 2, on the basis of Fig. 1 post (wall) body skeleton, as required by configuring corresponding longitudinal reinforcing bar and horizontal hoop, and the rectangle reinforcement cage skeleton become by both colligations is positioned in each pencil separated column (wall), strengthen the supporting capacity of T-shaped post (wall) further; Afterwards, in it, normal concrete is built in space, thus forms many pencils ultra-high performance concrete constraint normal concrete T-shaped post and T-shaped shear wall with short piers.
Production and application
1) first prop up mould in prefabricated components factory and form T-shaped post cylinder as shown in Figure 1 or T-shaped wall wall skeleton, post limb or wall limb confluence in two directions need to arrange a rectangle separated column or wall, split by orthogonal three road internal partitions, according to design need again in each post limb or wall limb according to certain pitch arrangement internal partition, in skin plating and internal partition, build ultra-high performance concrete afterwards and adopt vapor cure shaping;
2) T-shaped ultra-high performance concrete cylinder or wall skeleton are lifted the specific position to the side column position or short-shear wall structure of Framed Structure with Special-Shaped Columns, adopt built-in connection T-shaped post cylinder skeleton or T-shaped wall wall skeleton to be connected with basis or lower floor;
3) according to certain specification colligation rectangle reinforcement cage skeleton, this reinforcement cage skeleton is made up of the horizontal hoop of the longitudinal reinforcing bar and certain stirrup spacing that are distributed in four angle points in square-section;
4) reinforcement cage skeleton is put into respectively each bundle separated column or the split wall of T-shaped post cylinder or T-shaped wall body of wall, and builds normal concrete wherein and get final product.
In sum, many pencils T cross section post of the present invention's application ultra-high performance concrete constraint normal concrete or wall, compared with prior art tool has the following advantages:
1) to after the subregion of T-shaped cross section, each pencil unit can be equivalent to a separated column or wall, and each pencil separated column or wall be by outsourcing with interior every the contact of ultra-high performance concrete thin plate together with, namely connecting in body has split, so just forms a not only independent but also unified section form. Compared to traditional outsourcing confined concrete Special-Shaped Column or shear wall with short piers, T-shaped post after split or wall can effectively overcome the problem that the supporting capacity that 90 degree of inner corner trims bring weakens;
2) in each pencil cross section, multiple measure can be adopted for improving the supporting capacity of T-shaped post or wall, distributing style in it is more flexible, can be reinforcement cage skeleton, type steel skeleton, steel pipe, pvc pipe etc., even only adopts normal concrete or high-strength concrete at each separated column or wall; According to the enhancement method of high-strength concrete, can effectively overcome the brittleness that high-strength concrete has, it is achieved good-good combine;
3) ultra-high performance concrete (UHPC) is the very-high performance Fiber Reinforced Cement Based Composites of a kind of high strength, high-modulus, high ductility, UHPC also has quite high compactness, impervious coefficient is very high, and moisture substantially not easily enters inner normal concrete through UHPC. If replacing normal concrete structure with UHPC, less plate usually can be adopted thick, reducing dead load, thus reducing construction costs. Therefore replacing steel pipe with ultra-high performance concrete, the density that on the one hand ultra-high performance concrete is good is not defeated in steel, and its ultimate compression strength is also much larger than the intensity of steel, therefore can saving steel and reduce cost; The endurance quality reduction because steel corrosion produces and measures for the prevention of fire can be avoided on the other hand to require that the human and material resources required for the later maintenance such as harshness drop into, it is achieved the object put things right once and for all;
4) building industryization can be realized as prefabricated components in factory by the T-shaped post cylinder that ultra-high performance concrete has been built or body of wall to produce, ensure building and maintenance quality of ultra-high performance concrete, accelerating construction progress, be conducive to saving comprehensive cost;
5) ultra-high performance concrete has the tensile strength more superior than normal concrete, ultimate compression strength and endurance quality, supporting capacity and the erosion resistance of T-shaped post or wall can be significantly improved, adopt this type of component also can ensure the performance of its mechanical property in extreme circumstances, have a good application prospect from binding function for realizing concrete.
Claims (9)
1. the constraint of pencil ultra-high performance concrete more than kind normal concrete T-shaped post, comprise T-shaped concrete profiled pile, it is characterized in that: the cylinder skeleton of described T-shaped concrete profiled pile comprises the skin plating being coated on outside Special-Shaped Column and separates the internal partition of internal space, Special-Shaped Column cross section, cylinder skeleton is built shaping by ultra-high performance concrete, and forms the skin plating of skeleton and internal partition connects with each other; Special-Shaped Column cross section is divided into multiple independent cell cube by described skin plating and internal partition, forms the independent separated column of multiple pencil; Two post limb confluences of described T-shaped concrete profiled pile arrange corresponding orthogonal internal partition.
2. many pencils ultra-high performance concrete according to claim 1 constraint normal concrete T-shaped post, it is characterised in that: described internal partition is perpendicular to Special-Shaped Column each post limb height direction and is parallel to post limb width.
3. many pencils ultra-high performance concrete according to claim 1 constraint normal concrete T-shaped post, it is characterised in that place reinforcement cage skeleton in cell cube described in each, and adopt normal concrete to build closely knit by each cell cube.
4. many pencils ultra-high performance concrete according to claim 1 constraint normal concrete T-shaped post, it is characterised in that: described reinforcement cage skeleton is rectangle, becomes by longitudinal reinforcing bar and horizontal hoop colligation.
5. many pencils ultra-high performance concrete according to claim 1 constraint normal concrete T-shaped post, it is characterised in that: described T-shaped concrete profiled pile is the side column in Framed Structure with Special-Shaped Columns.
6. the constraint of pencil ultra-high performance concrete more than kind normal concrete T-shaped shear wall with short piers, comprise T-shaped concrete shear wall with short piers, it is characterized in that: the wall skeleton of described T-shaped concrete shear wall with short piers comprises the skin plating being coated on outside shear wall with short piers and separates the internal partition of internal space, shear wall with short piers cross section, wall skeleton is built shaping by ultra-high performance concrete, and forms the skin plating of skeleton and internal partition connects with each other; Shear wall with short piers cross section is divided into multiple independent cell cube by described skin plating and internal partition, forms the independent split wall of multiple pencil; Two wall limb confluences of described T-shaped concrete shear wall with short piers arrange corresponding orthogonal internal partition.
7. many pencils ultra-high performance concrete according to claim 1 constraint normal concrete T-shaped shear wall with short piers, it is characterised in that: described internal partition is perpendicular to shear wall with short piers each wall limb height direction and is parallel to wall limb width.
8. many pencils ultra-high performance concrete according to claim 1 constraint normal concrete T-shaped shear wall with short piers, it is characterised in that place reinforcement cage skeleton in cell cube described in each, and adopt normal concrete to build closely knit by each cell cube.
9. many pencils ultra-high performance concrete according to claim 1 constraint normal concrete T-shaped shear wall with short piers, it is characterised in that: described reinforcement cage skeleton is rectangle, becomes by longitudinal reinforcing bar and horizontal hoop colligation.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528734A (en) * | 2019-08-28 | 2019-12-03 | 东南大学 | A kind of steel-concrete combination shear wall with short piers |
| CN110528733A (en) * | 2019-08-28 | 2019-12-03 | 东南大学 | A kind of construction method of steel-concrete combination shear wall with short piers |
| CN110607878A (en) * | 2019-10-20 | 2019-12-24 | 河南理工大学 | T-shaped steel pipe recycled concrete special-shaped column with perforated T-shaped ribs and manufacturing method |
| CN112267559A (en) * | 2020-11-20 | 2021-01-26 | 南京工业大学 | Built-in corrugated steel plate reinforced concrete T-shaped prefabricated part and manufacturing process |
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| CN110607878A (en) * | 2019-10-20 | 2019-12-24 | 河南理工大学 | T-shaped steel pipe recycled concrete special-shaped column with perforated T-shaped ribs and manufacturing method |
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