CN205382595U - Integral shear force wall of steel pipe concrete edge constraint coincide - Google Patents
Integral shear force wall of steel pipe concrete edge constraint coincide Download PDFInfo
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- CN205382595U CN205382595U CN201620110203.0U CN201620110203U CN205382595U CN 205382595 U CN205382595 U CN 205382595U CN 201620110203 U CN201620110203 U CN 201620110203U CN 205382595 U CN205382595 U CN 205382595U
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Abstract
The utility model discloses an integral shear force wall of steel pipe concrete edge constraint coincide belongs to concrete shear force wall field. This integral shear force wall of steel pipe concrete edge constraint coincide include two relative settings the precast concrete panel, be located two rectangle steel pipes of precast concrete panel both sides and be located at least one the drawknot spare between the precast concrete panel, wherein: precast concrete panel and rectangle steel pipe surround, the intermediate formation cavity, and the both ends of drawknot spare are pre -buried in the precast concrete panel respectively, being equipped with horizontal reinforcement and vertical reinforcement in the precast concrete panel is in the same place with rectangle pipe welding respectively in the both ends of horizontal reinforcement, on -the -spot concreting when the hollow portion of cavity and rectangle steel pipe is used for being under construction. The panel heater is convenient for installation. Rectangle steel pipe and precast concrete panel are connected reliably, and the wholeness is good, horizontal limit bearing capacity and ductility are good, and anti -seismic performance is superior, the difficult fracture of the old and new's concrete coincide face.
Description
Technical field
This utility model relates to concrete shear force wall field, particularly relates to a kind of concrete filled steel tube edge constraint overlapping monoblock type shear wall.
Background technology
Load bearing wall in building is arranged in correct position, it is possible to effectively resisting the horizontal loading caused by wind and earthquake, and undertake the most of horizontal shear caused by horizontal loading, therefore these bodies of wall are thus referred to as shear wall.At present, concrete shear force wall is broadly divided into cast-in-place concrete shear wall, full precast concrete shear wall (i.e. prefabrication, assembled in situ) and a half precast concrete overlapped shear wall (i.e. prefabrication part, a cast in situs part), this utility model relates to half precast concrete overlapped shear wall.
The both sides armored concrete panel of half precast concrete overlapped shear wall is prefabrication, it is cavity in the middle of panel, transporting and hoisting to building-site in cavity casting concrete form entirety, this shear wall vertically connects equivalent cast-in-place, globality and shock resistance are better, and economizing template, situ wet operation is few.But its stress performance is had considerable influence by the superposed surfaces Mechanics Performance of Adherence of New performance of half precast concrete overlapped shear wall, if the roughness of superposed surfaces is inadequate, then very easily occur overlapping cracking so that the bearing capacity of overlapped shear wall significantly reduces.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of concrete filled steel tube edge constraint overlapping monoblock type shear wall, and this utility model is easy for installation；Rectangular steel pipe and precast concrete facade panel connect reliable, good integrity；Ultimate lateral bearing capacity and ductility are good, and anti-seismic performance is superior；New-old concrete superposed surfaces is not easy to crack.
For solving above-mentioned technical problem, this utility model provides technical scheme as follows:
This utility model provides a kind of concrete filled steel tube edge constraint overlapping monoblock type shear wall, including two pieces of precast concrete facade panels being oppositely arranged, at two rectangular steel pipes of described precast concrete facade panel both sides and at least one tension member between described precast concrete facade panel, wherein:
Described precast concrete facade panel and rectangular steel pipe surround, intermediate formation cavity, and the two ends of described tension member are embedded in described precast concrete facade panel respectively；
Being provided with horizontal reinforcement and vertical reinforcement in described precast concrete facade panel, the two ends of described horizontal reinforcement weld together with described rectangular steel pipe respectively；
The poured in place concrete when hollow space of described cavity and described rectangular steel pipe is used for constructing.
Further, described tension member is Z-shape steel strip, C-type steel strip or H profile steel strip, two edges of a wing of described Z-shape steel strip, C-type steel strip or H profile steel strip are embedded in described precast concrete facade panel respectively, having hole on the web of described Z-shape steel strip, C-type steel strip or H profile steel strip, described hole is circular hole, slotted hole, square hole and/or diamond hole.
Further, the thickness of described Z-shape steel strip, C-type steel strip or H profile steel strip is 0.5-3mm, and the thickness that two edges of a wing of described Z-shape steel strip, C-type steel strip or H profile steel strip are embedded in described precast concrete facade panel is not less than 20mm.
Further, described rectangular steel pipe is provided with shear stud on the surface of described cavity side.
Further, described vertical reinforcement stretches out the upper surface of described precast concrete facade panel, and outreach should meet the lap of splice required by described vertical reinforcement.
Further, described vertical reinforcement stretches out the distance of the upper surface of described precast concrete facade panel and is not less than the summation of the lap of splice required by 1.2 times of described vertical reinforcements and slab thickness.
Further, the thickness of described precast concrete facade panel is no less than 50mm, and the material of described rectangular steel pipe is Q235B and ratings above steel, and concrete grade when concrete in described precast concrete facade panel and site operation is C30 and ratings above.
This utility model has the advantages that
Concrete filled steel tube edge constraint of the present utility model overlapping monoblock type shear wall is easy for installation.When mounted, lifted to specifying position, then in cavity and the hollow space casting concrete of rectangular steel pipe, water the concrete of build floor simultaneously, complete the installation of this layer of concrete filled steel tube edge constraint overlapping monoblock type shear wall.When installing next layer of concrete filled steel tube edge constraint overlapping monoblock type shear wall, new concrete filled steel tube edge constraint is overlapped the lifting of monoblock type shear wall above the floor built, and upper and lower two-layer concrete filled steel tube edge constraint is overlapped the connection of monoblock type shear wall, the cavity of the most backward new concrete filled steel tube edge constraint overlapping monoblock type shear wall and the hollow space casting concrete of rectangular steel pipe.
Horizontal reinforcement in concrete filled steel tube edge constraint of the present utility model overlapping monoblock type shear wall is directly welded into entirety with rectangular steel pipe so that rectangular steel pipe and precast concrete facade panel connect reliable, good integrity.
Concrete filled steel tube edge constraint of the present utility model overlapping monoblock type shear wall adopts rectangular steel pipe+concrete to carry out edge constraint, the ductility of steel is applied to well in xoncrete structure, can be greatly improved ultimate lateral bearing capacity and ductility, and anti-seismic performance is superior.
Concrete filled steel tube edge constraint of the present utility model overlapping monoblock type shear wall adopts the prefabricated reinforced concrete panel of tension member drawknot both sides, under the effect of shearing, concrete filled steel tube edge constraint overlaps monoblock type shear wall entirety stress, and tension member can stop New-old concrete superposed surfaces cracking occur.
In sum, concrete filled steel tube edge constraint of the present utility model overlapping monoblock type shear wall is easy for installation；Rectangular steel pipe and precast concrete facade panel connect reliable, good integrity；Ultimate lateral bearing capacity and ductility are good, and anti-seismic performance is superior；New-old concrete superposed surfaces is not easy to crack.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of an embodiment of concrete filled steel tube edge constraint of the present utility model overlapping monoblock type shear wall；
Fig. 2 is three kinds of concrete structure schematic diagrams of the tension member in this utility model；
Fig. 3 is the main body figure of an embodiment of concrete filled steel tube edge constraint of the present utility model overlapping monoblock type shear wall；
Fig. 4 is the left body figure of an embodiment of concrete filled steel tube edge constraint of the present utility model overlapping monoblock type shear wall；
Fig. 5 is that the A-A of Fig. 3 is to sectional view；
Fig. 6 is the schematic diagram of an embodiment of the preparation method of concrete filled steel tube edge constraint of the present utility model overlapping monoblock type shear wall；
Fig. 7 is that the B-B of Fig. 6 is to sectional view；
Fig. 8 is that the C-C of Fig. 6 is to sectional view；
Fig. 9 is a step schematic diagram of another embodiment of the preparation method of concrete filled steel tube edge constraint of the present utility model overlapping monoblock type shear wall；
Figure 10 is another step schematic diagram of another embodiment of the preparation method of concrete filled steel tube edge constraint of the present utility model overlapping monoblock type shear wall；
Figure 11 is that the D-D of Fig. 9 is to sectional view；
Figure 12 is that the E-E of Figure 10 is to sectional view；
Figure 13 is an embodiment front view of the installation method of concrete filled steel tube edge constraint of the present utility model overlapping monoblock type shear wall；
Figure 14 is an embodiment left view of the installation method of concrete filled steel tube edge constraint of the present utility model overlapping monoblock type shear wall.
Detailed description of the invention
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, it is described in detail below in conjunction with the accompanying drawings and the specific embodiments.
On the one hand, this utility model provides a kind of concrete filled steel tube edge constraint overlapping monoblock type shear wall, as shown in Figures 1 to 5, including two pieces of precast concrete facade panels being oppositely arranged 1, it is positioned at two rectangular steel pipes 2 (certainly also including rectangular steel tube) of precast concrete facade panel 1 both sides and at least one tension member 3 between precast concrete facade panel 1, wherein:
Precast concrete facade panel 1 and rectangular steel pipe is 2-in-1 encloses, intermediate formation cavity 4, the two ends of tension member 3 are embedded in precast concrete facade panel 1 respectively；
Being provided with horizontal reinforcement (for illustrating in figure) and vertical reinforcement 5 in precast concrete facade panel 1, the two ends of horizontal reinforcement weld together with rectangular steel pipe 2 respectively；
The poured in place concrete when hollow space of cavity 4 and rectangular steel pipe 2 is used for constructing.
This utility model embodiment has the advantages that
The concrete filled steel tube edge constraint overlapping monoblock type shear wall of this utility model embodiment is easy for installation.When mounted, lifted to specifying position, then in cavity and the hollow space casting concrete of rectangular steel pipe, water the concrete of build floor simultaneously, complete the installation of this layer of concrete filled steel tube edge constraint overlapping monoblock type shear wall.When installing next layer of concrete filled steel tube edge constraint overlapping monoblock type shear wall, new concrete filled steel tube edge constraint is overlapped the lifting of monoblock type shear wall above the floor built, and upper and lower two-layer concrete filled steel tube edge constraint is overlapped the connection of monoblock type shear wall, the cavity of the most backward new concrete filled steel tube edge constraint overlapping monoblock type shear wall and the hollow space casting concrete of rectangular steel pipe.
Horizontal reinforcement in the concrete filled steel tube edge constraint overlapping monoblock type shear wall of this utility model embodiment is directly welded into entirety with rectangular steel pipe so that rectangular steel pipe and precast concrete facade panel connect reliable, good integrity.
The concrete filled steel tube edge constraint overlapping monoblock type shear wall of this utility model embodiment adopts rectangular steel pipe+concrete to carry out edge constraint, the ductility of steel is applied in xoncrete structure well, being greatly improved ultimate lateral bearing capacity and ductility, anti-seismic performance is superior.
The concrete filled steel tube edge constraint overlapping monoblock type shear wall of this utility model embodiment adopts the prefabricated reinforced concrete panel of tension member drawknot both sides, under the effect of shearing, concrete filled steel tube edge constraint overlaps monoblock type shear wall entirety stress, and tension member can stop New-old concrete superposed surfaces cracking occur.
In sum, the concrete filled steel tube edge constraint overlapping monoblock type shear wall of this utility model embodiment is easy for installation；Rectangular steel pipe and precast concrete facade panel connect reliable, good integrity；Ultimate lateral bearing capacity and ductility are good, and anti-seismic performance is superior；New-old concrete superposed surfaces is not easy to crack.
In embodiment of the present utility model, tension member can have various structures, for instance tension member 3 can be Z-shape steel strip, in Fig. 2 shown in (a)；Can also be C-type steel strip, in Fig. 2 shown in (b)；Can also be H profile steel strip, in Fig. 2 shown in (c)；Two edges of a wing 31 of Z-shape steel strip, C-type steel strip or H profile steel strip are embedded in precast concrete facade panel 1 respectively, having hole 33 on the web 32 of Z-shape steel strip, C-type steel strip or H profile steel strip, hole 33 is circular hole, slotted hole, square hole and/or diamond hole.Hole can make the concrete of web both sides connect, and forms dowel action, increases the concrete globality in web both sides.
Preferably, so that tension member has certain structural strength, the thickness of Z-shape steel strip, C-type steel strip or H profile steel strip is 0.5-3mm, and, ensureing that tension member will not come off open with precast concrete facade panel under the effect resisting pulling force stubbornly, the thickness that two edges of a wing of Z-shape steel strip, C-type steel strip or H profile steel strip are embedded in precast concrete facade panel is not less than 20mm.
As a kind of improvement of this utility model embodiment, rectangular steel pipe is provided with shear stud 6 on the surface of cavity side, it is preferable that be connected with rectangular steel pipe by shear stud by the mode welded.Making the concrete in cavity connect into entirety with rectangular steel pipe by shear stud, connect more reliable, globality is better.
When construction, typically require and upper and lower two-layer concrete filled steel tube edge constraint is overlapped monoblock type shear wall link, connected mode can have multiple, here providing an embodiment: vertical reinforcement 5 stretches out the upper surface of precast concrete facade panel 1, outreach should meet the lap of splice required by vertical reinforcement.
When construction, the vertical reinforcement that lower floor's concrete filled steel tube edge constraint overlaps monoblock type shear wall is bent inwards, then upper strata concrete filled steel tube edge constraint overlaps monoblock type shear wall be lifted into lower floor's concrete filled steel tube edge constraint and overlap above monoblock type shear wall, and make the vertical reinforcement of lower floor's concrete filled steel tube edge constraint overlapping monoblock type shear wall stretch in the cavity of upper strata concrete filled steel tube edge constraint overlapping monoblock type shear wall, the cavity of monoblock type shear wall and the hollow space casting concrete of rectangular steel pipe is overlapped to upper strata concrete filled steel tube edge constraint, upper and lower two-layer concrete filled steel tube edge constraint can be overlapped monoblock type shear wall and link together by vertical reinforcement.Save spheroidal graphite grout sleeve or the slurry anchor of bar connecting.
The lap of splice of reinforcing bar generally refers to the lap of splice that reinforcing bar binding connects, and the lap of splice of the reinforcing bar of different model has different regulations.
Further, so that up and down two-layer concrete filled steel tube edge constraint overlapping monoblock type shear wall connects more firm, vertical reinforcement 5 stretches out the distance of the upper surface of precast concrete facade panel 1 and is not less than the summation of the lap of splice required by 1.2 times of vertical reinforcements and slab thickness.Because build floor generally can be watered in the middle of two-layer concrete filled steel tube edge constraint overlapping monoblock type shear wall up and down, it is therefore desirable to reserve slab thickness.
In order to make the intensity of concrete filled steel tube edge constraint overlapping monoblock type shear wall meet the requirements, the thickness of precast concrete facade panel is no less than 50mm, the material of rectangular steel pipe is Q235B and ratings above steel, and concrete grade when concrete in precast concrete facade panel and site operation is C30 and ratings above.
On the other hand, the preparation method that this utility model provides a kind of above-mentioned concrete filled steel tube edge constraint overlapping monoblock type shear wall, as described in Fig. 6 to Fig. 8, one of them embodiment comprises the steps:
Step 1: two rectangular steel pipes 2 are pressed design size and erects fixing；When rectangular steel pipe 2 is welded with shear stud 6, two faces being welded with shear stud 6 are oppositely arranged.
Step 2: the vertical reinforcement 5 of two pieces of precast concrete facade panels and horizontal reinforcement colligation are fixed, and the two ends of horizontal reinforcement are welded on two rectangular steel pipes 2.
Step 3: erect tension member 3 at middle frame；And making the two ends of tension member can be embedded in certain depth in precast concrete facade panel after casting concrete, it is preferred that the vertical reinforcement of tension member and two pieces of precast concrete facade panels or horizontal reinforcement connect fixing.
Step 4: placing implant template 7 (such as styrofoam etc.) inside centre and fix, implant template is placed on cavity place；At two arranged outside support templates 8 (such as steel or bamboo plank sheathing etc.) and fix, support template is used for preventing concrete spillage, and makes concrete forming.
Step 5: casting concrete, and by concrete curing to strength of mould stripping, prepare two pieces of precast concrete facade panels 1.
Step 6: detach the implant template 7 of centre, removes the support template 8 outside two, prepares concrete filled steel tube edge constraint overlapping monoblock type shear wall.
The preparation method of this utility model embodiment is simple and convenient, only need to build once namely plastic, and preparation time is short, and efficiency is high.
Another further aspect, this utility model provides the another kind of preparation method of a kind of above-mentioned concrete filled steel tube edge constraint overlapping monoblock type shear wall, and as shown in Fig. 9 to Figure 12, one of them embodiment comprises the steps:
Step 1: two rectangular steel pipes 2 are lain low fixing by design size；When rectangular steel pipe 2 is welded with shear stud 6, two faces being welded with shear stud 6 are oppositely arranged.
Step 2: the vertical reinforcement 5 of the precast concrete facade panel of downside and horizontal reinforcement 9 colligation are fixed, and the two ends of horizontal reinforcement is welded on two rectangular steel pipes 2；Although in this step, all reinforcing bars are all levels, but in order to call conveniently and in order to context is unified and readily appreciates, still be called vertical reinforcement and horizontal reinforcement.
Step 3: erect tension member 3 at middle frame；And making the two ends of tension member can be embedded in certain depth in precast concrete facade panel after casting concrete, it is preferred that tension member is connected fixing with the vertical reinforcement of downside precast concrete facade panel or horizontal reinforcement.
Step 4: arranging support template 8 (such as steel or bamboo plank sheathing etc.) at precast concrete facade panel two ends and fix, support template is used for preventing concrete spillage, and makes concrete forming.In this step, precast concrete facade panel, but without preparing, simply limits the position of support template referred herein to precast concrete facade panel two ends with precast concrete facade panel.
Step 5: casting concrete, and by concrete curing to final set, prepare the precast concrete facade panel 1 of downside.
Step 6: implant template 7 (such as styrofoam etc.) is placed above at prepared downside precast concrete facade panel.
Step 7: the vertical reinforcement of the precast concrete facade panel of upside and horizontal reinforcement colligation are fixed, and the two ends of horizontal reinforcement are welded on two rectangular steel pipes 2, preferably, the tension member vertical reinforcement with the precast concrete facade panel of upside or horizontal reinforcement are connected fixing.
Step 8: casting concrete, and by concrete curing to strength of mould stripping, prepare the precast concrete facade panel (not shown) of upside.
Step 9: remove the support template 8 at precast concrete facade panel two ends, detaches the implant template 7 of centre, prepares concrete filled steel tube edge constraint overlapping monoblock type shear wall.
This utility model embodiment is owing to being horizontal positioned so that casting concrete is more convenient.
Another further aspect, this utility model provides the installation method of a kind of above-mentioned concrete filled steel tube edge constraint overlapping monoblock type shear wall, as shown in Figure 13 and Figure 14 (in figure, the direction of arrow is the direction of casting concrete), one of them embodiment comprises the steps to include:
Step 1: lower floor's concrete filled steel tube edge constraint is overlapped the vertical reinforcement of monoblock type shear wall and stretches out the part of upper surface and bend inwards to appropriate location, can stretch in the cavity of upper strata concrete filled steel tube edge constraint overlapping monoblock type shear wall, and preferably make its distance upper strata concrete filled steel tube edge constraint overlap the cavity inner surface of monoblock type shear wall no less than 10mm.With the hollow space casting concrete of rectangular steel pipe in the cavity of lower floor's concrete filled steel tube edge constraint overlapping monoblock type shear wall, and water build floor.
Step 2: upper strata concrete filled steel tube edge constraint is overlapped monoblock type shear wall and is placed on floor, and make the part that the vertical reinforcement of lower floor's concrete filled steel tube edge constraint overlapping monoblock type shear wall stretches out upper surface put in the cavity of upper strata concrete filled steel tube edge constraint overlapping monoblock type shear wall.
Step 3: use support 10 (easy falsework) fixing upper strata concrete filled steel tube edge constraint overlapping monoblock type shear wall.
Step 4: overlap to upper strata concrete filled steel tube edge constraint in the cavity of monoblock type shear wall and the hollow space casting concrete of rectangular steel pipe, make downward two-layer be integrally formed.
This utility model embodiment only needs to use a small amount of simple rack, it is not necessary to scene installs template, and efficiency of construction is high, low in the pollution of the environment.
The above is preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from principle described in the utility model; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (7)
1. a concrete filled steel tube edge constraint overlapping monoblock type shear wall, it is characterized in that, including two pieces of precast concrete facade panels being oppositely arranged, at two rectangular steel pipes of described precast concrete facade panel both sides and at least one tension member between described precast concrete facade panel, wherein:
Described precast concrete facade panel and rectangular steel pipe surround, intermediate formation cavity, and the two ends of described tension member are embedded in described precast concrete facade panel respectively；
Being provided with horizontal reinforcement and vertical reinforcement in described precast concrete facade panel, the two ends of described horizontal reinforcement weld together with described rectangular steel pipe respectively；
The poured in place concrete when hollow space of described cavity and described rectangular steel pipe is used for constructing.
2. concrete filled steel tube edge constraint according to claim 1 overlapping monoblock type shear wall, it is characterized in that, described tension member is Z-shape steel strip, C-type steel strip or H profile steel strip, two edges of a wing of described Z-shape steel strip, C-type steel strip or H profile steel strip are embedded in described precast concrete facade panel respectively, having hole on the web of described Z-shape steel strip, C-type steel strip or H profile steel strip, described hole is circular hole, slotted hole, square hole and/or diamond hole.
3. concrete filled steel tube edge constraint according to claim 2 overlapping monoblock type shear wall, it is characterized in that, the thickness of described Z-shape steel strip, C-type steel strip or H profile steel strip is 0.5-3mm, and the thickness that two edges of a wing of described Z-shape steel strip, C-type steel strip or H profile steel strip are embedded in described precast concrete facade panel is not less than 20mm.
4. concrete filled steel tube edge constraint according to claim 1 overlapping monoblock type shear wall, it is characterised in that described rectangular steel pipe is provided with shear stud on the surface of described cavity side.
5. according to the arbitrary described concrete filled steel tube edge constraint overlapping monoblock type shear wall of claim 1-4, it is characterised in that described vertical reinforcement stretches out the upper surface of described precast concrete facade panel, and outreach should meet the lap of splice required by described vertical reinforcement.
6. concrete filled steel tube edge constraint according to claim 5 overlapping monoblock type shear wall, it is characterized in that, described vertical reinforcement stretches out the distance of the upper surface of described precast concrete facade panel and is not less than the summation of the lap of splice required by 1.2 times of described vertical reinforcements and slab thickness.
7. concrete filled steel tube edge constraint according to claim 5 overlapping monoblock type shear wall, it is characterized in that, the thickness of described precast concrete facade panel is no less than 50mm, the material of described rectangular steel pipe is Q235B and ratings above steel, and concrete grade when concrete in described precast concrete facade panel and site operation is C30 and ratings above.
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| CN201620110203.0U CN205382595U (en) | 2016-02-03 | 2016-02-03 | Integral shear force wall of steel pipe concrete edge constraint coincide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569224A (en) * | 2016-02-03 | 2016-05-11 | 山东大学 | Concrete-filled steel tube edge restraint overlapping integrated shear wall and preparing and installation methods thereof |
| CN108457399A (en) * | 2018-01-24 | 2018-08-28 | 天津大学 | A kind of steel plate concrete shear wall vertically splices node installation method |
-
2016
- 2016-02-03 CN CN201620110203.0U patent/CN205382595U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569224A (en) * | 2016-02-03 | 2016-05-11 | 山东大学 | Concrete-filled steel tube edge restraint overlapping integrated shear wall and preparing and installation methods thereof |
| CN105569224B (en) * | 2016-02-03 | 2017-11-24 | 山东大学 | Concrete filled steel tube edge constraint overlaps monoblock type shear wall and preparation and installation method |
| CN108457399A (en) * | 2018-01-24 | 2018-08-28 | 天津大学 | A kind of steel plate concrete shear wall vertically splices node installation method |
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