Based on mat surface connect assembled polypropylene fibre sludge ceramsite concrete wall and
Its construction method
Technical field
The invention belongs to technical field of buildings, more particularly to a kind of assembled polypropylene fibre dirt connected based on mat surface
Mud Ceramsite Concrete Wall and its construction method.
Background technology
Prefabricated concrete structure meets the resources conservation proposed in China " 12 " planning, environment-friendly society will
Ask, be to realize one of effective way of building energy conservation emission reduction and housing industrialization.In recent years, policy of the country to assembled-type house
It is oriented to and preferential policy is put into effect successively, assembled integral shear wall structure is because of its preferable globality, rigidity is big, bearing capacity is high etc.
Advantage is used widely in high residential building structure.At present, the development of assembled wall faces problems, one side wall
Material used is conventional concrete material so that the energy of China and raw materials consumption are excessive, therefore finds eco-concrete
The problem of materials for wall turns into present urgent need to resolve.On the other hand the connected mode of traditional fabricated shear wall structure need into
One step is improved, and that connected mode now is high to element precast required precision, to install device to hole time-consuming is longer, so as to being delayed work significantly
Phase, engineering cost is added, therefore, the connecting structure used in traditional fabricated shear wall need to be improved, propose a kind of knot
Structure is simple, reasonable in design, easy construction and input cost is relatively low, using effect is good assembled wall connecting construction.Finally, pass
System assembled shear wall structure globality poor, structural system lacks multi-way prevention earth-quake resistant mechanism, and single Pin shear walls destroy to cut
Cut based on fragility, it is difficult to meet the Ductility Design requirement of structure, therefore traditional fabricated shear wall form of reinforcement need to be carried out excellent
Change innovation, proposes that a kind of ductility is good, crack of consuming energy is uniform and the excellent assembled wall of cast-in-place vertical edges component synergism service behaviour
Body form of reinforcement.
The content of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of dress connected based on mat surface
With formula polypropylene fibre sludge ceramsite concrete wall and its construction method, pass through material, connected mode, the wound of form of reinforcement
Newly, make the wall body structure have compared with traditional assembled wall energy-dissipating and shock-absorbing, ecological, environmental protective, it is quick build, it is economical and practical
Advantage.
To achieve these goals, the technical solution adopted by the present invention is:
The assembled polypropylene fibre sludge ceramsite concrete wall connected based on mat surface, including:
Prefabricated panel 1, its left and right side is mat surface 13, built-in horizontal reinforcement 11 and vertical reinforcement 12;
Cast-in-place connecting pole 8, is connected with prefabricated panel 1 by the mat surface 13, built-in vertical muscle, the vertical muscle and horizontal steel
Muscle 11 is nested, and in junction, reliable anchoring is realized in spot welding one by one, forms the attachment structure of horizontal direction;
Cast-in-place vertical edges component 2, is connected, built-in vertical muscle with the outside of edge prefabricated panel 1 by the mat surface 13,
The vertical muscle is nested with horizontal reinforcement 11, and in junction, reliable anchoring is realized in spot welding one by one, forms the connection knot of horizontal direction
Structure;
Sleeve 3 with tongue and groove, is arranged in prefabricated panel 1, and the upper end insertion top of the vertical reinforcement 12 is prefabricated
In the sleeve 3 of wallboard 1, realized after injection grouting material hardening vertical reinforcement 12 and sleeve 3 be reliably connected and to pour polypropylene fine
Sludge ceramsite concrete is tieed up, the attachment structure of vertical direction is formed;
Wherein, the prefabricated panel 1 is made up of polypropylene fibre sludge ceramsite concrete, the polypropylene fibre sludge pottery
Grain concrete proportioning be:
Contain in per cubic meter of concrete:Polypropylene fibre 0.6kg~1.2kg, sludge ceramsite 516kg, cement 400kg,
Water 180kg and sand 819kg.
The horizontal reinforcement 11 and vertical reinforcement 12 are double muscle shapes on the left and right directions and fore-and-aft direction of prefabricated panel 1
Formula, i.e. four horizontal reinforcements 11 and four vertical reinforcements 12 constitute have in a units, a prefabricated panel 1 multiple units by
Order interconnection.
Present invention also offers the assembled polypropylene fibre sludge ceramsite concrete wall connected based on mat surface
Construction method, comprise the following steps:
Step one:Prepare polypropylene fibre sludge ceramsite concrete
First mixing polypropylene fibre and sludge ceramsite causes polypropylene fibre to be dispersed in sludge ceramsite;Again will
Obtained mixture and sand and cement mixing, first do stirring and add water stirring;Mixing time is consistent with normal concrete, obtains
Polypropylene fibre sludge ceramsite concrete;
Step 2:Prepare prefabricated panel 1
Mat surface steel form, assembling reinforcement mesh sheet are assembled first, and sleeve 3 is embedded to the lower end of prefabricated panel 1 in advance;Then
With gained polypropylene fibre sludge ceramsite concreting, prefabricated panel 1 is preliminarily formed;1~2d of last standard curing, removes steel
Template, forms the concrete panel that level connection joint mode is mat surface, and the end of wherein horizontal reinforcement 11 and vertical reinforcement 12 is equal
It is exposed;
Step 3:Assembled wall one-piece casting
Vertically connection procedure is:
Several prefabricated panels 1 are put up and down, and the exposed parts of the upper end of vertical reinforcement 12 of bottom prefabricated panel 1 are inserted
In the pre-buried sleeve 3 of top prefabricated panel 1, then adjust each prefabricated panel 1 and position, be in the milk, arranged by the side wall of sleeve 3
Vertical reinforcement 12 is reliably connected after slurry;
Level connection joint process is:
Level puts one cast-in-place connecting pole 8 of setting, cast-in-place connection between several prefabricated panels 1, contiguous prefabricated wallboard 1
Mat surface of the post 8 respectively with its both sides prefabricated panel 1 is fitted, and the outside of prefabricated panel 1 at most edge sets cast-in-place vertical edges structure
Part 2, the medial surface of cast-in-place vertical edges component 2 is fitted with the lateral surface of prefabricated panel 1 at most edge, by the exposed of horizontal reinforcement 11
Part is nested with the vertical muscle of cast-in-place connecting pole 8 and cast-in-place vertical edges component 2, and reliable anchor is realized in spot welding one by one in junction
Gu;
Wherein, the horizontal reinforcement 11 in the prefabricated panel 1 of the top is also nested with the vertical muscle of constraint concealed beam, and in junction one
One spot welding;
The template support of edge member 2 is finally carried out, and pours polypropylene fibre sludge ceramsite concrete, assembled is formed
Wall.
In the step 3, the intensity of prefabricated panel 1 reaches can be constructed during more than the 75% of design load.
Compared with prior art, the beneficial effects of the invention are as follows:
1st, assembled wall of the present invention uses eco-concrete material, can effectively alleviate the consumption of raw material, while
Solve a part of urban waste recycles problem.
2nd, assembled wall of the present invention is compared with traditional connected mode, with good integrity, the good advantage of anti-seismic performance,
And, the installation device to hole high to element precast required precision that can effectively solve traditional fabricated shear wall connected mode presence take
The problems such as longer, alignment error control requires high.
3rd, assembled wall body node quick construction of the present invention, connection be reliable, structural integrity is good.Its " well " font arrangement of reinforcement by
Power performance is good, energy-dissipating and shock-absorbing, Ductility Design are excellent, material application is reasonable.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is that sleeve of the present invention sets schematic diagram.
Fig. 3 is precast wall body structural representation of the present invention.
Fig. 4 is the size and reinforcement structure schematic diagram of prefabricated panel of the present invention.
Fig. 5 is the dimensional drawing of wall of the present invention.
Embodiment
Describe embodiments of the present invention in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2 and Figure 3, the assembled polypropylene fibre sludge ceramsite coagulation that the present invention is connected based on mat surface
Cob wall body, including:
Prefabricated panel 1, its left and right side is mat surface 13, built-in horizontal reinforcement 11 and vertical reinforcement 12;Horizontal reinforcement
11 and vertical reinforcement 12 be double muscle form on the left and right directions and fore-and-aft direction of prefabricated panel 1, be optimized for " well " font, such as
Shown in Fig. 2 and Fig. 3, have wherein four horizontal reinforcements 11 and four vertical reinforcements 12 are constituted in a unit, a prefabricated panel 1
Uniform crossover is distributed multiple units in order.
As shown in figure 4, a kind of preferable dimensional parameters of prefabricated panel 1 are as follows:Wallboard thickness is 100mm, and wall-plate level is
1330mm, panel width is 950mm, is provided with the concrete cover that thickness is 10mm, the reinforcing bar anchor of vertical reinforcement 12
Gu length is 190mm, the anchorage length of steel bar of horizontal reinforcement 11 is 215mm, the most external reinforcing bar of vertical reinforcement 12 to concrete
Outward flange spacing is 60mm.
Cast-in-place connecting pole 8, is connected with prefabricated panel 1 by the mat surface 13, built-in vertical muscle, the vertical muscle and horizontal steel
Muscle 11 is nested, and in junction, reliable anchoring is realized in spot welding one by one, forms the attachment structure of horizontal direction;
Cast-in-place vertical edges component 2, is connected, built-in vertical muscle with the outside of edge prefabricated panel 1 by the mat surface 13,
The vertical muscle is nested with horizontal reinforcement 11, and in junction, reliable anchoring is realized in spot welding one by one, forms the connection knot of horizontal direction
Structure;
Sleeve 3 with tongue and groove, as shown in Fig. 2 in the upper end insertion sleeve 3 of vertical reinforcement 12, passing through the note of grout hole 6
Enter after grouting material 7 is hardened and realize being reliably connected and pouring polypropylene fibre sludge ceramsite concrete for vertical reinforcement 12 and sleeve 3,
Form the attachment structure of vertical direction.
Cast-in-place constraint concealed beam 4 and cast-in-situ floor or superposed floor 5 are set in the top of prefabricated panel 1, and cast-in-place constraint is dark
Horizontal bar is set in beam 4 and cast-in-situ floor or superposed floor 5, it is nested with the vertical reinforcement in prefabricated panel 1 and in junction one
Reliable anchoring is realized in one spot welding.
Wherein, prefabricated panel 1 is made up of polypropylene fibre sludge ceramsite concrete, polypropylene fibre sludge ceramsite concrete
It is a kind of ecomaterial, the features such as it has good lightweight, insulation, fire resistance, good corrosion resistance, good anti-seismic performance.It is matched
For:
Contain in per cubic meter of concrete:Polypropylene fibre 0.6kg~1.2kg, sludge ceramsite 516kg, cement 400kg,
Water 180kg and sand 819kg.Sludge ceramsite used is taken from urban sewer sludge, and clay is substituted using these sludge, through digging
Mud, natural drying, raw material balling-up, preheating, roasting, cooling are made.
Present invention also offers applying for the assembled polypropylene fibre sludge ceramsite concrete wall connected based on mat surface
Work method, comprises the following steps:
Step one:Polypropylene fibre sludge ceramsite concrete is prepared, is comprised the following steps:
Step 1, sludge ceramsite is prepared, it is specific as follows:
Step 1.1, obtain primary sludge and dehydration and drying is carried out to it, primary sludge can be dirty from municipal sewage system
Mud;
Step 1.2, grinding homogenizing is carried out to the sludge after dehydration and drying;
Step 1.3, the sludge after being homogenized to grinding carries out extruding balling-up and sends into Expanded Clay Rotary Kilns firing, and process conditions are
400 DEG C first preheating 20min are then heated to 1000 DEG C of last natural coolings in atmosphere of sintering 20min;
Step 1.4, by the haydite baked cooling and gradation sizing, 5~20mm of particle diameter haydite is taken as raw material.
Step 2, polypropylene fibre and sludge ceramsite are mixed according to aforementioned ratio causes polypropylene fibre to be dispersed in
In sludge ceramsite, in order that polypropylene fibre can be evenly distributed in concrete, first polypropylene fibre is rubbed and dissipated separately, then
Polypropylene fibre and sludge ceramsite input mixer are mixed 30 seconds;
Step 3, sand and cement are mixed with the mixture that step 2 is obtained, first does stirring 30 seconds, then in the stirring being rotating
Add water, and be stirred for 3 minutes or so in machine;
Step 4, the polypropylene fibre sludge ceramsite being stirred is put into die for molding;
Step 5, the polypropylene fibre sludge ceramsite concrete of shaping is put into standard curing room to be conserved, its maintenance side
Method, time are consistent with normal concrete.
Wherein, seawater, sea sand must not be used, and forbids to fill villaumite.Because sludge ceramsite belongs to lightweight aggregate, configuration when
Wait and use the relatively low ratio of mud as far as possible, as far as possible less than 0.5.In addition to above-mentioned regulation, polypropylene fibre sludge concrete it is used other
Material, should meet regulation raw materials used on armored concrete in current specifications.
Step 2:Prepare prefabricated panel 1
Mat surface steel form, assembling reinforcement mesh sheet are assembled first, and sleeve 3 is embedded to the lower end of prefabricated panel 1 in advance;Then
With gained polypropylene fibre sludge ceramsite concreting, prefabricated panel 1 is preliminarily formed;1~2d of last standard curing, removes steel
Template, forms the concrete panel that level connection joint mode is mat surface, and the end of wherein horizontal reinforcement 11 and vertical reinforcement 12 is equal
It is exposed;
Step 3:When the intensity of prefabricated panel 1 reaches more than the 75% of design load, carry out assembled wall connection with it is whole
Body is poured
Vertically connection procedure is:
Several prefabricated panels 1 are put up and down, and the exposed parts of the upper end of vertical reinforcement 12 of bottom prefabricated panel 1 are inserted
In the pre-buried sleeve 3 of top prefabricated panel 1, then adjust each prefabricated panel 1 and position, be in the milk, arranged by the side wall of sleeve 3
Vertical reinforcement 12 is reliably connected after slurry;
Level connection joint process is:
Level puts one cast-in-place connecting pole 8 of setting, cast-in-place connection between several prefabricated panels 1, contiguous prefabricated wallboard 1
Mat surface of the post 8 respectively with its both sides prefabricated panel 1 is fitted, and the outside of prefabricated panel 1 at most edge sets cast-in-place vertical edges structure
Part 2, the medial surface of cast-in-place vertical edges component 2 is fitted with the lateral surface of prefabricated panel 1 at most edge, by the exposed of horizontal reinforcement 11
Part is nested with the vertical muscle of cast-in-place connecting pole 8 and cast-in-place vertical edges component 2, and reliable anchor is realized in spot welding one by one in junction
Gu;
Wherein, the horizontal reinforcement 11 in the prefabricated panel 1 of the top is also nested with the vertical muscle of constraint concealed beam, and in junction one
One spot welding;
The template support of edge member 2 is finally carried out, and pours polypropylene fibre sludge ceramsite concrete, assembled is formed
Wall.
As shown in figure 5, the preferable size of gained wall is as follows:It is 1350mm, concealed beam that concealed beam bottom spacing is arrived at the top of bottom girder
Height 200mm, cast-in-place vertical edges surface member width 200mm, cast-in-place vertical edges component inner concrete epidermis to wallboard most external
Bar spacing is 85, and wallboard bottommost reinforcing bar is 30mm away from bottom girder concrete jacket spacing.Inside " well " font arrangement of reinforcement wallboard not
Only steel content is low, and stress performance is good, energy-dissipating and shock-absorbing, Ductility Design are excellent, material application is reasonable.This structure not only meets routine
Civil buildings use requirement, also with high capacity, anti-seismic performance is good the characteristics of;It can realize that wallboard is mass produced, be conducive to
Realize building industrialization.