CN103422672A - Construction method for reinforced concrete prefabricated house - Google Patents

Construction method for reinforced concrete prefabricated house Download PDF

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Publication number
CN103422672A
CN103422672A CN2013103832132A CN201310383213A CN103422672A CN 103422672 A CN103422672 A CN 103422672A CN 2013103832132 A CN2013103832132 A CN 2013103832132A CN 201310383213 A CN201310383213 A CN 201310383213A CN 103422672 A CN103422672 A CN 103422672A
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prefabricated
concrete
installed
construction
stack
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CN2013103832132A
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Chinese (zh)
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CN103422672B (en
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杜新智
邢志军
李黎明
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杜新智
邢志军
李黎明
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Abstract

The invention provides a construction method for a reinforced concrete prefabricated house. The method comprises the following steps of constructing a foundation; mounting prefabricated wallboards; casting in situ T-shaped, L-shaped and inline vertical heel posts; pouring micro-expansion mortar into vertical steel tie preformed holes in the upper and lower ends of the prefabricated wallboards; mounting reinforced concrete prefabricated superimposed beams; mounting reinforced concrete prefabricated stairs and flat stepping plates; mounting prefabricated superimposed floor slabs on the prefabricated superimposed beams; welding and binding corresponding reinforcements exposed from the prefabricated superimposed floor slabs, the upper ends of the prefabricated superimposed beams and the prefabricated wallboards into a whole, and inserting vertical anchor bars for fixing the upper and lower end parts of the prefabricated superimposed beams and the wallboards, and casting self-compacting concrete on the upper parts of the prefabricated superimposed floor slabs. A 100m-high building can be constructed in an 8 earthquake fortification region such as Beijing by sequential and cyclic construction to a design top layer from bottom to top. According to the method, a technical index of building energy efficiency of 75 percent can be achieved, and the development of a prefabricated house construction technology can be accelerated.

Description

A kind of reinforced concrete precast assembling housing construction construction method

Technical field

The present invention relates to the building construction technology field, refer to especially the construction job practices in a kind of reinforced concrete precast assembling house.

Background technology

As far back as eighties of last century, China's fifties just brings into use assembled architecture, but assembled architecture technology slower development always at home is backward in technique in world standard.8 departments of State Council in 2009 dispatch a joint document and announce to start in China scientific research and demonstration and the popularization of assembled architecture comprehensively, the General Office of the State Council is about forwarding the notice [Office of the State Council is sent out (2013) No. 1] of State Development and Reform Commission, house town and country construction section green building action scheme, the departments such as house town and country construction want Speed-up Establishment to promote the standards system of the links such as design, construction, component production of industrialization of construction industry, the standardization of pushing structure part, component, parts, enrich the kind of standard component, improve versatility and substitutability.The building systems such as prefabricated assembled concrete, steel work that promote to be applicable to suitability for industrialized production, accelerate development the prefabricated and mounting technology of construction project, improves industrialization of construction industry technology integrated horizontal.The industrialization construction of base that support integrates design, produces, constructs, carry out the industrialized building demonstration pilot project.Actively carry out the house full trim, encourage New Dwelling once to fit up and put in place or the menu mode finishing, promote personalized finishing unified mutually with the industrialization finishing.The assembled architecture technical development just becomes act of state like this, and only having act of state just can make the assembled architecture technology is that new development is made in Chinese industry progress.

But the unreasonable structure of existing prefabricated building, member manufacturing process innovative point is on the low side, and component assembling construction process innovation point starting point is low, causes construction cost using technology higher than current, so Difficulty.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of reasonable structure design method, the construction of constructability, can reduce the reinforced concrete precast assembling housing construction construction method of the obvious economic of engineering cost more than 20%.

For solving the problems of the technologies described above, embodiments of the invention provide a kind of reinforced concrete precast assembling housing construction construction method, comprising:

Carry out foundation construction; Reserve groove at the grade beam upper surface during construction, and in groove, the polyethylene rod is installed;

Assign the vertical anchor bar of prefabricated panel along the load bearing wall axis by design attitude, draw the installation control line of prefabricated panel on the wall axis, and measure prefabricated panel installed height mark control point; Described prefabricated panel comprises precast wall panel and prefabricated inner wall panel; At first big angle ,Nei big angle and adjacent side fascia outside house are installed, and are proofreaied and correct levelness and the verticality of side fascia, then use setting tool to be fixed;

Precast wall panel is installed, and precast wall panel proofread and correct vertically reach absolute altitude after with there being the diagonal brace of leading screw that precast wall panel is fixed; Then the steel concrete inner wall panel is installed;

The reinforcing cage of the vertical cast-in-place structural load-bearing pillar of L-type, T-shaped, yi word pattern is installed, and precast wall panel and the structure reinforcing bars crossed out in the steel concrete inner wall panel are welded and fixed into to an integral body with the vertical vertical reinforcement colligation of cast-in-place structural load-bearing pillar;

The concrete-pouring template of vertical cast-in-place structural load-bearing pillar is installed, is then built the vertical cast-in-place structural load-bearing pillar of L-type, T-shaped, yi word pattern; And after concrete strength reaches code requirement the dismantling concrete formwork for placing;

Vertical steel tie preformed hole with microdilatancy mortar injection precast wall panel and steel concrete inner wall panel lower end;

At L-type, vertical cast-in-place structural load-bearing pillar top T-shaped, yi word pattern, reinforced concrete prefabricated stack beam is installed;

The prefabricated reinforced concrete stair are installed on foundation wall top;

Press the working drawing position step platen of having a rest is installed;

At prefabricated stack beam and vertical reinforcement concrete bearing post, prefabricated panel top, reinforced concrete prefabricated stack floor is installed; And in prefabricated stack floor slab bottoms, lateral bracket and vertical supporting column are installed;

The corresponding reinforcing bar welding colligation of the prefabricated stack floor of reinforced concrete, prefabricated stack beam, precast wall panel is become to an integral body; And insert anchor bar in prefabricated stack beam, precast wall panel bottom, steel concrete inner wall panel top and the bottom in vertical anchor bar preformed hole position, and pour into a mould the self-compacting concrete on prefabricated stack floor top.

As technique scheme preferably, described method also comprises: after installing the last layer prefabricated panel, by preformed hole to the described first floor grade beam top, up all in the assembled transverse concave groove of levels wallboard, put into round polyethylene sealing rod and inject building sealant.

As technique scheme preferably, described method also comprises:

The required template of present room walling panel is installed, and the reinforcing bar of colligation present room walling panel template, then concreting;

Do the roof heat insulation waterproof construction;

Door, window installation;

External Wall embedding horizontal joint, powdering construction;

Carry out indoor water, electricity, warm up, defend, gas, network service engineering construction,

Carry out the interior decoration construction.

As technique scheme preferably, the reinforced concrete prefabricated side fascia of described installation specifically comprises:

Carry out foundation construction, staircase shear wall pouring construction, and vertically insert tension rib on the grade beam axis;

Proofread and correct wallboard lower fulcrum zone level deviation with level gauge, and the actual installation position of definite prefabricated panel; Verticality to tension rib is proofreaied and correct, and adapted wallboard leveling device carries out horizontal actual deviation correction to prefabricated panel;

Prepare the levelling parallels; Prepare transverse joint water resistant polyurea ethene rod; Check whether prefabricated panel is for having obstacle in the groove connected;

Prefabricated panel is installed steel plate fulcrum, the installation prefabricated panel correction diagonal brace fixed connecting piece that diagonal brace is used is installed; The steel plateelement of the diagonal brace fulcrum set bolt on installation ground;

The water resistant polyurea ethene rod of installing in groove for installing at side fascia injects special seal gum; After side fascia is installed to the design and installation position with the lifting machinery handling, fixing upper steel diagonal brace is installed, and levelness and the verticality of proofreading and correct side fascia;

The reinforced concrete structural column of perfusion inner wall panel both sides;

Install after cast-in-place L-type, the pre-buried hydroelectric line penetration pipe that T-shaped, the yi word pattern load-bearing pillar passes through, formwork supporting plate and carry out L-type, T-shaped, yi word pattern load-bearing pillar and shear wall concreting;

With expansive concrete perfusion dowel hole, inside and outside wall board lower end; Prefabricated stack beam is installed, prefabricated stack floor is installed; Bearing support and the vertical supporting column of prefabricated stack floor bottom are installed; Reinforcing bar pre-embedded pipe and fixedly reserving hole template is installed in the second pouring layer of colligation stack floor top;

Reinforcing bar by one deck position that coexists between adjacent prefabricated stack floor is fixed together, and with level gauge, measures second pouring self-compacting concrete pouring construction absolute altitude control point; Then build self-compacting concrete, the secondary pouring construction, so that described reinforced concrete prefabricated wallboard, prefabricated stack beam, prefabricated stack floor structurally form a structural entity, improves the earthquake resistant structure performance;

The self-compacting concrete pouring construction carries out concrete curing after completing concrete final set.

As technique scheme preferably, described installation prefabricated reinforced concrete stair and breath step platen specifically comprise:

Connect lifting lifting rope on steel lifting fringed iris herb to lift by crane described precast stair on the suspension hook of described prefabricated stack beam, and the reinforcing bar of described precast stair and the reinforcing bar of step platform are fixed together; Concreting is so that described precast stair forms an integral body with the step platform.

As technique scheme preferably, described method also comprises:

Clear up after the rubbish on prefabricated stack floor watered moistening;

Mark off casting area on prefabricated stack floor and precast stair after, along the direction on the long limit of described prefabricated stack floor, carry out concreting until reach design elevation;

The moist curing concrete waters after concrete final set.

As technique scheme preferably, the method for the prefabricated stack beam of described installation specifically comprises:

By the lifting rope be fixed on pre-buried fastener, the described prefabricated stack beam state of being kept upright is lifted into to the installation fulcrum on wall column;

Pour into a mould the special-purpose self-compacting concrete of high strength at described prefabricated stack beam and cast-in-place L-type, lap-joint T-shaped, the yi word pattern load-bearing pillar, the beam that makes to superpose realizes that with the whole stack floor in top and inside and outside wall board overall structure connects to reach the purpose of design that improves anti-seismic performance.

As technique scheme preferably, describedly prefabricated stack floor be installed on prefabricated stack beam and vertical reinforcement concrete bearing post specifically comprised:

Lifting rope is fixed on four jiaos, prefabricated stack floor and middle symmetrical pre-buried suspension hook, and makes floor keep level to be lifted;

On wallboard, wall column, prefabricated stack beam, fixed bolster is installed, and prefabricated stack floor lifting is put in place; Inject the special-purpose self-compacting concrete of high strength in the gap of prefabricated stack floor, and inject the special-purpose self-compacting concrete of high strength between wallboard, wall column, prefabricated stack beam;

The self-compacting concrete pouring construction completes, the moistening maintenance of carrying out of watering after concrete final set.

As technique scheme preferably, during the prefabricated stack floor of described installation, also comprise:

According to design drawing, require the upper and lower side at prefabricated inner wall panel, the bottom plate of side fascia that the long vertical anchor bar of 500mm is installed;

According to drawing requirement, the reinforcing bar on the stack beam is become to an integral body with the upper strata corresponding reinforcing bar welding colligation on the stack floor at prefabricated stack beam position.

The beneficial effect of the embodiment of the present invention is:

The embodiment of the present invention can better utilize prefabricated units to build house, improves efficiency of construction.The design top layer is arrived in the circulation construction successively from bottom to top, can build the building of 100 meters of height as 8 degree earthquake protection areas, Pekinese, the present invention can realize the technical indicator of building energy conservation 75%, can reduce engineering cost 20% on year-on-year basis with the secondary structure design scheme, with the secondary structure design scheme, the construction period can shorten 1/3 on year-on-year basis, present technique factory rate reaches 80%, and the embodiment of the present invention can be accelerated the development of prefabricated house Building technology.

The accompanying drawing explanation

The schematic flow sheet of the method that Fig. 1 is the embodiment of the present invention;

Wallboard in the method that Fig. 2 is the embodiment of the present invention and floor mounting structure schematic diagram;

The syndeton schematic diagram that Fig. 3 is inner wall panel and reinforced concrete cast-in-situ constructional column;

The structural representation that Fig. 4 is assembled connection between prefabricated stack floor;

The syndeton schematic diagram that Fig. 5 is prefabricated stack floor and prefabricated stack beam;

The syndeton schematic diagram that Fig. 6 is inner wall panel and prefabricated stack floor;

The syndeton schematic diagram that Fig. 7 is side fascia and cast-in-place L-type pillar;

The syndeton schematic diagram that Fig. 8 is side fascia and cast-in-place T-shaped pillar;

The syndeton schematic diagram that Fig. 9 is side fascia and cast-in-place 1 type pillar;

The syndeton schematic diagram that Figure 10 is inner wall panel and prefabricated stack beam, prefabricated stack floor;

The structural representation that Figure 11 is inner corner trim place wallboard and cast-in-place concrete column.

The specific embodiment

For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.

The embodiment of the present invention proposed a kind of reinforced concrete precast assembling housing construction construction method, and its flow process as shown in Figure 1, comprising:

Carry out foundation construction; Reserve groove at the grade beam upper surface when construction, and in groove, the polyethylene rod is installed;

Assign the vertical anchor bar of prefabricated panel along the load bearing wall axis by design attitude, draw the installation control line of prefabricated panel on the wall axis, and measure prefabricated panel installed height mark control point; Described prefabricated panel comprises precast wall panel and prefabricated inner wall panel; At first big angle ,Nei big angle and adjacent side fascia outside house are installed, and are proofreaied and correct levelness and the verticality of side fascia, then use setting tool to be fixed;

Precast wall panel is installed, and is proofreaied and correct after vertically reaching absolute altitude and with the diagonal brace that leading screw is arranged, precast wall panel and steel concrete stack floor are realized fixing at precast wall panel; The steel concrete inner wall panel is installed;

The reinforcing cage that the constructional column of the vertical cast-in-place structural load-bearing pillar of L-type, T-shaped, yi word pattern and the horizontally-spliced use of inner wall panel connects is installed, and precast wall panel and the structure reinforcing bars stretched out in the steel concrete inner wall panel are welded and fixed into to an integral body with the vertical corresponding colligation of vertical reinforcement of cast-in-place structural load-bearing pillar;

The concreting template of the constructional column of vertical cast-in-place structural load-bearing pillar and the horizontally-spliced use of inner wall panel is installed, then builds L-type, T-shaped, the vertical cast-in-place structural load-bearing pillar of yi word pattern and the constructional column concrete of the horizontally-spliced use of inner wall panel; And after concrete strength reaches code requirement the dismantling concrete formwork for placing;

Vertical steel tie preformed hole with microdilatancy mortar injection precast wall panel and steel concrete inner wall panel lower end;

The prefabricated reinforced concrete stair are installed and by design elevation, the step platen of having a rest are installed;

At prefabricated stack beam and precast wall panel top, prefabricated stack floor is installed; And in prefabricated stack floor slab bottoms, lateral bracket and vertical supporting are installed;

The corresponding welding of the reinforcing bar stretched out on reinforced concrete prefabricated stack floor, prefabricated stack beam, prefabricated panel colligation is become to an integral body; And insert anchor bar on prefabricated stack beam, precast wall panel, steel concrete inner wall panel top in vertical anchor bar preformed hole position, then poured into a mould prefabricated stack floor top self-compact concrete in construction.

Wherein, the structure while being installed on precast floor slab by prefabricated panel as shown in Figure 2, precast floor slab 1 a prefabricated panel respectively is installed up and down, be provided with the reinforced concrete beam 21 of horizontal connection in this prefabricated panel 2 with fixing with this precast floor slab 1.This prefabricated panel 2 is provided with tension rib 23, injected hole 22 and lower end injected hole 24.Pass through lower end injected hole 24 injected water cement mortars 4 between this precast floor slab 1 and wallboard 2, and junction also is provided with waterstop sealing bar 15 and micro-expansion cement jointing 16.And formed cast-in-situ concrete overall structure layer 3 on this precast floor slab 1 top by stack cast-in-situ concrete layer.

Concrete, described method also comprises: after installing the last layer prefabricated panel, by preformed hole to the described first floor grade beam top, up all in the assembled transverse concave groove of levels wallboard, inject building sealant.

Concrete, described method also comprises:

The present room walling panel template is installed, and the reinforcing bar of colligation present room walling panel template, then concreting;

Do the roof heat insulation waterproof construction;

Door, window installation;

External Wall embedding horizontal joint, powdering construction;

Carry out indoor water, electricity, warm up, defend, gas, network service engineering construction,

Carry out the interior decoration construction.

Concrete, the described installation precast wall panel in said method specifically comprises:

Carry out foundation construction, and carry out staircase shear wall pouring construction, and vertically insert tension rib on the grade beam axis;

Proofread and correct wallboard lower fulcrum zone level deviation with level gauge, and the actual installation position of definite prefabricated panel; Verticality to tension rib is proofreaied and correct, and adapted wallboard leveling device carries out horizontal actual deviation correction to prefabricated panel;

Prepare water resistant polyurea ethene rod, check and clear up prefabricated panel for the obstacle in the groove connected, water resistant polyurea ethene rod is installed;

Prefabricated panel is installed steel plate fulcrum, the installation prefabricated panel correction diagonal brace fixed connecting piece that diagonal brace is used is installed; The steel plateelement of the diagonal brace fulcrum set bolt on installation ground;

Brush special seal gum in the groove for installation of side fascia after, water resistant polyurea ethene rod is installed in groove; By be in place after the side fascia lifting rear installation diagonal brace levelness and the verticality of proofreading and correct side fascia;

The reinforced concrete structural column of perfusion inner wall panel both sides;

Install after cast-in-place L-type, the pre-buried hydroelectric line penetration pipe that T-shaped, the yi word pattern load-bearing pillar passes through, formwork supporting plate institute's L-type, T-shaped, yi word pattern load-bearing pillar and shear wall concreting;

With expansive concrete perfusion dowel hole, inside and outside wall board lower end; Prefabricated stack beam is installed, prefabricated stack floor is installed; Carriage and the bracing frame of prefabricated stack underfloor are installed; Assembling reinforcement pre-embedded pipe and reserved casement;

Reinforcing bar correspondence between contiguous prefabricated stack floor is fixed together, with level gauge, measures and build the absolute altitude control point; Then build self-compacting concrete, so that described prefabricated panel, prefabricated stack beam, prefabricated stack floor structurally form a structural entity; The self-compacting concrete pouring construction completes, the moistening concrete curing of carrying out of watering after concrete final set.

Wherein, as shown in Figure 3, this inner wall panel 2A is fixed on reinforced concrete cast-in-situ constructional column 5.And as shown in figure 10, this inner wall panel 2A is provided with tension rib 23, injected hole 22, and these prefabricated stack floor 3 surfaces are provided with the layer of concrete 31 formed by on-the-spot second pouring concrete.This prefabricated stack floor 3 is fixed on prefabricated stack beam 7, and is filled with cement mortar 4 between this prefabricated stack floor 3 and prefabricated stack beam 7.As shown in Figure 4, between these two prefabricated stack floors 3, connect, the layer of concrete 31 then formed by on-the-spot second pouring concrete is secured in together.As shown in Figure 5, the junction of these two prefabricated stack floors 3 is fixed on prefabricated stack beam 7, and be filled with cement mortar 4 between this prefabricated stack floor 3 and prefabricated stack beam 7, the layer of concrete 31 then formed by on-the-spot second pouring concrete is secured in together.As shown in Figure 6, the inner wall panel 2A of this adjacent two layers is fixed on prefabricated stack floor 3, and this inner wall panel 2A is provided with tension rib 23, injected hole 22, and these prefabricated stack floor 3 surfaces are provided with the layer of concrete 31 formed by on-the-spot second pouring concrete.And as shown in Figure 7, be fixed with side fascia 2B at the external surface of cast-in-place L-type pillar 8, and the junction of this side fascia 2B and cast-in-place L-type pillar 8 is filled with cement mortar 4.Certainly, this cast-in-place pillar can be also other shapes, for example cast-in-place T-shaped pillar as shown in Figure 8 or cast-in-place yi word pattern pillar as shown in Figure 9.As shown in figure 11, at the side fascia 2B at inner corner trim place, can be fixed on cast-in-place concrete column 9, and the seam crossing of side fascia 2B is filled micro-expansion cement jointing 16.

Concrete, described installation prefabricated reinforced concrete stair and breath step platen specifically comprise:

Connect lifting lifting rope on steel lifting fringed iris herb to lift by crane described precast stair on the suspension hook of described prefabricated stack beam, and the reinforcing bar of described precast stair and reinforcing bar and Luo bolt in breath step platform are fixed together; Concreting is so that described precast stair forms an integral body with breath step platform.

Concrete, described method also comprises:

Clear up after the foreign material on prefabricated stack floor watered moistening;

Mark off and build the propelling construction sequential segments on prefabricated stack floor, direction along the long limit of described prefabricated stack floor is carried out concrete construction until complete the integral construction of a floor, the self-compacting concrete pouring construction completes, the moist curing concrete that waters after concrete final set, so the last layer sequence of construction is carried out in circulation again.

Concrete, the method for the prefabricated stack beam of described installation specifically comprises:

Be fixed on reinforcing bar suspension hook on pre-buried fastener and lifting wire rope by use and will described prefabricated stack beam keep level to be lifted into the installation fulcrum on wall column top, take after 10mm solid cement mortar plus side and support and fix;

Pour into a mould the special-purpose self-compacting concrete of high strength at described prefabricated stack beam and cast-in-place L-type, lap-joint T-shaped, the yi word pattern load-bearing pillar, the beam that makes to superpose realizes that with the whole stack floor in top and inside and outside wall board overall structure connects to reach the purpose of design of anti-seismic performance.

Concrete, describedly prefabricated stack floor is installed on prefabricated stack beam and vertical reinforcement concrete bearing post is specifically comprised:

With lifting wire rope and being fixed on four jiaos, prefabricated stack floor and middle symmetrical pre-buried reinforcing bar suspension hook, level will superpose the vertical-lift of floor use tower crane to floor is installed, horizontal handling is to concrete installation shaft line position again, take 10mm solid cement mortar after the installation in position plus side support fixing;

After the whole floor installation of the floor that will superpose, inject supporting plate and the cross binding lumps of wood and the vertical supporting post of the reinforcement of concrete in the following installing plate seam of prefabricated stack floor; Then the stack floor top between side fascia top, L-type load-bearing pillar top, T-shaped load-bearing pillar top, yi word pattern load-bearing pillar top, prefabricated stack beam, pour into a mould respectively the high-intensity self-compacting concrete of one deck, make described prefabricated panel, prefabricated stack beam, prefabricated stack floor structurally form a structural entity, the self-compacting concrete pouring construction completes, the moistening concrete curing of carrying out of watering after concrete final set.

Concrete, during the prefabricated stack floor of described installation, also comprise:

According to design drawing, require the upper and lower side at prefabricated inner wall panel, the bottom plate of side fascia that the long vertical anchor bar of 500mm is installed;

According to drawing requirement, the reinforcing bar on the stack beam is become to an integral body with the corresponding welding of the top reinforcement colligation on the stack floor at prefabricated stack beam position.

The above is the preferred embodiment of the present invention; should be understood that; middle-and-high-ranking technician for the art; under the prerequisite that does not break away from principle of the present invention; can also make some improvements and modifications; these improvements and modifications are exhibition results before the certainty in our invention, also should be considered as protection scope of the present invention.

Claims (9)

1. a reinforced concrete precast assembling housing construction construction method, is characterized in that, comprising:
Carry out foundation construction; Reserve groove at the grade beam upper surface during construction, and in groove, the polyethylene rod is installed;
Assign the vertical anchor bar of prefabricated panel along the load bearing wall axis by design attitude, draw the installation control line of prefabricated panel on the wall axis, and measure prefabricated panel installed height mark control point; Described prefabricated panel comprises precast wall panel and prefabricated inner wall panel; At first big angle ,Nei big angle and adjacent side fascia outside house are installed, and are proofreaied and correct levelness and the verticality of side fascia, then use setting tool to be fixed;
Precast wall panel is installed, and precast wall panel proofread and correct vertically reach absolute altitude after with there being the diagonal brace of leading screw that precast wall panel is fixed; Then the steel concrete inner wall panel is installed;
The reinforcing cage of the vertical cast-in-place structural load-bearing pillar of L-type, T-shaped, yi word pattern is installed, and precast wall panel and the structure reinforcing bars crossed out in the steel concrete inner wall panel are welded and fixed into to an integral body with the vertical vertical reinforcement colligation of cast-in-place structural load-bearing pillar;
The concrete-pouring template of vertical cast-in-place structural load-bearing pillar is installed, is then built the vertical cast-in-place structural load-bearing pillar of L-type, T-shaped, yi word pattern; And after concrete strength reaches code requirement the dismantling concrete formwork for placing;
Vertical steel tie preformed hole with microdilatancy mortar injection precast wall panel and steel concrete inner wall panel lower end;
At L-type, vertical cast-in-place structural load-bearing pillar top T-shaped, yi word pattern, reinforced concrete prefabricated stack beam is installed;
The prefabricated reinforced concrete stair are installed on foundation wall top;
Press the working drawing position step platen of having a rest is installed;
At prefabricated stack beam and vertical reinforcement concrete bearing post, prefabricated panel top, reinforced concrete prefabricated stack floor is installed; And in prefabricated stack floor slab bottoms, lateral bracket and vertical supporting column are installed;
The corresponding reinforcing bar welding colligation of the prefabricated stack floor of reinforced concrete, prefabricated stack beam, precast wall panel is become to an integral body; And insert anchor bar in prefabricated stack beam, precast wall panel bottom, steel concrete inner wall panel top and the bottom in vertical anchor bar preformed hole position, and pour into a mould the self-compacting concrete on prefabricated stack floor top.
2. reinforced concrete precast assembling housing construction construction method according to claim 1, it is characterized in that, described method also comprises: after installing the last layer prefabricated panel, by preformed hole to the described first floor grade beam top, up all in the assembled transverse concave groove of levels wallboard, put into round polyethylene sealing rod and inject building sealant.
3. reinforced concrete precast assembling housing construction construction method according to claim 1, is characterized in that, described method also comprises:
The required template of present room walling panel is installed, and the reinforcing bar of colligation present room walling panel template, then concreting;
Do the roof heat insulation waterproof construction;
Door, window installation;
External Wall embedding horizontal joint, powdering construction;
Carry out indoor water, electricity, warm up, defend, gas, network service engineering construction,
Carry out the interior decoration construction.
4. reinforced concrete precast assembling housing construction construction method according to claim 1, is characterized in that, the reinforced concrete prefabricated side fascia of described installation specifically comprises:
Carry out foundation construction, staircase shear wall pouring construction, and vertically insert tension rib on the grade beam axis;
Proofread and correct wallboard lower fulcrum zone level deviation with level gauge, and the actual installation position of definite prefabricated panel; Verticality to tension rib is proofreaied and correct, and adapted wallboard leveling device carries out horizontal actual deviation correction to prefabricated panel;
Prepare the levelling parallels; Prepare transverse joint water resistant polyurea ethene rod; Check whether prefabricated panel is for having obstacle in the groove connected;
Prefabricated panel is installed steel plate fulcrum, the installation prefabricated panel correction diagonal brace fixed connecting piece that diagonal brace is used is installed; The steel plateelement of the diagonal brace fulcrum set bolt on installation ground;
The water resistant polyurea ethene rod of installing in groove for installing at side fascia injects special seal gum; After side fascia is installed to the design and installation position with the lifting machinery handling, fixing upper steel diagonal brace is installed, and levelness and the verticality of proofreading and correct side fascia;
The reinforced concrete structural column of perfusion inner wall panel both sides;
Install after cast-in-place L-type, the pre-buried hydroelectric line penetration pipe that T-shaped, the yi word pattern load-bearing pillar passes through, formwork supporting plate and carry out L-type, T-shaped, yi word pattern load-bearing pillar and shear wall concreting;
With expansive concrete perfusion dowel hole, inside and outside wall board lower end; Prefabricated stack beam is installed, prefabricated stack floor is installed; Bearing support and the vertical supporting column of prefabricated stack floor bottom are installed; Reinforcing bar pre-embedded pipe and fixedly reserving hole template is installed in the second pouring layer of colligation stack floor top;
Reinforcing bar by one deck position that coexists between adjacent prefabricated stack floor is fixed together, and with level gauge, measures second pouring self-compacting concrete pouring construction absolute altitude control point; Then build self-compacting concrete, the secondary pouring construction, so that described reinforced concrete prefabricated wallboard, prefabricated stack beam, prefabricated stack floor structurally form a structural entity, improves the earthquake resistant structure performance;
The self-compacting concrete pouring construction carries out concrete curing after completing concrete final set.
5. reinforced concrete precast assembling housing construction construction method according to claim 1, is characterized in that, described installation prefabricated reinforced concrete stair and breath step platen specifically comprise:
Connect lifting lifting rope on steel lifting fringed iris herb to lift by crane described precast stair on the suspension hook of described prefabricated stack beam, and the reinforcing bar of described precast stair and the reinforcing bar of step platform are fixed together; Concreting is so that described precast stair forms an integral body with the step platform.
6. reinforced concrete precast assembling housing construction construction method according to claim 5, is characterized in that, described method also comprises:
Clear up after the rubbish on prefabricated stack floor watered moistening;
Mark off casting area on prefabricated stack floor and precast stair after, along the direction on the long limit of described prefabricated stack floor, carry out concreting until reach design elevation;
The moist curing concrete waters after concrete final set.
7. reinforced concrete precast assembling housing construction construction method according to claim 1, is characterized in that, the method for the prefabricated stack beam of described installation specifically comprises:
By the lifting rope be fixed on pre-buried fastener, the described prefabricated stack beam state of being kept upright is lifted into to the installation fulcrum on wall column;
Pour into a mould the special-purpose self-compacting concrete of high strength at described prefabricated stack beam and cast-in-place L-type, lap-joint T-shaped, the yi word pattern load-bearing pillar, the beam that makes to superpose realizes that with the whole stack floor in top and inside and outside wall board overall structure connects to reach the purpose of design that improves anti-seismic performance.
8. reinforced concrete precast assembling housing construction construction method according to claim 1, is characterized in that, describedly prefabricated stack floor is installed on prefabricated stack beam and vertical reinforcement concrete bearing post is specifically comprised:
Lifting rope is fixed on four jiaos, prefabricated stack floor and middle symmetrical pre-buried suspension hook, and makes floor keep level to be lifted;
On wallboard, wall column, prefabricated stack beam, fixed bolster is installed, and prefabricated stack floor lifting is put in place; Inject the special-purpose self-compacting concrete of high strength in the gap of prefabricated stack floor, and inject the special-purpose self-compacting concrete of high strength between wallboard, wall column, prefabricated stack beam;
The self-compacting concrete pouring construction completes, the moistening maintenance of carrying out of watering after concrete final set.
9. reinforced concrete precast assembling housing construction construction method according to claim 8, is characterized in that, during the prefabricated stack floor of described installation, also comprises:
According to design drawing, require the upper and lower side at prefabricated inner wall panel, the bottom plate of side fascia that the long vertical anchor bar of 500mm is installed;
According to drawing requirement, the reinforcing bar on the stack beam is become to an integral body with the upper strata corresponding reinforcing bar welding colligation on the stack floor at prefabricated stack beam position.
CN201310383213.2A 2013-08-29 2013-08-29 A kind of reinforced concrete precast assembling housing construction construction method CN103422672B (en)

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