CN100395417C - Construction technique method by using hollow cover of storied building fabricated from cast in-site reinforcing steel bar concrete - Google Patents
Construction technique method by using hollow cover of storied building fabricated from cast in-site reinforcing steel bar concrete Download PDFInfo
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- CN100395417C CN100395417C CNB2004100775942A CN200410077594A CN100395417C CN 100395417 C CN100395417 C CN 100395417C CN B2004100775942 A CNB2004100775942 A CN B2004100775942A CN 200410077594 A CN200410077594 A CN 200410077594A CN 100395417 C CN100395417 C CN 100395417C
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Abstract
The present invention belongs to the technical field of steel bar or steel concrete construction in building structure, and is especially suitable for the site construction technique when prefabricated members are used by dark multi-rib floors without slabs, which are formed once by concrete in industrial and civil buildings. A floor manufactured by the construction method of the present invention is made in a way that a large number of preformed cavity members are combined with a small quantity of cast-in-place concrete in latticed ribs. A floor slab of the formed floor is composed of an upper and a lower end faces of each of the cavity members, and in fact is a hollow floor without a plate, which is composed of a preformed member body. The present invention has the characteristics saving cost and saving the height of layers. The thickness of a poured floor is the same as the thickness of a cavity, and the bottom surface is smooth and beautiful. Simultaneously, the present invention also has the advantages of simple work progress and little poured concrete quantity on the spot, and can ensure high use strength and completely meet the requirements of normal design and use.
Description
[technical field]
The invention belongs to reinforcing bar or steel concrete technical field of construction in the building structure.Site operation technology when the dark close rib plateless superstructure that is particularly useful for concrete one-shot forming cast in industry and the civilian construction uses prefabricated units.
[background technology]
At present, the most of precast hollow slab that adopts of the building of brick mix structure and frame construction is as floor structure, it is fast that this floor structure has speed of application, advantages such as cost is low, but, only use the filled with mortar slit owing to firmly do not link between adjacent two precast hollow slabs, thereby not only globality is poor, anti-seismic performance is low, and slit cracking, infiltration often occur, puts to no little inconvenience and psychological pressure to resident family.For addressing the above problem, a lot of building have adopted the method for cast-in-situ floor (solid, hollow).Though cast-in-situ floor has solved antidetonation and problems of crack, workload is big, from great, amount of reinforcement is big, has increased the load on post and basis simultaneously, and is very uneconomical.Precast hollow slab is suitable for little, the easy crack of span, easy to leak, structural integrity is poor, can only be that one-way slabs is used, and earthquake resisting performance is poor, the distortion that causes of factor such as basic differential settlement irresistibly, be used for multilayer, little span building more, can not be used for highrise building.At the bottom of tying up to plate, traditional cast-in-place rib ellbeam plate body exposes a lot of primary and secondary beams or little girt strip, and not attractive in appearance, need furred ceiling, can not carry out large bay and separate, be unfavorable for the installation of water power air conditioning piping.Its beam has reduced headway.Top board is very thin, and sound insulation is poor, and this kind rib ellbeam plate body is uneconomical, and function of use is poor.Though using close rib plate floor technology in some building operations now, but because the unreasonable structure of prefabricated units, can't use shock club, there is the space when causing in work progress, existing placing of concrete, perhaps closely knit inadequately, influence construction quality, simultaneously the template that when construction, needs large tracts of land to use, have a strong impact on the speed of construction, increase building costs simultaneously.Existing cast-in-place concrete hollow building roof construction technique, it generally is pre-buried Cavity structural member in concrete, need top or bottom at Cavity structural member, even top and the bottom are watered simultaneously and are smash steel concrete, hollow rate is low, from great, construction is extremely inconvenient, fails really to resolve the construction technology of hollow building cover.
[summary of the invention]
Significantly reduce the template consumption when the purpose of this invention is to provide a kind of the construction, can satisfy a kind of simple and easy to do job practices that construction quality requires to increase speed of application simultaneously.
For realizing above-mentioned technical purpose, the technology of the present invention solution: a kind of cast-in-place concrete hollow building roof construction technique is characterized in that: comprise with the lower part
(1) making of Cavity structural member uses fortifying fibre mortar or reinforced-concrete to make cuboid or inverted trapezoidal shaped element, and this member middle part has cavity, and deposits certain hour,
A, the cuboid of establishing the template construct upper opening or inverted trapezoidal shape Cavity structural member main body in this Cavity structural member main body, guarantee to reserve at least a face opening portion when making;
B, according to the shape of the opening portion of reserving in the above-mentioned Cavity structural member, install template corresponding and water mortar or cover plate part that reinforced-concrete is made Cavity structural member;
In c, the main part in above-mentioned Cavity structural member and the cover plate portion, before the mortar or concrete coagulation of one of them parts, above-mentioned two parts are made up, use cement mortar etc. bonding, and carry out finishing after the maintenance making of Cavity structural member;
(2) following steps are adopted in the construction of superstructure,
A, formwork, according to designing requirement, in the bottom of dark close rib building roof or only install template in the bottom of rib, template is wide slightly wideer than rib bottom width;
B, unwrapping wire are used for the position of accurate positioning rib by setting-out on template;
C, place and the colligation rib in reinforcing bar or lay reinforced mesh, shaped steel or other stressed materials, built-in fitting is installed, and is made the orthogonal thereto or oblique shape setting of above-mentioned reinforcing bar according to the position of setting-out;
D, emptying chamber member are placed Cavity structural member in the intercostal gap according to designing requirement;
E, notes concrete vibrating are made integral body with latticed rib and Cavity structural member, carry out maintenance, form removal afterwards, form cast-in-place concrete hollow building roof of the present invention.
When carrying out described (1) step, reinforcing rib is set in prefabricated cavity member.
When carrying out described (2) step, lay Cavity structural member in latticed rib steel muscle space after, reinforcing bar or steel in reinforcing rib that stretches out in the Cavity structural member and the rib are positioned colligation or welding.
When in Cavity structural member, reinforcing rib being set, the setting of embarking on journey anyhow of above-mentioned reinforcing rib, and reinforcing rib is provided with simultaneously at the upper surface of Cavity structural member or soffit or upper and lower surface, and reinforcing rib stretches out a segment length outside the Cavity structural member.
In making the Cavity structural member process, before the step c that carries out wherein, in the cavity of Cavity structural member, be provided with and the corresponding support member of cavity shape.
In the cast-in-place concrete hollow building roof steel concrete or steel concrete.
The present invention is by adopting above-mentioned technical solution, obtained following positive technique effect: by adopting the Cavity structural member of cuboid or inverted trapezoidal shape, the mode that cooperates the close rib of intersection simultaneously, the consumption and the formwork time of template have been obtained in work progress, to have saved, improve the speed of construction, significantly reduced construction cost simultaneously; By adopting the reinforcing bar and the affixed mode of reinforcing bar in the latticed rib that Cavity structural member is provided with, it is whole that Cavity structural member and latticed rib are constituted, and increased the intensity of superstructure, simplified the technology of constructing simultaneously.
[description of drawings]
Fig. 1 is the front view of Cavity structural member;
Fig. 2 is the lateral view of Cavity structural member;
Fig. 3 is the upward view of Cavity structural member;
Fig. 4 is the vertical view of Cavity structural member;
Fig. 5 is the vertical view with latticed rib superstructure;
Fig. 6 is the sectional view with latticed rib superstructure.
[specific embodiment]
Below in conjunction with accompanying drawing the present invention is further detailed:
Shown in Fig. 1-4, the member shown in the figure is a concrete for making, the rectangular or rhombus of this member upper/lower terminal face, and the side is square or trapezoidal, its middle part is the corresponding cavity of shape of shape and its profile.Be provided with reinforcing rib 1 in the upper surface 4, this reinforcing rib 1 is arranged in concrete, and along continuous straight runs be arranged in parallel.When requirement of strength was higher, above-mentioned reinforcing rib 1 can be cross or intersecting parallels is arranged in order, under or the situation that requirement of strength is not high less in the size of member, also can not establish reinforcing rib 1; Under the very high situation of requirement of strength, can establish reinforcing rib 1 equally in its soffit 2.The quantity of reinforcing rib 1, intensity and whether dispose reinforcing rib and should determine by Structural Design Requirement.Thereby the strength and stiffness of Cavity structural member of the present invention are improved greatly, and simultaneously, it has simple in structure, characteristics such as watertightness good, in light weight, convenient construction and transport.Reinforcing rib 1 is arranged in Cavity structural member or adopt reinforcing mat or both combinations, reinforcing rib 1 is respectively reinforcing bar, prestressed reinforcement, steel wire, steel fibre, fibre, bundle or other strength bar, and reinforcing mat is respectively that steel mesh reinforcement, gauze wire cloth, fleece, nonwoven are gluing arranges net or other strengthens cloth, net.These muscle, silk, net are respectively applied for different occasions, and the structure of formation, shape, local structure, loading characteristic are also just different, bear main active force as reinforcing bar, and silk, host will bear by-local forces what and the anticracking structure is used.Prestressed reinforcement can be given the prestressing of structure base plate, makes the structure base plate strength higher, and resistance to deformation and crack ability are stronger.Because Cavity structural member and structure base plate have reinforcing rib or reinforcing mat, therefore, whole cavity component strength height, stressed power transmission is more reasonable, uses this Cavity structural member to pour into dark rib plateless superstructure, can hang and carry the greater weight object.When making above-mentioned Cavity structural member, also reinforcing rib can be provided with and reveal muscle, reveal net or reveal bundle in addition.Dew muscle or dew net can improve the adhesion stress between Cavity structural member and the cast-in-place rib better like this, prevent cast-in-place and prefabricated combination interface cracking effectively, help stressed power transmission of superstructure and cooperative bearing, reveal muscle, reveal net or reveal the formed structure of bundle, shape and effect incomplete same.
In the above-mentioned Cavity structural member, the thickness of side 3 can better alleviate the weight of whole cavity member so preferably less than the thickness of its upper surface 4 and soffit 2.The external surface of Cavity structural member is the rough surface of corrugated or dentation or plucking or other shape.Like this, Cavity structural member can improve the adhesion stress between it and the rib better when being applied to floor.Cavity structural member is the layer structure more than at least two layers, and by one deck cementitious matter one deck cloth or net, multilayer build-up such as one deck cementitious matter is glued again forms for one deck cementitious matter one deck cloth or net again, and cloth or net are at least more than one deck.Cementitious matter can be various types of cement, resin or organic or inorganic or mixture bonding adhesive, and also suitably admixture gathers materials or filler.As shown in Fig. 5 and Fig. 6, also be provided with support member in the above-mentioned cavity, being shaped as of support member is cross, the height of support member generally should be identical with the interior outage degree of cavity, being provided with like this can make the effect of upper and lower surface by support member, bears pressure jointly, prevents from upper surface is crushed.Support member by the fortifying fibre cement mortar, add reinforced concrete, timber, organic compound or other materials and make.In the size of Cavity structural member big or desired strength higher in, can use the support member of intersecting parallels, under or the situation that requirement of strength is low less, can use yi word pattern to support or do not use support member in the Cavity structural member size.The filling method that also has a kind of cavity in addition, cavity inside divide or all filling or foamed plastic pasting, expanded perlite, expanded vermiculite, foaming or light materials such as aerated light concrete, rock wool, mineral wool or glass wool.Cavity structural member has insulation and heat insulation and sound insulation property preferably like this, and its effect of the structure of different materials is different with function, can select different filling methods for use according to actual design.Also can be reserved with the hole of penetration pipe on the Cavity structural member or be embedded with the sleeve pipe of threading, the layout of more convenient like this netting twine and construction.
Below be the manufacturing process of above-mentioned Cavity structural member, at first, install template, the general employing that installs of template has hinged movable template, and promptly on the template with the bottom surface that is produced on Cavity structural member, other four Side shutterings are connected through the hinge, above-mentioned template is the opening box shape in use, in its side and bottom surface partly water mortar or layer of concrete, the thickness of this layer is decided by design requirement, makes its middle part form cavity structure.The upper surface portion of Cavity structural member is made separately, lays reinforcing rib according to designing requirement, and pouring mortar or concrete are made tabular, and wherein the reinforcing rib of She Zhiing exposes the outer certain-length of member.Treat above-mentioned two parts casing, when guaranteeing that one of them is in leather hard, make up, but also add cement mortar in the junction, make it bonding more firm in when combination.When the casing desired strength is higher, before making up, also need in cavity, to lay support member, further improve the intensity of Cavity structural member.After carrying out maintenance at last, promptly finish the making of Cavity structural member integral body.
As shown in Figure 5 and Figure 6, the use of the Cavity structural member among the present invention.As Fig. 6, above-mentioned Cavity structural member is placed in the corresponding netted close rib of size and size and cavity, and above-mentioned rib inside is provided with reinforcing bar 8.The construction technological process of superstructure is generally, at first, and according to designing requirement, determine spacing, section, the arrangement of reinforcement of close rib, determine the size of Cavity structural member, the used reinforcing rib quantity and the layout of reinforcing rib by these data, data such as the size of support member and intensity are made corresponding Cavity structural member.
Its process is for installing template at first at the construction field (site), the installing only to install below latticed rib of this template gets final product, because of only in the grid flank, watering in the placing of concrete process, so needn't be in construction the superstructure below all install template, identical in the erection method of template and the traditional job practices.Formwork erection well after, the beginning unwrapping wire operation; Unwrapping wire carries out according to the position and the distribution of when design rib, and setting-out mainly is the accurate position of determining rib; The reinforcing bar or the shaped steel of rib are installed according to the position of unwrapping wire then, place Cavity structural member in the grid space, in the process of placing Cavity structural member, can be with the reinforcing rib that stretches out on the Cavity structural member, be fixed on the reinforcing bar or steel in the latticed rib, specifically can use modes such as welding, colligation affixed.Reinforcing rib in the Cavity structural member and the reinforcing bar in the rib are fixed together, make the superstructure after the cast form an integral body, increase the strength and stiffness of superstructure, make things convenient for simultaneously in the casting process, the inconsistent phenomenon that produces owing to vibrated concrete; Carry out concrete pouring again, and vibrate, carry out maintenance at last.
Superstructure by the said method making, be to adopt a large amount of prefabricated Cavity structural members, in conjunction with a small amount of cast-in-situ concrete in the latticed rib, make superstructure, floor is to be made of two end faces about the Cavity structural member in the formed superstructure, is actually the plateless hollow building cover that constitutes by the prefabricated units body.Because the concrete casting among the present invention only use in latticed rib, so its pouring process is simple, difficulty of construction is low, and the while can not produce the space and influence construction quality.Carry out maintenance and form removal work at last.By adopting the superstructure of above-mentioned job practices made, not only save cost, and its main characteristics is to save floor height, the thickness of pouring superstructure is identical with the thickness of cavity, the bottom surface is smooth attractive in appearance, work progress is simple simultaneously, the pouring concrete in-situ amount is less, also can guarantee very high working strength, satisfies normal design and use requirement fully.
Claims (6)
1. a cast-in-place concrete hollow building roof construction technique is characterized in that, comprises with the lower part:
(1) making of Cavity structural member uses fortifying fibre mortar or reinforced-concrete to make cuboid or inverted trapezoidal shaped element, and this member middle part has cavity, and deposits certain hour,
A, the cuboid of establishing the template construct upper opening or inverted trapezoidal shape Cavity structural member main body when making this Cavity structural member main body, guarantee to reserve at least a face opening portion;
B, according to the shape of the opening portion of reserving in the above-mentioned Cavity structural member, install template corresponding and water mortar or cover plate part that reinforced-concrete is made Cavity structural member;
In c, the main part in above-mentioned Cavity structural member and the cover plate portion, before the mortar or concrete coagulation of one of them parts, above-mentioned two parts are made up, use cement mortar bonding, and carry out finishing after the maintenance making of Cavity structural member;
(2) following steps are adopted in the construction of superstructure,
A, formwork, according to designing requirement, in the bottom of dark close rib building roof or only install template in the bottom of rib, template is than rib bottom width;
B, unwrapping wire are used for the position of accurate positioning rib by setting-out on template;
C, place and the colligation rib in reinforcing bar or lay reinforced mesh or the stressed material of welding shaped steel, built-in fitting is installed, and is made the orthogonal thereto or oblique shape setting of above-mentioned reinforcing bar, reinforced mesh or shaped steel according to the position of setting-out;
D, emptying chamber member are placed Cavity structural member in the intercostal gap according to designing requirement;
E, notes concrete vibrating are made integral body with latticed rib and Cavity structural member, carry out maintenance, form removal afterwards, form cast-in-place concrete hollow building roof.
2. according to the described a kind of cast-in-place concrete hollow building roof construction technique of claim 1, it is characterized in that:
When carrying out described (1) step, reinforcing rib is set in prefabricated cavity member.
3. a kind of cast-in-place concrete hollow building roof construction technique according to claim 1, it is characterized in that: when carrying out described (2) step, lay Cavity structural member in latticed rib steel muscle or shaped steel space after, reinforcing bar or shaped steel in reinforcing rib that stretches out in the Cavity structural member and the rib are positioned colligation or welding.
4. a kind of cast-in-place concrete hollow building roof construction technique according to claim 2, it is characterized in that: when in Cavity structural member, reinforcing rib being set, the setting of embarking on journey anyhow of above-mentioned reinforcing rib, and reinforcing rib is provided with simultaneously at the upper surface of Cavity structural member or soffit or upper and lower surface, and reinforcing rib stretches out a segment length outside the Cavity structural member.
5. a kind of cast-in-place concrete hollow building roof construction technique according to claim 1 is characterized in that: in making the Cavity structural member process, before the step c that carries out wherein, be provided with and the corresponding support member of cavity shape in the cavity of Cavity structural member.
6. a kind of cast-in-place concrete hollow building roof construction technique according to claim 1 is characterized in that: be steel concrete or steel reinforced concrete in the cast-in-place concrete hollow building roof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100775942A CN100395417C (en) | 2004-12-27 | 2004-12-27 | Construction technique method by using hollow cover of storied building fabricated from cast in-site reinforcing steel bar concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100775942A CN100395417C (en) | 2004-12-27 | 2004-12-27 | Construction technique method by using hollow cover of storied building fabricated from cast in-site reinforcing steel bar concrete |
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| CN1796680A CN1796680A (en) | 2006-07-05 |
| CN100395417C true CN100395417C (en) | 2008-06-18 |
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| CNB2004100775942A Active CN100395417C (en) | 2004-12-27 | 2004-12-27 | Construction technique method by using hollow cover of storied building fabricated from cast in-site reinforcing steel bar concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761229B (en) * | 2009-12-14 | 2012-02-01 | 山东万鑫建设有限公司 | Method for constructing hollow overlapped rib plate support system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644082B (en) * | 2009-08-21 | 2011-08-24 | 贵州金三利科技建材有限公司 | Assembling method of gypsum evacuated mould |
| CN103015598B (en) * | 2012-12-20 | 2016-01-06 | 湖北大成空间科技股份有限公司 | A kind of construction method of energy-conservation close rib cavity floor |
| CN103015597B (en) * | 2012-12-20 | 2016-05-11 | 湖北大成空间科技股份有限公司 | A kind of construction method of energy-conservation close rib cavity floor |
| CN103243848B (en) * | 2013-05-13 | 2015-09-30 | 王惠滨 | The construction technology of cast-in-place concrete floor or superstructure and the spring support member of employing |
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|---|---|---|---|---|
| GB1364118A (en) * | 1970-11-27 | 1974-08-21 | Lemming Pedersen Og Eriksson R | Prefabricated deck elemenst of reinforced concrete |
| CN2157243Y (en) * | 1993-05-22 | 1994-02-23 | 吉首市建筑建材科学研究所 | Small block combined floor slab |
| CN2160693Y (en) * | 1993-03-20 | 1994-04-06 | 于少华 | Shuttering member |
| CN1348040A (en) * | 2001-11-23 | 2002-05-08 | 邱则有 | Cavity member for floor slab with hidden and dense ribs |
| CN2522492Y (en) * | 2002-01-28 | 2002-11-27 | 邱则有 | Board-rib combined steel reinforced concrete hollow floor |
-
2004
- 2004-12-27 CN CNB2004100775942A patent/CN100395417C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1364118A (en) * | 1970-11-27 | 1974-08-21 | Lemming Pedersen Og Eriksson R | Prefabricated deck elemenst of reinforced concrete |
| CN2160693Y (en) * | 1993-03-20 | 1994-04-06 | 于少华 | Shuttering member |
| CN2157243Y (en) * | 1993-05-22 | 1994-02-23 | 吉首市建筑建材科学研究所 | Small block combined floor slab |
| CN1348040A (en) * | 2001-11-23 | 2002-05-08 | 邱则有 | Cavity member for floor slab with hidden and dense ribs |
| CN2522492Y (en) * | 2002-01-28 | 2002-11-27 | 邱则有 | Board-rib combined steel reinforced concrete hollow floor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761229B (en) * | 2009-12-14 | 2012-02-01 | 山东万鑫建设有限公司 | Method for constructing hollow overlapped rib plate support system |
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| CN1796680A (en) | 2006-07-05 |
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Address after: Luo East Lake Development Zone 430074 Hubei city of Wuhan Province Yu Road B Optics Valley International Plaza, No. 889 room 2401 Patentee after: Great achievement space, Hubei Science and Technology Co., Ltd. Address before: Luo East Lake Development Zone 430074 Hubei city of Wuhan Province Yu Road B Optics Valley International Plaza, No. 889 room 2401 Patentee before: Hubei Synthetic Space Building Technology Co., Ltd. |
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Denomination of invention: Construction technique method by using hollow cover of storied building fabricated from cast in-site reinforcing steel bar concrete Effective date of registration: 20161229 Granted publication date: 20080618 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Great achievement space, Hubei Science and Technology Co., Ltd. Registration number: 2016420000061 |
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