CN205369632U - Engrave cast -in -place cavity superstructure with taking rib steel net - Google Patents

Abstract

The utility model provides an engrave cast -in -place cavity superstructure with taking rib steel net is by girder, girt strip, upper limb listrium, bottom wing listrium, post and girder construction platform, take rib steel net to engrave to form, post and girder construction platform are dark platform or bright platform or vertebra shape platform, on -the -spot pouring has the steel mesh body of taking the rib steel net to engrave in the bottom wing listrium concrete, it holds net, supporting network to constitute by engraving the net, engraving to take the rib steel net to engrave, engrave the net, engrave and hold net, supporting network to be metal material, it constitutes and to take that the rib steel net engraves around to engrave the net, the steel mesh body contains steel sheet expansion mesh, V type ribs and turns to the connection piece, turn to connection piece both sides expansion mesh not in same orientation, the supporting network is the steel mesh body or reinforcing bar dictyosome, the utilization is taken the rib steel net to engrave and is poured into a mould the cavity superstructure, and the concrete mortar parcel is taken the rib steel net to engrave and is participated in common anti the splitting of atress, effective technological defect that exists of current hollow superstructure of solving.

Description

A kind of engrave cast-in-place cavity building roof with steel mesh with ribbing

Technical field

This utility model relates to a kind of cast-in-situ reinforced concrete cavity building roof technology, is specifically related to a kind of steel mesh with ribbing and engraves cast-in-place cavity building roof technology.

Background technology

At present in steel bar reinforced hollow concrete roof cast-in-situs technical field, generally adopt hermetic obturator component moulding by casting hollow building cover, such as the ZL98231113.3 structural member for concrete thin-wall cylinder that inventor declares, it is fabricated to the tubular obturator sealed, provide tubular, hollow obturator for realizing cast-in-situ hollow building roof, solve the non-process difficulties taking out heart pore-forming of cast-in-place cavity building roof.But due to the hollow filling body of sealed tubular, have that fixing difficulty is big, buoyancy is big, density big matter weight, produce, transport and site operation is all inconvenient, evacuation rate is low, can not form the defect of large-scale industrial production line.

Such as the ZL200410082381.9 " a kind of hollow floor slab with small dense ribs " that inventor declares, hollow filling body is embedded in floor slab with small dense ribs and forms " T font " stress cross-section hollow layer, solve the problem that " T font " stress cross section little ribbed cavity superstructure top board is smooth.But individually to apply one layer of cracking resistance steel wire bottom obturator and between cavity building roof template, solve the problem of concrete crackle bottom obturator, again owing to adopting cement mortar and the reinforcing glass fiber hollow filling body of making to realize little ribbed cavity superstructure, seal hollow filling body buoyancy big, the hollow filling body setting and hardening time is long, mould utilization factor is low, the big matter weight of hollow filling body density, production and transport inconvenience and the defect such as obturator globality difference cracky.

In order to promote cast-in-situ hollow building roof technology further, applicant has invented again the cast-in-situ hollow building roof (ZL201420219407.9) of a kind of steel mesh and polyphenyl block combination framework pore-forming, it is achieved that mechanized production cavity building roof becomes pole；Solve the problem that obturator quality, breakage, anti-floating, production, transport and obturator globality are damaged.But, owing to board-like polyphenyl block is organic material, occur in that again polyphenyl block organic material is not same class material with steel plate reticulate body inorganic material composition component, board-like polyphenyl block makes gripper shoe, lattice pore-forming component inside unit, it is unfavorable for becoming pole arbitrarily to open hole, air delivery duct, affects the defect of dark smoke controlling pipeline multifunctional and the building energy conservation integrated synthesis utilization that ventilation shaft and fire-fighting or can be formed as storage solar thermal energy and heat air delivery.

Therefore, develop and a kind of engrave cast-in-place cavity building roof with steel mesh with ribbing, the cavity building roof pore-forming new technique substituting existing hermetically sealed hollow filling body or polystyrene foam hatching solid body is engraved with packing less steel mesh with ribbing, realize metal material making steel mesh with ribbing to engrave, existing cavity building roof non-core-drawing pore-creating obturator is overcome to have problems, solving obturator adopts sheet material class supporter by obturator internal cell because of inside, is unfavorable for the defect of the multi-functional realizations such as air-supply；Reach that manufacturing speed is fast, production efficiency is high and concrete plyability is good, cost is low, transport and easy construction, processs of release anti-floating, light weight, without breakage, unshift, exempting isolation cushion block and elongated fixing reinforcing bar, steel mesh with ribbing is engraved the armored concrete combined effect with superstructure and is suppressed the generation of building crackle；Research and development floor framing is multi-functional to be engraved with the building energy conservation necessary expanded metal lath of integration body, is the breakthrough realizing cast-in-place cavity building roof new technique, has become as the urgent need of cavity building roof technical field innovation.

Utility model content

The purpose of this utility model is in that a kind of to engrave cast-in-place cavity building roof with steel mesh with ribbing, make full use of film effect and the surface tension of Cast-in-place concrete, engrave net what steel mesh with ribbing was engraved and engrave the inner surface holding the concrete of net outer rim cast to penetrate into steel mesh body, forming convex cement mortar heap group and bond the common stress cracking resistance of steel mesh body and noise reduction；Development and production efficiency is high and concrete plyability is good, exempt isolation and fixing, exempt and add cracking resistance steel wire, improve quality, drop bottom application work supplementary costs, transport easy construction, do not produce buoyancy, suppress the generation of building crackle, meet design requirement, ensure construction quality, solve to have suffered that steel mesh with ribbing engraves engraves net, engrave end net, supporting network is sheerly reticulated metallic material, be of value to the steel mesh with ribbing realizing building energy conservation integration and the multi-functional indispensability of superstructure and engrave；Adopt steel mesh with ribbing to engrave and realize cast-in-place cavity building roof new technique, packing less steel mesh with ribbing is utilized to engrave the existing hermetically sealed hollow filling body of replacement or polystyrene foam hatching solid body, and all kinds of sheet materials will be adopted to do the steel mesh shape obturator transition and upgrade supported, optimizing existing cast-in-place cavity building roof hole creating technology, any obturator overcoming existing cavity building roof hole creating technology can not with the defect of superstructure combined effect stress.

The technical solution of the utility model is as follows, a kind of engraves cast-in-place cavity building roof with steel mesh with ribbing, comprises girder, girt strip, top flange plate, bottom wing listrium, post and beam-construction platform, steel mesh with ribbing and engraves composition；Described post and beam-construction platform are dark platform or bright platform or vertebra shape platform；The steel mesh body that in described bottom wing listrium concrete, cast-in-site has steel mesh with ribbing to engrave；Described steel mesh with ribbing is engraved by engraving net, engraving and hold net, supporting network to form；Described engrave net, engrave end net, supporting network all sheerly metal material；Described net composition steel mesh with ribbing of engraving is engraved around；Described engraving holds net support to engrave the cross section, termination that net composition steel mesh with ribbing is engraved；Described supporting network controls the inner space height that steel mesh with ribbing is engraved；Described engrave net, engrave end net and made by steel mesh system；Described steel mesh body comprises steel plate expansion mesh and V type rib and turns to connection sheet；Described turn to connect sheet both sides expansion mesh not in same direction；Described supporting network is steel mesh body or reinforcing bar dictyosome.

Being more highly preferred to, described girder is Combination beam of steel and concrete or transfer structure for SRC beams；Described dark platform is with Combination beam of steel and concrete in the same horizontal line.

Being more highly preferred to, what described steel mesh with ribbing was engraved engraves net and engraves the inner surface formation convex cement mortar heap group holding the concrete of net outer rim cast cavity building roof to penetrate into steel mesh body.

Being more highly preferred to, described supporting network is fabricated to ㄇ shape or m shape, and it is identical that its height engraves interior outage degree with steel mesh with ribbing；Described reinforcing bar dictyosome is formed with the horizontally-arranged reinforcing bar coaxial multi-point welding of square crossing end by tandem reinforcing bar；The diameter<5mm, longitudinal bar>5 of described reinforcing bar, cross reinforcement length>580mm.

Being more highly preferred to, described steel mesh with ribbing engraves bottom and concrete mortar organic composite, builds up the cast-in-place cavity building roof lower flange thin plate in " T-shaped cross section ", described cast-in-place cavity building roof lower flange lamella thickness≤30mm.

Being more highly preferred to, described steel mesh with ribbing is engraved and is placed in girder is steel and concrete structure, and secondary beam adopts in reinforced concrete structure and the grid that intersects to form in length and breadth, and cast concrete forms cast-in-place steel reinforced concrete combination cavity building roof.

Of the present utility model a kind of engrave cast-in-place cavity building roof with steel mesh with ribbing, be in the cavity building roof template constructed at the scene, reinforced concrete or steel and concrete combine girder, the girt strip that colligation intersects in length and breadth, form girt strip grid；Adopt " I-shaped cross-section " structure of superstructure time, lay lower flange reinforcing bar, adopt " T section " structure of superstructure time, do not lay lower flange reinforcing bar；Forming structure platform at post and girder binding site, post and main beam structure platform are dark platform or bright platform or vertebra shape platform；Its dark platform is with reinforced concrete combination beam in the same horizontal line；Laying steel mesh with ribbing in the girt strip formation girt strip grid intersected in length and breadth to engrave, steel mesh with ribbing is engraved by engraving net, engraving and hold net, supporting network to form, and engraves net, engraves end net, supporting network all sheerly metal material；It is utilize the special mechanical equipments such as feeding machine, bicker system, augmentation system, cutter to make steel plate dictyosome or reinforcing bar dictyosome that steel mesh with ribbing is engraved；By engraving net compacting bending trace, the two-port up and down of engraving end net vertical direction pack steel plate molding edge, supporting network pack respectively after by engraving net, supporting network, the usage ratio of engraving end net are transported job site and are carried out Assembling；Open and engrave net, from the bending trace bending of compacting, put in the V-arrangement rib engraving network edge by engraving end net molding edge, in the expanded metal lath thread amounted to, place " Jiong shape " supporting network, will engrave to net two ends split and carry out welding and make steel mesh with ribbing and engrave；Engrave net composition steel mesh with ribbing and engrave around, engrave end net support and engrave the termination cross sectional shape that net composition steel mesh with ribbing is engraved, supporting network controls the inner space height that steel mesh with ribbing is engraved, engrave net, engrave and hold net to be made by steel mesh system, steel mesh body comprises steel plate expansion mesh and V type rib and turns to connection sheet, turn to the expansion mesh connecting sheet both sides not in same direction, utilize the film effect of concrete, constantly changing and surface tension of liquid of flow direction, the principle such as frictional force, resistance makes concrete engrave surface at steel mesh with ribbing to ooze and do not reveal；Supporting network is fabricated to ㄇ shape or m shape, and it is identical that its height engraves interior outage degree with steel mesh with ribbing；Supporting network is that reinforcing bar dictyosome is welded with horizontally-arranged reinforcing bar square crossing end coaxial multiple spot moment by tandem reinforcing bar；The bar diameter<5mm, longitudinal bar>5 of reinforcing bar dictyosome, cross reinforcement length>580mm, the plane of supporting network contacts with engraving net, jointly bears normal pressure load, and positive pressure is being engraved on the net fulcrum with supporting network；Pour concrete after the reinforcing bar of laying top flange, obtains required cast-in-place cavity building roof；During according to transmission solar heat wind energy heating and the cavity building roof of fire protection pipeline function, need to perforate in steel mesh with ribbing is engraved, due to the sheet material that supporter is adopted by original technology, will not be formed because gripper shoe is to intracavity lattice after changing supporting network into, the tired lock that causing ventilates is obstructed, tapping can be random, penetrates the short tube of reserved through girt strip in the steel mesh with ribbing of girt strip adjacent apertures is engraved, and forms air-supply passage；Or when stably reserving through girt strip short tube position, its short tube can directly contact the outer that girt strip adjacent belts rib steel net is engraved, cast-in-site concrete, what steel mesh with ribbing was engraved engraves net and engraves the inner surface formation convex cement mortar holding the concrete of net outer cast to penetrate into steel mesh body, directly bonding steel mesh with ribbing and engrave common stress cracking resistance, the noise simultaneously air of flowing produced has the effect of noise reduction；Further, improve the fire-protection rating of whole building；Multi-functional a kind of cast-in-place cavity building roof is engraved with steel mesh with ribbing thus building up.

Accompanying drawing explanation

Fig. 1 is that cast-in-place cavity building roof plane graph engraved by a kind of steel mesh with ribbing of this utility model.

Fig. 2 is this utility model post and beam-construction platform sectional view, Fig. 2 A, Fig. 2 B, Fig. 2 C, Fig. 2 A is the structural representation without bright beam superstructure, and Fig. 2 B is the structural representation without bright beam superstructure with bright cap structure, and Fig. 2 C is the structural representation without bright beam superstructure with vertebra type cap structure；

Fig. 3 is this utility model cement mortar heap group cross-section figure.

Fig. 4 is that steel mesh with ribbing of the present utility model is engraved supporting network and amounted to Fig. 4 A, Fig. 4 B embodiment, and Fig. 4 A is that supporting network floor map engraved by steel mesh with ribbing, and Fig. 4 B is that supporting network Folding structure schematic diagram engraved by this utility model steel mesh with ribbing.

Fig. 5 is that cast-in-place cavity building roof lower flange compound cross-section figure engraved by a kind of steel mesh with ribbing of this utility model.

Fig. 6 is that the cavity building roof sectional view cast-in-place with steel reinforced concrete combination engraved by a kind of steel mesh with ribbing of this utility model.

Fig. 7 is that structure chart embodiment engraved by steel mesh with ribbing of the present utility model.

Detailed description of the invention

It is further described below in conjunction with accompanying drawing this utility model.

Fig. 1 is that cast-in-place cavity building roof planar configuration figure engraved by a kind of steel mesh with ribbing of this utility model, when this utility model is implemented, the cavity building roof template in " I-shaped " stress cross section is laid baseplate reinforcing bar, the good rib reinforcement 3 of colligation, colligation girder reinforcing bar 2 is connected with post reinforcing bar 6, constitutes post net；Add auxiliary bar shearing resistance in the junction of post 6 and girder 2, form the structure platform 7 of post 6 and girder 2；Girt strip grid is become by girt strip reinforcing bar binding in length and breadth, in girt strip 3 grid, lay steel mesh with ribbing engrave 8, steel mesh with ribbing is engraved 8 and is made according to the requirement specification of architectural design, technology of the present utility model, all adopt mechanization production sheerly metal material to make steel mesh with ribbing and engrave 8, it is changed engrave end net into as steel mesh body by original various sheet materials that steel mesh with ribbing engraves 8, and supporting network is changed into steel mesh body or reinforcing bar dictyosome part by original various sheet materials, and its bar diameter is typically in about 4mm；By engraving net, engrave end net, supporting network is combined into the steel mesh with ribbing of different size and model and engraves and be used in cast-in-place cavity building roof；For in the cavity building roof with people's air defence function, the perforate up and down of net central authorities will be engraved, support with plastic tube between holes, during Cast-in-place concrete, concrete pours into support column 33 by plastic tube middle between holes, support column 33 has lower flange reinforcing bar on " S type " bar connecting, meets the people's air defence function cavity building roof grid < standard-required of 500mm；Complete a kind of steel mesh with ribbing of this utility model and engrave cast-in-place cavity building roof planar configuration.

Fig. 2 is this utility model post and beam-construction platform sectional view, Fig. 2 A, Fig. 2 B, Fig. 2 C, colligation girder reinforcing bar 2 is connected with post reinforcing bar 6 as shown in the figure, live to add auxiliary bar at the junction surface of post 6 and girder 2, superstructure local in the region adding auxiliary bar belongs to solid section, forms the structure platform 7 of post 6 and girder 2；Namely structure platform 7 is divided into three kinds of situations: Fig. 2 A structure platform cross section and girder and superstructure, on same horizontal plane, are called " without bright beam superstructure "；Fig. 2 B structure platform cross section and girder and superstructure be not on same horizontal plane, and its structure platform is higher than girder, is called " with bright cap structure without bright beam superstructure "；Fig. 2 C-structure platform cross section and girder and superstructure be not on same horizontal plane, and its structure platform is higher than girder, and becomes vertebra shape, is called " with vertebra type cap structure without bright beam superstructure ".

Fig. 3 is this utility model cement mortar heap group cross-section figure, during such as figure Cast-in-place concrete, make full use of film effect and the surface tension of Cast-in-place concrete, 8 engrave net 81 and engrave the concrete of end net 82 outer rim cast and penetrate into the inner surface of steel mesh body is engraved at steel mesh with ribbing, form convex cement mortar heap group 84 and bond the common stress cracking resistance of steel mesh body, the inner side erectting side that convex cement mortar heap group 84 overwhelming majority is engraved at steel mesh with ribbing；Owing to the concrete convex cement bonded sand oar heap group that 8 bottom pourings are penetrated into engraved by steel mesh with ribbing, in the effect vibrated, by the slump impact and major part directly bonds the common stress cracking resistance of steel mesh body, when steel mesh with ribbing engraves the convex cement mortar heap group 84 inside setting side to cavity building roof conveying wind energy, the noise that the flow velocity of wind is produced has sound deadening.

Fig. 4 is that steel mesh with ribbing of the present utility model is engraved supporting network and amounted to Fig. 4 A, Fig. 4 B, embodiment is that this utility model steel mesh with ribbing is engraved supporting network and amounted to shown in figure, expanded metal lath body length or required bar-mat reinforcement body length needed for the height 96 engraved according to steel mesh with ribbing and the overlapping length cutting engraving net 95, at two ends At The Height two bending traces 97 of pressure of required steel plate dictyosome or reinforcing bar dictyosome, during by Assembling, bending is fabricated to ㄇ shape support net 9；Reinforcing bar at the two ends At The Height of required reinforcing bar dictyosome is converted into by bender > 90 ° of angles, it is easy to storing or on-the-spot rolls over angle in 90 °；During by Assembling, bending is fabricated to ㄇ shape or m shape reinforcing bar dictyosome supporting network 9.

Fig. 5 is that cast-in-place cavity building roof lower flange compound cross-section figure engraved by a kind of steel mesh with ribbing of this utility model.Cavity building roof " T-shaped " stress sectional view is engraved for this utility model steel mesh with ribbing, being in that in template 14, the position of girder and girt strip is determined in line, laying and colligation girder 2 and girt strip reinforcing bar 3, by its form grid, the bottom chevron shaped rib engraved by steel mesh with ribbing is in direct contact with in cavity building roof template 14；Steel mesh with ribbing is engraved along V-arrangement rib direction>600mm time, it is engraved bottom comers position and forms concrete water conservancy diversion inclined-plane 104, strengthen the mobility of concrete, owing to the concrete cement bonded sand oar heap group that 8 bottom pourings are penetrated into engraved by steel mesh with ribbing, in the effect vibrated, by the slump impact and major part directly bonds steel mesh body and forms the thin lower flange of common stress anticlastic, the concrete of field cast-in-place and the net of engraving engraving the end are compounded to form the lower flange 10 of cavity building roof, the thickness<30mm of the thin base plate in lower flange 10.The partial content of other components is directly understood with reference to described above, here also just repeats no more.

Fig. 6 is that a kind of steel mesh with ribbing of this utility model is engraved and the steel reinforced concrete cast-in-place cavity building roof sectional view of combination, and Fig. 6 is that steel mesh with ribbing is engraved to combine with formed steel construction and reinforced concrete structure and formed shaped steel 11 structure and combine cast-in-place cavity building roof with guiding principle muscle concrete；Girder adopts shaped steel, and girt strip adopts reinforced concrete structure；Laying steel mesh with ribbing between girder and girt strip and between girt strip and girt strip to engrave, after pour concrete, superstructure forms " T " font stress cross section；When processing shaped steel 11 girder, girder web plate 111 is reserved with the through hole passed through for girt strip lower rebar 114, girt strip 3 upper reinforcement 115 is by top, shaped steel top flange 112 and forms intersection, girt strip 3 lower rebar 114 went here and there steel main beam web 111, colligation constitutes girt strip reinforcing bar 3, girt strip intersects composition in length and breadth with girt strip to be laid steel mesh with ribbing and engraves the grid of 8, the top flange 112 of steel main beam, web 111 and girder lower flange 113 inwall are wrapped up by concrete, solve the fire prevention of steel main beam, antirust problem.Parcel steel main beam 11 lower end adopts two pieces of L-type steel plate particular manufacturing crafts to be connected with the superstructure template on girder both sides；A die body of steel-mixed combination cavity building roof structure is formed with template 14 and particular manufacturing craft by pole and movable Contraband steel, pole upper end heads on shaped steel, shaped steel is put superstructure template, girder both sides particular manufacturing craft wraps up, the direct detailed description with reference to Fig. 5 of other partial contents is understood, and here also just repeats no more.

Fig. 7 is that structure chart embodiment engraved by steel mesh with ribbing of the present utility model, Fig. 7 is that figure amounted to by the net of engraving that this utility model embodiment steel mesh with ribbing is engraved, as shown in Figure 7, make steel plate dictyosome 15 by utilizing the special mechanical equipments such as feeding machine, bicker system, augmentation system, cutter and suppress the net of engraving of bending trace 86, at the construction field (site) by bending tool, engrave net 87 main body by what 8 peripheries engraved by bending form one by one steel mesh with ribbing in bending trace place；Factory engraves end net 88 expanded metal lath body length according to the height that steel mesh with ribbing is engraved needed for cutting; engrave end net 88 for every and cut out sheet metal two panels; the width of 8 engraved by two panels sheet metal leaf length=steel mesh with ribbing; with special equipment, sheet metal sheet is pressed into V-shape 89; V-shape sheet metal sheet is wrapped in by stamping machine after engraving the two ends of end net 88 and engraves end net two-port pressing by parcel; both end net two-port was engraved in shaping protection, and inhibitory action is played in the distortion again steel mesh with ribbing engraved；When being used for " T-shaped cross section "; end net 88 expanded metal lath body length is engraved according to needed for the height cutting that steel mesh with ribbing is engraved; engrave end net for every and cut out sheet metal two panels; wherein the width of 8 engraved by a piece of sheet metal leaf length=steel mesh with ribbing; another sheet sheet metal leaf length < steel mesh with ribbing engrave 8 width; with special equipment, sheet metal sheet is pressed into V-shape; after being beneficial to the two ends that end net 88 engraved by parcel; by stamping machine V-shape sheet metal sheet is wrapped in and engraves end net two-port and flattened; both end net two-port was engraved in shaping protection, and inhibitory action is played in the distortion again steel mesh with ribbing engraved；Engraving end net 88 and be arranged in the lower end V-arrangement rib that steel mesh with ribbing engraves 8, multiple pressure two row's traces when impression, mainly folding forms concrete water conservancy diversion inclined-plane 104 when engraving net, changes steel mesh with ribbing and engraves 8 bottom shapes, is conducive to steel mesh with ribbing to engrave the mobility of concrete bottom 8.

Finally should be noted that: above example is only in order to illustrate that the technical solution of the utility model is not intended to limit, although this utility model being described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that, still detailed description of the invention of the present utility model can be modified or equivalent replacement, and without departing from any amendment of this utility model spirit and scope or equivalent replace, it all should be encompassed in the middle of right of the present utility model.

Claims (6)

1. engrave a cast-in-place cavity building roof with steel mesh with ribbing, engraved formed by girder, girt strip, top flange plate, bottom wing listrium, post and beam-construction platform, steel mesh with ribbing；Described post and beam-construction platform are dark platform or bright platform or tapered land；The steel mesh body that in described bottom wing listrium concrete, cast-in-site has steel mesh with ribbing to engrave；Described steel mesh with ribbing is engraved by engraving net, engraving and hold net, supporting network to form；Described engrave net, engrave end net, supporting network is metal material and makes；Described net composition steel mesh with ribbing of engraving is engraved around；Described engraving holds net support to engrave the cross section, termination that net composition steel mesh with ribbing is engraved；Described supporting network controls the inner space height that steel mesh with ribbing is engraved；Described engrave net, engrave end net and made by steel mesh system；Described steel mesh body comprises steel plate expansion mesh and V type rib and turns to connection sheet；Described turn to connect sheet both sides expansion mesh not in same direction；Described supporting network is steel mesh body or reinforcing bar dictyosome.

2. a kind of as claimed in claim 1 engrave cast-in-place cavity building roof with steel mesh with ribbing, it is characterised in that described girder is Combination beam of steel and concrete or transfer structure for SRC beams；Described dark platform is with Combination beam of steel and concrete in the same horizontal line.

3. a kind of as claimed in claim 1 engrave cast-in-place cavity building roof with steel mesh with ribbing, it is characterised in that what described steel mesh with ribbing was engraved engrave net and engrave the concrete of end net outer rim cast cavity building roof and penetrate into the inner surface of steel mesh body and form convex cement mortar heap group.

4. a kind of as claimed in claim 1 engraving cast-in-place cavity building roof with steel mesh with ribbing, it is characterised in that described supporting network is fabricated to ㄇ shape or m shape, it is identical that its height engraves interior outage degree with steel mesh with ribbing；Described reinforcing bar dictyosome is formed with the horizontally-arranged reinforcing bar coaxial multi-point welding of square crossing end by tandem reinforcing bar；The diameter<5mm, longitudinal bar>5 of described reinforcing bar, cross reinforcement length>580mm.

5. a kind of as claimed in claim 1 engrave cast-in-place cavity building roof with steel mesh with ribbing, it is characterized in that described steel mesh with ribbing engraves bottom and concrete mortar organic composite, build up the cast-in-place cavity building roof lower flange thin plate in " T-shaped cross section ", described cast-in-place cavity building roof lower flange lamella thickness≤30mm.

6. a kind of as claimed in claim 1 engrave cast-in-place cavity building roof with steel mesh with ribbing, it is characterized in that described steel mesh with ribbing engraves that to be placed in girder be steel and concrete structure, secondary beam adopts in reinforced concrete structure and the grid that intersects to form in length and breadth, and cast concrete forms cast-in-place steel reinforced concrete combination cavity building roof.