CN102650148A - Overhang steel truss of wall technology - Google Patents
Overhang steel truss of wall technology Download PDFInfo
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- CN102650148A CN102650148A CN2011101289053A CN201110128905A CN102650148A CN 102650148 A CN102650148 A CN 102650148A CN 2011101289053 A CN2011101289053 A CN 2011101289053A CN 201110128905 A CN201110128905 A CN 201110128905A CN 102650148 A CN102650148 A CN 102650148A
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Abstract
The invention discloses an overhang steel truss of the wall technology, relates to a bearing overhang beam of a heat insulating composite wall, and aims at solving the problem of inconvenient construction process of concrete bearing overhang beams. The overhang steel truss is composed of steel bars; slanting poles are arranged on the overhang steel truss; the overhang steel truss is connected with the girders, the columns or a base wall of the main structure of a building, or the overhang steel truss is connected with the steel girders and the lateral sides of the steel columns of the main structure of the building; outdoor reinforcing steel bars or a metal gauze is connected with a reinforcing steel bar at the outer end of the overhang steel truss to form the overhang steel truss of the wall technology; the main structure of the building is a concrete structure, a steel structure or a wooden structure; and the base wall is a weight bearing wall or a masonry light infilled wall. The overhang steel truss does not damage templates and is convenient to construct and low in manufacturing cost; the overhang steel truss enhances the energy saving and insulation effects of the wall, and not only satisfies the concrete structure but also is convenient for steel structure building; and the overhang steel truss has the function of being used in energy conservation transformation of the building and can satisfy the requirements for arranging different decorations and installing hangings on the outdoor walls of the building.
Description
Technical field
The present invention relates to a kind of steel truss of encorbelmenting, particularly a kind of steel truss of encorbelmenting of body of wall technology.
Background technology
Since Europe begins to carry out body of wall energy-saving heat preserving technology the seventies,, mainly be to adopt sandwich heat preserving wall body and the thin energy-saving heat-insulating body technique of plastering of adhesive insulating layer except that the wooden construction filled wall with the light steel frame filled wall.But the passage that the sandwich heat preserving wall body heat runs off is too many, and combined wall is too thick, can not satisfy the requirement of body of wall energy-saving heat preserving.Thin energy-saving heat preserving technology of plastering has reduced the passage that heat runs off significantly than sandwich heat preservation, but it is bad to prevent fires, so Germany and Britain's separate provision do not allow to adopt thin energy-saving heat-insulating body technique of plastering in the height on 22 meters, 18 meters.In order to increase fire safety; Invented steel wire net rack benzene plate abroad, and imported China into, steel wire net rack benzene plate is to guarantee the plaster safety of topping of outside cement mortar with the oblique rollering steel silk; But 200 every square metre oblique rollering steel silk increases heat transfer 60%, can not satisfy the requirement of body of wall power-saving technology.
The heat-preserving wall that wire lath is arranged in the external protection now is a fixed outer wire lath how; And how to guarantee the topping safety that insulation layer is outer? Being provided with wire lath in the topping of China's glue powder polyphenyl particle energy-saving heat-insulating wall, is with the lentor nail wire lath and basic unit's body of wall to be fixed.(it is the plastic sheet of an about 3mm of thickness, the about 30mm of width that these plastics connect bridge to connect bridge with plastics among the provincial standard DB23/1167 of Heilongjiang Province in addition; Two ends have bayonet socket) the benzene plate module and the cast-in-situ concrete that will have a dovetail groove fixes, and these plastics connect bridge and are used for fixing the gauze wire cloth in the thick floated coat of outside 22mm simultaneously.The lentor nail is connected bridge rigidity with plastics bad, benzene plate atrophy when particularly catching fire, and the outer protection layer is plastered to come off and still can be caused danger.
It is current when curtain wall decoration, billboard, anti-theft fence, sunbreaker and thick and heavy ornament are installed on composite thermal-insulating wall; All need shaped steel be penetrated insulation layer and basic unit's body of wall is fixed; Vertical and the about 0.8～1.2m of level interval of shaped steel, shaped steel quantity is many, and section is big; Heat output is many, greatly influences effects of energy saving and emission reduction.A high 80mm, the channel-section steel of wall thickness 5mm, section just reach 12.24cm
2Even only 1 of every square metre of metope, the revised coefficient of thermal conductivity of EPS plate reaches 0.12w/m approximately
2.k, compare 0.05w/m
2.k coefficient of thermal conductivity increase heat transfer 140%!
The problem that body of wall energy-saving heat preserving technology exists not only influences the effect of building energy conservation; Influence the low-carbon (LC) social construction; Its safety also influences the safety of people's lives and properties; The fire savety problem of poor that the thin heat-preserving wall of plastering exists has fire to take place when causing various places, and the tragedy that Jing'an District, Shanghai high level that 2010.11.15 shocks the world catches fire has just taken place not long ago! Burn because of the firecracker of setting off fireworks makes the northeast first high Shenyang feudal dynasties ten thousand prosperous CITIC Building insulation layer morning on the lunar New Year's Day in 2011, fire causes heavy losses to society thereupon.Why body of wall energy-saving heat preserving technology fire is continuous, and except the quality of materials existing problems, also because the topping in the macromolecule insulation layer that is easy to the burn outside is too thin, the cement polymer mortar that is merely 3～4mm accompanies alkaline-resisting screen cloth.
Comprise that developed country does not all solve the contradiction of body of wall energy-saving heat preserving performance and safety, durability.
For solving the contradiction of the energy-saving heat preserving performance that exists in the body of wall technology and safety, durability; And for alleviating the weight of high-storey building frame structure filled wall; Favourable major structure of construction antidetonation, applicant have proposed following body of wall technical patent successively:
Patent 1: denomination of invention " has support, the anti-seismic heat-preservation combined wall of reinforced concrete external protection is arranged ", the patent of patent No. ZL200410002698.7.
Patent 2: denomination of invention " binding composite heat preservation wall that support is arranged ", the patent of patent No. ZL200610153289.6.
Patent 3: denomination of invention " inside and outside be provided with reinforcing bar/with the combined wall of metal lath and plaster ", number of patent application 200710167871.2, the patent of publication number CN101168977A.
Patent 4: denomination of invention " a kind of composite component of alkaline-resisting glass fiber net plasterer ", number of patent application 200910141007.4, the patent of publication number CN101570981.
Patent 5: denomination of invention " a kind of exterior wall external insulation composite wall body that supporting is arranged ", number of patent application 201019185057.2, the patent of publication number CN101914961A.
Patent 6: denomination of invention " combined wall that a kind of both sides have net to plaster ", number of patent application 201010253687.1, the patent of publication number CN101936046.
The combined wall of above-mentioned 6 patents all has a common member: support the beam of encorbelmenting.As:
The supporting of patent 1 Liang Weigang that encorbelments supports 2, sees Fig. 2, Fig. 5, Fig. 7 of this patent, is to be supported by the steel that shaped steel or steel plate are welded.Why at that time applicant adopts steel to support, and is because the influence that the stone curtain wall decorating structure is installed.Shaped steel when stone curtain wall is installed all is to penetrate insulation layer and basic unit's body of wall or fix with major structure of construction, and the shaped steel of stone curtain wall keel is fixed with the shaped steel that penetrates insulation layer again.Because of the topping outside the composite thermal-insulating wall of patent 1 formation is formed, hung the curtain wall on steel supports through reinforcing bar by reinforcing bar, metal lath and plaster, adopt steel to support so receive the influence of stone curtain wall decorating structure.Because supporting, steel conducts heat too much, unfavorable to energy-saving heat preserving, in the combined wall of sealing, be easy to corrosion, and only if take body of wall apart in the future, otherwise can't keep in repair, be difficult to guarantee 50 years durable yearss, generally should not adopt, so in later patents, all change concrete hanging top into.
Fig. 1 of the present invention is exactly this concrete bearing beam construction figure that encorbelments.The concrete bearing beam of encorbelmenting is perpendicular to that major structure of construction is provided with, and it is inner fixes with major structure of construction.It is in order to solve following problem that the concrete bearing beam of encorbelmenting is set:
1), the concrete bearing beam of encorbelmenting hangs outdoor reinforcing bar, gauze wire cloth and outdoor reinforcing bar binding form the reinforcing bar of being hung, the curtain wall of metal lath and plaster, the thickness 22～30mm of the curtain wall of plastering increases the composite thermal-insulating wall fireproof performance.
With reference to the scientific achievement expert's conclusion of Chinese Research Institute for Building Sciences: during floated coat thickness 25mm to steel wire web-cement polystyrene sandwich board building fire test and fire resistance research project; Fire endurance is 1.2 hours; Flame did not have propagated when fire took place; Belong to non-combustible on the whole, the integral combustion performance of steel wire web-cement polystyrene sandwich board can be identified as incombustible material.The floated coat curtain wall of the above-mentioned patent of applicant can satisfy the requirement that fire endurance is not less than 1 hour, and combined wall belongs to non-combustible on the whole.
The encorbelment safety of reinforcing bar that beam hangs, metal lath and plaster curtain wall of concrete bearing is good, even catch fire, external protection is still hanging like a curtain wall, generally can not come off and hurt sb.'s feelings.
2), the strand of hot bridging of Guttr board that bodies of wall such as sandwich heat preservation, insulation blocks are existed makes the point-like heat bridge, reduces heat bridge and reduces 90% approximately, reduces the passage that heat runs off significantly, increases body of wall energy-saving heat preserving effect.
3), be supported the reinforcing bar that the beam of encorbelmenting is hung owing to having at the hole; The hole periphery has reinforcing bar; Convenient take the heat-insulating bridge-cut-off measure, make the energy-saving heat preserving performance of composite thermal-insulating wall can be considerably beyond the best thin heat-preserving wall of plastering of current energy-saving heat preserving effect at door and window hole.The encorbelment heat bridge of beam of the last only remaining concrete bearing of combined wall increases composite thermal-insulating wall thermal transmittance 0.003～0.004w/m
2.k it is thin because of hole periphery insulation layer to paste EPS plate thin plastering body of wall, and in window-wall ratio 0.3～0.5 o'clock, severe cold area increases the about 0.1～0.2w/m of composite thermal-insulating wall thermal transmittance
2.k, all be ready to want big window now, the heat that the window periphery runs off is a lot.Concrete bearing beam and the hole periphery reinforcing bar of encorbelmenting is set, and to reducing the door and window hole heat bridge, increasing body of wall energy-saving heat preserving effect provides condition.
4), when thick plaster topping and the insulation layer that are provided with that concrete bearing encorbelments that beam hangs are bonding, macromolecule adhesive is plastered between topping and the insulation layer in cement mortar, does not receive the ultraviolet ray irradiation, good endurance; And the polymer grout of the thin topping of plastering is directly shone by ultraviolet ray, and durability is bad.
From the above, the concrete bearing beam of encorbelmenting is set makes composite thermal-insulating wall both good fireproof, good, the good endurance of safety, increase considerably body of wall energy-saving heat preserving effect again.It has solved and has comprised that developed country does not have a difficult problem that solves, the contradiction of Here it is body of wall energy-saving heat preserving performance and safety, durability.
Also there is following problem in beam but concrete bearing is encorbelmented:
1, no matter be the cast-in-place installation concrete bearing beam of encorbelmenting, the still prefabricated installation concrete bearing beam of encorbelmenting, construction is all very inconvenient, destroys bigger, time-consuming again to template.
2, the cast-in-situ concrete supporting is encorbelmented, and beam is inconvenient to be connected prefabricated same trouble with steel work.
3, in existing building reducing energy consumption engineering, use when the exterior wall external insulation composite wall body of supporting is arranged, bar planting quantity is many, and new-old concrete is difficult to be combined as a whole, and is difficult for guaranteeing workmanship, and construction is inconvenient.
4, on composite thermal-insulating wall, be difficult to design moulding outstanding or depression at present, the architect is given the rein to imagination, it is unfavorable to increase the elevation of building effect.
Whether there is method more easily to hang the reinforcing bar in the combined wall of the said patent of background technology, the weight of metal lath and plaster topping; Not only make things convenient for and be connected with concrete structure; Also be convenient to be connected, and make things convenient for existing building reducing energy consumption practical applications with steel work.
Summary of the invention
The steel truss of encorbelmenting that the purpose of this invention is to provide a kind of body of wall technology solves the above-mentioned concrete bearing problem that beam exists of encorbelmenting.
The steel truss of encorbelmenting of a kind of body of wall technology of the present invention: the said steel truss of encorbelmenting is formed the plane steel truss of encorbelmenting by steel pole, or forms the space steel truss of encorbelmenting by steel pole, and the said steel truss of encorbelmenting is provided with brace and bears pulling force; The encorbelment beam of steel truss and major structure of construction, the steel plate that the post side is provided with is connected, or is connected with the steel plate of basic unit body of wall side setting, or the steel truss of encorbelmenting is connected with girder steel, the steel column side of major structure of construction; Outdoor reinforcing bar is connected with the steel pole of the steel truss outer end of encorbelmenting, and forms a kind of steel truss of encorbelmenting of body of wall technology; The beam of said major structure of construction, post are concrete structure, steel work or wooden construction, and said basic unit body of wall is the bearing wall or the light-weight filled wall of building by laying bricks or stones.
The present invention is with the crucial difference of public technology:
The steel truss of encorbelmenting of a kind of body of wall technology of the present invention is neither the steel-support of steel plate or section steel manufacture; The concrete bearing of the public technology beam of encorbelmenting; It is the steel truss that a kind of steel pole is made; One end and major structure of construction or fix with the side of basic unit body of wall become the steel truss of encorbelmenting.The present invention is used for the body of wall technology with steel truss.Say that from design theory this steel truss of encorbelmenting designs by steel work and truss theory, rather than by the concrete bearing of the concrete structure Design Theory beam of encorbelmenting.Say that from job practices the encorbelment construction and installation of beam of the construction and installation of the steel truss of encorbelmenting of a kind of body of wall technology of the present invention and the former concrete bearing that has disclosed technology are diverse.Say from technique effect; The steel truss of encorbelmenting of a kind of body of wall technology of the present invention not only can be born the function of use requirement of beam of encorbelmenting of former concrete bearing, and has avoided the encorbelment shortcoming of beam of concrete bearing, has enlarged the scope of application again; Have easy for installation; Reduce cost, increase body of wall energy-saving heat preserving effect, the advantage of wide application; And shear-stable diagonal member spare conveniently is set, and improve the anti-shearing bearing capacity of combined wall, favourable building aseismicity, these effects all are that the concrete bearing of the public technology beam of encorbelmenting is not available.
Because the steel truss of encorbelmenting of a kind of body of wall technology of the present invention is born the encorbelment function of beam of former concrete bearing, also can be referred to as the steel truss beam of encorbelmenting.
Technique effect of the present invention:
1, adopt the steel truss of encorbelmenting of a kind of body of wall technology of the present invention in concrete, to be connected with the steel truss of encorbelmenting by pre-embedded steel slab, do not destroy concrete blinding, save manual work and material consumption in the template installation process, easy construction reduces cost.
2, the steel truss of encorbelmenting of a kind of body of wall technology of the present invention has overcome the public technology concrete bearing inconvenient shortcoming that is connected with steel work of beam of encorbelmenting, and the steel truss of encorbelmenting makes things convenient for steel work, wooden construction, gently steel frame filled wall, wooden frame filled wall and light-weight filled wall are connected.Connect.On wooden construction, steel plate is installed, just can be connected, or the steel pole of the steel truss of encorbelmenting is that screw rod directly is connected with wooden construction with the steel truss of encorbelmenting with bolt.
3, the steel truss of encorbelmenting of a kind of body of wall technology of the present invention makes things convenient for the bar planting of existing building reducing energy consumption engineering that the steel truss of encorbelmenting is installed, and uses the exterior wall external insulation composite wall body that supporting is arranged, and guarantees fire savety, the durability of energy-saving heat-insulating wall.
4, encorbelment steel truss simple structure, the easy construction of a kind of body of wall technology of the present invention, steel using amount are lower than the concrete bearing beam of encorbelmenting.
With the maximum plane of the application quantity steel truss of encorbelmenting is example; Encorbelment on the plane steel truss both sides insulation layer or be referred to as in the otch that sandwich layer reserves the thickness of cement injection polymer mortar and be generally 40mm and get final product; About 140～the 180mm of height of steel truss encorbelments; The about 20mm of steel plate width, the about 0.003～0.005m of steel plate area
2During general most of function of use of decorating, steel plate needn't be installed in the steel truss outer end of encorbelmenting, and only is precast concrete supporting 1/15～1/10 of the used steel plate of beam of encorbelmenting is installed, and is that the cast-in-situ concrete supporting beam of encorbelmenting is installed 1/4～1/2.5 of used steel plate.
5, the steel truss of encorbelmenting of a kind of body of wall technology of the present invention reduces heat bridge and conducts heat approximately 50% than the concrete bearing beam of encorbelmenting, and reduces wall heat transfer coefficient, increases body of wall energy-saving heat preserving effect.
The concrete bearing beam specifications section of encorbelmenting generally needs 100 * 120mm, and concrete coefficient of thermal conductivity 1.54w/mk increases wall heat transfer coefficient 0.003～0.004w/m approximately
2.K.For preventing the steel truss steel pole corrosion of encorbelmenting, embodiment three pours into cement polymer mortar in the insulation layer gap, and with reference to the cement mortar coefficient of thermal conductivity, the polymer mortar coefficient of thermal conductivity is 0.93w/m.k, increases wall heat transfer coefficient 0.001～0.002w/m approximately
2.K., therefore, the steel truss of encorbelmenting is set reduces heat bridge, reduce wall heat transfer coefficient, increase body of wall energy-saving heat preserving effect.
6, the steel truss of encorbelmenting of a kind of body of wall technology of the present invention can be applicable in other body of wall energy-saving heat preserving technology; Like glue powder polyphenyl particle wall thermal insulating engineering and have the thick floated coat engineering that the dovetail groove benzene plate outside is provided with gauze wire cloth; Gauze wire cloth is connected with the steel truss of encorbelmenting, and hangs the external metallization net and the topping of plastering.The fireproof performance of steel truss of encorbelmenting is higher than the lentor nail far away or plastics connect bridge.The steel truss of encorbelmenting of the present invention is the primary structure member as structure; Satisfy the ultimate limit state designing requirement, and lentor nail or plastics connection bridge not the primary structure members of structure, can not calculate with structural theory; Do not satisfy the ultimate limit state designing requirement, the two degree of safety is not comparable.
7, the steel truss of encorbelmenting of a kind of body of wall technology of the present invention also can be applicable on the curtain wall decoration, decorates, decorates big plate decoration, plastic-aluminum curtain wall decoration like stone curtain wall decoration, curtain wall; Or be applied to the installation of exterior wall hanger such as billboard; Utilize the installation of body of wall installation solar power plant etc.; Substituting shaped steel is connected with the basic unit body of wall; Than shaped steel generally is installed practices thrift steel significantly at present, reduce significantly and conduct heat, make the heating area adopt curtain wall decoration also can satisfy the building energy conservation requirement.
8, the convenient facade moulding of complex design on combined wall of the steel truss of encorbelmenting of a kind of body of wall technology of the present invention, the moulding of horn of plenty elevation of building provides convenience, and this is that the concrete bearing of the public technology beam of encorbelmenting is not available.
9, the present invention can improve the anti-shearing bearing capacity of combined wall, favourable building aseismicity at light-duty combined wall arranged outside shear-stable diagonal member spare.
Description of drawings
Fig. 1 is encorbelment a beam 1-5 structure of the said a kind of concrete bearing of background technology;
Fig. 2 is the steel truss sketch map of encorbelmenting of a kind of body of wall technology of the present invention, and brace bears pulling force;
Fig. 3 is the steel truss sketch map of encorbelmenting of another kind of body of wall technology of the present invention, and brace bears pulling force;
Fig. 4 also is the steel truss sketch map of encorbelmenting of another kind of body of wall technology of the present invention, and brace bears pulling force;
Fig. 5 is the steel truss sketch map of encorbelmenting of constructing opposite a kind of body of wall technology with Fig. 2, and brace bears pressure;
Fig. 6 is the steel truss sketch map of encorbelmenting of constructing opposite a kind of body of wall technology with Fig. 3, and brace bears pressure;
Fig. 7 is the steel truss sketch map of encorbelmenting of constructing opposite a kind of body of wall technology with Fig. 4, and brace bears pressure;
Fig. 8 is the steel truss sketch map of encorbelmenting that of the present invention a kind of body of wall technology of multiple tracks brace and montant is set;
Fig. 9 is the steel truss scheme of installation of encorbelmenting of a kind of body of wall technology of embodiment five;
Figure 10 has combined wall horizontal profile sketch map outstanding or the depression moulding.
Figure 11 is embodiment six installs shear-stable diagonal member spare on the steel truss of encorbelmenting an exterior wall front elevation view;
Figure 12 is expression with screw with the fixing sketch map of semi-round ring shape fastener and steel plate.
Embodiment
Embodiment one: see Fig. 2～Fig. 8, Figure 12, and the steel truss 1-5 that encorbelments of a kind of body of wall technology of present embodiment, it forms the plane steel truss of encorbelmenting by steel pole, or forms the space steel truss of encorbelmenting by steel pole; The said steel truss 1-5 that encorbelments is provided with brace and bears pulling force; The encorbelment beam of steel truss 1-5 and major structure of construction 1, the steel plate that the post side is provided with is connected, or is connected with the steel plate of basic unit body of wall 1-1 side setting, or the steel truss 1-5 that encorbelments is connected with girder steel, the steel column side of major structure of construction 1; Outdoor reinforcing bar is connected with the steel pole of the steel truss 1-5 outer end of encorbelmenting, and forms a kind of steel truss of encorbelmenting of body of wall technology; The beam of said major structure of construction 1, post are concrete structure, steel work or wooden construction, and the said body of wall 1-1 of basic unit is the bearing wall or the light-weight filled wall of building by laying bricks or stones.
The plane arranged side by side steel truss of encorbelmenting is interconnected and just can form the space steel truss of encorbelmenting, or adopt other form to form space steel truss of encorbelmenting.The space steel truss of encorbelmenting is mainly used in the thick and heavy decoration of outdoor mounted, and uses when the exterior wall hanger is installed, and as a rule, the plane steel truss of encorbelmenting can satisfy instructions for use.
At the side pre-embedded steel slab of major structure of construction or basic unit's body of wall, the steel truss of encorbelmenting is the most frequently used way that is connected with the steel plate welding.Or outside steel plate, establish ring or loop fasteners, see Figure 12.The steel truss the inner of encorbelmenting is through in the ring or is fixed by loop fasteners, can reduce the welding job amount, and the steel pole of the particularly required steel truss of encorbelmenting is very thin like Φ 4 reinforcing bars, can use in the time of can not welding.But the steel plate connection is installed in bar planting in existing building reducing energy consumption engineering, or directly the steel truss of encorbelmenting is installed in bar planting.
Outdoor reinforcing bar is connected with the steel truss outer end of encorbelmenting; Can outdoor reinforcing bar upper end crotch be hung on the angle of cut below Fig. 2, the steel truss of encorbelmenting shown in Figure 3; Or the steel truss 1-5 upper end welding of encorbelmenting of outdoor reinforcing bar upper end and Fig. 2～Fig. 4, confirm with easy construction according to stressed; The encorbelment reinforcing bar welding or the overlap joint colligation of steel truss outer end of the lower end of reinforcing bar and Fig. 2～Fig. 4 is connected.Other body of wall energy-saving heat preserving technology as glue powder polyphenyl particle wall thermal insulating engineering and have dovetail groove benzene plate outside is provided with in the thick floated coat heat-preserving wall engineering of gauze wire cloth, wire lath is connected with the direct colligation in key truss 1-5 outer end of encorbelmenting and gets final product.
Carry out internal force analysis according to the truss theory, the encorbelment steel pole of steel truss 1-5 outer end of Fig. 2, Fig. 3 is that internal force is the rod member of " 0 ".Fig. 4 steel truss outer end steel pole of encorbelmenting is sagging, and sagging steel pole is the extension of diagonal in tension, and promptly sagging steel pole bears pulling force.The steel truss outer end of encorbelmenting is established steel pole and is made things convenient for reinforcing bar or wire lath in the topping to be connected with the steel truss of encorbelmenting.
That encorbelments steel truss and major structure of construction or basic unit's body of wall is connected that area is little, steel using amount is little, and that the heat transfer that the steel truss of encorbelmenting increases is set is also few even encrypt.When encryption setting was encorbelmented steel truss, the hanging force that each steel truss of encorbelmenting bears was little, so major structure of construction according to the invention can be wooden construction; So; Basic unit according to the invention body of wall not only can be bearing wall; Also can be light-weight filled wall or light steel frame filled wall or wooden frame filled wall, like the figuline building blocks wall, the concrete embedded steel plate of regional perfusion can be connected with the steel truss of encorbelmenting in light-weight filled wall.
Embodiment two: the difference of present embodiment and embodiment one is; Present embodiment is structure below the steel truss 1-5 outer end of encorbelmenting also has; Select for use according to the use needs: the steel truss 1-5 outer end welding steel of 1) encorbelmenting, the shaped steel of outdoor reinforcing bar or exterior wall hanger (like curtain wall, billboard) is connected with the steel plate of the steel truss 1-5 outer end of encorbelmenting; 2) the steel truss 1-5 outer end welding shaped steel of encorbelmenting, the shaped steel of outdoor reinforcing bar or exterior wall hanger (like curtain wall, billboard) is connected with the shaped steel of the steel truss 1-5 outer end of encorbelmenting.
When the door and window mouth is installed anti-theft fence and thick and heavy ornament etc. is installed; Need on the reinforcing bar of door and window mouth, to be provided with steel plate; Gu Menchuankou is provided with bi-steel, and steel plate is installed in the position that between bi-steel, needs, and connection ironware and the steel plate anti-theft fence being installed and thick and heavy ornament is installed are fixed.Therefore, when present embodiment is encorbelmented steel truss outer end welding steel, can make things convenient for outdoor reinforcement installation bi-steel.
But the steel pole chromium plating of the steel truss of encorbelmenting of embodiment one, two, zinc-plated anticorrosion, the steel truss periphery is filled insulation with the sealing of polyurethane foam glue encorbelmenting.But chromium plating, zinc-plated anticorrosion must carrying out at special factory, inconvenient in the application, the commissure is easy to corrosion especially, possibly become hidden danger, in engineering, is difficult to guarantee the brush heavy-duty antiseptic paint, can be undertaken by embodiment three.
Embodiment three: present embodiment and embodiment one or twos' difference is, present embodiment around the steel truss 1-5 that encorbelments insulation layer or be referred to as to cut out in the sandwich layer gap (or being referred to as groove), in gap, pour into cement polymer mortar; Or, in template, pour into cement polymer mortar in the steel truss 1-5 peripheral branch template of encorbelmenting; The encorbelment steel pole of steel truss 1-5 of cement polymer mortar protection avoids corrosion.
When the installation curtain wall decoration is not provided with insulation layer, just need in template, pour into cement polymer mortar in the steel truss peripheral branch template of encorbelmenting.Present embodiment pours into cement polymer mortar in gap or in template, cement polymer mortar can be one with both sides insulation layer (or being referred to as sandwich layer) bonding, steel pole needn't factory's chromium plating, zinc-plated just can be anticorrosion, it is more convenient to construct.
The steel work forfeiture is stable to be the danger that very easily takes place, and needs structure design to avoid by steel work and truss inner forces calculation.Encorbelment steel truss and cement polymer mortar of present embodiment is bonded as one, and rigidity is big, and the steel truss of avoiding encorbelmenting forfeiture is stable, and is stressed more favourable to the steel truss of encorbelmenting.Present embodiment is achieved many things at one stroke: anticorrosion, rigidity is big, the steel truss that helps avoiding the encorbelmenting stable generation of beam forfeiture of encorbelmenting.
When pressing the present embodiment construction; Should reserve the steel pole that the steel truss outer end of encorbelmenting is used to connect at gap or template outer end; Reinforcing bar in the topping of plastering or wire lath are connected with the steel truss outer end of encorbelmenting; Carry out topping when plastering, just can outer end steel pole and crotch plastered to protect with cement mortar prevents corrosion.
Embodiment four: see Fig. 5～Fig. 7, present embodiment and embodiment one, two or threes' difference is that the steel truss 1-5 that encorbelments of present embodiment is provided with brace and bears pressure.
The brace of the steel truss of encorbelmenting of Fig. 2～Fig. 4 and Fig. 8 all is to bear pulling force; The encorbelment brace of steel truss of Fig. 5～Fig. 7 bears pressure; Steel truss can satisfy force request though Fig. 5～Fig. 7 encorbelments, and the steel truss of encorbelmenting of Fig. 2～Fig. 4 is than Fig. 5～Fig. 7 steel truss reasonable stress of encorbelmenting.
Embodiment five: present embodiment and embodiment one, two, three or fours' difference is; 1), the inner and the interior reinforcing bar of combined wall external protection of the steel truss 1-5 that encorbelments fix the steel truss 1-5 that encorbelments of present embodiment can also have following mounting means, confirms according to the use needs:; 2), the inner of the steel truss 1-5 that encorbelments is positioned at the wire lath that external protection is plastered, the anchorage length requirement is satisfied in the inner of the steel truss 1-5 that encorbelments; 3), the inner of the steel truss 1-5 that encorbelments is positioned at the wire lath that external protection is plastered, with inside and outside socket will encorbelment the inner of steel truss 1-5 of steel wire 9 and fix with the reinforcing bar 4 mutual drawknots of combined wall indoor setting, see Fig. 9; Formation is encorbelmented at the steel truss 1-5 that encorbelments in the combined wall outside; 4), the steel pole of the steel truss 1-5 that encorbelments is screw rod, directly and wooden frame fix with nut; 5), the steel pole of the steel truss 1-5 that encorbelments is installed in bar planting on concrete.
In the present embodiment 1)～3) be used for the outer facade moulding of combined wall, among the embodiment 4), 5) be applicable to respectively with wooden frame and be connected, and be used for existing building reducing energy consumption engineering with usefulness.
When requiring the comparatively complicated facade moulding of combined wall design, can adopt Fig. 8 steel truss of encorbelmenting by present embodiment.Outstanding according to the metope moulding or cave in dimensional requirement is connected outdoor reinforcing bar or wire lath with the montant of the steel truss 1-5 outer end diverse location of encorbelmenting, insulation layer adopts different-thickness, thereby forms the combined wall of different-thickness, sees Figure 10.Present embodiment can enrich the facade moulding.
Encorbelment the inner of steel truss is positioned at the wire lath that external protection is plastered, and when satisfying anchorage length and requiring, reliably bonds the safety that can guarantee to install the steel truss of encorbelmenting between topping and the insulation layer because of through the interfacial agents of plastering being plastered in the outside.If also through inside and outside will the encorbelment steel truss or fix of steel wire that sockets by reinforcing steel bar frame and indoor reinforcing bar that the steel truss of encorbelmenting is formed; And it is reliably bonding between topping and the insulation layer through the interfacial agents of plastering to be plastered in the outside, the safety that more can guarantee to install the steel truss of encorbelmenting.During concrete the application, select for use according to stressed size.
The concrete bearing of the public technology beam of encorbelmenting can not be installed by present embodiment; The present invention adopts the steel truss horn of plenty elevation of building moulding of encorbelmenting that convenience is provided widely; This is that the concrete bearing of the public technology beam of encorbelmenting is not available, and beam is difficult to the elevation of building moulding that provides abundant so concrete bearing is encorbelmented.
Embodiment six: see Figure 11; Present embodiment and embodiment one, two, three or fours' difference is; On steel plate that present embodiment is installed in the steel pole of the steel truss 1-5 that encorbelments or outer end or the shaped steel shear-stable diagonal member spare 2 is installed, said shear-stable diagonal member spare 2 is reinforcing bar, steel plate or shaped steel; Said shear-stable diagonal member spare 2 is oblique setting, and shear-stable diagonal member spare 2 is connected with the steel truss 1-5 that encorbelments, or shear-stable diagonal member spare 2 is connected with major structure of construction 1.
Present embodiment can further improve the anti-shearing bearing capacity of combined wall, favourable building aseismicity.Shear-stable diagonal member spare can be positioned at the topping of plastering, and also can be positioned at one unique scenery of the outer formation of the topping of plastering.The steel truss of encorbelmenting of the present invention is convenient installs shear-stable diagonal member spare, and the described concrete bearing of the background technology beam of encorbelmenting can not be installed shear-stable diagonal member spare.
When shear-stable diagonal member spare is installed in the steel truss outer end of encorbelmenting, often need the space steel truss of encorbelmenting.
Embodiment seven: the difference of one of present embodiment and the above embodiment of embodiment is that present embodiment is installed wire lath in the steel truss 1-5 outer end of encorbelmenting.
Claims (13)
1. the steel truss of encorbelmenting of body of wall technology, the said steel truss of encorbelmenting (1-5) is formed the plane steel truss of encorbelmenting by steel pole, or forms the space steel truss of encorbelmenting by steel pole; It is characterized in that the said steel truss of encorbelmenting (1-5) is provided with brace and bears pulling force; The encorbelment beam of steel truss (1-5) and major structure of construction (1), the steel plate that the post side is provided with is connected, or is connected with the steel plate of basic unit body of wall (1-1) side setting, or the steel truss of encorbelmenting (1-5) is connected with girder steel, the steel column side of major structure of construction (1); Outdoor reinforcing bar is connected with the steel pole of the steel truss of encorbelmenting (1-5) outer end, forms a kind of steel truss of encorbelmenting of body of wall technology; The beam of said major structure of construction (1), post are concrete structure, steel work or wooden construction, and said basic unit body of wall (1-1) is the bearing wall or the light-weight filled wall of building by laying bricks or stones.
2. the steel truss of encorbelmenting of a kind of body of wall technology according to claim 1; It is characterized in that; Structure below the steel truss of encorbelmenting (1-5) outer end also has; Select for use according to the use needs: the steel truss of 1) encorbelmenting (1-5) outer end welding steel, the shaped steel of outdoor reinforcing bar or exterior wall hanger is connected with the steel plate of the steel truss of encorbelmenting (1-5) outer end; 2) steel truss (1-5) the outer end welding shaped steel of encorbelmenting, the shaped steel of outdoor reinforcing bar or exterior wall hanger is connected with the shaped steel of the steel truss of encorbelmenting (1-5) outer end.
3. the steel truss of encorbelmenting of a kind of body of wall technology according to claim 1 and 2 is characterized in that, the steel truss of encorbelmenting (1-5) on every side insulation layer or be referred to as to cut out gap in the sandwich layer, in gap, pour into cement polymer mortar; Or, in template, pour into cement polymer mortar in the steel truss of encorbelmenting (1-5) peripheral branch template; The encorbelment steel pole of steel truss (1-5) of cement polymer mortar protection avoids corrosion.
4. the steel truss of encorbelmenting of a kind of body of wall technology according to claim 1 and 2 is characterized in that the steel truss of encorbelmenting (1-5) is provided with brace and bears pressure.
5. the steel truss of encorbelmenting of a kind of body of wall technology according to claim 3 is characterized in that the steel truss of encorbelmenting (1-5) is provided with brace and bears pressure.
6. according to claim 1, the technological steel truss of encorbelmenting of 2 or 5 described a kind of bodies of wall; It is characterized in that; 1), the inner and the interior reinforcing bar of combined wall external protection of the steel truss of encorbelmenting (1-5) fix the said steel truss of encorbelmenting (1-5) can also have following mounting means, confirms according to the use needs:; 2), the inner of the steel truss of encorbelmenting (1-5) is positioned at the wire lath that external protection is plastered, the anchorage length requirement is satisfied in the inner of the steel truss of encorbelmenting (1-5); 3), the inner of the steel truss of encorbelmenting (1-5) is positioned at the wire lath that external protection is plastered, with inside and outside socket will encorbelment the inner of steel truss (1-5) of steel wire (9) and fix with the mutual drawknot of reinforcing bar (4) that the combined wall indoor is provided with; Formation is encorbelmented at the steel truss of encorbelmenting (1-5) in the combined wall outside; 4), the steel pole of the steel truss of encorbelmenting (1-5) is screw rod, directly with wooden frame with nut fixing 5), on concrete the bar planting installation steel pole of steel truss (1-5) of encorbelmenting.
7. the steel truss of encorbelmenting of a kind of body of wall technology according to claim 3; It is characterized in that; 1), the inner and the interior reinforcing bar of combined wall external protection of the steel truss of encorbelmenting (1-5) fix the said steel truss of encorbelmenting (1-5) can also have following mounting means, confirms according to the use needs:; 2), the inner of the steel truss of encorbelmenting (1-5) is positioned at the wire lath that external protection is plastered, the anchorage length requirement is satisfied in the inner of the steel truss of encorbelmenting (1-5); 3), the inner of the steel truss of encorbelmenting (1-5) is positioned at the wire lath that external protection is plastered, with inside and outside socket will encorbelment the inner of steel truss (1-5) of steel wire (9) and fix with the mutual drawknot of reinforcing bar (4) that the combined wall indoor is provided with; Formation is encorbelmented at the steel truss of encorbelmenting (1-5) in the combined wall outside; 4), the steel pole of the steel truss of encorbelmenting (1-5) is screw rod, directly and wooden frame fix with nut; 5), the steel pole of steel truss (1-5) that encorbelment is installed in bar planting on concrete.
8. the steel truss of encorbelmenting of a kind of body of wall technology according to claim 4; It is characterized in that; 1), the inner and the interior reinforcing bar of combined wall external protection of the steel truss of encorbelmenting (1-5) fix the said steel truss of encorbelmenting (1-5) can also have following mounting means, confirms according to the use needs:; 2), the inner of the steel truss of encorbelmenting (1-5) is positioned at the wire lath that external protection is plastered, the anchorage length requirement is satisfied in the inner of the steel truss of encorbelmenting (1-5); 3), the inner of the steel truss of encorbelmenting (1-5) is positioned at the wire lath that external protection is plastered, with inside and outside socket will encorbelment the inner of steel truss (1-5) of steel wire (9) and fix with the mutual drawknot of reinforcing bar (4) that the combined wall indoor is provided with; Formation is encorbelmented at the steel truss of encorbelmenting (1-5) in the combined wall outside; 4), the steel pole of the steel truss of encorbelmenting (1-5) is screw rod, directly with wooden frame with nut fixing 5), on concrete the bar planting installation steel pole of steel truss (1-5) of encorbelmenting.
9. according to claim 1, the technological steel truss of encorbelmenting of 2 or 5 described a kind of bodies of wall; It is characterized in that; On steel plate of installing in the steel pole of the steel truss of encorbelmenting (1-5) or outer end or the shaped steel shear-stable diagonal member spare (2) is installed, said shear-stable diagonal member spare (2) is reinforcing bar, steel plate or shaped steel; Said shear-stable diagonal member spare (2) is oblique setting, and shear-stable diagonal member spare (2) is connected with the steel truss of encorbelmenting (1-5), or shear-stable diagonal member spare (2) is connected with major structure of construction (1).
10. the steel truss of encorbelmenting of a kind of body of wall technology according to claim 3; It is characterized in that; On steel plate of installing in the steel pole of the steel truss of encorbelmenting (1-5) or outer end or the shaped steel shear-stable diagonal member spare (2) is installed, said shear-stable diagonal member spare (2) is reinforcing bar, steel plate or shaped steel; Said shear-stable diagonal member spare (2) is oblique setting, and shear-stable diagonal member spare (2) is connected with the steel truss of encorbelmenting (1-5), or shear-stable diagonal member spare (2) is connected with major structure of construction (1).
11. the steel truss of encorbelmenting of a kind of body of wall technology according to claim 4; It is characterized in that; On steel plate of installing in the steel pole of the steel truss of encorbelmenting (1-5) or outer end or the shaped steel shear-stable diagonal member spare (2) is installed, said shear-stable diagonal member spare (2) is reinforcing bar, steel plate or shaped steel; Said shear-stable diagonal member spare (2) is oblique setting, and shear-stable diagonal member spare (2) is connected with the steel truss of encorbelmenting (1-5), or shear-stable diagonal member spare (2) is connected with major structure of construction (1).
12. the steel truss of encorbelmenting according to claim 1,2,5,7,8,10 or 11 described a kind of body of wall technology is characterized in that, wire lath is installed in the steel truss of encorbelmenting (1-5) outer end.
13. the steel truss of encorbelmenting according to claim 1,2,5,7,8,10 or 11 described a kind of body of wall technology is characterized in that, wire lath is installed in the steel truss of encorbelmenting (1-5) outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101289053A CN102650148A (en) | 2011-02-23 | 2011-05-18 | Overhang steel truss of wall technology |
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| CN201110042781 | 2011-02-23 | ||
| CN201110042781.7 | 2011-02-23 | ||
| CN2011101289053A CN102650148A (en) | 2011-02-23 | 2011-05-18 | Overhang steel truss of wall technology |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201598820U (en) * | 2010-03-10 | 2010-10-06 | 中国建筑一局(集团)有限公司 | Single point suspension external hanging bracket |
| CN202125008U (en) * | 2011-02-23 | 2012-01-25 | 吴淑环 | Overhung steel truss adopting wall technology |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201598820U (en) * | 2010-03-10 | 2010-10-06 | 中国建筑一局(集团)有限公司 | Single point suspension external hanging bracket |
| CN202125008U (en) * | 2011-02-23 | 2012-01-25 | 吴淑环 | Overhung steel truss adopting wall technology |
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Application publication date: 20120829 |