CN202031218U - Large-span pre-stressed concrete beam slab for ventilation channel and ventilation channel system - Google Patents
Large-span pre-stressed concrete beam slab for ventilation channel and ventilation channel system Download PDFInfo
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- CN202031218U CN202031218U CN2010202395991U CN201020239599U CN202031218U CN 202031218 U CN202031218 U CN 202031218U CN 2010202395991 U CN2010202395991 U CN 2010202395991U CN 201020239599 U CN201020239599 U CN 201020239599U CN 202031218 U CN202031218 U CN 202031218U
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Abstract
The utility model relates to a large-span pre-stressed concrete beam slab and a sealing plate, which comprise a multi-T-box-type beam, a trough plate, a hollow single-T beam slab and a rectangular beam. The space between the two ribbed slabs of the trough plate and the two adjacent side surfaces or ribbed slabs of two adjacent beam slabs is sealed by the sealing plate. The ribbed slab of the beam slab is equipped with a plurality of ventilation channel through holes. The utility model also provides a ventilation channel system, which comprises a longitudinal ventilation channel and a transversal ventilation channel. The longitudinal ventilation channel is formed by the space sealed by the sealing plate between the two ribbed slabs of the trough plate and the two adjacent side surfaces or ribbed slabs of two adjacent beam slabs. The transversal ventilation channel is formed by the plurality of ventilation channel through holes arranged side by side and respectively communication with each other. According to the utility model, the space between the two ribbed slabs of beam slabs is utilized as the ventilation channel for industrial buildings, garages and the like without additional laying work, which is convenient in construction. Meanwhile, the frame height of buildings is also increased.
Description
Technical field
The present invention relates to a kind of prefabricated reinforced concrete bearing carrier, particularly relate to large-span prestressed concrete beam slab and the ventilation channel system of opening wind passage hole on a kind of rib.
Background technology
Hollow single T beam slab and many T box-girder are the prefabricated reinforced concrete bearing carriers of plate, beam combination, are made up of roomy panel and narrow and high rib.Its panel is horizontal load-carrying members, is again the pressure zone of vertical load-bearing rib.So T shape plate has good structural mechanical property, clear and definite power transmission level, succinct geometry is a kind of large span, big area coverage and both economical bearing carrier of can be made into.
At present, large span prestressed concrete hollow rectangle beam, many T box-girder, hollow single T beam slab, be used widely in industrial premises, bridge and other civilian construction structures as a kind of standard concrete prefabricated units, and fully manifest its superiority in the industrialization of construction industry field.Its design simplification, it is convenient to construct, and comprehensive cost is low, is accepted by users gradually.Propose the large span founded by the inventor thus
, big loadThe prestressed concrete trough slab also meets the tendency, and will occupy the vast market share.
But, the first, the vent passages facility in industrial premises, garage and other civilian construction structures is to be provided with separately at present, generally adopt glass fiber reinforced plastic member, metallic conduit or hang comb, butt up against blower fan then, like this, complex structure can produce cross influence between each facility; The second,
Trough slab, the double T span of slab is 30 meters to the maximum, U.S.'s maximum span is 27 meters, 30 meters spans are promptly made of light material, all are difficult to reach more large span.
Summary of the invention
The objective of the invention is at the ventilating duct facility complicated problems in present industrial premises, garage and other civilian construction structures, with double T plate, trough slab, can not surpass the more present situation more than the large span, a kind of prestress concrete girder slab and ventilation channel system as vent passages is provided, thereby simplification building structure, and can realize turning to flexibly of vent passages, and can alleviate deadweight, and increase load, realize more large span more economically.
Technical scheme of the present invention is as follows: a kind of large-span prestressed concrete beam slab as vent passages, ad-hoc location on the concrete beam plate rib of slab has one or several vent passages holes, can form transversal ventilation tunnel holes or water service pipe tunnel holes or energising spool, electric wire, automatic spray tube passage through hole, MICROCOMPUTER NETWORK line three-way hole, screw through-hole, can alleviate deadweight again, increase load, realize more large span economically; Also can open or open in addition and one or severally can not satisfy big air-conditioning requirement, but can satisfy less vent passages require and switch on spool, electric wire, automatic spray tube passage through hole, MICROCOMPUTER NETWORK line three-way hole, screw through-hole requirement.General civilian underground garage vent passages hole area on rib is 0.8m
2About, generally open 2 meters * 0.4 meter or 21 meter * 0.4 meter hole.
Further, in the vent passages hole, can also be provided with steel pipe or the plastic pipe that is complementary with its inwall; The shape pipe of described steel pipe or plastic pipe is consistent with described vent passages void shape.
Further, aforesaid large-span prestressed concrete beam slab, wherein, being shaped as of vent passages hole is fan-shaped, square, oval, trapezoidal, triangle, rectangle, rhombus, circle, parallelogram or regular polygon; Preferably up big and down small shape is beneficial to the concrete jolt ramming of vent passages hole bottom; Described hollow single T beam slab, hollow rectangle beam, many T box beam hollow is Double Circle, circle, ellipse, bielliptic(al) shape, double square, rectangle, the shape of dripping, fan-shaped, square, two square, trapezoidal, triangle, rhombus, parallelogram or regular polygon.
Further, aforesaid large-span prestressed concrete beam slab wherein, can also be provided with the steel pipe or the plastic pipe that are complementary with its inwall in ventilation channel through-holes.Low shearing section beyond the position of vent passages hole should be driveed in the shear area, two ends, and between below the wing plate pressure zone and the rib of slab prestress reinforcement district above four.
Further, aforesaid large-span prestressed concrete beam slab, wherein, the plate of various different size models and class of loading, if hole area arrives to a certain degree greatly, the rod member secondary stress influence that causes moment of flexure to cause is excessive, in the time of can't realizing, can add vertically being subjected to bar bending and being connected with the net sheet to be contained in the net sheet above the vent passages hole, the two layers of mesh sheet is connected by transverse reinforcement by the rib of slab size; The vent passages bore hole size makes the top, hole form the arch power transmission by control major and minor axis ratio.Perhaps add steel pipe in steel pipe or the thickening hole in the hole.
Further, aforesaid large-span prestressed concrete beam slab, wherein, if the vent passages hole is opened in that distance shearing resistance zone position is nearer can't realize the time, the buttress of various different size models it is calculated that and reduce single vent passages hole area gradually from the centre to two ends, stay bigger distance between borehole, and encrypt stirrup or add if thicken and steel pipe that hole is complementary.If when punching the concrete jolt ramming of effect length vent passages hole bottom, grouting is set on the loose tool of beam slab mould shakes and lead mouth; The fetal membrane material can be selected EPS, GRC or wooden model, plastic foil or rubber pattern in groups for use, should be linked to be general frame with vent passages hole fetal membrane and put among the beam-slab template again with the Double-level Reticulated sheet.
Further, aforesaid large-span prestressed concrete beam slab, its span is more than 9 meters.
Further, also be provided with sealing plate on the beam slab, the bottom, space that two floors of described sealing plate sealing trough slab are folded with facing two trough slabs, hollow single T beam slab or two ribs of hollow rectangle beam mutually; Or sealing beam slab two ends end hole or face the two ends port hole of two beam slabs mutually or the closed at both ends plate inwardly moves to position about hole edge, described sealing plate is steel plate, plank, plastic plate, aluminium-plastic panel or glass steel tile; Can be provided with raised or sunken structure on the sealing plate.
In a nearlyer step, described sealing plate is steel plate, plank, armored concrete slab, GRC plate, cement board, plastic plate, gypsum plank, aluminium-plastic panel or glass steel tile, can also be provided with raised or sunken structure on the sealing plate.
A kind of ventilation channel system that uses above-mentioned concrete beam plate, comprise some concrete beam plates that are arranged side by side, have plurality of ventilation channel through-holes on the floor of described concrete beam plate, described ventilation channel through-holes is connected successively respectively to be communicated with and is formed the transversal ventilation passage.
Further, aforesaid ventilation channel system, wherein, the transversal ventilation passage externally can dock blower fan or butt up against the shutter that ventilates and take shelter from rain; Be provided with the air chimney that series connection successively is communicated with the ventilation channel through-holes on the concrete beam plate in the transversal ventilation passage.
Further, described transversal ventilation passage comprise some between the trough slab both sides of the chest or between some hollow single T beam slabs or many T box-girder or hollow rectangle beam or the adjacent floor of trough slab around ventilation channel through-holes be provided with before, back shrouding and following shrouding, the front and back side of following shrouding is respectively with preceding, the bottom of back shrouding connects, before, the left and right sides side of back shrouding and following shrouding be connected with the trough slab both sides of the chest respectively or with two hollow single T beam slabs, many T box-girder, the hollow rectangle beam, trough slab two adjacent floors connect, before, the top of back shrouding respectively with hollow single T beam slab, the top board soffit of many T box-girder connects, be connected with trough slab inside ceiling panel soffit, with between two trough slabs and the top board soffit that the top construction is connected to form between two hollow rectangle beams be connected, preceding, back and the following passage that shrouding surrounded are connected successively and are communicated with hollow single T beam slab, many T box-girder, the ventilation channel through-holes that the hollow rectangle beam faces on the floor mutually forms the transversal ventilation passage; Or to leaving in some two trough slabs that face mutually that are arranged side by side or the seam of the rib between the hollow rectangle beam that vent passages directly connects two beam slab vent passages throughhole portions and as all the other ribs seam part concrete cementation of fissures except the part of vent passages, formation transversal ventilation passage.
Further, aforesaid ventilation channel system, comprise two the adjacent floors of two floors of the same trough slab of sealing or two hollow single T beam slabs that face mutually, many T box-girder, trough slab, hollow rectangle beam or the sealing plate of side institute clip space bottom, the folded space of two adjacent floors that seals two floors of same trough slab or the single T beam slab of adjacent hollow, trough slab, many T box-girder, hollow rectangle beam forms the longitudinal ventilation passage, and described sealing plate seals the bottom surface of above-mentioned longitudinal ventilation passage.Two trough slabs that face mutually or its top of hollow rectangle beam construction sealing promptly seal the top of above-mentioned longitudinal ventilation passage; And self substructure sealing, formation longitudinal ventilation passage naturally of same hollow single T plate, many T box-girder, rectangular beam.Comprise two the adjacent floors of two floors of the same trough slab of sealing or two hollow single T beam slabs that face mutually, many T box-girder, trough slab, hollow rectangle beam or the sealing plate of side institute clip space bottom, the folded space of two adjacent floors that seals two floors of same trough slab or the single T beam slab of adjacent hollow, trough slab, many T box-girder, hollow rectangle beam forms the longitudinal ventilation passage, and described sealing plate seals the bottom surface of above-mentioned longitudinal ventilation passage.Two trough slabs that face mutually or its top of hollow rectangle beam construction sealing promptly seal the top of above-mentioned longitudinal ventilation passage; And self substructure sealing, formation longitudinal ventilation passage naturally of same hollow single T plate, many T box-girder, rectangular beam.
Further, aforesaid ventilation channel system, some hollow rectangle beams are connected side by side successively with trough slab, and the ventilation channel through-holes on described hollow rectangle beam slab and the trough slab floor is connected successively respectively to be communicated with and is formed the transversal ventilation passage.
Further, blower fan hung forming the longitudinal ventilation passage between 2 beam slabs that face mutually or between the both sides of the chest of same trough slab, above-mentioned transversal ventilation passage is docked at the turning, forms ventilation channel system in length and breadth.
Further, aforesaid ventilation channel system wherein, is worn one or several little vent passages hole to satisfy the usefulness of wearing the screw furred ceiling or wearing electric wire on two end ribs of concrete beam plate.
Beneficial effect of the present invention is as follows: the present invention has plurality of ventilation channel through-holes on the floor of concrete beam plate, and series connection is communicated with formation transversal ventilation passage successively respectively, and adopts between sealing plate sealing trough slab, the both sides of the chest or two bottoms of facing mutually between trough slab, hollow single T beam slab, many T box-girder, adjacent two floors of hollow rectangle beam, space.With above structure as the vent passages in industrial premises, garage and other civilian construction structures, do not need to lay in addition independent air chimney, make the simple in structure of building ventilation system, easy construction, and can turn to flexibly, can also alleviate deadweight by increasing the roof truss height of building, increase load, realize more large span more economically.
Description of drawings
Fig. 1 is the cross sectional representation as the vent passages trough slab;
Fig. 2 makes a kind of structural representation of ventilation channel system when using hollow single T beam slab;
Fig. 3 is a kind of structural representation of making ventilation channel system when using many T box beam;
Fig. 4 be Fig. 2,3,5 from just down to just going up to view;
Fig. 5 is the cross sectional representation that has the trough slab formation of sealing plate;
Fig. 6 is a kind of structural representation of the ventilation channel system of use hollow rectangle beam;
Fig. 7 is for using a kind of structural representation of ventilation channel system of trough slab;
Fig. 8-1 is a prestressing force ramp rib of slab hole-opening schematic diagram;
Fig. 8-2 is a prestressed slab rib of slab hole-opening schematic diagram.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Open the concrete beam plate of wind passage hole on the rib provided by the present invention, on the concrete beam rib of slab, have one or several vent passages holes, can form transversal ventilation tunnel holes or water service pipe tunnel holes or energising spool, electric wire, automatic spray tube passage through hole, MICROCOMPUTER NETWORK line three-way hole, screw through-hole, can alleviate deadweight again, increase load, realize more large span economically.Being shaped as of vent passages hole is fan-shaped, square, oval, trapezoidal, triangle, rectangle, rhombus, circle, parallelogram or regular polygon; Preferably up big and down small shape is beneficial to the concrete jolt ramming of vent passages hole bottom.Low shearing section beyond the position of vent passages hole should be driveed in the shear area, two ends, the following and above position, rib of slab prestress reinforcement district of wing plate pressure zone is if presstressed reinforcing steel has the beam slab of curve stretch-draw can also avoid the curve stretched zone; Zone shearing resistance secure section length, wing plate pressure zone thickness are foundation with the result of calculation of carrying out according to different templates, should guarantee that near the shearing resistance section of bearing has enough shear resistances.
Shown in Fig. 8 (8-1 still be 8-2 still be 8-1 and 8-2), low shearing section 15, the top wing plate pressure zone of the position of the vent passages hole of opening on the floor of described hollow single T beam slab or many T box-girder 12 beyond should be in the shear area, two ends answered 16 below and in advance
Power reinforcing bar district is more than 17, more than if the presstressed reinforcing steel of beam slab is that curve stretch-draw also should be avoided prestressed reinforcement curve stretched zone 18, the rubber type fetal membrane is set on vent passages hole 2 on fetal membrane, continues to employ grouting mouthfuls 19.Vent passages hole rib of slab can be taked conventional strengthening measure, comprise and strengthen hole reinforcing bar rib of slab, thickening all around or improve concrete grade, or add if thicken the steel pipe that is complementary with hole, to improve the bending resistance on vent passages hole rib of slab plane, slacken the cross section to punching and give reinforcement.The plate of various different size models and class of loading, area arrives to a certain degree greatly if punch, the rod member secondary stress influence that causes moment of flexure to cause is excessive, in the time of can't realizing, can add vertically being subjected to bar bending and being connected with the net sheet to be contained in the net sheet above the vent passages hole, the two layers of mesh sheet is connected by transverse reinforcement by the rib of slab size; The vent passages bore hole size makes the top, hole form the arch power transmission by control major and minor axis ratio.If the vent passages hole is opened in that distance shearing resistance zone position is nearer can't realize the time, the buttress of various different size models it is calculated that and reduce single vent passages hole area gradually from the centre to two ends, stay bigger distance between borehole, and encrypt stirrup or add if thicken and steel pipe that hole is complementary.If when punching the concrete jolt ramming of effect length vent passages hole bottom, grouting is set on the loose tool of hollow single T beam slab mould shakes and lead mouth; The fetal membrane material can be selected EPS, GRC or wooden model, plastic foil or rubber pattern in groups for use, should be linked to be general frame with vent passages hole fetal membrane and put among the double T template die plate again with the Double-level Reticulated sheet.
As shown in Figure 1, be provided with the steel pipe or the plastic pipe 6 that are complementary with its inwall in the ventilation channel through-holes of on the floor of trough slab 1, offering 5.
As shown in Figure 1, on the basis of embodiment, also be provided with sealing plate 4 on the trough slab 1, if suspension hook 3 and securing member 2, described securing member 2 is separately fixed at suspension hook 3 on the bottom surface of two floors of trough slab 1, described sealing plate 4 be fixed on the suspension hook 3 and the soffit of two floors of sealing plate 4 and trough slab 1 between seal, sealing is down between the beam slab top and both sides of the chest or side of shrouding two ends and beam slab top or construction formation again.During construction, securing member 2 is fixed on the built-in fitting on the trough slab 1 floor bottom surface, then sealing plate 4 is fixed on the bottom surface of trough slab 1 floor, at last the gap between the bottom surface of sealing plate 4 and trough slab 1 floor is sealed, and sealing down the shrouding two ends or and beam slab top or construction the beam slab top and both sides of the chest or side that form between, also can face mutually between two trough slabs seam except that staying interconnection, be fixed therein with the concrete cementation of fissures and the expansion double-screw bolt, with the both sides bolt sealing plate 4 is fixed on rib at the bottom of.And the sealing of many T box-girder and hollow single T beam slab, rectangular beam self structure is faced the plate two-phase mutually and is faced side or the folded space sealing of rib, and sealing both ends or sealed at both ends plate inwardly move to position, hole both sides again.
Described sealing plate 4 can be steel plate, plank, plastic plate, aluminium-plastic panel or glass steel tile; Can be provided with raised or sunken structure on the sealing plate.
When adopting steel plate, also can directly steel plate be welded on the built-in fitting on hollow single T beam slab 1 floor, or use the bolt sealing plate as sealing plate.
The present invention also provides a kind of ventilation channel system, shown in Fig. 2,3,7, Fig. 2 is with some a kind of vent passages schematic diagrames that face hollow single T beam slab of arrangement mutually, Fig. 3 a kind of vent passages schematic diagram of the many T box-girder that is parallel arranged, Fig. 7 is for using some trough slabs that face arrangement mutually, a kind of vent passages schematic diagram.Described ventilation channel system comprises some above-mentioned hollow single T beam slab or trough slab or many T box-girder 1 and some air chimneys as vent passages, the ventilation channel through-holes 5 that air chimney is communicated with respectively on trough slab or hollow single T beam or the many T box-shaped beam slab adjacent rib plate successively forms transversal ventilation passage 20, and the transversal ventilation passage externally can dock blower fan or butt up against the shutter that ventilates and take shelter from rain.Described transversal ventilation passage 20 also can be as Fig. 4, Fig. 3, Fig. 2, shown in Figure 7, by preceding, the back reaches shrouding 13 down, 14,12 are provided with around ventilation channel through-holes 5 respectively, the front and back side of following shrouding 12 is respectively with preceding, back shrouding 13,14 bottom connects, before, back shrouding 13,14 are connected with 1 liang of adjacent floor of beam slab respectively with the left and right sides side of following shrouding 12, before, back shrouding 13,14 top is connected with the top board soffit of hollow single T beam slab or trough slab or many T box-girder 1 respectively or the soffit that top forms between sealing two beam slabs of constructing connects, before, back and following shrouding 13,14 and 12 are surrounded the passage that the forms ventilation channel through-holes 5 that is communicated with on the 1 adjacent floor of connecting successively and form the transversal ventilation passages, and following shrouding 12 also can flush or flush with middle lower bottom part with at the bottom of several hollow single T beams or the many T box-shaped beam slab.Have between the sealing plate sealing trough slab both sides of the chest on the beam slab or the formation of the space between 2 sides of 2 beam slabs that face mutually or floor longitudinal ventilation passage 7,8.Like this, just constituted the ventilation channel system in industrial premises, garage and other civilian construction structures.
The present invention also invents another kind of ventilation channel system as shown in Figure 6, leaves vent passages through hole 2 on the rib of some hollow rectangle beams 1 that are arranged side by side; Face mutually between the rib two of two hollow rectangle beams 1 that face mutually and to leave vent passages through hole 4 with the vent passages through hole 2 on two hollow rectangle beams 1 of direct connection in the rib seam, and self is as outside the vent passages part, and remainder rib seam has all formed the transversal ventilation channel system with the concrete cementation of fissures.And hollow rectangle beam self substructure sealing nature forms longitudinal ventilation passage 7.
A kind of ventilation channel system, as shown in Figure 7, two of the trough slab 1 transversal ventilation passage and that arrange of having that some usefulness are opened above that the wind tunnel holes forms with sealing face mutually and leave vent passages through hole 7 facing mutually of plate in the rib seam and face plate mutually with two of direct connections and face vent passages through hole 5 on the rib mutually, and as except the vent passages part, all the other ribs seams be between the rib seam around the vent passages through hole all with concrete cementation of fissures formation transversal ventilation passage.And sealing plate sealing trough slab both sides of the chest or 22 of trough slabs face rib institute clip space formation longitudinal ventilation passage 8 mutually.
In addition, the present invention can also adopt by some hollow rectangle beams and be connected successively side by side with trough slab, forms many group longitudinal ventilation passages.Ventilation channel through-holes on described hollow rectangle beam and the trough slab floor is connected successively respectively to be communicated with and is formed the transversal ventilation passage.Wear one or several little vent passages hole on two end ribs of trough slab or hollow rectangle beam to satisfy the usefulness of wearing the screw furred ceiling or wearing electric wire.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, all falls within protection scope of the present invention.
Claims (17)
1. large-span prestressed concrete beam slab as vent passages, comprise the hollow single T beam slab of large span prestressed concrete and many T of large span prestressed concrete box-girder, large span prestressed concrete trough slab and large span prestressed concrete hollow rectangle beam, it is characterized in that: also comprise many T box beam, trough slab, hollow single T beam slab, rectangular beam and sealing plate, rib or side institute clip space are faced mutually with two the many T that face mutually box beam, trough slab, hollow single T beam slab, 2 of rectangular beams in the folded space of described sealing plate sealing trough slab both sides of the chest; Having one or several areas on the large-span prestressed concrete beam slab rib arrives greatly and can satisfy size as the vent passages hole of underground garage air-conditioning requirement, can form transversal ventilation tunnel holes or water service pipe passage or energising spool, electric wire, automatic spray tube passage through hole, MICROCOMPUTER NETWORK line three-way hole, screw through-hole, can alleviate deadweight again, increase load, realize more large span economically; Or also can open simultaneously one or several areas and can not satisfy size as the underground garage air-conditioning requirement but can satisfy the tunnel holes of less vent passages or water service pipe passage or switch on spool, electric wire, automatic spray pipe, microcomputer netting twine, screw, or between two prestressed reinforcements, or several apertures are opened to satisfy the usefulness of wearing screw, electric wire, netting twine in presstressed reinforcing steel top, top.。
2. large-span prestressed concrete beam slab as claimed in claim 1 is characterized in that: can also be provided with the steel pipe or the plastic pipe that are complementary with its inwall in the vent passages hole; The shape pipe of described steel pipe or plastic pipe is consistent with described vent passages void shape.
3. large-span prestressed concrete beam slab as claimed in claim 1 is characterized in that: the vent passages hole be shaped as the shape of dripping, fan-shaped, square, oval, trapezoidal, triangle, rectangle, rhombus, circle, parallelogram or regular polygon; Preferably up big and down small shape is beneficial to the concrete jolt ramming of vent passages hole bottom; Described hollow single T beam slab, hollow rectangle beam, many T box beam hollow is Double Circle, circle, ellipse, bielliptic(al) shape, double square, rectangle, the shape of dripping, fan-shaped, square, two square, trapezoidal, triangle, rhombus, parallelogram or regular polygon.
4. as claim 1 or 3 described large-span prestressed concrete beam slabs, it is characterized in that: the low shearing section beyond drive in the shear area, two ends the position of vent passages hole, below the wing plate pressure zone and more than the rib of slab prestress reinforcement district between four.
5. large-span prestressed concrete beam slab as claimed in claim 4, it is characterized in that: the beam slab of various different size models and class of loading, if hole area arrives to a certain degree greatly, the rod member secondary stress influence that causes moment of flexure to cause is excessive, in the time of can't realizing, can add vertically being subjected to bar bending and being connected with the net sheet to be contained in the net sheet above the vent passages hole, the two layers of mesh sheet is connected by transverse reinforcement by the rib of slab size; The vent passages bore hole size makes the top, hole form the arch power transmission by control major and minor axis ratio; Or add around the hole if thicken the steel pipe that is complementary with hole.
6. large-span prestressed concrete beam slab as claimed in claim 4, it is characterized in that: if the vent passages hole is opened in that distance shearing resistance zone position is nearer can't realize the time, the beam slab of various different size models reduces single vent passages hole area gradually according to calculating from the centre to two ends, stay bigger distance between borehole, and encrypt stirrup; Or add if thicken the steel pipe that is complementary with hole.
7. large-span prestressed concrete beam slab as claimed in claim 4 is characterized in that: being in the milk shakes leads mouth if the vent passages hole lengths when influence the concrete jolt ramming of vent passages hole bottom, is provided with on the loose tool of beam slab mould; The fetal membrane material can be selected EPS, GRC or wooden model, plastic foil or rubber pattern in groups for use, should be linked to be general frame with vent passages hole fetal membrane and put among the beam-slab template again with the Double-level Reticulated sheet.
8. large-span prestressed concrete beam slab according to claim 1, it is characterized in that: its span is more than 9 meters.
9. large-span prestressed concrete beam slab as claimed in claim 1, it is characterized in that: also have sealing plate on the beam slab, sealing plate can seal trough slab bottom or face the bottom that two beam slabs face rib or side institute clip space mutually mutually, or sealing beam slab two ends end hole or face the two ends port hole of two beam slabs mutually or the closed at both ends plate inwardly moves to position about hole edge.
10. large-span prestressed concrete beam slab as claimed in claim 9, it is characterized in that: described sealing plate is steel plate, plank, armored concrete slab, GRC plate, cement board, plastic plate, gypsum plank, aluminium-plastic panel or glass steel tile, can also be provided with raised or sunken structure on the sealing plate.
11. ventilation channel system, it is characterized in that: comprise some trough slabs that are arranged side by side or hollow single T beam slab or many T box-girder or hollow rectangle beam, have plurality of ventilation channel through-holes on the floor of described four kinds of beam slabs, described ventilation channel through-holes is connected successively respectively to be communicated with and is formed the transversal ventilation passage.
12. ventilation channel system as claimed in claim 11 is characterized in that: the transversal ventilation passage externally docks blower fan or butts up against the shutter that ventilates and take shelter from rain.
13. ventilation channel system as claimed in claim 11 is characterized in that: be provided with the air chimney that series connection successively is communicated with the ventilation channel through-holes on the prestress concrete girder slab in the described transversal ventilation passage.
14. as claim 11 or 13 described ventilation channel systems, it is characterized in that: described transversal ventilation passage comprise some between the trough slab both sides of the chest or between some hollow single T beam slabs or many T box-girder or hollow rectangle beam or the adjacent floor of trough slab around ventilation channel through-holes be provided with before, back shrouding and following shrouding, the front and back side of following shrouding is respectively with preceding, the bottom of back shrouding connects, before, the left and right sides side of back shrouding and following shrouding be connected with the trough slab both sides of the chest respectively or with two hollow single T beam slabs, many T box-girder, the hollow rectangle beam, trough slab two adjacent floors connect, before, the top of back shrouding respectively with hollow single T beam slab, the top board soffit of many T box-girder connects, be connected with trough slab inside ceiling panel soffit, with between two trough slabs and the top board soffit that the top construction is connected to form between two hollow rectangle beams be connected, preceding, back and the following passage that shrouding surrounded are connected successively and are communicated with hollow single T beam slab, many T box-girder, the ventilation channel through-holes that the hollow rectangle beam faces on the floor mutually forms the transversal ventilation passage; Or to leaving in some two trough slabs that face mutually that are arranged side by side or the seam of the rib between the hollow rectangle beam that vent passages directly connects two beam slab vent passages throughhole portions and as all the other ribs seam part concrete cementation of fissures except the part of vent passages, formation transversal ventilation passage.
15. ventilation channel system as claimed in claim 14, it is characterized in that: comprise two the adjacent floors of two floors of the same trough slab of sealing or two hollow single T beam slabs that face mutually, many T box-girder, trough slab, hollow rectangle beam or the sealing plate of side institute clip space bottom, the folded space of two adjacent floors that seals two floors of same trough slab or the single T beam slab of adjacent hollow, trough slab, many T box-girder, hollow rectangle beam forms the longitudinal ventilation passage, and described sealing plate seals the bottom surface of above-mentioned longitudinal ventilation passage.Two trough slabs that face mutually or its top of hollow rectangle beam construction sealing promptly seal the top of above-mentioned longitudinal ventilation passage; And self substructure sealing, formation longitudinal ventilation passage naturally of same hollow single T plate, many T box-girder, rectangular beam.
16. as claim 11 or 12 described ventilation channel systems, it is characterized in that: some hollow rectangle beams are connected side by side successively with trough slab, and the ventilation channel through-holes on described hollow rectangle beam slab and the trough slab floor is connected successively respectively to be communicated with and formed the transversal ventilation passage.
17. a ventilation channel system is characterized in that: blower fan hung forming the longitudinal ventilation passage between 2 beam slabs that face mutually or between the both sides of the chest of same trough slab, above-mentioned transversal ventilation passage is docked at the turning, forms ventilation channel system in length and breadth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202395991U CN202031218U (en) | 2010-03-19 | 2010-06-18 | Large-span pre-stressed concrete beam slab for ventilation channel and ventilation channel system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020166369.7 | 2010-03-19 | ||
| CN201020166369 | 2010-03-19 | ||
| CN2010202395991U CN202031218U (en) | 2010-03-19 | 2010-06-18 | Large-span pre-stressed concrete beam slab for ventilation channel and ventilation channel system |
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| CN202031218U true CN202031218U (en) | 2011-11-09 |
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| CN2010202395991U Expired - Fee Related CN202031218U (en) | 2010-03-19 | 2010-06-18 | Large-span pre-stressed concrete beam slab for ventilation channel and ventilation channel system |
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| CN (1) | CN202031218U (en) |
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