CN104088481A - Sandwich composite glass fiber reinforced plastic plenum chamber for auditorium and construction method thereof - Google Patents
Sandwich composite glass fiber reinforced plastic plenum chamber for auditorium and construction method thereof Download PDFInfo
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- CN104088481A CN104088481A CN201410342775.7A CN201410342775A CN104088481A CN 104088481 A CN104088481 A CN 104088481A CN 201410342775 A CN201410342775 A CN 201410342775A CN 104088481 A CN104088481 A CN 104088481A
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Abstract
The invention provides a sandwich composite glass fiber reinforced plastic plenum chamber for an auditorium and a construction method of the sandwich composite glass fiber reinforced plastic plenum chamber for the auditorium. The sandwich composite glass fiber reinforced plastic plenum chamber for the auditorium is arranged under a seat area of the auditorium and comprises a floor slab and a box body below the floor slab. The floor slab is used as a box body top cover and connected with the box body. An air outlet is formed under each seat. The box body comprises a bottom face plate and side face plates. The bottom face plate is composed of bottom face plate strips and a horizontal keel frame. Each bottom face plate strip is formed by connecting multiple sandwich glass fiber reinforced plastic composite boards in an end-to-end mode one by one in a flanged mode. The horizontal keel frame is formed by fixing transverse main keels and longitudinal auxiliary keels in a crossed mode. Each bottom face plate strip is embedded between every two adjacent rows of transverse main keels. The transverse main keels are connected with a floor slab embedded piece through a suspender. The edges of the side face plates and the edge of the bottom face plate are connected through flanges. The tops of the side face plates are connected with the floor slab. The sandwich composite glass fiber reinforced plastic plenum chamber for the auditorium is high in overall rigidity, high in bearing capacity, high in adaptability, resistant to fire and corrosion, and capable of isolating sound and absorbing shock. In addition, the technology is simple, the assembly speed is high, later-period overhauling is convenient, the material cost and the labor cost are greatly reduced, and the construction period is shortened.
Description
Technical field
The present invention relates to a kind of ventilation plenum chamber, relate in particular to a kind of composite glass fiber reinforced plenum chamber of sandwich and construction method thereof being applicable in the building auditorium such as cinema, assembly hall.
Background technology
China's economy is constantly flourish in recent years, and the income level of entire society constantly increases, and the people's culture life demand improves gradually, and this has promoted the development of China's cultural undertakings, the building of a lot of arenas character that all parts of the country are newly-built.At present, in order to improve cinema, the indoor air-supply quality in assembly hall, bottom at each seat arranges air intake, on the concrete floor of fixed seating, reserving hole is installed ajutage, and the plenum chamber of double-decker floor realization or the hexahedron plenum chamber that galvanized sheet iron is made are installed below floor.Take double-decker floor to realize plenum chamber, plenum chamber takes up space greatly, dead load large, floor below is prone to condensed water, difficulty of construction is high, long construction period; Realize plenum chamber if adopt the metal sheets such as corrosion resistant plate, in installation process, need on-the-spot splicing, occur a large amount of splicing seams, workload greatly and Site Welding fire hazardous, fire prevention, anticorrosion, sound insulation, damping performance are poor, corrosion resistant plate needs specialize insulation layer, and steel plate easily produces resonance under the effect of blast; Moreover, because personnel can not enter plenum chamber, later stage garbage-cleaning or structural maintenance are all relatively wasted time and energy.Therefore, a kind of ability of current urgent need overcomes the plenum chamber of double-decker floor realization and the novel plenum chamber of galvanized sheet iron hexahedron plenum chamber shortcoming simultaneously.
Summary of the invention
The object of the invention is to provide the composite glass fiber reinforced plenum chamber of a kind of auditorium sandwich and construction method thereof, and in solution prior art, double-decker floor plenum chamber takes up space greatly, dead load is large, floor below is prone to condensed water, difficulty of construction is high and the technical problem of long construction period; Overcome simultaneously in prior art, in galvanized sheet iron hexahedron plenum chamber installation process, need on-the-spot splicing, occur the large and Site Welding fire hazardous of a large amount of splicing seams, workload, fire retardant anticorrosion sound insulation damping performance is poor, corrosion resistant plate needs specialize insulation layer, steel plate under the effect of blast, easily to produce resonance and because personnel can not enter plenum chamber, later stage garbage-cleaning or structural maintenance than more laborious technical problem.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
The composite glass fiber reinforced plenum chamber of a kind of auditorium's sandwich, be located at seat region, auditorium under, comprise floor and be located at the casing of soffit, wherein on floor, have air outlet, on casing, have at least one air intake, it is characterized in that: described casing comprises bottom panel and side panel;
Described bottom panel is made up of bottom surface lath and horizontal keel shoe, described bottom surface lath is formed by connecting by the Sandwich glass steel composite board head and the tail flange of one one, described horizontal keel shoe is intersected and is formed by fixedly connecting by horizontal main joist and longitudinal secondary joist, wherein longitudinally secondary joist couples together all horizontal main joists, laterally main joist is connected with built-in fitting in floor on floor by suspension rod again, described horizontal main joist is H shaped steel, i iron or is welded back-to-back by two channel-section steels, and the lath intercalation of described bottom surface is between the adjacent horizontal main joist of two rows;
Described side panel is formed by connecting by the Sandwich glass steel composite board head and the tail flange of one one, and the bottom of side panel is connected with the bottom surface lath flange of bottom panel edge, and the top of side panel is connected with floor by the channel-section steel that binds being anchored on soffit.
As the preferred technical solution of the present invention, can say the side panel of side wall as plenum chamber at the marginal position that has side wall, side wall is fixedly connected with by the receipts limit channel-section steel on side wall with bottom panel.
As the preferred technical solution of the present invention, the core of described Sandwich glass steel composite board is superfine glass silk flosssilk wadding, rock wool, perlite, inorfil or STP warming plate.
As the preferred technical solution of the present invention, described suspension rod and longitudinally secondary joist are angle steel, square steel, channel-section steel, band steel or the round steel of galvanizing processing.
As the preferred technical solution of the present invention, on described suspension rod, laterally main joist and longitudinal secondary joist, all scribble fireproof paint.
As the preferred technical solution of the present invention, the upper surface of described horizontal main joist is glued with the anti-condensation cover plate of one deck sandwich composite fiberglass material.
The construction method that the invention still further relates to the composite glass fiber reinforced plenum chamber of a kind of above-mentioned auditorium's sandwich, is characterized in that: comprise the steps:
Step 1, location unwrapping wire: referenced drawing is determined the coverage of plenum chamber, determines its axial location, determines the box height of plenum chamber according to designing requirement, according to the absolute altitude at the bottom of air output and wind speed requirement adjustment plenum chamber;
Step 2, material are prepared: comprise the preparation of spine material and the preparation of cabinet panel material, as scale making, the galvanizing processing of spine material etc. of Sandwich glass steel composite board;
Step 3, welding suspension rod: the built-in fitting in the top of suspension rod and floor is carried out to two-sided welding;
Step 4, weld horizontal main joist: at the horizontal main joist of the bottom of suspension rod vertical welding, form horizontal main joist face frame by some parallel single horizontal main joists;
Step 5, installation bottom panel and side panel: the edge, both sides of Sandwich glass steel composite board is embedded respectively in the notch of the horizontal main joist in both sides, between adjacent two panels, adopt flange to be connected to form bottom surface lath in the horizontal; The bottom of side panel is carried out flange with the bottom surface lath of bottom panel edge and is connected, and the top of side panel is connected with floor;
Step 6, joint seal processing: in the connecting sewing of chimeric gap, plenum chamber edge and the side wall of cabinet panel and channel-section steel or flange, filling with sealant material seals, simultaneously for ensureing the sealing of flange connections, in the middle of flange, establish fire seal, make plenum chamber integral sealing tight;
Step 7, weld longitudinal secondary joist: on the bottom surface of horizontal main joist channel-section steel, weld longitudinal secondary joist, longitudinally secondary joist and the horizontal orthogonal formation groined type of main joist face frame;
Rustproof paint is cleared up and brushed to step 8, solder joint: all solder joints are removed to welding slag, at solder joint brushing at two sides rustproof paint;
Step 9, light leak test: illuminate all sites in plenum chamber at night with lamp, access door light is sheltered from, keep all light outside plenum chamber to close, check the light leak situation of plenum chamber seam, if there is light leak to overhaul in time;
Step 10, access door shutoff: after complete liquidation inside plenum chamber is clean, use the sheet material sealing sizing material of same material to carry out shutoff to access door, sealant sealing is used in gap, outside again, is convenient to like this secondary maintenance and uses;
Step 11, air-supply detect: after plenum chamber and interior decoration all complete, start air-conditioning unit, for under-seat, air quantity detector detects wind speed size, so far, constructs complete.
As the present invention program's further refinement, in described step 3, the concrete operation method that horizontal main joist is set is:
Step a, at one one horizontal main joist parallel to each other of the bottom of suspension rod transverse weld, form the horizontal main joist support body of level;
Step b, on the marginal position body of wall that has side wall, limit channel-section steel is received in anchoring: single channel-section steel is anchored on side wall with expansion bolt, outwardly, height adapts with contiguous horizontal main joist height the notch of channel-section steel;
Step c, the channel-section steel that binds is set on the floor of the marginal position without side wall: with expansion bolt, single channel-section steel is anchored on the soffit of top, edge, channel-section steel notch down, for intercalation side panel.
As the optimal technical scheme of construction method of the present invention, in described step 8, for improving plenum chamber fire endurance, will on the horizontal main joist exposing and longitudinal secondary joist, carry out brushing fireproof paint.
As the further optimal technical scheme of construction method of the present invention, in described step 8, for avoiding horizontal main joist channel-section steel place to occur cold bridge phenomenon generation dewfall, between the upper surface of horizontal main joist, suspension rod, cover the composite glass fiber reinforced anti-condensation cover plate of sandwich, the width of anti-condensation cover plate equates with horizontal main joist width, and the horizontal main joist that the biside plate of anti-condensation cover plate extends bottom clamping achieves a fixed connection.
Compared with prior art, technical advantage of the present invention is:
1 integral rigidity is good, weight capacity is strong
High-intensity sandwich compound GRP sheet and keel structure make plenum chamber bulk strength high, the rear maintainer that constructed can directly enter plenum chamber and overhaul, be convenient to later stage garbage-cleaning or structural maintenance, solve later stage garbage-cleaning or overhauled difficult technical problem, the requirement of strength of sheet material self and the load of later stage erection equipment and architectural surface are not only considered, also consider that upper people of later stage clears up the load of maintenance, in addition, the bottom corresponding with plenum chamber suspension rod can provide suspension centre for other equipment;
2 strong adaptabilities
Plenum chamber adopts sandwich composite glass fiber reinforced as cabinet panel, not only deadweight is lighter, and self sheet material only has 50mm thick, take up room little, the size of plenum chamber sheet material can be controlled flexibly, simple installation, not only meet the required moulding of decorative effect, can also make full use of the ceiling void and coordinate with keel, meet under the requirement of ventilation section area, do any moulding;
3 fire prevention, anticorrosion, sound insulation, damping
Sandwich is composite glass fiber reinforced can well realize fire prevention A level, all brushing fireproof paints of main longitudinal secondary joist, and plenum chamber entirety fire-protection rating is A level; Sandwich compound GRP is anticorrosive strong, and good endurance has been captured a difficult problem that uses metal material easily to get rusty; Composite glass fiber reinforced sound insulation and the damping effect of having concurrently of sandwich, belongs to green product, pollution-free;
4 costs are low, easy construction
Integral construction is quick, and keel installation and cabinet panel attended operation are convenient, the composite glass fiber reinforced good seal of monolithic sandwich, and every is independent subject, and factory's scale processing is without on-site cutting, simple to operate;
5 without cold bridge problem
Laterally having increased anti-condensation cover plate above main joist, can reduce condensed water and form; Disposable assembled moulding, has solved the cold bridge problem of keel, and Sandwich glass steel composite board is without the problem of considering again secondary insulation;
6 good airproof performances
In the connecting sewing of chimeric gap, plenum chamber edge and the side wall of cabinet panel and channel-section steel or flange, filling with sealant material seals, and for ensureing the sealing of flange connections, in the middle of flange, establishes fire seal simultaneously, makes plenum chamber integral sealing tight;
To sum up, integral rigidity of the present invention is good, weight capacity is strong, strong adaptability, and fire prevention, anticorrosion, sound insulation, damping, technique is simple, assembled quick, and later stage maintenance is convenient, has greatly saved material and cost of labor, has shortened construction period.
Brief description of the drawings
Fig. 1 is the overall appearance structural representation of the plenum chamber of auditorium in the embodiment the present invention relates to;
Fig. 2 is the cross-sectional view of A-A section in Fig. 1;
Fig. 3 is laterally main joist 42 and the longitudinally distribution schematic diagram of secondary joist 43 on the bottom panel of casing 3;
Fig. 4 is the syndeton schematic diagram of bottom panel 4 and floor 2;
Fig. 5 is the syndeton schematic diagram between adjacent isles bottom panel on B-B section in Fig. 4;
Fig. 6 is the syndeton schematic diagram of horizontal main joist 42 and anti-condensation cover plate 12;
Fig. 7 does not have the marginal position side panel 7 of side wall and the syndeton schematic diagram of bottom panel 4;
Fig. 8 and Fig. 9 are the syndeton schematic diagrames of the marginal position side wall and the bottom panel 4 during using side wall 15 as casing side panel that have a side wall, wherein Fig. 8 is and the syndeton schematic diagram of side wall and bottom panel 4 in a lateral direction, and Fig. 9 is the syndeton schematic diagram of side wall and bottom panel 4 on longitudinal direction.
Reference numeral: 1-seat, 2-floor, 3-casing, 4-bottom panel, 41-bottom surface lath, the horizontal main joist of 42-, the longitudinal secondary joist of 43-, 5-air intake, 6-air outlet, 7-side panel, 8-suspension rod, 9-fire proof seal rubber cushion, 10-condensation water collection mouth, 11-sealing sizing material, 12-anti-condensation cover plate, 13-receive limit channel-section steel, the 14-built-in fitting in channel-section steel, 15-side wall, 16-sealing sizing material, 17-floor that binds.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, content of the present invention is further explained, the construction part of the plenum chamber that the embodiment of the present invention relates to is under one deck and two layers of auditorium's seat, the length of the plenum chamber under one deck auditorium is 32.9m, and wide is 24.45m, and the gross area is 804.405m
2, plenum chamber smallest cross-sectional height is 450mm, for realizing the decorative ceiling moulding of floor below, plenum chamber does 4 ladder breaks; The plenum chamber length of two layers of auditorium's floor is 32.9m, and wide is 21.6m, and area is about 445 m
2, plenum chamber smallest cross-sectional height is 400mm, for ensureing first floor furred ceiling absolute altitude, plenum chamber need do 5 ladder breaks.
The Main Construction Technique difficult point relating to is as follows: make Sandwich glass steel composite board reach fire prevention A level; It is convenient when ensureing higher static pressure boxboard machining accuracy, to make to install; Higher Sandwich glass steel composite board intensity, can enter people and clear up rubbish or maintenance in the later stage; Gap sealing processing between static pressure boxboard and plate; The processing of the horizontal main joist cold bridge of plenum chamber; Solve the processing of condensed water in plenum chamber.The present invention adopts Sandwich glass steel composite board to carry out Assembling, at the square one-tenth Integral static pressure of auditorium's underfloor case, then ajutage is communicated with plenum chamber, by the valve of adjusting seat trunnion, each position air intake air quantity is evenly sent.
As depicted in figs. 1 and 2, the composite glass fiber reinforced plenum chamber of a kind of auditorium's sandwich, be located at seat region, auditorium under, comprise floor 2 and the casing 3 that is located at soffit, wherein on floor 2, have air outlet 6, on casing, have at least one air intake 5, it is characterized in that: described casing 3 comprises bottom panel 4 and side panel 7; Described bottom panel 4 is made up of bottom surface lath 41 and horizontal keel shoe, described bottom surface lath 41 is formed by connecting by the Sandwich glass steel composite board head and the tail flange of one one, and the core of described Sandwich glass steel composite board can be superfine glass silk flosssilk wadding, rock wool, perlite, inorfil or STP warming plate; Described horizontal keel shoe is intersected and is formed by fixedly connecting by horizontal main joist 42 and longitudinal secondary joist 43.Taking the direction of rows of seats as laterally, front and back seat in column is longitudinal.As shown in Figure 3, spacing between adjacent two horizontal main joists 42 is 1～1.2m, the spacing of adjacent longitudinal secondary joist 43 is not more than 1.2m, wherein longitudinally secondary joist 43 couples together all horizontal main joists 42, laterally main joist 42 is connected with built-in fitting 17 in floor on floor by suspension rod 8 again, described horizontal main joist 42 is H shaped steel, i iron or be welded back-to-back by two channel-section steels, as Fig. 4 and Fig. 6, horizontal main joist 42 in the present embodiment is welding back-to-back, two galvanizing channel-section steels of left and right opening, the groove width of channel-section steel is that the Sandwich glass steel composite board of 37mm and 35mm adapts, between the upper surface of described horizontal main joist 42, suspension rod 8, be provided with the composite glass fiber reinforced anti-condensation cover plate 12 of sandwich, achieve a fixed connection as the biside plate of Fig. 6 anti-condensation cover plate 12 extends the horizontal main joist 42 of clamping bottom, described longitudinal secondary joist 43 is welded on the bottom surface of channel-section steel, lath 41 intercalations of described bottom surface are between the adjacent horizontal main joist 42 of two rows, suspension rod 8 and longitudinally secondary joist 43 can be angle steel, square steel, channel-section steel, band steel or the round steel of galvanizing processing, on suspension rod 8, laterally main joist 42 and longitudinal secondary joist 43, all scribble fireproof paint.
Described side panel 7 is divided into two kinds, one as shown in Figure 7, Fig. 7 does not have the marginal position side panel 7 of side wall and the syndeton schematic diagram of bottom panel 4, described side panel 7 is formed by connecting by the Sandwich glass steel composite board head and the tail flange of one one, and the bottom of side panel 7 is connected with bottom surface lath 41 flanges of bottom panel 4 edges, the top of side panel 7 is connected with floor 2 by the channel-section steel 14 that binds being anchored on soffit; Another kind is as Fig. 8 and Fig. 9, there is the marginal position of side wall using side wall 15 as casing side panel, wherein Fig. 8 is the side wall at edge and the syndeton schematic diagram of bottom panel 4 vertical with horizontal main joist bearing of trend, Fig. 9 is the side wall at horizontal main joist bearing of trend edge and the syndeton schematic diagram of bottom panel 4, wherein at the marginal position side wall 15 that has a side wall as the side panel of plenum chamber, anchoring one opening receipts limit channel-section steel 13 outwardly on side wall, channel-section steel notch is embedded in bottom panel; Be the vertical Sandwich glass steel composite board arranging there is no the marginal position of side wall, side panel, its top is embedded in and is anchored at the binding in channel-section steel 14 of soffit, and bottom is connected with bottom panel 4 flanges; In the vertical, corresponding FFL and air output requirement, laterally main joist subsection setup, each section is not highly etc. stepped; In the horizontal, between adjacent Sandwich glass steel composite board, for flange connects, in the middle of flange, increase fire proof seal rubber cushion 9; Be provided with condensation water collection mouth 10 in the minimum point of plenum chamber; All connecting sewings all adopt sealing sizing material 16 to carry out shutoff.
The invention still further relates to the construction method of the composite glass fiber reinforced plenum chamber of a kind of above-mentioned auditorium's sandwich, technological process
On-the-spot location unwrapping wire-material prepare-welds suspension rod 8, and------wall panel 7 is installed, and---------rustproof paint is cleared up and brushed to solder joint, and------light leak test---access door shutoff---air-supply detects brushing fireproof paint to weld longitudinal secondary joist 43 in joint seal processing to weld horizontal main joist 42.Concrete operations are as follows:
Step 1, location unwrapping wire: referenced drawing is determined the coverage of plenum chamber, determines its axial location, determines the box height of plenum chamber according to designing requirement, according to the absolute altitude at the bottom of air output and wind speed requirement adjustment plenum chamber.The first floor is in order to realize plenum chamber construction and to avoid the expansion bolt in later stage to destroy pre-stress floor, at suspension-center pre-embedded on first floor prestressed hollow slab during structure construction, and the suspension centre of the first floor is carried out unwrapping wire, verifies the pre-buried quality of suspension centre, the top layer of suspension-center pre-embedded is cleared up.Two layers of steel work layer in order to make full use of the girder steel of having constructed, the installation accuracy that ensures the horizontal main joist of plenum chamber simultaneously, increase steelframe conversion layer between girder steel, emit accurately position line.
Step 2, material is prepared: comprise the preparation of spine material and the preparation of cabinet panel material, as the scale of Sandwich glass steel composite board is made, the galvanizing processing of spine material etc., erosion for fear of the condensed water producing in plenum chamber to plenum chamber inside keel, all keel all adopt galvanizing processing, comprise flange screw, FRIM warming plate is in factory's octahedral sealing, glass silk flosssilk wadding is all wrapped in to the inside, the inside forms cavity, moisture cannot enter, reach good heat-insulating property, avoid on-site cutting to destroy sealing effectiveness, after materials arrival, first to carry out the specification of sheet material, intensity field test, material all should have product certificate, the intensity report of associated materials and the report of burning grade, and do in accordance with regulations the relevant checking of marching into the arena.
Step 3, welding suspension rod 8: built-in fitting 17 in the top of 50 × 3 angle steel suspension rods and floor is carried out to two-sided welding;
Step 4, weld horizontal main joist 42: at the horizontal main joist of the bottom of suspension rod 8 vertical welding, form main joist frame by some parallel single horizontal main joists; Wherein, with the concrete operation method that channel-section steel arranges horizontal main joist 42 be:
A, be welded into a horizontal main joist by back-to-back two 5# channel-section steels, notch is towards the right and left;
B, at the horizontal main joist of the bottom of suspension rod vertical welding, form parallel horizontal main joist support body, two-sided welding is carried out with the top of horizontal main joist channel-section steel in the bottom of suspension rod, at the bearing of trend of horizontal main joist, comply with stepped requirement, between adjacent two horizontal main joists, be welded to connect by segmented node;
C, on the marginal position body of wall that has side wall, limit channel-section steel 13 is received in anchoring: single channel-section steel is anchored on side wall with expansion bolt, outwardly, height adapts with the most contiguous horizontal main joist height the notch of channel-section steel;
D, the channel-section steel 14 that binds is set on the floor of the marginal position without side wall: with expansion bolt, single channel-section steel is anchored on the soffit of top, edge, channel-section steel notch down, for intercalation side panel;
Step 5, installation bottom panel 4 and side panel 7: the edge, both sides of Sandwich glass steel composite board is embedded respectively in the notch of the horizontal main joist 42 in both sides, between adjacent two panels, adopt flange 8 to be connected to form bottom surface lath 41 in the horizontal; The bottom of side panel 7 is carried out flange with the bottom surface lath 41 of bottom panel 4 edges and is connected, and the top of side panel 7 is connected with floor 2;
Step 6, joint seal processing: in the connecting sewing of chimeric gap, plenum chamber edge and the side wall of cabinet panel and channel-section steel or flange, filling with sealant material seals as neutral weather-resistant glue, simultaneously for ensureing the sealing of flange connections, in the middle of flange, establish fire seal, make plenum chamber integral sealing tight;
Step 7, weld longitudinal secondary joist 43: on the bottom surface of horizontal main joist channel-section steel, weld the longitudinal secondary joist of 30 × 3 angle steel, longitudinally secondary joist and the horizontal orthogonal formation groined type of main joist face frame;
Rustproof paint is cleared up and brushed to step 8, solder joint: all solder joints are removed to welding slag, at solder joint brushing at two sides rustproof paint; For improving plenum chamber fire endurance, to on the horizontal main joist exposing and longitudinal secondary joist, carry out brushing fireproof paint, simultaneously, for avoiding horizontal main joist channel-section steel place to occur cold bridge phenomenon generation dewfall, between the upper surface of horizontal main joist, suspension rod, cover the composite glass fiber reinforced anti-condensation cover plate of sandwich, the width of anti-condensation cover plate equates with horizontal main joist width;
Step 9, light leak test: illuminate all sites in plenum chamber at night with lamp, access door light is sheltered from, keep all light outside plenum chamber to close, check the light leak situation of plenum chamber seam, if there is light leak to overhaul in time;
Step 10, access door shutoff: after complete liquidation inside plenum chamber is clean, use the sheet material sealing sizing material of same material to carry out shutoff to access door, sealant sealing is used in gap, outside again, is convenient to like this secondary maintenance and uses;
Step 11, air-supply detect: after plenum chamber and interior decoration all complete, start air-conditioning unit, for under-seat, air quantity detector detects wind speed size, so far, constructs complete.
Claims (10)
1. the composite glass fiber reinforced plenum chamber of auditorium's sandwich, be located at seat region, auditorium under, comprise floor (2) and be located at the casing (3) of soffit, wherein on floor (2), have air outlet (6), on casing, have at least one air intake (5), it is characterized in that: described casing (3) comprises bottom panel (4) and side panel (7);
Described bottom panel (4) is made up of bottom surface lath (41) and horizontal keel shoe, described bottom surface lath (41) is formed by connecting by the Sandwich glass steel composite board head and the tail flange of one one, described horizontal keel shoe is intersected and is formed by fixedly connecting by horizontal main joist (42) and longitudinal secondary joist (43), wherein longitudinally secondary joist (43) couples together all horizontal main joists (42), laterally main joist (42) is connected with the interior built-in fitting (17) of floor on floor by suspension rod (8) again, described horizontal main joist (42) is H shaped steel, i iron or be welded back-to-back by two channel-section steels, lath 41 intercalations of described bottom surface are between the two adjacent horizontal main joists of row (42),
Described side panel (7) is formed by connecting by the Sandwich glass steel composite board head and the tail flange of one one, and the bottom of side panel (7) is connected with bottom surface lath (41) flange of bottom panel (4) edge, and the top of side panel (7) is connected with floor (2) by the channel-section steel that binds (14) being anchored on soffit.
2. the composite glass fiber reinforced plenum chamber of a kind of auditorium sandwich according to claim 1, is characterized in that: having side wall (15) to locate, bottom panel (4) is fixedly connected with side wall (15) by receiving limit channel-section steel (13).
3. the composite glass fiber reinforced plenum chamber of a kind of auditorium sandwich according to claim 1, is characterized in that: the core of described Sandwich glass steel composite board is superfine glass silk flosssilk wadding, rock wool, perlite, inorfil or STP warming plate.
4. the composite glass fiber reinforced plenum chamber of a kind of auditorium sandwich according to claim 1, is characterized in that: described suspension rod (8) and longitudinally secondary joist (43) are angle steel, square steel, channel-section steel, band steel or the round steel of galvanizing processing.
5. the composite glass fiber reinforced plenum chamber of a kind of auditorium sandwich according to claim 1, is characterized in that: on described suspension rod (8), laterally main joist (42) and longitudinal secondary joist (43), all scribble fireproof paint.
6. the composite glass fiber reinforced plenum chamber of a kind of auditorium sandwich according to claim 1, is characterized in that: described horizontal main joist (42) upper surface is glued with the anti-condensation cover plate (12) of one deck sandwich composite fiberglass material.
7. a construction method for the composite glass fiber reinforced plenum chamber of a kind of auditorium's sandwich described in the claims 1～6 any one, is characterized in that: comprise the steps:
Step 1, location unwrapping wire: referenced drawing is determined the coverage of plenum chamber, determines its axial location, determines the box height of plenum chamber according to designing requirement, according to the absolute altitude at the bottom of air output and wind speed requirement adjustment plenum chamber;
Step 2, material are prepared: comprise the preparation of spine material and the preparation of cabinet panel material, as scale making, the galvanizing processing of spine material etc. of Sandwich glass steel composite board;
Step 3, welding suspension rod (8): built-in fitting (17) in the top of suspension rod and floor is carried out to two-sided welding;
Step 4, weld horizontal main joist (42): at the horizontal main joist of the bottom of suspension rod vertical welding, form horizontal main joist face frame by some parallel single horizontal main joists;
Step 5, installation bottom panel (4) and side panel (7): the edge, both sides of Sandwich glass steel composite board is embedded respectively in the notch of the horizontal main joists in both sides (42), between adjacent two panels, adopt flange (8) to be connected to form bottom surface lath (41) in the horizontal; The bottom of side panel (7) is carried out flange with the bottom surface lath (41) of bottom panel (4) edge and is connected, and the top of side panel (7) is connected with floor (2);
Step 6, joint seal processing: in the connecting sewing of bottom panel (4) and side panel (7) and chimeric gap, plenum chamber edge and the side wall of channel-section steel or flange (8), filling with sealant material (16) seals, simultaneously for ensureing the sealing of flange connections, in the middle of flange, establish fire seal (9), make plenum chamber integral sealing tight;
Step 7, weld longitudinal secondary joist (43): on the bottom surface of horizontal main joist channel-section steel, weld longitudinal secondary joist, longitudinally secondary joist intersects and fixes the trellised horizontal keel shoe of shape with horizontal main joist;
Rustproof paint is cleared up and brushed to step 8, solder joint: all solder joints are removed to welding slag, at solder joint brushing at two sides rustproof paint;
Step 9, light leak test: illuminate all sites in plenum chamber at night with lamp, access door light is sheltered from, keep all light outside plenum chamber to close, check the light leak situation of plenum chamber seam, if there is light leak to overhaul in time;
Step 10, access door shutoff: after complete liquidation inside plenum chamber is clean, use the sheet material sealing sizing material of same material to carry out shutoff to access door, sealant sealing is used in gap, outside again, is convenient to like this secondary maintenance and uses;
Step 11, air-supply detect: after plenum chamber and interior decoration all complete, start air-conditioning unit, for under-seat, air quantity detector detects wind speed size, so far, constructs complete.
8. the construction method of the composite glass fiber reinforced plenum chamber of a kind of auditorium's sandwich according to claim 7, is characterized in that: in described step 4, the concrete operation method that horizontal main joist (42) is set is,
Step a, at one one horizontal main joist (42) parallel to each other of bottom transverse weld of suspension rod (41), form the horizontal main joist support body of level;
Step b, on the marginal position body of wall that has side wall, limit channel-section steels (13) are received in anchoring: single channel-section steel is anchored on side wall with expansion bolt, outwardly, height adapts with contiguous horizontal main joist height the notch of channel-section steel;
Step c, the channel-section steel (14) that binds is set on the floor of the marginal position without side wall: with expansion bolt, single channel-section steel is anchored on the soffit of top, edge, channel-section steel notch down, for intercalation side panel.
9. the construction method of the composite glass fiber reinforced plenum chamber of a kind of auditorium's sandwich according to claim 8, is characterized in that: in described step 8, at the external coating fireproof paint of the horizontal main joist (42) exposing and longitudinal secondary joist (43).
10. the construction method of the composite glass fiber reinforced plenum chamber of a kind of auditorium's sandwich according to claim 9, is characterized in that: in described step 8, cover the anti-condensation cover plate (12) of one deck sandwich composite fiberglass material on horizontal main joist (42).
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