CN104088481B - The construction method of the composite glass fiber reinforced plenum chamber of a kind of auditorium sandwich - Google Patents
The construction method of the composite glass fiber reinforced plenum chamber of a kind of auditorium sandwich Download PDFInfo
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- CN104088481B CN104088481B CN201410342775.7A CN201410342775A CN104088481B CN 104088481 B CN104088481 B CN 104088481B CN 201410342775 A CN201410342775 A CN 201410342775A CN 104088481 B CN104088481 B CN 104088481B
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Abstract
A kind of composite glass fiber reinforced plenum chamber of auditorium's sandwich and construction method thereof, plenum chamber is located at immediately below seat region, auditorium, comprise the casing of floor and underfloor, floor is connected with casing as top cover of box, air outlet is opened immediately below each seat, casing comprises bottom panel and side panel, bottom panel is made up of bottom surface lath and horizontal keel frame, bottom surface lath is formed by the Sandwich glass steel composite board head and the tail Flange joint of a piece a piece, horizontal keel frame is by horizontal stroke, longitudinal keel intersect fixes formation, bottom surface lath intercalation is between the horizontal main joist of adjacent two rows, horizontal main joist is connected with built-in fitting in floor by suspension rod, side panel and bottom panel edge Flange joint, its top is connected with floor.Integral rigidity of the present invention is good, weight capacity is strong, strong adaptability, and fire prevention, anticorrosion, sound insulation, damping, technique is simple, fast assembled, and later stage maintenance is convenient, has greatly saved material and cost of labor, has shortened construction period.
Description
Technical field
The present invention relates to a kind of ventilation plenum chamber, particularly relate to a kind of construction method of the composite glass fiber reinforced plenum chamber of sandwich be 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 culture life demand of the people improves gradually, this facilitates 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 the air-supply quality of cinema, indoor, assembly hall, in the bottom at each seat, air intake is set, on the concrete floor of fixed seating, reserving hole installs ajutage, installs the plenum chamber of double-decker floor realization or the hexahedron plenum chamber of galvanized sheet iron making in the below of floor.Take double-decker floor to realize plenum chamber, plenum chamber takes up space greatly, dead load is large, easily occur that condensed water, difficulty of construction are high, long construction period below floor; Plenum chamber is realized according to metal sheets such as corrosion resistant plates, then need on-the-spot splicing in installation process, occur the comparatively large and Site Welding fire hazardous of a large amount of splicing seams, workload, fire prevention, anticorrosion, sound insulation, damping performance is 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 all compare wastes 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 the construction method providing the composite glass fiber reinforced plenum chamber of a kind of auditorium sandwich, solve that double-decker floor plenum chamber in prior art takes up space greatly, dead load greatly, easily there is the high and technical problem of long construction period of condensed water, difficulty of construction below floor; Overcome in prior art simultaneously need on-the-spot splicing in galvanized sheet iron hexahedron plenum chamber installation process, occur that a large amount of splicing seams, workload are comparatively large and Site Welding fire hazardous, fire retardant anticorrosion sound insulation damping performance is poor, corrosion resistant plate needs specialize insulation layer, steel plate easily to produce under the effect of blast to resonate and can not enter plenum chamber, later stage garbage-cleaning or structural maintenance all than more laborious technical problem due to personnel.
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 immediately below seat region, auditorium, comprise floor and the casing being located at soffit, wherein floor has air outlet, casing has 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 frame, described bottom surface lath is formed by the Sandwich glass steel composite board head and the tail Flange joint of a piece a piece, described horizontal keel frame is formed by fixedly connecting by horizontal main joist and longitudinal secondary joist intersection, wherein all horizontal main joists couple together by longitudinal secondary joist, horizontal main joist is connected with built-in fitting in the floor on floor by suspension rod again, described horizontal main joist is H profile steel or i iron or is welded back-to-back by two channel-section steels, and the lath intercalation of described bottom surface is between the horizontal main joist of adjacent two rows;
Described side panel is formed by the Sandwich glass steel composite board head and the tail Flange joint of a piece a piece, and the bottom surface lath Flange joint of the bottom of side panel and bottom panel edge, the top of side panel is connected with floor by the channel-section steel that binds be anchored on soffit.
As the preferred technical solution of the present invention, having the marginal position of side wall can say the side panel of side wall as plenum chamber, 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 longitudinal secondary joist are the angle steel of galvanizing process, square steel, channel-section steel, band steel or round steel.
As the preferred technical solution of the present invention, described suspension rod, horizontal 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 invention still further relates to the construction method of the composite glass fiber reinforced plenum chamber of a kind of above-mentioned auditorium sandwich, it is characterized in that: comprise the steps:
Step one, line setting: the coverage of referenced drawing determination plenum chamber, determine its axial location, according to the box height of designing requirement determination plenum chamber, requires the absolute altitude of adjustment at the bottom of plenum chamber according to air output and wind speed;
Step 2, material prepare: comprise the preparation of spine material and the preparation of cabinet panel material, and the scale of Sandwich glass steel composite board makes, the galvanizing process of spine material;
Step 3, welding suspension rod: the built-in fitting in the top of suspension rod and floor is carried out two-sided welding;
Step 4, weld horizontal main joist: at the horizontal main joist of the bottom vertical welding of suspension rod, form horizontal main joist face frame by some parallel single horizontal main joists;
Step 5, installation bottom panel and side panel: embedded respectively at the edge, both sides of Sandwich glass steel composite board in the notch of the horizontal main joist in both sides, adopt Flange joint to form bottom surface lath in the horizontal between adjacent two pieces of Sandwich glass steel composite boards; The bottom of side panel and the bottom surface lath of bottom panel edge carry out Flange joint, and the top of side panel is connected with floor;
Step 6, joint seal process: the sizing material that is filled with a sealing in the connecting sewing of the chimeric gap of cabinet panel and channel-section steel or flange, plenum chamber edge and side wall seals, simultaneously for ensureing the sealing of flange connections, at the middle fiery seal gasket of setting up defences of flange, 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, longitudinal secondary joist and the trellised horizontal keel frame of the orthogonal shape of horizontal main joist;
Step 8, solder joint are cleared up and brush rustproof paint: by all solder joint removing welding slags, at solder joint brushing at two sides rustproof paint;
Step 9, light leak are tested: illuminate all sites in plenum chamber at night with lamp, sheltered from by access door light, 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 of same material to seal sizing material and carry out shutoff to access door, sealant sealing is used again in gap, outside, is convenient to secondary maintenance like this and uses;
Step 11, air-supply detect: after plenum chamber and interior decoration all complete, and start air-conditioner set, detect wind speed size, so far, construct complete at under-seat air quantity detector.
As the further refinement of the present invention program, in described step 3, the concrete operation method arranging horizontal main joist is:
Step a, at the bottom transverse weld one one of suspension rod horizontal main joist parallel to each other, form the horizontal main joist face frame of level;
Step b, on the marginal position body of wall having side wall anchoring receive limit channel-section steel: be anchored on side wall with expansion bolt by single receipts limit channel-section steel, receive the notch of limit channel-section steel outwardly, height adapts with contiguous horizontal main joist height;
Step c, the floor of the marginal position without side wall is arranged and to bind channel-section steel: with expansion bolt, the single channel-section steel that binds is anchored on the soffit above edge, binds 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, carry out brushing fireproof paint by the horizontal main joist exposed and longitudinal secondary joist.
As the further optimal technical scheme of construction method of the present invention, in described step 8, occur that cold bridge phenomenon condenses for avoiding horizontal main joist channel-section steel place, the anti-condensation cover plate that sandwich is composite glass fiber reinforced is covered between the upper surface, suspension rod of horizontal main joist, the width of anti-condensation cover plate is equal with horizontal main joist width, and the biside plate of anti-condensation cover plate extends the horizontal main joist clamping bottom and achieves a fixed connection.
Compared with prior art, technical advantage of the present invention is:
1 integral rigidity is good, weight capacity is strong
The sandwich compound GRP sheet of high strength 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 the technical problem of later stage garbage-cleaning or maintenance difficulty, not only consider the requirement of strength of sheet material self and the load of later stage erection equipment and architectural surface, also contemplate the load that later stage upper people clears up maintenance, in addition, corresponding with plenum chamber suspension rod bottom can provide suspension centre for other equipment;
2 strong adaptabilities
Plenum chamber adopts sandwich composite glass fiber reinforced as cabinet panel, not only conduct oneself with dignity lighter, and self sheet material only has 50mm thick, take up room little, the size of plenum chamber sheet material can control flexibly, simple installation, not only meet the moulding needed for decorative effect, the ceiling void can also be made full use of coordinate with keel, under the requirement meeting ventilation section area, do any moulding;
3 fire prevention, anticorrosion, sound insulation, damping
Sandwich is composite glass fiber reinforced well can realize fire prevention A level, main longitudinal secondary joist all brushing fireproof paints, and the overall fire-protection rating of plenum chamber is A level; Sandwich compound GRP is by force anticorrosive, good endurance, has captured the difficult problem using metal material easily to get rusty; Sandwich is composite glass fiber reinforced has sound insulation and damping effect concurrently, belongs to green product, pollution-free;
4 costs are low, easy construction
Integral construction is quick, keel installation and cabinet panel attended operation convenience, the composite glass fiber reinforced good seal of monolithic sandwich, and every block is independent subject, and factory's scale processing is without the need to on-site cutting, simple to operate;
5 without cold bridge problem
On horizontal main joist, add anti-condensation cover plate, condensed water can be reduced and formed; Disposable assembled shaping, solve the cold bridge problem of keel, Sandwich glass steel composite board is without the need to considering the problem that secondary is incubated again;
6 good airproof performances
The sizing material that is filled with a sealing in the chimeric gap of cabinet panel and channel-section steel or flange, plenum chamber edge and the connecting sewing of side wall seals, and simultaneously for ensureing the sealing of flange connections, establishing fire seal, make plenum chamber integral sealing tight in flange centre;
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, fast assembled, and later stage maintenance is convenient, has greatly saved material and cost of labor, has shortened construction period.
Accompanying drawing explanation
Fig. 1 is the overall appearance structural representation of the plenum chamber of auditorium in the embodiment that the present invention relates to;
Fig. 2 is the cross-sectional view of A-A section in Fig. 1;
Fig. 3 be casing 3 bottom panel on the distribution schematic diagram of horizontal main joist 42 and longitudinal secondary joist 43;
Fig. 4 is the syndeton schematic diagram of bottom panel 4 and floor 2;
Fig. 5 is the syndeton schematic diagram in Fig. 4 on B-B section between adjacent isles bottom panel;
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 is the syndeton schematic diagram with side wall and bottom panel 4 in a lateral direction;
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-seals sizing material, 12-anti-condensation cover plate, 13-receives limit channel-section steel, 14-binds channel-section steel, 15-side wall, 16-seal built-in fitting in sizing material, 17-floor.
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 immediately below 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, and for realizing the decorative ceiling moulding below floor, plenum chamber does 4 ladder breaks; The plenum chamber of two layers of auditorium's floor is long is 32.9m, and wide is 21.6m, and area is about 445m
2, plenum chamber smallest cross-sectional height is 400mm, and for ensureing first floor furred ceiling absolute altitude, plenum chamber need do 5 ladder breaks.
The Main Construction Technique difficult point related to is as follows: make Sandwich glass steel composite board reach fire prevention A level; Make installation convenient while ensureing higher static pressure boxboard machining accuracy; Higher Sandwich glass steel composite board intensity, can enter people and clear up rubbish or maintenance in the later stage; Gap sealing process between static pressure boxboard and plate; The process of the horizontal main joist cold bridge of plenum chamber; Solve the process of condensed water in plenum chamber.The present invention adopts Sandwich glass steel composite board to carry out Assembling, at the square integrally plenum chamber of auditorium's underfloor, is then communicated with plenum chamber by ajutage, 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 immediately below seat region, auditorium, comprise floor 2 and the casing 3 being located at soffit, wherein floor 2 has air outlet 6, casing has 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 frame, described bottom surface lath 41 is formed by the Sandwich glass steel composite board head and the tail Flange joint of a piece a piece, 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 frame is formed by fixedly connecting by horizontal main joist 42 and longitudinal secondary joist 43 intersection.With the direction of rows of seats for transverse direction, front and back seat in column is longitudinally.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 all horizontal main joists 42 couple together by longitudinal secondary joist 43, horizontal main joist 42 is connected with built-in fitting 17 in the floor on floor by suspension rod 8 again, described horizontal main joist 42 is for H profile steel or 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 for weld 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, be provided with the composite glass fiber reinforced anti-condensation cover plate 12 of sandwich between the upper surface of described horizontal main joist 42, suspension rod 8, the biside plate as Fig. 6 anti-condensation cover plate 12 extends the horizontal main joist 42 clamping bottom and achieves a fixed connection, described longitudinal secondary joist 43 is welded on the bottom surface of channel-section steel, lath 41 intercalation of described bottom surface is between the horizontal main joist 42 of adjacent two rows, suspension rod 8 and longitudinal secondary joist 43 can be the angle steel of galvanizing process, square steel, channel-section steel, band steel or round steel, and suspension rod 8, horizontal 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 the Sandwich glass steel composite board head and the tail Flange joint of a piece a piece, and bottom surface lath 41 Flange joint of the bottom of side panel 7 and bottom panel 4 edge, the top of side panel 7 is connected with floor 2 by the channel-section steel 14 that binds be 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 enclosure side panel, wherein Fig. 8 is the side wall at the edge vertical with horizontal main joist bearing of trend and the syndeton schematic diagram of bottom panel 4, Fig. 9 is the horizontal side wall at main joist bearing of trend edge and the syndeton schematic diagram of bottom panel 4, wherein there iing the marginal position side wall 15 of side wall namely 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; Do not having the marginal position of side wall, side panel to be the vertical Sandwich glass steel composite board arranged, its top be embedded in be anchored at soffit bind in channel-section steel 14, bottom and bottom panel 4 Flange joint; In the vertical, corresponding FFL and air output requirement, horizontal main joist subsection setup, each section is not highly etc. stepped; In the horizontal, be Flange joint between adjacent Sandwich glass steel composite board, in the middle of flange, increase fire proof seal rubber cushion 9; Condensation water collection mouth 10 is provided with 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 sandwich, technological process
On-the-spot line setting-material prepare-welds suspension rod 8, and---------------solder joint is cleared up and brush rustproof paint, and------light leak test---access door shutoff---air-supply detects brushing fireproof paint to weld longitudinal secondary joist 43 in joint seal process to install wall panel 7 to weld horizontal main joist 42.Concrete operations are as follows:
Step one, line setting: the coverage of referenced drawing determination plenum chamber, determine its axial location, according to the box height of designing requirement determination plenum chamber, requires the absolute altitude of adjustment at the bottom of plenum chamber according to air output and wind speed.The first floor is in order to realize plenum chamber construction and avoid the expansion bolt in later stage to destroy pre-stress floor, suspension-center pre-embedded on first floor prestressed hollow slab during structure construction, and the suspension centre of the first floor is carried out to 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 structural layer, in order to make full use of the installation accuracy of the girder steel of having constructed, the horizontal main joist ensureing plenum chamber simultaneously, increase steelframe conversion layer, release accurately position line between girder steel.
Step 2, material prepares: comprise the preparation of spine material and the preparation of cabinet panel material, scale as Sandwich glass steel composite board makes, the galvanizing process etc. of spine material, the condensed water produced in plenum chamber is to the erosion of plenum chamber interior furring channels, all keel all adopt galvanizing process, comprise flange screw, FRIM warming plate is in factory's octahedral sealing, glass silk flosssilk wadding is all wrapped in the inside, the inside forms cavity, moisture cannot enter, reach good heat-insulating property, on-site cutting is avoided to destroy sealing effectiveness, first the specification of sheet material will be carried out after materials arrival, intensity field test, material all should have product certificate, the Measurement Report of associated materials and the report of burning grade, and do relevant checking of marching into the arena by regulation.
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 two-sided welding;
Step 4, weld horizontal main joist 42: at the horizontal main joist of the bottom vertical welding of suspension rod 8, form horizontal main joist face 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 for two 5# channel-section steels, notch is towards the right and left;
B, at the horizontal main joist of the bottom vertical welding of suspension rod, form parallel horizontal main joist support body, two-sided welding is carried out at the bottom of suspension rod and the top of horizontal main joist channel-section steel, at the bearing of trend of horizontal main joist, comply with stepped requirement, be welded to connect by segmented node between adjacent two horizontal main joists;
C, on the marginal position body of wall having side wall anchoring receive limit channel-section steel 13: be anchored on side wall with expansion bolt by single receipts limit channel-section steel 13, receive the notch of limit channel-section steel 13 outwardly, height adapts with the most contiguous horizontal main joist height;
D, the floor of the marginal position without side wall is arranged and to bind channel-section steel 14: on the soffit be anchored at above edge by the single channel-section steel 14 that binds with expansion bolt, bind channel-section steel 14 notch down, for intercalation side panel;
Step 5, installation bottom panel 4 and side panel 7: embedded respectively at the edge, both sides of Sandwich glass steel composite board in the notch of the horizontal main joist 42 in both sides, adopt Flange joint to form bottom surface lath 41 in the horizontal between adjacent two pieces of panels; The bottom of side panel 7 and the bottom surface lath 41 of bottom panel 4 edge carry out Flange joint, and the top of side panel 7 is connected with floor 2;
Step 6, joint seal process: sizing material such as the neutral weather-resistant glue that is filled with a sealing in the connecting sewing of the chimeric gap of cabinet panel and channel-section steel or flange, plenum chamber edge and side wall 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 43: on the bottom surface of horizontal main joist channel-section steel, weld the longitudinal secondary joists of 30 × 3 angle steel, longitudinal secondary joist and horizontal main joist orthogonal formation groined type face frame;
Step 8, solder joint are cleared up and brush rustproof paint: by all solder joint removing welding slags, at solder joint brushing at two sides rustproof paint; For improving plenum chamber fire endurance, brushing fireproof paint is carried out by the horizontal main joist exposed and longitudinal secondary joist, simultaneously, occur that cold bridge phenomenon condenses for avoiding horizontal main joist channel-section steel place, between the upper surface, suspension rod of horizontal main joist, cover the anti-condensation cover plate that sandwich is composite glass fiber reinforced, the width of anti-condensation cover plate is equal with horizontal main joist width;
Step 9, light leak are tested: illuminate all sites in plenum chamber at night with lamp, sheltered from by access door light, 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 of same material to seal sizing material and carry out shutoff to access door, sealant sealing is used again in gap, outside, is convenient to secondary maintenance like this and uses;
Step 11, air-supply detect: after plenum chamber and interior decoration all complete, and start air-conditioner set, detect wind speed size, so far, construct complete at under-seat air quantity detector.
Claims (8)
1. the construction method of the composite glass fiber reinforced plenum chamber of auditorium's sandwich, it is characterized in that: the described auditorium composite glass fiber reinforced plenum chamber of sandwich is located at immediately below seat region, auditorium, comprise floor (2) and be located at the casing (3) of soffit, wherein floor (2) has air outlet (6), casing has 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 frame, described bottom surface lath (41) is formed by the Sandwich glass steel composite board head and the tail Flange joint of a piece a piece, described horizontal keel frame is formed by fixedly connecting by horizontal main joist (42) and longitudinal secondary joist (43) intersection, wherein all horizontal main joists (42) couple together by longitudinal secondary joist (43), horizontal main joist (42) is connected with built-in fitting (17) in the floor on floor by suspension rod (8) again, described horizontal main joist (42) is for H profile steel or i iron or be welded back-to-back by two channel-section steels, lath (41) intercalation of described bottom surface is between the adjacent two horizontal main joist of rows (42),
Described side panel (7) is formed by the Sandwich glass steel composite board head and the tail Flange joint of a piece a piece, and bottom surface lath (41) Flange joint of the bottom of side panel (7) and bottom panel (4) edge, the top of side panel (7) is connected with floor (2) by the channel-section steel that binds (14) be anchored on soffit;
Construction specifically comprises the steps:
Step one, line setting: the coverage of referenced drawing determination plenum chamber, determine its axial location, according to the box height of designing requirement determination plenum chamber, requires the absolute altitude of adjustment at the bottom of plenum chamber according to air output and wind speed;
Step 2, material prepare: comprise the preparation of spine material and the preparation of cabinet panel material, and the scale of Sandwich glass steel composite board makes, the galvanizing process of spine material;
Step 3, welding suspension rod (8): built-in fitting (17) in the top of suspension rod and floor is carried out two-sided welding;
Step 4, weld horizontal main joist (42): at the horizontal main joist of the bottom vertical welding of suspension rod, form horizontal main joist face frame by some parallel single horizontal main joists;
Step 5, installation bottom panel (4) and side panel (7): embedded respectively at the edge, both sides of Sandwich glass steel composite board in the notch of the horizontal main joist (42) in both sides, adopt Flange joint to form bottom surface lath (41) in the horizontal between adjacent two pieces of Sandwich glass steel composite boards; The bottom of side panel (7) and the bottom surface lath (41) of bottom panel (4) edge carry out Flange joint, and the top of side panel (7) is connected with floor (2);
Step 6, joint seal process: the sizing material (16) that is filled with a sealing in the connecting sewing of the chimeric gap of bottom panel (4) and side panel (7) and channel-section steel or flange, plenum chamber edge and side wall seals, simultaneously for ensureing the sealing of flange connections, at the middle fiery seal gasket (9) of setting up defences of flange, 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, longitudinal secondary joist and horizontal main joist intersect the fixing trellised horizontal keel frame of shape;
Step 8, solder joint are cleared up and brush rustproof paint: by all solder joint removing welding slags, at solder joint brushing at two sides rustproof paint;
Step 9, light leak are tested: illuminate all sites in plenum chamber at night with lamp, sheltered from by access door light, 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 of same material to seal sizing material and carry out shutoff to access door, sealant sealing is used again in gap, outside, is convenient to secondary maintenance like this and uses;
Step 11, air-supply detect: after plenum chamber and interior decoration all complete, and start air-conditioner set, detect wind speed size, so far, construct complete at under-seat air quantity detector.
2. the construction method of the composite glass fiber reinforced plenum chamber of a kind of auditorium sandwich according to claim 1, is characterized in that: in described step 4, and the concrete operation method arranging horizontal main joist (42) is,
Step a, at the bottom transverse weld one one of suspension rod (8) horizontal main joist (42) parallel to each other, form the horizontal main joist face frame of level;
Step b, anchoring receipts limit channel-section steel (13) on the marginal position body of wall having side wall: be anchored on side wall with expansion bolt by single receipts limit channel-section steel (13), receive the notch on limit channel-section steel (13) outwardly, height adapts with contiguous horizontal main joist height;
Step c, the floor of the marginal position without side wall is arranged and to bind channel-section steel (14): with expansion bolt, the single channel-section steel that binds (14) is anchored on the soffit above edge, the channel-section steel that binds (14) notch down, for intercalation side panel.
3. the construction method of the composite glass fiber reinforced plenum chamber of a kind of auditorium sandwich according to claim 1, is characterized in that: in described step 8, at the external coating fireproof paint of the horizontal main joist (42) exposed and longitudinal secondary joist (43).
4. the construction method of the composite glass fiber reinforced plenum chamber of a kind of auditorium sandwich according to claim 1, is characterized in that: in described step 8, and horizontal main joist (42) covers the anti-condensation cover plate (12) of one deck sandwich composite fiberglass material.
5. the construction method of 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) place, and bottom panel (4) is fixedly connected with side wall (15) by receiving limit channel-section steel (13).
6. the construction method of 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.
7. the construction method of the composite glass fiber reinforced plenum chamber of a kind of auditorium sandwich according to claim 1, is characterized in that: angle steel, square steel, channel-section steel, band steel or round steel that described suspension rod (8) and longitudinal secondary joist (43) are galvanizing process.
8. the construction method of 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), horizontal main joist (42) and longitudinal secondary joist (43) all scribble fireproof paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN106801514B (en) * | 2017-02-08 | 2019-02-26 | 中国建筑第八工程局有限公司 | Lower part is equipped with the construction method and mounting structure of auditorium's structure base slab in static pressure cabin |
| CN106760679A (en) * | 2017-02-23 | 2017-05-31 | 北京城建七建设工程有限公司 | Building static pressure cell structure and its construction method |
| CN115030394A (en) * | 2022-06-01 | 2022-09-09 | 中建科工集团有限公司 | Card formula fossil fragments wallboard |
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| CN102261151A (en) * | 2011-05-10 | 2011-11-30 | 北京建工博海建设有限公司 | Bar-type air outlet, silencing plenum box and grille lamp combined suspended ceiling and construction method thereof |
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