CN115095199B - Mounting system and construction method for air supply seat of step stand - Google Patents
Mounting system and construction method for air supply seat of step stand Download PDFInfo
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- CN115095199B CN115095199B CN202210697264.1A CN202210697264A CN115095199B CN 115095199 B CN115095199 B CN 115095199B CN 202210697264 A CN202210697264 A CN 202210697264A CN 115095199 B CN115095199 B CN 115095199B
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- air supply
- steel pipe
- lower air
- steel plate
- embedded
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- 238000010276 construction Methods 0.000 title abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 219
- 239000010959 steel Substances 0.000 claims abstract description 219
- 239000004567 concrete Substances 0.000 claims abstract description 40
- 239000002131 composite material Substances 0.000 claims abstract description 38
- 229910000746 Structural steel Inorganic materials 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 20
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 239000002023 wood Substances 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 15
- 239000011150 reinforced concrete Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- 238000005034 decoration Methods 0.000 claims description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 230000003749 cleanliness Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000011900 installation process Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 10
- 238000009423 ventilation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
- E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
- E04H3/12—Tribunes, grandstands or terraces for spectators
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/62—Accessories for chairs
- A47C7/72—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
- A47C7/74—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling
- A47C7/742—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling for ventilating or cooling
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
- E04F11/025—Stairways having stringers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/104—Treads
- E04F11/108—Treads of wood or with an upper layer of wood
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
- E04G13/062—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for stairs or steps
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0227—Ducting arrangements using parts of the building, e.g. air ducts inside the floor, walls or ceiling of a building
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
- E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
- E04F2011/0207—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of wood
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
- E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
- E04F2011/021—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass
- E04F2011/0212—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass mainly of concrete
- E04F2011/0214—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass mainly of concrete cast in situ
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to the field of buildings, in particular to a mounting system and a construction method for an air supply seat of a stepped grandstand. The step stand comprises a structural steel beam, a composite floor slab and multistage steps, wherein the structural steel beam is obliquely arranged, the composite floor slab is arranged on the structural steel beam, and the multistage steps are arranged on the composite floor slab; the multistage steps comprise a plurality of square timber cushion block groups, a plurality of square timber support bar groups, a multi-layer board and a lightweight aggregate concrete filling layer; the bottom of the structural steel beam is provided with a static pressure box, a lower air supply embedded steel pipe communicated with the static pressure box is embedded in the composite floor slab, the top surface of the lower air supply embedded steel pipe is connected with a lower air supply embedded steel plate, the lower air supply embedded steel plate is connected with an adapter steel pipe embedded in a lightweight aggregate concrete filling layer, the adapter steel pipe is communicated with the lower air supply embedded steel pipe, the upper end of the adapter steel pipe is connected with an adapter steel plate, and a chair foot air feeder of an air supply seat is arranged on the adapter steel plate and is communicated with the adapter steel pipe. The problems of long installation and construction period, high hole accuracy, low fault tolerance and the like of the air supply seat in the prior art are solved.
Description
Technical Field
The invention relates to the field of buildings, in particular to a mounting system and a construction method for an air supply seat of a stepped grandstand.
Background
The multi-stage stand is arranged in building spaces such as a music hall, a reporting hall and a stadium to meet space use functions, has various forms, high requirements on vision and acoustics and high construction difficulty; the construction process of the stand at the present stage is mostly concentrated in a cast-in-situ process, a process of adding a steel frame step to a local cast-in-situ bottom plate, and a process of prefabricating the stand; in the cast-in-situ process, the directly cast stand is built in civil engineering, the manual investment is large, the construction period is long, the accuracy control difficulty is high, and meanwhile, the quality and the safety of the building are seriously affected due to the problems of cracks and the like caused by the influence of the strength and the load of materials; the steel step frame is additionally arranged on the stand bottom plate, so that the cost is high, the interior of the stand bottom plate is empty, noise is easy to generate, and the using effect of the space is seriously affected; the process for prefabricating the stand is limited to a linear stand, but cannot meet the installation and manufacturing requirements of an arc stand and the like.
In large public buildings such as movie theatres, reporting halls, stadiums and the like, the seat air supply is used as a replacement ventilation mode, and is widely applied by virtue of the characteristics of energy conservation and comfort; large-scale spaces such as theatres, reporting halls, stadiums and the like are mostly step-type stands, so that the difficulty of installing air supply seats is increased; the air supply seat air supply device is completely matched with the position of the vent hole so as to meet the requirements of seat ventilation and installation; the installation of the air supply seat at the present stage is mostly in two modes of reserved holes and later-stage hole punching; once the position deviation of the reserved hole is generated, secondary hole punching or secondary hole repairing is needed, the fault tolerance rate is low, and the construction progress is influenced; if no hole is reserved, the stability of the structure is affected and the period is restricted according to the actual hole cutting in the later period.
Disclosure of Invention
The invention aims to solve the problems, so that the installation system and the construction method of the air supply seat of the stepped stand can effectively solve the problems of long installation and construction period, high requirement on the accuracy of a hole, low fault tolerance and the like of the air supply seat at the present stage, and the problems of high construction difficulty, long period, high cost, low accuracy, noise in empty drum and the like of the traditional stand, and can meet the construction operation requirements of large-area stands, linear stands and arc stands.
The invention solves the problems, and adopts the following technical scheme:
the air supply seat installation system of the stair stand comprises a structural steel beam obliquely arranged, a composite floor slab arranged on the structural steel beam and multistage steps arranged on the composite floor slab; the multi-stage steps comprise a plurality of square cushion block groups and a plurality of square support bar groups which are sequentially arranged from top to bottom along the inclination direction of the composite floor slab, each stage of steps comprises a group of square cushion block groups and a group of square support bar groups, and the square support bars of the square support bar groups are arranged in one-to-one correspondence with the wood Fang Diankuai of the square cushion block groups; each group of timber support block groups comprises a plurality of timber Fang Diankuai which are mutually spaced and arranged in rows along the width direction of the steps, each timber support block group is respectively fixed on the composite floor slab, each group of timber support bar groups comprises a plurality of timber support bars which are mutually spaced and arranged in rows along the width direction of the steps, one end of each timber support bar is fixed at the top end of each timber support block which is correspondingly arranged, the other end of each timber support bar is vertically and fixedly connected with the corresponding multilayer board, each group of timber support bar groups is fixedly abutted with the same multilayer board, the bottoms of the multilayer boards are abutted on the composite floor slab and are attached to the timber Fang Diankuai groups of the steps at the lower level, a lightweight aggregate concrete filling layer is arranged between the adjacent multilayer boards, and each timber support bar is buried in the lightweight aggregate concrete filling layer; the bottom of structural steel roof beam is equipped with the static pressure case, and the pre-buried steel pipe of supplying air under with the static pressure case is linked together in the composite floor board, and the top surface of the pre-buried steel pipe of supplying air under is connected with the pre-buried steel sheet of supplying air under, is connected with the switching steel pipe of pre-buried in lightweight aggregate concrete filling layer on the pre-buried steel sheet of supplying air under, and the switching steel pipe is linked together with the pre-buried steel pipe of supplying air under, and the upper end of switching steel pipe is connected with the switching steel sheet, and the chair foot air feeder of air supply seat is installed on the switching steel sheet and is linked together with the switching steel pipe.
Preferably, the composite floor slab comprises a profiled steel sheet arranged on a structural steel beam and a reinforced concrete slab body poured on the profiled steel sheet, wherein a lower air supply embedded steel tube is perpendicular to the profiled steel sheet and embedded in the reinforced concrete slab body, a through hole communicated with the static pressure box is formed in the profiled steel sheet, and the lower air supply embedded steel tube is covered on the through hole and connected with the profiled steel sheet.
Preferably, galvanized corner brackets connected with the profiled steel sheet are arranged on the lower air supply embedded steel pipe, and the galvanized corner brackets are arranged at intervals along the circumferential direction of the lower air supply embedded steel pipe.
Preferably, the mounting hole is formed in the lower air supply embedded steel plate, the switching steel pipe is vertically inserted into the mounting hole, the switching steel pipe is perpendicular to the upper plane of the step, and the switching steel pipe is in sealing connection with the lower air supply embedded steel plate.
Preferably, round holes matched with the transfer steel pipes are formed in the transfer steel plates, the transfer steel pipes are fixed in the round holes, nuts are fixed at the bottoms of the transfer steel plates at intervals along the circumferential direction of the transfer steel pipes, and bolts connected with the nuts are arranged on the chair leg air feeders.
Preferably, the top surfaces of the square timber support bars and the top surface of the lightweight aggregate concrete filling layer are positioned on the same horizontal plane, the outer side surface of each multilayer board and the upper part of the single square timber support bar group are respectively fixed with base boards, and the base boards on two sides are vertically arranged.
Preferably, the decoration panel is laid on the base layer plate and is formed by splicing a horizontal panel, a vertical panel and a connecting angle plate.
Preferably, the bottom surface of the wood Fang Diankuai is an inclined surface adapted to the inclination angle of the step, and each wood Fang Diankuai is fixed on the composite floor slab through plastic expansion nails.
A construction method of a stepped stand air supply seat installation system is characterized by comprising the following steps:
s1, paving and fixing a profiled steel sheet on a structural steel beam, drawing a layout of through holes on the profiled steel sheet, and determining the positions of the through holes;
s2, pre-installing a lower air supply pre-embedded steel pipe, a lower air supply pre-embedded steel plate, a switching steel pipe and a switching steel plate outside a field;
s2-1, welding a lower air supply embedded steel plate at the upper end of a lower air supply embedded steel pipe, and uniformly and alternately welding four galvanized corner codes at the bottom of the outer circumferential surface of the lower air supply embedded steel pipe;
s2-2, welding a transfer steel plate at the upper end of the transfer steel pipe, and uniformly and alternately welding four nuts at the bottom of the transfer steel plate along the circumferential direction of the transfer steel pipe;
s3, covering the pre-installed lower air supply embedded steel pipe on the through hole according to the layout of the through hole, and respectively fixing the four galvanized corner brackets on the pressed steel plate by using self-drilling screws;
s4, binding reinforcing steel bars on the profiled steel sheet and pouring concrete after fixing the lower air supply embedded steel tube, and finishing pouring of the reinforced concrete slab;
s4-1, when the reinforced concrete slab body is used for pouring concrete, the lower air supply embedded steel plate and the concrete are in the same horizontal plane;
s5, completing secondary paying-off positioning on the lower air supply embedded steel plate according to the layout of the through holes, and determining the positions of the mounting holes;
s6, according to the diameter of the switching steel pipe, arranging mounting holes in the lower air supply embedded steel plate and arranging through holes in the profiled steel plate;
s7, determining the height of the transfer steel plate, enabling the transfer steel plate to be level with the decoration panel, and fully welding the transfer steel pipe on the lower air supply embedded steel plate;
s8, drawing a deepened design drawing, and determining the specification, the size and the position of the step;
s8-1, paying off on site, and marking locating points of the step templates;
s8-2, checking the model number and the number of the step templates and the accessories;
s9, installing a step template;
s9-1, vertically fixing wood Fang Diankuai on a composite floor slab by using plastic expansion nails, wherein the spacing between the wood Fang Diankuai is 600mm;
s9-2, fixing one end of the square support bar at the top end of the square cushion block by using a round nail, wherein the distance between the square support bars is 600mm;
s9-3, fixedly mounting a multi-layer board at the other end of the square timber support bar through round nails, fixing the bottom of the multi-layer board on a square timber cushion block of a lower step by using the round nails, abutting the bottom of the multi-layer board on a composite floor slab, and fixing side templates at two sides of the multi-layer board to form step template mounting; step templates of the whole stand are installed in a similar way;
s10, pouring lightweight aggregate concrete into the step template, vibrating to ensure full filling, and removing the side template after the lightweight aggregate concrete is molded;
s11, ensuring the cleanliness of a step foundation, fixing the base layer plate on a square support bar by using round nails, and ensuring the flatness of the base layer plate in the installation process;
s12, fixing the chair leg air blower on the switching steel plate by using bolts;
s13, installing the decoration panel according to the design requirement.
Compared with the prior art, the invention adopting the technical scheme has the outstanding characteristics that:
the invention can effectively solve the problems of long installation and construction period, high requirement on the accuracy of the hole, low fault tolerance and the like of the air supply seat at the present stage, and the problems of large construction difficulty, long period, high cost, low accuracy, noise in the air drum and the like of the traditional stand, and can meet the construction operation requirements of large-area stands, linear stands and arc stands; the wood Fang Diankuai, the square support bars and the multilayer plates are adopted as the supporting system of the steps, so that the cost is low, the wood Fang Diankuai, the square support bars and the multilayer plates are not removed in the later stage, are embedded into the lightweight aggregate concrete filling layer and are also used as a part of the integral structure of the steps, and meanwhile, the square support bars and the multilayer plates are used as nail connecting points of the decorative base layer, so that the secondary construction time and cost are reduced, the quality and safety of the building are ensured, the process of removing the traditional supporting system is optimized, and the problems of high labor input, long construction period and high precision control difficulty are solved; the wood support bars are buried in the concrete filling layer, so that the problem that cracks appear due to the influence of the material strength and the load is avoided; the lower air supply pre-embedding system and the lower air supply switching system are arranged in a segmented mode, so that the traditional installation methods of pre-embedding and secondary hole opening in the earlier stage are combined, the requirements of pre-embedding and positioning are met, and the installation requirements of stable installation and accurate positioning of an air supply seat are met; the wood square and multilayer plates are used as construction templates, the positioning is accurate, the production of other types of components can be realized rapidly by simply changing the die, and the templates are flexible to install and high in applicability; the lightweight aggregate concrete is adopted for filling, so that the volume weight is small, the load is low, the safety of the structure is improved, meanwhile, the sound absorption effect is good, no hollowness exists, the noise is not easy to generate, and the acoustic environment quality is greatly improved; and all materials are conventional materials, so that the material is convenient to purchase and the overall installation speed is high.
Drawings
FIG. 1 is a schematic diagram of a front view of an embodiment of the present invention;
FIG. 2 is a schematic view of a front view of a step according to an embodiment of the present invention;
FIG. 3 is a schematic illustration of an embodiment of the present invention of a wood Fang Diankuai, batten, multiwall board and structural floor mounting structure;
FIG. 4 is an enlarged partial schematic view of a front view of an embodiment of the present invention;
in the figure: 1. combining floors; 2. wood Fang Diankuai; 3. a wood square support bar; 4. a multi-layer board; 5. a base plate; 6. a decorative panel; 7. a lightweight aggregate concrete filling layer; 8. an air supply seat; 9. structural steel beams; 10. a step; 11. a static pressure box; 12. lower air supply pre-buried steel pipes; 13. lower air supply pre-buried steel plates; 14. switching the steel pipe; 15. switching the steel plate; 16. a chair leg air blower; 17. profiled steel sheet; 18. a reinforced concrete slab body; 19. a through hole; 20. and (5) galvanization corner brackets.
Detailed Description
The present invention will be further understood by the following description of embodiments, but the specific embodiments given by the applicant should not be considered as limiting the technical solution of the present invention, and any modification of the definition of components or technical features and/or the form of the whole structure without substantial change should be considered as the protection scope defined by the technical solution of the present invention.
Referring to fig. 1 to 4, the technical scheme of the invention is as follows:
the air supply seat installation system of the stair stand comprises an air supply seat 8 arranged on the stair stand, wherein the stair stand comprises a structural steel beam 9 which is obliquely arranged, a composite floor slab 1 which is arranged on the structural steel beam 9, and a multi-stage step 10 which is arranged on the composite floor slab 1; the structural steel beam 9 is an original stress structure and serves as a stress foundation of the whole system, the multistage steps 10 comprise a plurality of square block groups and a plurality of square support bar groups which are sequentially arranged from top to bottom along the inclined direction of the composite floor slab 1, each stage of steps 10 comprises a group of square block groups and a group of square support bar groups, and the square support bars 3 of the square support bar groups are arranged in one-to-one correspondence with the square block 2 of the square block groups; each group of timber cushion block groups comprises eight timber Fang Diankuai 2 which are spaced from each other and are arranged in rows along the width direction of the steps, the specification of each timber cushion block 2 is 50mm, the distance between each timber cushion block 2 is 600mm, each timber cushion block 2 is respectively fixed on the composite floor slab 1, each timber cushion block 2 is used as a bottom stress supporting member of a supporting structure, each timber support bar group comprises eight timber support bars 3 which are spaced from each other and are arranged in rows along the width direction of the steps, the specification of each timber support bar 3 is 50mm, the distance between each timber support bar 3 is 600mm, the length of each timber support bar 3 is determined according to the width of the steps 10, the timber support bars are used as top horizontal supporting members of the supporting structure, one end of each timber support bar 3 is fixed at the top of each timber cushion block 2 which is correspondingly arranged, the timber support bars 3 are connected with the timber cushion blocks 2 through round nails, the other end of each timber support bar group is vertically and fixedly connected with a multilayer plate 4, the bottom of each timber support bar group 4 is abutted against and fixed with the same multilayer plate 4, the timber support bar 4 is abutted against the composite floor slab 1 and is vertically connected with the multilayer plate Fang Diankuai and is vertically filled with the adjacent timber support bars 4 through light concrete filling the aggregate layer 7; the bottom of the structural steel beam 9 is provided with a static pressure box 11, a lower air supply embedded steel pipe 12 communicated with the static pressure box 11 is embedded in the composite floor slab 1, the lower air supply embedded steel pipe 12 is cylindrical, the thickness of the lower air supply embedded steel pipe is 3mm, the diameter of the lower air supply embedded steel pipe is set according to ventilation and stress requirements, the lower air supply embedded steel pipe is used as an embedded supporting member, the top surface of the lower air supply embedded steel pipe 12 is connected with a lower air supply embedded steel plate 13, the lower air supply embedded steel plate 13 is square, the thickness of the lower air supply embedded steel plate 13 is 8mm, the embedded supporting member is used as an embedded positioning supporting member, the lower air supply embedded steel plate 13 is connected with a switching steel pipe 14 embedded in the lightweight aggregate concrete filling layer 7, the thickness of the switching steel pipe 14 is 3mm, the diameter of the switching steel pipe 14 is set according to ventilation and stress requirements, the diameter of the switching steel pipe is smaller than the diameter of the lower air supply embedded steel pipe 12, the upper end of the switching steel pipe 14 is connected with a switching steel plate 15, the switching steel plate 15 is square, the thickness of the lower air supply embedded steel pipe is 5mm, the center is provided with a hole, the diameter of the hole is equal to the diameter of the switching steel pipe 14, the diameter of the hole is used as a connecting piece between the chair foot air supply device 16 and the switching steel pipe 14, the foot air supply device 16 is installed on the steel pipe 16 and is used as a finished chair seat 8, and the air supply device is used as an air supply device.
The composite floor slab 1 comprises a profiled steel sheet 17 arranged on a structural steel beam 9 and a reinforced concrete slab body 18 poured on the profiled steel sheet 17, wherein the profiled steel sheet 17 is a basic component part of the composite floor slab 1, the concrete floor slab body is formed by pouring reinforced steel bars and concrete, the composite floor slab 1 is used as a main body of the composite floor slab 1, a lower air supply embedded steel pipe 12 is perpendicular to the profiled steel sheet 17 and embedded in the reinforced concrete slab body 18, a through hole 19 communicated with a static pressure box 11 is formed in the profiled steel sheet 17, and the lower air supply embedded steel pipe 12 is covered on the through hole 19 and connected with the profiled steel sheet 17.
The lower air supply embedded steel pipe 12 is obliquely arranged along the profiled steel plate 17, the lower air supply embedded steel pipe 12 is provided with galvanized corner brackets 20 connected with the profiled steel plate 17, the galvanized corner brackets 20 are arranged at intervals along the circumference of the lower air supply embedded steel pipe 12, the galvanized corner brackets 20 are L-shaped, the vertical surface of the galvanized corner brackets is fixed with the lower air supply embedded steel pipe 12, the horizontal surface of the galvanized corner brackets is fixed with the profiled steel plate 17, and the galvanized corner brackets are used as connecting pieces of the lower air supply embedded steel pipe 12 and the profiled steel plate 17.
The lower air supply embedded steel plate 13 is provided with a mounting hole, the switching steel pipe 14 is vertically inserted in the mounting hole, the switching steel pipe 14 is perpendicular to the upper plane of the step 10, and the switching steel pipe 14 is in sealing connection with the lower air supply embedded steel plate 13.
The switching steel plate 15 is provided with a round hole matched with the switching steel pipe 14, the switching steel pipe 14 is fixed in the round hole, nuts are fixed at intervals along the circumferential direction of the switching steel pipe 14 at the bottom of the switching steel plate 15, and the chair leg air blower 16 is provided with bolts connected with the nuts; nuts are welded at four corners of the switching steel plate 15, and bolts and the nuts are combined and matched devices and serve as fasteners of the chair leg air blower 16 and the switching steel plate 15.
The top surfaces of the batten support bars 3 and the top surface of the lightweight aggregate concrete filling layer 7 are on the same horizontal plane, the base layer plates 5 are respectively fixed on the outer side surfaces of each multilayer plate 4 and the upper part of the single batten support bar group, and the two side base layer plates 5 are vertically arranged. The base layer board 5 is a decorative base layer, and the base layer board 5 is connected with the multilayer board 4 through round nail square support bars 3; the batten support bars 3 can be used as construction joints of the lightweight aggregate concrete filling layer 7, prevent the lightweight aggregate concrete filling layer 7 from cracking, and simultaneously serve as nail linkage points of the base plate 5.
Decorative panels 6 are paved on the base layer plates 5, and the decorative panels 6 are formed by splicing horizontal panels, vertical panels and connecting angle plates.
The bottom surface of each square cushion block 2 is an inclined surface matched with the inclined angle of the step 10, and each square cushion block 2 is fixed on the composite floor slab 1 through plastic expansion nails; the structural arrangement of the square timber cushion 2 makes the connection with the composite floor slab 1 more stable.
A construction method of a stepped stand air supply seat installation system is characterized by comprising the following steps:
s1, paving and fixing a profiled steel sheet 17 on a structural steel beam 9, drawing a layout of through holes 19 on the profiled steel sheet 17, and determining the positions of the through holes 19;
s2, pre-installing the lower air supply pre-embedded steel pipe 12, the lower air supply pre-embedded steel plate 13, the switching steel pipe 14 and the switching steel plate 15 outside the field;
s2-1, welding a lower air supply embedded steel plate 13 at the upper end of a lower air supply embedded steel pipe 12, and uniformly and alternately welding four galvanized corner fittings 20 at the bottom of the outer circumferential surface of the lower air supply embedded steel pipe 12;
s2-2, welding a transfer steel plate 15 at the upper end of the transfer steel pipe 14, and welding four nuts at intervals along Xiang Junyun weeks of the transfer steel pipe 14 at the bottom of the transfer steel plate 15;
s3, covering the pre-installed lower air supply embedded steel pipe 12 on the through hole 19 according to the layout of the through hole 19, and respectively fixing four galvanized corner brackets 20 on the profiled steel sheet 17 by using self-drilling screws;
s4, binding reinforcing steel bars and pouring concrete on the profiled steel sheet 17 after the lower air supply embedded steel tube 12 is fixed, and finishing pouring of the reinforced concrete slab body 18;
s4-1, when concrete is poured into the reinforced concrete slab body 18, the lower air supply embedded steel plate 13 and the concrete are in the same horizontal plane;
s5, completing secondary paying-off positioning on the lower air supply embedded steel plate 13 according to the layout of the through holes 19, and determining the positions of the mounting holes;
s6, according to the diameter of the switching steel pipe 14, arranging mounting holes in the lower air supply embedded steel plate 13 and arranging through holes 19 in the profiled steel plate 17;
s7, determining the height of the transfer steel plate 15, enabling the transfer steel plate 15 to be level with the decoration panel 6, and fully welding the transfer steel pipe 14 on the lower air supply embedded steel plate 13;
s8, drawing a deepened design drawing, and determining the specification, the size and the position of the step 10;
s8-1, paying off on site, and marking locating points of the step templates;
s8-2, checking the model number and the number of the step templates and the accessories;
s9, installing a step template;
s9-1, vertically fixing wood Fang Diankuai 2 on a composite floor slab 1 by using plastic expansion nails, wherein the spacing between the square timber blocks 2 is 600mm;
s9-2, fixing one end of the square support bar 3 at the top end of the square cushion block 2 by using a round nail, wherein the distance between the square support bars 3 is 600mm;
s9-3, fixedly mounting a multilayer board 4 at the other end of the square timber support bar 3 through round nails, fixing the bottom of the multilayer board 4 on a square timber cushion block 2 of a lower step 10 by using round nails, abutting the bottom of the multilayer board 4 on a composite floor slab 1, and fixing side templates at two sides to form step 10 template mounting; step templates of the whole step stand are installed in a similar way;
s10, pouring lightweight aggregate concrete into the step template, vibrating to ensure full filling, and removing the side template after the lightweight aggregate concrete is molded;
s11, ensuring the basic cleanliness of the step 10, fixing the base plate 5 on the square support bar 3 by using round nails, and ensuring the flatness of the base plate 5 in the installation process;
s12, fixing the chair leg air blower 16 on the switching steel plate 15 by using bolts;
s13, installing the decoration panel 6 according to design requirements.
The invention can effectively solve the problems of long installation and construction period, high requirement on the accuracy of the hole, low fault tolerance and the like of the air supply seat 8 at the present stage, and the problems of large construction difficulty, long period, high cost, low accuracy, noise in the empty drum and the like of the traditional stand, and can meet the construction operation requirements of large-area stands, linear stands and arc stands; the supporting system adopting the square cushion block 2, the square supporting bar 3 and the multilayer board 4 as the steps 10 is low in cost, the square cushion block 2, the square supporting bar 3 and the multilayer board 4 are not dismantled in the later stage, are embedded into the lightweight aggregate concrete filling layer 7 and serve as a part of the integral structure of the steps 10, and meanwhile, the square supporting bar 3 and the multilayer board 4 serve as nail connecting points of the decorative base layer, so that the secondary construction time and cost are reduced, the quality and safety of a building are ensured, the process that the traditional supporting system needs to be dismantled is optimized, and the problems of high labor input, long construction period and high accuracy control difficulty are solved; the wood support bars 3 are buried in the concrete filling layer, so that the problem of cracks caused by the influence of the material strength and the load is avoided; the lower air supply pre-burying system and the lower air supply switching system are arranged in a segmented mode, so that the traditional pre-burying and secondary hole opening mounting method is combined, the pre-burying and positioning requirements are met, and the mounting requirements of stable mounting and accurate positioning of the air supply seat 8 are met; the wood square and the multilayer board 4 are adopted as construction templates, the positioning is accurate, the production of other types of components can be realized rapidly by simply changing the die, the template is flexible to install, and the applicability is strong; the lightweight aggregate concrete is adopted for filling, so that the volume weight is small, the load is low, the safety of the structure is improved, meanwhile, the sound absorption effect is good, no hollowness exists, the noise is not easy to generate, and the acoustic environment quality is greatly improved; all materials are conventional materials, so that the material is convenient to purchase and the overall installation speed is high; according to the later-stage hole opening of the installation position of the air supply seat 8, the aperture penetrates through the lower air supply embedded steel plate 13 and the profiled steel plate 17, so that the air flow in the static pressure box 11 can be transmitted to the seat foot air blower 16, uniform air supply of the air supply seat 8 is realized, the comfort of the air supply seat 8 is improved, and the energy-saving design requirement is met; the lower air supply embedded steel pipe 12 and the transfer steel pipe 14 are respectively and tightly combined with the reinforced concrete slab body 18 and the lightweight aggregate concrete filling layer 7, so that the structure is stable and firm; in addition, the components such as the lower air supply embedded steel pipe 12, the switching steel pipe 14 and the like are all existing standardized components, the material purchasing is convenient, the overall installation speed is high, no wet operation is performed, and the engineering progress is accelerated more favorably.
The foregoing description of the preferred embodiments of the invention is not intended to limit the scope of the claims, but rather to cover all equivalent modifications within the scope of the present invention as defined by the appended claims.
Claims (8)
1. The utility model provides a ladder stand air supply seat installation system, air supply seat installs on ladder stand, its characterized in that: the step stand comprises a structural steel beam which is obliquely arranged, a composite floor slab which is arranged on the structural steel beam, and a multi-stage step which is arranged on the composite floor slab; the multi-stage steps comprise a plurality of square cushion block groups and a plurality of square support bar groups which are sequentially arranged from top to bottom along the inclination direction of the composite floor slab, each stage of steps comprises a group of square cushion block groups and a group of square support bar groups, and the square support bars of the square support bar groups are arranged in one-to-one correspondence with the wood Fang Diankuai of the square cushion block groups; each group of timber support block groups comprises a plurality of timber Fang Diankuai which are mutually spaced and arranged in rows along the width direction of the steps, each timber support block group is respectively fixed on the composite floor slab, each group of timber support bar groups comprises a plurality of timber support bars which are mutually spaced and arranged in rows along the width direction of the steps, one end of each timber support bar is fixed at the top end of each timber support block which is correspondingly arranged, the other end of each timber support bar is vertically and fixedly connected with the corresponding multilayer board, each group of timber support bar groups is fixedly abutted with the same multilayer board, the bottoms of the multilayer boards are abutted on the composite floor slab and are attached to the timber Fang Diankuai groups of the steps at the lower level, a lightweight aggregate concrete filling layer is arranged between the adjacent multilayer boards, and each timber support bar is buried in the lightweight aggregate concrete filling layer; the bottom of the structural steel beam is provided with a static pressure box, a lower air supply embedded steel pipe communicated with the static pressure box is embedded in the composite floor slab, the top surface of the lower air supply embedded steel pipe is connected with a lower air supply embedded steel plate, the lower air supply embedded steel plate is connected with an adapting steel pipe embedded in a lightweight aggregate concrete filling layer, the adapting steel pipe is communicated with the lower air supply embedded steel pipe, the upper end of the adapting steel pipe is connected with an adapting steel plate, and a chair foot air feeder of an air supply seat is arranged on the adapting steel plate and is communicated with the adapting steel pipe; the composite floor slab comprises a profiled steel sheet arranged on a structural steel beam and a reinforced concrete slab body poured on the profiled steel sheet, wherein a lower air supply embedded steel pipe is perpendicular to the profiled steel sheet and embedded in the reinforced concrete slab body, a through hole communicated with the static pressure box is formed in the profiled steel sheet, and a lower air supply embedded steel pipe cover is arranged on the through hole and connected with the profiled steel sheet.
2. The stair stand air supply seat mounting system of claim 1, wherein: the lower air supply embedded steel pipe is provided with galvanized corner brackets connected with the profiled steel sheet, and the galvanized corner brackets are arranged at intervals along the circumferential direction of the lower air supply embedded steel pipe.
3. The stair stand air supply seat mounting system of claim 1, wherein: the lower air supply embedded steel plate is provided with a mounting hole, the switching steel pipe is vertically inserted in the mounting hole, the switching steel pipe is perpendicular to the upper plane of the step, and the switching steel pipe is in sealing connection with the lower air supply embedded steel plate.
4. The stair stand air supply seat mounting system of claim 1, wherein: round holes matched with the transfer steel pipes are formed in the transfer steel plates, the transfer steel pipes are fixed in the round holes, nuts are fixed at the bottoms of the transfer steel plates at intervals along the circumferential direction of the transfer steel pipes, and bolts connected with the nuts are arranged on the chair leg air feeders.
5. The stair stand air supply seat mounting system of claim 1, wherein: the top surfaces of the wood square support bars and the top surface of the lightweight aggregate concrete filling layer are positioned on the same horizontal plane, the outer side surface of each multilayer board and the upper part of the single wood square support bar group are respectively fixed with a base layer board, and the base layer boards on two sides are vertically arranged.
6. The stair stand air supply seat mounting system of claim 1, wherein: decorative panels are laid on the base layer plates and are formed by splicing horizontal panels, vertical panels and connecting angle plates.
7. The stair stand air supply seat mounting system of claim 1, wherein: the bottom surface of the wood Fang Diankuai is an inclined surface matched with the inclination angle of the step, and each wood Fang Diankuai is fixed on the composite floor slab through plastic expansion nails.
8. A method of constructing a stepped stand air supply seat mounting system according to any one of claims 1 to 7, wherein:
s1, paving and fixing a profiled steel sheet on a structural steel beam, drawing a layout of through holes on the profiled steel sheet, and determining the positions of the through holes;
s2, pre-installing a lower air supply pre-embedded steel pipe, a lower air supply pre-embedded steel plate, a switching steel pipe and a switching steel plate outside a field;
s2-1, welding a lower air supply embedded steel plate at the upper end of a lower air supply embedded steel pipe, and uniformly and alternately welding four galvanized corner codes at the bottom of the outer circumferential surface of the lower air supply embedded steel pipe;
s2-2, welding a transfer steel plate at the upper end of the transfer steel pipe, and uniformly and alternately welding four nuts at the bottom of the transfer steel plate along the circumferential direction of the transfer steel pipe;
s3, covering the pre-installed lower air supply embedded steel pipe on the through hole according to the layout of the through hole, and respectively fixing the four galvanized corner brackets on the pressed steel plate by using self-drilling screws;
s4, binding reinforcing steel bars on the profiled steel sheet and pouring concrete after fixing the lower air supply embedded steel tube, and finishing pouring of the reinforced concrete slab;
s4-1, when the reinforced concrete slab body is used for pouring concrete, the lower air supply embedded steel plate and the concrete are in the same horizontal plane;
s5, completing secondary paying-off positioning on the lower air supply embedded steel plate according to the layout of the through holes, and determining the positions of the mounting holes;
s6, according to the diameter of the switching steel pipe, arranging mounting holes in the lower air supply embedded steel plate and arranging through holes in the profiled steel plate;
s7, determining the height of the transfer steel plate, enabling the transfer steel plate to be level with the decoration panel, and fully welding the transfer steel pipe on the lower air supply embedded steel plate;
s8, drawing a deepened design drawing, and determining the specification, the size and the position of the step;
s8-1, paying off on site, and marking locating points of the step templates;
s8-2, checking the model number and the number of the step templates and the accessories;
s9, installing a step template;
s9-1, vertically fixing wood Fang Diankuai on a composite floor slab by using plastic expansion nails, wherein the spacing between the wood Fang Diankuai is 600mm;
s9-2, fixing one end of the square support bar at the top end of the square cushion block by using a round nail, wherein the distance between the square support bars is 600mm;
s9-3, fixedly mounting a multi-layer board at the other end of the square timber support bar through round nails, fixing the bottom of the multi-layer board on a square timber cushion block of a lower step by using the round nails, abutting the bottom of the multi-layer board on a composite floor slab, and fixing side templates at two sides of the multi-layer board to form step template mounting; step templates of the whole stand are installed in a similar way;
s10, pouring lightweight aggregate concrete into the step template, vibrating to ensure full filling, and removing the side template after the lightweight aggregate concrete is molded;
s11, ensuring the cleanliness of a step foundation, fixing the base layer plate on a square support bar by using round nails, and ensuring the flatness of the base layer plate in the installation process;
s12, fixing the chair leg air blower on the switching steel plate by using bolts;
s13, installing the decoration panel according to the design requirement.
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| CN202210697264.1A CN115095199B (en) | 2022-06-20 | 2022-06-20 | Mounting system and construction method for air supply seat of step stand |
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