CN108396878A - A kind of section steel beam is combined with profiled sheet blocks entrance construction method - Google Patents

A kind of section steel beam is combined with profiled sheet blocks entrance construction method Download PDF

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Publication number
CN108396878A
CN108396878A CN201810266827.5A CN201810266827A CN108396878A CN 108396878 A CN108396878 A CN 108396878A CN 201810266827 A CN201810266827 A CN 201810266827A CN 108396878 A CN108396878 A CN 108396878A
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China
Prior art keywords
steel
concrete
steel beam
platform
profiled sheet
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CN201810266827.5A
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CN108396878B (en
Inventor
董飞
张艳华
邓武昌
廖宇
张城卫
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ZHONGDA CONSTRUCTION Co Ltd
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ZHONGDA CONSTRUCTION Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66Sealings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00Scaffolds primarily resting on the ground
    • E04G1/15Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/152Platforms made of metal or with metal-supporting frame
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
    • E04G3/32Hoisting devices; Safety devices

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

The present invention relates to a kind of section steel beams to combine closure entrance construction method with profiled sheet, it is characterised in that the setting connection bolt in the concrete column and floor on hole periphery;Self-supporting hoistable platform is set at hole, and jacking apparatus is set on the platform expansion plate of self-supporting hoistable platform;After section steel beam and band steel back are risen to setting elevation, section steel beam, reinforcement angle steel one and reinforcement angle steel two is set to be bolted respectively with connecting, and slot is shelved with band steel in the both ends of band steel and is connect;Profiled sheet, steel reinforcement cage are set gradually on the top of section steel beam and band steel;It will connect after convex falcon, bar connecting section, Bolted angle connection muscle and steel reinforcement cage be connected firmly, first pour the concrete one at position among plate, pour the concrete two of plate edge again after one final set of concrete;The construction of fiber grid layer, crack resist at mortar layer, leveling mortar layer is finally carried out successively.The present invention can not only promote the construction efficiency and quality of sealing hole, be also prevented from and plate surface crack occur.

Description

A kind of section steel beam is combined with profiled sheet blocks entrance construction method
Technical field
The present invention relates to floor entrance construction method, more particularly to a kind of section steel beam combines closure hole with profiled sheet and applies Work method belongs to decorative engineering field, is suitable for the hole sealing work of neighbouring wall column.
Background technology
With China's expanding economy, construction industry is also applied in continuous innovation and development, modern tall residential project structure In working hour, the case where structure of modification, is more and more caused by considering that incomplete or installation profession such as needs at the reasons early period.Work as architectural engineering After agent structure completion, often need to carry out sealing plate construction to original hole.In sealing plate work progress, how quickly, efficiently, matter Amount controllably completes structure sealing plate operation, at a current problem for needing to solve.
Currently, sealing plate is constructed, generally use holder, formwork from the bottom to top, successively carry out sealing plate construction, the construction operation side Formula needs successively to set holder, template, and the construction period is longer, and new-old concrete seam crossing is easy to crack.Existing is a kind of closure hole Mouth structure, including standard steel pipe, shore, fastener, glued plank sheathing, the hard lumps of wood and reinforcing bar etc., which is first to carry out at base Reason is implanted into reinforcing bar at hole, after hole formwork and the processing of hole side, to hole casting concrete and maintenance construction, finally Carry out form removable;Analysis finds, the structure need to be implanted into rearward between supporting module, new-old concrete bar connecting, sealing plate it is whole Body has to be hoisted.Analysis is found, though existing sealing plate construction method achieves good engineering effort under suitable operating mode, Still there is the problems such as blocking the raising of structure of the window intensity, construction efficiency is promoted, new and old plate globality improves not solved effectively.
In consideration of it, to promote floor hole closure construction quality, improving site operation efficiency, reduction project cost, at present Urgently invention one kind can effectively promote floor hole closure construction quality, reduce site operation security risk, enhancing structure entirety Property section steel beam combined with profiled sheet block entrance construction method.
Invention content
The purpose of the present invention is to provide a kind of construction efficiency that can promote sealing hole and quality, prevent crack from occurring Section steel beam combined with profiled sheet block entrance construction method.
To realize the above-mentioned technical purpose, present invention employs following technical schemes:
A kind of section steel beam is combined with profiled sheet blocks entrance construction method, it is characterised in that including following construction procedure:
1) it connects bolt and band steel is shelved slot and preset:Concrete column and concrete slab are set on hole periphery, in concrete Setting connection bolt one in column, the setting connection bolt two in concrete slab;And make connection bolt one and reinforcing bar in concrete column Connection makes connection bolt two and bar connecting in concrete slab;In hole inner wall wall corresponding with band steel beam laying elevation Interior setting band steel shelves slot;
2) self-supporting hoistable platform is arranged:Self-supporting hoistable platform is solid by lifting upright bar, hoist rope, platform cantilever lever, platform Fixed board and platform expansion plate composition, are arranged oblique connecting rod, in platform expansion plate between platform expansion plate and platform cantilever lever Reinforcement batten is set with platform fixed plate joint, Strengthening corner muscle is set between platform fixed plate and platform cantilever lever;Pass through Lifting upright bar lifts platform cantilever lever to setting elevation together with platform fixed plate, will using rod end dead ring and anchor bolt Platform cantilever lever is connected firmly with the concrete slab to connect;Hanging ring is set in lifting upright bar;
3) jacking apparatus is laid:After the completion of self-supporting hoistable platform is laid, jacking dress is laid in the both sides on platform expansion plate It sets, and the axis of both sides jacking apparatus is made to be overlapped respectively with the longitudinal axis of section steel beam and band steel beam;
4) section steel beam and band steel back rise positioning:Reinforcement angle steel one is respectively welded on the top of section steel beam and band steel beam and mends Strong angle steel two, and section steel beam and band steel beam are respectively arranged on to the top of both sides jacking apparatus;By jacking apparatus by section steel beam and Band steel back rise to setting elevation after, so that section steel beam is connected by fastening screw two with bolt one is connect, make reinforcement angle steel one and Connection bolt one is connected by fastening screw one;Band steel is inserted at the both ends of band steel beam to shelve in slot, and make reinforcement angle steel two with Connection bolt two-way crosses the connection of fastening screw three;
5) profiled sheet, steel reinforcement cage are laid:First profiled sheet is lifted to section steel beam and band steel beam using boom hoisting Top, then by reinforcing bar cage hoisting to profiled sheet top;Then work stools plate is laid, and the stool pier of work stools plate is made to be set to shaped steel On beam and band steel beam;Profiled sheet and section steel beam and profiled sheet and band steel beam are compressed respectively by two rigid press strips, And it is fastened using fastening bolt;Convex falcon is connected between steel reinforcement cage and profiled sheet, is connected between rigid press strip and steel reinforcement cage Reinforcement angle steel one, reinforcement angle steel two are connected firmly by bar connecting section with steel reinforcement cage respectively;
6) concreting:First at least two baffles are arranged in steel reinforcement cage is divided into middle area and two by space in steel reinforcement cage A marginal zone pours to form concrete one in middle area, and baffle is taken out after one final set of concrete, then pours two marginal zones Concrete two;Casting concrete three in the gap of slot are shelved to band steel;
7) after the concrete two forms intensity, then fiber grid layer, crack resist at mortar layer, leveling mortar layer are successively carried out Construction.
Connection screw thread is arranged in the step 1) inside for connecting bolt one, connecting bolt two, connects bolt one and mixes Reinforcing bar is connected by lateral connection muscle in solidifying earth pillar, and connection bolt two is connected with reinforcing bar in concrete slab by vertically connecting reinforcing bar It connects.
" L " shape is made using I-steel or H profile steel in step 2) the platform cantilever lever, is adjusted by junction steel plate flat The elevation of platform fixed plate;It is bolted by batten between platform fixed plate and platform expansion plate and reinforcement batten;Rod end fastens Ring is " U "-shaped, and both ends are respectively provided with anchor bolt and pass through hole.
Step 3) the jacking apparatus uses hydraulic jack, in jack-up construction to multiple jackings of same axis Device synchronizes Bit andits control.
Step 4) the band steel is shelved slot and is defaulted in in the wall for blocking hole both sides, and the bottom of slot is shelved in band steel Slot bottom reinforcement angle steel is arranged in portion, and keeps the outer surface of slot bottom reinforcement angle steel concordant with wall and surface.
The step 5) the rigid press strip is in strip, and bar connecting section is preset on rigid press strip;The work stools Plate is made of stool pier, stool beam and rib, and stool pier and stool beam are made of I-steel or H profile steel, and rib is cut using steel plate; Stool beam is welded to connect with rib.
The step 6) the concrete one, concrete two, the strength grade of concrete three are identical, concrete two and coagulation Soil three is all made of prestressed concrete.
Step 7) the fiber grid layer is synchronized along the upper surface for blocking hole, concrete slab to be laid with, and along coagulation The short transverse extension 50-100cm of earth pillar, wall, using steel fibre grid or fiberglass grid;Crack resist at mortar layer and levelling Screed is layed in the top of fiber grid layer successively.
The present invention has the characteristics that following and advantageous effect
(1) self-supporting hoistable platform can effectively reduce the difficulty of work on the spot putting up platform, promote site operation efficiency and peace Quan Xing.
(2) bonding strength of effective enhancing structure, realizes different attribute construction material cooperative bearing, the entirety of lift structure Property.
(3) by the way that fiber grid layer, crack resist at mortar layer and anti-crack concrete is arranged, the general of crack generation can effectively be reduced Rate reduces the expense of later period maintenance.
Description of the drawings
Fig. 1 is that cross section is illustrated after the completion of a kind of section steel beam of the present invention combines closure structure of the window construction with profiled sheet Figure;
Fig. 2 is schematic cross-sectional view after the completion of the floor concrete casting of the holes Fig. 1;
Fig. 3 is schematic cross-sectional view after the completion of Fig. 1 profiled sheets and steel reinforcement cage laying;
Fig. 4 is Fig. 1 section steel beams and band steel beam jack-up construction schematic diagram;
Fig. 5 is that Fig. 1 band steel beams insertion band steel shelves sectional schematic diagram after slot;
Fig. 6 is the schematic cross-sectional view of band steel beam and wall connecting part after the completion of the construction of Fig. 1 structure of the window;
Fig. 7 is Fig. 1 rod end dead ring schematic cross-sectional views;
Fig. 8 is Fig. 1 work stools plate structure schematic diagrams;
Fig. 9 is that a kind of section steel beams of Fig. 1 combine closure structure of the window construction process figure with profiled sheet.
In figure:1- section steel beams;2- profiled sheets;3- concrete columns;4- connections bolt one;5- concrete slabs;6- connection spiral shells Bolt two;Reinforcing bar in 7- concrete columns;Reinforcing bar in 8- concrete slabs;9- lifts by crane upright bar;10- hoist ropes;11- platform cantilever levers; 12- platform fixed plates;13- platform expansion plates;The oblique connecting rods of 14-;15- reinforcement battens;16- Strengthening corner muscle;17- rod ends fasten Ring;18- anchor bolts;19- jacking apparatus;20- band steel beams;21- reinforcement angle steel one;22- reinforcement angle steel two;23- fastening screws One;24- fastening screws two;25- band steels shelve slot;26- fastening screws three;27- steel reinforcement cages;28- work stools plates;29- stool piers; 30- rigidity press strips;31- fastening bolts;The convex falcon of 32- connections;33- bar connecting sections;34- baffles;35- concrete one;36- coagulations Soil two;37- concrete three;38- fiber grid layers;39- crack resist at mortar layers;40- leveling mortar layers;41- lateral connection muscle;42- Vertical connection reinforcing bar;43- junction steel plates;44- crab bolt;45- anchor bolts pass through hole;46- slot bottom reinforcement angle steel;47- stools Beam;48- ribs;49- hanging rings;50- walls.
Specific embodiment
The requirement of the cutting Hoisting Construction Technology of section steel beam and band steel beam, site welding construction technical requirement, concrete match ratio Required than design and pouring construction technology etc., it is repeated no more in present embodiment, emphasis illustrates that the present invention relates to the implementations of structure Mode.
Fig. 1 is that cross section is illustrated after the completion of a kind of section steel beam of the present invention combines closure structure of the window construction with profiled sheet Figure, Fig. 2 are schematic cross-sectional views after the completion of the floor concrete casting of the holes Fig. 1, and Fig. 3 is that Fig. 1 profiled sheets and steel reinforcement cage are laid Schematic cross-sectional view after the completion, Fig. 4 are Fig. 1 section steel beams and band steel beam jack-up construction schematic diagram, and Fig. 5 is that the insertion of Fig. 1 band steel beams is flat Steel shelves sectional schematic diagram after slot, and Fig. 6 is that band steel beam and the cross section of wall connecting part show after the completion of Fig. 1 structure of the window is constructed It is intended to, Fig. 7 is Fig. 1 rod end dead ring schematic cross-sectional views, and Fig. 8 is Fig. 1 work stools plate structure schematic diagrams.Referring to Fig.1~Fig. 8 institutes Show, a kind of section steel beam of the present invention is combined with profiled sheet blocks entrance construction method, concrete column (3) and building on hole periphery Setting connection bolt in plate;Self-supporting hoistable platform is set at hole, and on the platform expansion plate (13) of self-supporting hoistable platform Jacking apparatus (19) is set;After section steel beam (1) and band steel beam (20) jacking to setting elevation, make section steel beam (1), section steel beam (1), reinforcement angle steel one (21) and reinforcement angle steel two (22) are bolted with connecting respectively, and the both ends of band steel are shelved with band steel Slot (25) connects;Profiled sheet (2), steel reinforcement cage (27) are set gradually on the top of section steel beam (1) and band steel;Convex falcon will be connected (32), after bar connecting section (33), Bolted angle connection muscle and steel reinforcement cage (27) are connected firmly, the concrete at position among plate is first poured One (35) pour the concrete two (36) of plate edge again after concrete one (35) final set;Fiber lattice are finally carried out successively The construction of grid layer (38), crack resist at mortar layer (39), leveling mortar layer (40).
The planar dimension at hole to be closed is 2m × 3m.
Section steel beam (1) long 2m uses strength grade for the 25# equal leg angle beams of Q235B.Band steel beam (20) is using intensity etc. Grade is Q235B, and size is the H profile steel of 150 × 150 × 7 × 10mm.
Profiled sheet (2) uses strength grade for Q235B, wave height 51mm, pitch of waves 342mm, effective width 1025mm, thickness The floor support plate of 0.8mm.
Concrete column (3) sectional dimension is 500 × 500mm, strength grade of concrete C35.
Connection bolt one (4), connection bolt two (6) match with M22 screw rods, length 150mm.
Concrete slab (5) thickness 110mm, strength grade of concrete C30.
Reinforcing bar (7) is using the spiral of a diameter of 25mm in concrete column, and reinforcing bar (8) is using a diameter of in concrete slab The spiral of 12mm.
Upright bar (9) high 2m is lifted by crane, uses strength grade for Q235B, size is the H profile steel of 250 × 250 × 9 × 14mm.It rises Lifting rope rope (10) uses the cable wire of a diameter of 31.5mm;Platform cantilever lever (11) uses strength grade for Q235B, size 150 The H profile steel of × 150 × 7 × 10mm;Platform fixed plate (12) and platform expansion plate (13) width 1m, long 3m are all made of thick 2mm, strong The steel plate that degree grade is Q235B is cut.
Oblique connecting rod (14), Strengthening corner muscle (16) be all made of strength grade be Q235B, size be 100 × 100 × 6 × The H profile steel of 8mm.
The width of reinforcement batten (15) be 0.3m, a length of 3m, use thick 2mm, strength grade for Q235B steel plate cutting and At.
The width of rod end dead ring (17) be 0.2m, a height of 0.2m, take the shape of the letter U, it is prefabricated using the steel plate of wide 0.1m, thickness 1mm and At;It is 30mm that preset anchor bolt, which passes through the aperture of hole (45), on rod end dead ring (17).
Anchor bolt (18) uses the stainless steel bolt of M27 × 150mm.
Jacking apparatus (19) uses the hydraulic jack of 5t.
Reinforcement angle steel one (21), reinforcement angle steel two (22) width be 200mm, the length of side on both sides is 300mm, using thickness 2mm, the steel plate that strength grade is Q235B are cut.
Fastening screw one (23), fastening screw two (24), fastening screw three (26) are all made of the stainless steel of M22 × 150mm Bolt.
The height that band steel shelves slot (25) is 400mm, width 200mm.
Steel reinforcement cage (27) is made of the plain steel-bar of a diameter of 10mm, bar spacing 100mm, the spacing of double steel bar For 80mm.
Work stools plate (28) is made of stool pier (29), stool beam (47) and rib (48), the wherein high 20cm of stool pier, stool beam (47) Long 2m, rib (48) long 50cm;It is Q235B that stool pier (29) and stool beam (47), which are all made of strength grade, and size is 150 × 150 × 7 The H profile steel of × 10mm;Rib (48) is cut using the steel plate of thickness 2mm.
The width of rigid press strip (30) is 200mm, a length of 300mm, and thick 1mm, strength grade is used to be cut for the steel plate of Q235B It forms.
Fastening bolt (31) uses the stainless steel bolt of M22 × 150mm.
Convex falcon (32) high 30mm is connected, using the spiral of diameter 12mm, is welded to connect with profiled sheet (2).
Bar connecting section (33) long 50mm is welded to connect using the spiral of diameter 12mm with rigid press strip (30).
Baffle (34) uses the plastic plate of thickness 2mm.
The strength grade of concrete one (35), concrete two (36) and concrete three (37) is C30, wherein concrete one (35) common pea gravel concreten is used;Concrete two (36) and concrete three (37) use slightly expanded concrete.
Fiber grid layer (38) uses GGA2525 fiberglass grids.
Crack resist at mortar layer (39) uses strength grade for the crack resist at mortar of M20.
Leveling mortar layer (40) uses strength grade for the conventional cement mortar of M20.
Lateral connection muscle (41) and vertical connection reinforcing bar (42) are all made of the spiral of a diameter of 20mm.
Junction steel plate (43) uses the steel plate that thickness is Q235B for 1cm, strength grade.
Bar crab bolt (44) uses the stainless steel bolt of M22 × 150mm.
The width of slot bottom reinforcement angle steel (46) be 200mm, the length of side on both sides is 300mm, use thick 2mm, strength grade for The steel plate of Q235B is cut.
Hanging ring (49) uses bearing capacity for 3 tons, and internal diameter is the hanging ring of 50mm.
Wall (50) is the clay tile wall of 370mm thickness.
Fig. 9 is that a kind of section steel beams of Fig. 1 combine closure structure of the window construction process figure, with reference to shown in Fig. 8, one with profiled sheet It includes following construction procedure that kind section steel beam, which combines with profiled sheet and blocks entrance construction method,:
1) it connects bolt and band steel is shelved slot (25) and preset:The setting connection bolt in the concrete column (3) on hole periphery One (4), the setting connection bolt two (6) in the concrete slab (5) on hole periphery;And make connection bolt one (4) and concrete column Interior reinforcing bar (7) connection, makes connection bolt two (6) be connect with reinforcing bar in concrete slab (8);Elevation phase is being laid with band steel beam (20) Setting band steel shelves slot (25) in corresponding wall (50);
2) self-supporting hoistable platform is arranged:Self-supporting hoistable platform is by lifting upright bar (9), hoist rope (10), platform cantilever lever (11), platform fixed plate (12) and platform expansion plate (13) composition, between platform expansion plate (13) and platform cantilever lever (11) Oblique connecting rod (14) is set, reinforcement batten (15) is set in platform expansion plate (13) and platform fixed plate (12) joint, Strengthening corner muscle (16) is set between platform fixed plate (12) and platform cantilever lever (11);By lifting by crane upright bar (9) by platform cantilever After bar (11) is together with platform fixed plate (12) lifting to setting elevation, it will be put down using rod end dead ring (17) and anchor bolt (18) Platform cantilever lever (11) is connected firmly with the concrete slab (5) to connect;The setting hanging ring (49) in lifting upright bar (9);
3) jacking apparatus (19) is laid:After the completion of self-supporting hoistable platform is laid, jacking is laid on platform expansion plate (13) Device (19), and the axis of jacking apparatus (19) is made to be overlapped with the axis of section steel beam (1) and band steel beam (20);
4) section steel beam (1) and band steel beam (20) jacking positioning:It is respectively welded on the top of section steel beam (1) and band steel beam (20) Reinforcement angle steel one (21) and reinforcement angle steel two (22), and section steel beam (1) and band steel beam (20) are respectively arranged on jacking apparatus (19) Top;By jacking apparatus (19) will section steel beam (1) and band steel beam (20) jacking to setting elevation after, make section steel beam (1) with It connects bolt one (4) to connect by fastening screw one (23), make reinforcement angle steel one (21) and connect bolt one (4) by fastening spiral shell Bar two (24) connects;Band steel is inserted at the both ends of band steel beam (20) to shelve in slot (25), and makes reinforcement angle steel two (22) and connect Bolt two (6) is connected by fastening screw three (26);
5) profiled sheet (2), steel reinforcement cage (27) are laid:First profiled sheet (2) is lifted to section steel beam using boom hoisting (1) and the top of band steel beam (20), then by steel reinforcement cage (27) lifting to profiled sheet (2) top;Then work stools plate is laid (28), and the stool pier (29) of work stools plate (28) is made to be set on section steel beam (1) and band steel beam (20);It will by rigid press strip (30) Profiled sheet (2) is compressed with section steel beam (1) and band steel beam (20), and is fastened using fastening bolt (31);Convex falcon will be connected respectively (32), bar connecting section (33), reinforcement angle steel one (21), reinforcement angle steel two (22) and steel reinforcement cage (27) are connected firmly;
6) concreting:Baffle (34) is first set between floorslab concrete one (35) and concrete two (36), then is poured The concrete one (35) for building position among plate takes out baffle (34) after concrete one (35) final set, then pours edges of boards edge The concrete two (36) of position;Casting concrete three (37) in the gap of slot (25) is shelved to band steel;
7) fiber grid layer (38), crack resist at mortar layer (39), leveling mortar layer (40) construction:Concrete two (36) forms strong After degree, then the construction of fiber grid layer (38), crack resist at mortar layer (39), leveling mortar layer (40) is carried out successively.

Claims (8)

1. a kind of section steel beam is combined with profiled sheet blocks entrance construction method, it is characterised in that including following construction procedure:
1) it connects bolt and band steel is shelved slot (25) and preset:On hole periphery, concrete column (3) and concrete slab (5) are set, Setting connection bolt one (4) in concrete column (3), the setting connection bolt two (6) in concrete slab (5);And make connection bolt One (4) are connect with reinforcing bar in concrete column (7), and connection bolt two (6) is made to be connect with reinforcing bar in concrete slab (8);With band steel Beam (20) lays setting band steel in the corresponding hole inner wall wall (50) of elevation and shelves slot (25);
2) self-supporting hoistable platform is arranged:Self-supporting hoistable platform by lifting upright bar (9), hoist rope (10), platform cantilever lever (11), Platform fixed plate (12) and platform expansion plate (13) composition, are arranged oblique between platform expansion plate (13) and platform cantilever lever (11) It is solid in platform in platform expansion plate (13) and platform fixed plate (12) joint setting reinforcement batten (15) to connecting rod (14) Strengthening corner muscle (16) is set between fixed board (12) and platform cantilever lever (11);By lifting by crane upright bar (9) by platform cantilever lever (11) After platform fixed plate (12) lifting to setting elevation, using rod end dead ring (17) and anchor bolt (18) by platform cantilever Bar (11) is connected firmly with the concrete slab (5) to connect;The setting hanging ring (49) in lifting upright bar (9);
3) jacking apparatus (19) is laid:After the completion of self-supporting hoistable platform is laid, top is laid in the both sides on platform expansion plate (13) Device (19) is risen, and the axis of both sides jacking apparatus (19) is made to be overlapped respectively with the longitudinal axis of section steel beam (1) and band steel beam (20);
4) section steel beam (1) and band steel beam (20) jacking positioning:Reinforcement is respectively welded on the top of section steel beam (1) and band steel beam (20) Angle steel one (21) and reinforcement angle steel two (22), and section steel beam (1) and band steel beam (20) are respectively arranged on both sides jacking apparatus (19) Top;By jacking apparatus (19) will section steel beam (1) and band steel beam (20) jacking to setting elevation after, make section steel beam (1) with It connects bolt one (4) to connect by fastening screw two (24), make reinforcement angle steel one (21) and connect bolt one (4) by fastening spiral shell Bar one (23) connects;Band steel is inserted at the both ends of band steel beam (20) to shelve in slot (25), and makes reinforcement angle steel two (22) and connect Bolt two (6) is connected by fastening screw three (26);
5) profiled sheet (2), steel reinforcement cage (27) are laid:First profiled sheet (2) is lifted to section steel beam (1) using boom hoisting and The top of band steel beam (20), then steel reinforcement cage (27) is lifted to profiled sheet (2) top;Then work stools plate (28) is laid, and The stool pier (29) of work stools plate (28) is set to be set on section steel beam (1) and band steel beam (20);Respectively by two rigid press strips (30) Profiled sheet (2) and section steel beam (1) and profiled sheet (2) and band steel beam (20) are compressed, and tight using fastening bolt (31) Gu;Convex falcon (32) is connected between steel reinforcement cage (27) and profiled sheet (2), is connected between rigid press strip (30) and steel reinforcement cage (27) Bar connecting section (33) is connect, reinforcement angle steel one (21), reinforcement angle steel two (22) and steel reinforcement cage (27) are connected firmly respectively;
6) concreting:During first steel reinforcement cage (27) interior space is divided by least two baffles of setting (34) in steel reinforcement cage (27) Between area and two marginal zones, pour to form concrete one (35) in middle area, baffle taken out after concrete one (35) final set (34), the concrete two (36) of two marginal zones is then poured;Casting concrete three in the gap of slot (25) is shelved to band steel (37);
7) fiber grid layer (38), crack resist at mortar layer (39), leveling mortar layer (40) construction:Concrete two (36) forms intensity Afterwards, then successively the construction of fiber grid layer (38), crack resist at mortar layer (39), leveling mortar layer (40) is carried out.
2. a kind of section steel beam according to claim 1 is combined with profiled sheet blocks entrance construction method, it is characterised in that: Connection screw thread, connection bolt one (4) and concrete is arranged in step 1) the connection bolt one (4), the inside for connecting bolt two (6) Reinforcing bar (7) is connected by lateral connection muscle (41) in column, and connection bolt two (6) is with reinforcing bar in concrete slab (8) by vertically connecting Connect reinforcing bar (42) connection.
3. a kind of section steel beam according to claim 1 is combined with profiled sheet blocks entrance construction method, it is characterised in that: " L " shape is made using I-steel or H profile steel in step 2) the platform cantilever lever (11), and it is solid to adjust platform by junction steel plate (43) The elevation of fixed board (12);Pass through a crab bolt between platform fixed plate (12) and platform expansion plate (13) and reinforcement batten (15) (44) it connects;Rod end dead ring (17) is " U "-shaped, and both ends are respectively provided with anchor bolt and pass through hole (45).
4. a kind of section steel beam according to claim 1 is combined with profiled sheet blocks entrance construction method, it is characterised in that: Step 3) the jacking apparatus (19) uses hydraulic jack, in jack-up construction to multiple jacking apparatus (19) of same axis Synchronize Bit andits control.
5. a kind of section steel beam according to claim 1 is combined with profiled sheet blocks entrance construction method, it is characterised in that: Step 4) the band steel is shelved slot (25) and is defaulted in in the wall (50) for blocking hole both sides, and the bottom of slot (25) is shelved in band steel Slot bottom reinforcement angle steel (46) is arranged in portion, and keeps the outer surface of slot bottom reinforcement angle steel (46) concordant with wall (50) metope.
6. a kind of section steel beam according to claim 1 is combined with profiled sheet blocks entrance construction method, it is characterised in that: Step 5) the rigid press strip (30) is in strip, and bar connecting section (33) is preset on rigid press strip (30);The work stools Plate (28) is made of stool pier (29), stool beam (47) and rib (48), and stool pier (29) and stool beam (47) use I-steel or H profile steel system At rib (48) is cut using steel plate;Stool beam (47) is welded to connect with rib (48).
7. a kind of section steel beam according to claim 1 is combined with profiled sheet blocks entrance construction method, it is characterised in that: Step 6) the concrete one (35), concrete two (36), the strength grade of concrete three (37) are identical, concrete two (36) and Concrete three (37) is all made of prestressed concrete.
8. a kind of section steel beam according to claim 1 is combined with profiled sheet blocks entrance construction method, it is characterised in that: Step 7) the fiber grid layer (38) synchronizes along the upper surface for blocking hole, concrete slab (5) and is laid with, and along concrete column (3), the short transverse of wall (50) extends 50-100cm, using steel fibre grid or fiberglass grid;Crack resist at mortar layer (39) and leveling mortar layer (40) is layed in the top of fiber grid layer (38) successively.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110158788A (en) * 2019-05-27 2019-08-23 中国十七冶集团有限公司 A kind of construction method of composite floor system and wall junction self waterproofing

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JP2008031821A (en) * 2006-06-29 2008-02-14 Ube Ind Ltd Method and structure for reinforcing opening of concrete beam
CN103437499A (en) * 2013-09-12 2013-12-11 南京工业大学 Web-punched profiled steel plate combination beam with ribbed stiffeners and mounting method of combination beam
CN106760500A (en) * 2017-03-07 2017-05-31 中国五冶集团有限公司 A kind of formwork support structure of hole to be provided top cover construction
CN106801511A (en) * 2017-02-27 2017-06-06 中建八局第三建设有限公司 A kind of super large reserved opening hanging mould structure and its construction method

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Publication number Priority date Publication date Assignee Title
JP2008031821A (en) * 2006-06-29 2008-02-14 Ube Ind Ltd Method and structure for reinforcing opening of concrete beam
CN103437499A (en) * 2013-09-12 2013-12-11 南京工业大学 Web-punched profiled steel plate combination beam with ribbed stiffeners and mounting method of combination beam
CN106801511A (en) * 2017-02-27 2017-06-06 中建八局第三建设有限公司 A kind of super large reserved opening hanging mould structure and its construction method
CN106760500A (en) * 2017-03-07 2017-05-31 中国五冶集团有限公司 A kind of formwork support structure of hole to be provided top cover construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110158788A (en) * 2019-05-27 2019-08-23 中国十七冶集团有限公司 A kind of construction method of composite floor system and wall junction self waterproofing

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