CN108396878B - 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
CN108396878B
CN108396878B CN201810266827.5A CN201810266827A CN108396878B CN 108396878 B CN108396878 B CN 108396878B CN 201810266827 A CN201810266827 A CN 201810266827A CN 108396878 B CN108396878 B CN 108396878B
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steel
concrete
steel beam
platform
profiled sheet
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CN108396878A (en
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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)
  • Working Measures On Existing Buildindgs (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (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, it is bolted section steel beam, reinforcement angle steel one and reinforcement angle steel two with connection respectively, 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, reinforcing bar linkage 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;Finally successively carry out the construction of fiber grid layer, crack resist at mortar layer, leveling mortar layer.The present invention can not only promote the construction efficiency and quality of sealing hole, can also prevent plate surface crack.

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, in particular to a kind of section steel beam combines closure hole with profiled sheet and applies Work method belongs to decorative engineering field, the hole sealing work suitable for neighbouring wall column.
Background technique
With China's expanding economy, construction industry is also applied in continuous innovation and development, modern tall residential project structure Working hour, because considering structure of modification caused by incomplete or installation profession such as needs at reasons early period the case where, are more and more.Work as architectural engineering After main 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 the operation of structure sealing plate, at a current problem for needing to solve.
Currently, sealing plate construction generallys use bracket, formwork from the bottom to top, sealing plate construction, the construction operation side are successively carried out Formula needs successively set bracket, template, and the construction period is longer, and new-old concrete seam crossing is easy to crack.Having 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 between supporting module, new-old concrete by post-installing rebar connection, 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 condition, 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 Floor hole closure construction quality can effectively be promoted, reduce site operation security risk, enhancing structure entirety by urgently inventing one kind Property section steel beam combined with profiled sheet block entrance construction method.
Summary of the invention
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 skills Art scheme:
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 being set on hole periphery, in concrete Setting connection bolt one in column, the setting connection bolt two in concrete slab;And make to connect reinforcing bar in bolt one and concrete column Connection connect connection bolt two with reinforcing bar 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 two sides on platform expansion plate It sets, and is overlapped the axis of two sides jacking apparatus with the longitudinal axis of section steel beam and band steel beam respectively;4) section steel beam and band steel back It rises positioning: being respectively welded reinforcement angle steel one and reinforcement angle steel two on the top of section steel beam and band steel beam, and by section steel beam and band steel Beam is respectively arranged on the top of two sides jacking apparatus;After section steel beam and band steel back are risen to setting elevation by jacking apparatus, make Section steel beam with connect bolt one and connected by fastening screw two, connect reinforcement angle steel one with connecting bolt one and pass through fastening screw one It connects;The both ends insertion band steel of band steel beam is shelved in slot, and reinforcement angle steel two is made to cross the company of fastening screw three with bolt two-way is connect It connects;
5) profiled sheet, steel reinforcement cage are laid: first being lifted profiled sheet 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 fashioned iron 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;The convex falcon of connection is connected between steel reinforcement cage and profiled sheet, rigid press strip and steel reinforcement cage it Between connect reinforcing bar linkage section, reinforcement angle steel one, reinforcement angle steel two are connected firmly 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 for space in steel reinforcement cage A marginal zone pours to form concrete one in middle area, takes out baffle 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 between platform fixed plate and platform expansion plate and reinforcement batten by batten;Rod end fastening Ring is " U "-shaped, and both ends are respectively provided with anchor bolt across 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 two sides, shelves the bottom of slot 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 long strip, and reinforcing bar linkage 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 and rib are welded to connect.
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 successively layed in the top of fiber grid layer.
The present invention has the characteristics that following and beneficial 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 setting fiber grid layer, crack resist at mortar layer and anti-crack concrete, it can effectively reduce the general of crack generation Rate reduces the expense of later period maintenance.
Detailed description of the invention
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 hole Fig. 1;
Fig. 3 is schematic cross-sectional view after the completion of Fig. 1 profiled sheet and steel reinforcement cage laying;
Fig. 4 is Fig. 1 section steel beam and band steel beam jack-up construction schematic diagram;
Fig. 5 is that Fig. 1 band steel beam 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 view;
Fig. 8 is Fig. 1 work stools plate structural schematic diagram;
Fig. 9 is that a kind of section steel beam of Fig. 1 combines closure structure of the window construction process figure with profiled sheet.
In figure: 1- section steel beam;2- profiled sheet;3- concrete column;4- connection bolt one;5- concrete slab;6- connection spiral shell Bolt two;Reinforcing bar in 7- concrete column;Reinforcing bar in 8- concrete slab;9- lifts by crane upright bar;10- hoist rope;11- platform cantilever lever; 12- platform fixed plate;13- platform expansion plate;The oblique connecting rod of 14-;15- reinforcement batten;16- Strengthening corner muscle;The fastening of 17- rod end Ring;18- anchor bolt;19- jacking apparatus;20- band steel beam;21- reinforcement angle steel one;22- reinforcement angle steel two;23- fastening screw One;24- fastening screw two;25- band steel shelves slot;26- fastening screw three;27- steel reinforcement cage;28- work stools plate;29- stool pier; 30- rigidity press strip;31- fastening bolt;The convex falcon of 32- connection;33- reinforcing bar linkage section;34- baffle;35- concrete one;36- coagulation Soil two;37- concrete three;38- fiber grid layer;39- crack resist at mortar layer;40- leveling mortar layer;41- lateral connection muscle;42- Vertical connection reinforcing bar;43- junction steel plate;44- crab bolt;45- anchor bolt passes through hole;46- slot bottom reinforcement angle steel;47- stool Beam;48- rib;49- hanging ring;50- wall.
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 It than design and pouring construction technical requirements etc., 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 hole Fig. 1, and Fig. 3 is that Fig. 1 profiled sheet and steel reinforcement cage are laid Schematic cross-sectional view after the completion, Fig. 4 are Fig. 1 section steel beam and band steel beam jack-up construction schematic diagram, and Fig. 5 is that the insertion of Fig. 1 band steel beam 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 view, and Fig. 8 is Fig. 1 work stools plate structural schematic diagram.Referring to Fig.1~Fig. 8 institute 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 It is arranged jacking apparatus (19);After section steel beam (1) and band steel beam (20) jacking to setting elevation, make section steel beam (1), reinforcement angle steel One (21) and reinforcement angle steel two (22) are bolted with connection respectively, and slot (25) is shelved with band steel in the both ends of band steel and is connect; Profiled sheet (2), steel reinforcement cage (27) are set gradually on the top of section steel beam (1) and band steel;Convex falcon (32), reinforcing bar connection will be connected After section (33), Bolted angle connection muscle and steel reinforcement cage (27) are connected firmly, the concrete one (35) at position among plate is first poured, to coagulation The concrete two (36) of plate edge is poured after native (35) final set again;Finally successively carry out fiber grid layer (38), anticracking The construction of screed (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 beam of Q235B.Band steel beam (20) is using intensity etc. Grade is Q235B, the H profile steel having a size 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 rod, length 150mm.
Concrete slab (5) thickness 110mm, strength grade of concrete C30.
Reinforcing bar (7) uses diameter for the spiral of 25mm in concrete column, in concrete slab reinforcing bar (8) use diameter for The spiral of 12mm.
Upright bar (9) high 2m is lifted by crane, uses strength grade for Q235B, the H profile steel having a size of 250 × 250 × 9 × 14mm.It rises Lifting rope rope (10) uses diameter for the cable wire of 31.5mm;Platform cantilever lever (11) uses strength grade for Q235B, having a size of 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.
It is Q235B that oblique connecting rod (14), Strengthening corner muscle (16), which are all made of strength grade, having a size of 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 be Q235B steel plate cut and At.
The width of rod end dead ring (17) be 0.2m, a height of 0.2m, be in U-shape, 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 side length 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.
Band steel shelve the height of slot (25) be 400mm, width 200mm.
Steel reinforcement cage (27) uses diameter to be made of the plain steel-bar 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), wherein the 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, having a size of 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 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).
Reinforcing bar linkage 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 grid.
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 that diameter is 20mm.
Junction steel plate (43) uses with a thickness of 1cm, strength grade as the steel plate of Q235B.
Bar crab bolt (44) uses the stainless steel bolt of M22 × 150mm.
The width of slot bottom reinforcement angle steel (46) be 200mm, the side length 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 beam of Fig. 1 combines closure structure of the window construction process figure, referring 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), setting connection bolt two (6) in the concrete slab (5) on hole periphery;And make to connect bolt one (4) and concrete column Interior reinforcing bar (7) connection, connect connection bolt two (6) 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) are set, reinforcement batten (15) are set in platform expansion plate (13) and platform fixed plate (12) joint, Strengthening corner muscle (16) are set between platform fixed plate (12) and platform cantilever lever (11);By lifting by crane upright bar (9) for 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;Hanging ring (49) are set 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 it is overlapped the axis of jacking apparatus (19) and the axis of section steel beam (1) and band steel beam (20);
4) it section steel beam (1) and band steel beam (20) jacking positioning: 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), reinforcement angle steel one (21) is made to pass through fastening spiral shell with bolt one (4) is connect Bar two (24) connection;The both ends of band steel beam (20) insertion band steel is shelved in slot (25), and make reinforcement angle steel two (22) with connect Bolt two (6) is connected by fastening screw three (26);
5) profiled sheet (2), steel reinforcement cage (27) are laid: first being lifted profiled sheet (2) 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 it is set to the stool pier (29) of work stools plate (28) on section steel beam (1) and band steel beam (20);It will by rigid press strip (30) Profiled sheet (2) and section steel beam (1) and band steel beam (20) compress, and are fastened using fastening bolt (31);Convex falcon will be connected respectively (32), reinforcing bar linkage section (33), reinforcement angle steel one (21), reinforcement angle steel two (22) and steel reinforcement cage (27) are connected firmly;
6) concreting: baffle (34) first are set between floorslab concrete one (35) and concrete two (36), then are 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 successively carry out the construction of fiber grid layer (38), crack resist at mortar layer (39), leveling mortar layer (40).

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: concrete column (3) and concrete slab (5) are set on hole periphery, Setting connection bolt one (4) in concrete column (3), setting connection bolt two (6) in concrete slab (5);And make to connect bolt One (4) are connect with reinforcing bar in concrete column (7), connect connection bolt two (6) 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 be 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) are set between fixed board (12) and platform cantilever lever (11);By lifting by crane upright bar (9) for 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;Hanging ring (49) are set 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 two sides on platform expansion plate (13) It rises device (19), and is overlapped the axis of two sides jacking apparatus (19) with the longitudinal axis of section steel beam (1) and band steel beam (20) respectively;
4) reinforcement section steel beam (1) and band steel beam (20) jacking positioning: 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 two 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), reinforcement angle steel one (21) is made to pass through fastening spiral shell with bolt one (4) is connect Bar one (23) connection;The both ends of band steel beam (20) insertion band steel is shelved in slot (25), and make reinforcement angle steel two (22) with 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) are lifted to section steel beam (1) using boom hoisting and The top of band steel beam (20), then steel reinforcement cage (27) are lifted to profiled sheet (2) top;Then work stools plate (28) are laid, and It is set to the stool pier (29) of work stools plate (28) 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;The convex falcon (32) of connection is connected between steel reinforcement cage (27) and profiled sheet (2), in rigid press strip (30) and steel reinforcement cage (27) Between connect reinforcing bar linkage section (33), reinforcement angle steel one (21), reinforcement angle steel two (22) are connect jail with steel reinforcement cage (27) respectively Gu;
6) concreting: during first steel reinforcement cage (27) interior space is divided by setting at least two baffles (34) in steel reinforcement cage (27) Between area and two marginal zones, pour to form concrete one (35) in middle area, take out baffle 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 is arranged in step 1) connection bolt one (4), the inside for connecting bolt two (6), connects bolt one (4) and concrete 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 across 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 two sides, shelves the bottom of slot (25) in band steel Slot bottom reinforcement angle steel (46) are arranged in portion, and keep 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 long strip, presets reinforcing bar linkage section (33) 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) and rib (48) are welded to connect.
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 successively layed in the top of fiber grid layer (38).
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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

Citations (4)

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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 plate holed profiled steel sheet combination beam with stiffening ribs and installation 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
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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 plate holed profiled steel sheet combination beam with stiffening ribs and installation method
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

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