CN108019040B - A kind of high-rise building transfer floor Bailey bracket platform construction method - Google Patents

A kind of high-rise building transfer floor Bailey bracket platform construction method Download PDF

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Publication number
CN108019040B
CN108019040B CN201710326359.1A CN201710326359A CN108019040B CN 108019040 B CN108019040 B CN 108019040B CN 201710326359 A CN201710326359 A CN 201710326359A CN 108019040 B CN108019040 B CN 108019040B
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construction
placement
bailey
spaced apart
jacking
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CN108019040A (en
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邓凯
姜方敏
吴刚
刘成
吴碧桥
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Jiangsu Huajian Construction Co Ltd
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Jiangsu Huajian Construction Co Ltd
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    • 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
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work

Abstract

The present invention relates to a kind of high-rise building transfer floor Bailey bracket platform construction methods, belong to technical field of building construction.This method mainly includes installation lattice column, sets up Bailey beam, lift I-beam, build big beam form bottom, sandwich boards for construction plate, construction conversion layer step.Compared with prior art, easy to implement, safe and reliable present invention can ensure that under the premise of quality, there are many remarkable advantages.

Description

A kind of high-rise building transfer floor Bailey bracket platform construction method
Technical field
The present invention relates to a kind of building conversion layer Bailey bracket platform, especially a kind of high-rise building transfer floor Bailey bracket is flat Platform, while construction method is also related to, belong to technical field of building construction.
Background technique
Skyscraper usually needs to construct conversion layer Bailey bracket platform because of the building structure variation between floor.
Retrieval is it is found that application No. is 201010135856.1 Chinese invention patents to disclose a kind of skyscraper beam type knot The construction method of structure conversion layer, this method include the step such as design and arrangement, reinforced bar engineering, concrete works of form bracing system Suddenly, it is introduced that having the advantages that high-efficient, quality is easy to control, is low cost, easy for construction.However actually due to its conversion layer Using full hall scaffold, support shuttering makes of rough ground, not only needs to put into more artificial, material, but also there are following Problem: 1) three layer full hall support frame be set up need in underground and the first floor (- 2, -1,1), it is difficult to guarantee that the support system upright bar of each layer exists Same position, stress are bad;2) the full hall support frame of subterranean layer must could when first floor beam slab concrete reaches design strength It removes, therefore influences the construction period of conversion layer;3) it is only applicable to conversion layer and is in low layer (such as two layers).
Application No. is 201410337666.6 Chinese invention patents to disclose a kind of Bailey beam pendent form support system Construction, the vertically and horizontally stress truss including Bailey beam composition;Sunpender is equipped in lateral Bailey beam, the sunpender passes through mixed Solidifying soil layer construction bed die hangs two-way I-steel bearing platform;Steel pipe scaffold form bracing system is equipped with above the platform, The transverse direction Bailey beam is arranged vertically on longitudinal Bailey beam by spacing, and longitudinal Bailey beam is supported on frame structure or interim branch In support.Its engineering method includes: to increase build-up layers top to set up Bailey beam form bracing system suspension system, lower laying falsework behaviour in advance Make platform.Its advantage is that be not take up construction site, suitable for armored concrete or the aerial vestibule of shaped steel combination structure, it is tall and big Front yard and conversion layer engineering cast-in-place concrete construction are particularly suitable for that the addition of stress relationship does not occur with original structure.Practice Show 1) the above-mentioned prior art has the following disadvantages: when lacking frame support structure, it is necessary to temporary support be set and undertake Bei Lei Beam, construction inconvenience;2) form bracing system needs to carry out precompressed to bracket after the completion of setting up, and difficulty of construction is larger.Especially, Concrete structure bed die is supported on bearing platform in suspension, not only high to the quality requirement of screw-thread steel sunpender, Er Qierong Vulnerable to construction loading effect, because the quality of sunpender directly affects the stability of " bearing platform " of flat thread steel sunpender suspension, And hanging rod structure to bear in work progress, the horizontal impact ability of the generations such as casting concrete it is extremely limited, therefore, it is difficult to protect It is fixed to keep steady, and not only influences construction quality, there is also some potential safety problemss.
Summary of the invention
It is an object of the invention to: in view of the problems of the existing technology, propose it is a kind of it is not only easy to implement, be easy to guarantee Quality, and safe and reliable high-rise building transfer floor Bailey bracket platform construction method.
In order to achieve the above object, high-rise building transfer floor Bailey bracket platform construction method of the present invention includes following basic step It is rapid:
The first step, installation lattice column --- it installs respectively the position below the corresponding conversion layer crossbeam of building basis two sides The lattice column being spaced apart, capital are extremely concordant with floor to be converted;
Second step sets up Bailey beam --- and lifting sets up one group and is respectively supported on ipsilateral lattice column and floor to be converted Bailey beam;
Third step, lifting I-beam --- lifting erection is fixed in Bailey beam and one group of both ends normal thereto are overhanging It is spaced apart I-beam, safe protective covering is laid on I-beam and overhanging end builds builder's jack;
4th step builds big beam form bottom --- the vertical jacking being spaced apart, and the placement point at the top of jacking are propped up on I-beam Not Zhi Cheng crossbeam and interlayer formwork for placing flatrack steel pipe;
5th step, sandwich boards for construction plate --- beam placement template is constructed on jacking support flatrack steel pipe and is connected to two Interlayer formwork for placing between in the middle part of the beam placement template of side, and I-girder is disposed in beam placement template, bind steel Muscle after-pouring concrete, beam placement template are poured to half height;
6th step, construction conversion layer --- in the sandwich plate and height poured across the vertical top being spaced apart of branch on I-steel Support, and at the top of the jacking after the flatrack steel pipe of placement support conversion layer formwork for placing, building is connected to two sides beam placement template Conversion layer formwork for placing between top, and reinforcing bar has been bound in conversion layer formwork for placing, it is poured together with crossbeam top Concrete.
Compared with prior art, ideal without setting up full hall support frame, load shape body using method of the invention, it is easy to protect It the construction period for hindering conversion layer, is not limited by conversion layer floor position;And it is easy to implement, support the Bailey bracket platform of formation It is reliable and stable, it is ensured that quality and construction safety.
The present invention further improves, the lattice column of the first step using tower crane standard tower section from bottom to top section by section Splicing;When splicing installation, using tool-type operating platform, concave table top made of there is the operating platform profile to be connected Peripheral frame, the peripheral frame upper surface cover fixed cover board, and the wide gabarit with standard tower section matches in the opening of the peripheral frame, it is described on Guardrail is welded and fixed in periphery.
The present invention further improves, and in the 4th step, each jacking is by top tool internal thread strut and twists Pressure pin in internal screw thread forms, the prop head of the connected bracketing flatrack steel pipe in the top of the pressure pin, leads between the strut of each jacking It crosses the cross bar being spaced apart above and below to be connected, constitutes frame structure.
Detailed description of the invention
Fig. 1 is the installation lattice column step structural schematic diagram of one embodiment of the invention.
Fig. 2 .1 is the structural schematic diagram that Fig. 1 embodiment installs lattice column operating platform.
Fig. 2 .2 is the vertical view figure structure schematic representation of Fig. 2 .1.
Fig. 2 .3 is the A direction view of Fig. 2 .2.
Fig. 3 is the Bailey bracket structural schematic diagram that Fig. 1 embodiment uses.
Fig. 4 is the erection Bailey beam step schematic diagram of Fig. 1 embodiment.
Fig. 5 is the lifting I-beam step schematic diagram of Fig. 1 embodiment.
Fig. 6 and Fig. 7 builds big beam form bottom step schematic diagram for Fig. 1 embodiment.
Fig. 8 .1 to 8.7 is the crossbeam reinforcing bar process of binding schematic diagram of Fig. 1 embodiment.
Fig. 9 is the sandwich boards for construction plate step schematic diagram of Fig. 1 embodiment.
Figure 10 is the construction conversion layer step schematic diagram of Fig. 1 embodiment.
Specific embodiment
Embodiment one
The high-rise building transfer floor of the present embodiment is located on nine layers, and one side has interlayer, and the other side does not have interlayer, shellfish The construction method of thunder body panel as shown, construct according to the following steps:
The first step, installation lattice column --- as shown in Figure 1, in the lattice column foundation being linked together with building basis 1-1 Position below the corresponding conversion layer crossbeam of the two sides 1-2 passes through the lattice column 1 of pre-embedded anchoring bolts 1-3 installation interval distribution respectively, The lattice column 1 of the present embodiment is spliced section by section from bottom to top using the standard tower section 1-4 of tower crane;
When splicing installation, using tool-type operating platform 2 shown in Fig. 2 .1, Fig. 2 .2, Fig. 2 .3, tool-type operation is flat There is platform 2 channel steel profile to be welded concave table top peripheral frame 2-1, and the upper surface peripheral frame 2-1 covers fixed checkered steel plate 2- 2, the interior wide gabarit with standard tower section that is open matches, and guardrail 2-3 made of steel pipe is welded and fixed in upper surface periphery;Peripheral frame 2- Welding is connected two and protrudes into the cantilever beam 2-4 in being open towards opening direction on the outside of 1 one end, and the two sides of open end are respectively welded solid It is connected with horizontal otic placode 2-5 with holes, outer weekly interval welding is fixed with vertical otic placode 2-6 with holes;Tool-type is operated when use Platform 2, which is installed on, to have installed outside standard tower section, lifts by crane by otic placode and is connected with standard tower section has been installed, and cantilever beam insertion has filled Good standard Ta Jienei plays the role of safety guarantee;It installs after fixing, will be moved the operating platform up in place to current lattice column section To top, the installation of a section lattice column section can be carried out;So circulation, until the capital of lattice column reaches required absolute altitude, ten Divide convenient and safe.
Second step sets up Bailey beam --- and as shown in Figure 3 and Figure 4, lifting sets up one group and is respectively supported at ipsilateral lattice column 1 And the Bailey beam 3 on floor L to be converted;As the case may be, the both ends of Bailey beam 3 can shelve the steel accordingly fixed at the scene On bracket.
Third step, lifting I-beam --- it is fixed in Bailey beam and normal thereto one group as shown in figure 5, lifting is set up The overhanging I-beam 5 for being spaced apart high 400mm in both ends, is laid with safe protective covering, the protective layer of the present embodiment on I-beam 5 The specifically expanded metal lath 5-2 (grid 30x40mm, string diameter 2.0mm) by big eye safety net 5-1, thereon, frame is on expanded metal lath 5-2 Criss-cross interval steel pipe (ф 48x wall thickness 3.6mm) 5-3,5-4, and load in a crisscross manner interval steel pipe on steel lattice Grid 5-5 (being commonly called as steel bar piece) is constituted, and wherein 5-1 mainly plays safety protection function to the personnel of upper operating platform, and 5-2 mainly prevents Only small instruments and tools falls, and the larger all materials of 5-3,5-4 primary protection fall.Meanwhile as shown in fig. 6, following have the outer of interlayer side It stretches end and builds builder's jack 6, the other side is then fixed high across I-steel 4 without sandwiched area.
4th step builds big beam form bottom --- as shown in fig. 7, the vertical jacking 7-1 being spaced apart is propped up on I-beam 5, it is each to push up Support 7-1 is made of top tool internal thread strut 7-D and the pressure pin 7-U being screwed in internal screw thread, therefore can be in a certain range Interior on-demand height-regulating, the top of pressure pin 7-U are connected the prop head of bracketing flatrack steel pipe 7-2, between each jacking 7-1 by between the upper and lower every point The cross bar 7-3 of cloth is connected, and constitutes frame structure;Flatrack steel pipe 7-2 is used to support crossbeam and interlayer formwork for placing;Support crossbeam Jacking spacing is less than the jacking spacing of supports layer, to form reasonable load ability.
5th step, sandwich boards for construction plate --- as shown in figure 9, constructing beam placement on jacking 7-1 support flatrack steel pipe 7-2 Template and the interlayer formwork for placing being connected between in the middle part of the beam placement template of two sides;Crossbeam construction process such as Fig. 8 .1 extremely schemes Shown in 8.7:
Step 1: paving beam bottom muscle --- as shown in Fig. 8 .1, it is laid with the bottom muscle of beam placement template bottom interval distribution (i.e. Bottom reinforcement bars) 9-1, and install beam pad (being commonly called as stirrup) 9-2;
Step 2: lifting crossbeam --- as shown in Fig. 8 .2, I-girder 9 is lifted into the middle part of beam placement template in place, Beam pad 9-2 is prescinded after being welded and fixed;
Step 3: paving beam gluten --- as shown in Fig. 8 .3, the face being spaced apart is laid with above I-girder 9 in place Muscle 9-3;
Step 4: wearing beam waist muscle --- as shown in Fig. 8 .4, it is laid with 9 middle part two of beam placement template two sides and I-girder The side muscle 9-4 that side is spaced apart, and hook around corresponding side muscle 9-4 is spaced apart waist muscle 9-5 and I-shaped respectively by both ends elbow The weldering of crossbeam 9 connects, and constitutes rib cage shape structure;
Step 5: binding stirrup --- as shown in Fig. 8 .5, binding is spaced apart the stirrup around beam placement template section 9-6;
Step 6: envelope beam side --- as shown in Fig. 8 .6, all Side shuttering 9-7 of beam placement are closed, reserves and pours Mouthful, split bolt 9-8 reinforcing of the lower part Side shuttering 9-7 across sandwich flitch 9-9;
Step 7: beam placement --- as shown in Fig. 8 .7, casting concrete is poured to half the height in beam placement template Degree;
After routinely having bound reinforcing bar in interlayer formwork for placing simultaneously, casting concrete.
6th step, construction conversion layer --- it is as shown in Figure 10, vertical across being propped up on I-steel 4 in the sandwich plate G and height poured The jacking being spaced apart, and at the top of the jacking after the flatrack steel pipe of placement support conversion layer formwork for placing, building is connected to two sides Conversion layer formwork for placing between beam placement template top, and reinforcing bar has been bound in conversion layer formwork for placing, together with crossbeam Top casting concrete together.
It was verified that the present embodiment is compared with prior art, it is not only easy to implement efficient, safe and reliable, it is ensured that matter Amount, also has the following obvious advantages:
1, the present embodiment conversion layer uses lattice column, Bailey beam, about 277 tons of I-steel, and as using the full hall foot of tradition Hand cradle sets up high-supported formwork, then needs about 1044 tons of steel, therefore saves all material significant effects.
2, tool-type operating platform is easy to operate, securely and reliably, not only can when installing same lattice column Reusability, And it is used in turn between each lattice column.
3, when setting up high-supported formwork using traditional full hall scaffold, the first floor, -1 layer, -2 layers of striking time will be extended, and Influence the decorations progress of basement;And the method for using the present embodiment will not extend the first floor, -1 layer, -2 layers of demoulding completely Time will not influence the progress of decorations.
4, traditional full hall scaffold, which is set up, needs a large amount of places to stack all materials, increases tower crane load, influences other processes Construction;And place needed for the Bailey bracket of the present embodiment is obviously less, and stackable in tower crane radius, after the completion of assembled Directly lifting greatly facilitates construction to construction floor.
5, Bailey bracket total weight used in the present embodiment be only use the 1/4 of high-supported formwork, and fill, tear open the time be obviously shortened, Security protection difficulty is also substantially reduced.

Claims (4)

1. a kind of high-rise building transfer floor Bailey bracket platform construction method, it is characterised in that the following steps are included:
The first step, installation lattice column --- distinguish installation interval in the position below the corresponding conversion layer crossbeam of building basis two sides The lattice column of distribution, capital are extremely concordant with floor to be converted;
Second step sets up Bailey beam --- and lifting sets up one group of shellfish thunder being respectively supported on ipsilateral lattice column and floor to be converted Beam;
Third step, lifting I-beam --- lifting sets up and is fixed on the interval that in Bailey beam and one group of both ends normal thereto are overhanging It is distributed I-beam, safe protective covering is laid on I-beam and overhanging end builds builder's jack;
4th step builds big beam form bottom --- and the vertical jacking being spaced apart is propped up on I-beam, and is disposed at the top of jacking and propped up respectively Support the flatrack steel pipe of crossbeam and interlayer formwork for placing;
5th step, sandwich boards for construction plate --- beam placement template is constructed on jacking support flatrack steel pipe and to be connected to two sides big Interlayer formwork for placing between in the middle part of beam formwork for placing, and I-girder is disposed in beam placement template, after having bound reinforcing bar Casting concrete, beam placement template are poured to half height;
6th step, construction conversion layer --- in the sandwich plate and height poured across the vertical jacking being spaced apart of branch on I-steel, and At the top of the jacking after the flatrack steel pipe of placement support conversion layer formwork for placing, building be connected to two sides beam placement template top it Between conversion layer formwork for placing, and reinforcing bar has been bound in conversion layer formwork for placing, together with crossbeam top casting concrete.
2. high-rise building transfer floor Bailey bracket platform construction method according to claim 1, it is characterised in that: described first The lattice column of step is spliced section by section from bottom to top using the standard tower section of tower crane;When splicing installation, using tool-type operating platform, institute Concave table top peripheral frame made of operating platform is connected with profile is stated, the peripheral frame upper surface covers fixed cover board, described The wide gabarit with standard tower section matches in the opening of peripheral frame, and guardrail is welded and fixed in the upper surface periphery.
3. high-rise building transfer floor Bailey bracket platform construction method according to claim 2, it is characterised in that: the described 4th In step, each jacking is made of top tool internal thread strut and the pressure pin being screwed in internal screw thread, and the top of the pressure pin is connected The prop head of bracketing flatrack steel pipe is connected between the strut of each jacking by the cross bar being spaced apart above and below, constitutes frame structure.
4. high-rise building transfer floor Bailey bracket platform construction method according to claim 3, it is characterised in that: the described 5th In step, the construction progress step of crossbeam are as follows:
Step 1: paving beam bottom muscle --- it is laid with the bottom muscle of beam placement template bottom interval distribution, and installs beam pad;
Step 2: lifting crossbeam --- I-girder is lifted into the middle part of beam placement template in place, prescinds beam after being welded and fixed Pad;
Step 3: paving beam gluten --- the gluten being spaced apart is laid with above I-girder in place;
Step 4: wearing beam waist muscle --- it is laid with the side muscle that beam placement template two sides and I-girder on both sides of the middle are spaced apart, And by both ends elbow respectively hook around corresponding side muscle be spaced apart waist muscle and I-girder weldering connect, constitute rib cage shape structure;
Step 5: binding stirrup --- binding is spaced apart the stirrup around beam placement template section;
Step 6: envelope beam side --- closing all Side shutterings of beam placement, Side shuttering lower part is with across sandwich wood The split bolt of side is reinforced;
Step 7: beam placement --- casting concrete is poured to half height in beam placement template.
CN201710326359.1A 2017-05-10 2017-05-10 A kind of high-rise building transfer floor Bailey bracket platform construction method Active CN108019040B (en)

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CN109944444B (en) * 2019-03-27 2021-03-02 中建三局集团有限公司 Template support system and reinforcement and adjustment device of high-precision concrete wall

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JP3638571B2 (en) * 2002-05-20 2005-04-13 株式会社竹中工務店 Support load transfer method for existing buildings
CN100460613C (en) * 2005-08-02 2009-02-11 浙江展诚建设集团股份有限公司 Suspension holder construction method
CN201254832Y (en) * 2008-09-10 2009-06-10 中国建筑第四工程局有限公司 Self-supporting template apparatus for conversion layer structure
CN101818570B (en) * 2010-03-23 2011-06-15 南通宏华建筑安装有限公司 Method for constructing girder structure conversion layer of high-rise building
CN102108788A (en) * 2010-12-31 2011-06-29 华煜建设集团有限公司 Method for constructing hanging in the air large-span support
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CN104110136A (en) * 2013-04-18 2014-10-22 中冶天工上海十三冶建设有限公司 Erecting method for concrete pouring formwork with structural transition layer comprising H-type steel crossbeam
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