CN103015716A - Construction method for ultra-wide section conversion beam steel engineering - Google Patents

Construction method for ultra-wide section conversion beam steel engineering Download PDF

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Publication number
CN103015716A
CN103015716A CN2012104939397A CN201210493939A CN103015716A CN 103015716 A CN103015716 A CN 103015716A CN 2012104939397 A CN2012104939397 A CN 2012104939397A CN 201210493939 A CN201210493939 A CN 201210493939A CN 103015716 A CN103015716 A CN 103015716A
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CN
China
Prior art keywords
conversion
super wide
gluten
row
wide
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Pending
Application number
CN2012104939397A
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Chinese (zh)
Inventor
周荣生
李建中
王勇
叶祥林
严俊佳
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TAIXING FIRST CONSTRUCTION INSTALLATION CO Ltd
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TAIXING FIRST CONSTRUCTION INSTALLATION CO Ltd
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Priority to CN2012104939397A priority Critical patent/CN103015716A/en
Publication of CN103015716A publication Critical patent/CN103015716A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a construction method for ultra-wide section conversion beam steel engineering. A plurality of lines of brace groups are adopted as temporary supporting structures; waist ribs, upper surface ribs, hoop ribs and lower surface ribs are sequentially erected on I-steel beams on the brace groups; and bound ultra-wide section conversion beam steels are downwardly put onto laid beam bottom boards through unloading the temporary supporting structures to finish construction of the ultra-wide section conversion beam steels engineering. The method has the advantages of simple technique, convenience for material taking, high recycling rate, low construction strength and difficulty, low construction cost, firmness in binding of ultra-wide section conversion beam steels, definite stress, safety and reliability.

Description

A kind of super wide cross section conversion beam reinforced bar engineering construction method
Technical field
The present invention relates to a kind of reinforcement fabrication method of building girder, is a kind of super wide cross section conversion beam reinforced bar engineering construction method specifically.
Background technology
Along with the continuous quickening of urbanization process, a large amount of RC high-rise buildings are rised sheer from level ground, and structural transition layer also is widely used in modern RC high-rise building.Super wide cross section conversion beam is as a kind of newer structure conversion pattern, and the key of its construction is the construction of super wide cross section conversion beam reinforced bar engineering.Traditional steel beam structure hangs in the job site after adopting non-at-scene assembling, because super wide cross section conversion beam breadth of section is larger, highly high, span is large, width is wide, reinforcing bar is close from great, hangs in use after can't assembling.Set up mostly first beam bottom board in the prior art, on beam bottom board, carry out from bottom to top reinforcing bar binding, the end muscle colligation difficulty of super wide cross section conversion beam, it is not in place colligation very easily to occur, affect super wide cross section conversion beam bulk strength, and beam bottom board is subjected to the reinforcing bar gravity effect yielding in the reinforcing bar binding process for a long time, affects building of super wide cross section conversion beam, super wide cross section conversion beam cage of reinforcement intensity, builds shape difference.
Summary of the invention
In order to solve the construction of super wide cross section conversion beam reinforcing bar binding in the prior art to the impact of super wide cross section conversion beam quality, it is simple to the invention provides a kind of technique, and colligation is firm, stressed clear and definite, Forming Quality is good, on the super wide cross section conversion beam reinforced bar engineering construction method of casting without impact.
The technical solution used in the present invention is: a kind of super wide cross section conversion beam reinforced bar engineering construction method may further comprise the steps:
A, when super wide cross section conversion beam substructure flooring is constructed, pre-embedded anchoring bolts;
B, evenly be divided into multiple row pillar group along super wide cross section conversion beam length direction, the post group of whenever being disbursed from the cost and expenses is included as many pillars along super wide cross section conversion beam width, and many pillars of above-mentioned multiple row pillar group all are installed on the stone bolt;
C, the concrete wall column that utilizes conversion layer integral mold plate supporting row frame and conversion layer in advance to build to finish carry out drawknot, fixing to many pillars along super wide cross section conversion beam length, width;
D, on the many pillars of post group of whenever being disbursed from the cost and expenses, by jackscrew the I-shaped gooseneck is installed;
E, set up super wide cross section conversion beam bed die supporting row frame;
F, the super wide cross section of colligation conversion beam cage of reinforcement: laying, the super wide cross section of colligation conversion beam waist muscle; Laying, conversion beam top, the super wide cross section of colligation gluten, wearing from bottom to top of top gluten carried out by row, lower row's gluten of top gluten is layed in first on the i iron crossbeam of multiple row pillar group, re-lay upper row's gluten of top gluten, spacing adopts construction parallels or steel pipe control between upper and lower row's gluten; At the socket of conversion beam top, super wide cross section gluten, colligation stirrup; Laying, conversion beam bottom, the super wide cross section of colligation gluten, wearing from bottom to top of bottom gluten carried out by row, lower row's gluten of bottom gluten is layed in first the end in the stirrup, re-lays upper row's gluten of bottom gluten, and spacing adopts construction parallels or steel pipe control between upper and lower row's gluten;
G, conversion beam bed die supporting row frame is set up super wide cross section conversion beam bed die in super wide cross section, lays the topping cushion block of corresponding super wide cross section conversion beam cage of reinforcement at super wide cross section conversion beam bed die;
Jackscrew on the many pillars of h, synchronous rotary multiple row pillar group is down to super wide cross section conversion beam cage of reinforcement on the topping cushion block of super wide cross section conversion beam bed die;
I, taking-up i iron crossbeam are removed one by one multiple row pillar group and handling from top to bottom and are appeared on the scene, and cut off pre-embedded bolt; J, the fixing super wide cross section of colligation conversion beam waist muscle wear super wide cross section conversion beam horizontal reinforcement drag hook, finish super wide cross section conversion beam reinforcement engineering construction.
Further, the super wide cross section of colligation conversion beam waist muscle cracking resistance steel mesh reinforcement among the described step j.
Adopt above technology, the invention has the beneficial effects as follows:
1, pillar, i iron crossbeam all can be processed prefabricatedly outside the field, do not take the leading duration, do not take the construction plant, and the condition of interchange operation can be provided; Utilize many group column groups and i iron crossbeam as temporary supporting system, the reinforcement fabrication of super wide cross section conversion beam, installation all can be carried out with reference to common beam body, need not to take other any construction ancillary method, effectively raise speed of application, shortened the engineering time of super wide cross section, heavy in section conversion beam reinforced bar engineering, avoid simultaneously the appearance of welded closure stirrup, beam bottom board is taked rear installation, muscle colligation at the bottom of the beam put in place meet the requirements after complete closed beam bottom board again, the whole colligations that guaranteed the beam muscle put in place, and quality can effectively be guaranteed;
2, super wide cross section conversion beam bed die lay finish after, before the temporary supporting off-load at the bottom of super wide cross section conversion beam bed die lays super wide cross section conversion beam the tendon protective layer cushion block, cushion block can adopt granite chippings work made of stones, to guarantee the accuracy of end tendon protective layer, simultaneously muscle at the bottom of the conversion beam of super wide cross section is shielded, prevent the conversion beam cage construction distortion of super wide cross section;
When 3, wearing super wide cross section conversion beam horizontal reinforcement drag hook, less such as reinforcing bar drag hook diameter, drag hook can be processed into the shape of 90 ° at an end, 135 ° at an end, manually that all 90 ° of crotches are curved to 135 ° again after the drag hook colligation is finished, the constructability operation;
4, conversion beam side, the super wide cross section of colligation cracking resistance steel mesh reinforcement, conversion beam side reinforcing bar adds the appearance that the anticracking steel mesh reinforcement could effectively prevent or reduce super wide cross section conversion beam side thermal cracking in super wide cross section, improves super wide cross section conversion beam final mass.
The present invention adopts multiple row pillar group as temporary support structure, on the firm crossbeam of I-shaped on the pillar group, set up successively waist muscle, top gluten, stirrup and bottom gluten, the super wide cross section conversion beam reinforcing bar of colligation is transferred the construction of finishing super wide cross section conversion beam reinforced bar engineering to the beam bottom board of laying by the off-load temporary support structure, the method technique is simple, draw materials convenient and recovery utilization rate high, construction intensity and difficulty are low, construction cost is low, and super wide cross section conversion beam reinforcing bar binding is firm, stressed clear and definite, safe and reliable.
Description of drawings
Fig. 1 is layout plan of the present invention;
Fig. 2 is the generalized section of Fig. 1.
Among the figure: conversion beam 1, top gluten 11, upper row's gluten 111, lower row's gluten 112, bottom gluten 12, stirrup 13, waist muscle 14, pillar group 2, column 21, i iron crossbeam 22, jackscrew 23, construction parallels 3, supporting row frame 4, topping cushion block 5, beam bottom board 6.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Layout plan of the present invention shown in Fig. 1-2, conversion beam 1 is supported by multiple row pillar group 2 parallel interval, whenever the post group of being disbursed from the cost and expenses is comprised of many pillars 21, fixedly set up an i iron crossbeam 22 through jackscrew 23 on the many pillars 21 of the post group of whenever being disbursed from the cost and expenses, conversion beam 1 length direction is vertical with i iron crossbeam 22.Conversion beam 1 skeleton is comprised of top gluten 11, bottom gluten 12, stirrup 13 and waist muscle 14; conversion beam 1 skeleton below arranges supporting row frame 4; support the beam bottom board 6 of corresponding conversion beam 1 skeleton on the supporting row frame 4 through topping cushion block 5; upper row's gluten 111 and lower row's gluten 112 of top gluten 11 are laid on i iron crossbeam 22; by construction parallels 3 space distance controls, gluten 12 structures in bottom are identical with top gluten 11 between upper and lower row's gluten.
Job practices of the present invention may further comprise the steps:
A, when super wide cross section conversion beam substructure flooring is constructed, pre-embedded anchoring bolts;
B, evenly be divided into multiple row pillar group along super wide cross section conversion beam length direction, the post group of whenever being disbursed from the cost and expenses is included as many pillars along super wide cross section conversion beam width, and many pillars of above-mentioned multiple row pillar group all are installed on the stone bolt;
C, the concrete wall column that utilizes conversion layer integral mold plate supporting row frame and conversion layer in advance to build to finish carry out drawknot, fixing to many pillars along super wide cross section conversion beam length, width;
D, on the many pillars of post group of whenever being disbursed from the cost and expenses, by jackscrew the I-shaped gooseneck is installed;
E, set up super wide cross section conversion beam bed die supporting row frame;
F, the super wide cross section of colligation conversion beam cage of reinforcement: laying, the super wide cross section of colligation conversion beam waist muscle; Laying, conversion beam top, the super wide cross section of colligation gluten, wearing from bottom to top of top gluten carried out by row, lower row's gluten of top gluten is layed in first on the i iron crossbeam of multiple row pillar group, re-lay upper row's gluten of top gluten, spacing adopts construction parallels or steel pipe control between upper and lower row's gluten; At the socket of conversion beam top, super wide cross section gluten, colligation stirrup; Laying, conversion beam bottom, the super wide cross section of colligation gluten, wearing from bottom to top of bottom gluten carried out by row, lower row's gluten of bottom gluten is layed in first the end in the stirrup, re-lays upper row's gluten of bottom gluten, and spacing adopts construction parallels or steel pipe control between upper and lower row's gluten;
G, conversion beam bed die supporting row frame is set up super wide cross section conversion beam bed die in super wide cross section, lays the topping cushion block of corresponding super wide cross section conversion beam cage of reinforcement at super wide cross section conversion beam bed die;
Jackscrew on the many pillars of h, synchronous rotary multiple row pillar group is down to super wide cross section conversion beam cage of reinforcement on the topping cushion block of super wide cross section conversion beam bed die;
I, taking-up i iron crossbeam are removed one by one multiple row pillar group and handling from top to bottom and are appeared on the scene, and cut off pre-embedded bolt; J, the fixing super wide cross section conversion beam waist muscle of colligation and waist muscle cracking resistance steel mesh reinforcement wear super wide cross section conversion beam horizontal reinforcement drag hook, finish super wide cross section conversion beam reinforcement engineering construction.

Claims (2)

1. super wide cross section conversion beam reinforced bar engineering construction method is characterized in that: may further comprise the steps:
A, when super wide cross section conversion beam substructure flooring is constructed, pre-embedded anchoring bolts;
B, evenly be divided into multiple row pillar group along super wide cross section conversion beam length direction, the post group of whenever being disbursed from the cost and expenses is included as many pillars along super wide cross section conversion beam width, and many pillars of above-mentioned multiple row pillar group all are installed on the stone bolt;
C, the concrete wall column that utilizes conversion layer integral mold plate supporting row frame and conversion layer in advance to build to finish carry out drawknot, fixing to many pillars along super wide cross section conversion beam length, width;
D, on the many pillars of post group of whenever being disbursed from the cost and expenses, by jackscrew the I-shaped gooseneck is installed;
E, set up super wide cross section conversion beam bed die supporting row frame;
F, the super wide cross section of colligation conversion beam cage of reinforcement: laying, conversion beam top, the super wide cross section of colligation gluten, wearing from bottom to top of top gluten carried out by row, lower row's gluten of top gluten is layed in first on the i iron crossbeam of multiple row pillar group, re-lay upper row's gluten of top gluten, spacing adopts construction parallels or steel pipe control between upper and lower row's gluten; At the socket of conversion beam top, super wide cross section gluten, colligation stirrup; Laying, conversion beam bottom, the super wide cross section of colligation gluten, wearing from bottom to top of bottom gluten carried out by row, lower row's gluten of bottom gluten is layed in first the end in the stirrup, re-lays upper row's gluten of bottom gluten, and spacing adopts construction parallels or steel pipe control between upper and lower row's gluten;
G, conversion beam bed die supporting row frame is set up super wide cross section conversion beam bed die in super wide cross section, lays the topping cushion block of corresponding super wide cross section conversion beam cage of reinforcement at super wide cross section conversion beam bed die;
Jackscrew on the many pillars of h, synchronous rotary multiple row pillar group is down to super wide cross section conversion beam cage of reinforcement on the topping cushion block of super wide cross section conversion beam bed die;
I, taking-up i iron crossbeam are removed one by one multiple row pillar group and handling from top to bottom and are appeared on the scene, and cut off pre-embedded bolt; J, wear, the fixing super wide cross section of colligation conversion beam waist muscle, wear super wide cross section conversion beam horizontal reinforcement drag hook, finish super wide cross section conversion beam reinforcement engineering construction.
2. a kind of super wide cross section according to claim 1 conversion beam reinforced bar engineering construction method is characterized in that: the super wide cross section of colligation conversion beam waist muscle cracking resistance steel mesh reinforcement among the described step j.
CN2012104939397A 2012-11-28 2012-11-28 Construction method for ultra-wide section conversion beam steel engineering Pending CN103015716A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0235170A (en) * 1988-07-22 1990-02-05 Takenaka Komuten Co Ltd Reinforcement preassembling method for long span beam
CN101818570A (en) * 2010-03-23 2010-09-01 南通宏华建筑安装有限公司 Method for constructing girder structure conversion layer of high-rise building
CN102619331A (en) * 2011-03-08 2012-08-01 青光绪 Once molding construction method of beam-type conversion layer of high-rise building by steel pipe supporting and laminated pouring

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0235170A (en) * 1988-07-22 1990-02-05 Takenaka Komuten Co Ltd Reinforcement preassembling method for long span beam
CN101818570A (en) * 2010-03-23 2010-09-01 南通宏华建筑安装有限公司 Method for constructing girder structure conversion layer of high-rise building
CN102619331A (en) * 2011-03-08 2012-08-01 青光绪 Once molding construction method of beam-type conversion layer of high-rise building by steel pipe supporting and laminated pouring

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
李建中等: "深圳榭丽花园三期梁式转换层施工技术", 《建筑技术》 *
邵垒: "浅谈梁式转换层结构钢筋工程", 《科协论坛》 *

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Application publication date: 20130403