CN102704504A - Method for constructing tower crane foundation - Google Patents

Method for constructing tower crane foundation Download PDF

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Publication number
CN102704504A
CN102704504A CN2012102119389A CN201210211938A CN102704504A CN 102704504 A CN102704504 A CN 102704504A CN 2012102119389 A CN2012102119389 A CN 2012102119389A CN 201210211938 A CN201210211938 A CN 201210211938A CN 102704504 A CN102704504 A CN 102704504A
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China
Prior art keywords
tower crane
foundation
construction
concrete
waterproof
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Pending
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CN2012102119389A
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Chinese (zh)
Inventor
杨正丽
杨正华
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NANTONG HUAXIN CONSTRUCTION ENGINEERING GROUP Co Ltd
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NANTONG HUAXIN CONSTRUCTION ENGINEERING GROUP Co Ltd
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Priority to CN2012102119389A priority Critical patent/CN102704504A/en
Publication of CN102704504A publication Critical patent/CN102704504A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a method for constructing a tower crane foundation. According to the technical scheme, the tower crane foundation is constructed by using a structure raft foundation. The method comprises the following steps of: determining the position of the tower crane foundation, excavating soil, constructing a foundation bed, constructing and plastering brick moulds, performing foundation water prevention, constructing a foundation water prevention protective layer, performing foundation setting-out, bundling foundation base plate lower steel bars, preembedding and assembling tower crane accessories; bundling foundation upper steel bars, assembling steel plate water-stop belts and templates, performing concrete construction on the tower crane foundation, roughening and performing water prevention treatment on concrete surface of the tower crane foundation and a structure raft. By the method, the construction process is simplified, the construction cost is reduced, and the tower crane foundation is integrated with the structure raft and stressed in a relatively balanced and safe mode.

Description

A kind of job practices of tower crane
Technical field
The present invention relates to the tower crane technical field, the concrete main structure body that includes raft foundation needs to install the tower crane construction that tower crane carries out the vertical transport engineering.
Background technology
Because lean on the arm lift heavy thing hang, the tower machine has very large moment of toppling over, and is also higher to the ground requirement for bearing capacity,, be the necessary condition that keeps safety of tower crane to move so tower crane is extremely important.Tower crane generally all is that concrete casting builds up pedestal, and the grow tall wide size and the arrangement of reinforcement of pedestal need satisfy the topple requirement of stable, bearing capacity of foundation soil, pedestal cracking resistance of tower crane.Traditional tower crane is constructed outside the structure raft foundation, and the position is influenced by architecture basics and building structure, and uses the buried underground or dismounting in back, has wasted manpower and materials.
Summary of the invention
The present invention is directed to the deficiency that exists in the prior art, provide a kind of tower crane position not influenced by architecture basics and building structure, the job practices that job practices is simplified, practiced thrift the tower crane of cost.
To achieve these goals, the technical scheme that the present invention adopts is: a kind of job practices of tower crane is to utilize structure raft foundation construction tower crane.
The job practices of above-mentioned tower crane comprises: formulate the tower crane position, earth excavation, foundation pad; The brick loose tool is built by laying bricks or stones and is plastered, basic waterproof, basic fish tail and waterproof layer, basic unwrapping wire; Reinforcing bar binding under the sole plate, pre-buried and installation tower crane accessory, reinforcing bar on the colligation basis; Steel plate water-stopping band and template are installed, the construction of tower crane concrete, and tower crane and structure raft plate connect stranding face texturing processing and waterproof connects the stranding processing.
The job practices of above-mentioned tower crane, specific as follows:
(1) formulates the tower crane position: confirm that according to drawing and human and material resources situation tower crane uses model and tower crane position, formulate the position that utilizes structure raft foundation construction tower crane;
(2) earth excavation: according to the tower crane position, adopt excavator to carry out mechanical equivalent of light excavation, section construction, height and soil layer will meet design and bearing capacity of foundation soil requirement, if underground water does not fall, treat to dig after water falls again;
(3) foundation pad: press drawing design elevation construction foundation pad, guarantee waterproof construction, the concrete mats laminar surface is answered the magma press polish;
(4) the brick loose tool is built by laying bricks or stones and plastered: the brick tire is built back outside back-filling in layers, compacting by laying bricks or stones, and indeformable when guaranteeing the concrete construction, the brick loose tool is smeared, and grey inner corner trim must be done fillet;
(5) basic waterproof: carry out waterproof by the drawing design;
(6) basic fish tail and waterproof layer: accomplish the fish tail and waterproof layer concrete construction by drawing;
(7) basic unwrapping wire: on the concrete water-proof topping, carry out structure and tower crane pedestal unwrapping wire;
(8) reinforcing bar binding under the sole plate: according to reinforcing bar under the design drawing colligation tower crane position;
(9) pre-buried and installation tower crane accessory: pre embedded bolt and tower crane accessory are installed according to constructure scheme and tower crane;
(10) reinforcing bar on the colligation basis: according to reinforcing bar on the design drawing colligation tower crane position;
(11) steel plate water-stopping band and template are installed: stitch the position at structure raft foundation base plate middle part and external wall construction, the waterstop steel plate is installed;
(12) tower crane concrete construction: concrete construction must not destroy pre embedded bolt and tower crane accessory position and height, and concrete strength reaches more than 75%, reaches the tower crane desired strength;
(13) tower crane and structure raft plate connect stranding face texturing processing and waterproof and connect to rub with the hands and handle: the concrete stripping afterwards of construct, carry out the texturing processing to concrete joint stranding face.
The job practices of above-mentioned tower crane; According to the actual design requirement; Can also between " earth excavation " and " foundation pad " step, increase " graded sand and stone backfill " step; Concrete grammar is following: every layer thickness of making sandstone is 15~35cm, and lift height is with appearance stake control, then compacting or compacting or roll; Sand and sandstone ground basal surface are laid on the same absolute altitude, the degree of depth not simultaneously, basic native face should scrape out marks time and slope shape, takes Cha Chu and answers compacting or compacting, construction should be undertaken by the first shallow order in dark back; During section construction, meet Cha Chu and should do the sloping, every layer of horizontal range that meets Cha Chu should stagger 0.5~1.0m and compacting or compacting; The sandstone of making answers grating even, and discovery sand nest or stone phenomenon in heaps should be located sand or stone digs out, and inserts the sandstone that level prepares respectively; Watering, making the sandstone water content is 8%~12%; Compacting or roll more than 3 times, it is closely knit that rammer is mended in edge and corner.
Beneficial effect of the present invention:
1, simplified working procedure, owing to utilize structure valve plate foundation construction tower crane, tower crane can utilize again, therefore reduces construction cost.
2, the tower crane location arrangements is not influenced by architecture basics and building structure structure, has effectively guaranteed construction quality, progress.
3, tower crane construction and installation are faster, by structure raft plate drawing construction tower crane, thereby when architecture basics is constructed, have vertical machinery to use, and be more convenient reliable.
4, do not have the not enough influence of tower crane bearing capacity of foundation soil, tower crane and structure raft plate are an overall structure, and be stressed more balanced, safer.
The specific embodiment
Embodiment: a kind of job practices of tower crane
(1) formulates the tower crane position
Confirm that according to drawing and human and material resources situation tower crane uses model and tower crane position, formulate the position that utilizes structure raft foundation construction tower crane.
(2) earth excavation
Carry out soil excavation according to Design Requirement Drawing, height and soil layer will meet design and bearing capacity of foundation soil requirement, adopt excavator to carry out mechanical equivalent of light excavation; Section construction, thick cubic metre of earth of 400m, the wherein thick former soil layer of 200m, the thick layer that loosens the soil of 200m are stayed in the foundation ditch bottom; Labor cleaning's absolute altitude at the bottom of the concrete bed course on one side; Transport with automobile on the limit, and former soil layer more than the 200m wherein must not disturbance; Soil excavation layer and section from top to bottom carries out, and is incremental, and segmentation is checked and accepted, and does not fall like underground water, treats to carry out the hand excavation again behind the precipitation.
(3) graded sand and stone backfill
Every layer thickness of making sandstone is 15-20cm, compacting, and lift height can be used appearance stake control; Sand and sandstone ground basal surface should be laid on the same absolute altitude, and like the degree of depth not simultaneously, basic native face should scrape out marks time and slope shape, take Cha Chu and should note pressing (rammer) real.Construction should be undertaken by elder generation's shallow order in dark back; During section construction, meet Cha Chu and should do the sloping, every layer of horizontal range that meets Cha Chu 0.5-1.0m that staggers, and fully press (rammers) reality; The sandstone of making answers grating even, finds sand nest or stone phenomenon in heaps, should this place's sand or stone be dug out, and inserts the sandstone that level prepares respectively; The making graded sand and stone should be done wet degree and weather conditions according to it before compacting rolls, watering, and the water content 8-12% that makes sandstone is to keep the optimum moisture content of sandstone; When using frog hammer, should keep falling apart from being 400~500mm, a rammer to press half rammer, every trade be joined, and tamps comprehensively, and compacting is no less than 3 times, and it is closely knit that edge and corner using artificial or frog hammer are mended rammer.
(4) foundation pad
Press drawing design elevation construction foundation pad, the foundation pad size will be considered reinforcing bar anchoring lap length; The concrete mats laminar surface is answered the magma press polish, guarantees waterproof construction.
(5) the brick loose tool is built by laying bricks or stones and is plastered
The brick tire is built back outside back-filling in layers, compacting by laying bricks or stones, and indeformable when guaranteeing the concrete construction, the brick loose tool is plastered, and inner corner trim must be done fillet, and the assurance waterproof is constructed well.
(6) basic waterproof
Have the basement basis to carry out waterproof by the figure designing requirement, guarantee that base plate does not seep water, waterproof connects the stranding length in reserve must meet the back construction requirement, and will carry out finished product protection.
(7) basic fish tail and waterproof layer
Waterproof construction is checked and accepted, and accomplishes the fish tail and waterproof layer concrete construction by drawing, and the waterproof finished product protection is carried out in concrete construction, must not destroy waterproofing course.
(8) basic unwrapping wire
On the concrete water-proof topping, carry out structure and tower crane pedestal unwrapping wire, guarantee that structure wall column, tower crane accessory position and absolute altitude are accurate.
(9) reinforcing bar binding under the sole plate
According to reinforcing bar under the design drawing colligation tower crane position, to consider reinforcing bar link position and anchoring size simultaneously.
(10) pre-buried and installation tower crane accessory
Install according to constructure scheme and tower crane, pre embedded bolt and tower crane accessory guarantee that the position is accurate.
(11) reinforcing bar on the colligation basis
According to reinforcing bar on the design drawing colligation tower crane position, to consider reinforcing bar link position and anchoring size simultaneously.
(12) steel plate water-stopping band and template are installed
At structure valve plate sole plate middle part and external wall construction seam position the waterstop steel plate is installed, guarantee welding and installation quality during construction.
(13) tower crane concrete construction
Concrete construction must meet Design Requirement Drawing, and will meet the basic engineering requirement of tower crane producer, and concrete construction will be noted the protection to pre embedded bolt and tower crane accessory, must not destroy pre embedded bolt and tower crane accessory position and height.
(14) tower crane and structure raft plate connect stranding face texturing processing and waterproof and connect to rub with the hands and handle
Stripping after concrete has been constructed carries out texturing to concrete joint stranding face and handles.
(15) tower crane is installed
Concrete strength reaches more than 75%, and when reaching the tower crane desired strength, carries out tower crane by constructure scheme and install.

Claims (5)

1. the job practices of a tower crane is characterized in that it being to utilize structure raft foundation construction tower crane.
2. the job practices of a kind of tower crane according to claim 1 is characterized in that job practices comprises: formulate the tower crane position, earth excavation, foundation pad; The brick loose tool is built by laying bricks or stones and is plastered, basic waterproof, basic fish tail and waterproof layer, basic unwrapping wire; Reinforcing bar binding under the sole plate, pre-buried and installation tower crane accessory, reinforcing bar on the colligation basis; Steel plate water-stopping band and template are installed, the construction of tower crane concrete, and tower crane and structure raft plate connect stranding face texturing processing and waterproof connects the stranding processing.
3. the job practices of a kind of tower crane according to claim 2 is characterized in that job practices is following:
(1) formulates the tower crane position: confirm that according to drawing and human and material resources situation tower crane uses model and tower crane position, formulate the position that utilizes structure raft foundation construction tower crane;
(2) earth excavation: according to the tower crane position, adopt excavator to carry out mechanical equivalent of light excavation, section construction, height and soil layer will meet design and bearing capacity of foundation soil requirement, if underground water does not fall, treat to dig after water falls again;
(3) foundation pad: press drawing design elevation construction foundation pad, guarantee waterproof construction, the concrete mats laminar surface is answered the magma press polish;
(4) the brick loose tool is built by laying bricks or stones and plastered: the brick tire is built back outside back-filling in layers, compacting by laying bricks or stones, and indeformable when guaranteeing the concrete construction, the brick loose tool is plastered, and inner corner trim must be done fillet;
(5) basic waterproof: carry out waterproof by the drawing design;
(6) basic fish tail and waterproof layer: accomplish the fish tail and waterproof layer concrete construction by drawing;
(7) basic unwrapping wire: on the concrete water-proof topping, carry out structure and tower crane pedestal unwrapping wire;
(8) reinforcing bar binding under the sole plate: according to reinforcing bar under the design drawing colligation tower crane position;
(9) pre-buried and installation tower crane accessory: pre embedded bolt and tower crane accessory are installed according to constructure scheme and tower crane;
(10) reinforcing bar on the colligation basis: according to reinforcing bar on the design drawing colligation tower crane position;
(11) steel plate water-stopping band and template are installed: stitch the position at structure raft foundation base plate middle part and external wall construction, the waterstop steel plate is installed;
(12) tower crane concrete construction: concrete construction must not destroy pre embedded bolt and tower crane accessory position and height, and concrete strength reaches more than 75%, reaches the tower crane desired strength;
(13) tower crane and structure raft plate connect stranding face texturing processing and waterproof and connect to rub with the hands and handle: the concrete stripping afterwards of construct, carry out the texturing processing to concrete joint stranding face.
4. according to the job practices of claim 2 or 3 described a kind of tower cranes, it is characterized in that between " earth excavation " and " foundation pad " step, increasing " graded sand and stone backfill " step.
5. the job practices of a kind of tower crane according to claim 4; It is characterized in that described " graded sand and stone backfill " step; Concrete grammar is following: every layer thickness of making sandstone is 15~35cm, and lift height is with appearance stake control, then compacting or compacting or roll; Sand and sandstone ground basal surface are laid on the same absolute altitude, the degree of depth not simultaneously, basic native face should scrape out marks time and slope shape, takes Cha Chu and answers compacting or compacting, construction should be undertaken by the first shallow order in dark back; During section construction, meet Cha Chu and should do the sloping, every layer of horizontal range that meets Cha Chu should stagger 0.5~1.0m and compacting or compacting; The sandstone of making answers grating even, and discovery sand nest or stone phenomenon in heaps should be located sand or stone digs out, and inserts the sandstone that level prepares respectively; Watering, making the sandstone water content is 8%~12%; Compacting or roll more than 3 times, it is closely knit that rammer is mended in edge and corner.
CN2012102119389A 2012-06-26 2012-06-26 Method for constructing tower crane foundation Pending CN102704504A (en)

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Cited By (9)

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Publication number Priority date Publication date Assignee Title
CN102912810A (en) * 2012-11-22 2013-02-06 北京城乡建设集团有限责任公司 Tower crane base structure in range of base bottom plate and construction method thereof
CN102966114A (en) * 2012-12-10 2013-03-13 中国建筑第八工程局有限公司 Tower crane foundation structure and construction method thereof
CN102995654A (en) * 2012-11-06 2013-03-27 广西玉柴专用汽车有限公司 Process for mounting equipment in garbage transportation station
CN103161176A (en) * 2012-10-20 2013-06-19 中国二十二冶集团有限公司 Tower crane foundation construction method in main building connected garage
CN105002923A (en) * 2015-08-03 2015-10-28 上海建工五建集团有限公司 Embedded tower crane foundation and construction mode thereof
CN105421477A (en) * 2015-09-06 2016-03-23 上海建工七建集团有限公司 Construction method for tower crane foundation
CN107503354A (en) * 2016-06-14 2017-12-22 五冶集团上海有限公司 A kind of tower crane goes along with sb. to guard him bracing reinforcement and excavation method
CN107700519A (en) * 2017-10-10 2018-02-16 中建四局第六建筑工程有限公司 One kind lifting tower crane installation method
CN110777837A (en) * 2019-11-01 2020-02-11 安徽同济建设集团有限责任公司 Construction method of fabricated building mixed tower crane

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103161176B (en) * 2012-10-20 2016-01-20 中国二十二冶集团有限公司 Tower crane foundation construction method in main building disjunctor garage
CN103161176A (en) * 2012-10-20 2013-06-19 中国二十二冶集团有限公司 Tower crane foundation construction method in main building connected garage
CN102995654A (en) * 2012-11-06 2013-03-27 广西玉柴专用汽车有限公司 Process for mounting equipment in garbage transportation station
CN102995654B (en) * 2012-11-06 2015-01-07 广西玉柴专用汽车有限公司 Process for mounting equipment in garbage transportation station
CN102912810A (en) * 2012-11-22 2013-02-06 北京城乡建设集团有限责任公司 Tower crane base structure in range of base bottom plate and construction method thereof
CN102912810B (en) * 2012-11-22 2014-10-22 北京城乡建设集团有限责任公司 Tower crane base structure in range of base bottom plate and construction method thereof
CN102966114B (en) * 2012-12-10 2016-04-13 中国建筑第八工程局有限公司 Tower crane foundation structure and construction method thereof
CN102966114A (en) * 2012-12-10 2013-03-13 中国建筑第八工程局有限公司 Tower crane foundation structure and construction method thereof
CN105002923A (en) * 2015-08-03 2015-10-28 上海建工五建集团有限公司 Embedded tower crane foundation and construction mode thereof
CN105421477A (en) * 2015-09-06 2016-03-23 上海建工七建集团有限公司 Construction method for tower crane foundation
CN107503354A (en) * 2016-06-14 2017-12-22 五冶集团上海有限公司 A kind of tower crane goes along with sb. to guard him bracing reinforcement and excavation method
CN107700519A (en) * 2017-10-10 2018-02-16 中建四局第六建筑工程有限公司 One kind lifting tower crane installation method
CN110777837A (en) * 2019-11-01 2020-02-11 安徽同济建设集团有限责任公司 Construction method of fabricated building mixed tower crane
CN110777837B (en) * 2019-11-01 2021-07-06 安徽同济建设集团有限责任公司 Construction method of fabricated building mixed tower crane

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Application publication date: 20121003