CN205224781U - Cooling tower pond structure of in cold areas prestressing without bondn structure - Google Patents

Cooling tower pond structure of in cold areas prestressing without bondn structure Download PDF

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Publication number
CN205224781U
CN205224781U CN201520870479.4U CN201520870479U CN205224781U CN 205224781 U CN205224781 U CN 205224781U CN 201520870479 U CN201520870479 U CN 201520870479U CN 205224781 U CN205224781 U CN 205224781U
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China
Prior art keywords
pool wall
cup
pond
pool
rim
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CN201520870479.4U
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Chinese (zh)
Inventor
宋良华
高岚
丛培江
郜德庆
马超
陈德智
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Northeast Electric Power Design Institute of China Power Engineering Consulting Group
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Northeast Electric Power Design Institute of China Power Engineering Consulting Group
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Abstract

The utility model provides an outer hoop sets up the prestressing without bondn reinforcing bar, and the pool wall outside sets up and is used for heat retaining extruded sheet, and articulation node is made to pool wall and bottom plate that cooling tower pond structure of in cold areas prestressing without bondn structure is equipped with vertical non prestressed reinforcing bar in the pool wall, the pool wall. The utility model discloses increasing pool wall outside hoop prestressing steel's setting, making the major diameter pond solve in the design and do not establish seam, the too big problem of ring pulling force, the problem of pond fracture and maintenance is solved in just construction, the safe and reliable ne -leakage, has higher technical benefit, the pool wall outside adopts the extruded sheet to keep warm, has reduced the temperature stress of pool wall, can reduce prestressing steel's quantity, and the extruded sheet has better withstand voltage and humidity characteristics simultaneously, is applicable to and buries underground, does not influence life, pool wall and bottom plate adopt unconventional articulation node, change traditional consolidation mode, can effectively apply the quantity that pre -pressure just reduces the vertical reinforcement in the pool wall concrete, ring pulling force under the effective resistance water pressure and the temperature stress under the difference in temperature effect, and that satisfies the pond pool wall antily splits the requirement.

Description

The cooling tower water pool structure of cold district unbonded pre-stressed construction
Technical field
The utility model relates to power engineering cooling tower structure, especially relates to a kind of pond of cooling tower preventing the unbonded pre-stressed construction of bursting by freezing for cold district.
Background technology
Cooling tower according to cold district runs feedack, and in the operation of large cooling column, a lot of engineering exists pond of cooling tower pool wall appearance crack problem in various degree, normally runs bring certain harmful effect to power plant.The structural shape of current domestic pond of cooling tower all adopts conventional monolithic reinforced concrete structure, and the large cooling column of cold district, pool diameter is larger, cause the hoop tensile force of pool wall of pool excessive, the thermal stresses of temperature impact is excessive, adopt conventional thin-wall reinforced concrete structure cannot solve this problem, so that there is cracking in various degree in using, affect power plant and normally run.
Utility model content
The purpose of this utility model utilizes unbonded pre-stressed construction feature, provides a problem scheme solving pond of cooling tower wall cracking, reduce construction investment.
For achieving the above object, the utility model provides the cooling tower water pool structure of a kind of cold district unbonded pre-stressed construction, longitudinal nonprestressed reinforcement is provided with in pool wall, it is characterized in that: the skin of pool wall is arranged circumferentially no-cohesive prestressed reinforcement, the extruded sheet of pool wall arranged outside for being incubated, pool wall and base plate make hinged joint.
Described hinged joint is pond baseboard and pool wall fluid concrete respectively, substrate arranges inner side rim of a cup and outside rim of a cup, it is cement sand bed bottom rim of a cup, one deck rubber tile is established above cement sand bed, asbestos cement is filled with in gap between outside rim of a cup and pool wall, insert embedding envelope putty and BW rubber seal glue between inner side rim of a cup and pool wall gap, top, gap is filled with expansion waterproofing mortar.
Design feature of the present utility model changes traditional pool construction, compared with designing, has the following advantages with conventional sinks:
1) pool wall adopts unbonded pre-stressed construction, increase the setting of pool wall outer ring to prestressed reinforcement, major diameter pond is solved in the design and does not establish seam, the problem that hoop tensile force is excessive, and easy construction is feasible, safe and reliable leakproof, puts things right once and for all and solves the problem of pond cracking and maintenance, overall cost for structure does not increase, but has higher technical benefits.
2) adopt extruded sheet to be incubated outside pool wall, reduce the thermal stresses of pool wall, can reduce the consumption of prestressed reinforcement, extruded sheet has withstand voltage and humidity feature preferably simultaneously, is applicable to be embedded in underground, does not affect application life.
3) pool wall and base plate adopt unconventional hinged joint, change traditional consolidation style, in pool wall concrete, effectively can apply compressive pre-stress and the consumption of reduction vertical reinforcement, the hoop tensile force effectively under the effect of opposing hydraulic pressure and the thermal stresses under action of thermal difference, meet the demand of anti-crack of pool wall of pool.
Accompanying drawing explanation
Fig. 1 is pool wall prestressed reinforcement arrangement diagram;
Fig. 2 is pool wall and base plate connecting structure detail drawing.
In figure, each numbering meaning is as follows:
1, base plate; 2, pool wall; 3, inner side rim of a cup; 4, outside rim of a cup; 5, prestress wire; 6, longitudinal nonprestressed reinforcement; 7, expansion waterproofing mortar; 8, asbestos cement; 9, BW rubber seal glue; 10, embedding envelope putty; 11, rubber tile; 12, cement mortar (1:2) 16mm is thick; 13, extruded sheet.
Detailed description of the invention
With reference to Fig. 1, Fig. 2, the utility model detailed description of the invention is in pool wall 2, be provided with longitudinal nonprestressed reinforcement 6, the outer layer ring of pool wall is to the no-cohesive prestressed reinforcement being provided with prestress wire 5, and the extruded sheet 13 of pool wall arranged outside for being incubated, pool wall and base plate 1 make hinged joint.Described hinged joint is pond baseboard 1 and pool wall 2 fluid concrete respectively, substrate arranges inner side rim of a cup 3 and outside rim of a cup 4, it is cement mortar 12 bottom rim of a cup, one deck rubber tile 11 is established above cement sand bed, asbestos cement 8 is filled with in gap between outside rim of a cup and pool wall, insert embedding envelope putty 10 and BW rubber seal glue 9 between inner side rim of a cup and pool wall gap, top, gap is filled with expansion waterproofing mortar 7.
Work progress: first construct pond baseboard 1 and inner side rim of a cup 3, base plate and inner side rim of a cup answer one-time continuous to pour into a mould, and should first be cleaned out by rim of a cup when pool wall 2 is constructed, and smear 16mm solid cement mortar 12 at the bottom of rim of a cup, establish the thick rubber tile 11 of 4mm above.Then the prestress wire 5 of colligation pool wall, after checking prestress wire colligation firmly, disposable continuous pouring pool wall concrete becomes ring orientation prestress reinforcing bar.Treat that pool wall concrete strength reaches designing requirement post tensioning ring orientation prestress reinforcing bar, cast outside rim of a cup after stretch-draw ring orientation prestress reinforcing bar, the filling work in gap between pool wall and rim of a cup is carried out after outside rim of a cup concrete reaches intensity, first insert in gap between outside rim of a cup 4 and pool wall inside asbestos cement 8 and between rim of a cup and pool wall gap, insert embedding envelope putty 10, then seal with BW rubber seal glue 9, finally fill up the top, gap of both sides with expansion waterproofing mortar 7.After completing pool construction, can carry out pond examination water test, the Insulation carried out again after qualified outside pool wall is installed extruded sheet 13 and backfills foundation ditch.

Claims (2)

1. the cooling tower water pool structure of a cold district unbonded pre-stressed construction, longitudinal nonprestressed reinforcement is provided with in pool wall, it is characterized in that: the skin of pool wall is arranged circumferentially no-cohesive prestressed reinforcement, the extruded sheet of pool wall arranged outside for being incubated, pool wall and base plate make hinged joint.
2. the cooling tower water pool structure of a cold district unbonded pre-stressed construction, it is characterized in that: described hinged joint is pond baseboard and pool wall fluid concrete respectively, substrate arranges inner side rim of a cup and outside rim of a cup, it is cement sand bed bottom rim of a cup, one deck rubber tile is established above cement sand bed, between outside rim of a cup and pool wall, be filled with asbestos cement in gap, insert embedding envelope putty and BW rubber seal glue between inner side rim of a cup and pool wall gap, top, gap is filled with expansion waterproofing mortar.
CN201520870479.4U 2015-11-04 2015-11-04 Cooling tower pond structure of in cold areas prestressing without bondn structure Active CN205224781U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520870479.4U CN205224781U (en) 2015-11-04 2015-11-04 Cooling tower pond structure of in cold areas prestressing without bondn structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520870479.4U CN205224781U (en) 2015-11-04 2015-11-04 Cooling tower pond structure of in cold areas prestressing without bondn structure

Publications (1)

Publication Number Publication Date
CN205224781U true CN205224781U (en) 2016-05-11

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Application Number Title Priority Date Filing Date
CN201520870479.4U Active CN205224781U (en) 2015-11-04 2015-11-04 Cooling tower pond structure of in cold areas prestressing without bondn structure

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CN (1) CN205224781U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112392073A (en) * 2020-12-07 2021-02-23 中国建筑第四工程局有限公司 Self-waterproof structure without seam and wrapping structure and construction method thereof
CN112663774A (en) * 2021-01-18 2021-04-16 中铁八局集团有限公司 Construction method of unbonded prestressed large-diameter reinforced concrete thin-wall circular water tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112392073A (en) * 2020-12-07 2021-02-23 中国建筑第四工程局有限公司 Self-waterproof structure without seam and wrapping structure and construction method thereof
CN112663774A (en) * 2021-01-18 2021-04-16 中铁八局集团有限公司 Construction method of unbonded prestressed large-diameter reinforced concrete thin-wall circular water tank

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