CN108978712A - Arch top plate precast assembly structure and its construction method - Google Patents

Arch top plate precast assembly structure and its construction method Download PDF

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Publication number
CN108978712A
CN108978712A CN201810878987.5A CN201810878987A CN108978712A CN 108978712 A CN108978712 A CN 108978712A CN 201810878987 A CN201810878987 A CN 201810878987A CN 108978712 A CN108978712 A CN 108978712A
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CN
China
Prior art keywords
arch
plate
precast assembly
construction
bracket
Prior art date
Application number
CN201810878987.5A
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Chinese (zh)
Inventor
贾吉敏
吴晓风
徐佳乐
滕延锋
吴欣之
金晶
姚伟峰
郑祥杰
周蓉峰
黄卫东
周铮
夏卡达
李操
Original Assignee
上海市机械施工集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 上海市机械施工集团有限公司 filed Critical 上海市机械施工集团有限公司
Priority to CN201810878987.5A priority Critical patent/CN108978712A/en
Publication of CN108978712A publication Critical patent/CN108978712A/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/04Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof

Abstract

The invention discloses a kind of arch top plate precast assembly structure and its construction methods, are related to hypogee technical field of construction.The arch top plate precast assembly structure includes: arch top plate, pouring layer and Di Qiang, and on described ground wall, the pouring layer is cast on arch top plate the arch mounting of roof plate.The arch top plate precast assembly construction method is first prefabricated arch top plate, then ground wall and bracket are poured, then prefabricated arch top plate is installed, finally on the arch top plate being installed, using arch top plate as bed die, using bracket as side form casting concrete pouring layer.Using the above structure and method, construction period can be shortened, construction site is reduced and occupy, promote construction quality and construction working efficiency.

Description

Arch top plate precast assembly structure and its construction method
Technical field
The present invention relates to hypogee technical field of construction, especially a kind of arch top plate precast assembly structure and its construction Method.
Background technique
With the fast development of China's urban construction, subway station and Tunnel Engineering are quickly grown, metro operation mileage It is continuously increased, people are more and more for the concern of subway, also propose higher want to convenience, the aesthetics of subway station It asks.In order to improve the utilization rate of the underground space, the trip experience of passenger is promoted, no column station scheme is suggested, and underground is bright at present Dig station, platform width generallys use twin columns three across structure in 12m or more, platform width 10m and following relatively mostly uses single-column Twin spans structure, the station of a small number of platform width 8m using no column single span structure type.In the current generation, domestic station is used With the raising of functional requirement, also subway station is gradually put forward higher requirements across no centre-pillar structure greatly.Underground space engineering arch The utilization rate of the underground space can be improved in shape top board structure, improves the visual effect of people, reduces sense of depression, improves aesthetics.
Top board structure construction, construction quality and construction efficiency are directly concerning the construction period and periphery for arriving entire underground engineering Construction environment, while also concerning the control for arriving construction cost, but the prior art generallys use reinforced concrete cast-in-situ that formula is applied Work, not only long construction period, a large amount of places of occupancy, wet construction complex procedures, exposure duration are long, but also quality is difficult to ensure, not Actual demand can be met conscientiously.
Summary of the invention
The purpose of the present invention is to provide a kind of arch top plate precast assembly structure and its construction methods, at least solve following One in technical problem, including shorten construction period, reduce construction site occupancy, simplify wet construction process, promote engineering matter Amount and construction working efficiency.
In order to achieve the above object, the present invention provides a kind of arch top plate precast assembly structures, comprising: ground wall, arch Top plate and pouring layer, on described ground wall, the pouring layer is cast on the arch top plate arch mounting of roof plate.
Optionally, it is provided with embedded fashioned iron in the arch top plate, the embedded fashioned iron is from the arch top plate arc-shaped side Edge insertion, single arch top plate have several rows to embed fashioned iron, have spacing between embedded fashioned iron.
Optionally, pull rod, the pull rod spacing and the embedded fashioned iron spacing phase are additionally provided between the embedded fashioned iron Deng.
Optionally, arch top plate thickness direction is provided with tongue and groove, and the tongue and groove is embedded in rubber water-proof item.
Optionally, the superposed surfaces of shear reinforcement or the arch top plate are reserved in the superposed surfaces of the arch top plate It is reserved with rigid truss.
Optionally, dabbing is provided in the superposed surfaces of the arch top plate.
Optionally, bracket, the ground of the arch top plate and two sides are additionally provided between the arch top plate and described ground wall Wall is connected by bracket, the inwall formed by integrally casting of the bracket and described ground wall.
Optionally, the arch top plate and bracket connector use tongue-and-groove type.
Optionally, the inwall of the bracket position is connect with ground wall by connector.
Optionally, the bracket is connect with arch top plate using steel node structure, double by web between steel node fashioned iron Face paste plate is welded to connect and the unilateral weldering welding of piece cover board up and down.
Optionally, the steel mesh of the pouring layer is laid in the superposed surfaces of the arch top plate and with bracket by plugging into The perps of device connection, the perps of upper layer concrete lift and lower layer's precast concrete arch top plate is not on one wire.
Optionally, waterproof roll is additionally provided in the pouring layer.
The present invention also provides a kind of construction methods of arch top plate precast assembly structure, comprising the following steps:
S1: prefabricated arch top plate;
S2: ground wall and bracket are poured;
S3: installation arch top plate;
S4: the pouring concrete pouring layer on the arch top plate.
Optionally, the prefabricated arch top plate uses steel form, and arcual component is overturn when prefabricated, makes arcual component width side To stress.
Optionally, the arch top plate lifting construction uses movable top stage vehicle.
Optionally, include the following steps: when casting concrete pouring layer in the S4
S41: it is laid with the steel mesh of pouring layer in arch top plate superposed surfaces, and carries out the company for reserving connector with bracket It connects;
S42: casting concrete completes in-situ layer, and when pouring, bed die is precast concrete arch top plate, and side form is bracket.
Optionally, after the S42, further includes: the laying water-proof coiled material on the in-situ layer, then earthing fills.
Compared with prior art, it the beneficial effects of the present invention are: prefabricated arch top plate uses prefabrication, is not take up and applies Work scene, while improving construction efficiency, can also reduce project cost.When being laid with arch top plate, due to arch top plate It is pre-formed in advance, it does not need to set up full hall foot hand, reduction project cost can also be played, shorten the work of construction period With.After laying arch top plate, then poured in place concrete pouring layer, because having had arch top plate and bracket, this Stage does not need shuttering supporting, does not need full hall foot hand, counterdie is prefabricated arch top plate, and side form is bracket.Concrete is poured After pouring layer, entire top plate and Di Qiang are combined as a whole, and globality and continuity are good, are conducive to the shock resistance for enhancing building Can, while template is also saved in work progress, reduce project cost.
Detailed description of the invention
Fig. 1 arch top plate precast assembly structural schematic diagram.
The pre- steel node schematic diagram of Fig. 2 arch top plate.
Fig. 3 arch top plate lifts intention in advance.
Wherein: 10- bracket, the ground 20- wall, 21- inwall, 30- pouring layer, 40- arch top plate, 41- steel node, in 42- Serve as a contrast fashioned iron, 43- pull rod.
Specific embodiment
A specific embodiment of the invention is described in more detail below in conjunction with schematic diagram.According to following description and Claims, advantages and features of the invention will become apparent from.It should be noted that attached drawing is all made of very simplified form and Using non-accurate ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
Fig. 1 is arch top plate precast assembly structural schematic diagram, as shown in Figure 1, arch top plate precast assembly structure includes: ground Wall 20, arch top plate 40 and pouring layer 30, the arch top plate 40 are mounted on described ground wall 20, and the pouring layer 30 pours On the arch top plate 40, described ground wall, arch top plate and pouring layer are integrated into a whole after the completion of pouring.
The construction method of arch top plate precast assembly structure the following steps are included:
S1: prefabricated arch top plate;
S2: ground wall and bracket are poured;
S3: installation arch top plate;
S4: the pouring concrete pouring layer on the arch top plate.
Next, will be according to sequence of construction, CONSTRUCTED SPECIFICATION of the combination schematic diagram to arch top plate precast assembly structure, arch The detailed content of each step of construction method of top plate precast assembly structure illustrates in the present embodiment.
Arch top plate 40 prefabricated first.The arch top plate 40 uses prefabrication, is not take up construction site, nor affects on Construction speed.Steel form is used when the arch top plate 40 is prefabricated, while improving the flatness of prefabricated arch top plate, makes structure Part is quality controllable.Secondly, when prefabricated arch top plate 40 overturn arch top plate, make the width direction of arcual component by Power, when concrete strength reaches 75% i.e. collapsible die, steel form used of being formed can quickly have enough to meet the need.If arch top plate arching Shape is cast-in-place, and formwork bracing system is complicated, and concrete strength need to reach 100% ability collapsible die, and steel form cannot quickly have enough to meet the need, with Cast-in-place concrete is than without too big advantage.
Fig. 2 is the pre- steel node schematic diagram of arch top plate, and Fig. 3 is that arch top plate lifts intention in advance.As shown in Figures 2 and 3, Embedded fashioned iron 42 is provided in arch top plate 40, the insert depth of the embedded fashioned iron 42 meets anchorage depth requirement, single to encircle There are three rows to embed fashioned iron 42 in shape top plate 40, spacing distance 1000mm is additionally provided with pull rod 43, institute between the embedded fashioned iron 42 Spacing and 42 spacing of embedded fashioned iron for stating pull rod 43 are same.The pre-buried embedded fashioned iron being arranged in the arch top plate 40 42 and pull rod 43 can improve stress of the arch top plate 40 in transport, lifting, in place and subsequent one-piece casting work progress Performance, so that prefabricated arch top plate 40 is in overall process always in the advantageous working condition being pressurized.It is understood that The quantity of embedded fashioned iron and interval are not changeless, and preferred three row embeds fashioned iron in the present embodiment, embed between fashioned iron Spacing 1000mm be one of preferred embodiment, the quantity of embedded fashioned iron can be adjusted according to practice situation in concrete practice And spacing.
Optionally, 40 thickness direction of arch top plate is provided with tongue and groove, and the tongue and groove is embedded in rubber water-proof item, to play Effect of the waterproof every infiltration.In prefabrication process, the superposed surfaces of the arch top plate and the pouring layer are reserved with shear reinforcement, or The superposed surfaces of arch top plate described in person and the pouring layer are reserved with rigid truss, at the same time, the superposed surfaces of the arch top plate On be additionally provided with dabbing, effect is to be firmly bonded arch top plate and pouring layer, forms an entirety.
After the completion of arch top plate is prefabricated, ground wall and bracket are poured.It should be noted that since arch top plate uses factory Prefabricated, pouring ground wall and bracket can carry out simultaneously with two steps of prefabricated arch top plate, to shorten the construction period.
As shown in Figure 1, the arch top plate 40 is connected with the ground wall 20 of two sides using bracket 10, the bracket 10 and institute 21 formed by integrally casting of inwall of ground wall is stated, the inwall 21 of bracket position is connect with ground wall by connector.When pouring bracket, Connector and embedded fashioned iron are also reserved on bracket, connector is used to connect the steel mesh of pouring layer 30, and embedded fashioned iron is for connecting Connect the embedded fashioned iron 42 of arch top plate.
After the completion of the bracket 10 and described ground wall 20 pour, prefabricated arch top plate 40 is installed.As shown in figure 3, arch Shape top plate lifting construction uses movable top stage vehicle, and trolley can walk on plate in the station structure that construction is completed, by arch Top plate jacking installation.
To meet live Fast Installation, meet the requirement that installation trolley quickly has enough to meet the need, at arch top plate 40 and bracket 10 It is connected using steel node 41, as shown in Fig. 2, the two-sided pasting board welded connecting of web and upper and lower piece use can be passed through between embedded fashioned iron The unilateral weldering welding of cover board, the welding of embedded fashioned iron meets strength and stability, and without waterproof requirement, the waterproof of top plate is relied on Pouring layer and outer waterproof above guarantees.Arch top plate and bracket connector use tongue-and-groove type, make to be completely embedded.
It, can casting concrete pouring layer 30 after installing arch top plate and carrying out the connection of arch top plate and bracket.It is pouring When building concrete lift, it is first laid with the steel mesh of pouring layer in arch top plate superposed surfaces, carries out and reserves connector with bracket Connection, then casting concrete complete in-situ layer, when pouring, bed die is precast concrete arch top plate, and side form is bracket, is poured The laying water-proof coiled material after some strength is completed, last earthing landfill completes integral construction.When pouring, upper layer concreting The perps (construction joint) of the perps (construction joint) of layer 30 and lower layer's precast concrete arch top plate 40 not on one wire, with increase Infiltration improves impermeability around flow path.
To sum up, in arch top plate precast assembly structure provided in this embodiment and its construction method, top plate is divided into prefabricated Two parts of arch top plate and pouring layer, prefabricated arch top plate use prefabrication, be not take up construction site, at the same time, With pouring wall, bracket step can carry out prefabricated arch top plate step simultaneously, to shorten the construction period.Installing arch top plate Afterwards, then casting concrete pouring layer, so that arch top plate, pouring layer, bracket and Di Qiang is combined as a whole, be conducive to promote whole knot Structure rigidity promotes shock resistance.Using the above structure and method, construction period can be shortened, construction site is reduced and occupy, promoted Construction quality and construction working efficiency.Further, when prefabricated arch top plate, arch top plate is overturn, the width of arcual component is made Direction stress, when concrete strength reaches 75% i.e. collapsible die, steel form used of being formed can quickly have enough to meet the need, and improve punching block Plate utilization rate.Further, arch top plate thickness direction two sides are provided with tongue and groove, and tongue and groove is embedded in rubber water-proof item, is pouring When concrete lift, the perps (construction joint) of the perps (construction joint) of upper layer cast-in-place concrete and lower layer's precast concrete is no On one wire, integral construction is completed to re-lay waterproof roll earthing landfill on some strength after-pouring layer.By above Structures and methods, so that the saturating ability of waterproof, seepage control of entire engineering further increases.
The above is only a preferred embodiment of the present invention, does not play the role of any restrictions to the present invention.Belonging to any Those skilled in the art, in the range of not departing from technical solution of the present invention, to the invention discloses technical solution and Technology contents make the variation such as any type of equivalent replacement or modification, belong to the content without departing from technical solution of the present invention, still Within belonging to the scope of protection of the present invention.

Claims (17)

1. a kind of arch top plate precast assembly structure, comprising: ground wall, which is characterized in that further include: arch top plate and pouring layer, On described ground wall, the pouring layer is cast on the arch top plate arch mounting of roof plate.
2. arch top plate precast assembly structure according to claim 1, which is characterized in that be provided in the arch top plate Embedded fashioned iron, the embedded fashioned iron are embedded in from the arch top plate curved edge, and the arch top plate has several rows to embed fashioned iron, There is spacing between embedded fashioned iron.
3. arch top plate precast assembly structure according to claim 2, which is characterized in that also set between the embedded fashioned iron It is equipped with pull rod, the pull rod spacing and the embedded fashioned iron spacing are equal.
4. arch top plate precast assembly structure according to claim 2, which is characterized in that arch top plate thickness direction It is provided with tongue and groove, the tongue and groove is embedded in rubber water-proof item.
5. arch top plate precast assembly structure according to claim 2, which is characterized in that the superposed surfaces of the arch top plate On be reserved with shear reinforcement or the superposed surfaces of the arch top plate are reserved with rigid truss.
6. arch top plate precast assembly structure according to claim 2, which is characterized in that the superposed surfaces of the arch top plate On be provided with dabbing.
7. arch top plate precast assembly structure according to claim 2, which is characterized in that the arch top plate and described Bracket is additionally provided between wall, the arch top plate is connected with the ground wall of two sides by bracket, the bracket and described ground wall Inwall formed by integrally casting.
8. arch top plate precast assembly structure according to claim 7, which is characterized in that the arch top plate connects with bracket Head uses tongue-and-groove type.
9. arch top plate precast assembly structure according to claim 7, which is characterized in that the inwall of the bracket position It is connect with ground wall by connector.
10. arch top plate precast assembly structure according to claim 7, which is characterized in that the bracket and arch top plate It is connected using steel node structure, is welded to connect between steel node fashioned iron by the two-sided pasting board of web and piece cover board is unilateral up and down Weldering welding.
11. arch top plate precast assembly structure according to claim 1, which is characterized in that the steel mesh of the pouring layer It is laid in the superposed surfaces of the arch top plate and is connect with bracket by connector, the perps of upper layer concrete lift is under The perps of layer precast concrete arch top plate is not on one wire.
12. arch top plate precast assembly structure according to claim 1, which is characterized in that also set up in the pouring layer There is waterproof roll.
13. a kind of construction method of arch top plate precast assembly structure, which comprises the following steps:
S1: prefabricated arch top plate;
S2: ground wall and bracket are poured;
S3: installation arch top plate;
S4: the pouring concrete pouring layer on the arch top plate.
14. the construction method of the 3 arch top plate precast assembly structures according to claim 1, which is characterized in that the Prefabricated arch Shape top plate uses steel form, and arcual component is overturn when prefabricated, makes arcual component width direction stress.
15. the construction method of the 3 arch top plate precast assembly structures according to claim 1, which is characterized in that the arch top Plate lifting construction uses movable top stage vehicle.
16. the construction method of the 3 arch top plate precast assembly structures according to claim 1, which is characterized in that in the S4 When casting concrete pouring layer, include the following steps:
S41: it is laid with the steel mesh of pouring layer in arch top plate superposed surfaces, and carries out the connection for reserving connector with bracket;
S42: casting concrete completes in-situ layer, and when pouring, bed die is precast concrete arch top plate, and side form is bracket.
17. the construction method of the 6 arch top plate precast assembly structures according to claim 1, which is characterized in that in the S42 Later, further includes: the laying water-proof coiled material on the in-situ layer, then earthing fills.
CN201810878987.5A 2018-08-03 2018-08-03 Arch top plate precast assembly structure and its construction method CN108978712A (en)

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CN110080295A (en) * 2019-04-23 2019-08-02 中铁第四勘察设计院集团有限公司 A kind of lid of assembled vault greatly across no column underground structure digs full-reverse construction method
CN110080294A (en) * 2019-04-23 2019-08-02 中铁第四勘察设计院集团有限公司 A kind of lid of assembled vault greatly across no column underground structure digs half reversed construction method
CN111188412A (en) * 2020-01-10 2020-05-22 中国华西企业股份有限公司 Cast-in-place superposition construction method for thick and heavy concrete roof structure system
CN111206685A (en) * 2020-01-15 2020-05-29 上海市机械施工集团有限公司 Arch structure and construction method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110080288A (en) * 2019-04-23 2019-08-02 中铁第四勘察设计院集团有限公司 A kind of open cutting construction method of assembled vault greatly across no column underground structure
CN110080295A (en) * 2019-04-23 2019-08-02 中铁第四勘察设计院集团有限公司 A kind of lid of assembled vault greatly across no column underground structure digs full-reverse construction method
CN110080294A (en) * 2019-04-23 2019-08-02 中铁第四勘察设计院集团有限公司 A kind of lid of assembled vault greatly across no column underground structure digs half reversed construction method
CN111188412A (en) * 2020-01-10 2020-05-22 中国华西企业股份有限公司 Cast-in-place superposition construction method for thick and heavy concrete roof structure system
CN111206685A (en) * 2020-01-15 2020-05-29 上海市机械施工集团有限公司 Arch structure and construction method thereof

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