CN104895230A - Post-cast belt for precast composite floor slabs and construction method of post-cast belt - Google Patents

Post-cast belt for precast composite floor slabs and construction method of post-cast belt Download PDF

Info

Publication number
CN104895230A
CN104895230A CN201510214381.8A CN201510214381A CN104895230A CN 104895230 A CN104895230 A CN 104895230A CN 201510214381 A CN201510214381 A CN 201510214381A CN 104895230 A CN104895230 A CN 104895230A
Authority
CN
China
Prior art keywords
prefabricated
layer
cast
post
last layer
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201510214381.8A
Other languages
Chinese (zh)
Inventor
吴敦军
李宁
许小俊
王流金
汪杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Yangtze River Urban Architectural Design Co Ltd
Original Assignee
Nanjing Yangtze River Urban Architectural Design Co Ltd
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.)
Filing date
Publication date
Application filed by Nanjing Yangtze River Urban Architectural Design Co Ltd filed Critical Nanjing Yangtze River Urban Architectural Design Co Ltd
Priority to CN201510214381.8A priority Critical patent/CN104895230A/en
Publication of CN104895230A publication Critical patent/CN104895230A/en
Pending legal-status Critical Current

Links

Abstract

The invention discloses a post-cast belt for precast composite floor slabs and a construction method of the post-cast belt. The post-cast belt comprises a post-cast layer cast in a gap reserved between cast-in-place layers, the post-cast layer covers an abutted seam of two precast bottom plates, fast-easy closing meshes are arranged between contacting surfaces among the post-cast layer and the cast-in-place layers on two sides, bottom plate reinforcing steel bars are laid in the precast bottom plates, additional reinforcing steel bars are arranged at the abutted seam of the two precast bottom plates, and continuous negative bending moment reinforcing steel bars penetrate the insides of the cast-in-place layers and the post-cast layer. Compared with the prior art, the post-cast belt has the advantages that the operation of erecting a formwork again on site is omitted, the hidden danger of water penetration of the post-cast layer can be avoided, construction cost is reduced, and the post-cast belt is compact in casting.

Description

A kind of ater-casting of Prefabricated stacking floor and construction method thereof
Technical field
The invention belongs to technical field of civil engineering, relate to a kind of construction method of Prefabricated stacking floor, particularly relate to a kind of ater-casting and construction method thereof of Prefabricated stacking floor.
Background technology
In order to prevent Large Floor due to temperature, shrink potential fracture, avoid floor to ftracture, generally according to design or job specfication requirement, need stay in relevant position and establish ater-casting; But traditional ater-casting need install template, cannot ensure the planeness at the bottom of plate, also need in addition to arrange steel plate for sealing water, its welding quality and raw material quality directly affect stagnant water effect.
Summary of the invention
The present invention needs the problems referred to above solved to be for above-mentioned the deficiencies in the prior art, and provides a kind of ater-casting and construction method thereof of Prefabricated stacking floor.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of ater-casting of Prefabricated stacking floor, comprise to be cast between in-situ layer the last layer in the gap reserved, and described last layer covers on the piece position of two pieces of prefabricated panels, fast easy-to-closing mesh sheet is equipped with between contact surface between described last layer and the in-situ layer of both sides, baseplate reinforcing bar is equipped with in described prefabricated panel, add additional bar in the piece position of two pieces of prefabricated panels, described in-situ layer and the inside of last layer are run through near upper end surface and are provided with continuous negative reinforcement.
Separately be provided with superimposed truss bars to be fixedly connected with baseplate reinforcing bar is vertical, the free end of described superimposed truss bars stretches into last layer.
The width of described last layer is 800cm.
Described last layer adopts microdilatancy pea gravel concreten to build.
Described additional bar is double-layer double-direction steel mesh reinforcement, and the specification of the specification of reinforcing bar that adopts of double-layer double-direction steel mesh reinforcement and spacing and the reinforcing bar that baseplate reinforcing bar adopts and spacing identical.
The construction method of the ater-casting of Prefabricated stacking floor of the present invention, comprises the following steps:
A, lift prefabricated panel by construction requirement, between two pieces of prefabricated panels, form piece position;
B, add additional bar in piece position, additional bar runs through in-situ layer and last layer, and the every limit of the lap length of additional bar is the La of 1.6 times;
C, lay continuous negative reinforcement on prefabricated panel top, continuous negative reinforcement runs through in-situ layer and last layer;
Reservedly on D, piece position between two pieces of prefabricated panels be used on the region of building last layer, and be provided with fast easy-to-closing mesh sheet as barrier in the both sides in this region, with the in-situ layer of concreting last layer both sides;
E, after the concrete shrinkage of in-situ layer completes, build last layer again.
It is two months that the concrete shrinkage of described in-situ layer completes the required time.
Described prefabricated panel is prefabricated with superimposed truss bars, and two pieces of superimposed truss barses lifted on prefabricated panel are parallel to each other, and the piece position between two pieces of prefabricated panels.
Compared with prior art, the invention has the beneficial effects as follows: the present invention utilizes prefabricated panel as the soffit formwork of last layer at the last layer of Prefabricated stacking floor, eliminate the work of on-the-spot formwork supporting plate again relative to the way of traditional last layer; Because prefabricated panel and periphery floor form entirety, the hidden danger that last layer seeps water can be avoided; More traditional last layer can save the setting of waterstop, reduces construction cost, and last layer concrete adopts microdilatancy pea gravel concreten, and guarantee is built closely knit.
Prefabricated stacking floor is the assembled integral floor that precast plate and cast-in-situ concrete surface layer are formed by stacking.Prefabricated stacking floor combines the advantage that prefabricated assembled industrialization degree is high and full cast-in-place integral is good, can meet the requirement of standardized designs, factorial praluction and prefabricated construction.
Accompanying drawing explanation
Fig. 1 is the ater-casting of Prefabricated stacking floor of the present invention and the structural representation of construction method thereof;
Wherein, 1, in-situ layer, 2, last layer, 3, prefabricated panel, 4, fast easy-to-closing mesh sheet, 5, baseplate reinforcing bar, 6, superimposed truss bars, 7, additional bar, 8, continuously negative reinforcement.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
As shown in Figure 1, a kind of ater-casting of Prefabricated stacking floor, comprise to be cast between in-situ layer 1 the last layer 2 in the gap reserved, and described last layer 2 covers on the piece position of two pieces of prefabricated panels 3, fast easy-to-closing mesh sheet 4 is equipped with between contact surface between described last layer 2 and the in-situ layer 1 of both sides, prevent last layer 2 both sides from pouring in last layer 2 region for the concrete of building in-situ layer 1, crude can be formed on fast easy-to-closing mesh sheet 4 surface again simultaneously, be conducive to the bonding of new-old concrete; Be equipped with baseplate reinforcing bar 5 in described prefabricated panel 3, add additional bar 7 in the piece position of two pieces of prefabricated panels 3, described in-situ layer 1 and the inside of last layer 2 are run through near upper end surface and are provided with continuous negative reinforcement 8.
Separately be provided with superimposed truss bars 6 to be fixedly connected with baseplate reinforcing bar 5 is vertical, the free end of described superimposed truss bars 6 stretches into last layer 2.
The width of described last layer 2 is 800cm.
Described last layer 2 adopts microdilatancy pea gravel concreten to build, and guarantee is built closely knit.
Described additional bar 7 is double-layer double-direction steel mesh reinforcement, and the specification of the specification of reinforcing bar that adopts of double-layer double-direction steel mesh reinforcement and spacing and the reinforcing bar that baseplate reinforcing bar 5 adopts and spacing identical.
The construction method of the ater-casting of Prefabricated stacking floor of the present invention, comprises the following steps:
A, lift prefabricated panel 3 by construction requirement, between two pieces of prefabricated panels 3, form piece position;
B, add additional bar 7 in piece position, additional bar 7 runs through in-situ layer 1 and last layer 2, and the every limit of the lap length of additional bar 7 is the La of 1.6 times, and wherein La represents the least anchorage length of longitudinal tensile reinforcing bar;
C, lay continuous negative reinforcement 8 on prefabricated panel 3 top, continuous negative reinforcement 8 runs through in-situ layer 1 and last layer 2;
Reservedly on D, piece position between two pieces of prefabricated panels 3 be used on the region of building last layer 2, and be provided with fast easy-to-closing mesh sheet 4 as barrier in the both sides in this region, with the in-situ layer 1 of concreting last layer 2 both sides;
E, after the concrete shrinkage of in-situ layer 1 completes, build last layer 2 again.
It is two months that the concrete shrinkage of described in-situ layer 1 completes the required time.
Described prefabricated panel 3 is prefabricated with superimposed truss bars 6, two pieces of superimposed truss barses 6 lifted on prefabricated panel 3 to be parallel to each other, and the piece position between two pieces of prefabricated panels 3.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on manual, must determine its technical scope according to right.

Claims (8)

1. the ater-casting of a Prefabricated stacking floor, it is characterized in that: comprise to be cast between in-situ layer the last layer in the gap reserved, and described last layer covers on the piece position of two pieces of prefabricated panels, fast easy-to-closing mesh sheet is equipped with between contact surface between described last layer and the in-situ layer of both sides, baseplate reinforcing bar is equipped with in described prefabricated panel, add additional bar in the piece position of two pieces of prefabricated panels, described in-situ layer and the inside of last layer are run through near upper end surface and are provided with continuous negative reinforcement.
2. the ater-casting of Prefabricated stacking floor according to claim 1, is characterized in that: be separately provided with superimposed truss bars and be fixedly connected with baseplate reinforcing bar is vertical, the free end of described superimposed truss bars stretches into last layer.
3. the ater-casting of Prefabricated stacking floor according to claim 1, is characterized in that: the width of described last layer is 800cm.
4. the ater-casting of Prefabricated stacking floor according to claim 1, is characterized in that: described last layer adopts microdilatancy pea gravel concreten to build.
5. the ater-casting of Prefabricated stacking floor according to claim 1, it is characterized in that: described additional bar is double-layer double-direction steel mesh reinforcement, and the specification of the specification of reinforcing bar that adopts of double-layer double-direction steel mesh reinforcement and spacing and the reinforcing bar that baseplate reinforcing bar adopts and spacing identical.
6. the construction method of the ater-casting of Prefabricated stacking floor according to claim 1, is characterized in that: comprise the following steps:
A, lift prefabricated panel by construction requirement, between two pieces of prefabricated panels, form piece position;
B, add additional bar in piece position, additional bar runs through in-situ layer and last layer, and the every limit of the lap length of additional bar is the La of 1.6 times;
C, lay continuous negative reinforcement on prefabricated panel top, continuous negative reinforcement runs through in-situ layer and last layer;
Reservedly on D, piece position between two pieces of prefabricated panels be used on the region of building last layer, and be provided with fast easy-to-closing mesh sheet as barrier in the both sides in this region, with the in-situ layer of concreting last layer both sides;
E, after the concrete shrinkage of in-situ layer completes, build last layer again.
7. the construction method of the ater-casting of Prefabricated stacking floor according to claim 6, is characterized in that: it is two months that the concrete shrinkage of described in-situ layer completes the required time.
8. the construction method of the ater-casting of Prefabricated stacking floor according to claim 6, it is characterized in that: described prefabricated panel is prefabricated with superimposed truss bars, two pieces of superimposed truss barses lifted on prefabricated panel are parallel to each other, and the piece position between two pieces of prefabricated panels.
CN201510214381.8A 2015-04-30 2015-04-30 Post-cast belt for precast composite floor slabs and construction method of post-cast belt Pending CN104895230A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510214381.8A CN104895230A (en) 2015-04-30 2015-04-30 Post-cast belt for precast composite floor slabs and construction method of post-cast belt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510214381.8A CN104895230A (en) 2015-04-30 2015-04-30 Post-cast belt for precast composite floor slabs and construction method of post-cast belt

Publications (1)

Publication Number Publication Date
CN104895230A true CN104895230A (en) 2015-09-09

Family

ID=54028156

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510214381.8A Pending CN104895230A (en) 2015-04-30 2015-04-30 Post-cast belt for precast composite floor slabs and construction method of post-cast belt

Country Status (1)

Country Link
CN (1) CN104895230A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105155855A (en) * 2015-09-11 2015-12-16 孟凡林 Arrangement method of short-span negative-moment reinforcing steel bars of assembled core post-grouted concrete plates
CN105507470A (en) * 2015-12-31 2016-04-20 中南大学 Periphery-overlapped integral fabricated floor and construction method thereof
CN110374242A (en) * 2019-07-17 2019-10-25 梁涛 A kind of assembled laminated floor slab
CN111287373A (en) * 2020-02-23 2020-06-16 西安理工大学 Connecting structure and connecting method for prefabricated composite slab and steel beam

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201241343Y (en) * 2008-07-15 2009-05-20 北京建工集团有限责任公司 Rear pouring belt precast concrete suspending board
CN101832026A (en) * 2010-04-07 2010-09-15 南通建工集团股份有限公司 Construction method of sole plate post-poured strip form bracing system
EP2325409A1 (en) * 2009-11-23 2011-05-25 Area Prefabbricati S.P.A. Method for making a floor with flat intrados prefabricated elements and the floor obtained thereby
CN103469825A (en) * 2013-09-04 2013-12-25 中建三局第一建设工程有限责任公司 Prefabricated water-resistant post-pouring belt formwork and installation method
CN104234088A (en) * 2014-09-23 2014-12-24 南京长江都市建筑设计股份有限公司 Post-cast strip structure of prefabricated double-layer laminate basement external wall panel and construction procedure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201241343Y (en) * 2008-07-15 2009-05-20 北京建工集团有限责任公司 Rear pouring belt precast concrete suspending board
EP2325409A1 (en) * 2009-11-23 2011-05-25 Area Prefabbricati S.P.A. Method for making a floor with flat intrados prefabricated elements and the floor obtained thereby
CN101832026A (en) * 2010-04-07 2010-09-15 南通建工集团股份有限公司 Construction method of sole plate post-poured strip form bracing system
CN103469825A (en) * 2013-09-04 2013-12-25 中建三局第一建设工程有限责任公司 Prefabricated water-resistant post-pouring belt formwork and installation method
CN104234088A (en) * 2014-09-23 2014-12-24 南京长江都市建筑设计股份有限公司 Post-cast strip structure of prefabricated double-layer laminate basement external wall panel and construction procedure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105155855A (en) * 2015-09-11 2015-12-16 孟凡林 Arrangement method of short-span negative-moment reinforcing steel bars of assembled core post-grouted concrete plates
CN105507470A (en) * 2015-12-31 2016-04-20 中南大学 Periphery-overlapped integral fabricated floor and construction method thereof
CN110374242A (en) * 2019-07-17 2019-10-25 梁涛 A kind of assembled laminated floor slab
CN111287373A (en) * 2020-02-23 2020-06-16 西安理工大学 Connecting structure and connecting method for prefabricated composite slab and steel beam

Similar Documents

Publication Publication Date Title
CN106869172B (en) In-situ deposited prefabricated split-mounting type subway underground station construction method
CN203546589U (en) Steel girder-integral lifting arm prefabricated concrete bridge panel combined girder bridge
CN104805866B (en) Prefabricated pipe gallery and construction method
US20160340855A1 (en) Modular construction mold apparatus and method for constructing concrete buildings and structures
CN102808465B (en) Assembly connecting structure and assembly connecting method of assembled concrete frame and shear wall combination
CN105019475A (en) Prefabricated integral concrete comprehensive pipe rack and construction method
CN105971159B (en) A kind of masonry shell mechanism in 3D printing reinforced masonry shear wall
CN104652654B (en) Assembled shear wall structure
CN104453093B (en) Prefabricated steel reinforced concrete beam with transversal high-strength concrete clapboard, and construction method
CN103422606B (en) Structural column erecting-free block and construction method
CN103572873B (en) Assembled integral floor and construction method thereof
CN205857448U (en) A kind of assembly concrete shear wall structure
CN203113580U (en) Concrete laminated slab with steel bar trusses
CN104532997B (en) A kind of precast assemble floor system and its construction method
CN204435638U (en) A kind of hollow laminated floor slab
CN106284045B (en) A kind of secondary overlapping concrete slab girder steel combined bridge structure and its construction method
CN201738443U (en) Prefabricated concrete double-overlapping beam
CN104060761B (en) U-shaped steel concrete combination beam and construction method thereof
CN103114669A (en) Ribbed steel bar truss concrete superimposed sheet and construction method thereof
CN101280547A (en) Corrugated steel web box girder with steel-concrete combined board lower wing edges
CN101798794B (en) Composite box girder bridge erected in advance by using corrugated steel web steel girders and construction method thereof
CN204531066U (en) Assembly concrete-filled steel tube shear wall splits assembled syndeton
CN201087490Y (en) Novel steel reinforced concrete superimposed sheet
CN106703269A (en) Prestressed concrete superimposed sheet with steel trusses and manufacturing method
CN206070562U (en) Subassembly formula underground structure

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20150909