CN105568861A - Easy-disassemble type steel internal mould and construction method thereof - Google Patents
Easy-disassemble type steel internal mould and construction method thereof Download PDFInfo
- Publication number
- CN105568861A CN105568861A CN201511015047.6A CN201511015047A CN105568861A CN 105568861 A CN105568861 A CN 105568861A CN 201511015047 A CN201511015047 A CN 201511015047A CN 105568861 A CN105568861 A CN 105568861A
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- internal mold
- steel internal
- steel
- template
- detachable
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
Abstract
The invention discloses a track beam auxiliary construction device, particularly relates to an easy-disassemble type steel internal mould which comprises a top template, upper chamfering templates and lower chamfering templates which are connected in sequence; each of the top template, the upper chamfering templates and the lower chamfering templates comprises a steel panel; supporting rib plates are arranged at the edges of the steel panels; a connecting hole is correspondingly formed in the supporting rib plate of the corresponding template, so that the top template, the upper chamfering templates and the lower chamfering templates can be connected to form the steel internal mould structure after connecting pieces penetrate through the connecting holes in the supporting rib plates which get close to each other. The steel internal mould is simple and stable in structure; each single component is light in weight; machinery is not required to be used in assembling; the construction is very convenient; after connection and installation are completed, any supporting and reinforcing system is not required to be arranged in the steel internal mould, so that the internal operating space when concrete is vibrated and templates are removed is increased; the technological problem that magnetic suspension small-cross-section cup-shaped box girder floor slab concrete is difficult to vibrate is effectively solved; the steel internal mould is convenient to disassemble; mould expanding and mould shifting are less likely to occur.
Description
Technical field
The present invention relates to a kind of rail beam construction auxiliary device, particularly detachable steel internal mold and construction method thereof.
Background technology
Magnetic suspension train is a kind of train promoted by magnetic suspension force (i.e. the suction of magnetic and repulsion), train is made to be suspended in the air by the magnetic force of its track, other trains are different from when train is walked, do not need kiss the earth, therefore the resistance from air is only subject to during train operation, for the energy-saving means of transportation of the low energy, there is larger market potential.In magnetic-levitation construction, often need to build a bridge track to meet the height requirement of magnetic-levitation, this just needs to use more box-beam structure.
Traditional case beam generally adopts wooden internal mold or pre-manufactured steel internal mold to make; but because magnetic suspension train is that " embracing rail " is run; its single-line railway box section is less; larger compared to cross section, conventional boxes beam case room; after case beam completes, internal mold easily takes out; if but the box girder inner formwork of magnetic suspension train rail still adopts wooden model or ordinary steel template, installation and removal will be extremely difficult, and easily there is the phenomenon such as burst-mode, race mould.
Summary of the invention
The object of the invention is to overcome box girder inner formwork for magnetic suspension train rail according to wooden model or ordinary steel template, installation and removal will be extremely difficult, and easily there is burst-mode, run the deficiency of the phenomenons such as mould, a kind of detachable steel internal mold and construction method thereof are provided, this steel internal model structure simple and stable, after installation, do not need in internal mold to arrange any bracing reinforcement system again, increase built-in function space during stripping, be convenient to dismounting steel internal mold, not easily there is the phenomenon of swollen mould and race mould, and this steel internal mold construction method is without the need to using special-purpose machinery, construct very convenient, can overall or more piece lift together when steel internal mold has been assembled rear, effectively shorten construction period, reduce machinery and use duration, install and dismantle all very convenient, greatly reduce construction cost expense.
In order to realize foregoing invention object, the invention provides following technical scheme:
Detachable steel internal mold, comprise the top template connected successively, upper chamfering formwork and lower chamfering formwork, described top template, upper chamfering formwork and lower chamfering formwork include steel facing, the edge of described steel facing is provided with support floor, the support floor of each template offers connecting hole accordingly, after making to pass the connecting hole on support floor close to each other by connector, top template, upper chamfering formwork and lower chamfering formwork can be linked as the steel internal model structure that there is opening lower end.
This steel internal model structure simple and stable, single construction weight is little, without the need to using machinery during assembling, construct very convenient, after connection completes, do not need in this steel internal mold to arrange any bracing reinforcement system again, increase built-in function space when vibrated concrete and stripping, the technical barrier that effective solution magnetic suspension small bore cup-shaped case beam underplate concrete difficulty is vibrated, is convenient to dismounting steel internal mold, not easily occurs the phenomenon of swollen mould and race mould; And steel internal mold sectional dimension is little, overall or more piece can lifts together when steel internal mold has been assembled rear, effectively shorten construction period, reduce machinery and use duration, install and dismounting all very convenient, greatly reduce construction cost expense.
As preferably, the steel facing that described support floor is corresponding with it is vertical to be arranged.
As preferably, described connector is for hooking bolt.Adopt hook bolt top template, upper chamfering formwork and lower chamfering formwork to be coupled together, be connected firmly and remove conveniently.
As preferably, also comprise a reinforcing keel be located in steel internal mold, described reinforcing keel are that the cross sectional shape of shaped steel and steel internal mold adapts.The cross sectional shape of steel internal mold herein refers to and cuts with the face axially vertical with steel internal mold the cross sectional shape seen, the cross sectional shape being arranged on reinforcing keel in steel internal mold and steel internal mold adapts, and while increase steel form rigidity, can not disturb the space of form removal.
As preferably, be provided with middle part and connect template between described upper chamfering formwork and lower chamfering formwork, described middle part connects template and comprises steel facing and be connected to the support floor on steel facing.Arrange middle part between upper chamfering formwork and lower chamfering formwork and connect template, the middle part as case beam makes internal mold, meets different user demands.
A construction method for detachable steel internal mold, comprises the following steps:
1) detachable steel internal mold design: design, to meet user demand according to the physical dimension of beam body and the stressed structure to steel internal mold and rigidity;
2) detachable steel internal mold design and assembly: first carry out lower chamfering formwork location, install chamfering formwork and top template successively after having located, are tied by hook between each template and connect and couple together with reinforcing keel;
3) detachable steel internal mold is installed and is reinforced: after steel internal mold has been assembled, and uses mobile crane by the lifting of steel internal mold merogenesis on beam body baseplate reinforcing bar, and positions steel internal mold;
4) concreting: first build the concrete bottom steel internal mold, treats that lower concrete has the concrete of some strength after-pouring belly template and top template position; Because this detachable steel internal mold bottom is without base plate, poker vibrator after bottom concreting in lifts to internal mold, can be used to vibrate lower concrete, solve the difficult problem that small bore cup-shaped case beam underplate concrete base plate difficulty is vibrated;
5) this detachable steel internal mold is removed: dismounting steel internal mold after the concrete strength of beam body is up to standard.
As preferably, step 2) in need each template of cleaning polishing before assembling steel internal mold, ensure that template external surface is clean and tidy without projection.Ensure the structural integrity after beam body construction, ensure its structural strength.
As preferably, step 2) in hook bolt be that M12 hooks bolt.
As preferably, the support floor reinforcing keel and each template in step 3) adopts hook to tie and connects.
As preferably, step 5) central sill body concrete curing age is after 3 days, and concrete strength just carries out the dismounting of steel internal mold after reaching more than 70% of design strength.
This steel internal mold construction method, without the need to using special-purpose machinery, is constructed very convenient, can overall or more piece lift together when steel internal mold has been assembled rear, effectively shorten construction period, reduce machinery and use duration, install and dismantle all very convenient, greatly reducing construction cost expense.
compared with prior art, beneficial effect of the present invention:
1, this steel internal model structure simple and stable, single construction weight is little, without the need to using machinery during assembling, construct very convenient, after connection completes, do not need in this steel internal mold to arrange any bracing reinforcement system again, increase built-in function space when vibrated concrete and stripping, the technical barrier that effective solution magnetic suspension small bore cup-shaped case beam underplate concrete difficulty is vibrated, is convenient to dismounting steel internal mold, not easily occurs the phenomenon of swollen mould and race mould;
2, because this detachable steel internal mold bottom is without base plate, poker vibrator after bottom concreting in lifts to internal mold, can be used to vibrate lower concrete, solve the difficult problem that small bore cup-shaped case beam underplate concrete base plate difficulty is vibrated;
3, this steel internal mold construction method is without the need to using special-purpose machinery, constructs very convenient, can overall or more piece lift together when steel internal mold has been assembled rear, effectively shorten construction period, reduce machinery and use duration, install and dismantle all very convenient, greatly reducing construction cost expense
4, because internal mold sectional dimension is little, can overall or more piece lift together when internal mold has been assembled rear, effectively shorten construction period, reduce machinery and use duration, install and dismantle all very convenient, greatly reduce construction cost expense, compared with the wooden internal mold of tradition, pre-manufactured steel internal mold, save lot of materials expense, labour cost and mechanical stage student contributions pooled to pay for class activities.
Accompanying drawing illustrates:
Fig. 1 is magnetic suspension small bore case beam detachable steel internal model structure schematic diagram of the present invention.
Fig. 2 is for the steel internal model structure schematic diagram in the middle part of beam body in embodiment 2.
Mark in figure: 1-top template, the upper chamfering formwork of 2-, chamfering formwork under 3-, 4-hooks bolt, and 5-hooks bolt nut, and 6-reinforces keel, and 7-supports floor, connects template in the middle part of 8-.
Detailed description of the invention
Below in conjunction with test example and detailed description of the invention, the present invention is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following embodiment, all technology realized based on content of the present invention all belong to scope of the present invention.
Embodiment 1
The steel internal mold of the present embodiment is used for the box girder construction of beam end of body, as shown in Figure 1, the detachable steel internal mold of the present embodiment, comprise the top template 1 connected successively, upper chamfering formwork 2 and lower chamfering formwork 3, described top template 1, upper chamfering formwork 2 and lower chamfering formwork 3 include steel facing, the edge of described steel facing is provided with and supports floor 7, the support floor 7 of each template offers connecting hole accordingly, make by connector through after the connecting hole on support floor 7 close to each other, can by top template 1, upper chamfering formwork 2 and lower chamfering formwork 3 are linked as the structure of steel internal mold.
In the present embodiment, top template 1, upper chamfering formwork 2 and lower chamfering formwork 3 are by δ 4mmQ235 steel facing composition, support floor 7 and are made by δ 6mmQ235 steel plate, and adopt Q235 steel plate to make, intensity is large, and bend resistance ability is strong, not easily occur swollen mould, run mould phenomenon.
In the present embodiment, the steel facing that described support floor 7 is corresponding with it is vertical to be arranged.
In the present embodiment, described connector is for hooking bolt 4, and the present embodiment adopts M12 to hook bolt.
In the present embodiment, also comprise a reinforcing keel 6 be located in steel internal mold, described reinforcing keel 6 are shaped steel and adapt with the shape of steel internal mold, and the present embodiment is reinforced keel 6 and adopted 8# channel-section steel.The shape being arranged on reinforcing keel in steel internal mold and steel internal mold adapts, and while increasing steel form rigidity, can not disturb the space of form removal; Adopt hook bolt top template, upper chamfering formwork, lower chamfering formwork and reinforcing keel to be coupled together, be connected firmly and remove conveniently.
The construction method of this detachable steel internal mold, comprises the following steps:
1) detachable steel internal mold design: design, to meet user demand according to the physical dimension of beam body and the stressed structure to steel internal mold and rigidity;
2) detachable steel internal mold design and assembly: first carry out lower chamfering formwork 3 and locate, install chamfering formwork 2 and top template 1 after having located successively, connect by hooking bolt 4 and couple together with reinforcing keel 6 between each template;
3) detachable steel internal mold is installed and is reinforced: after steel internal mold has been assembled, and uses mobile crane by the lifting of steel internal mold merogenesis on beam body baseplate reinforcing bar, and positions steel internal mold;
4) concreting: first build the concrete bottom steel internal mold, treats that lower concrete has the concrete of some strength after-pouring belly template and top template position; Because this detachable steel internal mold bottom is without base plate, poker vibrator after bottom concreting in lifts to internal mold, can be used to vibrate lower concrete, solve the difficult problem that small bore cup-shaped case beam underplate concrete base plate difficulty is vibrated;
5) this detachable steel internal mold is removed: dismounting steel internal mold after the concrete strength of beam body is up to standard.
In the present embodiment, step 2) in need each template of cleaning polishing before assembling steel internal mold, ensure that template external surface is clean and tidy without projection.Ensure the structural integrity after beam body construction, ensure its structural strength.
In the present embodiment, step 2) in hook bolt be that M12 hooks bolt.
In the present embodiment, reinforce keel 6 and the support floor 7 of each template in step 3) and adopt and hook bolt 4 and be connected.
In the present embodiment, step 5) central sill body concrete curing age is after 3 days, and concrete strength just carries out the dismounting of steel internal mold after reaching more than 70% of design strength.
This steel internal model structure simple and stable, single construction weight is little, without the need to using machinery during assembling, construct very convenient, after connection completes, do not need in this steel internal mold to arrange any bracing reinforcement system again, increase built-in function space when vibrated concrete and stripping, the technical barrier that effective solution magnetic suspension small bore cup-shaped case beam underplate concrete difficulty is vibrated, is convenient to dismounting steel internal mold, not easily occurs the phenomenon of swollen mould and race mould; And steel internal mold sectional dimension is little, overall or more piece can lifts together when steel internal mold has been assembled rear, effectively shorten construction period, reduce machinery and use duration, install and dismounting all very convenient, greatly reduce construction cost expense.
This steel internal mold construction method, without the need to using special-purpose machinery, is constructed very convenient, can overall or more piece lift together when steel internal mold has been assembled rear, effectively shorten construction period, reduce machinery and use duration, install and dismantle all very convenient, greatly reducing construction cost expense.
Embodiment 2
The steel internal mold of the present embodiment is used for the box girder construction in the middle part of beam body, as shown in Figure 2, because the case depth of beam in the middle part of beam body is higher, so the magnetic suspension small bore case beam detachable steel internal mold of the present embodiment adds middle part connect template 8, be arranged between chamfering formwork 2 and lower chamfering formwork 3, described top template 1, upper chamfering formwork 2 and lower chamfering formwork 3 include steel facing, the edge of described steel facing is provided with and supports floor 7, the support floor 7 of each template offers connecting hole accordingly, make by connector through after the connecting hole on support floor 7 close to each other, can by top template 1, upper chamfering formwork 2 and lower chamfering formwork 3 are linked as the structure of steel internal mold.
In the present embodiment, top template 1, upper chamfering formwork 2 and lower chamfering formwork 3 are by δ 4mmQ235 steel facing composition, support floor 7 and are made by δ 6mmQ235 steel plate, and adopt Q235 steel plate to make, intensity is large, and bend resistance ability is strong, not easily occur swollen mould, run mould phenomenon.
In the present embodiment, the steel facing that described support floor 7 is corresponding with it is vertical to be arranged.
In the present embodiment, described connector is for hooking bolt 4, and the present embodiment adopts M12 to hook bolt.Adopt hook bolt top template, upper chamfering formwork and lower chamfering formwork to be coupled together, be connected firmly and remove conveniently.
In the present embodiment, also comprise a reinforcing keel 6 be located in steel internal mold, described reinforcing keel 6 are shaped steel and adapt with the shape of steel internal mold, and the present embodiment is reinforced keel 6 and adopted 8# channel-section steel.The shape being arranged on reinforcing keel in steel internal mold and steel internal mold adapts, and while increasing steel form rigidity, can not disturb the space of form removal.
The construction method of this detachable steel internal mold, comprises the following steps:
1) detachable steel internal mold design: design, to meet user demand according to the physical dimension of beam body and the stressed structure to steel internal mold and rigidity;
2) detachable steel internal mold design and assembly: first carry out lower chamfering formwork 3 and locate, install chamfering formwork 2 and top template 1 after having located successively, connect by hooking bolt 4 and couple together with reinforcing keel 6 between each template;
3) detachable steel internal mold is installed and is reinforced: after steel internal mold has been assembled, and uses mobile crane by the lifting of steel internal mold merogenesis on beam body baseplate reinforcing bar, and positions steel internal mold;
4) concreting: first build the concrete bottom steel internal mold, treats that lower concrete has the concrete of some strength after-pouring belly template and top template position; Because this detachable steel internal mold bottom is without base plate, poker vibrator after bottom concreting in lifts to internal mold, can be used to vibrate lower concrete, solve the difficult problem that small bore cup-shaped case beam underplate concrete base plate difficulty is vibrated;
5) this detachable steel internal mold is removed: dismounting steel internal mold after the concrete strength of beam body is up to standard.
In the present embodiment, step 2) in need each template of cleaning polishing before assembling steel internal mold, ensure that template external surface is clean and tidy without projection.Ensure the structural integrity after beam body construction, ensure its structural strength.
In the present embodiment, step 2) in hook bolt 4 be that M12 hooks bolt.
In the present embodiment, reinforce keel 6 and the support floor 7 of each template in step 3) and adopt and hook bolt 4 and be connected.
In the present embodiment, step 5) central sill body concrete curing age is after 3 days, and concrete strength just carries out the dismounting of steel internal mold after reaching more than 70% of design strength.
This steel internal model structure simple and stable, single construction weight is little, without the need to using machinery during assembling, construct very convenient, after connection completes, do not need in this steel internal mold to arrange any bracing reinforcement system again, increase built-in function space when vibrated concrete and stripping, the technical barrier that effective solution magnetic suspension small bore cup-shaped case beam underplate concrete difficulty is vibrated, is convenient to dismounting steel internal mold, not easily occurs the phenomenon of swollen mould and race mould; And steel internal mold sectional dimension is little, overall or more piece can lifts together when steel internal mold has been assembled rear, effectively shorten construction period, reduce machinery and use duration, install and dismounting all very convenient, greatly reduce construction cost expense.
This steel internal mold construction method, without the need to using special-purpose machinery, is constructed very convenient, can overall or more piece lift together when steel internal mold has been assembled rear, effectively shorten construction period, reduce machinery and use duration, install and dismantle all very convenient, greatly reducing construction cost expense.
Claims (10)
1. detachable steel internal mold, it is characterized in that, comprise the top template connected successively, upper chamfering formwork and lower chamfering formwork, described top template, upper chamfering formwork and lower chamfering formwork include steel facing, the edge of described steel facing is provided with support floor, the support floor of each template offers connecting hole accordingly, after making to pass the connecting hole on support floor close to each other by connector, top template, upper chamfering formwork and lower chamfering formwork can be linked as the steel internal model structure that there is opening lower end.
2. detachable steel internal mold according to claim 1, is characterized in that, the steel facing that described support floor is corresponding with it is vertical to be arranged.
3. detachable steel internal mold according to claim 2, is characterized in that, described connector is for hooking bolt.
4. according to the detachable steel internal mold one of claim 1-3 Suo Shu, it is characterized in that, also comprise a reinforcing keel be located in steel internal mold, described reinforcing keel are that the cross sectional shape of shaped steel and steel internal mold adapts.
5. detachable steel internal mold according to claim 4, is characterized in that, is provided with middle part and connects template between described upper chamfering formwork and lower chamfering formwork, and described middle part connects template and comprises steel facing and be connected to the support floor on steel facing.
6. a construction method for detachable steel internal mold, is characterized in that, the detachable steel internal mold of such as one of claim 1-5 is used for the construction of beam body beam case, comprises the following steps:
1) detachable steel internal mold design: design, to meet user demand according to the physical dimension of beam body and the stressed structure to steel internal mold and rigidity;
2) detachable steel internal mold design and assembly: first carry out lower chamfering formwork location, install chamfering formwork and top template successively after having located, are tied by hook between each template and connect and couple together with reinforcing keel;
3) detachable steel internal mold is installed and is reinforced: after steel internal mold has been assembled, and uses mobile crane by the lifting of steel internal mold merogenesis on beam body baseplate reinforcing bar, and positions steel internal mold;
4) concreting: first build the concrete bottom steel internal mold, treats that lower concrete has the concrete of some strength after-pouring belly template and top template position;
5) this detachable steel internal mold is removed: dismounting steel internal mold after the concrete strength of beam body is up to standard.
7. the construction method of detachable steel internal mold according to claim 6, is characterized in that, step 2) in need each template of cleaning polishing before assembling steel internal mold, ensure that template external surface is clean and tidy without projection.
8. the construction method of detachable steel internal mold according to claim 7, is characterized in that, step 2) in hook bolt be M12 hook bolt.
9. the construction method of detachable steel internal mold according to claim 8, is characterized in that, the support floor reinforcing keel and each template in step 3) adopts hook to tie and connects.
10. the construction method of detachable steel internal mold according to claim 9, is characterized in that, step 5) central sill body concrete curing age is after 3 days, and concrete strength just carries out the dismounting of steel internal mold after reaching more than 70% of design strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511015047.6A CN105568861A (en) | 2015-12-31 | 2015-12-31 | Easy-disassemble type steel internal mould and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511015047.6A CN105568861A (en) | 2015-12-31 | 2015-12-31 | Easy-disassemble type steel internal mould and construction method thereof |
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| CN105568861A true CN105568861A (en) | 2016-05-11 |
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Cited By (2)
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| CN114571208A (en) * | 2022-03-29 | 2022-06-03 | 河北广通路桥集团有限公司 | Automatic dismounting method for concrete pouring template |
| CN114683395A (en) * | 2022-04-18 | 2022-07-01 | 兰州理工大学 | Modular circular PC well chamber prefabricated template and construction assembling and disassembling method |
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Application publication date: 20160511 |