CN114592690A - Construction device and construction method for compressed pouring of reinforced concrete beams and columns - Google Patents
Construction device and construction method for compressed pouring of reinforced concrete beams and columns Download PDFInfo
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- CN114592690A CN114592690A CN202210361057.9A CN202210361057A CN114592690A CN 114592690 A CN114592690 A CN 114592690A CN 202210361057 A CN202210361057 A CN 202210361057A CN 114592690 A CN114592690 A CN 114592690A
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- 238000010276 construction Methods 0.000 title claims abstract description 52
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 29
- 239000004567 concrete Substances 0.000 claims abstract description 116
- 230000006835 compression Effects 0.000 claims abstract description 50
- 238000007906 compression Methods 0.000 claims abstract description 50
- 239000000725 suspension Substances 0.000 claims abstract description 48
- 238000003825 pressing Methods 0.000 claims description 111
- 238000000034 method Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 abstract description 58
- 239000003351 stiffener Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000001680 brushing effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000012669 compression test Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/04—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
- E04G21/063—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools
- E04G21/065—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools acting upon the shuttering
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/246—Safety or protective measures preventing damage to building parts or finishing work during construction specially adapted for curing concrete in situ, e.g. by covering it with protective sheets
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/08—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up
Abstract
The invention discloses a construction device and a construction method for compressed pouring of reinforced concrete beams and columns, wherein the construction device for compressed pouring of reinforced concrete beams and columns comprises the following steps: the device comprises a ground beam, a suspension beam, a die, a pressurizing device and a connecting rib; the suspension beam is arranged above the ground beam; at least one mould is arranged on the ground beam; one end of at least one pressurizing device is connected to the length direction of the suspension beam in a sliding mode, and the other end of the pressurizing device faces the die; the connecting ribs are arranged in the die. The construction device for the compression casting of the reinforced concrete beam and the column provided by the embodiment can be suitable for compression casting of large concrete members such as the beam and the column, and the manufactured compression casting concrete has better performances in the aspects of durability, compressive strength, elastic modulus and the like compared with the existing concrete.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a construction device and a construction method for compression casting of reinforced concrete beams and columns.
Background
Compared with the traditional concrete pouring mode, the existing compression pouring technology is added with an additional compression procedure after pouring into a mold. Relevant studies have shown that: the porosity and the microcracks of the compressed and cast concrete are less, and the microstructure is more compact. The compression casting can greatly improve the strength, compactness and durability of concrete, and simultaneously, the peak value strain of the concrete compression test piece is greatly reduced because the elastic modulus of the concrete compression test piece is increased compared with that of the concrete compression test piece. The compression casting method can manufacture low-strength concrete with large cement content into high-strength concrete, thereby saving the consumption of cement in concrete materials. At present, the compression casting technology can be applied to the manufacture of experimental members, but the application of the compression casting technology in the manufacture of large concrete members cannot be realized.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a construction device and a construction method for a compression casting reinforced concrete beam and column, and aims to solve the construction problem of a large compression casting concrete structural member.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a construction apparatus for compressive casting of a reinforced concrete beam or column, where the construction apparatus includes:
the suspension beam is arranged above the ground beam;
at least one die is arranged on the ground beam;
one end of at least one pressurizing device is connected to the length direction of the suspension beam in a sliding mode, and the other end of the pressurizing device faces the die;
the connecting rib is arranged in the die.
As a further improved technical scheme, the connecting ribs are arranged in the height direction of the die, the die is arranged in the height direction of the die in a stacked mode, or the die is arranged in the length direction of the ground beam in a spliced mode.
As a further improved technical scheme, the connecting ribs are arranged along the length direction of the die, the die is sequentially spliced along the length direction of the ground beam, or the die is arranged along the length direction of the ground beam at intervals.
As a further improved technical solution, a sliding track is provided on the suspension beam in the length direction, and the pressurizing device includes:
the sliding block is arranged on the sliding track in a sliding mode;
one end of the jack is connected with the sliding block, and the other end of the jack faces the die;
and the pressure head is arranged at the other end of the jack.
As a further improved technical scheme, the die is hollow, and a pressing hole corresponding to the position of the pressing head is formed in the die; the mold comprises: a front pressing plate and a side pressing plate; the front pressing plates are symmetrically connected to the ground beam, the side pressing plates are symmetrically arranged on the ground beam, and the front pressing plates are connected with the adjacent side pressing plates.
As a further improved technical scheme, the construction device further comprises a support frame, wherein a single support frame is erected on the die, and one end, departing from the die, of the support frame is connected to the top of the suspension beam.
As a further improvement, the support frame comprises:
the connecting screw rods are symmetrically arranged on the die;
and the single box beam is connected with the two symmetrically arranged connecting screw rods, and the box beam is connected with the suspension beam.
In a second aspect, an embodiment of the present invention provides a construction method for compressive casting of reinforced concrete beams and columns, where the method includes:
laying the ground beam on the flat ground;
arranging at least one mould on the ground beam;
erecting the suspension beam above the ground beam;
one end of a pressurizing device is connected to the length direction of the suspension beam in a sliding mode, and the other end of the pressurizing device faces the die;
arranging the connecting ribs in the mold;
pouring concrete into the mould, and starting the pressurizing device to compress the concrete.
As a further improved technical solution, wherein the construction method further comprises:
arranging the connecting ribs along the height direction of the die;
and sequentially stacking a plurality of moulds along the height direction of the moulds.
As a further improved technical solution, wherein the construction method further comprises:
arranging the connecting ribs along the length direction of the die;
and sequentially splicing and arranging a plurality of moulds along the length direction of the ground beam, or arranging a plurality of moulds at intervals along the length direction of the ground beam.
The technical scheme adopted by the invention has the following beneficial effects:
the invention provides a construction device for compressing and pouring reinforced concrete beams and columns, which comprises: the device comprises a ground beam, a suspension beam, a die, a pressurizing device and a connecting rib; the suspension beam is arranged above the ground beam; at least one die is arranged on the ground beam; one end of at least one pressurizing device is connected to the length direction of the suspension beam in a sliding mode, and the other end of the pressurizing device faces the die; the connecting rib is arranged in the die. The construction equipment of compression pouring reinforced concrete roof beam, post that this embodiment provided is applicable in compressing to large-scale concrete members such as roof beam and post and pours, has improved the intensity of large-scale concrete member greatly.
Drawings
Fig. 1 is a schematic structural diagram of a construction device for compressive casting of reinforced concrete beams and columns according to the present invention;
fig. 2 is a schematic view of a first section of concrete column pouring of the construction device for compressive pouring of reinforced concrete beams and columns provided by the invention;
FIG. 3 is a schematic diagram of a second section of concrete column casting by the construction apparatus for compressive casting of reinforced concrete beams and columns according to the present invention;
FIG. 4 is a schematic diagram of a first layer of pouring of a construction apparatus for compressive casting of reinforced concrete beams and columns according to the present invention during the casting of concrete columns;
FIG. 5 is a schematic diagram of a second layer of concrete column casting by the construction apparatus for compressive casting of reinforced concrete beams and columns according to the present invention;
FIG. 6 is a schematic view of the whole pouring of a compressed concrete beam and column construction device provided by the present invention during the concrete column pouring;
FIG. 7 is a schematic view of a first embodiment of a compressed cast-in-place apparatus for constructing a beam and column of reinforced concrete according to the present invention during the casting of the beam;
FIG. 8 is a schematic view of a second embodiment of a compressed cast-in-place apparatus for constructing a beam and column of reinforced concrete according to the present invention during the casting of the beam;
FIG. 9 is a schematic view of a third embodiment of a compressed apparatus for casting reinforced concrete beams and columns according to the present invention during casting of concrete beams;
fig. 10 is a flowchart illustrating a construction method for compressive casting of reinforced concrete beams and columns according to a preferred embodiment of the present invention.
Reference numerals are as follows: 100. a ground beam; 200. a suspension beam; 300. a mold; 400. a pressurizing device; 500. connecting ribs; 210. a sliding track; 410. a slider; 420. a jack; 430. a pressure head; 310. a front pressing plate; 320. a side surface pressing plate; 600. a support frame; 610. connecting a screw rod; 620. and (7) a box girder.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It should be further noted that the same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The invention discloses a construction device for compression casting of reinforced concrete beams and columns, and referring to fig. 1, the construction device for compression casting of reinforced concrete beams and columns (hereinafter referred to as construction device) specifically comprises: the ground beam 100, the suspension beam 200, the mould 300, the pressurizing device 400 and the connecting rib 500; in practical use, the ground beam 100 needs to support more parts, and the ground beam 100 can be used to balance the downward pressure applied by the pressurizing device 400 to the mold 300 during operation so as to ensure the smooth proceeding of the compression casting operation, so that the ground beam 100 needs to be disposed on a flat and spacious ground, the suspension beam 200 mainly plays a role of suspending the pressurizing device 400 and is therefore disposed above the ground beam 100, the suspension beam 200 can be disposed above the ground beam 100 through other external supports (not shown in the figure), and optionally, the suspension beam 200 is an i-beam; the molds 300 are hollow and used for supporting the connecting bars 500, and concrete can be poured inside the molds 300, wherein at least one mold 300 is arranged on the ground beam 100, and may be one mold 300 or a plurality of molds 300, which is determined according to the size of the connecting bars 500 and the concrete to be poured; one end of at least one of the pressing devices 400 is slidably connected to the suspension beam 200 in the length direction, and the other end of the pressing device 400 is disposed toward the mold 300, that is, the pressing device 400 can move in the horizontal direction to adapt to concrete compression at different positions, or a plurality of pressing devices 400 can be disposed to compress the mold 300 at different positions. Further, the connecting rib 500 is arranged in the mold 300, the connecting rib 500 is used for connecting concrete, and the compressive strength of the concrete is high, but the tensile strength is low, so that the connecting rib 500 mainly plays a role in tensile strength. Alternatively, the type of the tie bar 500 may be a common steel bar, an FRP (fiber reinforced plastic) bar, or other types of steel bars, and it should be understood that the type of the tie bar is not limited in the present invention, and the type of the tie bar should be selected according to actual requirements.
Specifically, referring to fig. 1, the suspension beam 200 is provided with a sliding rail 210 along the length direction thereof, and the pressurizing device 400 includes: a slide 410, a jack 420, and a ram 430; the sliding block 410 is slidably disposed on the sliding rail 210; one end of the jack 420 is connected with the sliding block 410, the jack is connected with the sliding block, the jack 420 can horizontally slide, the range of compressible pouring concrete is effectively increased, segmented pouring is completed through movement of the jack 420 on the sliding rail 210, construction of the compressible pouring concrete can be completed quickly, effectively and high-quality, and the other end of the jack 420 faces the mold 300; the pressing head 430 is arranged at the other end of the jack 420; optionally, the pressing head 430 is rectangular, so as to compact a larger area of concrete when performing a pressing action, the jack 420 is a hydraulic jack 420, and an oil inlet and an oil outlet are formed in the jack 420, so as to connect a high-pressure oil pump (not shown in the figure) and an external oil tank (not shown in the figure), it should be understood that the specific structure of the jack 420 and the connecting pipeline thereof are the prior art, and are not specifically described herein; when it is necessary to perform compression casting, the jack 420 is driven to move downward, and the ram 430 is driven to compress the concrete in the mold 300.
More specifically, referring to fig. 1, the mold 300 is hollow, the entire mold 300 is rectangular, the interior of the mold is used for accommodating concrete and allowing the connecting rib 500 to pass through, and the mold 300 is provided with a pressing hole corresponding to the position of the pressing head 430, the shape of the pressing hole is consistent with the shape of the pressing head 430, and the pressing head 430 is used for passing through the pressing hole to compress the concrete; wherein the mold 300 comprises: a front platen 310 and a side platen 320; the front pressing plates 310 are symmetrically connected to the ground beam 100, the side pressing plates 320 are symmetrically arranged on the ground beam 100, the front pressing plates 310 are connected with the adjacent side pressing plates 320, optionally, the front pressing plates 310 and the side pressing plates 320 are detachably connected with the ground beam 100 respectively, the front pressing plates 310 and the side pressing plates 320 are detachably connected, and installation and replacement of the pressing plates can be facilitated while concrete pouring position accuracy is guaranteed.
As a further scheme, with continued reference to fig. 1, the construction apparatus further includes a support frame 600, a single support frame 600 is disposed on the mold 300, that is, one support frame 600 is disposed on one mold 300, and one end of the support frame 600, which is away from the mold 300, is connected to the top of the suspension beam 200; by providing the support bracket 600, the position between the mold 300 and the suspension beam 200 is accurate, i.e. the pressing means 400 provided on the suspension beam 200 is not misaligned when compressed. Specifically, the supporting frame 600 includes: connecting the screw 610 and the box girder 620; the connecting screws 610 are symmetrically arranged on the die 300, a single box girder 620 is connected with the connecting screws 610 which are symmetrically arranged, and the box girder 620 is connected with the suspension beam 200; optionally, the number of the connecting screws 610 is four, two connecting screws 610 are symmetrically arranged on each side pressing plate 320, the two connecting screws 610 form a group, and the two groups of connecting screws 610 are symmetrically arranged; it should be understood that the number of connecting screws 610 is calculated based on the pressure and the strength of the screws, and thus the specific number is selected based on the actual situation. The top of each set of connecting screws 610 is connected to a box beam 620, by which the box beam 620 is fixed to the top of the suspension beam 200.
The working principle of the construction device for compressive casting of reinforced concrete beams and columns in the embodiment of the invention when the concrete columns and concrete beams are cast is described in detail in combination with a specific use scene as follows:
in an embodiment of pouring a concrete column, the connecting rib 500 is disposed along a height direction of the mold 300, and the plurality of molds 300 are sequentially stacked along the height direction of the mold 300, or sequentially spliced with the plurality of molds 300 along a length direction of the ground beam 100. In practical application, the concrete columns in the large-scale concrete member are all vertical, play a role in supporting, and the compression pouring of the concrete columns can be realized by arranging the connecting ribs 500 along the height direction of the mold 300. Specifically, the concrete column can be divided into three pouring modes according to the structural requirements of the concrete column:
the first embodiment is as follows: referring to fig. 2 and 3, when the length of the concrete column is too high, the compression casting quality can be improved by layer casting, and at this time, a whole layer of mold 300 is set up each time, and after the compression casting is completed and maintained, a second layer of mold 300 is set up. The whole concrete column can be poured by reciprocating in such a way.
Step 1: the ground beam 100 is laid on an open field, and then front and side press plates are prepared according to the size of the concrete column. The front pressing plate and the side pressing plate are respectively aligned with the connecting holes formed in the ground beam 100 and then fixed by bolts. Then the front pressing plate and the side pressing plate are fixed by bolts. When the next layer is erected, the pressing plates on the upper layer are fixed correspondingly to the pressing plates on the corresponding positions of the lower layer by bolts, and then the pressing plates on the same layer are fixed.
Step 2: the connecting screw 610 is fixed to a stiffener of the side press plate by a nut (the stiffener is advantageous for improving the bearing capacity of the mold 300 and for facilitating the connection with the upper pressurizing means 400). And then fixing an I-beam on the two box beams 620 by using a through hole screw, mounting nuts at the upper ends of the screws, penetrating the box beams 620 through the connecting screw 610 and placing the box beams on the nuts, and mounting a nut on the upper part of the connecting screw 610 to fix the box beams 620. After this step is completed, the box girder 620 and the i-beam need to be leveled in all directions.
The sliding rail 210 is connected to the suspension beam 200 by bolts screwed into prefabricated internal threads. The upper part of the jack 420 is connected with the sliding block 410 by bolts (the sliding block 410 can be directly pushed into the sliding track 210), the lower part is connected with the pressure head 430 by bolts, and the middle part is connected with the high-pressure oil pump by an oil inlet and an oil outlet.
And 3, step 3: before pouring concrete, in order to facilitate demolding, the mold 300 is subjected to brushing oil. Then, the connecting ribs 500 are placed, concrete is poured into the mold 300, and the concrete is vibrated and leveled (so as to ensure uniform stress during compression) until the concrete is filled to the designed height. The lifting jack 420 is pushed into the sliding rail 210 through the upper slider 410, and the pressurizing means 400 is adjusted to a proper height to allow the pressing head 430 to contact the concrete, so that the lifting jack 420 can be extended by a maximum distance.
The high pressure oil pump is turned on and operated to extend the jack 420 to compress the concrete. After the load reaches the design pressure, the holding pressure can be selected for a period of time or the pressure can be released immediately as required.
And 4, step 4: after the pressurization is completed, the lower ram 430 is removed from the jack 420, and then the jack 420 is pushed out of the slide rail 210, and the upper slider 410 is removed from the jack 420. The nuts on the top of the box girder 620 are removed and the box girder 620 and the devices attached to the box girder 620 are lifted out of the screws. In turn, the suspension beam 200 is removed from the sliding rail 210 and the suspension beam 200 is removed from the box girder 620. At this time, the screw may also be removed, and all the pressurizing devices 400 are oiled and maintained together.
And 5: after concrete curing is completed, the bolts between the front pressing plate and the side pressing plate and the bolts between the side pressing plate and the lower pressing plate (the ground beam 100) are firstly removed, and the side pressing plate is removed. And then the bolts of the front pressing plate and the ground beam 100 or the lower pressing plate are removed, and the front pressing plate is removed.
And after the first layer is poured, the height of the mold 300 and the height of the pressurizing device 400 are increased, the hooping bundling of the concrete of the next layer is completed, and the steps 1-5 are repeated to finish the layered pouring. After the mold 300 is removed, oil coating and maintenance are carried out completely.
Example two: referring to fig. 4 and 5, when the area of the concrete column is too large, the compression casting time can be reduced by using sectional casting. And setting up a section of the mold 300 each time, and setting up a second section of the mold 300 after the compression pouring is finished. The whole concrete column can be poured by reciprocating in this way.
Step 1: the ground beam 100 is laid on an open field, and then appropriate front and side pressing plates are prepared according to the size of the concrete column. The front pressing plate and the side pressing plate are respectively aligned with the connecting holes formed in the ground beam 100 and then fixed by bolts. And the front surface pressing plate and the side surface pressing plate on the same surface are fixed by bolts.
Step 2: the connecting screw 610 is fixed to the stiffener of the side press plate by a nut. And then fixing an I-beam on the two box beams 620 by using a through hole screw, mounting nuts at the upper ends of the screws, penetrating the box beams 620 through the connecting screw 610 and placing the box beams on the nuts, and mounting a nut on the upper part of the connecting screw 610 to fix the box beams 620. After this step is completed, the box girder 620 and the i-beam need to be leveled in all directions.
The sliding rail 210 is connected with the suspension beam 200 by screwing a bolt into a prefabricated internal thread, and the upper part of the jack 420 is connected with the sliding block 410 by using the bolt (the sliding block 410 can be directly pushed into the sliding rail 210), so that the jack 420 can freely move in the range of the sliding rail 210, and the compressible range is greatly improved after the compression device is assembled every time. The lower part is also connected with the pressure head 430 by bolts, and the middle part is connected with the high-pressure oil pump through an oil inlet and an oil outlet.
And step 3: before concrete is poured, in order to facilitate demolding, the mold 300 is subjected to oil brushing treatment. And then the connecting ribs 500 are placed, the concrete is poured into the mold 300, and the concrete is vibrated and leveled until the concrete is filled to the designed height. The lifting jack 420 is pushed into the sliding rail 210 through the upper slider 410, and the pressurizing means 400 is adjusted to a proper height to allow the pressing head 430 to contact the concrete, so that the lifting jack 420 can be extended by a maximum distance.
The high pressure oil pump is turned on and operated to extend the jack 420 to compress the concrete. After the load reaches the design pressure, the holding pressure can be selected for a period of time or the pressure can be released immediately as required. After the casting of the section is completed, the jack 420 is slid to the next compression casting section, and the step is repeated to perform casting.
And 4, step 4: after the pressurization is completed, the lower ram 430 is removed from the jack 420, and then the jack 420 is pushed out of the slide rail 210, and the upper slider 410 is removed from the jack 420. The nuts on the top of the box girder 620 are removed and the box girder 620 and the devices attached to the box girder 620 are lifted out of the screws. In turn, the suspension beam 200 is removed from the sliding rail 210 and the suspension beam 200 is removed from the box girder 620. At this time, the screw may also be removed, and all the pressurizing devices 400 are oiled and maintained together.
And 5: after concrete curing is completed, the bolts of the front pressing plate and the side pressing plate, the bolts of the side pressing plate and the ground beam 100 (lower pressing plate) and the bolts between the side pressing plate and the side pressing plate are removed. And then the bolts between the front pressing plate and the ground beam 100 or the bolts between the lower pressing plate are removed, and the bolts between the front pressing plate and the front pressing plate are removed.
The length and the width of the concrete column are approximately equal, and the length direction can be solved through the sectional pouring. In the width direction, there are two construction methods. Firstly, the length of the pressure head 430 in the width direction of the coagulation column is increased; secondly, after one-time sectional pouring is finished, the mold 300 is moved to the next sectional pouring section, the steps are repeated, pouring is finished, and after the mold 300 is detached, oil coating maintenance is completely carried out.
Example three: referring to fig. 6, in general, a compression casting, that is, a mold 300 for setting up the whole pillar at one time, may be adopted, and after the compression casting and the curing are completed, the whole body is removed.
Step 1: the ground beam 100 is laid on an open field, and then front and side press plates are prepared according to the size of the concrete column. The front pressing plate and the side pressing plate are respectively aligned with the connecting holes formed in the ground beam 100 and then fixed by bolts. If the volume is larger, the front (side) pressing plate on the same surface needs to be fixed. Then the front pressing plate and the side pressing plate are fixed by bolts. When the next layer is erected, the pressing plates on the upper layer are fixed correspondingly to the pressing plates on the corresponding positions of the lower layer by bolts, and then the pressing plates on the same layer are fixed.
Step 2: the connecting screw 610 is fixed to a stiffener of the side press plate by a nut (the stiffener is not only advantageous for improving the bearing capacity of the mold 300, but also convenient for connecting with the upper pressurizing means 400). And fixing an I-shaped beam on the two box beams 620 by using a through hole screw, mounting nuts at the upper ends of the screws, penetrating the box beams 620 through the connecting screw 610 and placing the box beams on the nuts, and mounting a nut on the upper part of the connecting screw 610 to fix the box beams 620. After this step is completed, the box girder 620 and the i-beam need to be leveled in all directions.
The sliding rail 210 is connected with the suspension beam 200 by screwing a bolt into a prefabricated internal thread, and the upper part of the jack 420 is connected with the slider 410 by using a bolt, so that the jack 420 can move freely in the range of the sliding rail 210, and the compressible range is greatly improved after the compression device is assembled every time. The lower part is also connected with the pressure head 430 by bolts, and the middle part is connected with the high-pressure oil pump through an oil inlet and an oil outlet.
And step 3: before concrete is poured, in order to facilitate demolding, the mold 300 is subjected to oil brushing treatment. And then the connecting ribs 500 are placed, the concrete is poured into the mold 300, and the concrete is vibrated and leveled until the concrete is filled to the designed height. The lifting jack 420 is pushed into the sliding rail 210 through the upper slider 410, and the pressurizing means 400 is adjusted to a proper height to allow the pressing head 430 to contact the concrete, so that the lifting jack 420 can be extended by a maximum distance.
The high pressure oil pump is turned on and operated to extend the jack 420 to compress the concrete. After the load reaches the design pressure, the holding pressure can be selected for a period of time or the pressure can be released immediately as required. After the pouring of the section is finished, if sectional pouring or layered pouring requirements exist, the jack 420 is slid to the next compression pouring section, and the step is repeated for pouring.
And 4, step 4: after the pressurization is completed, the lower ram 430 is removed from the jack 420, and then the jack 420 is pushed out of the slide rail 210, and the upper slider 410 is removed from the jack 420. The nuts on the top of the box girder 620 are removed and the box girder 620 and the devices attached to the box girder 620 are lifted out of the screws. In turn, the suspension beam 200 is removed from the sliding rail 210 and the suspension beam 200 is removed from the box girder 620. At this time, the screw may be removed, and all the pressurizing devices 400 are oiled and cured together.
And 5: after concrete curing is completed, the bolts of the front pressing plate and the side pressing plate, and the bolts of the side pressing plate and the ground beam 100 or the lower pressing plate are firstly removed, and the side pressing plate is removed. If the side pressing plate is connected with the side pressing plate, the side pressing plate is also detached. Then the bolts of the front pressing plate and the lower pressing plate (or the ground beam 100) are removed, and the front pressing plate is removed. And if the front pressing plate is connected with the front pressing plate, the front pressing plate is also detached. After the mold 300 is removed, oil coating and maintenance are carried out completely.
In an embodiment of pouring the concrete beam, the connecting rib 500 is disposed along a height direction of the mold 300, and the plurality of molds 300 are sequentially stacked along the height direction of the mold 300, or sequentially spliced with the plurality of molds 300 along a length direction of the ground beam 100. In practical application, concrete beams in a large concrete member are all horizontal, play a role in bearing and connecting, connecting ribs 500 are arranged along the length direction of the mold 300, a plurality of molds 300 are sequentially spliced along the length direction of the ground beam 100, or a plurality of molds 300 are arranged at intervals along the length direction of the ground beam 100; can realize that the compression of concrete beam is pour, it is concrete, can divide into three kinds of modes of pouring according to the structural requirement of concrete beam:
example four: referring to fig. 7, the concrete beam is cast section by section along the sliding direction of the jack 420. After the concrete of the previous unit is poured and compressed, the side press plates 320 are removed, the next unit mold 300 is installed, and the jack 420 is pushed to the next unit by the guide rail to work. Wherein, the multi-segment units are connected with each other and are all connected on the ground beam 100 to balance the pressure on the mold 300 caused by the operation of the jack 420.
Step 1: determining the position of the connecting rib 500, and binding the connecting rib 500; placing a front pressing plate 310 of the device in a connection area corresponding to the ground beam 100 according to a pouring mode, and pre-fixing the front pressing plate by using bolts; the connecting rib 500 is placed between the front pressing plates 310, and the side pressing plates 320 at the left and right sides are erected to fix the position of the connecting rib 500; the connecting screw 610 is connected with the front pressing plate 310 by a nut, and the box girder 620, the I-beam and the sliding guide rail connecting piece are put on the upper part of the connecting screw 610, so that the position of the connecting piece is fixed and adjusted, and the pressing range of the jack 420 subsequently erected on the connecting piece can meet the compression requirement.
Step 2: according to relevant pouring specifications, uniformly mixed concrete is prepared, pounded into an already installed mould 300 device, vibrated and trowelled.
And 3, step 3: erecting a jack 420 and installing a pressure head 430, starting the jack 420 to press down, and pressing the unit concrete to be compact; and then the side pressing plate 320 is removed, the mould 300 of the next unit is installed, the jack 420 is pushed to the next unit by using the guide rail, the second step, the third step and the like are repeated.
Example five: referring to fig. 8, the concrete beam is partitioned and simultaneously compressed and cast. The mold 300 is installed at the partition section in advance, and works simultaneously, and after the compression and pouring of the sections of the mold 300 are completed, the other sections of the mold 300 are installed and work is carried out.
Step 1: the tie bars 500 are erected and the mold 300 equipment is installed on the floor beam 100 in stages (for example, if the entire beam is composed of eight-stage units, the mold 300 equipment of four-stage units is installed in stages).
Step 2: the erection jacks 420, the ram 430 and the compression casting operation are performed simultaneously as described in example four, and the plurality of segments of the mold 300 are operated simultaneously. After several sections of pouring are finished, the side pressing plates 320 between the connected units are removed, the rest sections of the die 300 equipment are installed, and next compression pouring is started.
Example six: referring to fig. 9, all the unit molds 300 are erected in advance, and the whole section of the unit molds is poured at the same time.
Step 1: the connecting ribs 500 are erected, the molds 300 of all the units are simultaneously installed, a plurality of jacks 420 (the number of the jacks is the same as that of the molds 300) are erected on the guide rails, and the pressing heads 430 are installed respectively.
Step 2: and after the preparation is finished, performing concrete pouring and compression work. All the jacks 420 work simultaneously to complete the one-step forming of the whole section of beam structure pouring.
It should be noted that, since the concrete column casting process has been described in detail above, the principle of the concrete beam casting process is similar, and therefore, the concrete beam casting process is only briefly described.
Referring to fig. 10, the present invention further discloses a construction method of a construction apparatus for compressive casting of reinforced concrete beams and columns based on the above construction apparatus, wherein the construction method comprises:
s100, paving the ground beam 100 on a flat ground;
s200, arranging at least one mold 300 on the ground beam 100;
s300, erecting the suspension beam 200 above the ground beam 100;
s400, one end of a pressurizing device 400 is connected to the length direction of the suspension beam 200 in a sliding mode, and the other end of the pressurizing device 400 is arranged towards the die 300;
s500, arranging the connecting ribs 500 in the mold 300;
and S600, pouring concrete into the mold 300, and starting the pressurizing device 400 to compress the concrete.
In the embodiment of the invention, when a concrete column or a concrete beam needs to be poured, the ground beam 100 and the suspension beam 200 are installed, the position of the connecting rib 500 is determined, the connecting rib 500 is bound, the front pressing plate 310 of the device is placed in a connecting area corresponding to the ground beam 100 according to a pouring mode, and pre-fixing is carried out by using bolts; the connecting rib 500 is put between the front and rear side plates, and the side pressing plates 320 at the left and right sides are erected to fix the position of the connecting rib 500; the pressurizing device 400 is arranged on the suspension beam 200, so that the downward pressing range of the pressurizing device 400 can meet the compression requirement; according to relevant pouring specifications, uniformly stirred concrete is prepared, is tamped into an installed mold 300 device, and is vibrated and leveled; the pressurizing device 400 is activated to start pressing down, and the concrete is pressed to be compact.
In some embodiments, the construction method further comprises:
s510, arranging the connecting ribs 500 along the height direction of the mold 300;
s520, sequentially overlapping the plurality of moulds 300 along the height direction of the moulds 300, or sequentially splicing the plurality of moulds 300 along the length direction of the ground beam 100;
specifically, in the embodiment of the present invention, the connecting rib 500 is disposed along the height direction of the mold 300, so that the concrete column can be compressed and cast. Specifically, the concrete column can be divided into three pouring modes according to the structural requirements of the concrete column: firstly, when the length of the concrete column is too high, the compression casting quality can be improved by adopting layered casting, at the moment, a whole layer of mold 300 is set up each time, and after the compression casting is finished and maintained, a second layer of mold 300 is set up. The whole concrete column can be poured by reciprocating in this way; and secondly, when the plane area of the concrete column is too large, the compression casting time can be reduced by adopting sectional casting. And setting up a section of the mold 300 each time, and setting up a second section of the mold 300 after the compression pouring is finished. The whole concrete column can be poured by reciprocating in this way; thirdly, in general, the method can adopt one-time compression casting, namely, the mold 300 for setting up the whole column at one time, and the whole column is removed after the compression casting and the maintenance are completed.
In other embodiments, the construction method further comprises:
s530, arranging the connecting ribs 500 along the length direction of the mold 300;
and S540, sequentially splicing and arranging the plurality of moulds 300 along the length direction of the ground beam 100, or arranging the plurality of moulds 300 at intervals along the length direction of the ground beam 100.
Specifically, in the embodiment of the present invention, the connecting rib 500 is disposed along the length direction of the mold 300, so that the compression casting of the concrete beam can be realized. Specifically, the concrete beam can be divided into three pouring modes according to the structural requirements of the concrete beam: first, the concrete beam is cast section by section in the sliding direction of the pressurizing means 400. After the concrete of the previous unit is poured and compressed, the side press plates 320 are removed, the next unit mold 300 is installed, and the jacks 420 are pushed to the next unit by the guide rails to work. Wherein, the multiple sections of units are connected with each other and are all connected on the ground beam 100 to balance the pressure on the mold 300 caused by the operation of the jack 420; and secondly, carrying out partition and simultaneous compression pouring on the concrete beam. Installing the molds 300 at the partition sections in advance, working at the same time, and installing the molds 300 at other sections and working after the compression and pouring of the molds 300 at several sections are completed; thirdly, all the unit molds 300 are erected in advance, and the simultaneous whole-section casting is performed.
It should be noted that, since the concrete pouring process of the concrete column and the concrete beam has been described in detail by the above construction apparatus, no further description is given.
In summary, the present invention provides a construction apparatus and a construction method for compressive casting of reinforced concrete beams and columns, wherein the construction apparatus for compressive casting of reinforced concrete beams and columns includes: the device comprises a ground beam, a suspension beam, a die, a pressurizing device and a connecting rib; the suspension beam is arranged above the ground beam; at least one mould is arranged on the ground beam; one end of at least one pressurizing device is connected to the length direction of the suspension beam in a sliding mode, and the other end of the pressurizing device faces the die; the connecting ribs are arranged in the die. The construction device for the compression casting of the reinforced concrete beam and the column provided by the embodiment can be suitable for compression casting of large concrete members such as the beam and the column, and the manufactured compression casting concrete has better performances in the aspects of durability, compressive strength, elastic modulus and the like compared with the existing concrete.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
Claims (10)
1. The utility model provides a construction equipment of compression concreting roof beam, post which characterized in that, construction equipment includes:
the suspension beam is arranged above the ground beam;
at least one die is arranged on the ground beam;
one end of at least one pressurizing device is connected to the length direction of the suspension beam in a sliding mode, and the other end of the pressurizing device faces the die;
the connecting rib is arranged in the die.
2. The apparatus of claim 1, wherein the connecting bar is disposed along a height direction of the molds, and the molds are sequentially stacked along the height direction of the molds, or sequentially spliced with the molds along a length direction of the ground beam.
3. The apparatus of claim 1, wherein the connecting bar is disposed along a longitudinal direction of the mold, the plurality of molds are sequentially assembled along the longitudinal direction of the ground beam, or the plurality of molds are spaced apart from each other along the longitudinal direction of the ground beam.
4. The apparatus for constructing a beam or column of compressive concreting as claimed in claim 1, wherein the suspension beam has a sliding rail in a length direction thereof, and the pressurizing means comprises:
the sliding block is arranged on the sliding track in a sliding mode;
one end of the jack is connected with the sliding block, and the other end of the jack faces the die;
and the pressure head is arranged at the other end of the jack.
5. The construction device for compressing and pouring the reinforced concrete beam and column according to claim 4, wherein the mold is hollow, and a pressing hole corresponding to the position of the pressing head is formed in the mold; the mold comprises: a front pressing plate and a side pressing plate; the front pressing plates are symmetrically connected to the ground beam, the side pressing plates are symmetrically arranged on the ground beam, and the front pressing plates are connected with the adjacent side pressing plates.
6. The apparatus of claim 1, further comprising a support frame, wherein a single support frame is mounted on the mold, and an end of the support frame facing away from the mold is connected to the top of the suspension beam.
7. The apparatus of claim 6, wherein the support frame comprises:
the connecting screw rods are symmetrically arranged on the die;
and the single box beam is connected with the two symmetrically arranged connecting screw rods, and the box beam is connected with the suspension beam.
8. A method of constructing a compressive cast-in-place reinforced concrete beam or column construction apparatus as claimed in any one of claims 1 to 7, comprising:
laying the ground beam on the flat ground;
arranging at least one mould on the ground beam;
erecting the suspension beam above the ground beam;
one end of a pressurizing device is connected to the length direction of the suspension beam in a sliding mode, and the other end of the pressurizing device faces the die;
arranging the connecting ribs in the mold;
pouring concrete into the mould, and starting the pressurizing device to compress the concrete.
9. The construction method according to claim 8, further comprising:
arranging the connecting ribs along the height direction of the die;
and sequentially superposing a plurality of moulds along the height direction of the moulds or sequentially splicing a plurality of moulds along the length direction of the ground beam.
10. The construction method according to claim 8, further comprising:
arranging the connecting ribs along the length direction of the die;
and sequentially splicing a plurality of moulds along the length direction of the ground beam, or arranging a plurality of moulds at intervals along the length direction of the ground beam.
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| CN202210361057.9A CN114592690A (en) | 2022-04-07 | 2022-04-07 | Construction device and construction method for compressed pouring of reinforced concrete beams and columns |
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| CN202210361057.9A CN114592690A (en) | 2022-04-07 | 2022-04-07 | Construction device and construction method for compressed pouring of reinforced concrete beams and columns |
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