CN114592690B - Construction device and construction method for compression pouring reinforced concrete beam and column - Google Patents
Construction device and construction method for compression pouring reinforced concrete beam and column Download PDFInfo
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- CN114592690B CN114592690B CN202210361057.9A CN202210361057A CN114592690B CN 114592690 B CN114592690 B CN 114592690B CN 202210361057 A CN202210361057 A CN 202210361057A CN 114592690 B CN114592690 B CN 114592690B
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- 238000007906 compression Methods 0.000 title claims abstract description 79
- 230000006835 compression Effects 0.000 title claims abstract description 78
- 238000010276 construction Methods 0.000 title claims abstract description 61
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 35
- 239000004567 concrete Substances 0.000 claims abstract description 112
- 238000005266 casting Methods 0.000 claims abstract description 94
- 239000000725 suspension Substances 0.000 claims abstract description 46
- 238000003825 pressing Methods 0.000 claims description 93
- 238000010586 diagram Methods 0.000 description 8
- 239000003351 stiffener Substances 0.000 description 5
- 230000001680 brushing effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000012669 compression test Methods 0.000 description 2
- 239000003733 fiber-reinforced composite 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
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000011161 development Methods 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
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
-
- 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
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a construction device and a construction method for compression casting reinforced concrete beams and columns, wherein the construction device for compression casting reinforced concrete beams and columns comprises the following components: the device comprises a ground beam, a suspension beam, a die, a pressurizing device and connecting ribs; 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 with the length direction of the suspension beam in a sliding way, and the other end of the pressurizing device is arranged towards the die; the connecting ribs are arranged in the die. The construction device for compression casting reinforced concrete beams and columns provided by the embodiment is applicable to compression casting of large-sized concrete members such as beams and columns, and the manufactured compression casting concrete has better performance 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 reinforced concrete beams and columns.
Background
Compared with the traditional concrete pouring mode, the existing compression pouring technology is to add an extra compression process after pouring into a mould. Related studies indicate that: the porosity and microcracks of the compression cast concrete are less, and the microstructure is more compact. The compressive pouring can greatly improve the strength, compactness and durability of the concrete, and meanwhile, the peak 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 unpressurized test piece. The compression pouring method can be used for manufacturing low-strength concrete with larger water cement into high-strength concrete, so that the consumption of cement in concrete materials is saved. At present, the compression casting technology can be applied to the manufacture of experimental components, but the application of the compression casting technology in the manufacture of large-scale concrete components cannot be realized.
Accordingly, the prior art is still in need of improvement and development.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a construction device and a construction method for compression casting reinforced concrete beams and columns, which aim to solve the construction problem of large-scale compression casting concrete structural members.
In order to achieve the above purpose, the invention adopts the following technical scheme:
In a first aspect, an embodiment of the present invention provides a construction apparatus for compression casting reinforced concrete beams and columns, where the construction apparatus includes:
the ground beam and the suspension beam are arranged above the ground beam;
the mould is arranged on the ground beam;
One end of at least one pressurizing device is connected with the length direction of the suspension beam in a sliding way, and the other end of the pressurizing device is arranged towards the die;
And the connecting ribs are arranged in the die.
As a further improvement technical scheme, the connecting ribs are arranged along the height direction of the die, and a plurality of dies are sequentially overlapped along the height direction of the die, or are sequentially spliced with a plurality of dies along the length direction of the ground beam.
As a further improvement technical scheme, the connecting ribs are arranged along the length direction of the die, a plurality of dies are spliced in sequence along the length direction of the ground beam, or a plurality of dies are arranged at intervals along the length direction of the ground beam.
As a further improvement, the suspension beam is provided with a sliding rail in a longitudinal direction, and the pressurizing device includes:
The sliding block is arranged on the sliding rail in a sliding manner;
one end of the jack is connected with the sliding block, and the other end of the jack is arranged towards the die;
the pressure head is arranged at the other end of the jack.
As a further improvement technical scheme, the die is hollow, and a pressing hole corresponding to the pressing head is formed in the die; the mold comprises: a front platen and a side platen; 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 improvement technical scheme, construction device still includes the support frame, singly the support frame is located on the mould, the support frame deviate from the one end of mould connect in the top of hanging the roof beam.
As a further improvement, the support frame includes:
the connecting screws are symmetrically arranged on the die;
the box girder is connected with the connecting screws which are symmetrically arranged, and the box girder is connected with the suspension girder.
In a second aspect, an embodiment of the present invention provides a construction method for compression casting reinforced concrete beams and columns, where the construction method includes:
paving the ground beam on a flat ground;
Disposing at least one mold on the ground beam;
Erecting a suspension beam above the ground beam;
one end of the pressurizing device is connected with the length direction of the suspension beam in a sliding way, and the other end of the pressurizing device is arranged towards the die;
arranging the connecting ribs in a die;
Pouring the concrete into the mould, and starting the pressurizing device to compress the concrete.
As a further improved technical scheme, the construction method further comprises:
arranging the connecting ribs along the height direction of the die;
and sequentially superposing the plurality of dies along the height direction of the dies.
As a further improved technical scheme, the construction method further comprises:
Arranging the connecting ribs along the length direction of the die;
The plurality of dies are sequentially spliced along the length direction of the ground beam, or the plurality of dies are arranged at intervals along the length direction of the ground beam.
The technical scheme adopted by the invention has the following beneficial effects:
The construction device for compression pouring reinforced concrete beams and columns provided by the invention comprises the following components: the device comprises a ground beam, a suspension beam, a die, a pressurizing device and connecting ribs; 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 with the length direction of the suspension beam in a sliding way, and the other end of the pressurizing device is arranged towards the die; the connecting ribs are arranged in the die. The construction device for compression casting reinforced concrete beams and columns provided by the embodiment is applicable to compression casting of large-sized concrete members such as beams and columns, and the strength of the large-sized concrete members is greatly improved.
Drawings
Fig. 1 is a schematic structural view of a construction device for compression casting reinforced concrete beams and columns provided by the invention;
Fig. 2 is a first section of a casting schematic diagram of a construction device for compression casting reinforced concrete beams and columns, which is provided by the invention, when a concrete column is cast;
fig. 3 is a second section of casting schematic diagram of the construction device for compression casting reinforced concrete beams and columns when casting concrete columns;
Fig. 4 is a first layer of casting schematic diagram of the construction device for compression casting reinforced concrete beams and columns when casting concrete columns;
fig. 5 is a second layer of casting schematic diagram of the construction device for compression casting reinforced concrete beams and columns when casting concrete columns;
Fig. 6 is an overall casting schematic diagram of a construction device for compression casting reinforced concrete beams and columns when casting concrete columns;
fig. 7 is a first casting schematic diagram of a construction device for compression casting reinforced concrete beams and columns when casting concrete beams;
fig. 8 is a second casting schematic diagram of the construction device for compression casting reinforced concrete beams and columns when casting the reinforced concrete beams;
Fig. 9 is a third casting schematic diagram of a construction device for compression casting reinforced concrete beams and columns when casting the reinforced concrete beams;
Fig. 10 is a flowchart of a construction method for compression pouring reinforced concrete beams and columns according to a preferred embodiment of the present invention.
Reference numerals: 100. a ground beam; 200. a suspension beam; 300. a mold; 400. a pressurizing device; 500. a connecting rib; 210. a sliding rail; 410. a slide block; 420. a jack; 430. a pressure head; 310. a front pressure plate; 320. a side pressure plate; 600. a support frame; 610. a connecting screw; 620. and a box girder.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and more specific, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" 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 also be noted that in the drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth 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 indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus, terms describing the positional relationship in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The invention discloses a construction device for compression pouring reinforced concrete beams and columns, referring to fig. 1, the construction device for compression pouring reinforced concrete beams and columns (hereinafter referred to as construction device for short) specifically comprises: ground beam 100, suspension beam 200, mold 300, pressurizing device 400, and connecting rib 500; in practical use, the ground beam 100 needs to support more components, and the ground beam 100 can be used to balance the downward pressure applied by the mold 300 by the pressurizing device 400 during operation, so as to ensure smooth compression pouring operation, therefore, the ground beam 100 needs to be disposed on an open and flat ground, the suspension beam 200 mainly plays a role of suspending the pressurizing device 400, and is disposed above the ground beam 100, and the suspension beam 200 can be disposed above the ground beam 100 by other external brackets (not shown in the figure), and optionally, the suspension beam 200 is an i-beam; the mold 300 is in a hollow state and is used for supporting the connecting rib 500, and concrete can be poured in the mold, wherein at least one mold 300 is arranged on the ground beam 100, and the mold 300 can be one mold 300 or a plurality of molds 300, and the concrete is specifically determined according to the sizes of the connecting rib 500 and the concrete to be poured; one end of at least one pressurizing device 400 is slidably connected to the length direction of the suspension beam 200, and the other end of the pressurizing device 400 is disposed toward the mold 300, that is, the pressurizing device 400 can move horizontally to adapt to the concrete compression at different positions, or a plurality of pressurizing devices 400 can be disposed to compress the mold 300 at different positions at the same time. Further, the connecting rib 500 is disposed in the mold 300, and the connecting rib 500 is used for connecting concrete, and the concrete has high compressive strength but low tensile strength, so that the connecting rib 500 mainly plays a role in tensile strength. Alternatively, the types of the connection bars 500 may be ordinary steel bars, FRP (fiber reinforced composite) bars, and other types of steel bars, and it should be understood that the types of the connection bars are not limited in the present invention, and specifically should be selected according to actual requirements.
Specifically, with continued reference to fig. 1, the suspension beam 200 is provided with a sliding rail 210 along a length direction, and the pressurizing device 400 includes: a slider 410, a jack 420, and a ram 430; wherein the slider 410 is slidably disposed on the sliding track 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 slide horizontally, the range of compressible casting concrete is effectively increased, sectional casting is completed through the movement of the jack 420 on the sliding track 210, the construction of the compressible casting concrete can be completed quickly, effectively and high-quality, and the other end of the jack 420 is arranged towards the die 300; the pressure head 430 is arranged on the other end of the jack 420; optionally, the pressure head 430 is rectangular, so as to compact a larger area of concrete during the pressing action, the jack 420 is a hydraulic jack 420, and the jack 420 is provided with an oil inlet and an oil outlet for connecting a high-pressure oil pump (not shown in the figure) and an external oil tank (not shown in the figure), and it should be understood that the specific structure of the jack 420 and the connecting pipeline thereof are all the prior art, and will not be described in detail herein; when compression casting is required, the jack 420 is driven to move downwards, so that the pressure head 430 is driven to compress the concrete in the mould 300.
More specifically, referring to fig. 1, the mold 300 is hollow, the entire mold 300 is rectangular, the interior is used for accommodating concrete and allowing the connection 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 that of the pressing head 430, and the pressing hole is used for allowing the pressing head 430 to pass through to compress the concrete; wherein the mold 300 comprises: a front platen 310 and a side platen 320; the front pressing plate 310 is symmetrically connected to the ground beam 100, the side pressing plates 320 are symmetrically arranged on the ground beam 100, the front pressing plate 310 is connected with the adjacent side pressing plates 320, and optionally, the front pressing plate 310 and the side pressing plates 320 are respectively detachably connected with the ground beam 100, the front pressing plate 310 and the side pressing plates 320 are detachably connected, so that the concrete pouring position is accurate, and meanwhile, the installation and the replacement between the pressing plates can be facilitated.
As a further solution, please continue to refer to fig. 1, the construction device further includes a supporting frame 600, where a single supporting frame 600 is disposed on the mold 300, that is, one supporting frame 600 is disposed on one mold 300, and one end of the supporting frame 600 facing away from the mold 300 is connected to the top of the suspension beam 200; by providing the support frame 600, the position between the mold 300 and the suspension beam 200 is made accurate, i.e., the pressurizing device 400 provided on the suspension beam 200 is not dislocated when compressed. Specifically, the support frame 600 includes: a connecting screw 610 and a box girder 620; the plurality of connecting screws 610 are symmetrically arranged on the die 300, a single box girder 620 is connected with the two symmetrically arranged connecting screws 610, and the box girder 620 is connected with the suspension girder 200; optionally, the number of the connecting screws 610 is four, two connecting screws 610 are symmetrically arranged on each side pressing plate 320, two connecting screws 610 are in a group, and two groups of connecting screws 610 are symmetrically arranged; it should be understood that the number of connecting screws 610 is calculated based on pressure and screw strength, and thus the particular number is selected based on the circumstances. The top of each set of connecting screws 610 is connected to one box girder 620, and is fixed to the top of the suspension girder 200 by the box girder 620.
The working principle of the construction device for compression pouring reinforced concrete beams and columns in the embodiment of the invention when pouring concrete columns and concrete beams is described in detail below with reference to specific use scenes:
In the concrete column pouring embodiment, the connecting ribs 500 are disposed along the height direction of the mold 300, and a plurality of the molds 300 are sequentially stacked along the height direction of the mold 300, or are sequentially spliced with a plurality of the molds 300 along the length direction of the ground beam 100. In practical application, the concrete columns in the large-sized concrete members 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 die 300. Specifically, according to the structural requirement of the concrete column, three pouring modes can be divided:
Embodiment one: referring to fig. 2 and 3, when the length of the concrete column is too high, layered casting may be used to improve the compression casting quality, and at this time, a whole layer of the mold 300 is built each time, and after the compression casting is completed and the curing is performed, a second layer of the mold 300 is built. And the pouring of the whole concrete column can be completed by reciprocating.
Step 1: the girder 100 is laid on the open field, and then the 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 on the ground beam 100 and then fixed by bolts. And then fixing the front pressing plate and the side pressing plate by bolts. When the next layer is erected, bolts are used for fixing all pressing plates of the upper layer corresponding to all pressing plates of the position corresponding to the lower layer, and then all pressing plates of the same layer are fixed.
Step 2: the connecting screw 610 is fixed to the stiffener of the side platen by nuts (the stiffener is advantageous for improving the bearing capacity of the mold 300 and is convenient to connect with the upper pressurizing means 400). And then an I-beam is fixed on the two box beams 620 by using the through hole screws, nuts are arranged at the upper ends of the screws, the box beams 620 penetrate through the connecting screw 610 and are placed on the nuts, and a nut is also arranged at the upper part of the connecting screw 610 to fix the box beams 620. After this step, the box beam 620 and the i-beam need to be leveled in all directions.
The sliding rail 210 is coupled to the suspension beam 200 by bolting into a prefabricated internal thread. 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 rail 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.
Step 3: before casting the concrete, the mold 300 is subjected to oil brushing treatment for convenience of demolding. Then, the connection rib 500 is placed, concrete is poured into the mold 300, and the concrete is vibrated and smoothed (to ensure uniform stress during compression) until the concrete is filled to a designed height. Jack 420 is pushed into slide rail 210 by upper slider 410 and pressurizing device 400 is adjusted to a proper height to bring ram 430 into contact with the concrete so that jack 420 can be extended a maximum distance.
The high-pressure oil pump is turned on, and the high-pressure oil pump is operated to extend the jack 420 to compress the concrete. After the loading reaches the design pressure, the pressure can be kept for a period of time or released immediately according to the requirement.
Step 4: after pressurization is complete, lower ram 430 is removed from jack 420, jack 420 is then pushed out of slide rail 210, and upper slider 410 is removed from jack 420. The nuts on the upper portion of the box girder 620 are removed, and the box girder 620 and the devices connected to the box girder 620 are lifted out of the screw. The suspension beam 200 is removed from the sliding rail 210 in turn, and the suspension beam 200 is removed from the box beam 620. At this time, the screw is also removable, and all the pressurizing devices 400 are oiled and cured together.
Step 5: after the concrete curing is completed, the bolts between the front side 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 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 laminated plate are removed, and the front pressing plate is removed.
After one layer of casting is completed, the height of the die 300 and the pressurizing device 400 is raised, hooping of the next layer of concrete is completed, and the steps 1-5 are repeated to complete layered casting. And (5) after the mold 300 is removed, oiling and curing are performed.
Embodiment two: referring to fig. 4 and 5 together, 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 die 300 each time, and setting up a second section of die 300 after compression pouring is completed. And the pouring of the whole concrete column can be completed by reciprocating.
Step 1: the floor beams 100 are laid on the open field, and then appropriate amount of 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 on the ground beam 100 and then fixed by bolts. The front (side) pressing plate on the same surface is fixed, and the front pressing plate and the side pressing plate are fixed by bolts.
Step 2: the connecting screw 610 is fixed to the stiffener of the side platen by nuts. And then an I-beam is fixed on the two box beams 620 by using the through hole screws, nuts are arranged at the upper ends of the screws, the box beams 620 penetrate through the connecting screw 610 and are placed on the nuts, and a nut is also arranged at the upper part of the connecting screw 610 to fix the box beams 620. After this step, the box beam 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 the bolt into the 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 move randomly within the range of the sliding rail 210, and the compressible range is greatly improved after the compression device is assembled each time. The lower part is also connected with the pressure head 430 by bolts, and the middle part is connected with a high-pressure oil pump by an oil inlet and an oil outlet.
Step 3: before casting the concrete, the mold 300 is subjected to oil brushing treatment for convenience of demolding. Then, the connection rib 500 is placed, concrete is poured into the mold 300, and the concrete is vibrated and smoothed until the concrete is filled to a designed height. Jack 420 is pushed into slide rail 210 by upper slider 410 and pressurizing device 400 is adjusted to a proper height to bring ram 430 into contact with the concrete so that jack 420 can be extended a maximum distance.
The high-pressure oil pump is turned on, and the high-pressure oil pump is operated to extend the jack 420 to compress the concrete. After the loading reaches the design pressure, the pressure can be kept for a period of time or released immediately according to the requirement. After the casting of the section is completed, the jack 420 is slid to the next compression casting section, and the casting is carried out by repeating the steps.
Step 4: after pressurization is complete, lower ram 430 is removed from jack 420, jack 420 is then pushed out of slide rail 210, and upper slider 410 is removed from jack 420. The nuts on the upper portion of the box girder 620 are removed, and the box girder 620 and the devices connected to the box girder 620 are lifted out of the screw. The suspension beam 200 is removed from the sliding rail 210 in turn, and the suspension beam 200 is removed from the box beam 620. At this time, the screw is also removable, and all the pressurizing devices 400 are oiled and cured together.
Step 5: after the concrete curing is completed, the bolts of the front side pressing plate and the side pressing plate, the bolts of the side pressing plate and the ground beam 100 (lower laminated plate) and the bolts between the side pressing plate and the side pressing plate are removed. And then the bolts of the front pressing plate and the ground beam 100 or the lower laminated 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 by the sectional pouring. In the width direction, there are two methods of construction. Firstly, the length of the pressure head 430 in the width direction of the coagulation column is increased; and secondly, after one-time sectional pouring is completed, moving the die 300 to the next sectional pouring section, repeating the steps, completing pouring, and completely oiling and curing after the die 300 is removed.
Embodiment III: referring to fig. 6, in general, one compression casting may be adopted, that is, the mold 300 for the whole column is erected at one time, and after the compression casting and curing are completed, the whole column is removed.
Step 1: the girder 100 is laid on the open field, and then the 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 on the ground beam 100 and then fixed by bolts. If the volume is large, the same face of the front (side) face pressing plate needs to be fixed. And then fixing the front pressing plate and the side pressing plate by bolts. When the next layer is erected, bolts are used for fixing all pressing plates of the upper layer corresponding to all pressing plates of the position corresponding to the lower layer, and then all pressing plates of the same layer are fixed.
Step 2: the connecting screw 610 is fixed to the stiffener of the side platen by nuts (the stiffener is advantageous for improving the bearing capacity of the mold 300 and is convenient to connect with the upper pressurizing means 400). And then an I-beam is fixed on the two box beams 620 by using the through hole screws, nuts are arranged at the upper ends of the screws, the box beams 620 penetrate through the connecting screw 610 and are placed on the nuts, and a nut is also arranged at the upper part of the connecting screw 610 to fix the box beams 620. After this step, the box beam 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 the bolt into the prefabricated internal thread, and the upper portion of the jack 420 is connected with the slider 410 by using the bolt, so that the jack 420 can move at will within the range of the sliding rail 210, and the compressible range is greatly improved after the compression device is assembled each time. The lower part is also connected with the pressure head 430 by bolts, and the middle part is connected with a high-pressure oil pump by an oil inlet and an oil outlet.
Step 3: before casting the concrete, the mold 300 is subjected to oil brushing treatment for convenience of demolding. Then, the connection rib 500 is placed, concrete is poured into the mold 300, and the concrete is vibrated and smoothed until the concrete is filled to a designed height. Jack 420 is pushed into slide rail 210 by upper slider 410 and pressurizing device 400 is adjusted to a proper height to bring ram 430 into contact with the concrete so that jack 420 can be extended a maximum distance.
The high-pressure oil pump is turned on, and the high-pressure oil pump is operated to extend the jack 420 to compress the concrete. After the loading reaches the design pressure, the pressure can be kept for a period of time or released immediately according to the requirement. After the casting of the section is finished, if the requirement of sectional casting or layered casting exists, the jack 420 is slid to the next compression casting section, and the steps are repeated for casting.
Step 4: after pressurization is complete, lower ram 430 is removed from jack 420, jack 420 is then pushed out of slide rail 210, and upper slider 410 is removed from jack 420. The nuts on the upper portion of the box girder 620 are removed, and the box girder 620 and the devices connected to the box girder 620 are lifted out of the screw. The suspension beam 200 is removed from the sliding rail 210 in turn, and the suspension beam 200 is removed from the box beam 620. At this time, the screw is also removable, and all the pressurizing devices 400 are oiled and cured together.
Step 5: after the concrete curing is completed, the bolts of the front side pressing plate and the side pressing plate, and the bolts of the side pressing plate and the ground beam 100 or the lower laminated plate are 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 removed. And 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. If the front pressing plate is connected with the front pressing plate, the front pressing plate is also removed. And (5) after the mold 300 is removed, oiling and curing are performed.
In the embodiment of pouring the concrete beam, the connecting ribs 500 are disposed along the height direction of the mold 300, and a plurality of the molds 300 are sequentially stacked along the height direction of the mold 300, or are sequentially spliced with a plurality of the molds 300 along the length direction of the ground beam 100. In practical application, the concrete beams in the large concrete member are all in a horizontal shape, and play roles in bearing and connecting, the connecting ribs 500 are arranged along the length direction of the die 300, a plurality of the dies 300 are spliced in turn along the length direction of the ground beam 100, or a plurality of the dies 300 are arranged at intervals along the length direction of the ground beam 100; compression pouring of the concrete beam can be achieved, and concrete pouring modes can be divided according to structural requirements of the concrete beam:
Embodiment four: referring to fig. 7, the concrete beam is cast segment by segment along the sliding direction of the jack 420. After the concrete casting and compression of the previous unit are completed, the side pressing plate 320 is removed, the next unit die 300 is installed, and the jack 420 is pushed to the next unit by using the guide rail to perform work. Wherein the sections are connected to each other and to the ground beam 100 to balance the pressure applied to the mold 300 by the jack 420 when in operation.
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 by bolts; connecting ribs 500 are placed between the front pressing plates 310, and side pressing plates 320 on the left side and the right side are erected, so that the positions of the connecting ribs 500 are fixed; the connecting screw 610 is connected with the front pressure plate 310 by a nut, and the connecting pieces of the box girder 620, the I-beam and the sliding guide rail are put into the upper part of the connecting screw 610, so that the positions of the connecting pieces are fixed and adjusted, and the pressing range of the jack 420 erected on the connecting pieces can meet the compression requirement.
Step 2: according to the relevant pouring specifications, uniformly stirred concrete is prepared, and is rammed into the installed mould 300 device, vibrated and smoothed.
Step 3: erecting a jack 420 and installing a pressure head 430, starting the jack 420 to start pressing down, and pressing the unit concrete to be compact; then the side platen 320 is removed, the next unit is mounted to the mold 300, the jack 420 is pushed to the next unit using the guide rail, steps two, three are repeated, and so on.
Fifth embodiment: referring to fig. 8, the concrete beam is subjected to a partition and compression casting. The molds 300 are installed in advance for working simultaneously, and after compression pouring of a plurality of sections of molds 300 is completed, the molds 300 of other sections are installed for working.
Step 1: the connection rib 500 is installed, and the mold 300 is installed on the ground beam 100 in a partition manner (for example, the whole section Liang Re is formed by eight sections of units, and the mold 300 with four sections of units is installed in a partition manner.
Step 2: the erection jack 420, the ram 430 and the compression casting operation are performed simultaneously with the operation of the several molds 300 as described in the fourth embodiment. After the casting of several sections is completed, the side pressing plates 320 between the units are removed, and the rest of the mold 300 equipment is installed, so that the next compression casting is started.
Example six: referring to fig. 9, all unit molds 300 are erected in advance and casting is performed in full section at the same time.
Step 1: the connection bars 500 are installed, the molds 300 of all the units are simultaneously installed, a plurality of jacks 420 (the same number as the units of the molds 300) are installed on the guide rails, and the press heads 430 are installed respectively.
Step 2: and after the preparation is finished, pouring concrete and compressing. All jacks 420 work simultaneously, and one-step molding of pouring of the whole beam structure is completed.
It should be noted that, since the concrete column casting process has been described in detail above, the concrete beam casting process is similar in principle, and thus, only a simple description is made for the concrete beam casting process.
Referring to fig. 10, the invention further discloses a construction method of the construction device for compression casting reinforced concrete beams and columns on the basis of the construction device, which comprises the following steps:
s100, paving the ground beam 100 on a flat ground;
S200, arranging at least one mould 300 on the ground beam 100;
s300, erecting the suspension beam 200 above the ground beam 100;
S400, connecting one end of the pressurizing device 400 to the length direction of the suspension beam 200 in a sliding manner, wherein the other end of the pressurizing device 400 is arranged towards the die 300;
s500, arranging the connecting ribs 500 in the die 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 positions of the connecting ribs 500 are determined, the binding connecting ribs 500 are used for placing the front pressing plate 310 of the device in a connecting area corresponding to the ground beam 100 according to a pouring mode, and pre-fixing is carried out by bolts; connecting ribs 500 are placed between the front side plate and the rear side plate, and side pressing plates 320 on the left side and the right side are erected, so that the positions of the connecting ribs 500 are fixed; the pressurizing device 400 is arranged on the suspension beam 200 so that the pressing range of the pressurizing device 400 can meet the compression requirement; according to relevant pouring specifications, uniformly stirred concrete is prepared, and is mashed into a mounted die 300 device, vibrated and smoothed; the pressurizing means 400 is started to start pressing down to press the concrete to be dense.
In some embodiments, the construction method further comprises:
s510, arranging the connecting ribs 500 along the height direction of the die 300;
S520, sequentially superposing a plurality of dies 300 along the height direction of the dies 300, or sequentially splicing the dies 300 along the length direction of the ground beam 100;
Specifically, in the embodiment of the present invention, the connection rib 500 is disposed along the height direction of the mold 300, so as to implement compression casting of the concrete column. Specifically, according to the structural requirement of the concrete column, three pouring modes can be divided: first, when the length of the concrete column is too high, layered casting can be adopted to improve the compression casting quality, at this time, a whole layer of die 300 is built each time, and after the compression casting is completed and the curing is performed, a second layer of die 300 is built. The pouring of the whole concrete column can be completed by reciprocating in this way; secondly, when the plane area of the concrete column is overlarge, the compression casting time can be reduced by adopting sectional casting. And setting up a section of die 300 each time, and setting up a second section of die 300 after compression pouring is completed. The pouring of the whole concrete column can be completed by reciprocating in this way; thirdly, one-time compression casting can be adopted in general, namely, the mold 300 of the whole column is erected once, and the whole column is removed after compression casting and maintenance are completed.
In other embodiments, the construction method further comprises:
s530, arranging the connecting ribs 500 along the length direction of the die 300;
S540, the plurality of molds 300 are sequentially spliced along the length direction of the ground beam 100, or the plurality of molds 300 are arranged at intervals along the length direction of the ground beam 100.
Specifically, in the embodiment of the present invention, the connection ribs 500 are disposed along the length direction of the mold 300, so as to implement compression casting of the concrete beam. Specifically, according to the structural requirement of the concrete beam, three pouring modes can be divided: first, the concrete beam is cast segment by segment along the sliding direction of the pressurizing device 400. After the concrete casting and compression of the previous unit are completed, the side pressing plate 320 is removed, the next unit die 300 is installed, and the jack 420 is pushed to the next unit by using the guide rail to perform work. Wherein the multi-section units are connected to each other and all connected to the ground beam 100 to balance the pressure of the jack 420 on the mold 300 during operation; secondly, the concrete beam is subjected to section separation and compression casting. The molds 300 are installed in advance at intervals and work simultaneously, and after compression pouring of a plurality of sections of molds 300 is completed, the molds 300 of other sections are installed and work; thirdly, all the unit molds 300 are erected in advance, and casting is performed in whole sections simultaneously.
It should be noted that, since the concrete column and concrete beam concrete pouring process have been described in detail by the above construction apparatus, the details are not repeated.
In summary, the present invention provides a construction device and a construction method for compression casting reinforced concrete beams and columns, wherein the construction device for compression casting reinforced concrete beams and columns comprises: the device comprises a ground beam, a suspension beam, a die, a pressurizing device and connecting ribs; 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 with the length direction of the suspension beam in a sliding way, and the other end of the pressurizing device is arranged towards the die; the connecting ribs are arranged in the die. The construction device for compression casting reinforced concrete beams and columns provided by the embodiment is applicable to compression casting of large-sized concrete members such as beams and columns, and the manufactured compression casting concrete has better performance 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 disclosed embodiments. 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 (7)
1. A construction device for compression casting reinforced concrete beams and columns is characterized in that,
The construction device includes:
the ground beam and the suspension beam are arranged above the ground beam;
the mould is arranged on the ground beam;
One end of at least one pressurizing device is connected with the length direction of the suspension beam in a sliding way, and the other end of the pressurizing device is arranged towards the die;
the connecting ribs are arranged in the die;
the length direction of hanging beam is equipped with the slip track, pressure device includes:
The sliding block is arranged on the sliding rail in a sliding manner;
one end of the jack is connected with the sliding block, and the other end of the jack is arranged towards the die;
The pressure head is arranged at the other end of the jack;
the die is hollow, and a pressing hole corresponding to the pressing head is formed in the die; the mold comprises: a front platen and a side platen; 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;
the construction device further comprises a supporting frame, wherein a single supporting frame is arranged on the die, and one end, deviating from the die, of the supporting frame is connected to the top of the suspension beam.
2. The construction device for compression casting reinforced concrete beams and columns according to claim 1, wherein the connecting ribs are arranged along the height direction of the mould, a plurality of the moulds are sequentially overlapped along the height direction of the mould, or the connecting ribs and the moulds are sequentially spliced along the length direction of the ground beam.
3. The construction device for compression casting reinforced concrete beams and columns according to claim 1, wherein the connecting ribs are arranged along the length direction of the mould, a plurality of moulds are spliced in turn along the length direction of the ground beam, or a plurality of moulds are arranged at intervals along the length direction of the ground beam.
4. The construction device for compression casting reinforced concrete beams and columns according to claim 1, wherein the support frame comprises:
the connecting screws are symmetrically arranged on the die;
the box girder is connected with the connecting screws which are symmetrically arranged, and the box girder is connected with the suspension girder.
5. A construction method using the construction device for compression casting reinforced concrete beams and columns according to any one of claims 1 to 4, comprising:
paving the ground beam on a flat ground;
Disposing at least one mold on the ground beam;
Erecting a suspension beam above the ground beam;
one end of the pressurizing device is connected with the length direction of the suspension beam in a sliding way, and the other end of the pressurizing device is arranged towards the die;
arranging the connecting ribs in a die;
Pouring the concrete into the mould, and starting the pressurizing device to compress the concrete.
6. The construction method according to claim 5, characterized in that the construction method further comprises:
arranging the connecting ribs along the height direction of the die;
And sequentially superposing the plurality of dies along the height direction of the dies, or sequentially splicing the plurality of dies along the length direction of the ground beam.
7. The construction method according to claim 5, characterized in that the construction method further comprises:
Arranging the connecting ribs along the length direction of the die;
The plurality of dies are sequentially spliced along the length direction of the ground beam, or the plurality of dies are arranged at intervals along the length direction of the ground beam.
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