CN114232993A - Multi-directional adjustable sleeve device for aluminum mould of steel reinforced concrete member and construction method - Google Patents
Multi-directional adjustable sleeve device for aluminum mould of steel reinforced concrete member and construction method Download PDFInfo
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- CN114232993A CN114232993A CN202111485156.XA CN202111485156A CN114232993A CN 114232993 A CN114232993 A CN 114232993A CN 202111485156 A CN202111485156 A CN 202111485156A CN 114232993 A CN114232993 A CN 114232993A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 91
- 239000010959 steel Substances 0.000 title claims abstract description 91
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 25
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 23
- 239000004567 concrete Substances 0.000 claims abstract description 42
- 238000009434 installation Methods 0.000 claims abstract description 16
- 229910000838 Al alloy Inorganic materials 0.000 claims description 42
- 238000003466 welding Methods 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 12
- 241000357293 Leptobrama muelleri Species 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 230000007547 defect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 238000009415 formwork Methods 0.000 abstract description 11
- 238000012545 processing Methods 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 description 18
- 230000008569 process Effects 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 230000001066 destructive effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
- E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
Abstract
The invention discloses a steel reinforced concrete member aluminum mould multidirectional adjustable sleeve device and a construction method, and the device comprises adjustable sleeve components arranged on the inner side of a concrete member, wherein the adjustable sleeve components are provided with a plurality of adjustable sleeve components which are distributed on two sides of the steel rib, each adjustable sleeve component comprises a U-shaped connecting piece, a sleeve and a screw rod, the U-shaped connecting pieces are used for being welded with the steel rib, and the middle parts of the upper ends of the U-shaped connecting pieces are provided with sleeve through holes; the sleeve is arranged on the U-shaped connecting piece, a drilling hole is formed in the lower end of the sleeve and used for the U-shaped connecting piece to penetrate through, and a thread end is arranged on the inner side of the upper portion of the sleeve; the lower end of the screw rod can extend into the inner side of the sleeve and is connected and screwed with the thread end, and the upper end of the screw rod penetrates through the sleeve and extends out of the component plate. The invention establishes an effective template tie system, the lateral pressure of the concrete on the template is transmitted to the steel ribs through the screws, each device equally divides the unfavorable load, and a single screw is prevented from bearing the overlarge load, so that the concrete formwork tie system has the advantages of simple processing, convenient installation and strong construction operability.
Description
Technical Field
The invention relates to the field of aluminum mould construction, in particular to an aluminum mould multidirectional adjustable sleeve device for a steel reinforced concrete member and a construction method.
Background
In the field of building construction, structural stress systems are also becoming increasingly complex, particularly for applications such as: large public buildings such as office buildings, airports, theaters, hotels, apartments and the like have high requirements on the stress performance of structures and components, and the buildings have the characteristics of large section of the components and high bearing capacity.
The traditional cast-in-place concrete structure is still in a form similar to that commonly adopted by buildings, but the load requirements cannot be completely met only by depending on a reinforced concrete form due to the combination and superposition of load effectiveness, so that the combined member with the steel ribs added into the concrete member is gradually applied to engineering, the integral resistance of the structure is enhanced through the steel rib concrete member, and the building function requirements are met. On the other hand, the aluminum alloy formwork system is widely applied to engineering practice as an important formwork form, and has the advantages of stereotyped design, high assembling speed, good forming effect and the like, wherein the reinforcing effect of the formwork system directly influences the quality of a concrete component, the pulling sheet type and screw type pulling structure piece two-side formworks are conventionally adopted, and screw type reinforcing is adopted, so that the aluminum alloy formwork system has the advantages of large lateral bearing capacity and good reinforcing effect, and is widely applicable to the structure constructed by the aluminum alloy formwork system and the condition that the section of the component is large.
In the aluminum mould construction, the templates on two sides of the steel reinforced concrete component and the steel ribs need to be provided with holes for the opposite pulling screws to pass through, and the three hole sites are on the same straight line.
Disclosure of Invention
The invention aims to provide a multi-directional adjustable sleeve device of an aluminum mould of a steel reinforced concrete member and a construction method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention combines the actual working condition when the steel reinforced concrete member is poured, the steel ribs are usually arranged in the member, the diameter of the external stressed steel bar is large, the arrangement is dense, and in addition, the factors such as errors in construction and the like can cause the situation that the screw rod in the deepening stage conflicts with the actual steel bar position, at the moment, the multi-direction adjustable sleeve device is adopted to solve the problem of the screw rod position, the screw rod penetrates out of the steel bar gap according to the specific situation to avoid the stressed steel bar, and meanwhile, the aluminum mold system is also ensured to be reinforced. The reinforcing idea of the unilateral template is combined, the steel rib and the aluminum template are connected into a whole through the screw, the lateral pressure of the concrete to the template is transmitted to the steel rib through the screw, each screw bears corresponding load, based on the worst lateral pressure calculation and the multidirectional adjustable destructive test result of the sleeve device, the design and processing are optimized, the resistance of the screw is guaranteed to be larger than the load effect, the template is effectively restrained, and the condition that the template of a non-drawknot or under-drawknot screw system fails is avoided.
The invention provides the following technical scheme: the steel reinforced concrete member aluminum mould multidirectional adjustable sleeve device comprises a plurality of adjustable sleeve assemblies arranged on the inner side of a concrete member, wherein the adjustable sleeve assemblies are distributed on two sides of the steel reinforced concrete member, each adjustable sleeve assembly comprises a U-shaped connecting piece, a sleeve and a screw rod, the U-shaped connecting pieces are used for being welded with the steel reinforced concrete member, and the middle parts of the upper ends of the U-shaped connecting pieces are provided with sleeve through holes; the sleeve is arranged on the U-shaped connecting piece, a drilling hole is formed in the lower end of the sleeve and used for the U-shaped connecting piece to penetrate through, and a thread end is arranged on the inner side of the upper portion of the sleeve; the lower end of the screw rod can extend into the inner side of the sleeve and is connected and screwed with the thread end, and the upper end of the screw rod penetrates through the sleeve and extends out of the component plate.
Preferably, the U-shaped connecting piece is machined by round steel with the diameter of 14mm, and the length of a single round steel is 300 mm. The U-shaped connecting piece improves the flexibility that the screw rod penetrates out of the preset hole of the aluminum template in all directions, and on the other hand, the screw rod is simply welded with the steel rib, so that the contact area is small, the welding part of the screw rod is easy to break in the concrete pouring process, the desoldering occurs, the welding work efficiency is low, the screw rod at the position is made to be in a drawknot failure state, the whole screw rod is made to be in a failure state when strong pressure is transferred to the surrounding screw rod in the moment, and the template is extruded to deform, so that the expansion die is exploded.
Preferably, the U-shaped connecting piece is welded at the preset position of the steel rib in a double-side welding mode.
Preferably, the component plate is provided with a preset hole for a screw to pass through, and the screw passes through the component plate and is pre-fixed through a steel gasket and a bolt.
Preferably, the member plate comprises an aluminum alloy template and a steel back ridge, and the aluminum alloy template is arranged on the inner side of the steel back ridge.
Preferably, the sleeve is provided with a fracture-preventing lining part with a thicker wall thickness, and the fracture-preventing lining part is used for preventing the fracture of the U-shaped connecting piece at the perforation.
Preferably, the construction method of the steel reinforced concrete member aluminum mold multidirectional adjustable sleeve device comprises the following steps:
s1: calculating the maximum value of the concrete pouring lateral pressure according to the size of the concrete member and the distribution position of the steel ribs, and further determining the material specification of the multidirectional adjustable sleeve device, wherein the material specification mainly comprises the following steps: the diameter and the length of round steel of the U-shaped connecting piece, the length of the sleeve, the specification of the wearable screw rod and the form and the length of the thread tooth;
s2: paying off and positioning the positions of the multidirectional adjustable sleeve devices, marking corresponding positions on the steel ribs, assembling all parts of the multidirectional adjustable sleeve devices, welding the U-shaped connecting pieces included in the multidirectional adjustable sleeve devices to preset positions of the steel ribs in a double-sided welding mode, detecting the welding seam quality after welding is finished, ensuring the welding quality, and avoiding welding defects such as air holes, slag inclusion, cracks, burning-through, incomplete welding and the like;
s3: after the multidirectional adjustable sleeve device is installed, screwing the screw rods with the corresponding specifications to the thread ends of the sleeve, installing an aluminum alloy template after the component steel bars are installed and pass the acceptance check, adjusting the positions and the directions of the screw rods when the aluminum alloy template is installed, avoiding the stress steel bars of a structural concrete component, penetrating the screw rods through preset holes of the aluminum alloy template, pre-fixing the screw rods by using steel gaskets and bolts, and checking and adjusting the aluminum alloy template after all the screw rods are pre-fixed;
s4: after all the aluminum alloy templates are pre-fixed, the steel back ribs on the outer sides of the aluminum alloy templates are installed according to a conventional installation mode, the screws and the bolts are locked one by one, the aluminum alloy template system is reinforced, the firm installation of each screw is ensured, the conditions of missing installation, wrong installation, looseness and the like of the screw are avoided, and the stability and firmness of the whole aluminum alloy template system are ensured.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the reinforcing method, a reinforcing idea of a unilateral template is combined, the steel rib and the aluminum template are connected into a whole through the screw, lateral pressure of concrete on the template is transmitted to the steel rib through the screw, each screw bears corresponding load, based on the worst lateral pressure calculation and the destructive test result of the multidirectional adjustable sleeve device, design and processing are optimized, the resistance of the screw is guaranteed to be larger than the load effect, the template is effectively restrained, and the template failure condition of a non-drawknot or under-drawknot screw system is avoided; the problem that the steel ribs are thick and cannot be perforated and the screw cannot be installed due to the fact that the hole positions of the steel plate wall and the hole positions of the template do not correspond to each other can be solved, the situation that field construction is difficult due to high requirement on the position alignment precision of the hole positions and construction errors is avoided, and the failure damage risk caused by the fact that an aluminum alloy template system cannot be reinforced is eliminated.
2. The multi-direction adjustable sleeve device enables the screw rods to have arrangement conditions, an effective template tie system is established, lateral pressure of concrete on the template is transmitted to the steel ribs through the screw rods, each device equally divides adverse load, the condition that a single screw rod bears overlarge load, the screw rod is broken or the chain screw rod is broken is avoided, and the safety of the concrete during pouring is improved.
3. The device has the characteristic of multidirectional adjustment, the screw direction is adjusted within an interval range, the preset hole of the aluminum alloy template is aligned, large-diameter concrete components are avoided, dense stressed reinforcing steel bars are arranged, and the problem of position conflict between the screw and the reinforcing steel bars is solved. Solves the problems of small direct welding contact area between the screw and the steel rib, easy breaking and welding, difficult welding and the like.
4. The device provided by the invention is simple to produce and process, convenient to install and strong in construction operability, and solves the problem that the screw rod does not have two-side opposite pulling on the aluminum alloy template. By adopting the device, the stability and reliability of a reinforcing system are effectively guaranteed, the position of the template is restrained, the lateral pressure in the concrete pouring process is resisted, and the adverse conditions of expansion, mold explosion and the like caused by instability of self reinforcement of the aluminum alloy template or disturbance in the concrete pouring process are reduced.
Drawings
FIG. 1 is a schematic view of a multi-directional adjustable socket device according to the present invention;
FIG. 2 is a schematic view of the installation of the multi-directional adjustable sleeve device of the present invention;
FIG. 3 is a flow chart of the construction and installation of the present invention.
In the figure: 1. a U-shaped connecting piece; 2. a sleeve; 3. a screw; 4. cutting the sleeve into sections; 5. perforating the sleeve; 6. a bolt; 7. a steel gasket; 8. a concrete member; 9. an aluminum alloy template; 10. steel back corrugation; 11. welding seams; 12. and (5) steel ribs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-2, the present invention provides a technical solution: the multidirectional adjustable sleeve device for the aluminum mould of the steel reinforced concrete member comprises a plurality of adjustable sleeve assemblies arranged on the inner side of a concrete member 8, wherein the adjustable sleeve assemblies are distributed on two sides of a steel rib 12 and each adjustable sleeve assembly comprises a U-shaped connecting piece 1, a sleeve 2 and a screw rod 3, the U-shaped connecting piece 1 is used for being welded with the steel rib 12, and a sleeve through hole 5 is formed in the middle of the upper end of the U-shaped connecting piece 1; the sleeve 2 is arranged on the U-shaped connecting piece 1, a drill hole is formed in the lower end of the sleeve 2 and is used for the U-shaped connecting piece 1 to penetrate through, the hole diameter of the drill hole is 16mm, and a thread end is arranged on the inner side of the upper portion of the sleeve 2; the lower end of the screw rod 3 can extend into the inner side of the sleeve 2 and is connected and screwed with the thread end, and the upper end of the screw rod 3 penetrates through the sleeve and extends out of the component plate on the inner side of the concrete component 8.
In this embodiment, the U-shaped connecting piece 1 is made of round steel with the diameter of 14mm, and the length of a single round steel is 300 mm. The U-shaped connecting piece 1 is arranged, so that the flexibility of the screw 3 penetrating out of the preset hole of the aluminum template in all directions is improved, the screw 3 is simply welded with the steel rib 12, the contact area is small, the welding part of the screw 3 is easy to break in the concrete pouring process, the desoldering occurs, the welding work efficiency is low, the screw at the position is made to be in a pulling joint failure state, the screw 3 rotates to the surrounding screw under the instant strong pressure, the whole screw failure occurs, the template is extruded to deform, and the expansion die explosion is caused.
In this embodiment, the sleeve 2 can be a sleeve with an outer diameter of 24mm and a wall thickness of 6mm, and the inner hole is provided with a coarse thread which can penetrate into the 14# screw 3.
In this embodiment, the U-shaped connecting member 1 is welded to the predetermined position of the steel rib 12 by a double-sided welding method.
In this embodiment, the component plate is provided with a preset hole for a screw to pass through, and the screw passes through the component plate and is pre-fixed through a steel gasket 7 and a bolt 6.
In this embodiment, the member plate includes an aluminum alloy template 9 and a steel back ridge 10, and the aluminum alloy template 9 is disposed inside the steel back ridge 10.
In the present embodiment, the sleeve 2 has a thick-walled fracture-preventing lining portion for preventing the fracture at the through hole of the U-shaped joint member 1.
In this embodiment, the construction of the steel reinforced concrete member aluminum mold multidirectional adjustable sleeve device is completed, and by adopting the measure, the problems that the steel ribs 12 in the steel reinforced concrete member are thick and cannot be perforated and the screw 3 cannot be installed due to the fact that the hole positions of the steel plate wall and the aluminum alloy template 9 do not correspond to each other are solved. The deviation of the aluminum alloy template 9 in the concrete pouring process is effectively avoided, a stable screw rod 3 drawknot system is formed, the lateral pressure resistance of the aluminum alloy template 9 in the pouring process is guaranteed, the constraint is limited, the adverse load is resisted, the multidirectional adjustable sleeve device is quickly installed, the arrangement is flexible, the reinforcing effect of the aluminum alloy template 9 is enhanced, the concrete pouring stability is improved, and the forming quality of structural members is guaranteed.
In this embodiment, above-mentioned sleeve device is through the actual operating mode when combining the reinforcing bar concrete component to pour, except arranging reinforcing bar 12 in this kind of component usually, its outside atress reinforcing bar diameter is big, arrange densely, factor such as error in the construction in addition, the condition with actual reinforcing bar position conflict can appear in screw rod 3 in the deepening stage, adopt multidirectional adjustable sleeve device can solve screw rod 3 position problem this moment, wear out screw rod 3 from the reinforcing bar clearance according to particular case, dodge the atress reinforcing bar, also guaranteed simultaneously that the aluminum mould system is consolidated. The reinforcing idea of the unilateral template is combined, the steel rib 12 and the aluminum template are connected into a whole through the screw, the lateral pressure of concrete on the template is transmitted to the steel rib 12 through the screw, each screw 3 bears the corresponding load, and based on the worst lateral pressure calculation and the destructive test result of the multidirectional adjustable sleeve device, the design and processing are optimized, the resistance of the screw is greater than the load effect, the template is effectively restrained, and the template failure condition of a non-drawknot or under-drawknot screw system is avoided.
Referring to fig. 3, in the present embodiment, the invention further provides a construction method of the multi-directional adjustable sleeve device for an aluminum form of a steel reinforced concrete member, including the steps of:
s1: calculating the maximum value of the concrete pouring lateral pressure according to the size of the concrete member 8 and the distribution position of the steel ribs 12, and further determining the material specification of the multidirectional adjustable sleeve device, wherein the material specification mainly comprises the following steps: the diameter and the length of round steel of the U-shaped connecting piece 1, the length of the sleeve 2, the specification of the wearable screw rod 3 and the form and the length of the thread teeth;
s2: paying off and positioning the positions of the multidirectional adjustable sleeve device which need to be arranged, marking corresponding positions on the steel rib 12, assembling all parts of the multidirectional adjustable sleeve device, welding the U-shaped connecting piece 1 included by the multidirectional adjustable sleeve device to a preset position of the steel rib 12 in a double-sided welding mode, detecting the quality of a welding seam 11 after welding is finished, ensuring the welding quality, and avoiding welding defects such as air holes, slag inclusion, cracks, burning-through, incomplete welding and the like;
s3: after the multidirectional adjustable sleeve device is installed, the screw rods 3 with the corresponding specifications are screwed on the thread ends of the sleeve 2, after the component steel bars are installed and pass the acceptance check, the aluminum alloy formwork 9 is installed, the positions and the directions of the screw rods 3 are adjusted when the aluminum alloy formwork 9 is installed, the stressed steel bars of the structural concrete component 8 are avoided, the screw rods 3 penetrate through preset holes of the aluminum alloy formwork 9 and are pre-fixed by using steel gaskets 7 and bolts 6, and after all the screw rods 3 are pre-fixed, the aluminum alloy formwork 9 is checked and adjusted;
s4: after all the aluminum alloy templates 9 are pre-fixed, the steel back ridges 10 on the outer sides of the aluminum alloy templates 9 are installed according to a conventional installation mode, the screws 3 and the bolts 6 are locked one by one, the aluminum alloy template 9 system is reinforced, the installation firmness of the positions of the screws 3 is ensured, the conditions of missing installation, wrong installation, loosening and the like of the positions of the screws 3 are ensured, and the stability and firmness of the whole aluminum alloy template 9 system are ensured.
In the construction of the embodiment of the invention, the construction needs to be controlled by the following key points:
1. the invention discloses a multidirectional adjustable sleeve device, which is designed by analyzing the lateral pressure of concrete and the reduction coefficient of actual stress according to the section size of a structural member and the arrangement condition of steel ribs 12 and deeply designing the device according to a load combination calculation result, and mainly relates to the following steps: the U-shaped connecting piece 1, the sleeve 2 and the screw 3 are selected and designed, and the material of the U-shaped connecting piece 1 is preferably a section bar with higher strength; the straight section for welding is longer, so that the contact area between the device and the steel rib is increased; the sleeve 2 is preferably a sleeve with thicker wall thickness to prevent the U-shaped connecting piece 1 from being broken at the perforated part; the specification of the screw 3 may be selected to meet the requirement of reinforcing the template and meet the requirement of lateral resistance.
2. Before installation, the multi-direction adjustable sleeve device is accurate in the paying-off positioning stage, the situation that the screw 3 cannot penetrate out of a template due to the fact that position deviation after installation exceeds an adjustable interval is avoided, the angle and the direction of the device cannot be forcibly pressed, twisted and moved during installation, the device exceeds the movement limit of the device, the device is damaged, and the stress performance is influenced.
3. When the device is installed, the welding quality directly influences the reinforcing effect of the template, so that in the 1 stage of welding the U-shaped connecting piece, the two-sided welding of a straight welding section must be ensured, the welding construction is noticed to meet the standard requirement, the influence on the pulling effect of the device caused by the welding defect is avoided, the device installation quality of the lower part of the structural member is detected after the welding is completed, and the failure is prevented.
4. Before large-area construction, a pulling resistance destructive test of the device is required, a load combination is calculated according to the comparison of field measured data, the actual numerical value is necessarily greater than the calculated load value, a safety guarantee coefficient is required to be set, and when the load requirement is not met, the device is designed and processed deeply again; when the load requirement is met, the template is used for processing and mounting.
5. Judging the vulnerable position of the device through a field pulling resistance destructive test, and correspondingly optimizing the device part, wherein the conventional vulnerable position is a perforated position of the U-shaped connecting piece 1, and the conventional vulnerable position is easy to break due to the thinner wall thickness; the weld position is broken; in addition, the screw rods 3 need to be screwed at the positions of the sleeves 2, so that the reinforcing or concrete pouring process is prevented from being disturbed and separated, the effect of the tie of the device before form removal is guaranteed, and the concrete pouring is formed at one time.
After the device is installed, and before large-area construction, a pulling resistance destructive test is carried out, the calculated result value of the concrete side pressure of the structural member is compared according to the actual field measured destructive test result, the load value which is supposed to be born by each multidirectional adjustable sleeve device system is analyzed through the worst load combination effect, the actual field measured destructive test result is necessarily larger than the side pressure value generated during concrete pouring, meanwhile, adverse factors such as disturbance in the pouring and tamping process are considered, a certain safety guarantee coefficient is set for the calculated value of the side pressure, and the actual measurement device damage result load value is wrapped by the product of each influence parameter and the calculated value of the concrete side pressure. For the design which does not meet the requirements, the device needs to be deepened again until the actual construction requirements are met.
The test shows that: the position that easily damages is U type connecting piece 1 perforation department, and the welding seam position breaks, and screw rod 3 need not screw up in the sleeve position then easily deviate from the inefficacy. The invention utilizes the thought of unilateral template reinforcement to overcome the problems that the steel rib of the steel rib concrete member is thick and can not be perforated and the screw rod 3 can not be installed due to the non-correspondence between the hole site of the steel plate wall and the hole site of the template.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The multidirectional adjustable sleeve device for the aluminum mould of the steel reinforced concrete member is characterized by comprising a plurality of adjustable sleeve components arranged on the inner side of the concrete member (8), wherein the adjustable sleeve components are distributed on two sides of a steel rib (12), each adjustable sleeve component comprises a U-shaped connecting piece (1), a sleeve (2) and a screw (3), the U-shaped connecting pieces (1) are used for being welded with the steel rib (12), and the middle parts of the upper ends of the U-shaped connecting pieces (1) are provided with sleeve through holes (5); the sleeve (2) is arranged on the U-shaped connecting piece (1), a drill hole is formed in the lower end of the sleeve (2) and used for the U-shaped connecting piece (1) to penetrate through, and a thread end is arranged on the inner side of the upper portion of the sleeve (2); the lower end of the screw rod (3) can extend into the inner side of the sleeve (2) and is connected and screwed with the thread end, and the upper end of the screw rod (3) penetrates through the sleeve and extends out of a component plate on the inner side of the concrete component (8).
2. The multi-directional adjustable sleeve device of the steel reinforced concrete member aluminum mold according to claim 1, wherein the U-shaped connecting piece (1) is machined by round steel with a diameter of 14mm, and the length of a single round steel is 300 mm.
3. The multi-directional adjustable sleeve device for the aluminum mold of the steel reinforced concrete member as claimed in claim 2, wherein the U-shaped connecting member (1) is welded to a predetermined position of the steel rib (12) by a double-sided welding method.
4. The multi-directional adjustable sleeve device for the aluminum mold of the steel reinforced concrete member as claimed in claim 1, wherein the member plate is provided with a predetermined hole for a screw to pass through, and the screw passes through the member plate and is pre-fixed by a steel gasket (7) and a bolt (6).
5. The multi-directional adjustable sleeve device of the steel reinforced concrete member aluminum mold according to claim 4, wherein the member plate comprises an aluminum alloy mold plate (9) and a steel back ridge (10), and the aluminum alloy mold plate (9) is arranged on the inner side of the steel back ridge (10).
6. The multi-directional adjustable sleeve device for the aluminum mold of the steel reinforced concrete member as recited in claim 1, wherein the sleeve (2) has a fracture-preventing lining portion with a thicker wall thickness, and the fracture-preventing lining portion is used for preventing the fracture of the through hole of the U-shaped connecting member (1).
7. The construction method of the multi-directional adjustable sleeve device for the aluminum mold of the steel reinforced concrete member as recited in any one of claims 1 to 6, comprising the steps of:
s1: calculating the maximum value of the concrete pouring lateral pressure according to the size of the concrete member (8) and the distribution position of the steel ribs (12), and further determining the material specification of the multidirectional adjustable sleeve device, wherein the material specification mainly comprises the following steps: the diameter and the length of round steel of the U-shaped connecting piece (1), the length of the sleeve (2), the specification of the wearable screw (3) and the form and the length of the thread;
s2: paying off and positioning the positions of the multidirectional adjustable sleeve device, which need to be arranged, marking corresponding positions on the steel rib (12), assembling all parts of the multidirectional adjustable sleeve device, welding a U-shaped connecting piece (1) included by the multidirectional adjustable sleeve device to a preset position of the steel rib (12) by adopting a double-sided welding mode, detecting the quality of a welding seam (11) after welding is finished, ensuring the welding quality, and avoiding welding defects such as air holes, slag inclusion, cracks, burn-through, incomplete welding and the like;
s3: after the multidirectional adjustable sleeve device is installed, screwing a screw rod (3) with a corresponding specification at a thread end of a sleeve (2), after a component steel bar is installed and checked to pass, installing an aluminum alloy template (9), adjusting the position and the direction of the screw rod (3) when the aluminum alloy template (9) is installed, avoiding a stress steel bar of a structural concrete component (8), penetrating the screw rod (3) through a preset hole of the aluminum alloy template (9), pre-fixing by using a steel gasket (7) and a bolt (6), and checking and adjusting the aluminum alloy template (9) after all the screw rods (3) are pre-fixed;
s4: after all the aluminum alloy templates (9) are pre-fixed, steel back edges (10) on the outer sides of the aluminum alloy templates (9) are installed according to a conventional installation mode, the screw rods (3) and the bolts (6) are locked one by one, the aluminum alloy template (9) system is reinforced, the fact that the screw rods (3) are installed firmly is guaranteed, the situations that the positions of the screw rods (3) are not neglected to be installed, are mistakenly installed and are loosened are guaranteed, and the stability and firmness of the whole aluminum alloy template (9) system are guaranteed.
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| CN202111485156.XA CN114232993A (en) | 2021-12-07 | 2021-12-07 | Multi-directional adjustable sleeve device for aluminum mould of steel reinforced concrete member and construction method |
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| CN202111485156.XA CN114232993A (en) | 2021-12-07 | 2021-12-07 | Multi-directional adjustable sleeve device for aluminum mould of steel reinforced concrete member and construction method |
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