CN212957267U - Slurry storage and discharge device for vertical steel bar sleeve grouting connection - Google Patents
Slurry storage and discharge device for vertical steel bar sleeve grouting connection Download PDFInfo
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- CN212957267U CN212957267U CN202021869112.8U CN202021869112U CN212957267U CN 212957267 U CN212957267 U CN 212957267U CN 202021869112 U CN202021869112 U CN 202021869112U CN 212957267 U CN212957267 U CN 212957267U
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Abstract
The utility model provides a vertical steel bar sleeve grout is connected with storing thick liquid grout outlet, store thick liquid grout outlet and connect in vertical arrangement's the telescopic top of grout, the telescopic lower extreme of grout can supply a lower reinforcing bar to insert for the slip casting end, and the upper end can supply an upper portion reinforcing bar to insert for the end of grout outlet, and the lateral wall of grout outlet is totally closed, store thick liquid grout outlet and make by non-metallic material, and its top has the reinforcing bar patchhole, can supply this upper portion reinforcing bar to seal to pass through, store thick liquid grout outlet's bottom has the muffjoint end, can supply with the upper bound sealing connection of grout outlet of telescopic, store thick liquid grout outlet's upper portion one side and have out the thick liquid mouth. When the fullness is detected, carrying out nondestructive detection or local damage drilling detection on the inner cavity of the slurry storage and discharge device, and checking the fullness of grouting material in the inner cavity of the slurry storage and discharge device; and obtaining the fullness information of the grouting material in the grouting sleeve by checking whether the grouting material is reserved in the inner cavity of the grout storage and outlet device.
Description
Technical Field
The utility model relates to a steel sleeve grout connection structure's that vertical precast concrete component used vertical steel sleeve grout is connected with storing thick liquid and is gone out thick liquid ware.
Background
In the prefabricated concrete structure building, the main reinforcement of the prefabricated part is usually connected by sleeve grouting. When the sleeve grouting connection method is applied to a vertical member, a grouting sleeve is generally embedded at the lower end part of the vertical member, such as a prefabricated column and a prefabricated wall, and is mainly arranged at the bottom of the prefabricated member.
The grouting sleeve has been used in engineering for decades since the invention in 1968. The sleeve grouting connection method is applied in China since 2009, and the sleeve structure type and the grouting construction process which are mature abroad are also adopted, but as the number of special grouting teams is small, most grouting operations are performed by common on-site construction workers, and quality supervision departments are often challenged on the fullness of the grouting sleeve and the strength of grouting material in the sleeve in the grouting construction. But grout muffjoint is concrete member internal node, belongs to the concealed engineering, to the sleeve grout joint that probably has the quality problem, does not have very reasonable reliable detection and restoration method at present, mainly shows in three aspects:
the grouting fullness of the inner cavity of the sleeve is difficult to detect, and the grouting sleeve is a metal cylinder, so that the fullness of the grouting material inside the sleeve cannot be detected by ultrasonic waves, elastic waves and the like. The detection of the X-ray method can clearly display the internal condition of the sleeve, but the detection cost is high, the detection is also limited by the thickness of a concrete member, and a satisfactory image is difficult to obtain by a portable ray instrument used in an engineering field for a wall or a prefabricated column with the thickness of more than 300 mm. The sensor method and the steel wire drawing method are both used for indirectly judging whether the grouting material at the grout outlet of the sleeve is full, and the fullness of the grouting material in the sleeve is difficult to detect;
secondly, the physical strength of the grouting material in the sleeve is difficult to detect, in engineering, standard curing grouting material compressive strength test blocks are manufactured under the same field condition to serve as the basis for judging the strength of the grouting material in the sleeve, but if the field grouting material compressive strength test blocks are not cured properly and the detection result is unqualified, the problem is very complicated to process, and if the real grouting material strength detection result cannot be obtained to serve as acceptance data, serious quality hidden troubles can be buried in the engineering;
thirdly, for the joints for confirming that the grouting material in the grouting sleeve is unqualified in plumpness, no matter the grouting material is supplemented into the sleeve from the sleeve grout outlet hole, or the member concrete covered on the surface of the sleeve is removed, and then the grouting material is supplemented after the hole is drilled on the sleeve, the repairing methods are very labor-consuming and laborious, the grout supplementing quality cannot be visually confirmed, the damage to the member body caused by the damaged member method is large, the repairing amount is large, so that the repairing difficulty of the joints which are not fully grouted is large, the production efficiency is low, and many engineering projects are reluctant to detect and find grouting defects, even conceal the problems.
In conclusion, if the plumpness or the strength of the grouting material in the sleeve grouting joint does not meet the design requirements, problems cannot be found or defects cannot be repaired, potential hazards are brought to the safety of the building structure, so that the quality of the fabricated building is suspected to be lower than that of the traditional cast-in-place construction building, and people also try to research the fabricated concrete structure without grouting sleeves to avoid the overseas mature high-efficiency connection method, and whether the new structure has new potential safety hazards or not is proved by a large number of engineering applications. At present, if the problems faced by sleeve grouting connection are not solved, the popularization and the healthy development of the fabricated building in China are affected, and even technical backing may occur.
Therefore, the difficult problems of detecting the grouting sleeve fullness and the strength of the grouting material in the sleeve are solved, and the development of a new sleeve grouting fullness repairing method is an urgent requirement of the current assembly type concrete building.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a vertical steel bar sleeve is grout and is connected with storing thick liquid grout outlet, solves the above-mentioned technical problem that exists among the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a vertical steel bar sleeve is grout and is connected with storing thick liquid and go out thick liquid ware, connects in the telescopic top of the grout of vertical arrangement, the telescopic lower extreme of grout can supply a lower reinforcing bar to insert for the slip casting end, and the upper end can supply an upper portion reinforcing bar to insert for going out the thick liquid end, goes out the lateral wall of thick liquid end totally closed, its characterized in that:
the slurry storage and discharge device is made of non-metal materials, the top of the slurry storage and discharge device is provided with a steel bar insertion hole for the upper steel bar to pass through in a sealing mode, the bottom of the slurry storage and discharge device is provided with a sleeve connecting end for the upper end of the slurry discharge end of the grouting sleeve to be connected in a sealing mode, and the upper portion of the slurry storage and discharge device is provided with a slurry discharge nozzle.
The vertical steel bar sleeve is connected with storing thick liquid and going out the thick liquid ware in grout, wherein: the slurry storage and discharge device is of a single-piece integral structure or a multi-piece combined structure, and the reinforcing steel bar insertion hole is coaxially arranged with the grouting sleeve.
The vertical steel bar sleeve is connected with storing thick liquid and going out the thick liquid ware in grout, wherein: the length of the inner cavity of the pulp storage and discharge device is not less than 20 mm.
The vertical steel bar sleeve is connected with storing thick liquid and going out the thick liquid ware in grout, wherein: the minimum distance between the inner cavity wall of the upper reinforcing steel bar section coated by the slurry storage slurry discharging device and the outer surface of the upper reinforcing steel bar is not less than 8mm, and the length of the inner cavity part which has a distance of 8mm or more with the upper reinforcing steel bar is 15 mm-45 mm.
The vertical steel bar sleeve is connected with storing thick liquid and going out the thick liquid ware in grout, wherein: the outer side of the upper reinforcing steel bar of the slurry storage and discharge device is also provided with a slurry storage column which is not coated with the upper reinforcing steel bar, and a slurry discharge nozzle of the slurry storage and discharge device is arranged at the upper part of the slurry storage column.
The slurry storage and outlet device is characterized in that: the slurry storage column is of a detachable structure, and the detachable slurry storage column and the main body part of the slurry storage and discharge device are connected in a matching manner to form a combined body structure.
The vertical steel bar sleeve is connected with storing thick liquid and going out the thick liquid ware in grout, wherein: the slurry outlet nozzle of the slurry storage and outlet device has an elevation angle larger than 0 degree.
The vertical steel bar sleeve is connected with storing thick liquid and going out the thick liquid ware in grout, wherein: the inner wall of the slurry storage and discharge device, which is coated on the upper reinforcing steel bar section and is opposite to the upper reinforcing steel bar, is an inclined surface or a conical surface or an arc surface, the included angle between the inclined surface and the conical surface and the axis of the reinforcing steel bar insertion hole is 0.5-75 degrees, and the included angle between the tangent line of the arc surface and the axis of the reinforcing steel bar insertion hole is 0.5-90 degrees.
The vertical steel bar sleeve is connected with storing thick liquid and going out the thick liquid ware in grout, wherein: the slurry storage and discharge device is provided with an elastic sealing structure at the reinforcing steel bar insertion hole and the sleeve connecting end, and the elastic sealing structure and the slurry storage and discharge device main body are of an integral structure.
The vertical steel bar sleeve is connected with storing thick liquid and going out the thick liquid ware in grout, wherein: the slurry storage and discharge device is provided with an elastic sealing structure at the reinforcing steel bar insertion hole or the sleeve connecting end, and the elastic sealing structure is a non-detachable structure formed by fixedly connecting an elastic sealing element which is manufactured separately with a main body part at the reinforcing steel bar insertion hole or the sleeve connecting end of the slurry storage and discharge device.
The vertical steel bar sleeve is connected with storing thick liquid and going out the thick liquid ware in grout, wherein: the slurry storage and discharge device is provided with an elastic sealing structure at the reinforcing steel bar insertion hole or the sleeve connecting end, and the elastic sealing structure is a detachable combined structure formed by connecting a sealing element with an elastic sealing effect and the reinforcing steel bar insertion hole or the sleeve connecting end of the slurry storage and discharge device in a mechanical matching manner.
The vertical steel bar sleeve is connected with storing thick liquid and going out the thick liquid ware in grout, wherein: the slurry outlet nozzle of the slurry storage and outlet device is a detachable slurry outlet nozzle, and the detachable slurry outlet nozzle is matched and connected with the main body part of the slurry storage and outlet device to form a combined body structure.
The vertical steel bar sleeve is connected with storing thick liquid and going out the thick liquid ware in grout, wherein: the pulp outlet nozzle of the pulp storage and pulp outlet device is connected with a pulp outlet joint or a pulp outlet pipe through a joint.
The utility model has the beneficial technical effects that:
1. the utility model discloses set up the slurry storage grout outlet device in grout sleeve upper end, when making each grout sleeve grout, grout sleeve upper portion has relied on the slurry storage grout outlet device to store the grouting material of certain volume, if the grouting material in the grout sleeve takes place from the condition that the slip casting end leaked, the grouting material in the slurry storage grout outlet device can descend along with the decline of the grout surface in the grout sleeve, supply the grout sleeve inner chamber, effectively guarantee the plumpness of the grouting material in the grout sleeve;
2. the utility model discloses set up the thick liquid ware of storing thick liquid in grout sleeve upper end, will move the detection to the grout plumpness outside grout sleeve from grout sleeve is interior, the grout plumpness in the thick liquid ware of storing thick liquid can reflect the plumpness of grout in grout sleeve directly perceived, has simplified the detection degree of difficulty of grout plumpness in grout sleeve greatly; if grouting materials are reserved in the slurry storage and discharge device, the inner cavity of the grouting sleeve is full, and when no grouting materials are reserved in the slurry storage and discharge device, the inner cavity of the grouting sleeve is indicated to be unsaturated at a high probability, and the grouting operation is required to be performed if the grouting materials are not full; because the slurry storage and discharge device is made of non-metal materials, the nondestructive detection or the local damage drilling detection of the inner cavity of the slurry storage and discharge device is more convenient and quicker to implement than the grouting fullness detection of the existing grouting sleeve, the detection cost is greatly reduced, and the detection accuracy is improved;
3. the slurry storage and discharge device provides a simple slurry supplementing scheme, no matter the grouting material in the grouting sleeve is not full or the grouting material in the slurry storage and discharge device is not full, holes can be drilled from the outer side surface of the precast concrete component to the upper part of the slurry storage and discharge device, and slurry is supplemented from the drilled positions, so that the damage of a connecting piece caused by drilling holes in the side wall of the sleeve for supplementing the grouting sleeve is avoided, the drilling difficulty of the slurry storage and discharge device position is easier than that of the grouting sleeve, and the grouting technology, operation difficulty and cost of the grouting sleeve are greatly reduced;
4. the slurry storage and discharge device is used for coating an inner cavity with the minimum distance of 8mm between the inner cavity wall and the outer surface of the upper reinforcing steel bar and the length of 15 mm-45 mm, the grouting material ring formed by the grouting material ring and the upper reinforcing steel bar can obtain a small core block sample of the grouting material from the position of the slurry storage and discharge device by adopting a core drilling method, the compressive strength of a small core block sample of grouting material of a grouting sleeve slurry storage and discharge device connected by a group of same-batch grouting is compared with the compressive strength of a small core block sample obtained on a group of standard curing compressive strength test pieces of the same-batch grouting material by the same core drilling method, the relation between the solid grouting material in the grouting sleeve joint and the known compressive strength of the grouting material can be obtained and used for judging whether the compressive strength of the grouting material in the sleeve is qualified or not, because the grouting material in the grout outlet device is completely the same as the grouting material in the sleeve and is under the same curing condition, the sampling from the grout outlet device completely solves the international problem that the entity of the grouting material in the grouting sleeve can not sample;
5. adopt the utility model discloses a grout muffjoint component can carry out the detection of various methods as required, can carry out necessary benefit thick liquid to not full joint and restore, checks calculation or the remedial measure that needs to the joint that grout material intensity is not enough, makes telescopic connection quality of grout and problem processing no longer have blind area and blank point.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of a grout outlet device of a grouting connection structure of a vertical steel bar sleeve provided by the invention;
fig. 2 is a schematic structural diagram of a second embodiment of the grout outlet device for the grouting connection structure of the vertical steel bar sleeve of the present invention.
Fig. 3 is a schematic structural view of a third embodiment of the grout outlet device of the grouting connection structure of the vertical steel bar sleeve of the present invention.
Fig. 4 is a schematic structural diagram of a fourth embodiment of the pulp storage and outlet device of the present invention.
Fig. 5 is a schematic structural view of a fifth embodiment of the pulp storage and outlet device of the present invention.
Fig. 6 is a schematic structural view of a sixth embodiment of the pulp storage and outlet device of the present invention.
Fig. 7 is a schematic structural view of a seventh embodiment of the pulp storage and outlet device of the present invention.
Fig. 8 is a schematic structural view of an eighth embodiment of the pulp storage and discharge device of the present invention.
Fig. 9 is a schematic structural view of a ninth embodiment of the pulp storage and outlet device of the present invention.
Fig. 10 is a work flow diagram of the joint grouting fullness detection and repair of the vertical steel bar sleeve grouting connection structure implemented by the slurry storage and discharge device of the present invention.
Description of reference numerals: 1-prefabricating a concrete member; 2-slurry storage and discharge device; 3-grouting a sleeve; 4-upper reinforcing steel bars; 5-grouting material; 6-lower reinforcing steel bars; 7-end surface of the bottom of the precast concrete member; 8-sealing slurry; 9-a lower structure; 10-sealing the plug; 11-grouting pipe; 12-grouting end; 13-slurry outlet end; 14-sleeve connection end; 15-inclined plane or conical surface or cambered surface; 16-a pulp outlet; 17-a slurry outlet pipe; 18-sealing plugs of the slurry outlet pipes; 19-inserting the reinforcing steel bar into the hole; 20-grouting nozzle; 21-grouting pipe; 22-sidewall grouting holes; 23-a base slurry; 24-a sealing cover; 25-coating the upper steel bar section; 26-slurry storage column; 30-slurry storage and discharge device main body; 31-steel bar insertion hole elastic sealing structure; 32-elastic sealing structure of sleeve connection end; 33-inserting the reinforcing steel bar into the hole and forming the elastic sealing element; 34-sleeve connection end elastic sealing element; 35-the steel bar insertion hole is provided with an elastic sealing structure sealing element; 36-the sleeve connecting end is provided with an elastic sealing structure sealing element; 37-a detachable slurry outlet nozzle; 38-A grout outlet nozzle to which a fitting or grout outlet pipe may be attached.
Detailed Description
As shown in fig. 1, the utility model provides a vertical steel sleeve grout connection structure's store thick liquid grout outlet, be applied to the precast concrete component 1 that is located the upper portion and be located the vertical steel bar connection between the lower part structure 9 of lower part, wherein:
a space is arranged between a precast concrete member 1 and a lower structural body 9, the precast concrete member 1 is provided with an upper reinforcing steel bar 4 protruding downwards, and the lower structural body 9 is provided with a lower reinforcing steel bar 5 protruding upwards;
the upper steel bars 4 are opposite to the lower steel bars 5 in position, and a grouting sleeve 3 is sleeved outside the upper steel bars 4, the part of the grouting sleeve 3 corresponding to the upper steel bars 4 is called a grout outlet end 13, and the part corresponding to the lower steel bars 5 is called a grouting end 12; in the embodiment, the side wall of the grouting end 12 of the grouting sleeve 3 is totally closed, the bottom surface of the grouting end 12 is close to or flush with the end surface 7 of the bottom of the precast concrete member 1, and the lower opening of the grouting end 12 is communicated with the gap; the periphery of the gap is sealed by sealing slurry 8 or other sealing materials and is communicated with a grouting pipe;
the lateral wall of grout outlet end 13 of grout sleeve 3 is totally closed, and the upper end of grout outlet end 13 upwards communicates and has store thick liquid grout outlet 2, store thick liquid grout outlet 2 and make by non-metallic material, its top has reinforcing bar patchhole 19, can supply upper portion reinforcing bar 4 is sealed to pass through (reinforcing bar patchhole 19 with grout sleeve 3 coaxial setting makes upper portion reinforcing bar 4 pass and store and can stretch into to grout sleeve 3 after thick liquid grout outlet 2), store the bottom of thick liquid grout outlet 2 and have sleeve connection end 14, can supply with the upper end sealing connection of grout outlet end 13 of grout sleeve 3, store the upper portion of thick liquid grout outlet 2 and have grout outlet 16, grout outlet 16 is connected with grout outlet pipe 17, grout outlet pipe 17 outwards extends to precast concrete member 1 surface.
When grouting connection is performed, grouting materials 5 are injected through a grouting pipe 11, enter a grouting end 12 of the grouting sleeve 3 upwards after the interval is filled, fill a gap between the grouting end 12 and a lower reinforcing steel bar 5, flow upwards to enter and fill a gap between a grout outlet end 13 of the grouting sleeve 3 and an upper reinforcing steel bar 4, flow upwards to enter and fill a gap between the grout storage grout discharger 2 and the upper reinforcing steel bar 4, and simultaneously fill a grout outlet 16 of the grout storage grout discharger 2 and a grout outlet pipe 17 connected with the grout outlet 16 until the grout outlet pipe 17 is filled, and then flow out of the precast concrete member 1.
Elastic sealing materials are arranged at the sleeve connecting end 14 and the reinforcing steel bar inserting hole 19 of the slurry storage and discharge device 2, so that slurry leakage of the slurry storage and discharge device 2 at the interface position is avoided.
The slurry storage and discharge device 2 is a single-piece integral structure formed by adhering elastic sealing materials to the sleeve connecting end 14 and the reinforcing steel bar insertion hole 19 by using non-metal materials, or a multi-piece combined structure formed by combining a plurality of non-metal materials and elastic sealing materials.
Wherein the length of the inner cavity of the pulp storage and discharge device 2 is not less than 20 mm; the minimum distance between the inner cavity wall of the upper reinforcing steel bar section 25 coated by the slurry storage slurry outlet device 2 and the outer surface of the upper reinforcing steel bar 4 is not less than 8mm, and the length of the inner cavity part which has a distance of 8mm or more with the upper reinforcing steel bar 4 is 15 mm-45 mm.
Wherein the pulp outlet nozzle 16 of the pulp storage pulp outlet device 2 has an elevation angle larger than 0 degree.
The inner wall of the slurry storage and discharge device 2, which is coated on the upper steel bar section 25 and is opposite to the upper steel bar 4, is an inclined surface or a conical surface or an arc surface 15, the included angle between the inclined surface and the conical surface and the axis of the steel bar insertion hole 19 is 0.5-75 degrees, and the included angle between the tangent of the arc surface and the axis of the steel bar insertion hole 19 is 0.5-90 degrees.
The grouting sleeve 3 is a cylindrical full-grouting sleeve 3 with an inner cavity surface having a concave-convex structure, so that anchoring capability between the grouting material 5 and the inner cavity surface of the grouting sleeve 3 is enhanced.
As shown in fig. 2 again the utility model provides a vertical steel bar sleeve grout connection structure's store thick liquid grout outlet ware second embodiment, its difference only lies in, the interval adopts seat thick liquids 23 to fill and seals the lower port of grout sleeve 3 through sealed lid 24, and no longer connects the slip casting pipe, but set up lateral wall slip casting hole 22 on the side of the slip casting end 12 of grout sleeve 3, lateral wall slip casting hole 22 connects slip casting mouth 20 and slip casting pipe 21 or direct connection slip casting pipe 21, and slip casting pipe 21 outwards extends to precast concrete component 1 surface.
As shown in fig. 3 again the utility model provides a vertical steel sleeve grout connection structure's thick liquid outlet device of storage third embodiment, its difference only lies in, thick liquid outlet device 2 of storage includes cladding upper portion reinforcing bar section 25 and thick liquid storage post 26, thick liquid outlet nozzle 16 of thick liquid outlet device 2 of storage is established on thick liquid storage post 26 upper portion, thick liquid storage post 26 is established in the interior contained angle scope of horizontal stirrup tip crotch of installation on upper portion reinforcing bar 4, does not influence the horizontal stirrup installation that precast concrete component 1 set up on upper portion reinforcing bar 4, the length of thick liquid storage post 26 is confirmed according to the thick liquid needs of mending of grout sleeve.
Referring to fig. 4 again, the present invention provides a fourth embodiment of a slurry storage and discharge device, wherein a steel bar insertion hole elastic sealing structure 31 and a sleeve connection end elastic sealing structure 32 are arranged on the slurry storage and discharge device 2, and the steel bar insertion hole elastic sealing structure 31 and the sleeve connection end elastic sealing structure 32 and the slurry storage and discharge device 2 are integrated into a whole.
Referring to fig. 5, the present invention provides a fifth embodiment of a slurry storage and discharge device, wherein a separately formed steel bar insertion hole elastic sealing member 33 and a separately formed sleeve connection end elastic sealing member 34 are fixedly connected to a slurry storage and discharge device main body 30 to form a non-detachable slurry storage and discharge device 2.
Referring to fig. 6, the present invention provides a sixth embodiment of a slurry storage and discharge device, wherein a steel bar insertion hole sealing member 35 with an elastic sealing effect and a sleeve connecting end sealing member 36 with an elastic sealing effect are respectively connected with a slurry storage and discharge device main body 30 through mechanical engagement to form a detachable combined structure.
Referring to fig. 7 again, the present invention provides a seventh embodiment of a slurry storage and discharge device, wherein the slurry storage and discharge device 2 comprises a detachable slurry discharge nozzle 37, and the detachable slurry discharge nozzle 37 is connected with the slurry storage and discharge device main body 30 in a fitting manner to form a combined structure.
Referring to fig. 8 again, the present invention provides an eighth embodiment of a slurry storage and discharge device, wherein the slurry storage and discharge device 2 comprises a detachable slurry storage column 26, a slurry discharge nozzle 38 is provided on the upper portion of the slurry storage column 26, and the detachable slurry storage column 26 and the slurry storage and discharge device main body 30 are connected in a matching manner to form an assembly structure.
Referring to fig. 9, the present invention provides a ninth embodiment of a slurry outlet device, wherein the slurry outlet nozzle of the slurry outlet device 2 is configured to be a mountable slurry outlet joint or a mountable slurry outlet pipe, and the slurry outlet nozzle 38 of the mountable joint or the mountable slurry outlet pipe is used for connecting the slurry outlet joint or the mountable slurry outlet pipe.
The utility model has the beneficial technical effects that:
1. the utility model discloses set up store thick liquid grout outlet 2 in grout sleeve 3 upper end, when making each grout sleeve 3 grout, grout sleeve 3 upper portion has all relied on store thick liquid grout outlet 2 and has stored grout 5 of certain volume, if grout 5 in grout sleeve 3 takes place to leak, grout 5 in store thick liquid grout outlet 2 can descend along with the decline of grout 5 thick liquid face in grout sleeve 3 promptly, replenish the inner chamber of grout sleeve 3, effectively guarantee the plumpness of grout 5 in grout sleeve 3;
2. the utility model discloses set up storage thick liquid outlet device 2 in grout sleeve 3 upper end, will move the detection to grout material 5 plumpness outside grout sleeve 3 from grout sleeve 3 is inside, the plumpness of grout material 5 in storage thick liquid outlet device 2 can directly perceivedly reflect the plumpness of grout material 5 in grout sleeve 3, has simplified the detection degree of difficulty of grout material 5 plumpness in grout sleeve 3 greatly; if grouting material 5 is reserved in the slurry storage and discharge device 2, the inner cavity of the grouting sleeve 3 is full, and when no grouting material 5 is reserved in the slurry storage and discharge device 2, the inner cavity of the grouting sleeve 3 is indicated to be unsaturated at a high probability, and the grouting operation is required to be performed if the grouting material is not full; because the slurry storage and discharge device 2 is made of non-metal materials, the nondestructive detection or the local damage drilling detection of the inner cavity of the slurry storage and discharge device 2 is more convenient and quicker to implement than the grouting fullness detection of the existing grouting sleeve 3, the detection cost is greatly reduced, and the detection accuracy is improved;
3. the slurry storage and discharge device 2 provides a simple slurry supplementing scheme, no matter the grouting material 5 in the grouting sleeve 3 is not full or the grouting material 5 in the slurry storage and discharge device 2 is not full, holes can be drilled from the outer side surface of the precast concrete member 1 to the slurry storage and discharge device 2, and slurry is supplemented from the section, so that the damage of a connecting piece caused by slurry supplementing of the holes drilled on the side wall of the grouting sleeve 3 is avoided, the difficulty of drilling the holes in the slurry storage and discharge device 2 is easier than that of drilling the holes in the grouting sleeve 3, and the slurry supplementing technology, the operation difficulty and the cost of the grouting sleeve 3 are greatly reduced;
4. the minimum distance between the inner cavity wall of the upper reinforcing steel bar section 25 coated by the slurry storage and discharge device 2 and the outer surface of the upper reinforcing steel bar 4 is not less than 8mm, and the length of the inner cavity part with the distance of 8mm and above with the upper steel bar is between 15mm and 45mm, a core drilling method is adopted to obtain a grouting material small core block sample from the slurry storage and discharge device 2, the compressive strength of a small core block sample of grouting material of a grouting sleeve slurry storage and discharge device connected by a group of same-batch grouting is compared with the compressive strength of a small core block sample obtained on a group of standard curing compressive strength test pieces of the same-batch grouting material by the same core drilling method, the relation between the grouting material in the grouting sleeve joint and the known compressive strength of the grouting material can be obtained, as the grouting material 5 in the slurry storage and discharge device 2 is completely the same as the grouting material 5 in the sleeve, and the sampling from the slurry storage and discharge device 2 completely solves the international problem that the entity of the grouting material 5 in the grouting sleeve 3 can not be sampled under the same environmental maintenance condition;
5. adopt the utility model discloses a grout sleeve 3 connecting elements can carry out the detection of various methods as required, can carry out necessary benefit thick liquid to the joint that is not full and repair, as shown in the flow of fig. 10, checks calculation or the remedial measure that needs to the joint that grout material 5 intensity is not enough, makes grout sleeve 3's connection quality and problem processing no longer have blind area and blank point.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. The utility model provides a vertical steel bar sleeve is grout and is connected with storing thick liquid and go out thick liquid ware, connects in the telescopic top of the grout of vertical arrangement, the telescopic lower extreme of grout can supply a lower reinforcing bar to insert for the slip casting end, and the upper end can supply an upper portion reinforcing bar to insert for going out the thick liquid end, goes out the lateral wall of thick liquid end totally closed, its characterized in that:
the slurry storage and discharge device is made of non-metal materials, the top of the slurry storage and discharge device is provided with a steel bar insertion hole for the upper steel bar to pass through in a sealing mode, the bottom of the slurry storage and discharge device is provided with a sleeve connecting end for the upper end of the slurry discharge end of the grouting sleeve to be connected in a sealing mode, and the upper portion of the slurry storage and discharge device is provided with a slurry discharge nozzle.
2. The slurry storage and discharge device for grouting connection of the vertical steel bar sleeve according to claim 1, characterized in that: the slurry storage and discharge device is of a single-piece integral structure or a multi-piece combined structure, and the reinforcing steel bar insertion hole is coaxially arranged with the grouting sleeve.
3. The slurry storage and discharge device for grouting connection of the vertical steel bar sleeve according to claim 1, characterized in that: the length of the inner cavity of the pulp storage and discharge device is not less than 20 mm.
4. The slurry storage and discharge device for grouting connection of the vertical steel bar sleeve according to claim 1, characterized in that: the minimum distance between the inner cavity wall of the upper reinforcing steel bar section coated by the slurry storage slurry discharging device and the outer surface of the upper reinforcing steel bar is not less than 8mm, and the length of the inner cavity part which has a distance of 8mm or more with the upper reinforcing steel bar is 15 mm-45 mm.
5. The slurry storage and discharge device for grouting connection of the vertical steel bar sleeve according to claim 1, characterized in that: the outer side of the upper reinforcing steel bar of the slurry storage and discharge device is also provided with a slurry storage column which is not coated with the upper reinforcing steel bar, and a slurry discharge nozzle of the slurry storage and discharge device is arranged at the upper part of the slurry storage column.
6. The slurry storage and discharge device for grouting connection of the vertical steel bar sleeve according to claim 5, characterized in that: the slurry storage column is of a detachable structure, and the detachable slurry storage column is connected with the main body part of the slurry storage outlet device in a matching manner to form a combined body structure.
7. The slurry storage and discharge device for grouting connection of the vertical steel bar sleeve according to claim 1, characterized in that: the slurry outlet nozzle of the slurry storage and outlet device has an elevation angle larger than 0 degree.
8. The slurry storage and discharge device for grouting connection of the vertical steel bar sleeve according to claim 1, characterized in that: the inner wall of the slurry storage and discharge device, which is coated on the upper reinforcing steel bar section and is opposite to the upper reinforcing steel bar, is an inclined surface or a conical surface or an arc surface, the included angle between the inclined surface and the conical surface and the axis of the reinforcing steel bar insertion hole is 0.5-75 degrees, and the included angle between the tangent line of the arc surface and the axis of the reinforcing steel bar insertion hole is 0.5-90 degrees.
9. The slurry storage and discharge device for grouting connection of the vertical steel bar sleeve according to claim 1, characterized in that: the slurry storage and discharge device is provided with an elastic sealing structure at the reinforcing steel bar insertion hole and the sleeve connecting end, and the elastic sealing structure and the main body part of the slurry storage and discharge device are of an integral structure.
10. The slurry storage and discharge device for grouting connection of the vertical steel bar sleeve according to claim 1, characterized in that: the slurry storage and discharge device is provided with an elastic sealing structure at the reinforcing steel bar insertion hole or the sleeve connecting end, and the elastic sealing structure is a non-detachable structure formed by fixedly connecting an elastic sealing element which is manufactured separately with a main body part at the reinforcing steel bar insertion hole or the sleeve connecting end of the slurry storage and discharge device.
11. The slurry storage and discharge device for grouting connection of the vertical steel bar sleeve according to claim 1, characterized in that: the slurry storage and discharge device is provided with an elastic sealing structure at the reinforcing steel bar insertion hole or the sleeve connecting end, and the elastic sealing structure is a detachable combined structure formed by connecting a sealing element with an elastic sealing effect with the main body part at the reinforcing steel bar insertion hole or the sleeve connecting end of the slurry storage and discharge device in a mechanical fit manner.
12. The slurry storage and discharge device for grouting connection of the vertical steel bar sleeve according to claim 1, characterized in that: the slurry outlet nozzle of the slurry storage and outlet device is a detachable slurry outlet nozzle, and the detachable slurry outlet nozzle is matched and connected with the main body part of the slurry storage and outlet device to form a combined body structure.
13. The slurry storage and discharge device for the grouting connection of the vertical steel bar sleeve according to any one of claims 1 to 12, characterized in that: the pulp outlet nozzle of the pulp storage and pulp outlet device is connected with a pulp outlet joint or a pulp outlet pipe through a joint.
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| CN202021869112.8U CN212957267U (en) | 2020-08-31 | 2020-08-31 | Slurry storage and discharge device for vertical steel bar sleeve grouting connection |
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| CN202021869112.8U CN212957267U (en) | 2020-08-31 | 2020-08-31 | Slurry storage and discharge device for vertical steel bar sleeve grouting connection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653196A (en) * | 2021-08-26 | 2021-11-16 | 浙江理工大学 | Assembled building grouting sleeve with sealing assembly and connecting method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653196A (en) * | 2021-08-26 | 2021-11-16 | 浙江理工大学 | Assembled building grouting sleeve with sealing assembly and connecting method thereof |
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