CN104020037B - For anchoring device and the detection method thereof of mortar surface layer intensity detection - Google Patents
For anchoring device and the detection method thereof of mortar surface layer intensity detection Download PDFInfo
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- CN104020037B CN104020037B CN201410254217.5A CN201410254217A CN104020037B CN 104020037 B CN104020037 B CN 104020037B CN 201410254217 A CN201410254217 A CN 201410254217A CN 104020037 B CN104020037 B CN 104020037B
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Abstract
The present invention discloses a kind of anchoring device for mortar surface layer intensity detection and detection method thereof, this anchoring device comprise the anchoring part for anchoring into mortar surface layer and for being connected on mortar surface layer to regulate and keep the adjustable positioning component of the anchoring angle of anchoring part, anchoring part is flexibly connected with adjustable positioning component, have structure simple, with low cost, easy to operate, detection accuracy can be ensured, improve the economy of construction and the advantage such as operating efficiency; The step that this detection method comprises boring note glue, install anchoring device, anchoring fixes, removes, detects, has that construction procedure is simple, operating efficiency height, economic and practical, accuracy advantages of higher.
Description
Technical field
The present invention relates to construction work Detection and Identification technical field, it is specifically related to a kind of anchoring device for mortar surface layer intensity detection and detection method thereof.
Background technology
Masonry structure is a kind of architecture structure form generally used of China. Along with progress and the economic development of science, earthquake-resistant building is set up defences by people and the requirement of safety performance improves constantly, and existing old masonry structure building reliability is on the low side, does not meet current seismic specification and sets up defences requirement. When house needs change structure purposes, improves working load, increases usage space, or when not reaching design requirements owing to construction quality is inferior, just need structure is carried out reinforcement and strengthening, to ensure its use safety, extend working life.
What masonry structure building was common add solid method comprises: increasing section method, reinforcing steel net shell surface layer method for strengthening, outsourcing steel method, overcoat reinforced concrete wall method, collar tie beam is set and forming column, set up or expand counterfort post, wall between windows place set up reinforced concrete structural column etc. Wherein, reinforcing steel net shell surface layer method for strengthening is a kind of method of comparatively economical and effective. The method is to cracking or the additional reinforcing mat of uncracked body of wall, adopts conventional cement mortar surface layer to reinforce, to improve its bearing capacity, rigidity and antidetonation ability. Reinforcing steel net shell surface layer method for strengthening is low because of easy construction, cost, and does not substantially take building space, applies very general in the reinforcing of masonry load-bearing component or concrete bearing component.
In the practice process of reinforcing steel net shell surface layer method for strengthening, usually can cannot determine whether the strength grade of mortar meets design requirement due to various reason. But, how consolidation effect is carried out accurate assessment and become one of important topic in field of reinforcement, carry out the research to reinforced efficiency test technology, find effective, economic detection method and set up corresponding technical regulation and industry standard becomes an extremely urgent job.
In traditional detection technique means, the ultimate compression strength detection of sand-cement slurry also has the detection method of some maturations, such as resilience method, penetration method and shearing method etc. But considering that mortar surface layer intensity directly reflects consolidation effect, therefore determining that actual mortar strength also just becomes a kind of extremely important detection means by mortar surface layer being carried out on-the-spot sampling Detection. Up to the present, but in actual engineering, the Site Detection of mortar surface layer ultimate compression strength does not also have special detection device and unified standard. Due to the singularity of mortar surface layer, the detection means of above-mentioned concrete or ordinary mortar ultimate compression strength can not be applied to the Site Detection of surface layer mortar directly and accurately. In engineering reinforcement, the ultimate compression strength of surface layer mortar used is all in the grade of M30 or more, so the detection means of ordinary mortar ultimate compression strength still can not meet testing requirement. Core drilling method has the advantages that on-site sampling thickness is big, capacity is big, it is the method the most accurately of test material ultimate compression strength, but core drilling method sampling thickness is at least 75mm, and in engineering reality, the thickness of mortar surface layer is only 25mm��40mm, cannot meet its application conditions. When adopting inspection by rebound method, concrete crushing strength resilience instrument Site Detection has the characteristic that influence factor is many, discreteness is big, and the detection of mortar surface layer is not suitable for by the method equally. Therefore, the detection method of reinforced cementitious mortar finding a kind of practical to elimination hidden dangers in project, guarantee construction quality and have safely very important meaning.
The features such as pulling out method has micro-destructive, and testing process is simple to operate, and the reparation after detection is comparatively easy, have been widely used in the detection of concrete crushing strength, and domestic and international many experts all did the research of similar work, and effect is good. Considering mortar and the similarity of concrete material performance, researchist has carried out the exploration of pulling out method Site Detection mortar surface layer ultimate compression strength, and achieves good achievement in research. The method first chooses measuring point on mortar surface layer, utilizes the method for first dress or rear dress vertically to be imbedded in mortar surface layer by anchoring part, is then extracted from mortar surface layer by anchoring part with pullout machine, record peak pullout load. Testing staff extracts the linear formula between power and ultimate compression strength by mortar surface layer, can pull out mortar surface layer intensity corresponding to output calculation according to what record. When adopting pull-out post-insert method the intensity reinforcing mortar surface layer in actual engineering to be detected, first on mortar surface layer, choose measuring point, then metope boring note glue it is perpendicular to, anchoring part is imbedded in hole, reach until colloid and with pullout machine, anchoring part is extracted after intensity, by correlation formula, can according to pulling out mortar surface layer intensity corresponding to output calculation. But, in actually operating, anchoring glue solidifies and reaches intensity and need certain time, often gravitate is sagging for anchoring part in hole, cannot be completely vertical with vertical metope, cause recording that to extract power numerical value inaccurate, and then have influence on the accuracy of mortar surface layer intensity detection.
Summary of the invention
The technical problem to be solved in the present invention is the deficiency overcoming prior art existence, there is provided a kind of structure simple, with low cost, easy to operate, detection accuracy can be ensured, improve economy and the anchoring device for mortar surface layer intensity detection of operating efficiency of construction, also a kind of construction procedure of corresponding offer simply, operating efficiency height, the detection method that economic and practical, accuracy is high.
For solving the problems of the technologies described above, the present invention provides a kind of anchoring device for mortar surface layer intensity detection, comprise the anchoring part for anchoring into described mortar surface layer and for being connected on described mortar surface layer to regulate and keep the adjustable positioning component of the anchoring angle of described anchoring part, described anchoring part is flexibly connected with described adjustable positioning component.
In above-mentioned anchoring device, described adjustable positioning component comprises web member, at least one movable branching rod and at least two fixing pole for admittedly being connect by fastening piece and described mortar surface layer, described movable branching rod is all connected with described web member with fixing pole, and described movable branching rod is provided with the distance regulating mechanism of spacing between adjustable pole and mortar surface layer.
In above-mentioned anchoring device, described distance regulating mechanism comprises the adjustment screw rod offseted with described mortar surface layer, and described movable branching rod is provided with threaded hole, and described adjustment screw rod is connected with described threaded hole thread fit.
In above-mentioned anchoring device, described web member is provided with screw thread through hole, and described anchoring part and described screw thread through hole whorl are connected.
In above-mentioned anchoring device, the quantity of described movable branching rod is one, and the quantity of described fixing pole is two.
In above-mentioned anchoring device, described movable branching rod and fixing pole are uniformly distributed in the surrounding of described web member.
In above-mentioned anchoring device, described fixing pole is provided with fastening piece open holes or groove installed by fastening piece.
In above-mentioned anchoring device, described fixing pole is Z-shaped, and described movable branching rod is straight bar type.
In above-mentioned anchoring device, described anchoring part comprises mobile jib portion, anchoring round plate and thread rod part, and described anchoring round plate is connected to the one end in described mobile jib portion, and described thread rod part is connected to the other end in described mobile jib portion.
The detection method of the present invention, comprises the following steps:
1. reconnaissance boring on the mortar surface layer that construction is complete, injects anchoring glue after dust in cleaning hole;
2. being connected with described web member thread fit by described anchoring part, the link position of adjusting connector and anchoring part is to predetermined position;
3. the anchored end of anchoring part is inserted in the hole filling anchoring glue in a rotative pattern, until fixing pole contacts with mortar surface layer, after regulating the surface-normal that screw rod makes anchoring part and mortar surface layer, fastening piece is adopted to be affixed on mortar surface layer by fixing pole;
4. removal of fastener after anchoring glue solidifies, dismantles adjustable positioning component;
5. drawing instrument drawing anchoring part is adopted, and the intensity of mortar surface layer is detected by the pulling out method based on routine.
Compared with prior art, it is an advantage of the current invention that: the anchoring device of the present invention is mainly used in the intensity of pulling out method detection mortar surface layer, anchor in the process of mortar surface layer at anchoring part, by arranging adjustable positioning component, regulate the anchoring angle of anchoring part on mortar surface layer, make anchoring part vertical with mortar surface layer, and keep the anchoring angle of anchoring part until anchoring part is completely fixed, to ensure accuracy of detection, improve the accuracy of detection, owing to adjustable positioning component is flexibly connected with the employing of anchoring part, after anchoring part is completely fixed, adjustable positioning component can be dismantled again, follow-up detection work can not be affected. the anchoring device of the present invention has the advantage such as economy and operating efficiency that structure is simple, with low cost, easy to operate, can improve construction, the detection method of the present invention adopts the intensity of above-mentioned anchoring device detection mortar surface layer, has that construction procedure is simple, operating efficiency height, economic and practical, detection accuracy advantages of higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention for adjustable positioning component in the anchoring device of mortar surface layer intensity detection.
Fig. 2 is the structural representation of the present invention for anchoring part in the anchoring device of mortar surface layer intensity detection.
The structural representation of Fig. 3 when to be the present invention adopt pull-out post-insert method anchoring for the anchoring device of mortar surface layer intensity detection.
Fig. 4 is that the present invention is for the structural representation after the anchoring device employing pull-out post-insert method anchoring of mortar surface layer intensity detection.
To be the present invention adopt structural representation when first filling pulling out method anchoring for the anchoring device of mortar surface layer intensity detection to Fig. 5.
Fig. 6 is that the present invention is for the structural representation after the anchoring device employing first dress pulling out method anchoring of mortar surface layer intensity detection.
Marginal data:
1, mortar surface layer; 2, anchoring part; 21, mobile jib portion; 22, anchoring round plate; 23, thread rod part; 3, adjustable positioning component; 31, web member; 311, screw thread through hole; 32, movable branching rod; 321, threaded hole; 33, fixing pole; 331, groove installed by fastening piece; 34, screw rod is regulated; 4, fastening piece; 5, anchoring glue.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment 1:
As shown in Figures 1 to 4, the present invention is used for the anchoring device of mortar surface layer intensity detection, comprise the anchoring part 2 for anchoring into mortar surface layer 1 and for being connected on mortar surface layer 1 to regulate and keep the adjustable positioning component 3 of the anchoring angle of anchoring part 2, adjustable positioning component 3 comprises web member 31, movable branching rod 32 and two fixing poles 33, movable branching rod 32 is all fixedly connected with web member 31 with fixing pole 33, and anchoring part 2 is flexibly connected with adjustable positioning component 3. wherein, fixing pole 33 is for admittedly connecing by fastening piece 4 and mortar surface layer 1, and movable branching rod 32 is provided with the distance regulating mechanism of spacing between adjustable pole 32 and mortar surface layer 1. distance regulating mechanism comprises the adjustment screw rod 34 offseted with mortar surface layer 1, movable branching rod 32 is provided with threaded hole 321, screw rod 34 is regulated to be connected with threaded hole 321 thread fit, rotate and regulate screw rod 34 its length stretching out threaded hole 321 adjustable, and then regulate the angle between anchoring part 2 and mortar surface layer 1. this adjustable positioning component 3 is according to the simple principle of " determining a plane at 3 ", by the cooperation position changing threaded hole 321 with regulate screw rod 34, regulate an above-mentioned movable branching rod 32 and two fixing determined planes of pole 33, and then ensure that anchoring part 2 is vertical with mortar surface layer 1. when this anchoring device is used for the intensity of rear pulling out method detection mortar surface layer 1, anchoring part 2 is connected on web member 31, again by the boring filling anchoring glue 5 on the anchored end insertion mortar surface layer 1 of anchoring part 2, before anchoring glue 5 does not solidify, regulate the anchoring angle of anchoring part 2 on mortar surface layer 1, make anchoring part 2 vertical with mortar surface layer 1, then fastening piece 4 (steel nail) is adopted to be fixed on mortar surface layer 1 by fixing pole 33, screw rod 34 is regulated to make anchoring part 2 keep vertical with mortar surface layer 1, until adjustable positioning component 3 is removed after solidifying by anchoring glue 5 from anchoring part 2, final anchoring part 2 is completely fixed on mortar surface layer 1 and vertical with mortar surface layer 1, thus accuracy of detection can be ensured, improve the accuracy of detection.
In the present embodiment, anchoring part 2 comprises mobile jib portion 21, anchoring round plate 22 and thread rod part 23, web member 31 is provided with the screw thread through hole 311 coordinated with thread rod part 23, anchoring round plate 22 is connected to the one end in mobile jib portion 21, thread rod part 23 is connected to the other end in mobile jib portion 21, mobile jib portion 21 and anchoring round plate 22 are major anchorage part, it is embedded in mortar surface layer 1, anchoring round plate 22 is a disk bigger than mobile jib portion 21 diameter, it extend in mortar surface layer 1, end anchor force is formed with mortar or anchoring glue 5, mobile jib portion 21 forms bond stress with mortar or anchoring glue 5. wherein, the length in mobile jib portion 21 is 25mm, and diameter is 8mm, and the diameter of anchoring round plate 22 is 14mm, and thickness is 5mm, and the length of thread rod part 23 is 35mm, and full diameter of thread is 14mm, corresponding with the pull bar of drawing instrument. the thread rod part 23 of anchoring part 2 is connected with screw thread through hole 311 thread fit, the link position of thread rod part 23 with screw thread through hole 311 can be regulated, and then control anchoring part 2 anchors into the length in mortar surface layer 1, improve the accuracy of mortar surface layer 1 intensity detection work, also facilitate follow-up Strength co-mputation.
Above-mentioned anchoring part 2 devises mobile jib portion 21 length according to fiber cement mortar surface layer 1 actual (real) thickness in reinforcing engineering; Simultaneously for increasing the cohesive force with fiber cement mortar surface layer 1, it is designed to anchoring round plate 22 expand disk shape; Considering the requirement of strength of anchoring part 2, mobile jib portion 21 diameter is decided to be 8mm, regulation mobile jib portion 21 material adopts the carbon steel being not less than 6.8 grades to make simultaneously, thus ensures the fastening wearing quality of anchoring part 2, effectively avoids being out of shape in pulling out method testing process or pulling off; According to different anchorage styles, anchoring part 2 can be used for the intensity detection that thickness is greater than the mortar surface layer 1 of 30mm, both can directly be anchored in mortar surface layer 1 for first filling pulling out method Site Detection mortar surface layer 1 intensity, it is also possible to coordinate with anchoring glue 5 and form entirety for pull-out post-insert method Site Detection mortar surface layer 1 intensity. No matter this anchoring part 2 adopts first fills pulling out method or pull-out post-insert method, can anchoring reliable with mortar surface layer 1, when pull, the obvious tapered destruction of surface of fracture, reflects the destruction principle of mortar surface layer 1 preferably, meets the conclusion of correlative study. Its structure is simple, cost of manufacture is low, intensity is reliable, has good promotional value at engineering structure detection field.
When employing first fills pulling out method, first arranging measuring point in basic unit, adjacent more than measuring point spacing 300mm, measuring point distance body of wall more than edge 150mm, is first vertically placed in substrate surface by anchoring part 2, then smears mortar surface layer 1 thereon, and mortar surface layer 1 thickness is 30mm. Mortar surface layer 1 point smears pressure three times, and first time smears pressure by floating for substrate surface gap hole, and it is 15mm that second time smears pressure mortar thickness, removes adjustable positioning component 3 before second layer mortar final set, then smears pressure third layer mortar, and third layer mortar thickness is 15mm. Mortar surface layer 1 maintenance carries out pull after reaching requirement.
When adopting pull-out post-insert method, as shown in Figure 5 and Figure 6, first choose measuring point on mortar surface layer 1 surface, adjacent more than measuring point spacing 300mm, measuring point distance body of wall more than edge 150mm. Then holing on measuring point, drilling depth is 30mm, and borehole diameter is 18mm. Clean out in hole after boring, and inject anchoring glue 5, by anchoring part 2 slowly at the bottom of advances through hole, and be vertically fixed on mortar surface layer 1 with fixing pole 33. After anchoring glue 5 solidifies and reaches intensity, remove adjustable positioning component 3, carry out pull.
In the present embodiment, fixing pole 33 is Z-shaped, and two fixing poles 33 bend towards the same side of web member 31, and movable branching rod 32 is in straight bar type, and the one end namely fixing pole 33 is welded on web member 31, and the other end is that the bending of Z font extends. The flat segments length that fixing pole 33 is connected with web member 31 is 35mm, flat segments length away from web member 31 is 35mm, the middle segment length connecting two flat segments is 40mm, making the spacing between web member 31 and mortar surface layer 1 also after being fixed on mortar surface layer 1 is 40mm, the length of movable branching rod 32 is 100mm, after being connected on movable branching rod 32 by adjustment screw rod 34, adjustable positioning component 3 entirety, in claw type, makes to be spaced a distance between web member 31 and mortar surface layer 1. Movable branching rod 32 and fixing pole 33 are uniformly distributed in the surrounding of web member 31, and namely angle between movable branching rod 32 and two fixing poles 33 is 120 ��. Fixing pole 33 is provided with fastening piece and installs groove 331, is convenient to adopt fastening piece 4 fixing pole 33 to be fixed on mortar surface layer 1. In other embodiments, it is possible on fixing pole 33, establish fastening piece open holes.
Embodiment 2:
Detect a detection method for mortar surface layer intensity, comprise the following steps:
1. boring note glue: reconnaissance boring on the mortar surface layer 1 that construction is complete, injects anchoring glue 5 after dust in cleaning hole;
2. anchoring device is installed: screwed in by the thread rod part 23 of anchoring part 2 in the threaded hole 321 of web member 31, the link position of adjusting connector 31 and anchoring part 2 is to predetermined position, this predetermined position is determined according to anchoring part 2 anchorage depth, and in the present embodiment, anchorage depth is 30mm;
3. anchoring is fixed: the anchored end (anchoring round plate 22) of anchoring part 2 slowly inserted in a rotative pattern in the hole filling anchoring glue 5, anchoring glue 5 and anchoring part 2 is made to have effective adhesive, until two fixing poles 33 contact with mortar surface layer 1, illustrate that anchoring part 2 has reached anchorage depth, after regulating the surface-normal that screw rod 34 makes anchoring part 2 and mortar surface layer 1 again, adopt fastening piece 4 and fastening piece installation groove 331 to coordinate and two fixing poles 33 are fixed on mortar surface layer 1; Fastening piece 4 can adopt steel nail or screw etc.;
4. removing: after about 48 hours, anchoring glue 5 solidifies, removal of fastener 4, counterclockwise rotary adjustable positioning component 3, makes web member 31 oppositely exit from the thread rod part 23 of anchoring part 2, now remaining perpendicular on mortar surface layer 1 anchoring part 2;
5. detect: adopt drawing instrument drawing anchoring part 2 to carry out the detection of mortar surface layer 1 intensity.
Above-mentioned detection method has that construction procedure is simple, operating efficiency height, the advantage that economic and practical, detection accuracy is high. Owing to adjustable positioning component 3 ensure that in anchoring glue 5 process of setting, anchoring part 2 is vertical with mortar surface layer 1, after removing adjustable positioning component 3, anchoring part 2 is vertical with wall surface mortar surface layer 1 with the axis at drawing instrument pull bar place, thus can guarantee the accuracy of detected result, substantially increase detection efficiency.
Claims (7)
1. the anchoring device for mortar surface layer intensity detection, it is characterized in that: comprise the anchoring part (2) for anchoring into described mortar surface layer (1) and described mortar surface layer (1) is upper to be regulated and keep the adjustable positioning component (3) of the anchoring angle of described anchoring part (2) for being connected to, described anchoring part (2) is flexibly connected with described adjustable positioning component (3); Described adjustable positioning component (3) comprises web member (31), at least one movable branching rod (32) and at least two fixing pole (33) for admittedly being connect by fastening piece (4) and described mortar surface layer (1), described movable branching rod (32) is all connected with described web member (31) with fixing pole (33), and described movable branching rod (32) is provided with the distance regulating mechanism of spacing between adjustable pole (32) and mortar surface layer (1); Described distance regulating mechanism comprises the adjustment screw rod (34) offseted with described mortar surface layer (1), and described movable branching rod (32) is provided with threaded hole (321), and described adjustment screw rod (34) is connected with described threaded hole (321) thread fit; Described web member (31) is provided with screw thread through hole (311), and described anchoring part (2) is connected with described screw thread through hole (311) thread fit.
2. the anchoring device for mortar surface layer intensity detection according to claim 1, it is characterised in that: the quantity of described movable branching rod (32) is one, and the quantity of described fixing pole (33) is two.
3. the anchoring device for mortar surface layer intensity detection according to claim 2, it is characterised in that: described movable branching rod (32) and fixing pole (33) are uniformly distributed in the surrounding of described web member (31).
4. the anchoring device for mortar surface layer intensity detection according to any one of claim 1 ~ 3, it is characterised in that: described fixing pole (33) is provided with fastening piece open holes or groove (331) installed by fastening piece.
5. the anchoring device for mortar surface layer intensity detection according to any one of claim 1 ~ 3, it is characterised in that: described fixing pole (33) is Z-shaped, and described movable branching rod (32) is in straight bar type.
6. the anchoring device for mortar surface layer intensity detection according to any one of claim 1 ~ 3, it is characterized in that: described anchoring part (2) comprises mobile jib portion (21), anchoring round plate (22) and thread rod part (23), described anchoring round plate (22) is connected to one end of described mobile jib portion (21), and described thread rod part (23) is connected to the other end of described mobile jib portion (21).
7. adopt in the claims 1 ~ 6 detection method for the anchoring device detection mortar surface layer intensity described in any one, comprise the following steps:
1. in the upper reconnaissance boring of the mortar surface layer (1) that construction is complete, in cleaning hole, after dust, anchoring glue (5) is injected;
2. described anchoring part (2) being connected with described web member (31) thread fit, the link position of adjusting connector (31) and anchoring part (2) is to predetermined position;
3. the anchored end of anchoring part (2) is inserted in the hole filling anchoring glue (5) in a rotative pattern, until fixing pole (33) contacts with mortar surface layer (1), after regulating the surface-normal that screw rod (34) makes anchoring part (2) and mortar surface layer (1), fastening piece (4) is adopted to be affixed on mortar surface layer (1) by fixing pole (33);
4. solidify rear removal of fastener (4) until anchoring glue (5), dismantle adjustable positioning component (3);
5. drawing instrument drawing anchoring part (2) is adopted, and the intensity of mortar surface layer (1) is detected by the pulling out method based on routine.
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| CN108776061A (en) * | 2018-08-03 | 2018-11-09 | 中震（北京）工程检测股份有限公司 | A kind of the auxiliary positioning fixed-point apparatus and its construction method of Testing Compressive Strength of Masonry Mortar by Penetration Resistance |
| CN110553901B (en) * | 2019-09-19 | 2024-05-14 | 湖南大学 | Anchor assembly complete device for detecting strength by post-loading and pull-out method and detection method |
| CN118857948A (en) * | 2024-07-08 | 2024-10-29 | 浙江浙浦建设有限公司 | Anchoring device for testing mortar surface strength |
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