CN-116837732-B - CFRP thin-wall high pier column construction device and method

CN116837732BCN 116837732 BCN116837732 BCN 116837732BCN-116837732-B

Abstract

The invention relates to a CFRP thin-wall high pier column construction device and a method thereof, wherein the CFRP thin-wall high pier column construction device comprises a positioning mechanism, a supporting and moving mechanism, a traction mechanism and a glue brushing and pressing mechanism, the positioning mechanism comprises an upper positioning plate, a lower winding roller and a positioning rope, the upper positioning plate is fixed at the upper part of a pier column, the lower winding roller is fixed at the lower part, the supporting and moving mechanism comprises an inner frame, an outer frame, a sliding block and a supporting frame, the sliding block is suitably arranged on the positioning rope in a matching way, the inner frame and the outer frame are correspondingly fixed at the inner side and the outer side of the sliding block, corresponding through holes are formed below the inner frame and the outer frame, the glue brushing and pressing mechanism comprises a pressing roller, a glue brushing roller, a limiting roller, a glue hopper and a positioning wheel, the upper part and the lower part of the inner frame are correspondingly provided with the pressing roller, the glue brushing roller and the glue hopper, and a glue brushing gap is formed between the limiting roller and the glue brushing roller.

Inventors

MENG QINGXIN
LU HAILU
Cheng Chengzhao
ZENG FENGJUAN
HU BIN
YAN YAZHAO
SHEN SHIHAO

Assignees

中国建筑第七工程局有限公司
中国建筑股份有限公司

Dates

Publication Date: 20260508
Application Date: 20230703

Claims (10)

1. The CFRP thin-wall high pier column construction device is characterized by comprising a positioning mechanism, a supporting and moving mechanism, a traction mechanism and a brushing and pressing mechanism, wherein the positioning mechanism comprises an upper positioning plate, a lower winding roller and a positioning rope, the upper positioning plate is fixed on the upper part of the pier column, the lower winding roller is fixed on the lower part and is in transmission connection with a winch, the positioning rope is vertically arranged, the upper end of the positioning rope is fixed on the upper positioning plate, and the lower end of the positioning rope is wound on the lower winding roller; The support moving mechanism comprises an inner frame, an outer frame, a sliding block and a supporting frame, wherein the sliding block is adaptively arranged on a positioning rope and can slide along the positioning rope, the inner frame and the outer frame are correspondingly fixed on the inner side and the outer side of the sliding block, and corresponding through holes are formed in the lower positions of the inner frame and the outer frame; The traction mechanism comprises a guide wheel, a traction rope and a driving wheel, wherein two ends of the traction rope are fixed on the outer frame, the guide wheel and the driving wheel are arranged on the inner side of the traction rope, and the driving wheel is in transmission connection with a driving motor; The rubber brushing and pressing mechanism comprises a pressing roller, a rubber brushing roller, a limiting roller, a rubber hopper and a positioning wheel, the pressing roller and the positioning wheel are correspondingly arranged on the upper portion and the lower portion of the inner frame, the two wheels are located on the same plane, the limiting roller, the rubber brushing roller and the rubber hopper are further fixed in the middle area of the inner frame, the rubber hopper is used for supplying rubber for the rubber brushing roller, and a rubber brushing gap is formed between the limiting roller and the rubber brushing roller.
2. The CFRP thin-wall high pier column construction device according to claim 1, wherein the positioning ropes are correspondingly provided with at least two sliding blocks, the sliding blocks are correspondingly arranged with the positioning ropes one by one, the middle parts of the sliding blocks are provided with sliding holes matched with the positioning ropes, and the positioning ropes are sleeved in the sliding holes.
3. The CFRP thin-wall high pier column construction device of claim 1, wherein a plurality of supporting seats are arranged on the supporting frame, and the through holes correspond to discharging positions of the supporting seats.
4. The CFRP thin-wall high pier column construction device of claim 1, wherein the rubber hopper is positioned obliquely above the outer side of the rubber brushing roller, a feeding head which is inclined towards the side wall of the rubber brushing roller is arranged at the lower part of the rubber brushing roller, and the feeding head is contacted with the outer wall of the rubber brushing roller.
5. The CFRP thin-wall high pier column construction device according to claim 4, wherein a receiving hopper is arranged at the lower part of the inner frame, and the rubber brushing roller is fixed at the upper part or the side surface of the receiving hopper through a bracket.
6. The CFRP thin-wall high pier column construction device of claim 1, wherein the rubber hopper is positioned at the bottom of the rubber brushing roller, the lower part of the rubber brushing roller is positioned in the rubber hopper, and rubber is obtained from the rubber hopper during rotation.
7. The CFRP thin-wall high pier column construction device of claim 1, wherein the inner side of the sliding block is provided with a side plate, an adjusting mechanism is arranged between the side plate and the inner frame and comprises a sleeve, a sleeve rod, a spring and a limit sleeve, the sleeve rod is fixed on the side plate, the sleeve rod is fixed on the inner frame, a spring seat is arranged at the bottom of the sleeve rod, the spring is arranged between the sleeve seat and the bottom of the sleeve, the limit sleeve is in threaded connection on the sleeve rod, an outer limit table is arranged at the lower part of the limit sleeve, an inner limit table is arranged on the outer wall of the sleeve, the inner limit table is propped against the outer limit table, and then a soft elastic support is formed between the inner frame and the side plate.
8. The CFRP thin-wall high pier column construction device of claim 1, wherein a side plate is arranged on the outer side of the sliding block, an adjusting mechanism is arranged between the side plate and the inner frame, the adjusting mechanism comprises a sleeve, a sleeve rod and a locking wire, the sleeve is fixed on the side plate, one end of the sleeve rod is fixed on the inner frame, the other end of the sleeve rod is sleeved in the sleeve, and the sleeve rod can be locked through the locking wire penetrating through the side wall of the sleeve, so that an adjustable rigid support is provided between the side plate and the inner frame.
9. The CFRP thin-wall high pier column construction device according to any one of claims 1 to 8, wherein the positioning wheel is fixed on the inner frame through a telescopic rod, a shaft bracket is arranged at the upper part of the inner frame, flat holes are formed in the shaft bracket, shaft seats are arranged at two ends of the driving and pressing roller, locking shafts are arranged at the outer sides of the shaft seats, and the locking shafts are sleeved in the flat holes and can be locked through locking wires arranged at the outer sides of the locking shafts.
10. A construction method of the CFRP thin-wall high pier construction device according to claim 1, comprising the steps of; Step one, cleaning and leveling the surface of a pier stud Cleaning incomplete and broken parts on the surface of the pier column, checking whether steel bars are rusted, repairing and restoring the incomplete parts of the pier column which are subjected to chiseling, cleaning and rib exposing by using epoxy mortar higher than the original components to achieve the surface flatness; Step two, polishing, cleaning and drying Polishing the surface of the pier stud, removing surface slurry and greasy dirt impurities until a new surface of the concrete structure leaks out, and then cleaning the polished surface of the pier stud to sufficiently dry the pier stud; step three, brushing primer Uniformly mixing the primer according to a proportion, coating the primer on the surface of the pier stud, and carrying out secondary leveling; Fourth, pasting construction The CFRP roller is arranged on the support frame, a CFRP sheet passes through the through hole and is clamped between the limiting roller and the rubber brushing roller, and finally the CFRP sheet is extruded and arranged between the driving roller and the pier column, and then the sliding block is driven by the traction mechanism to move up and down along the positioning rope, so that the CFRP sheet is adhered to the surface of the pier column in the moving process; step five, protecting And (3) plastering and protecting the reinforced CFRP sheet, spreading a layer of dry coarse sand before the resin on the surface of the carbon fiber is solidified, and then adopting plastering measures for protecting.

Description

CFRP thin-wall high pier column construction device and method Technical Field The invention relates to the technical field of constructional engineering, in particular to a CFRP thin-wall high pier column construction device and a CFRP thin-wall high pier column construction method. Background The double thin wall pier is a relatively common pier form of large and medium-span highway bridges in China at present, and is structurally characterized in that two mutually parallel pier walls are hinged or just connected with a girder on a pier position. The double thin wall pier is the main form of the large span rigid frame bridge pier. The anti-thrust concrete has the advantages of high anti-thrust rigidity along the bridge, small anti-thrust rigidity, capability of meeting the safety requirement in the construction process, capability of effectively reducing secondary internal force caused by temperature, concrete creep, pier displacement and the like, and wide application range. The carbon fiber composite material can be used as a high-performance multifunctional advanced composite material and can be used as a structural building material and a functional building material. Along with the breakthrough of production and process technology, the cost of the carbon fiber composite material is reduced, and the building field has great demands on the carbon fiber composite material. Although the carbon fiber composite material has the characteristics of large bearing, light weight, high strength and the like, has good mechanical property and physical property, can meet the requirements of building structures, and meets the development trend of ecological civilization construction. The CFRP reinforced concrete structure is mainly applied to reinforcing a concrete column by using an outer CFRP sheet, and the CFRP sheet can effectively restrict the lateral deformation of the concrete column so as to achieve the effect of improving the bearing capacity and the ductility of the concrete column. Based on this, it is necessary to study a CFRP thin-wall high pier construction apparatus. Disclosure of Invention In view of the above, the invention aims to provide a CFRP thin-wall high pier column construction device and a method thereof, which effectively solve the problems of single construction means, low construction efficiency and troublesome operation of the existing CFRP sheet. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the CFRP thin-wall high pier column construction device comprises a positioning mechanism, a supporting and moving mechanism, a traction mechanism and a brushing and pressing mechanism, wherein the positioning mechanism comprises an upper positioning plate, a lower winding roller and a positioning rope, the upper positioning plate is fixed on the upper part of the pier column, the lower winding roller is fixed on the lower part and is in transmission connection with a winch, the positioning rope is vertically arranged, the upper end of the positioning rope is fixed on the upper positioning plate, and the lower end of the positioning rope is wound on the lower winding roller; The support moving mechanism comprises an inner frame, an outer frame, a sliding block and a supporting frame, wherein the sliding block is adaptively arranged on a positioning rope and can slide along the positioning rope, the inner frame and the outer frame are correspondingly fixed on the inner side and the outer side of the sliding block, and corresponding through holes are formed in the lower positions of the inner frame and the outer frame; The traction mechanism comprises a guide wheel, a traction rope and a driving wheel, wherein two ends of the traction rope are fixed on the outer frame, the guide wheel and the driving wheel are arranged on the inner side of the traction rope, and the driving wheel is in transmission connection with a driving motor; The rubber brushing and pressing mechanism comprises a pressing roller, a rubber brushing roller, a limiting roller, a rubber hopper and a positioning wheel, the pressing roller and the positioning wheel are correspondingly arranged on the upper portion and the lower portion of the inner frame, the two wheels are located on the same plane, the limiting roller, the rubber brushing roller and the rubber hopper are further fixed in the middle area of the inner frame, the rubber hopper is used for supplying rubber for the rubber brushing roller, and a rubber brushing gap is formed between the limiting roller and the rubber brushing roller. Further, the locating ropes are correspondingly provided with at least two sliding blocks, the sliding blocks are correspondingly arranged with the locating ropes one by one, the middle parts of the sliding blocks are provided with sliding holes matched with the locating ropes, and the locating ropes are sleeved in the sliding holes. Further, a plurality of supporting seats are arranged on