Reinforcing bars for strengthening columns

Project overview

The 600X600 column changed into a 700X700 column under the ground floor of the kindergarten, and the concrete has been poured on the basis of the base platform concrete, and some concrete columns have been poured. According to the treatment map of the underground column of the Kindergarten under the Design Institute, the 600X600 columns that have been built into the 600X700 column or the 700X700 column need to be implanted in the base platform. 22 or 25 reinforcement, the depth of implantation is not less than 15d, for the whole column concrete has been poured into the 600X600 column to the 600X700 column to be implanted 22 or 25 steel in the base platform, the depth is not less than 15d, then the column face is chiseled, and then the 12 U type stirrup is implanted into the depth of 12CM.

Strengthening method

Reinforcing bars for strengthening columns

Strengthening materials

HM-500 anchoring adhesive

Why choose reinforceing bars strengthening?

1.It is beneficial to guarantee the quality of construction and improve the speed of construction

After using the method of planting reinforcement, the process of making up the quality of the concrete surface is avoided, which not only ensures the quality of the construction, but also simplifies the construction procedure, reduces the labor intensity of the workers and improves the construction speed. This makes our company deliver high quality works to the owners in the shortest time. In conclusion, considering the construction quality, construction speed, site safety, civilized construction and many other factors, planting bar is the most reasonable scheme that can be adopted in this project.

2.Feasibility of planting reinforcement

The corrosion resistance, aging resistance and bond strength of the bonded structure material are far greater than the strength of concrete, and the curing speed is fast, which can make the steel implant bear external force as soon as possible. At present, it has been widely used in engineering treatment, such as enlarging foundation, adding layer, connecting new and old concrete, leaking steel bar, joint reinforcement of joint and adding beam and adding column.

3.Influence of rebar planting in this project on column and foundation platform

1)The probability of planting bar drill is very low.

2)Drilling depth and borehole diameter are smaller than those of column section.

3)The diameter of planting bar is 25mm and the diameter of rotary hole is 28mm, which is negligible for column section and bearing platform section size.