Prestressed steeling reinforcement method for concrete column

Abstract

The invention provides a kind of prestress steeling reinforcement method for a kind of concrete pile, the method includes following steps: (1) construction preparing; (2) surface preprocess; (3) sets pile corner reinforcing steel and uses clamp to fix them; (4) heats and stretch-draw the banding board, then welds and fixes; (5) pours with high intensity adhesive material between the steel angle and the intervals among the piles; (6) checking; (7) restores the outer decoration layer. The invention uses the improvement of intensity and deformation performance in condition of three-axis pressed to upgrade the bearing of component, it doesn't increases the cross section, thus it won't affect the visible effect in the room; reduces the stress delaying effect. The shake resisting grade is upgraded, the cost is low.

Description

technical field [0001] The invention relates to the structural engineering of the discipline of civil engineering, in particular to the reinforcement method of prestressed steel-clad concrete columns. Background technique [0002] The detection, identification, reinforcement and renovation of existing buildings is a relatively new subject field. With the development of my country's construction industry and modern science and technology, this new subject has attracted attention from all aspects and has achieved exceptionally rapid development. In the future, the social demand for this subject will continue to increase, further demonstrating its importance and urgency. A large number of projects built in Guangdong and even the whole country during the period of great development will gradually enter the middle and old age. There is a great demand for the detection, appraisal, reinforcement and transformation of such buildings, and this field will gradually become an increasing...

AI Technical Summary

Problems solved by technology

When strengthening the column with the ordinary clad steel reinforcement method, some special measures must be taken to strengthen the connection between the upper and lower ends of the reinforced angle steel at the four corners of the column and the beam-column joints or foundations to ensure that the angle steel can effectively share the later load of the structure, and the upper structure passes through the end joints The setting of the connection structure directly transmits the load to the angle steel, so that the angle steel is stressed, and the angle steel acts in reverse to give a concentrated force to the structure, and the concrete is locally compressed. It can be seen that the reliability of the end connection must be satisfied at the same time to achieve the reinforcement effect, and engineering practice is very common. It is difficult to achieve the expected purpose. In fact, the current so-called Baotou reinforcement is just to install a "steel structure sleeve" for the column, which may be harmful to improve the safety and reliability of the structure and components.

In addition, for the ordinary clad steel reinforcement method, especially when the stress level of the original column concrete is very high or even close to or reaches the limit state, the two materials cannot reach the stress peak at the same time, and this hysteresis effect often has an adverse effect on the reinforcement effect. Seriously, if the stress of the original column is too high and the deformation is too large during construction, the stress of the pasted angle steel may always be at a low level, which cannot fully play its role and fail to achieve the intended purpose of reinforcement

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