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英文原文：

Concrete structure reinforcement design

SheyanboⅠ WangchenjiaⅡ

Ⅰ Foundation Engineering Co., Ltd. Heilongjiang Dongyu

Ⅱ Heilongjiang Province, East Building Foundation Engineering Co., Ltd. Coal

Abstract：structure in the long-term natural environment and under the

use environment's function, its function is weaken inevitably gradually,

our structural engineering's duty not just must finish the building

earlier period the project work, but must be able the science appraisal

structure damage objective law and the degree, and adopts the effective

method guarantee structure the security use, that the structure

reinforcement will become an important work. What may foresee will be the

21st century, the human building also by the concrete structure, the steel

structure, the bricking-up structure and so on primarily, the present

stage I will think us in the structure reinforcement this aspect research

should also take this as the main breakthrough direction.

Key word ： Concrete structure reinforcement bricking-up structure

reinforcement steel structure reinforcement

1 Concrete structure reinforcement

Concrete structure's reinforcement divides into the direct

reinforcement and reinforces two kinds indirectly, when the design may

act according to the actual condition and the operation requirements

choice being suitable method and the necessary technology.

1.1the direct reinforcement's general method

1Enlarges the section reinforcement law

Adds the concretes cast-in-place level in the reinforced concrete

member in bending compression zone, may increase the section effective

height, the expansion cross sectional area, thus enhances the component

right section anti-curved, the oblique section anti-cuts ability and the

section rigidity, plays the reinforcement reinforcement the role.

In the suitable muscle scope, the concretes change curved the

component right section supporting capacity increase along with the area

of reinforcement and the intensity enhance. In the original component

right section ratio of reinforcement not too high situation, increases

the main reinforcement area to be possible to propose the plateau

component right section anti-curved supporting capacity effectively. Is

pulled in the section the area to add the cast-in-place concrete jacket

to increase the component section, through new Canada partial and original

component joint work, but enhances the component supporting capacity

effectively, improvement normal operational performance.

Enlarges the section reinforcement law construction craft simply,

compatible, and has the mature design and the construction experience;

Is suitable in Liang, the board, the column, the wall and the general

structure concretes reinforcement; But scene construction's wet

operating time is long, to produces has certain influence with the life,

and after reinforcing the building clearance has certain reduction.

2 Replacement concretes reinforcement law

This law's merit with enlarges the method of sections to be close,

and after reinforcing, does not affect building's clearance, but similar

existence construction wet operating time long shortcoming; Is suitable

somewhat low or has concretes carrier's and so on serious defect Liang,

column in the compression zone concretes intensity reinforcement.

3 the caking outsourcing section reinforcement law

Outside the Baotou Steel Factory reinforcement is wraps in the section

or the steel plate is reinforced component's outside, outside the Baotou

Steel Factory reinforces reinforced concrete Liang to use the wet

outsourcing law generally, namely uses the epoxy resinification to be in

the milk and so on methods with to reinforce the section the construction

commission to cake a whole, after the reinforcement component, because

is pulled with the compressed steel cross sectional area large scale

enhancement, therefore right section supporting capacity and section

rigidity large scale enhancement.

This law also said that the wet outside Baotou Steel Factory

reinforcement law, the stress is reliable, the construction is simple,

the scene work load is small, but is big with the steel quantity, and uses

in above not suitably 600C in the non-protection's situation the high

temperature place; Is suitable does not allow in the use obviously to

increase the original component section size, but requests to sharpen its

bearing capacity large scale the concrete structure reinforcement.

4 Sticks the steel reinforcement law

Outside the reinforced concrete member in bending sticks the steel

reinforcement is right section is pulled in the component supporting

capacity insufficient sector area, right section compression zone or

oblique section the superficial glue steel plate, like this may enhance

is reinforced component's supporting capacity, and constructs

conveniently.

This law construction is fast, the scene not wet work or only has the

plastering and so on few wet works, to produces is small with the life

influence, and after reinforcing, is not remarkable to the original

structure outward appearance and the original clearance affects, but the

reinforcement effect is decided to a great extent by the gummy craft and

the operational level; Is suitable in the withstanding static function,

and is in the normal humidity environment to bend or the tension member

reinforcement.

5 Glue fibre reinforcement plastic reinforcement law

Outside pastes the textile fiber reinforcement is pastes with the

cementing material the fibre reinforcement compound materials in is

reinforced the component to pull the region, causes it with to reinforce

the section joint work, achieves sharpens the component bearing capacity

the goal. Besides has glues the steel plate similar merit, but also has

anticorrosive muddy, bears moistly, does not increase the self-weight of

structure nearly, durably, the maintenance cost low status merit, but

needs special fire protection processing, is suitable in each kind of

stress nature concrete structure component and the general construction.

This law's good and bad points with enlarge the method of sections

to be close; Is suitable reinforcement which is insufficient in the

concrete structure component oblique section supporting capacity, or must

exert the crosswise binding force to the compressional member the

situation.

6 Reeling law

This law's good and bad points with enlarge the method of sections

to be close; Is suitable reinforcement which is insufficient in the

concrete structure component oblique section supporting capacity, or must

exert the crosswise binding force to the compressional member the

situation.

7 Fang bolt anchor law

This law is suitable in the concretes intensity rank is the C20~C60

concretes load-bearing member transformation, the reinforcement; It is

not suitable for already the above structure which and the light quality

structure makes decent seriously.

1.2 The indirect reinforcement's general method

1) Pre-stressed reinforcement law

1Thepre-stressed horizontal tension bar reinforces concretes member

in bending,because the pre-stressed and increases the exterior load the

combined action, in the tension bar has the axial tension, this strength

eccentric transmits on the component through the pole end anchor , when

tension bar and Liang board bottom surface close fitting, tension bar can

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