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Super-long concrete structure crack control method and structure

A concrete structure and control method technology, which is applied to building components, building structures, wine cellars, etc., can solve problems such as uncoordinated deformation of components, and achieve the effects of improving constraints, reducing temperature stress, and alleviating cracking

Inactive Publication Date: 2019-09-10
王伟
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  • Claims
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Problems solved by technology

[0003] The present invention provides a method and structure for controlling cracks in super-long concrete structures to solve the problem of uncoordinated deformation between different components caused by non-uniform heating inside the structure in the prior art proposed in the above-mentioned background technology

Method used

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  • Super-long concrete structure crack control method and structure
  • Super-long concrete structure crack control method and structure

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Embodiment

[0024] This embodiment: as figure 1 As shown, a method for controlling cracks in super-long concrete structures, the method includes releasing the partial constraint S2 of the base plate 2 through the unbonded prestressing technology S1.

[0025] Due to the use of unbonded prestressing technology to release part of the constraints of the foundation floor, due to the use of unbonded prestressing technology to control the cracking of super-long concrete structures, different sizes of prestress are applied to different directions of the structure to control temperature stress. The deformation characteristics and internal force changes of the structure under the action of uniform seasonal temperature difference are analyzed, and the "breathable" system is proposed to control the cracks of the super-long concrete structure. When the partial restraint of the bottom plate is released, the structure can expand and contract freely under the action of temperature shrinkage, and the temp...

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Abstract

The invention belongs to the technical field of super-long concrete structure crack control, particularly relates to a super-long concrete structure crack control method, and meanwhile, the inventionfurther provides a super-long concrete structure crack control structure. Through an unbounded pre-stressing technology, parts of restraint of a foundation bottom plate is released. Through the super-long concrete structure crack control method and structure, the problem that in the prior art, uncoordinated deformation between different components is caused by non-uniform heating in the structureis solved, and the super-long concrete structure crack control method and structure have the beneficial and technical effects that through temperature stress control, cracking of concrete due to the excessive temperature stress effect is effectively relieved, and temperature stress of the bottom plate is effectively lowered.

Description

technical field [0001] The invention belongs to the technical field of super-long concrete structure crack control, and in particular relates to a super-long concrete structure crack control method, and at the same time, the invention also provides a super-long concrete structure crack control structure. Background technique [0002] There are generally several reasons for cracks: temperature difference, use of prestressed concrete, uneven settlement, and shrinkage of prestressed concrete. Super-long concrete structures are widely used in industrial and civil buildings. For the crack control of super-long concrete, the temperature stress is released by permanent expansion joints or construction joints. With the development of modern architecture, super-long concrete is used more and more in engineering, and architects have higher and higher requirements for the length of concrete structures without joints. When the structure deforms, different structures, The internal part...

Claims

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Application Information

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IPC IPC(8): E04B1/00E04B1/16E04B1/343
CPCE04B1/0007E04B1/16E04B1/34352
Inventor 王伟张森林王琪
Owner 王伟
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