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Design method of assembled-type prestressed concrete cylindrical column base

A design method and technology of precast concrete, applied in basic structure engineering, construction, etc., can solve the problems of difficult control of construction temperature cracks, lengthened construction period of foundation, increase of engineering quantity, etc., achieve good bearing effect of basic structure, reduce concrete and steel bars The effect of engineering quantity and shortening construction period

Active Publication Date: 2015-06-17
POWERCHINA XIBEI ENG
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Problems solved by technology

[0003] 1. In order to bear the large eccentric load of the wind turbine, the shape of the foundation is constantly increasing, and the engineering volume is increasing sharply;
[0004] 2. For large-volume concrete poured at one time, it is difficult to control the construction temperature cracks;
[0005] 3. The foundation construction period is lengthened

Method used

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  • Design method of assembled-type prestressed concrete cylindrical column base
  • Design method of assembled-type prestressed concrete cylindrical column base
  • Design method of assembled-type prestressed concrete cylindrical column base

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Embodiment Construction

[0022] as attached figure 1 , figure 2 As shown, a design method of prefabricated prestressed concrete cylindrical column foundation, which is formed by assembling prefabricated concrete cylindrical column foundation, and then the concrete is in the In the pre-compressed state, the passive earth pressure of the soil outside the backfilled concrete of the prestressed concrete cylindrical column foundation after assembly is used to resist the load transmitted from the upper towering structure.

[0023] Assembling a prefabricated concrete cylindrical column includes a prefabricated cylindrical concrete column 1; a pre-embedded longitudinal casing 2 pre-embedded in the prefabricated cylindrical concrete column 1; extending through the pre-embedded longitudinal casing 2 to the The anchor cable 3 at the bottom end of the prefabricated cylindrical concrete cylinder 1 extends to the outside of the prefabricated cylindrical concrete cylinder 1 and connects with the high-strength conc...

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Abstract

The invention relates to a design method of an assembled-type prestressed concrete cylindrical column base. The design method is characterized in that precast concrete cylindrical columns are assembled to form a cylindrical column base, an anchor rope is anchored and then tensioned to enable the concrete to be at a prepressed state, and a load transmitted from a lofty structure at the upper part is resisted by passive soil pressure of a soil body at the outer side of backfilled concrete of the assembled prestressed concrete cylindrical column base. The design method disclosed by the invention has the characteristics of high construction speed, good quality, low cost and the like.

Description

technical field [0001] The invention belongs to the technical field of the foundation structure of towering structures in construction engineering, and relates to a design method of an assembled prestressed concrete cylindrical column foundation, which is suitable for fixing such as a tower frame of a wind power generating set. Background technique [0002] In recent years, the construction of wind power generation projects in my country is in full swing. The foundation structure supporting the tower of the wind turbine unit refers to the foundation structure of a high-rise building and adopts an extended foundation or a pile foundation. The design method is mature and the construction is convenient. Due to the particularity of repeated loads and large eccentric forces, and as the capacity of a single machine gradually increases, the limitations of conventional foundations are gradually revealed: [0003] 1. In order to bear the large eccentric load of the wind turbine, the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/42
Inventor 胡永柱李振作申宽育
Owner POWERCHINA XIBEI ENG
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