Prestressed concrete filled steel tube tensile tie beam for preventing displacement of cushion caps and construction method

A technology of steel pipe concrete and construction methods, applied in the direction of basic structure engineering, construction, etc., can solve problems such as the displacement of the horizontal component force of the superstructure and the adverse effects of supporting inclined column building structures, so as to improve the compressive capacity, avoid adverse effects, good effect

Pending Publication Date: 2018-06-01
ZHENGZHOU UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] For building structures with large space requirements, the supporting columns are often inclined at a certain angle to the ground, and the upper structure transmits the force to the cap and pile foundation through the supporting inclined columns. When the pile layout site is limited and the ground bearing capacity is small , a small amount of pile foundations cannot balance the horizontal component force generated by the superstructure and cause relative displacement, which will adversely affect the supporting slanted columns and the superstructure

Method used

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  • Prestressed concrete filled steel tube tensile tie beam for preventing displacement of cushion caps and construction method
  • Prestressed concrete filled steel tube tensile tie beam for preventing displacement of cushion caps and construction method

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Such as figure 2 As shown, a prestressed concrete-filled steel tube tensile tie beam for preventing displacement of caps includes an outer steel tube 5, an inner steel tube 10 is coaxially arranged in the outer steel tube 5, and a prestressed steel beam is coaxially arranged in the inner steel tube 10 13. On the inner wall of the inner steel pipe 10, a first geotextile layer 11 is connected by structural glue, and a concrete protective layer 12 is poured between the first geotextile layer 11 and the prestressed steel bundle 13, and on the outer wall of the inner steel pipe 10 The second geotextile layer 9 is connected by structural glue, and the third geotextile layer 6 is connected by structural glue on the inner wall of the outer steel pipe 5. The compressive concrete layer 7 of the retractive force after the prestressed steel beam 13 is stretched.

[0019]...

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PUM

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Abstract

The invention discloses a prestressed concrete filled steel tube tensile tie beam for preventing the displacement of cushion caps. The prestressed concrete filled steel tube tensile tie beam is characterized by comprising an outer steel pipe; an inner steel pipe is coaxially arranged in the outer steel pipe; a prestressed bundled steel wire is coaxially arranged in the inner steel pipe; a first geotextile fabric layer is connected onto the inner wall of the inner steel pipe by means of a structural adhesive; a concrete protection layer is poured between the first geotextile fabric layer and the prestressed bundled steel wire; a second geotextile fabric layer is connected onto the outer wall of the inner steel pipe by means of a structural adhesive; a third geotextile fabric layer is connected onto the outer steel pipe by means of a structural adhesive; and a compressive concrete layer used for resisting retractive force generated after the prestressed bundled steel wire is tensioned ispoured between the second geotextile fabric layer and the third geotextile fabric layer. The prestressed concrete filled steel tube tensile tie beam has compression resistance; and through additionalarrangement of the compressive concrete layer outside the inner steel pipe, the compression resistance of the whole tie beam is improved, so that the horizontal displacement of the cushion caps is reduced, and the damage of a pile body is avoided.

Description

technical field [0001] The invention belongs to the technical field of construction, and in particular relates to a prestressed steel pipe concrete tensile tie beam and a method for preventing displacement of caps. Background technique [0002] For building structures with large space requirements, the supporting columns are often inclined at a certain angle to the ground, and the upper structure transmits the force to the cap and pile foundation through the supporting inclined columns. When the pile layout site is limited and the ground bearing capacity is small , a small amount of pile foundations cannot balance the horizontal component force generated by the superstructure and cause relative displacement, which in turn has an adverse effect on the supporting slanted columns and the superstructure. Contents of the invention [0003] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and propose a prestressed steel pipe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/12E02D27/14
CPCE02D27/12E02D27/14
Inventor 梁岩毛瑞敏陈淮陈佩朱任慧邓志龙
Owner ZHENGZHOU UNIV
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