Brick-wrapped city wall site anchoring structure based on EBTP anchor rod

Abstract

The invention discloses a brick-wrapped city wall site anchoring structure based on an EBTP anchor rod. The brick-wrapped city wall site anchoring structure comprises the EBTP anchor rod and a brick-wrapped wall body, wherein a steel bar penetrates through a phyllostachys pubescens pipe; the length of the steel bar is larger than that of the phyllostachys pubescens pipe; the steel bar penetrates through the phyllostachys pubescens pipe section and extends into a rammed earth inner anchoring section of a city wall; the steel bar extends out of the phyllostachys pubescens pipe section and extends into a brick-wrapped inner anchoring section; the steel bar penetrates out of the outer end face of the brick-wrapped wall body and is fixed to an anchor plate through a bolt; and an expanded anchorjoint is arranged in the middle section of the steel bar in the phyllostachys pubescens pipe and positioned between a pressure bearing section and a tension section of the brick-wrapped wall body. Bymeans of conversion of multiple force transmission modes, the critical anchoring length is multiplied, the ultimate uplift bearing capacity is greatly improved, and the structure can meet the anchoring requirements of large rammed earth site structures such as the brick-wrapped city wall and the rammed earth city wall.

Description

technical field [0001] The invention belongs to the technical field of reinforcement and protection of rammed earth building ruins, and particularly relates to an anchoring structure of brick-clad city wall ruins based on an EBTP anchor rod, which is used to enhance the stability and earthquake resistance of large rammed earth ruin structures such as brick-clad city walls. Background technique [0002] As a typical historical architectural relic with a large scale, a huge stock and a wide distribution in my country, the brick-clad city wall embodies the superb architectural concept and exquisite construction skills of the ancients. Scientific significance and social value. Brick-covered city walls are mainly composed of rammed earth inside and brick-covered outside. Because they were mostly used for military defense in ancient times, they are usually tall and tall. However, the ductility of the internal rammed earth and external brick-covered materials is poor, and the streng...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the above-mentioned defects existing in the prior art, the object of the present invention is to provide a kind of expansion type bamboo reinforcement tension-compression composite anchor (hereinafter referred to as: EBTP) that is suitable for large-scale rammed earth ruins such as city walls (especially brick-clad city wall ruins). Anchor structure of brick-clad city wall ruins, which solves the poor durability and compatibility of existing metal anchors, while natural bamboo and wood anchors have low pull-out bearing capacity and concentrated stress at the anchoring interface, which may easily lead to insufficient anchoring force or local overshooting of the ruins. premature damage

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