Vertical prestress rammed earth wall and construction method thereof

Abstract

Provided are a vertical prestress rammed earth wall and a construction method thereof. The rammed earth wall comprises a wall foundation, a rammed earth body and a vertical prestress applying structure. The vertical prestress applying structure comprises two structure columns, a plurality of sets of prestress components and a capping beam. The two structure columns are fixedly connected with the wall foundation through embedded bolts which are located at the two ends of the wall foundation and used for connecting the two structure columns. The capping beam is arranged at the position, between the two structure columns, of the top of the rammed earth wall and fixedly connected with the structure columns. Each set of prestress component comprises a foundation connecting piece, an outer casing pipe and a prestress steel bar, wherein the foundation connecting piece is fixedly connected with the wall foundation through an embedded bolt which is located on the wall foundation and used for corresponding prestress connection; the lower end of the prestress steel bar is fixedly connected with the corresponding foundation connecting piece, and the upper end of the prestress steel bar penetrates through the capping beam and a steel cushion plate at the upper end of the capping beam to be fixedly connected with the capping beam; and the outer casing pipe is arranged outside the prestress steel bar in a sleeving mode. The rammed earth body is rammed among the structure columns at the two ends, the wall foundation and the capping beam. According to the vertical prestress rammed earth wall and the construction method thereof, the shear-resistant strength between rammed earth layers is enhanced, and the integrality of the wall is improved.

Description

Technical field [0001] The invention belongs to the technical field of civil engineering green soil building reinforcement, and particularly relates to a vertical prestressed rammed earth wall and a construction method thereof. Background technique [0002] Traditional rammed earth buildings have the advantages of low cost, simple construction process, and good thermal insulation performance. They are typical green buildings. However, because the traditional rammed earth wall construction technology usually adopts layer-by-layer compaction, the bonding force at the layered area is low, and the failure mode is similar to the shear failure at the horizontal mortar joint of the masonry structure. Therefore, rammed earth walls are prone to shear failure due to insufficient shear resistance of the layered area under the action of horizontal seismic forces. How to improve the shear resistance between layers has become an important direction for the improvement of rammed earth structure...

AI Technical Summary

Problems solved by technology

[0003] In order to improve the shear performance between the layers of the wall, horizontal shear connectors are usually installed at the rammed layers, but the shear effect is not significant due to the small bite force between the shear connectors and the rammed soil of the upper and lower layers

Images