Full–Scale Pull–Down Tests on a Two–Storied Rammed Earth Building with Possible Strengthening Interventions

Kshitij C. Shrestha, Takayoshi Aoki, Takaaki Konishi, Mitsuhiro Miyamoto, Jingyao Zhang, Noriyuki Takahashi, Phuntsho Wangmo, Takumi Aramaki, Noboru Yuasa

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)

Abstract

This paper reports pull–down tests performed on full–scale two–storied rammed earth (RE) buildings to assess the out–of–plane performance of RE construction in Bhutan. An innovative strengthening technique is also proposed for strength enhancement of the RE walls. The tests involved two types of specimens, an unreinforced RE structure and an identical reinforced counterpart. The pull–down load was applied on top of the facade. The strengthening strategy involved reinforced concrete sections of dowels and wedges inserted between the RE blocks at regular intervals. The wooden floor beams at the first–floor level were also anchored to the RE blocks in the reinforced specimen. Micro–tremor measurements of the structures were done prior to the pull–down tests. A maximum of 59% increment in peak pull–down load was observed for the reinforced RE specimen compared to its unreinforced counterpart. The unreinforced RE wall showed damage to a larger area of façade, whereas, the reinforced RE specimen showed damage to a relatively smaller zone with controlled failure mechanism.

Original languageEnglish
Title of host publicationRILEM Bookseries
PublisherSpringer Netherlands
Pages1557-1565
Number of pages9
DOIs
Publication statusPublished - 2019 Jan 1

Publication series

NameRILEM Bookseries
Volume18
ISSN (Print)2211-0844
ISSN (Electronic)2211-0852

Keywords

  • Micro–tremor measurements
  • Out–of–plane failure
  • Pull–down tests
  • Rammed earth
  • Strengthening interventions

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials

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