1887

n Journal of the South African Institution of Civil Engineers - Structural aspects of labour-intensively constructed, uncut stone masonry arch bridges : technical paper

Volume 37, Issue 3
  • ISSN : 1021-2019
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Abstract

A labour-intensive technique for constructing arch bridges using uncut stones and mortar was recently used very effectively. However, at present little is known about the strength and behaviour of the material or the structural form. This paper considers other work that has been done to define the information required to quantify the structural performance. A pilot study is described, in which large size cube tests were used to measure the compressive strength of the stone-mortar matrix. This indicated that the composite strength is lower than the mortar strength, and also that the orientation of the stones is important. A method of measuring the live-load induced stresses in these structures is described and the measured stresses are discussed. Finally, an outline is sketched of further research being undertaken.

Onlangs is 'n brugboutegniek wat staatmaak op arbeidsintensiewe gebruik van ruwe klip en mortel om boogbrue op te rig, suksesvol toegepas. Daar is egter te min inligting oor die sterkte of gedrag van of die materiaal of die ontwerp beskikbaar. Hierdie referaat ondersoek wat reeds gedoen is om die vereiste inligting te defineer wat betrekking sou hr op die strukturele gedrag van so 'n brug. 'n Voorlopige studie waarin groot betonblokke gebruik is om die druksterkte van 'n klip/mortel-matriks te bepaal, word beskryf. Hieruit word afgelei dat die saamgestelde sterkte laer is as die van die mortel en dat die orientasie van die klip belangrik is. 'n Tegniek waardeur die stres, agv toegevoegde las, gemeet kan word, word beskryf en die gemete stres word bespreek. Verder word toekomstige navorsing in hierdie verband beskryf.

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/content/civileng1/37/3/EJC26766
1995-01-01
2016-12-11

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