| Today, a sharp reduction in the number of Fujian Tulu, the reason ismainly due to structural rammed earth buildings reduced carrying capacity,resulting in a collapsed building body. therefore, the overall Fujian Tulurammed axial bearing capacity of the structure of research is of greatsignificance.This paper completed the first national test of axial bearingcapacity scale model of Fujian Tulu, to fill the gaps in research relevantdomestic Tulu ramme doverall axial bearing capacity of the structure.（1）Use the status quo Tulu rammed earth construction, architecturalfeatures and the damage introduced, briefly summarizes the seven of the tuloubuilding characteristics and11kinds of bearing capacity of Failure.（2）For12representative Fujian Tulu conduct field research, select the"Rushenglou" as a test model of this paper. Three kinds of research methodsare surveys, measurements and experimental methods. Survey found that mostoften only experience building construction, both new and rammed earthhouses are a certain degree of security risks in the construction of Earthen.（3）By comparing the characteristics of both Full-scale model and scalemodel between the models, taking into account research funding, equipment,load space restrictions, designed the three wall thicknesses of90mm,120mm,150mm Earthen scale model. Performed before ramming scale model of thepre-consolidation work, try using four methods tamping, namely: directramming, oiled mold, plastic film and affixed stickers oily paper. Four kindsof ramming more comprehensive comparison method and ramming effect, thefinal decision adopted at the mold surface layer of oily paste paper workmethod for ramming Earthen scale model.（4）In order to better study the physical properties and compressionperformance of Fujian Tulu rammed earth wall, corresponding to the threeEarthen scale model produced three groups were rammed cube test block as a pilot study, and its physical properties and compression performance analysis,the compressive strength of rammed earth material, relative density, apparentdensity, water content, porosity and particle size distribution than othermaterials, performance parameters. Finally, the material properties of theoriginal test block comparing Earthen,so as Fujian Tulou rammed overallstructure of the axial bearing capacity test studies provide relevant data.（5） Program-controlled electro-hydraulic servo structure using MTStesting machine and1000kN manual hydraulic jack as loading device for threeEarthen reduced scale model of axial bearing capacity tests. Followed by thedestruction of the model to describe the process, and its experimentalphenomenon, failure characteristics were analyzed. Finally, the experimentalresults were analyzed test data, including thickness of the wall-the ultimatebearing capacity relationships and axial compression load-displacementcurve relationship. Results of this study can provide a reference for furtherresearch and other Fujian Tulou rammed earth buildings axial compressioncapacity. |
