Abstract
Structural assessment of existing old constructions under gravity loads has a high social and economic effect. In many countries around the world, most of the buildings date back to 1960s and 1970s and cannot ensure satisfactory seismic response, since many areas have been later classified as seismic or their design have been carried out according to obsolete codes. These structures are generally reinforced with smooth bars that exhibit poor bonds and need specific anchoring end details. In the present paper, some key aspects of structural models of old-type masonry building analysis are reported. The paper consists of a general description of the building, the results of in-situ survey and inspection, field observation records, structural investigation, determination of the mechanical and physical properties of the used constructional materials. It will also include the engineering structural analyses, assessment of its performance for gravity and seismic loads. Finally, our findings and recommendations are regarding its structural performance, behavior under prevailing conditions, new loads applied resulting from additional new steel structure floor and remedial measures approaches to improve the structural system for resisting the applied loads. The structural analysis will be provided in a separate report.
Highlights
Studies nowadays are directed to the conservation and restoration of historical structures that have recourse to structural analysis as a way to better understand the genuine structural features of the building, to characterize its present condition and actual causes of existing damage, to determine the true structural safety for a variety of actions, gravity, soil settlements, wind and earthquake and to conclude on necessary remedial measures
This paper presents results of our inspection and structural evaluation carried out for Old building located in Bethlehem City, Palestine
Repairs and rehabilitation works should include the followings: 1) The flexural crack appeared in the northern-east wall should be treated by re-pointing the stone joints
Summary
Studies nowadays are directed to the conservation and restoration of historical structures that have recourse to structural analysis as a way to better understand the genuine structural features of the building, to characterize its present condition and actual causes of existing damage, to determine the true structural safety for a variety of actions, gravity, soil settlements, wind and earthquake and to conclude on necessary remedial measures. Structural analysis contributes to all the phases and activities (including diagnosis, reliability assessment and design of intervention) oriented to grant an efficient and respectful conservation of monuments and historical buildings. The difficulties posed by historical structures are still very challenging, and still reminiscent of those encountered by the pioneers, in spite of significant progress during the last decades. Some of difficulties encountered are related to the description of geometry, materials and actions, all of which acquire remarkable singularity in the case of historical construction
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