Sökning: "carrying capacity"

Visar resultat 11 - 15 av 181 avhandlingar innehållade orden carrying capacity.

  1. 11. Ecostrategies in theory and practice : Farmer's perspectives on water, nutrients and sustainability in low-resource agriculture in the dry zone of Sri Lanka

    Författare :Klas Sandell; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Attitudes towards nature; Alternative development; Carrying capacity; Development strategies; Development theory; Diffusion; Dry zone of Sri Lanka; Ecodevelopment; Ethnoperspective; Fertilizers; Green revolution; Human ecology; Human geography; Low-resource agriculture; Small-scale farming; Sustainable development; Village irrigation.; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : PROBLEMThe need for a sustainable man - nature relationship has long been a neglected aspect of development theory. The increasing awareness of this negligence has led to a search for development strategies alternative to conventional industrial growth. LÄS MER

  3. 12. Evaluation of the Load Carrying Capacity of a Steel Truss Railway Bridge : Testing, Theory and Evaluation

    Författare :Jens Häggström; Hans Pétursson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Engineering; Konstruktionsteknik;

    Sammanfattning : A good deal of resources has been invested in building and maintaining existing infrastructure.Many structures are now becoming old and do not meet the requirements of an increasingtraffic load, or are reaching the end of their lifecycle. LÄS MER

  4. 13. Capacity assessment of arch bridges with backfill : Case of the old Årsta railway bridge

    Författare :Andreas Andersson; Håkan Sundquist; Raid Karoumi; Clive Melbourne; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Concrete arch bridge; soil backfill; spandrel walls; field measurements; finite element method; load distribution; ultimate limit state.; Betongbågbro; jordfyllning; sidomur; fältmätningar; finita element metoder; lastspridning; brottgränstillstånd.; Civil engineering and architecture; Samhällsbyggnadsteknik och arkitektur;

    Sammanfattning : The work presented in this thesis comprises the assessment of existing arch bridges with overlying backfill. The main objective is to estimate the load carrying capacity in ultimate limit state analysis. A case study of the old Årsta railway bridge is presented, serving as both the initiation and a direct application of the present research. LÄS MER

  5. 14. Structural Analysis of Existing RC Bridge Deck Slabs Structural Analysis of Existing RC Bridge Deck Slabs

    Författare :Jiangpeng Shu; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; load-carrying capacity; assessment; Reinforced concrete RC bridge deck slabs; structural behaviour; Finite element FE analyses;

    Sammanfattning : Due to ageing of the bridge stock, continuously increasing load requirements, the need for assessing existing bridges is becoming increasingly important. Reinforced concrete (RC) bridge deck slabs are among the most critical parts to the load carrying capacity of bridges. LÄS MER

  7. 15. Structural Effects of Reinforcement Corrosion in Concrete Structures

    Författare :Mohammad Tahershamsi; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; experiments; load-carrying capacity; anchorage; pitting; FE analysis; natural corrosion; Bond properties; damage assessment; modelling.; structural behaviour; reinforced concrete structures; 3D optical scanning; inspection;

    Sammanfattning : Reinforcement corrosion is a common cause of deterioration in reinforced concrete.The corrosion mechanism involved and the consequent structural behaviour ofdeteriorated reinforced concrete members have been studied by several researchers. LÄS MER