Structural Characterisation of the Failed Manafwa Historic Bridge in Uganda
Onchiri, Richard Ocharo
MetadataShow full item record
A visual inspection was carried out on thetwo-spanManafwa River Bridge along Mbale - Tororo Road to assess the extent of damage caused by traffic to the bridge superstructure. The superstructure slab developed a hole between two longitudinal steel beams located adjacent to the carriageway centreline on the Mbale bound lane on the Tororo span. At the time of inspection, the maximum length of opening parallel to traffic flow direction was 2530mm and was 1350mm in the normal direction. There is noticeable cracking of the deck surfacing at acorresponding location on the Mbale span. This report has a detailed analysis of the superstructure and the proposed research undertaken entailed the structural characterisation survey of the Manafwa Bridge which has recently shown signs of failure and for structural integrity comparisons evaluated using a finite element analysis method, ANSYS. In summary, the existing slab needs top reinforcement to resist hogging moments over longitudinal beams and at cantilever footwalk edges. The existing bottom reinforcement is adequate for sagging moments and punching shear requirements. The shear capacity of the longitudinal steel beams is satisfactory and can sustain loads greater than the combination of HA and HB37.5.
Showing items related by title, author, creator and subject.
Technical University of Mombasa (2015-03-10)Faculty of Engineering and Technology DEPARTMENT BUILDING AND CIVIL ENGINEERING UNIVERSITY EXAMINATIONS FOR DEGREE IN BACHELOR OF SCIENCE IN CIVIL ENGINEERING ECE 2307: THEORY OF STRUCTURES III
FACTORS CAUSING STRUCTURAL FAILURE OF THE FLEXIBLE PAVEMENT ALONG TIMBOROA TO MALABA ROAD IN KENYA Onchiri, Richard Ocharo (International Journal of Civil Engineering and Technology (IJCIET), 2016)Transportation infrastructure plays a vital role in the economic and social development of any country and this role cannot be underestimated. The impact of growth and prosperity achieved in the transportation sector extends ...
454 Pyrosequencing-based assessment of bacterial diversity and community structure in termite guts, mounds and surrounding soils Makonde, Huxley Mae; Mwirichia, Romano; Osiemo, Zipporah; Boga, Hamadi Iddi; Klenk, Hans-Peter (SpringerOpen, 2015)Termites constitute part of diverse and economically important termite fauna in Africa, but information on gut microbiota and their associated soil microbiome is still inadequate. In this study, we assessed and compared ...