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Assessment of Existing Reinforced Concrete Slab and Reinforcing Methods

Author: LiLianLian
Tutor: ZuoXiaoGuang
School: Chang'an University
Course: Bridge and Tunnel Engineering
Keywords: Reinforced Concrete Slab Technology Assessment Reinforcement Bending ultimate bearing capacity Engineering Applications
CLC: U445.72
Type: Master's thesis
Year: 2007
Downloads: 104
Quote: 1
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Abstract


With the development of national economy , a sharp increase in road transport , roads and bridges increasingly harsh negative emphasis, coupled with aging and other reasons , making the operation of the bridge diseases continue to emerge. In the construction of roads and bridges , the design specification also has a new development , a lot of bridges in the new active duty under the standard specification , carrying capacity is low , but due to the bridge linear constraints ( left high and longitudinal ) bridges using functions declined , and some serious bridge has affected the normal use of the urgent need to transform the reinforcement. Reinforced concrete on our highways Itabashi huge number , but a considerable number of poor technical condition of the existing bridge , the urgent need to transform the reinforcement. In this paper, on the basis of existing research results , based on \analysis of the reinforced concrete slab bridge bonded steel , carbon fiber and reinforced laminate bending force the whole process , and focus on comparing the structure of secondary load on the structure. Rehabilitation and Strengthening of bridge slope aspect when thickened pavement after fitting case made ??of CFRP ( steel ) and laminated layer structure joint reinforcement reinforcement method , and carried out based on reinforcement before the original structure of the bridge dead load commitment to establish reinforced bearing capacity calculation model . Based on a renovation and expansion project ( two roads to highways ) as an engineering example , for a typical reinforced concrete Itabashi carried out comprehensive testing and bridge the technical evaluation of the current situation ; adopt new specifications of highway bridges and culverts (JTGD62- 2004 ) , and \Reinforced through the load test and field test results based on an assessment of the bridge , it is proved Rehabilitation and Strengthening of measures taken to improve the bearing capacity and service life of the bridge , resulting in a good economic benefits. Thus for the future construction of similar bridges transformation reinforcement accumulate experience and provide a reference .

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CLC: > Transportation > Road transport > Bridges and Culverts > Bridge Construction > Bridge maintenance, repair and remediation > Bridge strengthening
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