نتایج جستجو برای: reinforcement concrete structure

تعداد نتایج: 1669172  

Journal: :journal of rehabilitation in civil engineerin 0
mostafa sadeghnejad ph.d. candidate, faculty of civil engineering, semnan university, semnan, iran. gholamali shafabakhsh professor, faculty of civil engineering, semnan university, semnan, iran.

asphalt modification/reinforcement has received considerable attention as viable solutions to enhance flexible pavement performance. this is mainly prompted by the unsatisfactory performance of traditional road materials exposed to dramatic increases and changes in traffic patterns. this paper presents the evaluation of fatigue behaviour of nano reinforced stone mastic asphalt mixtures. fatigue...

2016
Xiaolin Zhang Xuebing Liang Zeqiang Wang Hancheng Huang Haijun Zhou

This paper studied the effects of reinforcement corrosion on bond performance between rebar and concrete. Tests were carried out to evaluate the degradation of bond between reinforcing steel and concrete for different corrosion levels of reinforcing steel. A series of 20 specimens of different concrete strength with various reinforcing steel corrosion levels were designed and manufactured. Each...

2012
D. A. Koleva

Next to water, concrete is the most used material on earth. Reinforced concrete has the potential to be durable and capable of withstanding a variety of adverse environmental conditions. One of the major difficulties in the engineering practice, however, is the multidimensional nature of reinforcement corrosion related issues. Nevertheless, materials and processes involved in the service life o...

2016
Jongho Park

Recently, the abnormal climate phenomenon has enlarged due to the global warming. As a result, temperature variation is increasing and the term is being prolonged, frequency of high and low temperature is increasing by heat wave and severe cold. Especially for reinforced concrete structure, the corrosion of reinforcement has occurred by concrete crack due to temperature change and the durabilit...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی عمران 1383

در این پژوهش ابتدا مروری بر تحقیقات گذشتگان با موضوع تاثیر خوردگی آرماتور بر رفتار سازه های بتن مسلح صورت می پذیرد. همانطور که مشخص است از مهمترین تبعات منفی پدیده خوردگی آرماتور در سازه های بتن مسلح خرابی پیوستگی فولاد و بتن می باشد به همین دلیل یک مدل جدید برای سخت شوندگی کششی بتن معرفی می شوند این مدل می تواند اثرات رفتار لغزش –پیوستگی و خوردگی آرماتور را در برگیرد مدل پیشنهادی منحنی تنش کرن...

2003
K. M. HOLFORD R. PULLIN

Currently in the United Kingdom there are over 100 bridges containing hinge joint components, introduced to simplify and standardise designs. Visual inspection of hinge joints noted bridge deck waterproofing failure, which can cause steel reinforcement bar corrosion. This reinforcement is crucial to the integrity of the joint, and the loss of reinforcement section can induce higher stresses lea...

Journal: :iranian journal of environmental sciences 0
gholamreza asadollahfardi civil engineering department, kharazmi university, tehran, iran azadeh panahandeh civil engineering department, kharazmi university, tehran, iran amir ali khalvati civil engineering department, kharazmi university, tehran, iran ali sekhavati civil engineering department, kharazmi university, tehran, iran

transportation is an important part of modern community life as well as one of the largest sources of greenhouse gas emissions in urban communities, the population growth of which can increase transportation capacity. monorail systems are relatively new rail transportation systems which are currently being designed and constructed in different countries. we have applied the intergovernmental pa...

Partially Encased Composite (PEC) column is one of the recent achievements in the field of composite columns. This paper presents a combined experimental and theoretical study on the mechanical performances of six octagonal PEC columns subjected to axial compressive and bending moment loading. The major different between them was the concrete reinforcement details. The parameters studied in the...

Journal: Pollution 2017

Transportation is an important part of modern community life as well as one of the largest sources of greenhouse gas emissions in urban communities, the population growth of which can increase transportation capacity. Monorail systems are relatively new rail transportation systems which are currently being designed and constructed in different countries. We have applied the Intergovernmental Pa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم و فنون مازندران 1386

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