鋼筋混凝土的機械性能隨時間的變化是結構在使用壽命期間可能遭受的化學、物

鋼筋混凝土的機械性能隨時間的變化是結構在使用壽命期間可能遭受的化學、物理和環境侵蝕的結果。甚至最近，一些RC建築也受到明顯的退化跡象和隱藏缺陷的影響。在影響鋼筋混凝土結構的最常見環境攻擊中，鋼筋腐蝕被認為是最危險的降解源。在過去十年中，在兩種人工腐蝕條件下（例如彎曲載荷）對梁進行了許多測試。試驗結果表明，不僅軸承容量和延展性隨腐蝕程度的增加而顯著降低，而且在許多情況下，失效機理從延展性向脆性轉變。所有這些現象都很可能顯著影響新結構的正確設計和對現有建築的可靠評估，特別是在地震災區。事實上，如果該結構的設計具有一定程度的延展性和抗性，足以承受特定地震，則此功能可能不會隨時間變化而保持不變。腐蝕對建築物鋼筋混凝土抗震反應的影響。在一些輕度腐蝕下的案例研究中。

結果 (英文) 1:

Mechanical properties of reinforced concrete changes over time as a result of the structure may suffer during the life of the chemical, physical and environmental erosion. Even recently, some RC buildings are significantly affected signs of deterioration and hidden defects.
In the most common environmental impact of the attacks reinforced concrete structure, steel corrosion is considered the most dangerous source of degradation.
In the past decade, in both artificial corrosive conditions (eg bending load) beams were a lot of tests. The results show that not only the bearing capacity and ductility with increasing degree of corrosion and significantly reduce, and in many cases, the failure mechanism of the transition from ductile to brittle.
All these phenomena are likely to significantly affect the correct design of the new structure and reliable assessment of existing buildings, especially in the earthquake.
In fact, if the design of the structure with a certain degree of ductility and resistance enough to withstand a particular earthquake, this function may not change and remains constant over time.
Impact on the seismic response of reinforced concrete structures corrosion. In the case under some mild corrosion studies.

結果 (英文) 2:

Changes in the mechanical properties of reinforced concrete over time are the result of chemical, physical, and environmental erosion that structures may experience over their useful life. Even recently, some RC buildings have been affected by clear signs of degradation and hidden defects.
In the most common environmental attacks affecting reinforced concrete structures, rebar corrosion is considered to be the most dangerous source of degradation.
Over the past decade, beams have been tested under two artificial corrosion conditions, such as bending loads. The test results show that not only the bearing capacity and ductility decrease significantly with the increase of corrosion, but in many cases, the failure mechanism changes from ductility to brittleness.
All of these phenomena are likely to significantly affect the correct design of new structures and the reliable assessment of existing buildings, particularly in earthquake-affected areas.
In fact, if the structure is designed to be malleable and resistant enough to withstand a particular earthquake, this feature may not remain the same over time.
The effect of corrosion on the seismic reaction of reinforced concrete in buildings. In some case studies of mild corrosion.

結果 (英文) 3:

The change of mechanical properties of reinforced concrete with time is the result of the chemical, physical and environmental erosion that the structure may suffer during its service life. Even recently, some RC buildings have been affected by obvious signs of degradation and hidden defects.
Among the most common environmental attacks affecting reinforced concrete structures, corrosion of steel bars is considered to be the most dangerous degradation source.
In the past decade, many tests have been carried out on beams under two types of artificial corrosion conditions, such as bending loads. The results show that not only the bearing capacity and ductility decrease with the increase of corrosion degree, but also the failure mechanism changes from ductility to brittleness in many cases.
All of these phenomena are likely to significantly affect the correct design of new structures and the reliable evaluation of existing buildings, especially in earthquake stricken areas.
In fact, if the structure is designed with a degree of ductility and resistance that is sufficient to withstand a particular earthquake, this function may not remain constant over time.
The effect of corrosion on seismic response of reinforced concrete. In some cases of mild corrosion.