砌體斷線 的英文怎麼說
中文拼音 [qìtǐduànxiàn]
砌體斷線
英文
hacking-
Combined with the real example of monitoring pressure on the supporting system in the long span underground space of dk7 + 692 section at jiao - xin line of chongqing light railway, it is set forth the methods about choosing the support system and its parameter, digging methods of underground space, measuring and testing methods for the stress of the support system ; the testing results and variation pattern were analyzed for the stress of the initial supporting i - steel axial stress of bolt, stress of shot - concrete, supporting pressure of temporary i - steel and stress of steel of the second lining, then, the reason for deformation of the support system induced by sharp increase of i - steel was determined
摘要結合重慶市輕軌較新線大坪車站大跨度地下空間dk7 + 692斷面施工支護體應力監測的工程實例，闡述了該大跨度地下空間支護結構的參數選擇、地下空間的開挖方法、支護體結構的應力量測方法及測試手段；分析了支護體初期支護工字鋼拱應力、錨桿軸力、噴射混凝土內應力、臨時工字鋼支撐應力、二次襯砌鋼筋應力等測試結果和變化規律；確定了工字鋼拱應力急劇增大而可能引起支護體系失穩的原因。At the same time in this paper we analyze nonlinear behavior of masonry through finite element method program and obtain its load when the wall start to crack and when it destroy, the p - u curve and so on. a comparison has been made between the data obtained from the experiment and the calculated through finite element method program so that we can study the cause of crack. in this paper we use finite element method to study concrete ' s character to analyze masonry, satisfactory results have been attained
因此本文在對灰砂磚砌體進行力學性能試驗的基礎上，分析其裂縫產生的破壞模式與開裂機理，並論述了將斷裂力學知識運用於研究砌體裂縫問題的可行性；同時，本文運用有限元方法對結構低周反復加載靜力試驗所做的灰砂磚墻片進行非線性分析計算，得出墻片的開裂荷載、極限荷載、 p ? u曲線，裂縫在墻體上的分佈等，與試驗所得數據對比，以便於研究裂縫的開裂機理，並將研究混凝土的有限元方法運用到對砌體的研究中，取得了較滿意的結果，為類似的試驗分析提供了一條新的思路。
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