現代營建 290---筏基劣質PC先填工法 一、前言 所謂『劣質PC先填工法』係指:筏式基礎於地梁尚未澆築完成前,即先進行基坑劣質PC之澆築作業稱之。 『筏式基礎』已普遍為現代大樓建築的基礎型式。筏基結構區分為大底(FS)、地梁(FB)、水箱蓋(BS)三大部份,而地梁與地梁環繞之基坑 ...
Cj 的家: 第三點:地基上來後,1F地板綁鐵前,下面打一層2000PSI PC - yam天空部落 一般來說,地基回填後,在回填土上面都會上一層碎石及配。如下圖: 其目的是為了1F的鋼筋與泥土不要直接接觸,鋼筋上面有泥土的話,會影響其與混凝土的結合力。所以為了要避免鋼筋沾上混凝土,所以建議在上面不用碎石了,直接上2000PSI 的PC。
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PC-Concrete™ SHEAR LOADS FOR THREADED RODS Safety Factor “Allowable” equals 25% of Ultimate Load, 32% for Steel Based on Bond Strength, 2000 PSI Normal Weight Concrete Allowable, Based on Steel Strength Threaded Rod Diameter (in) Hole Min Embedment
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