金屬波紋管

2020/04/29 分類:波紋管 2807 0

金屬波紋管采用鍍鋅或不鍍鋅低碳鋼帶螺旋折疊咬口制成，用于后張預(yù)應(yīng)力混凝土構(gòu)件中預(yù)留孔的金屬管。

圓管內(nèi)徑尺寸及其允許偏差

內(nèi)徑	40	45	50	55	60	65	70	75	80	85	90	95	96	102	108	114	120	126	132
允許偏差	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5	±0.5
注：其他尺寸由供需雙方協(xié)議確定。

扁管內(nèi)徑尺寸及其允許偏差

		適用于Φ12.7預(yù)應(yīng)力鋼絞線			適用于Φ15.2預(yù)應(yīng)力鋼絞線
短軸方向	長度h	20	20	20	22	22	22
	允許偏差	0，+1.0			0，+1.5
長軸	長度b	52	65	78	60	76	90
	允許偏差	±1.0			±1.5

金屬波紋管徑向剛度要求

截面形狀			圓形	扁形
集中荷載/N	標(biāo)準(zhǔn)型		800	500
集中荷載/N	增強(qiáng)型		800	500
均布荷載/N	標(biāo)準(zhǔn)型		F=0.31d2	F=0.15d2
均布荷載/N	增強(qiáng)型		F=0.31d2	F=0.15d2
δ	標(biāo)準(zhǔn)型	d≤75mm	≤0.20	≤0.20
	標(biāo)準(zhǔn)型	d>75mm	≤0.15	≤0.20
	增強(qiáng)型	d≤75mm	≤0.10	≤0.15
	增強(qiáng)型	d>75mm	≤0.08	≤0.15

標(biāo)簽:波紋管上一篇: 塑料波紋管

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