鋼結(jié)構(gòu)、屋面網(wǎng)架和屋面板施工方案

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4.1.

4.2.

4.3.

4.4.

5.1.

長度和寬度+10，-1.0mm;矩形對角線之差不大于

0.5mm。

鄰眼心距±0.5mm；兩排眼心距±0.5mm；沖點與眼心距位移±0.5mm。

（5）當(dāng)環(huán)境溫度低于-20℃時，禁止沖孔。

6.1.

6.2.

6.3.

5、鋼柱吊裝與校正

6.4.

6.5.

8.1.

8.2.

9.1.

（1）選用恰當(dāng)?shù)暮附庸に囅禂?shù)，盡量采用焊接工藝

10-30mm，點距為

于-12℃時，不得采用本低于-16℃時，低合金色

9.2.

H≥10m

≤-8∽+5mm≤5mm錯邊≤2mm

≤10mm