25銆佹纰虹瓟妗堟槸B锛屼富瑕佷綔绛旈亷绋嬶細

鎷兼帴鏉胯垏绡€(ji茅)榛�(di菐n)鏉夸箣闁撶殑2姊濈剨绺槸鍙楀壀鐨�锛屽叾鎵挎摂(d膩n)鐨勫壀鍔涙槸鎷兼澘鍙楀姏鍜岀瘈(ji茅)榛�(di菐n)鏉垮彈鍔涗腑鐨勫皬鍊�銆�

鎷兼澘鍙楀姏锛�

N1锛�Anf锛�358*10*310锛�1109800N

绡€(ji茅)榛�(di菐n)鏉垮彈鍔涘嵆鑵规】缈兼澘鍙楀姏锛�N2锛�Anf锛�2*300*16*310锛�2976000N

寮忎腑f鐐�Q345閶兼澘鐨勬姉鎷夊挤(qi谩ng)搴﹁ō(sh猫)瑷�(j矛)鍊�銆傛煡銆婇嫾绲�(ji茅)妲�(g貌u)瑷�(sh猫)瑷�(j矛)瑕�(gu墨)鑼冦€�GB50017-2003琛�3.4.1-3

鐢�7.1.2姊�2娆�锛屾湁

  L=lw+2t=308+2*10=328mm,鍙�L锛�330mm

26銆佹纰虹瓟妗堟槸D锛屼富瑕佷綔绛旈亷绋嬶細

鏍规摎(j霉)銆婂缓绛戞姉闇囪ō(sh猫)瑷�(j矛)瑕�(gu墨)鑼冦€�GB50011-2001 8.1.5姊濈3娆�銆傞伕D

27銆佹纰虹瓟妗堟槸D锛屼富瑕佷綔绛旈亷绋嬶細

鍔犲媮鏉胯垏鑵规澘闁撴湁4姊濈剨绺壙鎿�(d膩n)鍔�F?锛佹湹鎽籝(ji茅)妲�(g貌u)瑷�(sh猫)瑷�(j矛)瑕�(gu墨)鑼冦€�GB50017-2003寮�(7.1.3-2)

鐢� lw=2500000/(0.7*16*160*4)+2*16=349 +32=381mm

绲�(ji茅)妲�(g貌u)鍙楀姏鑵规澘   lt=2500000/(2*16*125)=625mm锛屽彇700mm锛岀祼(ji茅)妲�(g貌u)鍙楀壀鎺у埗銆�

28銆佹纰虹瓟妗堟槸D锛屼富瑕佷綔绛旈亷绋嬶細

鏍规摎(j霉)銆婇嫾绲�(ji茅)妲�(g貌u)瑷�(sh猫)瑷�(j矛)瑕�(gu墨)鑼冦€嬬4.3.7姊�okok.org 

I=1/12*20*400^3=1.067e8mm4okkok.org 

A=20x400+180x12=10160mm2okok.org 

i=(I/A)0.5=102.5mmokok.org 

位=L/i=12.68okok.org 

鏌ラ檮琛�okok.org 

桅=0.988okok.org 

斜=N/桅A(ch菙)=100.1N/omm2okok.org 

29銆佹纰虹瓟妗堟槸C锛屼富瑕佷綔绛旈亷绋嬶細

鏍规摎(j霉)銆婇嫾绲�(ji茅)妲�(g貌u)瑷�(sh猫)瑷�(j矛)瑕�(gu墨)鑼冦€�GB50017-2003锛�10.2.1.1锛夋敮绠¤垏涓荤閫ｆ帴铏�锛屼笉寰楀皣鏀鎻掑叆涓荤鍏�(n猫i)銆�

30銆佹纰虹瓟妗堟槸B锛屼富瑕佷綔绛旈亷绋嬶細

  銆婄爩楂旂祼(ji茅)妲�(g貌u)瑷�(sh猫)瑷�(j矛)瑕�(gu墨)鑼冦€�6.11

A锛�0.24*1+0.25*0.24锛�0.3 m2o

  I=1*0.243/12+1*0.24*(0.169-0.12)2+0.24*0.253/12+0.24*0.25*(0.49-0.125-0.169)2/12

  =0.004345 m4o

i=(I/A) 0.5=(0.0043/0.3)0.5=0.12m

hT=3.5i=0.42m

H0=1.0H=3.6m

尾=H0/hT=3.6/0.42=8.57

31銆佹纰虹瓟妗堟槸A锛屼富瑕佷綔绛旈亷绋嬶細

S=3m,渭1=1.0

渭2=1-0.4*bs/S=1-0.1*0.333=0.867

鐢便€婄爩楂旂祼(ji茅)妲�(g貌u)瑷�(sh猫)瑷�(j矛)瑕�(gu墨)鑼冦€嬭〃6.11锛�[尾]锛�24

渭1渭2[尾]锛�1*0.867*24锛�20.8

[尾]锛�3.9/0.24锛�16.25<渭1渭2[尾]=20.8