工字形组合截面吊车钢梁在进行抗弯 强度计算时，截面塑性部分发展系数取值为

A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"="">γ_{<span lang="EN-US">x</span>}<span lang="EN-US">=</span>γ_{<span lang="EN-US">y</span>}<span lang="EN-US"> =1.0</span></span>

B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"="">γ_{<span lang="EN-US">x</span>}<span lang="EN-US">=1.05, </span>γ_{<span lang="EN-US">y</span>}<span lang="EN-US">=1.2</span></span>

C、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"="">γ_{<span lang="EN-US">x</span>}<span lang="EN-US">=1.15, </span>γ_{<span lang="EN-US">y</span>}<span lang="EN-US">=1.2</span></span>

D、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"="">γ_{<span lang="EN-US">x</span>}<span lang="EN-US">=1.05, </span>γ_{<span lang="EN-US">y</span>}<span lang="EN-US">=1.15</span></span>