结构设计原理课程设计钢筋混凝土梁设计(英文版).pdf

Project of Principles of Structure Design Reinforced Concrete Beam Name 锛 Wang Pengzhi Class 锛 2011210701 NO. 锛 08 SCHOOL OF HIGHWAY COLLEGE CHANG鈥橝N UNIVERSITY DECEMBER 7, 2013 Project of principles of structure design 201121070108 Wang Pengzhi Project Known: the member is a concrete T beam (simple support beam), the standard span is 戆宽睆 = 13肀? calculating span 戆 = 12.6肀 . The reinforcement distribution placed and section dimensions of normal section flexural capacity are shown in the diagram. Main 2 steel bar is HRB335 (4饊寵32 + 4饊寵16), 饊€错睜 = 4021肀氻睔 , erection steel bar is HRB335 (2饊寵22), an eight-layer steel skeleton is welded. Concrete is C30, grade 鈪爀nvironment, 位0 = 1.1. For support section, shearing calculated value V0 = 纬0Vd,0 = 342kN,bending moment calculated value M0 =纬0Md,0 = 0 锛汧or mid-span section, shearing calculated value Vl/2 =纬0Vd, l/2 =71.0kN, bending moment calculated value Ml/2 =纬0Md, l/2 = 1000kN.m. Solution: (1) Check of the sectional dimensions To meet the construction requirements, the bottommost layer of steel bar must be through the bearing section. And the effective depth of bearing section is (set the thickness of cover 肀 = 38肀氻睔) 鈩? = 鈩 鈭 (35 + 35.8) = 946肀氻睔 2 (0.51 脳 10鈭?)鈭氿€亾 肀忊剮 = 0.51 脳 10鈭? 脳 鈭?5 脳 180 脳 948 = 475.65kN 纬 饊亯 ( 肀愴雹,肀 0 0 肀?0 = 342kN) So,