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    • 6. 发明公开
    • 무내화피복 고력 볼트 접합부 구조
    • 没有防火材料的螺栓的高强度连接结构
    • KR1020040024520A
    • 2004-03-20
    • KR1020030063400
    • 2003-09-09
    • 신닛테츠스미킨 카부시키카이샤
    • 오카다다다요시우노노부요시구보타신
    • F16B31/06
    • E04C3/32E04B1/2403E04B2001/2415E04B2001/2418E04B2001/2454E04B2001/2457E04C3/06
    • PURPOSE: High-strength connection structure of a bolt without fireproof materials is provided to improve tensile strength at a high temperature of 650 deg. C, and to reduce construction cost and period without covering the refractory materials. CONSTITUTION: H-beams(1a,1b) are combined by outer additional plates(1a), inner additional plates(2b) and side additional plates(2c) and high-strength bolts(3). The connection structure of the high-strength bolt has the tensile strength(TS) of 1200 N/mm2 or higher at room temperature, and satisfies the relation that the shear proof stress at high temperature of 650 deg. C is not less than {coefficient of slip at room temperature(mu)*design bolt tension(N0) } / {safety factor for long term load(nu)*cross-sectional area of bolt shank(bAs)}.
    • 目的:提供无防火材料的螺栓的高强度连接结构,以提高650度高温下的抗拉强度。 C,并且在不覆盖耐火材料的情况下降低施工成本和期限。 构成:H形梁(1a,1b)由外部附加板(1a),内部附加板(2b)和侧面附加板(2c)和高强度螺栓(3)组合。 高强度螺栓的连接结构在室温下的拉伸强度(TS)为1200N / mm2以上,满足650℃高温下的抗剪应力的关系。 C不小于{室温下的滑移系数(μ*)*设计螺栓张力(N0)} / {长期载荷(nu)的安全系数)*螺栓杆(bAs)的横截面积。