An anti-buckling bracing structural member includes core member and angle steel. The core member is cross-shaped. Four angle steels are enclosed on the core member. The outer edge of the core member is not enclosed by the side wall of the angle steel, and a plurality of threaded holes are arranged between the corresponding threaded holes. The two ends of the inner core member are longer than the two ends of the angle steel to form an extension yield section, and the two ends of the extension yield section are formed. The reinforcement section is formed by the inclined surface expansion treatment of the core component. The outer corner steel is encapsulated with high-strength concrete. Each corner steel in the high-strength concrete is axially penetrated with a prestressing cable, and the outer steel pipe is encapsulated with high-strength concrete. The angle steel connection of the utility model adopts a separate cushion block, which reduces the overall instability due to stress concentration, improves the high bearing capacity of buckling restraint braces under large deformation, and forms a strengthening section at both ends of the core component to ensure that the joint does not fail prior to the yield of the core component.
【技术实现步骤摘要】
一种防屈曲支撑结构构件
本技术涉及工程构件
,尤其涉及一种防屈曲支撑结构构件。
技术介绍
随着我国基础设施的大量建设和高速发展,超高层建筑、大跨桥梁等结构在我国抗震设防地区不断地涌现,由于我国是世界上地震最频发的国家之一,几乎每年都有破坏性地震发生,将对人生财产和基础设施的安全带来巨大的危害,超高层建筑与大跨桥梁结构等在社会和经济发展中承担着关键性的作用,防屈曲支撑构件是一种具有消能减震作用的抗侧力构件,一般由内核芯材构件与外围约束构件两部分组成,构件的截面沿着长度统一大小,并采用同一种材料均匀分布,这种结构造成了支撑构件在中间容易形成应力集中,最终容易导致外变形过大而功能时效,为满足内核构件挤压的需求,内核构件长于外围约束构件,整体构件在内核构件外伸段处出现刚度突变现象,且内核构件全截面屈服的受力状态加重其外身段的受力负担,由于此构件刚度在屈服后折减较多,其自身连接承载力以及对构件整体受力性能的影响较大,其内核心构件的端部外延伸段很可能因为内核构件的屈服而先于内核构件遭到破坏。
技术实现思路
本技术为解决上述问题,提供了一种能够满足超高层建筑结构或大跨度结构需求,外伸屈服段强度较强的防屈曲支撑钢结构构件。本技术所采取的技术方案:一种防屈曲支撑结构构件,包括内核构件和角钢,内核构件呈十字型,四个角钢外包在内核构件上,角钢的顶角集中在内核构件十字型交叉处,角钢的侧壁上未包围内核构件的外边缘开设多个螺纹孔,相邻角钢侧壁开的螺纹孔相对应,相邻角钢在对应螺纹孔间夹设垫块,通过螺栓穿过垫块将相邻的角钢侧壁连接,内核构件的两端头长于角钢的两端头形成外伸屈服段,外伸屈 ...
【技术保护点】
1.一种防屈曲支撑结构构件,其特征在于,包括内核构件(9)和角钢(4),内核构件(9)呈十字型,四个角钢(4)外包在内核构件(9)上,角钢(4)的顶角集中在内核构件(9)十字型交叉处,角钢(4)的侧壁上未包围内核构件(9)的外边缘开设多个螺纹孔,相邻角钢(4)侧壁开的螺纹孔相对应,相邻角钢(4)在对应螺纹孔间夹设垫块(5),通过螺栓(6)穿过垫块(5)将相邻的角钢(4)侧壁连接,内核构件(9)的两端头长于角钢(4)的两端头形成外伸屈服段(1),外伸屈服段(1)的两端经过斜面(7)对内核构件(9)进行外扩处理形成加强段(8),角钢(4)的外部包封高强度混凝土(2),高强度混凝土(2)内每块角钢(4)外沿轴向贯穿设有预应力索(3),高强度混凝土(2)外包外钢管(10)。
【技术特征摘要】
1.一种防屈曲支撑结构构件,其特征在于,包括内核构件(9)和角钢(4),内核构件(9)呈十字型,四个角钢(4)外包在内核构件(9)上,角钢(4)的顶角集中在内核构件(9)十字型交叉处,角钢(4)的侧壁上未包围内核构件(9)的外边缘开设多个螺纹孔,相邻角钢(4)侧壁开的螺纹孔相对应,相邻角钢(4)在对应螺纹孔间夹设垫块(5),通过螺栓(6)穿过垫块(5)将相邻的角钢(4)侧壁连接,内核构件(9)的两端头长于角钢(4)的两端头形成外伸屈服段(1),外...
【专利技术属性】
技术研发人员:李晓东,
申请(专利权)人:京冶华诚天津钢结构有限公司,
类型:新型
国别省市:天津,12
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