发布时间:2025-01-18 11:38:29
M24高强度螺栓:
10.9S时,它的屈服强度为940MPa,可受拉力为:
F=940*3.14*20.752^2/4=317773N=317.773KN
8.8S时,它的屈服强度为660MPa,可受拉力为:
F=660*3.14*20.752^2/4=223117.4N=113.117KN
用高强度钢制造的,或者需要施以较大预紧力的螺栓,皆可称为高强度螺栓。高强度螺栓多用于桥梁、钢轨、高压及超高压设备的连接。这种螺栓的断裂多为脆性断裂。应用于超高压设备上的高强度螺栓,为了保证容器的密封,需要施以较大的预应力。
CHOSEAL秋叶原QS5161GT15六类CAT6千兆网线15m绿色-适用对象
2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29三楼新房装修想要改下格局但卧室和卫生间通口的上方能看到明显的横梁如果是承重墙的话还能改吗
2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29建筑面积92平 套内面积70平的两室两厅房子基础装修的大概费用是多少啊
2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29 2025-01-18 11:38:29