短槽式石材幕墙挂装节点的受力性能

Mechanical Performance of Anchorage Joints on Short Kerf Stone Curtain Wall

摘要:

对短槽式石材幕墙面板与单个挂件的组合单元进行单调荷载作用下挂装强度试验，研究了槽内填胶率对节点破坏机理的影响，并基于冲切破坏模型提出了考虑石材胶黏剂影响的短槽式花岗岩石材幕墙挂装节点破坏荷载计算公式.结果表明：填胶率为0%时，挂件周围区域的石材沿槽弧形边发生脆性开裂，破坏特征以弯曲破坏为主；填充石材胶黏剂后，石材沿挂件边缘开裂，发生冲切破坏，且随着填胶率的增加，节点破坏荷载明显提升.

Abstract:

The strength of anchorage test under monotonic load was carried out on the composite unit consists of short kerf stone curtain wall pannel and single hanger connector. The influence of the stone adhesive filling rate in the kerf on the failure mechanism of the joint was investigated. Based on the punching shear failure mode， the calculation formula of the failure load of the anchorage joints on short kerf granite curtain wall considering the influence of stone adhesive was proposed. The results show that when the filling rate is 0%， brittle cracking occurs along the arc edge of the kerf in the stone area around the connector， and the failure mode is mainly bending failure. After filling the stone adhesive， the stone cracks along the edge of the connector and forms the oblique section of the cone. The failure mode is punching shear failure. With the increase of filling rate， the failure load of the joints increases significantly.