This paper develops and applies a fully coupled fluid–structure interaction technique to analyse the blast response of cable truss facade (CTF). This technique models the explosive source, blast wave propagation and interactive behaviour of blast pressure with the structure and enables to evaluate the effects of load related parameters. Modelling techniques are verified with experimental and numerical results and then used to analyse the blast induced shock wave propagation through air and the response of the CTF. Effects of load related parameters of charge weight, standoff distance and height of explosive from the ground are investigated. Limits on the load related parameters and the maximum allowable cable deflection are identified based on results to enable a safe design of the CTF. The combined effects of charge weight, standoff distance and height from the ground that produce similar failure patterns can be used to present the results in the form of Pressure- Impulse (P-I) diagrams. They are iso-damage curves based on blast pressure and impulse that produce similar damage in the structural component of interest. A damage criterion based on axial load carrying capacity, to initiate the development of P-I diagrams for CTF is proposed. The validated fully coupled modelling techniques presented in this paper provide an important source for generating information in the blast design field and for determining the blast behaviour of CTFs. The results can be used to determine the limits on the load related parameters and the maximum allowable cable deflection to enable safe blast designs of the CTFs.

本文开发并应用了一种完全耦合的流固耦合技术来分析电缆桁架外墙（CTF）的爆炸响应。该技术对爆炸源，爆炸波传播以及爆炸压力与结构的相互作用行为进行建模，并能够评估载荷相关参数的影响。通过实验和数值结果验证了建模技术，然后将其用于分析爆炸诱发的冲击波在空气中的传播以及CTF的响应。研究了装药重量，对峙距离和炸药离地面高度与载荷有关的参数的影响。根据结果​​确定负载相关参数和最大允许电缆挠度的限制，以实现CTF的安全设计。电荷重量的综合影响 产生类似故障模式的距离和与地面的高度可以用来以压力脉冲（PI）图的形式表示结果。他们是基于爆炸压力和冲击力的等值损伤曲线，在目标结构部件中产生类似的破坏。提出了一种基于轴向承载能力的损伤判据，以启动CTF PI图的开发。本文介绍的经过验证的完全耦合建模技术为在爆炸设计领域生成信息以及确定CTF的爆炸行为提供了重要的来源。结果可用于确定与负载相关的参数的限制以及电缆的最大允许挠度，以实现CTF的安全爆破设计。