Based on the research of steel housing industry, a new outer-shell joint connecting cold-formed square tubular column and H-shaped steel beam with bolts was designed.

结合钢结构住宅产业化的研究，设计了冷弯方钢管与H型钢梁的螺栓连接外套管式节点。

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He has suggested a steel frame and a stone outer shell, leaving enough space for stairways, lifts and service ducts leading to the space in the pediment above, and a basement - possibly a nightclub - linking the arch with the existing stone lodges on either side.

BBC: 'Romantic' attempt to save lost arch