Numerical and experimental study on the refrigeration performance of a variable-section gas wave oscillation tube

Research on the Performance of Lightweight Prefabricated Concrete Stairs with a Special-Shaped Hollow Landing Slab

“…Buildings 2024, 14,1314 subjected to vertical tensile stress, with a maximum val ments are subjected to vertical compressive stress, with a (ii) End section (Figure 9b):…”

“…Considering the transportation and lifting requirements of prefabricated components, an ideal prefabricated concrete staircase should have the characteristic of being easy to move. There are two corresponding technical ideas: one idea is to first divide and then assemble [13][14][15][16]; another idea is to develop lightweight prefabricated stairs, such as lightweight prefabricated stairs equipped with integrated lightweight staircase partition wall panels [17], lightweight prefabricated stairs using lightweight materials and steel wire mesh [18], lightweight prefabricated stairs using "double beam + thin slab" construction with weight-reducing cavities in the steps [19], and lightweight prefabricated stairs setting longitudinal continuous holes in the diagonal staircase [20]. By comparison, the technology concept of first slicing and then assembling has relatively high implementation difficulty, a relatively large on-site construction workload, and many unstable factors.…”