{'fraction_non_alphanumeric': 0.012468827930174564, 'fraction_numerical': 0.003740648379052369, 'mean_word_length': 4.992537313432836, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Ductility enhancement of RC beams confined by steel cover plates

Abstract By confining the cover concrete of the beam on the compression side with steel cover plate, the ultimate compressive strain of cover concrete can be increased, the buckling of compression steel bars can be retarded, and the ductility of the beam can be elevated. Eleven large‐scale beams were tested to evaluate the effectiveness of the proposed scheme. Test results showed that the confining system used in this study was able to provide sufficient confinement to the beam cover concrete and was able to raise the ductility value of an existing beam up to 349% that of the original beam. Compared to concrete jacketing technique, the ductility enhancement scheme proposed in this study requires less demolition and less labor.