The present study assesses the seismic performance of steel moment resisting frames (SMFs) retrofitted with different bracing systems. Two structural configurations were utilized: ordinary concentrically braces (OCBFs), buckling-restrained braces (BRBFs). A 7-story and 18-story steel perimeter SMFs were designed with insufficient lateral stiffness to satisfy code drift limitations in high seism...

Results Prior to participating the present study, the mean duration of brace treatment was 25.5 months for the Boston brace and 13.9 months for the Brace 2000. In the Boston brace group, the mean primary right thoracic curve was 35.8°, and the mean secondary curve measured 24.1°. The mean corrective force over the lumbar brace pad in standing position was 394 N, and over the thoracic brace pad ...

Materials and methods This is a retrospective study examining coronal plane spine radiographs of 27 adolescents diagnosed with idiopathic scoliosis and prescribed a Boston Brace-style thoracolumbosacral orthosis. Cobb angle, decompensation of C7, and Overall Balance Summation (OBS) (Carlson and Smith, 2007) were measured on pre-brace, in-brace, and immediately post-brace x-rays for each subject...

OBJECTIVES/HYPOTHESIS The majority of laryngectomy patients fail to use a hands-free valve on a daily basis, mainly due to fixation problems of the adhesive baseplate housing. To support adhesive housings during hands-free speech a new external neck brace (ENB 2.0) was developed. The effect of the brace was assessed in terms of a qualitative assessment, adhesive lifetime, maximum phonation time...

Background: A thoracic curve degree of greater than 45° leads to thoracic hyperkyphosis, and its common treatment method is orthotic treatment. The acceptance rate of spinal orthosis depends on in-brace correction, patient`s compliance and quality of life. Objective: In this study, we aimed to compare in-brace correction, compliance and quality of life in patients with thoracic hyperkyphosis ...

Recently, buckling-restrained braces (BRBs) have been widely implemented as seismic load resistance systems in buildings to enhance their response against dynamic vibration. However, during catastrophic earthquakes, the steel core BRB devices fully yields, which causes lose its functionality. While incorporation of various filler materials, such new high-performance concretes, has potential per...

Results For the 22 symmetric CAD TLSOs, initial in brace correction of thoracic curves was 9.1 degrees, with average out of brace thoracic curve 25.2 degrees, and lumbar curve correction of 10.3 degrees, with average out of brace lumbar curve 27.8 degrees. The percentage of correction in CAD versions was 36.1% thoracic, and 37.1% lumbar. For the 12 asymmetric, TLSOs molded supine with manipulat...