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CONSTRUCTION OF REINFORCED CONCRETE STAIRCASE AND STAIRCASE HANDRAIL PRECAST CONCRETE PANEL AND STAIRCASE STEP FORM USING FOR THIS
CONSTRUCTION OF REINFORCED CONCRETE STAIRCASE AND STAIRCASE HANDRAIL PRECAST CONCRETE PANEL AND STAIRCASE STEP FORM USING FOR THIS
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机译：钢筋混凝土梯级的建造和梯级手摇预应力混凝土板的构造以及为此使用的梯级步骤形式
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摘要
PURPOSE:To shorten construction period by timbering a steel staircase step form through the arrangement of reinforcing on a staircase site back form assembled between a staircase handrail of precast concrete panel and a circumferential wall, by placing concrete between the steel staircase step form and the staircase site back form, and by removing the form thereafter. CONSTITUTION:Upper and lower step parts 3a, 3b of a divergent staircase main body 3 are formed on the upper part of a staircase handrail precast concrete panel 2, and upper and lower handrail parts 2a, 2c, and upper and lower step side beams 2b, 2d are formed. Inserts 21... for supporting a reinforcement 31 of the step parts 3a, 3b of the main body 3, are arranged in two lines, while a pair of connection metallic materials 22... of a steel plate, are protruded on the upper end surface, and notches 23... and connection metallic materials 24... are provided on the lower end surface. The reinforcement 31 on a staircase site back form 5 is welded to the reinforcing bar preliminarily protruded from the circumferential wall, and steel staircase step forms 6, 7 are arranged, and are timbered by an angular pipe 9 and the like. The staircase can thus surely be integrated with the concrete panel 2.
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