Formwork installation and support structure for haunching under small-span tunnel slab

Abstract

The utility model relates to the field of building construction technology, and specifically is a small span tunnel board under haunching formwork installation and support structure. Including articulated lower bar and upper bar, length adjusting unit contains the extension pipe connected with upper bar, formwork unit, lower bar, upper bar and extension pipe are pasted on formwork unit, the receiving support unit includes the main ridge of longitudinal arrangement and vertical support rod, and the main ridge is pasted on the wall formwork of tunnel side and is fixed through the pull together spare, and the lower bar bottom end is abutted with the top end of main ridge, and the vertical support rod is arranged in the below of integral module and supports its inclined plane and horizontal top surface, and the bottom end of upper bar and / or extension pipe is provided with the steel wedge between the top end of adjacent vertical support rod. Through the adjustable articulated structure of angle adjusting unit, the different haunching angle changes are adapted, and through the telescopic structure of length adjusting unit, the different size requirements are matched, effectively avoid the material waste and the construction inconvenience caused by the on -the -spot cutting inner ridge in traditional technology.

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