Method for modifying T-beam prefabricated pedestal

Abstract

The invention discloses a method for modifying a T-beam prefabricated pedestal. The method comprises the following steps of: calculating a length numerical difference M and a width numerical difference N between an original T-beam prefabricated pedestal and a target T-beam prefabricated pedestal needing to be modified, adding two lengthened sections with the numerical difference of M / 2 to two ends of the original T-beam prefabricated pedestal, and adding two widened sections with the numerical difference of N / 2 to two sides of the original T-beam prefabricated pedestal. The pedestal modifying method is simple, convenient to operate and easy to construct. According to the method, the time for pouring reinforced concrete and concrete strength maintenance of a common pedestal is saved, drilling and welding construction can be conducted at multiple points at the same time, then the construction period is shortened, and the construction efficiency is improved. According to the method, phi-25 twisted steel is adopted as a bottom support, and compared with a traditional reinforced concrete structure pedestal, the construction cost is saved, and the economical efficiency is good.

Description

technical field [0001] The application relates to the field of bridge construction, in particular, to a method for remanufacturing a T-beam prefabricated pedestal. Background technique [0002] As a common form of bridge construction, prefabricated beams need to build a prefabricated beam field and use prefabricated beam pedestals during the construction process. Due to the variety of prefabricated beam structures, the corresponding prefabricated pedestal structure sizes are also different. Generally, the size of the 30m prefabricated T-beam pedestal is 31m×50㎝×40㎝ (length×width×height), and the size of the 40m prefabricated T-beam pedestal is 41m×60㎝×40㎝ (length×width×height). Usually the prefabricated pedestal is poured with reinforced concrete structure, and the expanded foundation is poured within 2m of the end of the pedestal. [0003] Usually, in actual application, it is necessary to plan and arrange the overall construction schedule of the project and the limitatio...

AI Technical Summary

Problems solved by technology

For example, the conventional practice is to destroy the 30m prefabricated T-beam pedestal and then recast it according to the size of the 40m prefabricated T-beam pedestal, or cut off part of the 30m prefabricated T-beam pedestal and then recast it according to the size of the 40m prefabricated T-beam pedestal, which undoubtedly increases the construction work quantity and construction period, and bring certain economic losses

Images