Method for reinforcing connection of diaphragm plate and girder by aid of penetrating type prestress
The invention discloses a method for reinforcing connection of a diaphragm plate and a girder by aid of penetrating type prestress. The method comprises steps as follows: (1) positions of additionally arranged prestress steel strands are determined on the diaphragm plate and a girder web, and then,...
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Main Authors | , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
31.05.2017
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a method for reinforcing connection of a diaphragm plate and a girder by aid of penetrating type prestress. The method comprises steps as follows: (1) positions of additionally arranged prestress steel strands are determined on the diaphragm plate and a girder web, and then, holes are drilled in the girder web and the diaphragm plate to form mounting channels for prestress steel strands; (2) slots are formed in two ends of each mounting channel, and stress-dispersing steel cushion plates are mounted in the slotted positions; (3) the prestress steel strands penetrate through the channels in the girder and the diaphragm plate; steel strand anchoring devices are mounted; steel strands are tensioned. After external prestress is added between the girder and the diaphragm plate, connection between the girder and the diaphragm plate is effectively enhanced, so that the diaphragm plate prestores certain press stress when not bearing load of a vehicle, pulling stress produced under constant act |
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Bibliography: | Application Number: CN20161992852 |