本文对娄底市资水区的地形、地质以及水文条件等资料进行了解后，参考《公路

After understanding the topography, geological and hydrological conditions of the Zishui District in Loudi City, this article refers to the "Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts", "General Code for the Design of Highway Bridges and Culverts" and other engineering design experiences. A more systematic design and construction method research was carried out. The full text has six chapters. The main design content includes the size of the proposed T-section, the calculation of the inertia of the T-section, the dead load calculation of the main beam, the live load calculation of the main beam, the internal force combination of the main beam, the estimation of the prestressed steel bars, the calculation of the prestressed loss, the limit of the endurance capacity The status check and the results of the proofreading calculation by Midas computer calculation meet the requirements, and the methods used correspond to the new specifications.

In this paper, after understanding the topography, geology and hydrological conditions of the water area of Yandi City, this paper makes reference to the "Road reinforced concrete and pre-stressed concrete bridge culvert design specification", "general specification of highway bridge culvert design" and other engineering design experience, and studies the design and construction methods of T beams in a more systematic way, with a total of six chapters. The main design contents include drawing up the size of the T-section, the inertial calculation of the T-section, the main beam constant load calculation, the main beam live load calculation, the main beam internal force combination, the pre-stress rebar estimation, the pre-stress loss calculation, the persistence condition carrying force limit state calculation, and the result of the calculation of the match through Midas computer calculation, the method used is in line with the new specification.

In this paper, after understanding the topography, geology and hydrological conditions of the Zishui District of Loudi City, referring to the code for design of highway reinforced concrete and prestressed concrete bridges and culverts, the general code for design of highway bridges and culverts and other engineering design experience, a systematic study on the design and construction methods of T-beams is carried out. The full text consists of six chapters. The main contents of the design include the size of the proposed T-section, the inertia calculation of the T-section, the dead load calculation of the main beam, the live load calculation of the main beam, the internal force combination of the main beam, the calculation of the prestressed reinforcement, the calculation of the prestress loss, the checking calculation of the ultimate bearing capacity of the permanent condition, and the results of the checking by hand through Midas computer. The checking calculation is in accordance with the requirements, and the methods used are all in accordance with the new specifications Corresponding.<br>