Overground-underground bidirectional ultra-long concrete seamless design method

Abstract

The invention discloses an overground-underground bidirectional ultra-long concrete seamless design method and belongs to the field of constructional engineering. The method is characterized in that home and abroad large finite element programs, such as ANSYS, ABAQUS, SAP2000 and PMSAP, are used for calculation and analysis, and indoor and outdoor temperature data actually measured in practical projects is applied in the calculation so as to actually measure the regional average temperature; the maximum temperature difference of concrete shrinkage is calculated; and the division of a post-pouring strip or an expansion reinforcing strip and the restrained expansion rate of the used crack resistant waterproofing agent and expanding agent are provided in the design according to the conditions of individual buildings. By utilizing the method, the problem of difficulty in overground-underground bidirectional ultra-long concrete seamless design is solved successfully, requirements on entire use functions of the buildings are satisfied, the usable area is increased, and simultaneously, the construction speed is accelerated; problems in aspects of durability, fire resistance, water tightness, maintenance and the like and building defects caused by arrangement of a deformation joint are solved; and the arrangement of equipment pipelines can be facilitated.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a seamless design method for above-ground and underground two-way super-long concrete. Background technique [0002] my country's current "Code for Design of Concrete Structures" (GB 50010-2010) stipulates that the maximum spacing of expansion joints for ordinary cast-in-place reinforced concrete structures is 55m (frame structure) and 45m (shear wall structure). According to this regulation, for some large super-long buildings, the number of expansion joints will be greatly increased, which will bring many difficulties to the building's use function, facade shape, waterproof, windproof, earthquake resistance and heat preservation. [0003] The seamless design of super-long concrete structures is to carry out structural design without any form of permanent joints for buildings whose length exceeds the specification requirements for expansion joints. Generally speaking, t...

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Problems solved by technology

[0005] However, due to the fact that the methods used in China for large and super long buildings are mostly qualitative rather than quantitative, lacking calculation basis and on-site measurement data, and often relying on experience to guide on-site construction, there are also many problems in actual projects. Construction quality issues, resulting in leaks in the basement and cracks in the fill walls

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