Integrally-assembled concrete structural system adopting steel bar lapping mode

Abstract

The invention provides an integrally-assembled concrete structural system adopting a steel bar lapping mode and relates to a concrete part system. Effective lapping degree of parts is reserved according to common cast-in-place steel bar concrete calculation and design, designed common concrete filling (pouring) is adopted after prefabricated parts are installed in place in the field construction process, the lapping length of the parts is required to be considered when the parts are dismantled, steel bars and steel bar plugging-in grooves with considered lapping length are reserved according to the design and construction requirements when the parts are manufactured, the parts are arranged in place in construction and installation according to the requirements after the prefabricated parts are transported to a field, and concrete is filled (casted) according to the design requirement under the condition that the parts are ensured to be stable. Additional sleeves, spiral bars and the like are not required, accurate aligning between the steel bars and preserved holes of the parts is not required, part processing difficulty and construction installing difficulty are reduced greatly, construction cost is reduced, and a construction period is shortened.

Description

technical field [0001] The invention relates to a structural system of concrete components, in particular to an assembled integral concrete structural system adopting a steel bar lap connection method. Background technique [0002] With my country's increasing efforts to promote the industrialization of buildings, prefabricated monolithic buildings are emerging all over the country. The key to assembling monolithic buildings is how to effectively connect the prefabricated components made in the factory into a whole building. Firmness and reliability directly affect the safety of the overall building structure; and the difficulty of installation and concrete pouring (pouring) of the connection area will also directly affect the overall construction progress and construction quality of the building. Therefore, seeking an assembly-integral connection design, production and construction method that is as simple as possible under the premise of ensuring structural safety is the c...

AI Technical Summary

Problems solved by technology

The former connection method was first adopted in Japan, and it is mainly suitable for the component processing and on-site construction environment of Japanese enterprises. However, there is a big gap between the existing domestic component production and construction management level in my country and Japanese-funded enterprises. This technology requires component processing The level and precision are high, and it is difficult for the technical level of domestic enterprises to meet their precision requirements, and the processing cost of the sleeve is relatively high, which will increase the cost of the building; although the latter avoids the use of the sleeve to a certain extent. The cost increase and the accuracy of component manufacturing

However, due to the use of spiral bars to enhance the connection effect of steel bars between components, it brings certain difficulties to the production of components. At the same time, the use of grouting materials as fillers in the gaps between steel bars in the connection parts increases part of the cost to a certain extent; therefore, The connection methods between the above two types of assembled monolithic building structural components have their shortcomings.

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