Study On Application Of Lightweight Aggregate Concrete Structure In High Seismic Intensity And Soft Soil Site

The development history of mankind is the history of the development of building materials. The multiplex survival pattern has decided the multiplex building materials. The future building materials must adapt the environmental protection, the energy conservation, the material savings request in the traditional factor foundation, will develop to local, the compound and high performance building materials.As a special concrete, after years of development, lightweight aggregate concrete has been successfully extended own application scope from the traditional non-structural domains (heat preservation, heat insulation, packing, etc.) to the field of structural concrete. This also proposes lightweight aggregate the higher demands in Concrete own performance and the production, design and construction. This paper based on the existing research results at home and abroad, with focus on the structure of the lightweight aggregate concrete used in the actual project under different conditions applicability.This paper studies the engineering environment for the earthquake highly seismic region and soft soil site, which fully manifests lightweight aggregate concrete relatively plain concrete most important two characteristics: the weight light, the module is low. The research work starts with local characteristic. Selects the Kunming Yunnan area ceramsite for lightweight aggregate, and made a great deal of work in the production of lightweight aggregate, and the production of lightweight aggregate concrete. And a number of lightweight aggregate concrete beam and board component have been put to test. The five boards, six beams, 21 anchorage components were subjected to a static test. Comprehensive analyse stress performance and pattern of lightweight aggregate concrete component. Their bending, shear, anchorage uplift, cracking deformation, and other key indicators are for the review contrast, has instructed the following work development.In light of the local lightweight aggregate, more in-depth discussions in the lightweight aggregate concrete weight and elastic modulus of the two is the double-edged sword in a sense of the material impact on material performance. And unifies many experiment sites project, has completed lightweight aggregate concrete and the plain concrete structure in the different construction form technology and the economical contrast. Various experiment sites project has the model the representation, also belongs from the project category continues constructs the project, rebuilds the project, the new construction. Namely the Yunnan first entire lightweight aggregate structure multilayered frame construction, the after domestic present most high strength grade CL50 pumping over lightweight aggregate concrete post-tensioned prestressing structure, the largest in Yunnan high pumping high-level seismic lightweight aggregate concrete wall construction, the first in Yunnan are some technical indicators have reached the country.This paper is also concerned about the lightweight aggregate concrete in the other comprehensive performance characteristics, such as grading variable density (intensity corresponding changes), and good thermal insulation, good fire prevention performance, and significant energy saving effect, good crack resistance of the characteristics, its high early strength, low-cracking trend (oneself maintenance features), more suitable for modern rapid construction requirements. In a pilot project through the entire process of construction control, ceramsite lightweight aggregate concrete construction transport, pumping, pouring, vibrated, clean surface, such as construction process, construction measures are briefly summarized and discussed.In the article take the Yunnan Kunming area clay ceramsite lightweight aggregate concrete as the main research object, its related achievement has the certain promoted value.