Study On The Evaluate Methods And Application Of Temperature Control Programme For Marine Mass Concrete In Construction

The temperature control of bulky concrete bearing platform construction for cross-sea bridge is a comprehensive engineering.The advantages and disadvantages of temperature control measures directly affect quality,schedule,cost of whole project.With the rapid development of the cross-bridge and mass concrete in recent years,Temperature control measures of bulky concrete bearing platform construction for cross-sea bridge become quite new research goals that be concerned about.In recent years,temperature control of mass concerte in cross-sea bridge have been greatly developed.However,the evaluation of the temperature control measures is one-sidedness and subjectiveness.So seeking a evaluation system of temperature control measures that balance between security,economic,environmental and temperature effects is very meaningful.In this thesis,research ideas follow this logic thinking that summary of the concrete temperature-selected evaluation-established evaluation system-analysis of the evaluation – build evaluation model.And relying on temperature control engineering of Pingtan bridge cap to analysis temperature control neasures in mass concrete for cross-sea bridge.Making research on evaluating temperature control measures for marine concrete,and selecting programs.The main research results are obtained from essay as follows:1.After collecting various papers about temperature control for marine concrete,which from domestic and foreign.According to the characteristics of temperature control engineering in cross-sea bridge cap,analysis the reasons of the temperature control and measures,to build a temperature control measures evaluation system which satisfy the security,economic,environmental,good temperature effects,etc.2.This essay detail analysis of indicators,use fuzzy statistical method and expert grading method to determine the membership of each index,and the use of AHP and entropy weight method to draw a comprehensive scientific weight of each index.Analysis of technical and economic characteristics of common temperature control measures during construction,Based on fuzzy theory to construct a multi-level and multi-objective optimization model about thermostat.3.Binding characteristics of construction in Pingtan bridge FPZQ-4 tenders,to determine the three primaries programs use statistics and questionnaire.The use of models to evaluate them separately to obtain the optimum temperature control measures of the project,and through simulation to verify the feasibility of the measures.Thus confirming the feasibility and applicability of the model on thermostat scenario analysis.Finally,combining construction environment of FPZQ-4 tenders with the experience of similar projects to make recommendations for the implementation of temperature control measures.