The research proposes a theoretical model for EPC engineering general contracting project man-agement led by design institutes based on partnership,and tests the theoretical model through questionnaire data and structural equation modeling.The research conclusion reveals the mechanism of the partnership,integrated manage-ment,project management,and project performance between the design institute,construction units,and procure-ment units.Verified that partnership helps to strengthen project integration management,which helps to strengthen design management,procurement management,and construction management.Contribute to efficient project man-agement and continuous improvement of project performance.And propose the important role of building partner-ships and improving integrated management capabilities in project performance.
The design logic of underground commerce and aboveground commerce is basically consistent,with a focus on solving the tripartite matching of"content space dynamic line".Among them,the moving line is the skeleton,the content is flesh and blood,and space is the carrier.This study analyzes the four core components of un-derground commercial power lines:horizontal power lines,vertical power lines,sunken squares,and atriums.Com-bining multiple practical cases,it summarizes the data and methods of underground commercial power line design,in order to provide reference for similar projects.
Due to the complex structure of outdoor sports stadiums and the poor appearance quality of the stands,it is difficult to control the processing quality and installation accuracy of prefabricated stands.This study elaborates on how to ensure the quality and installation accuracy of plain concrete from the aspects of factory processing accuracy,on-site installation quality,and electrical integration design,and introduces the optimization of prefabricated plain concrete stands in the deepening stage.In order to solve the problems of poor construction quality and slow construction progress of conventional cast-in-place concrete,in addition to solving the technical difficulties of poor installation accuracy and electromechanical integration of traditional prefabricated concrete stands.
To study the stress and stability of container house under external load,a finite element model was established based on ABAQUS,and the effect of corrugated plate size parameters(wavelength and inclination angle)on the column stress and structural stability coefficient was studied in detail.The results show that when the column side length of container house is small,the column bearing capacity decreases rapidly with displacement.When the column side length is large,the column bearing capacity decreases slowly,and the overall trend is basically the same.When the column side length of container house is small and the inclination angle of corrugated plate is 45°～55°,the column bearing capacity decreases rapidly with displacement.When the side length of the column is large,the overall trend of the column axial force-displacement curve is basically the same.When the inclination angle of the corrugated plate is 50°,the column bearing capacity decreases rapidly with the displacement.The research results can provide valuable reference for the mechanical stability of container house in service.
According to the definition of seismic angle in earthquake resistant design code,the study calculates the seismic angle of retaining wall taking all factors into consideration,to perfect the theory of anti-seismic design,providing reference for seismic angle calculation of different structures,and points out that the seismic angles should be different according to different structures.
