shear lag sentence in Hindi
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- 6 ) the thermo - mechanical behaviors of sma fiber reinforced smart structures with damages have been analyzed by utilizing the shear lag model and variational principle . mathematical expressions on meso - displacement field , stress - strain field of typical element with damages have been presented , and a failure criterion of interface between sma wires and base material is established . a geometric characterization on the failure criterion has also been made via an example
- Based on the calculated results of the computer program , varied stress contribution curves of short leg walls with t , l and + shaped sections are shown in the paper , together with deformation information of members . to measure the influence of shear lag , the equivalent bend stiffness of short leg walls is introduced . the discounting coefficients of the bend stiffness of members can be used in the bars - system models of short leg walls building structures
- The plexiglass model test is carried out by two selective shape , the stress of each test operating loads was obtained in order to validate the correctness of the finite element modeling . in this paper , a regularity of shear lag effect of main sections in two kinds of box girder is given . as the foresight project of double - level - driveway continuous box girder , this research fully utilizes the space of box girder structure and flexural and torsional properties of high - depth box girder , which have innovative significance and applied foregroundin engineering
- Modeling the general solid web continuous box girder and opening - in - web ( open web ) continuous box girder by ansys finite element modeling tool , node stress of governing section and corresponding shear lag values are analyzed . the solution is validated by comparing with variational results and modeling test values . based on the model , the section shear lag induced by dead load , prestress tendons and car loads under the most unfavorable condition and lateral symmetry are also approached . the influence of shear lag effect in double - level continuous box girder is considered with opening - in - web and the web location . the analysis indicates that double - level - load arouses less shear lag effect than one - level - load . when self - weight and prestressed tendons act on together , the shear lag effect on box girder take on a evidently change
- The full range analysis from cracking to crashing of box girder are conducted in detail to ascertain the response for the structure to load , and the parametric study about the shear lag of box girder within the nonlinear stage has been finished and some profitable conclusions have been obtained as well
- The project is completed in the collaboration of the transportation college of jilin university and transportation science institute in jilin province . the paper mainly studies the characteristics and mechanical performance of small size member of bridge , the problems of concrete dense degree and shear lag effect of wide flange . the static load test and supersonic nondestructive test of four pieces of prestressed i - girder with varying section are carried out in bridge structure laboratory of jilin university
- Based on the minimum potential energy principal , the influences of three loads , which are concentrated force , trapezoidal load and sinusoid load , over shear lag of cantilever single - box - single - cell box girder are deducted and discussed , and a conclusion is reached , which has some instructive significance for designer to determine the sectional dimension and reinforcing bars ; the bending normal stress changes greatly as considering the shear lag effect
- The work in this thesis mainly includes following parts : 1 . as for box girder cross section , the three - bar stimulation method under typical loads and supports has been introduced . the force and stress formulae for flanges have been derived from the three - bar method . by reasonable simplification for multi - cell box girder , the three - bar method has been applied in multi - cell box girder ' s shear lag analysis
- There are two contents in this paper : one is solve the control differential equation of box girder " s shear lag by dq method , the other is rules of the shear lag for single - box - multiple - cell box girders . first we introduce what is shear lag and the status of research ; we introduce dq method and use dq method to solve several bridges in the third chapter ; also we introduce the software - ansys and analysis several bridges by ansys in chapter iii ; in chapter iv we assume several bridge models and get the stress distribution under concentrated load and distributed load ; we summarize the paper in chapter v and propose the advancing direction of shear lag
- In this paper , a generalized hybrid finite strip method is deduded for analyzing the shear lag effect in box girders . it has the advantage of the generalized finite strip method and hybrid stress element . shear lag effect in thin - walled box girder is analyzed with this method and stiffness matrix of generalized hybrid finite strip element is deduced . a calculating program for thin - walled box girder " s generalized hybrid finite strip method is compiled with fortran language and performed in visual fortran environment of pc computer . a typical example demonstrates that the proposed method has higher accuracy and efficiency , is suitable for analysis of shear lag effect in box girders
- Thirdly , in this thesis , the influence of concrete creep to the behaviors especially to the nonlinear behaviors of reinforced - concrete box girder has also been studied and the effect of creep on internal force , deformation , ultimate load capacity and shear lag of reinforced concrete box - girder has been included , and the parameter such as loading duration , age of concrete and sustained load are considered
- In this paper , the golden phoenix bridge over meixi river in shantou - a long span curved box - girder bridge in xigang viaduct project - is taken as computing and analysing model . by using the spacial analysis software asbest ' 98 , its mechanic characteristic such as stress , shear lag and displacement is analyzed
- Based on the research of influenced parameters on constant and varying depth solid web box girder before , the shear lag aroused by the parameters including width - span ratio , outstanding flange on base slab and the position of the tendons are further studied . the investigation show that shear lag values diminish along with the decease of width - span ratio and the departure from the symmetrical axis of anchor position , but outstanding flange is contrary to the former
- This paper argues that it is the adoption of the new anti - literal force members that results in the specific behaviors of the system . by studying the shear lag phenomena of short leg walls , the author wants to show a peculiar aspect of this new structure system . after analyzing the working conditions of the short leg walls in the real structures , the paper deems that the plane - shell element can be used in establishing the finite element model of the short leg walls
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