STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS最新文献_第6页

ON THE CRITERIA FOR THE OCCURRENCE OF LOAD REDISTRIBUTION IN THE SILO FILLER FROM SEISMIC IMPACTS, METHODS FOR DETERMINING PARAMETERS AND THE ASSOCIATED LATERAL PRESSURE 讨论了筒仓填料在地震作用下发生荷载重分布的判据、参数确定方法及相关侧压力

STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS Pub Date : 2022-04-25 DOI: 10.37538/0039-2383.2022.5.2.12

V. Sharkov

引用次数: 0

OPTIMIZATION OF TRUSS STRUCTURES WITH CHORDS OF PENTAGONAL PROFILE PIPES ISOSCELES AND EQUILATERAL 五角形管、等腰管和等边管弦桁架结构优化

STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS Pub Date : 2022-04-25 DOI: 10.37538/0039-2383.2022.5.54.62

A. Marutyan

{"title":"OPTIMIZATION OF TRUSS STRUCTURES WITH CHORDS OF PENTAGONAL PROFILE PIPES ISOSCELES AND EQUILATERAL","authors":"A. Marutyan","doi":"10.37538/0039-2383.2022.5.54.62","DOIUrl":"https://doi.org/10.37538/0039-2383.2022.5.54.62","url":null,"abstract":"The article determines the specified values of optimal parameters of pentagonal profile pipes (bent-welded profiles), equally stable out of and within the truss structure. The efficiency and rationality of their use in chord elements are shown due to the functionality of the layout design of cross sections, including one flange (horizontal face), a pair of walls (vertical faces) and a pair of inclined faces symmetrically arranged to the vertical at angles of 45° in the first modification (equilateral) and 60° in the second modification (isosceles). Both modifications disclose the certain prospect for high functional layout design in the updated faceless nodes typical for truss structures made of tubular profiles. The article gives the comparative calculation of the design coefficients and the averaged coefficients of the use of chord core elements made of pentagonal profiles with the example of their implementation in the same semi-truss, when the number of unification zones coincides. A noticeable decrease in the mass (weight) and reduction of the structural material (steel) of the chords and, as a consequence, the entire structure was revealed by the increased values of static (geometric) characteristics of the design sections. The acceptable correctness of the approximate calculation method is confirmed for its application in solving optimization and variant problems as well as at different stages of load-bearing structures’ design.","PeriodicalId":273885,"journal":{"name":"STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131223814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

LINEAR THEORY OF ELASTICITY WITH QUADRATIC SUMMAND 弹性的二次求和线性理论

STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS Pub Date : 2022-02-28 DOI: 10.37538/0039-2383.2022.1.29.36

S. V. Bakushev

{"title":"LINEAR THEORY OF ELASTICITY WITH QUADRATIC SUMMAND","authors":"S. V. Bakushev","doi":"10.37538/0039-2383.2022.1.29.36","DOIUrl":"https://doi.org/10.37538/0039-2383.2022.1.29.36","url":null,"abstract":"We suggest a linear theory version based on Taylor decompositions for stresses and power-series for quadratic summand deformations. Thus, static equations of equilibrium in stresses are written in the form of the second-order partial derivatives differential equations. The resolving equations of equilibrium in displacements are represented in the form of the third order partial derivatives differential equations. The physical equations in this version of the linear theory of elasticity are written in the same way as in the classical linear theory of elasticity. Equilibrium equations, along with other parameters – physical constants of the medium – contain minor parameters dx, dy, dz, the value of which, as shown by numerical modelling, has little effect on the nature of the stress-strain state. It is suggested to use experimental data to determine them. Along with the formulating of the basic equations of the three-dimensional theory of elasticity, particular cases of the stress-strain state of elastic continuous medium are considered: uniaxial stressed state; uniaxial deformed state; flat deformation; generalized plane stress state. Determination of the stressed and deformed state of a thin elastic bar by integrating the resolving equations in stresses and displacements is considered as examples. The suggested version of the linear theory of elasticity, due to the quadratic summand in Taylor decompositions for stresses and in power-series for deformations, expands the classical linear theory of elasticity and, with an appropriate experimental justification, can lead to new qualitative effects in the calculation of elastic deformable bodies.","PeriodicalId":273885,"journal":{"name":"STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120951511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Static calculation of the stability of the lenticular membrane-pneumatic coating of the structure 透镜膜-气动涂层结构稳定性的静力计算

STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS Pub Date : 2022-02-28 DOI: 10.37538/0039-2383.2022.1.14.20

A. Kim, M.F. Amoyn, V. E. Khapilin

引用次数: 0

NONLINEAR CALCULATION OF A REINFORCED CONCRETE BEAM ON AN ELASTIC BASE USING THE “STIFFNESS–CURVATURE” RELATIONSHIP 用“刚度-曲率”关系对弹性基础上的钢筋混凝土梁进行非线性计算

STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS Pub Date : 2022-02-28 DOI: 10.37538/0039-2383.2022.1.37.46

O. Kozunova

{"title":"NONLINEAR CALCULATION OF A REINFORCED CONCRETE BEAM ON AN ELASTIC BASE USING THE “STIFFNESS–CURVATURE” RELATIONSHIP","authors":"O. Kozunova","doi":"10.37538/0039-2383.2022.1.37.46","DOIUrl":"https://doi.org/10.37538/0039-2383.2022.1.37.46","url":null,"abstract":"A reinforced concrete beam on an arbitrary elastic base under the action of an external load is considered. Its movements and the distribution of internal forces in its sections are determined. The calculation is performed by the variation-difference method using finite differences of increased accuracy. Initially, the beam is divided into identical rectangular sections and a stiffness matrix is constructed for the elastic base as the inverse of the malleability matrix. The functional of the total potential energy is compiled as the sum of the energy of the bending of the beam, the deformation of the elastic base and the work of the external load in the form of a quadratic function of the displacements of the centers of the sections on the beam. By differentiating the latter for each displacement, a system of linear algebraic equations is formed, the solution of which is the displacement of the centers of the sections on the beam. An iterative algorithm is organized, where at each iteration, according to the “stiffness-curvature” relation ship, the bending stiffness on each section of the beam is specified. Examples of calculation of rectangular cross-section beams on an elastic layer and a Winkler base are given.","PeriodicalId":273885,"journal":{"name":"STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131649577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

ECOLOGY OF BUILDINGS. ANALYSIS AND METHODS OF BUILDING DESIGN 建筑生态学。建筑设计的分析与方法

STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS Pub Date : 2022-02-28 DOI: 10.37538/0039-2383.2022.1.65.74

I.A. Voziakou

引用次数: 0

DEVELOPMENT OF A REFINED P-BOX AS A RANDOM VARIABLE MODEL IN PROBLEMS OF STRUCTURAL RELIABILITY ANALYSIS 结构可靠度分析问题中改进p-box随机变量模型的发展

STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS Pub Date : 2022-02-28 DOI: 10.37538/0039-2383.2022.1.20.28

A. Soloveva, S. Solovev

引用次数: 1

THE FIRST TEXTBOOK ON PROJECT ELECTRONIC CALCULATIONS 第一本工程电子计算教科书

STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS Pub Date : 2022-02-28 DOI: 10.37538/0039-2383.2022.1.76.77

V. Zaikin

引用次数: 0

CONTACT PROBLEM FOR INCLINED PLATE CONDITIONS OF EQUALITY OF ITS SOME DISPLACEMENT 斜板的接触问题在其一定位移相等的条件下

STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS Pub Date : 2022-02-28 DOI: 10.37538/0039-2383.2022.1.54.58

S. V. Bosakov, Y. N. Kotov

引用次数: 0

Total stability of two constant section beams. Development of payment provisions 两个等截面梁的总稳定性。付款条款的制定

STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS Pub Date : 2022-02-28 DOI: 10.37538/0039-2383.2022.1.4.13

M. Farfel, M. Gukova, A. E. Svyatoshenko

{"title":"Total stability of two constant section beams. Development of payment provisions","authors":"M. Farfel, M. Gukova, A. E. Svyatoshenko","doi":"10.37538/0039-2383.2022.1.4.13","DOIUrl":"https://doi.org/10.37538/0039-2383.2022.1.4.13","url":null,"abstract":"The paper presents the derivation of formulas for the method of calculating bent elements for general stability, given in SP 16.13330, which is based on the theory of thin-walled elastic rods and the system of differential equations of V. Z. Vlasov. Formulas are given for a single-span beam with a hinged mounting of supports. A general equation has been compiled for calculating the bending stability coefficient φ_1, which allows adapting the requirements of SP16.13330 standards to various types of load action in the beam span. The results are presented for twenty-five different types of external load action. The formulas take into account the arbitrary location of the load along the height of the beam section, from the lower edge of the lower belt to the upper edge of the upper belt. The values of the critical moment M_cr, at which a new form of equilibrium state arises in the beam, are determined, according to the conclusions of the work [6]. The critical moment M_cr is calculated in the form of a stability problem of the first kind – the loss of a stable position of an element of a rectilinear shape (the load acts along the line of the bending center, the neutral axis of the beam is rectilinear, the material is elastic). The formulas of the presented table can be used to perform verification calculations.","PeriodicalId":273885,"journal":{"name":"STRUCTURAL MECHANICS AND ANALYSIS OF CONSTRUCTIONS","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128892846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1