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Torsion of structural cores on deformable foundations 可变形基础上结构核心的扭转
Building Science Pub Date : 1975-03-01 DOI: 10.1016/0007-3628(75)90008-0
A. Coull
{"title":"Torsion of structural cores on deformable foundations","authors":"A. Coull","doi":"10.1016/0007-3628(75)90008-0","DOIUrl":"10.1016/0007-3628(75)90008-0","url":null,"abstract":"<div><p>An approximate method is presented for assessing the influence of foundation deformations on the warping stresses of a shear core subject to torsional loading. The core is assumed supported on elastic foundations such that the vertical displacements are proportional to the imposed forces. Solutions have been derived for two general forms of loading, a concentrated torque at any level, and a distributed twisting moment whose intensity is defined as any polynomial in the height coordinate. A numerical example is given to illustrate the reduction in warping stresses which can occur as a result of relative foundation deformations.</p></div>","PeriodicalId":9442,"journal":{"name":"Building Science","volume":"10 1","pages":"Pages 57-64"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0007-3628(75)90008-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81157003","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: 5
Approximate analysis of asymmetric wall-frame structures 非对称框架-墙结构的近似分析
Building Science Pub Date : 1975-03-01 DOI: 10.1016/0007-3628(75)90005-5
A. Rutenberg , A.C. Heidebrecht
{"title":"Approximate analysis of asymmetric wall-frame structures","authors":"A. Rutenberg ,&nbsp;A.C. Heidebrecht","doi":"10.1016/0007-3628(75)90005-5","DOIUrl":"10.1016/0007-3628(75)90005-5","url":null,"abstract":"<div><p>An approximate hand method is proposed for lateral force analysis of asymmetric wall-frame structures having constant properties along the height. The coupled torsion-bending differential equations of equilibrium are decoupled using an orthogonal transformation. The deformations and stress resultants in the wall and frame assemblies are obtained by linearly combining the respective coefficients of each of the solved decoupled equations, stresses in members being obtained by simple force distribution formulae. Non-dimensional coefficients for deflection and stress resultants are given for a practical range of system parameters. The method is illustrated by a numerical example.</p></div>","PeriodicalId":9442,"journal":{"name":"Building Science","volume":"10 1","pages":"Pages 27-35"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0007-3628(75)90005-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80110073","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: 43
Analysis of spiral stairs supported on a central column 中心柱支撑的螺旋楼梯分析
Building Science Pub Date : 1975-03-01 DOI: 10.1016/0007-3628(75)90006-7
A. Rutenberg
{"title":"Analysis of spiral stairs supported on a central column","authors":"A. Rutenberg","doi":"10.1016/0007-3628(75)90006-7","DOIUrl":"10.1016/0007-3628(75)90006-7","url":null,"abstract":"<div><p>A method is proposed for the analysis of a central column supporting uniformly loaded cantilevered stairs. Equations for determination of bending moments about two perpendicular axes for hinged and fixed support conditions are given. Tabulated results for these moments and their resultant are presented for the range of spiral turn angles encountered in practice. Maximum resultant span moments obtained by means of the Newton-Raphson method are also given in tabular form. Finally, the method is illustrated by a numerical analysis of three-storey spiral stairs.</p></div>","PeriodicalId":9442,"journal":{"name":"Building Science","volume":"10 1","pages":"Pages 37-42"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0007-3628(75)90006-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82854461","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
Flexural strength of prestressed concrete beams — A graphical solution 预应力混凝土梁的抗弯强度。图形解决方案
Building Science Pub Date : 1975-03-01 DOI: 10.1016/0007-3628(75)90010-9
S. Rajasekaran
{"title":"Flexural strength of prestressed concrete beams — A graphical solution","authors":"S. Rajasekaran","doi":"10.1016/0007-3628(75)90010-9","DOIUrl":"10.1016/0007-3628(75)90010-9","url":null,"abstract":"<div><p>A simple graphical solution is presented for the determination of the reinforcement stress in the beam at failure to evaluate the flexural strength of prestressed concrete beams with non-rectangular compressed concrete section consisting of linear segments with or without supplementary non-prestressed reinforcement. This is an extension of the approach presented bu Warwaruk for the case of rectangular beams without non-prestressed reinforcement <em>[1]</em>. It is general in scope; values of reinforcement stress at failure can be obtained for various conditions. This method can be adopted for design purposes.</p></div>","PeriodicalId":9442,"journal":{"name":"Building Science","volume":"10 1","pages":"Pages 73-78"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0007-3628(75)90010-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83190222","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
Manual of tropical housing and building. Part one: Climatic design 热带房屋和建筑手册。第一部分:气候设计
Building Science Pub Date : 1975-03-01 DOI: 10.1016/0007-3628(75)90012-2
C.B. Wilson
{"title":"Manual of tropical housing and building. Part one: Climatic design","authors":"C.B. Wilson","doi":"10.1016/0007-3628(75)90012-2","DOIUrl":"10.1016/0007-3628(75)90012-2","url":null,"abstract":"","PeriodicalId":9442,"journal":{"name":"Building Science","volume":"10 1","pages":"Pages 85-86"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0007-3628(75)90012-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77825242","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: 3
List of contents and author index, volume 10, 1975 目录和作者索引，第10卷，1975年
Building Science Pub Date : 1975-01-01 DOI: 10.1016/0007-3628(75)90043-2
{"title":"List of contents and author index, volume 10, 1975","authors":"","doi":"10.1016/0007-3628(75)90043-2","DOIUrl":"https://doi.org/10.1016/0007-3628(75)90043-2","url":null,"abstract":"","PeriodicalId":9442,"journal":{"name":"Building Science","volume":"10 ","pages":"Pages i-iv"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0007-3628(75)90043-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137053191","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
The independent core method—A new technique for the determination of moisture content 独立核心法——一种测定水分的新技术
Building Science Pub Date : 1974-12-01 DOI: 10.1016/0007-3628(74)90030-9
A. J. Newman
{"title":"The independent core method—A new technique for the determination of moisture content","authors":"A. J. Newman","doi":"10.1016/0007-3628(74)90030-9","DOIUrl":"https://doi.org/10.1016/0007-3628(74)90030-9","url":null,"abstract":"","PeriodicalId":9442,"journal":{"name":"Building Science","volume":"29 1","pages":"309-313"},"PeriodicalIF":0.0,"publicationDate":"1974-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80144653","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: 3
The diagonal cracking strength of prestressed I — beams with unreinforced webs 无加筋腹板预应力工字梁的斜向开裂强度
Building Science Pub Date : 1974-12-01 DOI: 10.1016/0007-3628(74)90031-0
P. Bhatt
{"title":"The diagonal cracking strength of prestressed I — beams with unreinforced webs","authors":"P. Bhatt","doi":"10.1016/0007-3628(74)90031-0","DOIUrl":"https://doi.org/10.1016/0007-3628(74)90031-0","url":null,"abstract":"","PeriodicalId":9442,"journal":{"name":"Building Science","volume":"423 1","pages":"315-323"},"PeriodicalIF":0.0,"publicationDate":"1974-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73610370","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
Determining the moisture content on concrete: the use of electrical resistance methods 混凝土含水量的测定：电阻法的使用
Building Science Pub Date : 1974-12-01 DOI: 10.1016/0007-3628(74)90028-0
E.H. Waters
{"title":"Determining the moisture content on concrete: the use of electrical resistance methods","authors":"E.H. Waters","doi":"10.1016/0007-3628(74)90028-0","DOIUrl":"https://doi.org/10.1016/0007-3628(74)90028-0","url":null,"abstract":"<div><p>Comparative measurements are reported of the moisture content, during air drying, of concrete slabs as measured by </p><ul><li><span>1.</span><span><p>(a) a commercial electrical resistance “moisture meter” complying with the requirements of Australian Standard CA<em>37-1966</em></p></span></li><li><span>2.</span><span><p>(b) progressive weight loss to the atmosphere followed by oven drying.</p></span></li></ul><p>Wide divergence between the results from (a) and (b) were observed for all four concretes tested.</p><p>Lesser, but significant, differences were observed in the resistance-moisture relationships of otherwise identical concretes made with different brands of portland cement.</p><p>Resistance results from fixed depth electrodes showed a significant thickness effect; this disappeared if the electrode depths were made a fixed proportion of slab thickness. This is explained on the basis of diffusion theory.</p><p>No correlation could be found between cement composition and the resistance-moisture relationships of the concrete. This suggests that the physical structure of the cement paste may play a significant part in determining this relationship. It thus appears that the use of electrical resistance meters to determine the moisture content of concrete may produce very misleading results unless the meter is calibrated with concrete having the same characteristics as that to be tested.</p></div>","PeriodicalId":9442,"journal":{"name":"Building Science","volume":"9 4","pages":"Pages 289-297"},"PeriodicalIF":0.0,"publicationDate":"1974-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0007-3628(74)90028-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72210055","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: 2
The thermal radiation field 热辐射场
Building Science Pub Date : 1974-12-01 DOI: 10.1016/0007-3628(74)90024-3
D.A. McIntyre
{"title":"The thermal radiation field","authors":"D.A. McIntyre","doi":"10.1016/0007-3628(74)90024-3","DOIUrl":"https://doi.org/10.1016/0007-3628(74)90024-3","url":null,"abstract":"<div><p>It is possible to describe thermal radiation environment at a point in space using the concept of the radiation field. This paper derives the fundamental parameters of the field, and describes how they may be measured. The use of the radiation vector, or its equivalent the vector radiant temperature, is recommended as a measure of the asymmetry of the environment. The relevance of the field concept to thermal comfort studies is discussed.</p></div>","PeriodicalId":9442,"journal":{"name":"Building Science","volume":"9 4","pages":"Pages 247-262"},"PeriodicalIF":0.0,"publicationDate":"1974-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0007-3628(74)90024-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72210648","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: 17
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