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truss arch model
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     Construction of curvature-adjustable arch truss
     吴家嘴大桥可调曲率桁式拱架施工设计
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     ON FUNCTIONAL MECHANISM OF TRUSS ARCH STRUCTURE
     桁架拱若干工作机理的探讨
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     Calculation Methods of Shear Strength on Truss-arch Model
     基于桁架拱模型的抗剪承载力计算方法
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     The four truss arch structures are compared, the half-through model is recommendable.
     对上承、中承、下承、复拱四种型式的桁架拱做了综合评价,重点推荐了中承式桁架拱。
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     Analysis of deformation of RC frame short columns based on truss arch model
     基于桁架-拱模型的RC框架短柱变形分析
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In this paper, the shear failure modes and behavior of deep beams (l/h≤2), short beams (l/h=2~5) and shallow beams (l/h>5) are discussed, and the "truss-arch" model is suggested to analyze the shear capacity of beams. Using the failure criterion of concrete in biaxial compression and considering the effects of shear span ratio, span depth ratio, vertical web reinforcement and horizontal web reinforcement, the formulas for predicting shear capacity of the beams are established. Through simplification...

In this paper, the shear failure modes and behavior of deep beams (l/h≤2), short beams (l/h=2~5) and shallow beams (l/h>5) are discussed, and the "truss-arch" model is suggested to analyze the shear capacity of beams. Using the failure criterion of concrete in biaxial compression and considering the effects of shear span ratio, span depth ratio, vertical web reinforcement and horizontal web reinforcement, the formulas for predicting shear capacity of the beams are established. Through simplification of analysis, the suggested unified formulas for calculating shear capacity of deep beams, short beams and shallow beams in design are also derived. The calculating results of these formulas show a good agreement with those of the tests. Furthermore, the formulas can be linked up with the formulas of deep beams and shallow beams given in chinese code for design of concrete structures (GBJ 10-89).

本文分析了钢筋混凝土深梁(l/h≤2)、短梁(l/h=2~5)和浅梁(l/h>5)的受剪机理和破坏特点,提出了考虑深梁、短梁和浅梁受力特点的桁架拱受力模型,引用混凝土在双向应力状态下的强度准则求出了考虑剪跨比、跨高比、垂直腹筋和水平腹筋影响的受剪承载力计算公式。通过简化分析给出了钢筋混凝土深梁、短梁和浅梁受剪承载力的实用统一计算公式,该公式与试验结果符合良好,并能与现行规范GBJ10-89中深梁和浅梁受剪承载力公式衔接。

In this paper,the behavior and the factors affecting the shear capacity of reinforced concrete deep beams,short beams and shallow beams are discussed in detail.Based on the theory of“truss-arch"model and the test results available at home and abroad,the calculating formulas for shear capacity of reinforced deep beams,short beams and shallow beams under both concentrated and distributed loads are given,and these formulas may be the reference for revision of P.R.C.code. 

密切配合我国混凝土结构设计规范修订的需要,较详细地分析了钢筋混凝土深梁、短梁和浅梁受剪破坏特点及影响受剪承载力的主要因素。在桁架—拱受力模型分析的基础上利用我国剪切专题组和国外学者试验数据并结合高强混凝土发展的需要,给出了用混凝土抗拉强度ft表示的钢筋混凝土深梁、短梁和浅梁受剪承载力计算公式,供规范修订参考。

The shear strength design equations from the truss-arch model in AIJ structural design guidelines for reinforced concrete ductility buildings is analyzed,and a systematic exposition for mechanics conceptions and characteristics of the model is introduced.

简要介绍和分析了日本建筑学会《钢筋混凝土建筑保证延性型抗震设计指南》中采用的斜截面受剪承载力计算模式,就其物理力学意义、特点作了说明。

 
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