1) straight web box girder
直腹箱梁
3) warren box girder
斜腹箱梁
1.
Through contrast analysis of stress value,the paper found warren box girder can improve prestress and precompression of prestress concrete box girder under border and box girder bearing capacity,reduce the distribution of prestress wire,saving construction quantity.
通过对同等条件的直腹箱梁和斜腹箱梁的应力值对比分析，提出将直腹箱梁改为斜腹箱梁后，可以提高预应力混凝土箱梁下缘的预压应力，提高箱梁承载力，降低预应力钢绞线的配置，节省工程数量。
4) The web of the box-girder
箱梁腹板
1.
Through the comparison assay about the vertical prestressed steel wires and wire in the web of the box-girder,we research the rules of the two vertical prestressed steels and analyse the features and the prestress loss of the two different vertical prestressed systems.
通过对箱梁腹板竖向预应力钢绞线和精轧螺纹钢筋的对比试验,研究钢绞线和精轧螺纹钢筋竖向预应力规律,分析两种不同竖向预应力体系的特征和预应力损失,结果表明,钢绞线和精轧螺纹钢筋的第一次张拉预应力损失率和两者长期损失率基本相同,竖向预应力钢绞线的第二次张拉效果明显,预应力损失率较第一次张拉减小近1/2,对于控制主拉应力较大的高腹板的竖向预应力可靠度较大,反映了钢绞线作为竖向预应力筋的实际意义,为工程设计提供参考依据。
5) fish-bellied box beam
鱼腹式箱梁
6) double-web box beam
双腹箱形梁
补充资料：ANSYS壳单元分析箱梁
! Analysis a box beam section with shell elements of ANSYS
! 用ansys的壳体单元分析箱梁
! Box dimension: 10*4*4m with shell thickness of 0.04m
! By Lu Xinzheng, Depart. Civil Engineering, Tsinghua University, Beijing
! 陆新征，清华大学土木系
! Aug. 2004
! Define the Element
! 定义单元
/PREP7
!*
ET,1,SHELL93
!*
! Define the section for shells
! 定义壳单元截面
R,1,.04, , , , , ,
!*
! Define the material
! 定义材料
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,200e9
MPDATA,PRXY,1,,.3
! Setup the model
! 建模
! Define the keypoints
! 定义关键点
k,1,0,0,0
k,2,4,0,0
k,3,4,4,0
k,4,0,4,0
! Define the lines
! 定义线
l,1,2
l,2,3
l,3,4
l,4,1
! Define the section area
! 定义截面
a,1,2,3,4
! 用ansys的壳体单元分析箱梁
! Box dimension: 10*4*4m with shell thickness of 0.04m
! By Lu Xinzheng, Depart. Civil Engineering, Tsinghua University, Beijing
! 陆新征，清华大学土木系
! Aug. 2004
! Define the Element
! 定义单元
/PREP7
!*
ET,1,SHELL93
!*
! Define the section for shells
! 定义壳单元截面
R,1,.04, , , , , ,
!*
! Define the material
! 定义材料
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,200e9
MPDATA,PRXY,1,,.3
! Setup the model
! 建模
! Define the keypoints
! 定义关键点
k,1,0,0,0
k,2,4,0,0
k,3,4,4,0
k,4,0,4,0
! Define the lines
! 定义线
l,1,2
l,2,3
l,3,4
l,4,1
! Define the section area
! 定义截面
a,1,2,3,4
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条