几何尺寸与公差论坛------致力于产品几何量公差标准GD&T (GDT:ASME)|New GPS(ISO)研究/CAD设计/CAM加工/CMM测量 - 查看单个帖子 - post tensioningi estimating losses in tendond

post tensioningi estimating losses in tendond
need the latest and greatest methods of estimating friction forces and elongation in unbonded post tensioning systems for parking garage and building slabs, us practice. what are the standard methods for these issues in your office? can you direct me to a publication or two that has the latest info?
thank you.
check out our whitepaper library.
go to your prestressed concrete design codes. they give factors for wobble and friction. (e.g. bs5400) these parameters do not change much. if you are concerned that modern materials are diferent talk to the manufacurers of the potential systems. beware that manufacturers give the best their system can do and in construction you may not obtain their low values or the system may be different.
thanks oldhand, i was able to obtain wobble and friction values from the supplier. regards

2009-09-15, 01:49 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	post tensioningi estimating losses in tendond post tensioningi estimating losses in tendond need the latest and greatest methods of estimating friction forces and elongation in unbonded post tensioning systems for parking garage and building slabs, us practice. what are the standard methods for these issues in your office? can you direct me to a publication or two that has the latest info? thank you. check out our whitepaper library. go to your prestressed concrete design codes. they give factors for wobble and friction. (e.g. bs5400) these parameters do not change much. if you are concerned that modern materials are diferent talk to the manufacurers of the potential systems. beware that manufacturers give the best their system can do and in construction you may not obtain their low values or the system may be different. thanks oldhand, i was able to obtain wobble and friction values from the supplier. regards __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]