介绍了桁架式管架的功能及其与管线的关系，管线之间的牵制作用及牵制系数的取值，桁架式管架的计算假定。对管架的设计应该从“技术先进、经济合理、安全可靠、美观实用”的原则出发，同时，设计管架时，应与工艺与管道等专业共同商讨，合理确定管架的平面布置、高度和跨度。力争达到较好的经济、实用和美观的效果。%The function of the trussed pipe racks was described as well as its relationship with the pipeline, the interaction of each pipelines and the value selection of the restrain coefficients, the calculation hypothesis of the trussed pipe racks. The pipe racks should be designed from"technologically advanced, economical, safe and reliable, beautiful and practical" principle. Moreover, during design of the pipeline, we should discuss with the technology designer and the pipeline designer to make the layout, height and span reasonable.
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