In current reinforcements of crane beams, there are some practices that change simply supported crane beams to continuous beams.
在对现有厂房吊车梁的加固改造过程中，也有改变吊车梁受力体系，将简支吊车梁改为连续吊车梁的作法。
Currently, the domestic steel design software can only design and check crane beams with simply supported, there is no continuous crane beams software to meet the needs of projections.
但是，综观国内的钢结构设计软件，只是对简支吊车梁进行设计验算，还没有一款针对连续钢吊车梁的设计软件以满足工程建设的需要。
This paper discussed the wreck of the small pole of portal crane is because the small pole supported greater add working stress in range - changing process.
本文论述了门座起重机小拉杆的损坏是由于在起重机变幅过程中，小拉杆承受较大的附加应力所致。
This paper discussed the wreck of the small pole of portal crane is because the small pole supported greater add working stress in range - changing process.
本文论述了门座起重机小拉杆的损坏是由于在起重机变幅过程中，小拉杆承受较大的附加应力所致。
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