form bracing 中文意思是什麼
form bracing
解釋
模板支撐-
It is necessary to study the construction technology of concrete cable bent towers. the dissertation introduces construction sequence, construction methods ( supporter construction, slip - form construction, climbing formwork and turn - over formwork construction ), anti - overturning measures of the tilted tower, crossbeams " construction and its bracing structure
本文主要介紹了混凝土塔柱的施工順序、施工方法（支架法、滑模法、爬模法和翻模法） 、傾斜塔柱的施工抗傾措施、橫梁施工及支撐系統。 -
Except form ties bolt, lateral bracing should set up for supporting that has three lines which is up, medium and down
11除對拉螺栓外，設置輔助側向支撐進行支頂，上中下三道。 -
The tower shafts, most of which are hollow and varying in cross section, and altitudinal construction bring trouble to the form work and the stress of strand wire. and the cracks on the crossbeams will be caused by the following - deformation of the bracing structure joints, elastic deformation ， uneven settlement and temperature changes. the additional stress of the base slab and the foundation is caused by the deviation of cable bent tower construction
但大跨度橋梁混凝土索塔施工設備進場及現場管理都比較困難；塔柱多為空心變截面，且為高空作業，給模板工程及預應力張拉帶來一定困難；支撐系統連接的間隙變形、彈性變形、不均勻沉降以及環境溫差可導致橫梁裂縫；索塔施工偏位會引起的承臺和基礎的附加應力，對加勁梁的架設影響大；懸吊結構未完體系（架設時）施工階段的風致振動往往影響到施工的安全和質量；實心塔柱部分體積較大，易產生溫度裂縫。 -
In the article, the author states the present situation in deep excavation and analyses the form of earth force, water force, model of calculation and deformation caused by excavating. in details, the author introduces a new technique, which is called circular beams bracing system in deep excavation, states the steps of calculation, construction and inspect
本文系統的闡述了目前深基坑支護的狀況，對基坑支護中的土壓力、水壓力、基坑開挖對地面沉降的影響以及目前常用的計算方法作了詳細介紹；著重對新型環梁支護體系的計算、監測方法和施工工藝進行了探討。
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