- 摘 要
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閆 鑫1， 陳 凱1， 董海江1， 胡長明2
（1陜西冶金設(shè)計研究院有限公司，西安710032;2西安建筑科技大學(xué)，西安710055）[摘要] 針對澆筑區(qū)域厚板特點(局部達到1500mm)，通過現(xiàn)場實測，采取多種測量手段較全面地對結(jié)構(gòu)施工過程中的荷載、材料、內(nèi)力、變形等特征進行全周期量測，力圖全面準(zhǔn)確把握模板支架體系在施工期澆筑混凝土過程中的基本特征。通過對現(xiàn)場實測數(shù)據(jù)的分析和整理，獲得了結(jié)構(gòu)在施工過程中的基本特征以及荷載傳遞和變化規(guī)律。發(fā)現(xiàn)立桿在澆筑初期應(yīng)力劇增，養(yǎng)護期間應(yīng)力變化復(fù)雜，故應(yīng)避免在這一階段板面出現(xiàn)應(yīng)力集中；剪刀在澆筑和養(yǎng)護期間應(yīng)力一直增加，其在維護整個模板體系穩(wěn)定中起關(guān)鍵作用，在以后的模板體系設(shè)計和搭設(shè)過程
中應(yīng)重視剪刀撐的設(shè)置。
[關(guān)鍵詞] 現(xiàn)場實測；施工階段；模板體系；現(xiàn)澆混凝土；應(yīng)力集中
中圖分類號：TU392.3 文獻標(biāo)識碼：A 文章編號：1002-848X(2011) S2-0487-04Study on measured characteristics of tall formwork support system in construction
Yan Xin1, Chen Kai1, Dong Haijiang1, Hu Changming2
(1 Shaanxi Metallurgical Design & Research Institute Co., Ltd., Xi' an 710032, China; 2 Xi' an University of Arclutecture and Technology, Xi' an 710055, China)Abstract: The characteristics of the load, materials, intemal forces, deformation in construction process were measured on-site through taking diverse means in a complete period, in order to fully and accurately grasp the basic characteristics of the formwork support system in the construction phase of pouring concrete. Through analyzing and comparing the data obtained on-site, the basic features during the construction process, load transfer and variation laws were obtained. It is discovered that the stress of the pole increases during the pouring concrete. The stress changes complexly during maintenance. So plate surface stress concentration should be avoided at tlus phase. The stress of scissors support has increased during the pouring and conservation. It plays a key role in maintaining the stability of whole template system. The settings of scissors should be paid more attention during the formwork support system design and erection.
Keywords: scene measurement; construction phase; formwork support system; cast-in-place concrete; stress concentration
