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（東南大學(xué)土木工程學(xué)院  南京 210096）

［提要］  施工期間鋼筋混凝土結(jié)構(gòu)的承力體系是由低齡期的混凝土構(gòu)件和模板支撐系統(tǒng)組成。目前，采用有限元方法和簡(jiǎn)化方法來計(jì)算豎向荷載在混凝土構(gòu)件和模板支撐間的分布。在有限元方法和簡(jiǎn)化方法的基礎(chǔ)上，提出一種近似計(jì)算方法。根據(jù)施工過程，確定一些基本結(jié)構(gòu)，通過有限元方法計(jì)算出基本結(jié)構(gòu)中豎向荷載在混凝土構(gòu)件和模板支撐間的分配系數(shù)，然后按照施工過程進(jìn)行分析，能夠簡(jiǎn)便地計(jì)算出施工期間混凝土構(gòu)件和模板支撐所承受的荷載。

［關(guān)鍵詞］  鋼筋混凝土結(jié)構(gòu)  施工階段  荷載傳遞  近似方法  基本結(jié)構(gòu)

Approximate Method of Vertical Load Distribution Analysis of Reinforced Concrete Structures During Construction/Cong Shuping, Liang Shuting (College of Civil Engineering, Southeast University, Nanjing 210096, China)

Abstract:The bearing structure of reinforced concrete building during construction consists of formwork shores and early age concrete members. Now, the FEM and simple method are used to calculate the distribution of vertical load between concrete members and formwork shores. An approximate method is put forward to calculate the distribution of vertical load based on FEM and simple method. The primary structures are obtained according to the construction process. The coefficients of vertical load distribution between concrete members and formwork shores are confirmed through the FEM. The loads of concrete members and formwork shores could be obtained conveniently by the approximate method.

Keywords:reinforced concrete structures; construction process; load distribution; approximate method; primary structure

*江蘇省“六大人才高峰”項(xiàng)目。