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預(yù)應(yīng)力混凝土管樁和空心方樁軸心受壓承載力計(jì)算討論
湯關(guān)祚1,2,匡紅杰1,2
摘 要

 

1 蘇州混凝土水泥制品研究院有限公司, 蘇州 215004; 2 蘇州中材建筑建材設(shè)計(jì)研究院有限公司, 蘇州 215004

摘要]對(duì)預(yù)應(yīng)力混凝土管樁和預(yù)應(yīng)力混凝土空心方樁(均簡(jiǎn)稱預(yù)應(yīng)力樁)樁身軸心受壓承載力設(shè)計(jì)值(簡(jiǎn)稱軸壓設(shè)計(jì)值)的兩種計(jì)算方法、預(yù)應(yīng)力樁綜合折減系數(shù)及預(yù)應(yīng)力樁成樁工藝系數(shù)的取值進(jìn)行了討論,說(shuō)明了根據(jù)國(guó)內(nèi)現(xiàn)行的一些技術(shù)規(guī)程、標(biāo)準(zhǔn)、圖集等計(jì)算的預(yù)應(yīng)力樁軸壓設(shè)計(jì)值與實(shí)際工程經(jīng)驗(yàn)不符,并對(duì)其提出了較合理的計(jì)算方法和觀點(diǎn)。研究結(jié)果對(duì)預(yù)應(yīng)力樁的合理應(yīng)用和技術(shù)規(guī)程、標(biāo)準(zhǔn)、圖集等的編制或修訂具有一定意義。

關(guān)鍵詞]預(yù)應(yīng)力樁; 軸心受壓承載力設(shè)計(jì)值; 綜合折減系數(shù); 成樁工藝系數(shù)

中圖分類號(hào):TU525       文獻(xiàn)標(biāo)識(shí)碼:A       文章編號(hào):1002-848X(2014)08-0006-04

Discussion on the calculation methods of axial compression bearing capacity of prestressed spun concrete piles and prestressed spun concrete square piles

Tang Guanzuo1,2, Kuang Hongjie1,2

1 Suzhou Concrete Cement Products Institute Co., Ltd., Suzhou 215004, China; 2 Suzhou Sinoma Architectural and Building Materials Design and Research Institute Co., Ltd., Suzhou 215004, China

Abstract: The two different calculation methods for the axial compression bearing capacity design value (axial compression design value for short) of the prestressed spun concrete piles and prestressed spun concrete square piles(both prestressed spun piles for short), the value of synthetical reduction coefficient and the value of the pile construction process coefficient of the prestressed spun pile were discussed. Meanwhile, it was pointed out that the axial compression  design values of the prestressed spun pile by calculation methods of the current domestic technical regulations, standards, atlas and so on were not consistent with the engineering experience values. Some reasonable calculation methods and views for the design values were put forward to solve this problem. The results have certain significance for the reasonable application of prestressed spun piles and establishments or revisions of technical regulations, standards and atlas.

Keywords: prestressed spun pile; axial compression bearing capacity design value; synthetical reduction coefficient; pile construction process coefficient

作者簡(jiǎn)介:湯關(guān)祚,教授級(jí)高級(jí)工程師,享受政府特殊津貼,Email82950439@qq.com。

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