The current research points out that for the CFCHS joints the linear extrapolation method can be used for chords,whereas the quadratic extrapolation method must be used for braces.The hot spot stress distributions on the CFCHS joints tend to be more uniform and their SCFs become smaller significantly,compared with the CHS joints.Axial tension on the brace puts the CFCHS joints at a disadvantage,which produces higher SCFs than axial compression.The effects of nondimensional geometric parameters β,τ and γ on SCFs of the chords of the CFCHS joints are basically the same as those of the CHS joints,but for the braces,there is a bit difference in the effects of parameters β,τ and γ between the two kinds of joints.Concrete has the function of improving the CFCHS joint rigidity and then decreasing SCFs which is expected to increase fatigue strength,but concrete strength grade does not exert significant influence on SCFs.

研究表明：CFCHS節(jié)點(diǎn)的熱點(diǎn)應(yīng)力，對主管可采用線性外推方法手机看片,你懂的，對支管需采用二次外推方法ww黄色一级视频；相比CHS節(jié)點(diǎn)，CFCHS節(jié)點(diǎn)的熱點(diǎn)應(yīng)力分布趨于均勻鲁鲁A片特级特色黄色影片，SCF顯著減芯饭粕谙吖劭础；CFCHS節(jié)點(diǎn)支管軸向受拉比受壓不利97精品久久久中文字幕免费，SCF增大66j8c；CFCHS節(jié)點(diǎn)幾何參數(shù)β，τ又黄又爽又刺激又色，γ對主管SCF的影響效應(yīng)與CHS節(jié)點(diǎn)基本一致黄片毛片试看，但是對支管SCF的影響效應(yīng)與CHS節(jié)點(diǎn)有些差異；混凝土的作用主要是改善CFCHS節(jié)點(diǎn)剛度欧美中文字幕观看，從而降低SCF，并預(yù)期可提高疲勞強(qiáng)度欧美欧美视频a√在线，但混凝土自身強(qiáng)度等級的高低沒有顯著影響節(jié)點(diǎn)的SCF国产午夜激无码AV毛片不卡国。

In the experimental study, 12 joints tests are completed, including 5 uniplanar X joints loaded with axial forces, 3 uniplanar X joints loaded with in-plane bending, 4 multiplanar XX-joints loaded with axial forces, with the emphasis on the influence of β and the existence of the out-of-plane braces, of which the multiplanar XX-joints tests is the first experiment project in china.

試驗(yàn)重點(diǎn)研究節(jié)點(diǎn)支主管寬度比β以及平面外支管荷載等因素對節(jié)點(diǎn)性能的影響，共進(jìn)行了3個(gè)足尺方管平面X型受壓節(jié)點(diǎn)一级少妇A片无，3個(gè)足尺方管平面X型受彎節(jié)點(diǎn)看片色色、2個(gè)方、圓管雜交平面X型受壓節(jié)點(diǎn)和4個(gè)足尺方管空間XX型節(jié)點(diǎn)試驗(yàn)樱花aⅴ一区二区三区四区，其中方管空間XX型相貫節(jié)點(diǎn)試驗(yàn)是國內(nèi)的首次試驗(yàn)一道本在视频线高清无码。

At first, the method used the finite element method to design the combination plan of submains and hollow forgings capable of meeting with the requirement of the douches in a micro-irrigation system that the water flux and water-discharging uniformity of the douches be equilibrated, and the pressure heads of the correspondent submain units; next, the parameters of the design and the pressure heads were input into the dynamic programming model and then the optimal combination design of the diameters of various orders of micro-irrigation pipes in the system as well as the pressure heads necessary to operate the system was obtained.

提出了一種基于有限元法和動態(tài)規(guī)劃法的微灌系統(tǒng)管網(wǎng)優(yōu)化設(shè)計(jì)方法，該方法先利用有限元法人人干人人操福利，設(shè)計(jì)出符合灌水器平均流量和灌水均勻度要求的支管與毛管參數(shù)組合方案国产一级无码毛片，及相應(yīng)的支管單元操作壓力水頭最新91视屏在线免费，然后將這些參數(shù)組合與支管單元操作壓力水頭代入動態(tài)規(guī)劃模型，即可設(shè)計(jì)出微灌系統(tǒng)各級管道管徑的最優(yōu)組合方案亚洲精品自拍视频网，并確定微灌系統(tǒng)所需的操作壓力水頭全国最大的黄色网站。

In order to study the influence of the rigidity of unstiffened tubular joints on load-bearing behavior and structural stability,the experimental research on axial rigidity and bending rigidity of the joints was performed,in combination with the practical demands of a steel tubular constructional project.

試驗(yàn)結(jié)果表明，當(dāng)支管與主管直徑相差較多時(shí)一级毛片免费看高清视频在线，節(jié)點(diǎn)軸向剛度和抗彎剛度均較弱日日夜夜,黄色视频，節(jié)點(diǎn)的半剛性能對結(jié)構(gòu)的受力性能尤其是整體穩(wěn)定性的影響不容忽視；當(dāng)支管與主管直徑接近時(shí)插操水视频，節(jié)點(diǎn)軸向剛度和抗彎剛度均較大狼友视频-首页，基本能夠滿足節(jié)點(diǎn)剛接的要求

A new designing method for sprinkle-irrigation laterals, in which the spacing of sprinklers can be changed with the outflow of sprinklers along the lateral, is developed.

在傳統(tǒng)的噴灌支管設(shè)計(jì)中，支管上各噴頭等間距布置www.xx日本黄色视频.com，但是沿支管灌水量不相等国产淑女色视频。為此提出一種實(shí)現(xiàn)沿支管灌水量相等，但允許噴頭間距變化的支管設(shè)計(jì)方法黄色网站免费看看。

This paper introduces a new process in which the T-outlet flange is formed from the metal main pipe with spe-cial revolving draw equipment,makes certain the shape of prefabricating hole,and presents the simple for-mulas of calcu lating process parameters of hole.

介紹了采用專用的旋拉設(shè)備加工管道T形支管凸緣成型新工藝毛片黄色视频在线，確定了預(yù)制孔的加工形狀，并給出其簡化的工藝尺寸參數(shù)計(jì)算公式正在播放麻豆国产AV，分析了旋拉設(shè)備主軸轉(zhuǎn)速要求免费的福利A片网站、進(jìn)給量參數(shù)及采用溫拉時(shí)加熱溫度的確定方法，旋拉支管凸緣的金屬性能等日本性爱不卡。

Drainage system Design of drainage system is it discharge way drain off water the sureness of the system to include; Calculation of the flow of second of design of the sanitary sewage drainage pipeline of the building ; Is it in charge of sideways to drain off water , water conservancy in charge ofed to set up calculate and in charge of pipeline slope , pipe diameter and sureness of elevation sideways, set up calculation to in charge of pipe diameter , is it confirm pipe diameter size and position and sewage waste water design of the inspection shaft after discharging of breather pipe to come from this.

消火栓給水系統(tǒng)消火栓給水系統(tǒng)的設(shè)計(jì)內(nèi)容具體包括：根據(jù)建筑物性質(zhì)選擇設(shè)計(jì)參數(shù)第一次处破女18分钟网站，包括每支水槍的射流量、消火栓的口徑亚洲国产成AV人天堂无码、水槍口徑91视频精彩、龍帶長度等；消火栓系統(tǒng)計(jì)算爱爱大学网址入口，具體包括消火栓的布置計(jì)算和消防立管和橫支管的水力計(jì)算欧美三级片免费看；減壓孔板的計(jì)算；消火栓設(shè)施的確定一级a做一级a做片性视，包括水泵結(jié)合起的設(shè)置亚州熟妇久久国内精品、消防水泵和泵房的要求。

In total, 13000 plastic footballers, 540 tubes of superglue and 50 tubes of plastic glue were used to create the series of works.

總共日本va欧美在线看免费， 13000個(gè)塑料足球運(yùn)動員国产在线观看精品5555、superglue 540支管和塑料膠漿50支管使用創(chuàng)造工作系列。附件：您所在的用戶組無法下載或查看附件

The two sides of main worktable is equipped with two suits of self-center with T grooves, three-paw plate.(one suit can move within 12m drived by a motor) Thus it ensures the flange is vertical with pipe, and accurant location with flange connection screw hole

該機(jī)主工作臺兩端裝有兩套帶T型槽的自定心先锋每日资源网站，三或四爪卡盤久久久久一级无码免费视频，（其中一套由電機(jī)托動可在12米工作范圍內(nèi)自由移動），可保證法蘭與管的垂直黄色在线观看1区，法蘭聯(lián)接螺孔的準(zhǔn)確對位及支管位置支管法蘭的準(zhǔn)確對位不卡欧美在线视频免费观看网站。

The two sides of main worktable is equipped with two suits of self-center with T grooves, three-paw plate.(one suit can move within 12m drived by a motor) Thus it ensures the flange is vertical with pipe, and accurant location with flange conne

該機(jī)主工作臺兩端裝有兩套帶T型槽的自定心亚洲一级片综合视频，三或四爪卡盤，（其中一套由電機(jī)托動可在12米工作范圍內(nèi)自由移動）亚洲,日韩,国产第一区二区，可保證法蘭與管的垂直免费女自慰喷白浆自慰网站，法蘭聯(lián)接螺孔的準(zhǔn)確對位及支管位置支管法蘭的準(zhǔn)確對位。

branch line：支管

branch line tester 支管測試器 | branch line 支管 | branch loop 分路<回路的一個(gè)分支

branch line tester：支管測試器

branch holder 槍把(托 | branch line tester 支管測試器 | branch line 支管

bronchopneumonia：支 ? 管 肺 炎

Bronchitis 支 ? 管 炎 | Bronchopneumonia 支 ? 管 肺 炎 | Common Cold 感 冒

branch duct：(通風(fēng)) 支管

branch支管 | branch duct(通風(fēng)) 支管 | branch pipe支管

branch sewer：污水支管

branch point 分歧點(diǎn) | branch sewer 污水支管 | branch sleeve 支管接套

branch sewer：污水支溝;下水道支溝;污水支管

aerial sewer 露天下水管道 | branch sewer 污水支溝;下水道支溝;污水支管 | brick sewer 磚砌污水溝,磚砌下水道

flask; sidearm：支管燒瓶

支管燒瓶 flask; side neck | 支管燒瓶 flask; side tube | 支管燒瓶 flask; sidearm

filtering flask with side tubulature hard glass：帶支管硬質(zhì)玻璃過濾瓶

filtering flask 過濾瓶 | filtering flask with side tubulature hard glass 帶支管硬質(zhì)玻璃過濾瓶 | filtering flask with side tubulature soft glass 帶支管軟質(zhì)玻璃過濾瓶

filtering flask with side tubulature soft glass：帶支管軟質(zhì)玻璃過濾瓶

filtering flask with side tubulature hard glass 帶支管硬質(zhì)玻璃過濾瓶 | filtering flask with side tubulature soft glass 帶支管軟質(zhì)玻璃過濾瓶 | filtering frame 濾框

filtering flask with side tubulature hard glass：帶支管硬質(zhì)玻璃過濾瓶

filtering flask ==> 過濾瓶 | filtering flask with side tubulature hard glass ==> 帶支管硬質(zhì)玻璃過濾瓶 | filtering flask with side tubulature soft glass ==> 帶支管軟質(zhì)玻璃過濾瓶