網架彈(dan)性(xing)支座(zuo)的結構：主要是(shi)由上座(zuo)板、球(qiu)面聚四(si)氟乙烯(xi)滑(hua)板、球(qiu)芯(xin)、底座(zuo)、平面聚四(si)氟乙烯(xi)滑(hua)板、不銹鋼板和箱(xiang)體、彈(dan)簧等組成(cheng)。
網架(jia)(jia)彈性支(zhi)(zhi)(zhi)座(zuo)(zuo)的工作(zuo)原理：轉(zhuan)(zhuan)(zhuan)角(jiao)是(shi)(shi)由(you)球(qiu)(qiu)芯與上(shang)座(zuo)(zuo)板和底座(zuo)(zuo)的相對轉(zhuan)(zhuan)(zhuan)動(dong)來實(shi)現(xian)(xian)(xian)(xian);位移是(shi)(shi)由(you)底座(zuo)(zuo)在箱體中的滑(hua)移實(shi)現(xian)(xian)(xian)(xian);抗(kang)豎向(xiang)(xiang)拉力(li)(li)(li)(li)(li)由(you)上(shang)座(zuo)(zuo)板、底座(zuo)(zuo)和箱體實(shi)現(xian)(xian)(xian)(xian);水平(ping)力(li)(li)(li)(li)(li)由(you)箱體、底座(zuo)(zuo)和上(shang)座(zuo)(zuo)板實(shi)現(xian)(xian)(xian)(xian)。固定支(zhi)(zhi)(zhi)座(zuo)(zuo)不帶位移箱。支(zhi)(zhi)(zhi)座(zuo)(zuo)又分為雙向(xiang)(xiang)活動(dong)(SX)、單向(xiang)(xiang)活動(dong)(DX)和固定(GD)型(xing)(xing)三種。網架(jia)(jia)彈性支(zhi)(zhi)(zhi)座(zuo)(zuo)該(gai)(gai)(gai)支(zhi)(zhi)(zhi)座(zuo)(zuo)也是(shi)(shi)按照**標準《橋梁球(qiu)(qiu)型(xing)(xing)支(zhi)(zhi)(zhi)座(zuo)(zuo)》GB/T17955-2009，同時參照其它相關行(xing)業規(gui)范(fan)設計(ji)研發的，專門(men)用于(yu)網架(jia)(jia)鋼結(jie)構工程的系(xi)列(lie)產品。該(gai)(gai)(gai)支(zhi)(zhi)(zhi)座(zuo)(zuo)的豎向(xiang)(xiang)承載(zai)力(li)(li)(li)(li)(li)分為300KN-10000KN，14個級別(bie);抗(kang)豎向(xiang)(xiang)拉力(li)(li)(li)(li)(li)為豎向(xiang)(xiang)承載(zai)力(li)(li)(li)(li)(li)的30%;抗(kang)水平(ping)力(li)(li)(li)(li)(li)為豎向(xiang)(xiang)承載(zai)力(li)(li)(li)(li)(li)的20%;徑(jing)向(xiang)(xiang)位移量(liang)：±30mm-±50mm，環向(xiang)(xiang)位移量(liang)：±60mm-±100mm;轉(zhuan)(zhuan)(zhuan)動(dong)摩(mo)擦(ca)系(xi)數：≤0.03。滑(hua)動(dong)摩(mo)擦(ca)系(xi)數：μ≤0.03(-25℃-+60℃);注：特殊型(xing)(xing)號的可另行(xing)設計(ji)。該(gai)(gai)(gai)支(zhi)(zhi)(zhi)座(zuo)(zuo)通過球(qiu)(qiu)面傳力(li)(li)(li)(li)(li)，不出現(xian)(xian)(xian)(xian)力(li)(li)(li)(li)(li)的縮頸現(xian)(xian)(xian)(xian)象，作(zuo)用在上(shang)、下結(jie)構的反力(li)(li)(li)(li)(li)比較均勻;特別(bie)是(shi)(shi)支(zhi)(zhi)(zhi)座(zuo)(zuo)在承受拉力(li)(li)(li)(li)(li)、剪力(li)(li)(li)(li)(li)后(hou)仍可轉(zhuan)(zhuan)(zhuan)動(dong)，且當支(zhi)(zhi)(zhi)座(zuo)(zuo)轉(zhuan)(zhuan)(zhuan)動(dong)后(hou)。
我(wo)公(gong)司(si)的(de)(de)(de)(de)(de)網架支(zhi)(zhi)(zhi)(zhi)座(zuo)的(de)(de)(de)(de)(de)受力(li)(li)部件(jian)均采用(yong)鋼件(jian)，在(zai)200年(nian)內沒(mei)有(you)老(lao)(lao)化問題。抗(kang)震(zhen)(zhen)減(jian)(jian)(jian)(jian)振支(zhi)(zhi)(zhi)(zhi)座(zuo)采用(yong)球面(mian)接觸，接觸面(mian)積(ji)大(da)，壓強低，傳力(li)(li)均勻(yun)(yun)，體積(ji)小，用(yong)鋼量(liang)少。抗(kang)震(zhen)(zhen)減(jian)(jian)(jian)(jian)振支(zhi)(zhi)(zhi)(zhi)座(zuo)采用(yong)減(jian)(jian)(jian)(jian)振彈簧(huang)，可滿足高烈度區工程結構的(de)(de)(de)(de)(de)減(jian)(jian)(jian)(jian)振需要。抗(kang)震(zhen)(zhen)減(jian)(jian)(jian)(jian)振支(zhi)(zhi)(zhi)(zhi)座(zuo)中(zhong)采用(yong)PTEE制品，其(qi)磨擦系(xi)數很小，不老(lao)(lao)化，耐低溫(wen)可達(da)-150℃，保證了支(zhi)(zhi)(zhi)(zhi)座(zuo)轉動的(de)(de)(de)(de)(de)萬向(xiang)靈活性及在(zai)北方寒冷地區的(de)(de)(de)(de)(de)應用(yong)。抗(kang)震(zhen)(zhen)減(jian)(jian)(jian)(jian)振支(zhi)(zhi)(zhi)(zhi)座(zuo)的(de)(de)(de)(de)(de)動、靜(jing)剛度大(da)，保證了車(che)輛運行的(de)(de)(de)(de)(de)平(ping)順(shun)性。抗(kang)震(zhen)(zhen)減(jian)(jian)(jian)(jian)振支(zhi)(zhi)(zhi)(zhi)座(zuo)的(de)(de)(de)(de)(de)作用(yong)使下部結構(柱、墩)受力(li)(li)均勻(yun)(yun)。抗(kang)震(zhen)(zhen)減(jian)(jian)(jian)(jian)振支(zhi)(zhi)(zhi)(zhi)座(zuo)可萬向(xiang)承(cheng)載，即可承(cheng)受壓力(li)(li)，拔力(li)(li)和任意方向(xiang)的(de)(de)(de)(de)(de)剪力(li)(li)。抗(kang)震(zhen)(zhen)減(jian)(jian)(jian)(jian)振支(zhi)(zhi)(zhi)(zhi)座(zuo)高度低，對(dui)橋梁的(de)(de)(de)(de)(de)結構設計有(you)利(li)。體形均勻(yun)(yun)規整，無(wu)論(lun)在(zai)平(ping)面(mian)還是立面(mian)結構的(de)(de)(de)(de)(de)布置。
網架彈性(xing)支(zhi)座(zuo)(zuo)(zuo)的力可作(zuo)相應組合選取，但(dan)情況特殊時(shi)另行復核設計。支(zhi)座(zuo)(zuo)(zuo)設計轉角(jiao)：0.01-0.06rad。活動支(zhi)座(zuo)(zuo)(zuo)位(wei)移量(liang)(±5～±1500)mm，如有特殊需要可另行設計。支(zhi)座(zuo)(zuo)(zuo)磨擦(ca)系(xi)數：u=0.03(常溫：-25℃～40℃)。
