鋼結構網架支座是依據中華人民共和國交(jiao)通行業(ye)標準(zhun)《球形支(zhi)座技術條件(jian)（GB/T17955-2009）及(ji)建(jian)筑(zhu)抗震設計規(gui)范（GB50011-2001）鋼結構(gou)設計規(gui)范（GB50017-2003），經詳細的靜力學、動力學分析研制而(er)成的新(xin)型抗震減振鋼支(zhi)座。抗震減振支(zhi)座結構(gou)更加合理，性(xing)能更加可靠，使用壽命(ming)更長。

    鋼結構網架支座（又(you)名(ming)鋼(gang)(gang)結構(gou)(gou)支(zhi)(zhi)座(zuo)(zuo)）分為(wei)四個(ge)類型(xing)(xing)：GKQZ型(xing)(xing)鋼(gang)(gang)結構(gou)(gou)抗(kang)(kang)(kang)震(zhen)(zhen)鋼(gang)(gang)球(qiu)(qiu)支(zhi)(zhi)座(zuo)(zuo)、GJQZ型(xing)(xing)鋼(gang)(gang)結構(gou)(gou)減(jian)(jian)(jian)震(zhen)(zhen)鋼(gang)(gang)球(qiu)(qiu)支(zhi)(zhi)座(zuo)(zuo)、GKGZ型(xing)(xing)鋼(gang)(gang)結構(gou)(gou)抗(kang)(kang)(kang)震(zhen)(zhen)球(qiu)(qiu)型(xing)(xing)鋼(gang)(gang)支(zhi)(zhi)座(zuo)(zuo)、GJGZ型(xing)(xing)鋼(gang)(gang)結構(gou)(gou)減(jian)(jian)(jian)震(zhen)(zhen)球(qiu)(qiu)型(xing)(xing)鋼(gang)(gang)支(zhi)(zhi)座(zuo)(zuo)。該(gai)支(zhi)(zhi)座(zuo)(zuo)包(bao)括固定支(zhi)(zhi)座(zuo)(zuo)（代碼為(wei)GD）、單向(xiang)支(zhi)(zhi)座(zuo)(zuo)（代號為(wei)DX）、雙向(xiang)支(zhi)(zhi)座(zuo)(zuo)（代號為(wei)SX）三種型(xing)(xing)式，22個(ge)等級，其水平承載力(li)、豎直方向(xiang)拔(ba)力(li)及(ji)支(zhi)(zhi)座(zuo)(zuo)的整體強度(du)均比普通支(zhi)(zhi)座(zuo)(zuo)有(you)大(da)幅度(du)提(ti)高。該(gai)系(xi)(xi)列支(zhi)(zhi)座(zuo)(zuo)采用(yong)彈(dan)性(xing)(xing)減(jian)(jian)(jian)振元件，當水平力(li)大(da)到一(yi)定程度(du)后，減(jian)(jian)(jian)振彈(dan)簧開始(shi)發(fa)生(sheng)彈(dan)性(xing)(xing)變形實現緩(huan)沖(chong)作用(yong)。當結構(gou)(gou)發(fa)生(sheng)轉角時，球(qiu)(qiu)芯產生(sheng)轉動，釋(shi)放(fang)上(shang)(shang)部結構(gou)(gou)產生(sheng)的轉矩。地(di)震(zhen)(zhen)時，剛性(xing)(xing)抗(kang)(kang)(kang)震(zhen)(zhen)措施(shi)和柔性(xing)(xing)減(jian)(jian)(jian)振措施(shi)同時發(fa)生(sheng)作用(yong)，以(yi)抵(di)御(yu)巨大(da)的地(di)震(zhen)(zhen)輸入能量，這樣既(ji)能保(bao)(bao)證橋梁上(shang)(shang)、下(xia)結構(gou)(gou)合理(li)相(xiang)對(dui)位移，減(jian)(jian)(jian)小(xiao)地(di)震(zhen)(zhen)力(li)的放(fang)大(da)系(xi)(xi)數，又(you)使結構(gou)(gou)保(bao)(bao)持統一(yi)性(xing)(xing)。該(gai)支(zhi)(zhi)座(zuo)(zuo)可抵(di)御(yu)8-11度(du)地(di)震(zhen)(zhen)，對(dui)高烈(lie)度(du)地(di)震(zhen)(zhen)區(qu)尤(you)其直下(xia)型(xing)(xing)地(di)震(zhen)(zhen)區(qu)的工程結構(gou)(gou)有(you)良好的抗(kang)(kang)(kang)震(zhen)(zhen)減(jian)(jian)(jian)振作用(yong)。